Anti-loosening connection structure for mount and support stem of rearview mirror, and vehicle

Abstract

An anti-loosening connection structure for a mount and a support stem of a rearview mirror, the anti-loosening connection structure comprising: an upper mount (2), the upper mount being provided with a connection hole (21); a support stem (1), one end of the support stem being provided on the top surface of the upper mount, the support stem being threadedly connected to a fixing bolt (3), and one end of the fixing bolt being coaxially provided in the connection hole; a rotating block (5), the rotating block being sleeved on the outer wall of the fixing bolt and being located below the connection hole, and the top surface of the rotating block being in close contact with the inner top wall of the upper mount; and a nut (4), the nut being threadedly connected to the end of the fixing bolt passing through the connection hole to the outside. Also provided is a vehicle having the anti-loosening connection structure for a mount and a support stem of a rearview mirror. Since the friction force between the nut and the rotating block is greater than the friction force between the rotating block and the upper mount, the rotating block and the upper mount rotate relative to each other, and there is no relative movement or relative acting force between the rotating block and the nut and between the rotating block and the fixing bolt, such that the risk of connection loosening of the nut and the fixing bolt is prevented, thereby improving the anti-loose performance of rearview mirrors.

Description

A rearview mirror support and support rod arm anti-loose connection structure and vehicle TECHNICAL FIELD

[0001] The present application relates to the field of rearview mirrors, in particular to a rearview mirror support and support rod arm anti-loose connection structure and vehicle. BACKGROUND

[0002] Adjusting the left and right rearview mirrors is an important step in driving preparation, ensuring that the driver has the best range of vision. Left rearview mirror adjustment: when adjusting, let the front door handle appear in the lower right corner of the left rearview mirror. Looking longitudinally, the car body should occupy one quarter of the mirror; looking laterally, the road and the sky should each occupy half of the mirror. Such adjustment can provide a wide range of vision while ensuring that the car body and the surrounding environment are clearly visible. Right rearview mirror adjustment: when adjusting the right rearview mirror, the front door handle should appear in the lower left corner of the mirror. Looking longitudinally, the car body also occupies one quarter; but looking laterally, since the driver is positioned to the left, in order to obtain a wider right-side road view, the road should occupy two-thirds of the mirror and the sky one-third. Correct rearview mirror adjustment helps improve driving safety, allowing the driver to clearly see the surrounding environment when driving and reversing.

[0003] In related technologies, the upper support and support rod arm of the traditional rearview mirror are connected by a spring. In order to ensure the spring force, the axial size of the spring is relatively large, resulting in a large space required for the connection structure. Moreover, the spring has the risk of spring force decay, and when the rebound force decays, the connection between the support and the support rod arm has the risk of loosening. SUMMARY

[0004] The present application provides a rearview mirror support and support rod arm anti-loose connection structure and vehicle. Because the friction between the nut and the rotating block is greater than the friction between the rotating block and the upper support, the folding rotation force first overcomes the friction between the rotating block and the upper support, the rotating block rotates relative to the upper support, the rotating block does not move relative to the nut, and the nut also rotates synchronously, without relative movement and relative force with the fixed bolt, thereby avoiding the problems of a large space required for the connection structure and the risk of connection loosening due to the use of a traditional spring connection and the rebound force decay.

[0005] In a first aspect, the embodiments of the present application provide a rearview mirror support and support rod arm anti-loose connection structure, which comprises:

[0006] an upper support, the upper support being provided with a connecting hole;

[0007] a support rod arm, one end of the support rod arm being arranged on the top surface of the upper support, and the support rod arm being threadedly connected with a fixed bolt, one end of the fixed bolt being coaxially arranged in the connecting hole;

[0008] A rotating block is sleeved on the outer wall of the fixing bolt and located below the connecting hole, and the top surface of the rotating block is in abutting contact with the inner top wall of the upper support;

[0009] A nut is threadedly connected to the end of the fixing bolt outside the connecting hole and in abutting contact with the bottom surface of the rotating block, and the friction between the nut and the rotating block is greater than the friction between the rotating block and the upper support.

[0010] In combination with the first aspect, in an implementation manner, the connecting hole is in a frustum shape, and the inner diameter of the connecting hole gradually decreases along the direction from the other end of the fixing bolt to the end of the fixing bolt.

[0011] One end of the support arm extends a frustum extension one, which is arranged in the connecting hole and in abutting contact with the inner side wall of the connecting hole.

