Rearview mirror

Abstract

The rearview mirror comprises a connecting rod, one end of the connecting rod is provided with a locking part, the locking part is used for locking a tightening ring and a rotary reset piece connected with a mirror shell, the locking part is provided with a containing cavity with a lateral opening, the opening end of the containing cavity extends in the lateral direction to form a front connecting piece and a rear connecting piece, and the front connecting piece is provided with an elastic connecting part; the adjusting part penetrates through the through hole of the elastic connecting part and is in threaded connection with the rear connecting part, the tightening ring is arranged in the containing cavity, a tightening cavity is formed in the tightening ring, the tightening ring is provided with a lateral opening, the opening end transversely extends to form an abutting arm, and the abutting arm is located on the inner side of the elastic connecting part and is close to the elastic connecting part. In the process of tightening the adjusting piece, the elastic connecting part is continuously pressed inwards by the adjusting piece, the elastic connecting part continuously presses the abutting arm till the rotating reset piece is fixed, the locking structure is improved, limitation of the rearview mirror material is broken through, practicability is improved, locking is more stable through the locking mode, and the service life of the rearview mirror is prolonged. And the rearview mirror is prevented from being influenced by the rotating part in the resetting process.

Description

Technical Field

[0001] The invention relates to a rearview mirror. Background Art

[0002] The rearview mirror is a tool for the driver to directly obtain external information such as the rear, side and bottom of the car when sitting in the driver's seat. In order to facilitate the operation of the driver, prevent the occurrence of traffic safety accidents and ensure personal safety, all countries have stipulated that rearview mirrors must be installed on cars, and all rearview mirrors must be able to adjust the direction. The applicant is targeting a rearview mirror with automatic reset. After the rearview mirror angle is initially set, the set angle of the rearview mirror needs to be locked, and the angle is reset by a reset member after the rearview mirror collides. It is found that the locking method on the market is based on the rearview mirror material being plastic. The initial angle is fixed by the plastic deformation of the plastic itself and the tightening of the bolts. This locking method is only applicable to plastic materials, and cannot be fully applicable to other materials, such as aluminum alloy materials. The angle cannot be fixed by plastic deformation and the tightening of the bolts, resulting in low practicality. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a rearview mirror which, by improving the locking structure, breaks through the limitations of the material of the rearview mirror, improves practicality, and makes the locking more stable, thus preventing the rearview mirror from being affected by the rotating part during the resetting process.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rearview mirror comprises a connecting rod, a locking portion is provided at one end of the connecting rod, the locking portion is used to lock a tightening ring and a rotating reset piece connected to the mirror housing, the locking portion is provided with a accommodating cavity with a laterally opening, the open end of the accommodating cavity extends laterally to form a front connecting piece and a rear connecting piece, the front connecting piece is provided with an elastic connecting portion, the adjusting piece passes through a through hole of the elastic connecting portion and is threadedly connected to the rear connecting piece, the tightening ring is placed in the accommodating cavity, a tightening cavity is provided in the tightening ring and the lateral opening is provided, the open end extends laterally to form an abutment arm, the abutment arm is located on the inner side of the elastic connecting portion and the two are close to each other, and in the process of tightening the adjusting piece, the elastic connecting portion is continuously pressed inward by the adjusting piece, and the elastic connecting portion continuously presses the abutment arm until the rotating reset piece is fixed.

[0005] Furthermore, the elastic connecting portion is formed by a U-groove on the front connecting member.

[0006] Furthermore, the rotational reset part includes a rotating part and a reset part, the reset part is arranged in the extension part and the extension part is connected to the mirror housing, the extension part is divided into an upper connecting groove and a lower connecting groove by a central space block, the reset part is arranged in the upper connecting groove, the rotating part is arranged in the tightening ring, and the rotating part is connected to the extension part and the reset part through the connecting part.

[0007] Furthermore, a rolling and rotating fitting part is provided between the rotating part and the lower connecting groove, and the rolling and rotating fitting part is used to reduce the friction between the lower connecting groove and the rotating part. The rolling and rotating fitting part includes an upper plane washer, a lower plane washer and a plurality of steel balls distributed between the upper plane washer and the lower plane washer, and the upper and lower plane washers are provided with annular grooves corresponding to the steel balls.

[0008] Furthermore, the rotating part includes a rotating rod, a sphere with a cavity is provided in the upper end of the rotating rod, a hollow rod connected to the cavity is provided at the lower end, and a receiving plate is provided between the hollow rod and the sphere, and the receiving plate is used to receive the rolling rotating matching part.