[0012] In combination with the first aspect, in an implementation manner, a frustum groove is formed at one end of the support arm, the inner diameter of the frustum groove gradually increases along the direction from the other end of the fixing bolt to the end of the fixing bolt, and the frustum extension one is coaxially arranged on the inner bottom wall of the frustum groove.

[0013] The top surface of the upper support extends a frustum extension two, the diameter of the frustum extension two gradually increases along the direction from the other end of the fixing bolt to the end of the fixing bolt, the connecting hole is coaxially arranged on the top of the frustum extension two, and the frustum extension two is coaxially arranged in the frustum groove.

[0014] In combination with the first aspect, in an implementation manner, the narrow end of the frustum extension one and the frustum extension two is in a rounded corner shape.

[0015] In combination with the first aspect, in an implementation manner, the top surface of the rotating block extends a boss extension one, which is arranged in the connecting hole.

[0016] In combination with the first aspect, in an implementation manner, the bottom surface of the support arm is provided with a receiving hole, and the receiving hole is coaxially arranged with the connecting hole.

[0017] The top surface of the boss extension one extends a boss extension two, which is arranged in the receiving hole.

[0018] In combination with the first aspect, in an implementation manner, a gasket is sleeved on the outer wall of the end of the fixing bolt, and the gasket is located between the rotating block and the nut.

[0019] With reference to the first aspect, in an embodiment, the bottom surface of the rotating block extends two clamping blocks, and the sidewall of the gasket is provided with two notches.

[0020] The two clamping blocks correspond to the two notches one by one and are arranged in the corresponding notches.

[0021] With reference to the first aspect, in an embodiment, the rearview mirror support and the support arm anti-loose connection structure further comprises:

[0022] a lower support, which is rotationally connected with the support arm.

[0023] The second aspect, the embodiments of the present application provide a vehicle, which comprises the rearview mirror support and the support arm anti-loose connection structure as described in some embodiments above.

[0024] The technical scheme provided by the embodiments of the present application has the following beneficial effects:

[0025] When the support arm needs to be folded and rotated relative to the upper support or the support arm appears to be folded and rotated forward and backward relative to the upper support due to vibration during driving, the fixing bolt rotates synchronously with the support arm, since the rotating block is sleeved and fixed to the outer wall of the fixing bolt and is located below the connecting hole, and the top surface of the rotating block is in abutting contact with the inner top wall of the upper support, the abutting contact position of the rotating block and the upper support rotates; the friction between the nut and the rotating block is greater than the friction between the rotating block and the upper support, the folding and rotating force first overcomes the friction between the rotating block and the upper support, the rotating block and the upper support rotate relative to each other, the rotating block does not move relative to the nut, and the nut also rotates synchronously, without relative movement and relative force with the fixing bolt, so as to ensure that the axial force of the connection structure remains stable axial compression force, the support arm and the upper support have stable compression force, and the reliability of the connection structure is improved. The traditional rearview mirror upper support and the support arm are connected by a spring, which results in a large space required for the connection structure; and when the rebound force of the spring decays, the connection between the support and the support arm is loose. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings required in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0027] FIG. 1 is a perspective structural schematic view of the connection between the upper support, the lower support and the support arm;

[0028] FIG. 2 is a sectional structural schematic view of the connection between the upper support and the support arm;

[0029] FIG. 3 is a partial enlarged structural schematic view of the top end of the support arm.

[0030] In the figure: 1, the support arm; 11, the upper shell; 12, the lower shell; 13, the circular table extension one; 14, the circular table groove; 15, the containing hole; 2, the upper support; 21, the connecting hole; 22, the circular table extension two; 3, the fixed bolt; 4, the nut; 5, the rotating block; 51, the boss extension one; 52, the boss extension two; 53, the clamping block; 6, the gasket; 61, the notch; 7, the lower support; 8, the mirror body. DETAILED DESCRIPTION

[0031] In order to make the person skilled in the art better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] It should be understood that adjusting the left and right rearview mirrors is an important step in driving preparation, ensuring that the driver has the best range of vision. Left rearview mirror adjustment: when adjusting, let the front door handle appear in the lower right corner of the left rearview mirror. Looking longitudinally, the car body should occupy one quarter of the mirror; looking laterally, the road and the sky should each occupy half of the mirror. Such adjustment can provide a wide field of view while ensuring that the car body and the surrounding environment are clearly visible. Right rearview mirror adjustment: when adjusting the right rearview mirror, the front door handle should appear in the lower left corner of the mirror. Looking longitudinally, the car body also occupies one quarter; but looking laterally, due to the left position of the driver, in order to obtain a wider right road view, the road should occupy two-thirds of the mirror and the sky one-third. Correct rearview mirror adjustment helps to improve driving safety, allowing the driver to clearly see the surrounding environment when driving and reversing.

[0033] Among them, the traditional rearview mirror upper support and the support arm are connected by a spring, in order to ensure the spring force, the axial size of the spring is large, resulting in a large space required for the connection structure; and the spring has the risk of spring force decay, when the rebound force decays, the connection between the support and the support arm has the risk of loose connection.

[0034] The embodiments of the present application provide a rearview mirror support and support arm anti-loose connection structure and a vehicle, because the friction between the nut and the rotating block is greater than the friction between the rotating block and the upper support, the folding rotation force first overcomes the friction between the rotating block and the upper support, the rotating block and the upper support rotate relative to each other, the rotating block does not move relative to the nut, and the nut also rotates synchronously, without relative movement and relative force with the fixed bolt, avoiding the problems of large space required for the connection structure and rebound force decay caused by the traditional spring connection, resulting in loose connection.

[0035] In the first aspect, as shown in FIG. 1 and FIG. 2, the application provides a rearview mirror support and support rod arm anti-loose connection structure, which comprises an upper support 2 provided with a connecting hole 21; a support rod arm 1, one end of which is arranged on the top surface of the upper support 2, and the support rod arm 1 is threadedly connected with a fixing bolt 3, one end of the fixing bolt 3 is coaxially arranged in the connecting hole 21; a rotating block 5, which is sleeved on the outer wall of the fixing bolt 3 and located below the connecting hole 21, and the top surface of the rotating block 5 is in contact with the inner top wall of the upper support 2; and a nut 4, which is threadedly connected with the end of the fixing bolt 3 penetrating out of the connecting hole 21 and in contact with the bottom surface of the rotating block 5, and the friction between the nut 4 and the rotating block 5 is greater than the friction between the rotating block 5 and the upper support 2.

[0036] For example, referring to FIG. 2, the top surface of the upper support 2 is provided with a connecting hole 21, the top end of the support rod arm 1 is arranged on the top surface of the upper support 2, the support rod arm 1 is internally embedded with a fixing bolt 3 which is threadedly connected, and the fixing bolt 3 is coaxially arranged with the connecting hole 21 and penetrates through the connecting hole 21, the rotating block 5 is fixed on the outer wall of the fixing bolt 3 and located below the connecting hole 21, and the rotating block 5 is in contact with the inner top wall of the upper support 2, the nut 4 is threadedly connected with the bottom end of the fixing bolt 3 and in contact with the bottom surface of the rotating block 5. The friction between the nut 4 and the rotating block 5 is greater than the friction between the rotating block 5 and the upper support 2.

[0037] Specifically, when the support rod arm 1 needs to be folded and rotated relative to the upper support 2 or the support rod arm 1 is folded and rotated relative to the upper support 2 due to vibration during driving, the fixing bolt 3 rotates synchronously with the support rod arm 1, the rotating block 5 is sleeved and fixed on the outer wall of the fixing bolt 3 and located below the connecting hole 21, the top surface of the rotating block 5 is in contact with the inner top wall of the upper support 2, and the contact position of the rotating block 5 and the upper support 2 rotates, the friction between the nut 4 and the rotating block 5 is greater than the friction between the rotating block 5 and the upper support 2, the folding and rotating force first overcomes the friction between the rotating block 5 and the upper support 2, the rotating block 5 rotates relative to the upper support 2, the rotating block 5 does not move relative to the nut 4, the nut 4 also rotates synchronously and does not move relative to the fixing bolt 3 and does not have a relative force, which avoids the risk of loosening of the connection between the nut 4 and the fixing bolt 3, ensures stable axial compression force of the connection structure, provides stable compression force between the support rod arm 1 and the upper support 2, improves the reliability of the connection structure, and improves the risk of loosening. The traditional rearview mirror support and support rod arm are connected by a spring, in order to ensure the spring force, the axial size of the spring is large, which leads to a large space required for the connection structure, and the spring has the risk of spring force decay, and when the rebound force decays, the connection between the support and the support rod arm is loose.