[0009] Furthermore, the reset member includes a first reset block installed in the upper connecting groove and a second reset block matched with the first reset block, the first reset block and the second reset block are both provided with through holes in the middle for the connecting member to pass through, the first reset block and the second reset block have mutually matched end faces that are uneven, the first reset block is provided with a groove, and the second reset block is provided with a protrusion corresponding to the groove.

[0010] Furthermore, the reset part also includes a compensation block vertically slidingly connected to the through hole inside the second reset block, and the second reset block is provided with a plurality of fan-shaped notches corresponding to the upper end of the hollow rod, and a fan-shaped block that gradually becomes smaller from bottom to top is provided inside the second reset block, and the compensation block fits with the fan-shaped notches after being assembled with the fan-shaped block.

[0011] Furthermore, the connecting part includes a spring arranged in a cavity, the spring is sleeved on a screw rod, the screw rod passes through the connecting part, the extension part and the reset part and is connected to a nut, and at least one gasket is provided between the nut and the reset part and between the spring and the end of the screw rod.

[0012] Furthermore, there is a certain gap between the tightening ring and the bottom of the accommodating cavity, and the gap provides redundant space for the end portion to move up and down when compressed by the spring.

[0013] Furthermore, the other end of the connecting rod is connected to a mounting portion, and the mounting portion is used to be connected to the vehicle body.

[0014] Beneficial effects:

[0015] 1. The locking part of the prior art that is used to fix the original angle of the rearview mirror after setting is based on plastic material. The locking is performed due to the deformation plasticity of the plastic material itself. However, the present application improves the locking part, and the locking method of the locking part is not limited to plastic material. It can be locked for materials such as aluminum alloy, and the increased tightening degree of the locking part further improves the stability of the fixing after the original angle is set, and it is not easy to loosen.

[0016] 2. The rearview mirror of the present application has a rotating reset member, which includes a rotating portion and a reset portion. The reset portion is used to restore the rearview mirror to an originally set angle after the rearview mirror is deflected. In order to reduce the deflection of the rearview mirror caused by external forces in the present application, corresponding grooves and protrusions are provided on the first reset block and the second reset block in the reset portion. The damping is increased by the setting of the grooves and protrusions, making it less likely to deflect.

[0017] 3. In the prior art, the rearview mirror is prone to wear between the rearview mirror housing and the rotating part during long-term collision and deflection. Therefore, the present application provides a rolling and rotating matching part between the lower connecting groove and the rotating part, and the rolling and rotating matching part converts sliding friction into rolling friction, thereby reducing friction and avoiding wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional schematic diagram of a rearview mirror;

[0019] Figure 2 It is a schematic diagram of the disassembly of the rotation reset part, the tightening ring and the locking part;

[0020] Figure 3 for Figure 1 Disassembly diagram of

[0021] Figure 4 is a schematic diagram of a locking portion;

[0022] Figure 5 is a schematic diagram of a reset block and an extension;

[0023] Figure 6 It is a schematic diagram of the middle space block and the lower connecting groove;

[0024] Figure 7 It is a schematic diagram of disassembling the rotating reset part and the connecting part;

[0025] Figure 8 is a schematic cross-sectional view of a rotating rod;

[0026] Fig. 9 It is a schematic diagram of a rearview mirror including an additional structural mounting portion.

[0027] Figure numerals: 1, connecting rod; 2, locking part; 21, accommodating cavity; 22, front connecting piece; 23, rear connecting piece; 3, tightening ring; 31, abutting arm; 4, mirror housing; 5, rotation reset piece; 6, elastic connecting part; 7, adjusting piece; 8, rotating part; 81, rotating rod; 82, sphere; 83, cavity; 84, hollow rod; 85, receiving plate; 86, fan-shaped notch; 9, reset part; 91, first reset block; 92, first reset block Two reset blocks; 921, fan-shaped block; 93, groove; 94, protrusion; 95, compensation block; 10, connecting piece; 101, spring; 102, screw; 103, nut; 104, gasket; 11, extension part; 111, center space stop; 112, upper connecting groove; 113, lower connecting groove; 12, rolling and rotating matching part; 121, upper plane washer; 122, lower plane washer; 123, steel ball; 13, installation part. DETAILED DESCRIPTION

[0028] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0029] Refer to Figure 1-Figure 9As shown, the present invention provides a rearview mirror, which includes a connecting rod 1, a locking portion 2 is provided at one end of the connecting rod 1, the locking portion 2 is used to lock the tightening ring 3 and the rotation reset member 5 connected to the mirror housing 4, the rotation reset member 5 includes a rotating portion 8 and a reset portion 9, the rotating portion 8 includes a rotating rod 81, the upper end of the rotating rod 81 is a sphere 82 with a cavity 83 therein, the locking portion 2 is provided with a accommodating cavity 21 with a lateral opening, the open end of the accommodating cavity 21 extends laterally to form a front connecting member 22 and a rear connecting member 23, and the front connecting member 22 has an elastic The connecting part 6 and the adjusting member 7 are threadedly connected to the rear connecting member 23 through the through hole of the elastic connecting part 6. The tightening ring 3 is placed in the accommodating cavity 21. The tightening ring 3 is provided with a tightening cavity and is open laterally. The open end is extended laterally to form an abutment arm 31. The abutment arm 31 is located on the inner side of the elastic connecting part 6 and the two are close to each other. During the process of tightening the adjusting member 7, the elastic connecting part 6 is continuously pressed inward by the adjusting member 7, and the elastic connecting part 6 continuously presses the abutment arm 31 until the rotating reset member 5 is fixed. The elastic connecting part 6 is formed by the U-groove on the front connecting member 22. The middle part of the internal shape of the tightening cavity is arc-shaped and fits the outer periphery of the sphere 82. The upper end of the arc shape extends vertically upward in a cylindrical shape, and the lower end of the arc shape extends obliquely in a truncated cone shape. The groove shape of the present application is U-shaped, and other shapes are also applicable as long as they can form the elastic connecting part 6. In order to further increase the contact area between the elastic connection part 6 and the tightening ring 3, a protrusion is vertically extended from the upper end of the part of the elastic connection part 6 distributed in the accommodating chamber 21, so as to increase the pressing area and realize better tightening of the tightening ring 3. The adjusting member 7 is a screw 102 and a nut 103. The elastic connection part 6 is pressed by the rotation of the screw 102, thereby driving the tightening of the tightening ring 3. The abutment arm 31 extending laterally from the open end of the tightening ring 3, the abutment arm 31 in the present application is one long and one short, and the long abutment arm 31 is L-shaped, and the extended part of the long abutment arm 31 is limited between the screw 102 and the bottom of the accommodating chamber 21, so as to limit the tightening ring 3 from driving the rotation reset member 5 to leave the accommodating chamber 21. After the rotating part 8 is fixed, the reset part 9 drives the mirror housing 4 to realize rotation reset with the rotating part 8 as the axis when a collision occurs. In the prior art, since the locking part 2 is made of plastic material, the rotating part 8 is fixed by plastic deformation of the plastic, which makes it impossible to apply to rearview mirrors made of other materials (such as aluminum alloy). In order to overcome this defect, the present application has re-improved the locking part 2, and the tightening of the tightening ring 3 is achieved through the elastic connecting part 6 under the adjustment of the adjusting member 7, which is more convenient and quick, and is not affected by the material.

[0030] Refer to Figure 6As shown, the reset portion 9 is arranged in the extension portion 11 and the extension portion 11 is connected to the mirror housing 4. The present application is integrally formed. The extension portion 11 is divided into an upper connecting groove 112 and a lower connecting groove 113 by a central space block 111. The reset portion 9 is arranged in the upper connecting groove 112, and the rotating portion 8 is arranged in the tightening ring 3. The rotating portion 8 is connected to the extension portion 11 and the reset portion 9 through a connecting member 10. The connecting member 10 includes a spring 101 arranged in the cavity 83 of the sphere 82, and the spring 101 is sleeved on the screw 102. The screw 102 passes through the connecting portion, the extension portion 11 and the reset portion 9 and is connected to the nut 103. At least one gasket 104 is installed between the nut 103 and the reset portion 9 and between the spring 101 and the end of the screw 102. When the rearview mirror collides and deflects, the reset portion 9 is misaligned and an upward force is generated, which drives the screw 102 to move upward, so that the spring 101 is compressed upward in the cavity 83. When a collision occurs, the restoring force of the spring 101 itself pushes the screw 102 and the gasket 104 downward, so that the internal components of the reset portion 9 generate a reset force, so that the extension portion 11 is reset to the original set angle with the rotating rod 81 as the axis, so that the interior of the reset portion 9 fits again.