[0038] In combination with the first aspect, in an embodiment, as shown in FIG. 2, the connecting hole 21 is in the shape of a truncated cone, and the inner diameter of the connecting hole 21 gradually decreases in the direction from the other end of the fixing bolt 3 to the end of the fixing bolt 3; one end of the support arm 1 extends a truncated cone extension one 13, which is arranged in the connecting hole 21 and in contact with the inner side wall of the connecting hole 21.

[0039] For example, with reference to FIG. 2, the connecting hole 21 is in the shape of a truncated cone, the inner diameter of the connecting hole 21 gradually decreases, and the top end of the support arm 1 extends downwardly a truncated cone extension one 13, which gradually decreases in diameter from top to bottom. When the truncated cone extension one 13 is moved into the connecting hole 21, the preliminary positioning work of the support arm 1 and the upper support 2 is completed, which facilitates the subsequent installation work of the fixing bolt 3 and the rotating block 5. Among them, the truncated cone shape design of the connecting hole 21 and the truncated cone extension one 13 is mainly considered from the stability and functionality. Stability: The design of the truncated cone shape helps to improve the stability of the object. Because the bottom area is larger and gradually decreases upwards, this design makes the object less likely to fall when rotating, increasing the overall stability. Functionality: The truncated cone shape can more effectively transmit power and motion when rotating. The gradual design helps to reduce the resistance when rotating, so that the object can move more smoothly. In summary, the design of the truncated cone shape when the support arm 1 and the upper support 2 rotate is mainly to improve the overall stability and functionality, to ensure that the object can remain stable and move smoothly during rotation.

[0040] In combination with the first aspect, in an embodiment, as shown in FIG. 2, the connecting hole 21 is in the shape of a truncated cone, and the inner diameter of the connecting hole 21 gradually decreases in the direction from the other end of the fixing bolt 3 to the end of the fixing bolt 3; one end of the support arm 1 extends a truncated cone extension one 13, which is arranged in the connecting hole 21 and in contact with the inner side wall of the connecting hole 21.

[0041] Exemplarily, the top end bottom surface of the strut arm 1 is initially provided with a circular truncated cone groove 14, the inner diameter of the circular truncated cone groove 14 gradually increases from top to bottom, and the circular truncated cone extension one 13 extends downward from the inner bottom wall of the circular truncated cone groove 14 to form a circular truncated cone extension two 22 on the top surface of the upper support 2, the diameter of the circular truncated cone extension two 22 gradually increases from top to bottom, and the connecting hole 21 is provided on the top surface of the circular truncated cone extension two 22, that is, the circular truncated cone extension two 22 is assembled in the circular truncated cone groove 14, and the circular truncated cone extension one 13 is assembled in the connecting hole 21 on the circular truncated cone extension two 22. Among them, the circular truncated cone extension two 22 and the circular truncated cone groove 14 can further improve the stability and reliability of the rotation between the upper support 2 and the strut arm 1, and improve the problem of unstable and unreliable rotation of the strut arm 1 relative to the upper support 2 when the vehicle bounces and vibrates.

[0042] In combination with the first aspect, in an embodiment, as shown in FIG. 2, the narrow end of the circular truncated cone extension one 13 and the circular truncated cone extension two 22 is provided with a rounded corner. Exemplarily, the inner and outer edges of the bottom end of the circular truncated cone extension one 13 and the top end of the circular truncated cone extension two 22 are provided with rounded corners, which can improve the problem of the bottom end of the circular truncated cone extension one 13 extruding and wearing the inner side wall of the connecting hole 21 and the top end of the circular truncated cone extension two 22 extruding and wearing the inner side wall of the circular truncated cone groove 14 due to the bumpy driving of the vehicle.

[0043] In combination with the first aspect, in an embodiment, as shown in FIG. 2, the top surface of the rotating block 5 extends a boss extension one 51, and the boss extension one 51 is arranged in the connecting hole 21. Exemplarily, the top surface of the rotating block 5 extends the boss extension one 51, and the boss extension one 51 is arranged in the connecting hole 21, and the boss extension one 51 is arranged between the fixing bolt 3 and the upper support 2, which can effectively improve the problem of the left and right deviation of the strut arm 1 and improve the stability of the rotation of the strut arm 1.