[0031] Specifically, Figure 8 As shown, the lower end of the rotating rod 81 is provided with a hollow rod 84 connected to the cavity 83, and a receiving plate 85 is provided between the hollow rod 84 and the sphere 82. The receiving plate 85 is used to receive the rolling and rotating matching part 12. The rolling and rotating matching part 12 is used to reduce the friction between the lower connecting groove 113 and the rotating part 8. The rolling and rotating matching part 12 includes an upper plane washer 121, a lower plane washer 122 and a plurality of steel balls 123 distributed between the upper and lower plane washers 122. The upper and lower plane washers 122 are provided with annular grooves corresponding to the steel balls 123. The annular grooves are used to limit the movement trajectory of the steel balls 123 to prevent the steel balls 123 from deviating. The rolling and rotating matching part 12 is used to achieve flexibility when resetting the mirror housing 4, improve fluidity, and also reduce wear caused by friction between the two. The end face of the hollow rod 84 facing the reset part 9 is provided with a plurality of fan-shaped notches 86.

[0032] The reset portion 9 includes a first reset block 91 installed in the upper connection groove 112 and a second reset block 92 that fits with the first reset block 91. The first reset block 91 in the present application is connected to the upper connection groove 112 by a limit block and a limit groove to prevent the first reset block 91 from rotating by itself. The middle of the first reset block 91 and the second reset block 92 are both provided with a through hole for the connecting member 10 to penetrate, and the connecting member 10 is used to connect the rotating portion 8, the extension portion 11 and the reset portion 9. The upper end surface of the first reset block 91 is provided with a high groove 93 and a low groove 93, and the end surface between the high groove 93 and the low groove 93 is provided with a first inclined surface inclined from the high groove 93 to the low groove 93, the second reset block 92 is provided with a corresponding high protrusion 94 corresponding to the high groove 93, and a low plane corresponding to the low groove 93, and the end surface between the high protrusion 94 and the low plane is provided with a second inclined surface that fits the first inclined surface. In this application, by correspondingly providing the high groove 93 and the high protrusion 94 on the first reset block 91 and the second reset block 92, damping is increased, and the deflection of the rearview mirror caused by external forces (such as strong wind) in the prior art is avoided. At the same time, the setting of the high groove 93 and the high protrusion 94 will not affect the reset of the deflected rearview mirror by the multiple first and second inclined surfaces between the first reset block 91 and the second reset block 92 under the action of the connecting member 10. The reset part 9 also includes a compensation block 95 that is vertically slidably connected to the internal through hole of the second reset block 92, and the compensation block 95 can only move up and down but cannot rotate. The second reset block 92 is provided with a plurality of fan-shaped notches 86 corresponding to the internal sector blocks 921 which gradually become smaller from the bottom to the top. The compensation block 95 is also provided with a plurality of polygonal blocks corresponding to the fan-shaped notches 86. After the polygonal blocks and the fan-shaped blocks 921 are assembled, they fit with the fan-shaped notches 86 (the compensation block 95 is a prior art and will not be elaborated here). When the mirror housing 4 collides and rotates, the second reset block 92 and the first reset block 91 are misaligned and rotate upward, and the compensation block 95 moves upward, thereby driving the screw 102 to move upward, and the spring 101 is in a compressed state. After the collision occurs, the restoring force of the spring 101 itself will push the gasket 104 to move downward, thereby driving the screw 102 to move downward, and generating a reset force when the compensation block 95 and the first reset block 91 move downward. The second reset block 92 restores the mirror housing 4 to the original set angle with the rotating rod 81 as the axis.

[0033] Refer to Figure 4 As shown, there is a certain gap between the tightening ring 3 and the bottom of the accommodating cavity 21 , and the gap provides redundant space for the end of the screw rod 102 to move up and down when compressed by the spring 101 , thereby avoiding contact friction between the screw rod 102 and the accommodating cavity 21 .

[0034] Refer to Figure 1 , Fig. 9As shown, the other end of the connecting rod 1 is connected to a mounting portion 13, and the mounting portion 13 is used to be connected to the vehicle body. In the present application, the settings of different mounting portions 13 for different vehicle body installation methods are also different.