[0044] In combination with the first aspect, in an embodiment, as shown in FIG. 2, the bottom surface of the strut arm 1 is provided with a receiving hole 15, and the receiving hole 15 is coaxially arranged with the connecting hole 21; the top surface of the boss extension one 51 extends a boss extension two 52, and the boss extension two 52 is arranged in the receiving hole 15. Exemplarily, the bottom surface of the strut arm 1 is provided with a receiving hole 15, the top surface of the boss extension one 51 extends a boss extension two 52, and the boss extension two 52 is arranged in the receiving hole 15, which can effectively improve the problem of the left and right deviation of the top end of the strut arm 1.

[0045] With reference to the first aspect, in one implementation, as shown in FIGS. 2 and 3, one end of the fixing bolt 3 is sleeved with a gasket 6, which is located between the rotating block 5 and the nut 4. By increasing the gasket 6, the gasket 6 is directly in contact with the nut 4, which can improve the service life of the rotating block 5.

[0046] Further, after the gasket 6 is added, the friction between the gasket 6 and the nut 4 is greater than the friction between the rotating block 5 and the upper support 2, which prevents relative rotation between the gasket 6 and the nut 4.

[0047] With reference to the first aspect, in one implementation, as shown in FIGS. 2 and 3, the bottom surface of the rotating block 5 extends two clamping blocks 53, and the side wall of the gasket 6 is provided with two notches 61; the two clamping blocks 53 and the two notches 61 are one-to-one corresponding and arranged in the corresponding notches 61. In order to further prevent the relative rotation between the gasket 6 and the rotating block 5, the bottom surface of the rotating block 5 extends two clamping blocks 53, the side wall of the gasket 6 is provided with two notches 61; the two clamping blocks 53 and the two notches 61 are one-to-one corresponding and arranged in the corresponding notches 61.

[0048] With reference to the first aspect, in one implementation, the rearview mirror support and the anti-loose connection structure of the support arm further comprises a lower support 7, which is rotationally connected with the support arm 1.

[0049] For example, the rotational connection between the lower support 7 and the support arm 1 can adopt the traditional connection mode of nut + metal flat gasket + spring + bolt.

[0050] With reference to the first aspect, in one implementation, as shown in FIGS. 1 and 2, the support arm 1 comprises an upper housing 11 and a lower housing 12 fixedly clamped with the upper housing 11, the outer contour of the support arm 1 is substantially U-shaped, and the rearview mirror body 8 is installed at the middle position of the upper housing 11 and the lower housing 12.

[0051] In summary, as shown in FIG. 1, FIG. 2 and FIG. 3, the fixed bolt 3 is embedded in the support arm 1. When the support arm 1 needs to be folded and rotated relative to the upper support 2 or the support arm 1 is folded and rotated relative to the upper support 2 due to vibration during driving, the fixed bolt 3 rotates synchronously with the support arm 1, and the rotating block 5 also rotates synchronously due to the limiting between the rotating block 5 and the upper support 2. The contact area between the rotating block 5 and the upper support 2 is relatively small, forming a friction pair A, and the contact area between the rotating block 5 and the gasket 6 is relatively large (for example, the contact area between the rotating block 5 and the gasket 6 is twice the contact area between the rotating block 5 and the upper support 2), forming a friction pair B. The friction coefficients of the two friction pairs are basically the same. When the same pressing axial force is applied to the two friction pair planes by tightening the nut 4 and the fixed bolt 3, the friction force of the friction pair B is twice that of the friction pair A. When the support arm 1 is folded and rotated relative to the upper support 2, the folding and rotating force first overcomes the friction force of the friction pair A, the rotating block 5 rotates relative to the upper support 2, the rotating block 5 does not move relative to the gasket 6 (for example, the material of the gasket 6 can be metal), the gasket 6 rotates synchronously with the nut 4, and the fixed bolt 3 does not move relative to the nut 4 and does not have a relative force, avoiding the risk of loosening of the connection between the nut 4 and the fixed bolt 3, ensuring that the axial pressing force of the connection structure remains stable, the support arm 1 and the upper support 2 have stable pressing force, and the stable friction force of the two parts is also ensured, improving the reliability of the connection structure and avoiding loosening. At the same time, in order to ensure that the rotating block 5 and the gasket 6 do not move relative to each other, in addition to the larger plane friction force, a clamping block 53 can also be added to limit the gasket 6.

[0052] In a second aspect, as shown in FIG. 1, FIG. 2 and FIG. 3, the application provides a vehicle, which includes a rearview mirror support and support arm anti-loose connection structure. The rearview mirror support and support arm anti-loose connection structure includes: an upper support 2, which is provided with a connecting hole 21; a support arm 1, one end of which is arranged on the top surface of the upper support 2, and the support arm 1 is threadedly connected with a fixed bolt 3, one end of the fixed bolt 3 is coaxially arranged in the connecting hole 21; a rotating block 5, which is sleeved on the outer wall of the fixed bolt 3 and located below the connecting hole 21, and the top surface of the rotating block 5 is in contact with the inner top wall of the upper support 2; and a nut 4, which is threadedly connected with one end of the fixed bolt 3 penetrating out of the connecting hole 21 and in contact with the bottom surface of the rotating block 5, and the friction force between the nut 4 and the rotating block 5 is greater than the friction force between the rotating block 5 and the upper support 2.

[0053] For example, referring to FIG. 2, the top surface of the upper support 2 is provided with a connecting hole 21, the top end of the support arm 1 is arranged on the top surface of the upper support 2, the inside of the support arm 1 is embedded with a fixed bolt 3 which is threadedly connected, the fixed bolt 3 is coaxially arranged with the connecting hole 21 and penetrates the connecting hole 21, a rotating block 5 is fixed to the outer wall of the fixed bolt 3 and is located below the connecting hole 21, the rotating block 5 is in contact with the inner top wall of the upper support 2, and a nut 4 is threadedly connected to the bottom end of the fixed bolt 3 and is in contact with the bottom surface of the rotating block 5. The friction between the nut 4 and the rotating block 5 is greater than the friction between the rotating block 5 and the upper support 2.

[0054] Specifically, when the support arm 1 needs to be folded and rotated relative to the upper support 2 or the support arm 1 is folded and rotated relative to the upper support 2 due to vibration during driving, the fixed bolt 3 rotates synchronously with the support arm 1, the rotating block 5 is sleeved and fixed to the outer wall of the fixed bolt 3 and is located below the connecting hole 21, the top surface of the rotating block 5 is in contact with the inner top wall of the upper support 2, and the contact position between the rotating block 5 and the upper support 2 rotates, the friction between the nut 4 and the rotating block 5 is greater than the friction between the rotating block 5 and the upper support 2, the folding and rotating force first overcomes the friction between the rotating block 5 and the upper support 2, the rotating block 5 rotates relative to the upper support 2, the rotating block 5 does not move relative to the nut 4, the nut 4 also rotates synchronously and does not move relative to the fixed bolt 3 and does not have a relative force, which avoids the risk of loosening of the connection between the nut 4 and the fixed bolt 3, ensures that the axial compression force of the connection structure remains stable, the support arm 1 has stable compression force relative to the upper support 2, improves the reliability of the connection structure, and improves the risk of loosening. The traditional rearview mirror upper support and the support arm are connected by a spring, in order to ensure the spring force, the axial size of the spring is large, which leads to a large space required by the connection structure, and the spring has the risk of elastic force decay, and after the elastic force decays, the connection between the support and the support arm is loose.

[0055] In combination with the second aspect, in an embodiment, as shown in FIG. 2, the connecting hole 21 is in the shape of a circular truncated cone, the inner diameter of the connecting hole 21 gradually decreases in the direction from the other end of the fixed bolt 3 to the end of the fixed bolt 3, and the one end of the support arm 1 extends a circular truncated cone extension 13 which is arranged in the connecting hole 21 and is in contact with the inner side wall of the connecting hole 21.

[0056] For example, referring to FIG. 2, the connecting hole 21 is in the shape of a circular truncated cone, the inner diameter of the connecting hole 21 gradually decreases, the top end of the support arm 1 extends downward with a circular truncated cone extension 13, and the diameter of the circular truncated cone extension 13 gradually decreases from top to bottom. When the circular truncated cone extension 13 is moved into the connecting hole 21, the preliminary positioning of the support arm 1 and the upper support 2 is completed, and the installation of the fixing bolt 3 and the rotating block 5 is facilitated. The design of the connecting hole 21 and the circular truncated cone extension 13 in the shape of a circular truncated cone is mainly for stability and functionality. Stability: The design of the circular truncated cone helps to improve the stability of the object. Because the bottom area is larger and gradually decreases upwards, this design makes the object less likely to tip over when rotating, increasing the overall stability. Functionality: The circular truncated cone shape can more effectively transfer power and motion during rotation. The gradual design helps to reduce resistance during rotation, allowing the object to rotate smoothly. In summary, the design of the support arm 1 and the upper support 2 in the shape of a circular truncated cone during rotation is mainly to improve the overall stability and functionality, ensuring that the object can maintain stability and move smoothly during rotation.