[0035] Specifically, Figure 1 The other end of the connecting rod 1 forms a rod body with a certain taper between the diameters, and the end of the rod body is provided with a threaded hole, and the threaded hole is connected to the screw 102. The rod body is provided with a connector 10 connected to the vehicle body. The connection tightness between the connector 10 and the rod body is achieved by rotating the screw 102. The connector 10 includes a socket block sleeved on the rod body, and the socket block is threadedly connected to the connecting rod 1 with a ball 82. The mounting portion 13 is based on a specific vehicle model. Fig. 9 As shown, another embodiment is to fix the rearview mirror on the vehicle body through a screw 102 and a gasket 104. The mounting portion 13 is suitable for most vehicle models.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A rearview mirror, characterized in that: The invention comprises a connecting rod (1), one end of which is provided with a locking portion (2), the locking portion (2) being used to lock a tightening ring (3) and a rotation reset member (5) connected to a mirror housing (4), the locking portion (2) being provided with a accommodating cavity (21) with a lateral opening, the open end of the accommodating cavity (21) extending laterally to form a front connecting member (22) and a rear connecting member (23), the front connecting member (22) being provided with an elastic connecting portion (6), the adjusting member (7) passing through a through hole of the elastic connecting portion (6) and being connected to the rear connecting member (23) The rear connecting member (23) is threadedly connected, and the tightening ring (3) is placed in the accommodating cavity (21). The tightening ring (3) is provided with a tightening cavity and is laterally open. The open end is laterally extended to form an abutment arm (31). The abutment arm (31) is located on the inner side of the elastic connecting part (6) and the two are close to each other. During the process of tightening the adjusting member (7), the elastic connecting part (6) is continuously pressed inward by the adjusting member (7), and the elastic connecting part (6) continuously presses the abutment arm (31) until the rotation reset member (5) is fixed.

2. The rearview mirror according to claim 1, characterized in that: The elastic connecting portion (6) is formed by a U-shaped groove on the front connecting piece (22).

3. The rearview mirror according to claim 2, characterized in that: The rotational reset member (5) comprises a rotational portion (8) and a reset portion (9); the reset portion (9) is arranged in an extension portion (11) and the extension portion (11) is connected to a mirror housing (4); the extension portion (11) is divided into an upper connecting groove (112) and a lower connecting groove (113) by a center spacer (111); the reset portion (9) is arranged in the upper connecting groove (112); the rotational portion (8) is arranged in a tightening ring (3); and the rotational portion (8) is connected to the extension portion (11) and the reset portion (9) via a connecting portion.

4. The rearview mirror according to claim 3, characterized in that: A rolling and rotating matching portion (12) is provided between the rotating portion (8) and the lower connecting groove (113), and the rolling and rotating matching portion (12) is used to reduce the friction between the lower connecting groove (113) and the rotating portion (8). The rolling and rotating matching portion (12) comprises an upper plane washer (121), a lower plane washer (122), and a plurality of steel balls (123) distributed between the upper plane washer (121) and the lower plane washer (122), and annular grooves are provided on the upper and lower plane washers (122) corresponding to the steel balls (123).

5. The rearview mirror according to claim 4, characterized in that: The rotating part (8) comprises a rotating rod (81), a sphere (82) with a cavity (83) is arranged at the upper end of the rotating rod (81), a hollow rod (84) communicating with the cavity (83) is arranged at the lower end, a receiving plate (85) is arranged between the hollow rod (84) and the sphere (82), and the receiving plate (85) is used to receive the rolling rotating matching part (12).

6. The rearview mirror according to claim 5, characterized in that: The reset member comprises a first reset block (91) installed in the upper connecting groove (112) and a second reset block (92) matched with the first reset block (91); the first reset block (91) and the second reset block (92) are both provided with through holes in the middle for the connecting member (10) to pass through; the first reset block (91) and the second reset block (92) have uneven end surfaces when they are matched with each other; the first reset block (91) is provided with a groove (93); and the second reset block (92) is provided with a protrusion (94) corresponding to the groove (93).

7. The rearview mirror according to claim 6, characterized in that: The reset portion (9) further comprises a compensation block (95) vertically slidably connected to the through hole inside the second reset block (92); a plurality of fan-shaped notches (86) arranged inside the second reset block (92) corresponding to the upper end of the hollow rod (84) are provided with a fan-shaped block (921) gradually decreasing in size from the bottom to the top; the compensation block (95) fits in with the fan-shaped notches (86) after being assembled with the fan-shaped block (921).

8. The rearview mirror according to claim 7, characterized in that: The connecting portion comprises a spring (101) arranged in a cavity (83), the spring (101) being sleeved on a screw rod (102), the screw rod (102) being connected to a nut (103) after passing through the connecting portion, the extension portion (11) and the reset portion (9), and at least one gasket (104) is provided between the nut (103) and the reset portion (9) and between the spring (101) and an end of the screw rod (102).

9. The rearview mirror according to claim 8, characterized in that: There is a certain gap between the tightening ring (3) and the bottom of the accommodating cavity (21), and the gap provides redundant space for the end portion to move up and down when expanded and compressed by the spring (101).

10. The rearview mirror according to claim 9, characterized in that: The other end of the connecting rod (1) is connected to a mounting portion (13), and the mounting portion (13) is used to be connected to a vehicle body.

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