[0057] In combination with the second aspect, in an embodiment, as shown in FIG. 2, a circular truncated cone groove 14 is provided at one end of the support arm 1, the inner diameter of the circular truncated cone groove 14 gradually increases in the direction from the other end of the fixing bolt 3 to the end of the fixing bolt 3, and the circular truncated cone extension 13 is coaxially arranged on the inner bottom wall of the circular truncated cone groove 14. The top surface of the upper support 2 extends with a circular truncated cone extension 22, the diameter of the circular truncated cone extension 22 gradually increases in the direction from the other end of the fixing bolt 3 to the end of the fixing bolt 3, the connecting hole 21 is coaxially provided on the top of the circular truncated cone extension 22, and the circular truncated cone extension 22 is coaxially arranged in the circular truncated cone groove 14.

[0058] For example, the top end of the support arm 1 is provided with a circular truncated cone groove 14, the inner diameter of the circular truncated cone groove 14 gradually increases from top to bottom, and the circular truncated cone extension 13 is formed by extending downward from the inner bottom wall of the circular truncated cone groove 14. The top surface of the upper support 2 forms a circular truncated cone extension 22, the diameter of the circular truncated cone extension 22 gradually increases from top to bottom, and the connecting hole 21 is provided on the top surface of the circular truncated cone extension 22, i.e., the circular truncated cone extension 22 is fitted in the circular truncated cone groove 14, and the circular truncated cone extension 13 is fitted in the connecting hole 21 on the circular truncated cone extension 22. The increased circular truncated cone extension 22 and circular truncated cone groove 14 can further improve the stability and reliability of the rotation between the upper support 2 and the support arm 1, and improve the problem of rotation jamming and instability caused by the folding and rotation of the support arm 1 relative to the upper support 2 due to vibration during vehicle driving.

[0059] In combination with the second aspect, in an embodiment, as shown in FIG. 2, the narrow end of the circular truncated cone extension one 13 and the circular truncated cone extension two 22 are both provided with a rounded corner. For example, the inner and outer edges of the bottom end of the circular truncated cone extension one 13 and the top end of the circular truncated cone extension two 22 are both provided with a rounded corner, which can improve the wear of the inner side wall of the connecting hole 21 caused by the bottom end of the circular truncated cone extension one 13 and the inner side wall of the circular truncated cone groove 14 caused by the top end of the circular truncated cone extension two 22.

[0060] In combination with the second aspect, in an embodiment, as shown in FIG. 2, the top surface of the rotating block 5 extends a boss extension one 51, which is arranged in the connecting hole 21. For example, the top surface of the rotating block 5 extends the boss extension one 51, which is arranged in the connecting hole 21, and the boss extension one 51 is arranged between the fixing bolt 3 and the upper support 2, which can effectively improve the problem of left and right deviation of the support arm 1 and improve the stability of the rotation of the support arm 1.

[0061] In combination with the second aspect, in an embodiment, as shown in FIG. 2, the bottom surface of the support arm 1 is provided with a receiving hole 15, which is coaxially arranged with the connecting hole 21; the top surface of the boss extension one 51 extends a boss extension two 52, which is arranged in the receiving hole 15. For example, the bottom surface of the support arm 1 is provided with the receiving hole 15, the top surface of the boss extension one 51 extends the boss extension two 52, and the boss extension two 52 is arranged in the receiving hole 15, which can effectively improve the problem of left and right deviation of the top end of the support arm 1.

[0062] In combination with the second aspect, in an embodiment, as shown in FIG. 2 and FIG. 3, the outer wall of one end of the fixing bolt 3 is provided with a gasket 6, which is located between the rotating block 5 and the nut 4. For example, the increased gasket 6 directly contacts and presses the nut 4, which can improve the service life of the rotating block 5.

[0063] Further, after the gasket 6 is added, the friction between the gasket 6 and the nut 4 is greater than the friction between the rotating block 5 and the upper support 2, which prevents the relative rotation between the gasket 6 and the nut 4.

[0064] In combination with the second aspect, in an embodiment, as shown in FIG. 2 and FIG. 3, the bottom surface of the rotating block 5 extends two clamping blocks 53, and the sidewall of the gasket 6 is provided with two notches 61; the two clamping blocks 53 correspond to the two notches 61 one by one and are arranged in the corresponding notches 61. For example, in order to further prevent the relative rotation between the gasket 6 and the rotating block 5, the bottom surface of the rotating block 5 extends two clamping blocks 53, and the sidewall of the gasket 6 is provided with two notches 61; the two clamping blocks 53 correspond to the two notches 61 one by one and are arranged in the corresponding notches 61.

[0065] In combination with the second aspect, in an embodiment, the rearview mirror support and the anti-loose connecting structure of the support arm further comprises a lower support 7, which is rotationally connected with the support arm 1.

[0066] For example, the rotational connection between the lower support 7 and the support arm 1 can adopt the traditional connection mode of nut + metal flat pad + spring + bolt.

[0067] In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connecting", and "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected internally between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0068] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0069] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A rearview mirror support and post arm anti-looseness connecting structure, characterized in that, It includes: The upper support (2) is provided with a connecting hole (21); The support arm (1) is provided at one end of the upper support (2) top surface, and the support arm (1) is threadedly connected with a fixing bolt (3), one end of the fixing bolt (3) is coaxially arranged in the connecting hole (21); The rotating block (5) is sleeved on the outer wall of the fixing bolt (3), and is located below the connecting hole (21), and the top surface of the rotating block (5) is in contact with the inner top wall of the upper support (2); The nut (4) is threadedly connected with the fixing bolt (3) penetrating the connecting hole (21) outside one end, and is in contact with the bottom surface of the rotating block (5), the friction between the nut (4) and the rotating block (5) is greater than the friction between the rotating block (5) and the upper support (2).

2. The rearview mirror support and support arm anti-loose connection structure of claim 1, wherein The connecting hole (21) is provided in the form of a circular truncated cone, and the inner diameter of the connecting hole (21) gradually decreases along the direction from the other end of the fixing bolt (3) to the one end of the fixing bolt (3); One end of the support arm (1) extends a circular truncated cone extension one (13), which is arranged in the connecting hole (21) and in contact with the inner side wall of the connecting hole (21).

3. The rearview mirror support and support arm anti-loose connection structure of claim 2, wherein One end of the support arm (1) is provided with a circular truncated cone groove (14), and the inner diameter of the circular truncated cone groove (14) gradually increases along the direction from the other end of the fixing bolt (3) to the one end of the fixing bolt (3), and the circular truncated cone extension one (13) is coaxially arranged in the inner bottom wall of the circular truncated cone groove (14); The top surface of the upper support (2) extends a circular truncated cone extension two (22), and the diameter of the circular truncated cone extension two (22) gradually increases along the direction from the other end of the fixing bolt (3) to the one end of the fixing bolt (3), and the connecting hole (21) is coaxially arranged in the top of the circular truncated cone extension two (22), and the circular truncated cone extension two (22) is coaxially arranged in the circular truncated cone groove (14).

4. The rearview mirror support and support arm anti-loose connection structure of claim 3, wherein The narrow end of the circular truncated cone extension one (13) and the circular truncated cone extension two (22) is provided in the form of a rounded corner.

5. The rearview mirror support and support arm anti-loose connection structure of claim 1, wherein The top surface of the rotating block (5) extends a boss extension one (51), which is arranged in the connecting hole (21).

6. The rearview mirror support and support arm anti-loose connection structure of claim 5, wherein The bottom surface of the support arm (1) is provided with a receiving hole (15), which is coaxially arranged with the connecting hole (21). The top surface of the boss extension one (51) extends a boss extension two (52), which is arranged in the accommodating hole (15).

7. The rearview mirror support and support rod arm anti-loose connection structure of claim 1, wherein, One end of the fixed bolt (3) is sleeved with a gasket (6), which is located between the rotating block (5) and the nut (4).

8. The rearview mirror support and support rod arm anti-loose connection structure of claim 7, wherein, The bottom surface of the rotating block (5) extends two clamping blocks (53), and the side wall of the gasket (6) is provided with two notches (61); Two clamping blocks (53) and two notches (61) correspond one-to-one and are arranged in the corresponding notches (61).

9. The rearview mirror support and support rod arm anti-loose connection structure of claim 1, wherein, The rearview mirror support and support rod arm anti-loose connection structure further comprises: A lower support (7) is rotatably connected with the support rod arm (1).

10. A vehicle characterized by comprising: The rearview mirror support and support rod arm anti-loose connection structure comprises the rearview mirror support and support rod arm anti-loose connection structure of any one of claims 1-9.

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