A vibration-resistant rearview mirror angle positioning device for a special vehicle cab

Abstract

The present invention provides a rearview mirror angle positioning device for a vibration-resistant special vehicle cab, comprising a mounting base, a vibration-damping connecting plate, a connecting frame, a first adjustment frame, a vibration-damping seat, and a second adjustment frame. The mounting base is fixed to the outside of the vibration-damping connecting plate, a connecting frame is mounted on the vibration-damping connecting plate, a first vibration-damping mechanism and a second vibration-damping mechanism are arranged inside the vibration-damping connecting plate, the first adjustment frame is movably connected to the inside of the connecting frame, a vibration-damping seat is movably connected to the inside of the first adjustment frame, a second adjustment frame is movably connected to the inside of the vibration-damping seat, and a rearview mirror body is mounted inside the second adjustment frame. The present invention installs a connecting frame on the inside of the vibration-damping connecting plate, installs the first vibration-damping mechanism in the top surface space of the middle plate in the vertical groove of the vibration-damping connecting plate, and installs the second vibration-damping mechanism connecting frame in the bottom surface space of the middle plate in the vertical groove. When vibrating, the connecting rod of the connecting frame can complete the vibration-damping operation under the action of the connecting spring, thereby improving the vibration resistance of the rearview mirror.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle rearview mirrors, and in particular relates to a rearview mirror angle positioning device for a vibration-resistant special vehicle cab. Background Art

[0002] The rearview mirrors in the vehicle cab are divided into the inner rearview mirror, the outer rearview mirror and the lower mirror. The inner rearview mirror is located in the middle of the front windshield of the vehicle, allowing the driver to observe the situation behind the vehicle; the outer rearview mirror is generally installed on the car door or the vehicle fender. The outer rearview mirror is mainly used to allow the driver to observe the pedestrians, vehicles and other obstacles on the left and right sides of the car to ensure driving or reversing safety. It can also be called a reversing mirror. It can observe the road conditions behind the car during the reversing process, and the driver can observe the situation around the car during the driving process. It can be retracted when passing through narrow sections to improve the car's passability; the lower mirror allows the driver to see the place other than the front and rear wheels under the car body in the mirror directly in front of the driver's seat. When reversing and starting to move forward, you can see whether there are people or obstacles beside the front and rear wheels and the car body to avoid hurting people, objects and damaging the vehicle, giving the driver convenience and safety.

[0003] The vehicle's exterior rearview mirrors and lower mirrors are usually installed on the outside of the vehicle. Due to the poor road conditions on which special vehicles travel, the vehicle body is subject to large bumps and vibrations when passing. The existing rearview mirrors are usually fixed to the vehicle body, which can easily cause damage to the rearview mirrors when subjected to large vibrations, affecting the service life of the rearview mirrors.

[0004] Based on this, a rearview mirror angle positioning device for a vibration-resistant special vehicle cab is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a vibration-resistant rearview mirror angle positioning device for a cab of a special vehicle in view of the deficiencies of the above-mentioned prior art, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a rearview mirror angle positioning device for a vibration-resistant special vehicle cab, comprising a mounting base, a vibration-damping connecting plate, a connecting frame, a first adjustment frame, a vibration-damping seat and a second adjustment frame;

[0007] The mounting base is fixed on the outer side of the vibration-damping connecting plate, a connecting frame is installed on the inner side of the vibration-damping connecting plate, a first vibration-damping mechanism and a second vibration-damping mechanism are arranged on the inner side of the vibration-damping connecting plate, and the connecting frame is movably connected to the vibration-damping connecting plate through the first vibration-damping mechanism and the second vibration-damping mechanism;

[0008] The first adjustment frame is movably connected to the inner side of the connection frame, a vibration-damping seat is movably connected to the inner side of the first adjustment frame, and vibration-damping seats are respectively installed at the top and bottom ends of the vibration-damping seat, and the connection between the vibration-damping seat and the first adjustment frame is completed through the vibration-damping seats;

[0009] The inner side of the vibration-damping seat is movably connected with a second adjustment frame, and a rearview mirror body is installed in the second adjustment frame.

[0010] As a further explanation of the present invention, two vertical grooves are provided in the vibration-damping connecting plate, an intermediate plate is fixed in the middle of the vertical groove, a first vibration-damping mechanism is installed in the space on the top surface of the intermediate plate in the vertical groove, and a second vibration-damping mechanism is installed in the space on the bottom surface of the intermediate plate in the vertical groove;

[0011] The first vibration damping mechanism includes a first connecting spring, a connecting seat and a second connecting spring. The top end of the first connecting spring is fixed at the top end of the vertical groove. The top end of the connecting seat is installed at the bottom end of the first connecting spring. The bottom end of the connecting seat is installed with a second connecting spring. The bottom end of the second connecting spring is fixed at the bottom end of the vertical groove. The second vibration damping mechanism has the same structure as the first vibration damping mechanism.

[0012] As a further illustration of the present invention, four connecting rods are fixed to the outside of the connecting frame, and the connecting rods are respectively fixed to the connecting seats of the first vibration damping mechanism and the second vibration damping mechanism.

[0013] As a further illustration of the present invention, electromagnets are installed at the top and bottom of the vertical grooves inside the vibration-damping connecting plate, and iron blocks used in conjunction with the electromagnets are provided at the top and bottom of the outer side of the connecting frame.

[0014] As a further explanation of the present invention, a first adjusting rod is vertically fixed at the inner center of the connecting frame, and the other end of the first adjusting rod is movably connected to the outer side of the first adjusting frame through a universal ball seat. A first adjusting cylinder is also movably installed on the inner side of the connecting frame on the same horizontal line as the first adjusting rod, and the telescopic shaft of the first adjusting cylinder is rotatably connected to the outer side of the first adjusting frame.

[0015] As a further explanation of the present invention, two vibration damping frames are respectively installed at the top and bottom ends of the vibration damping seat, and the vibration damping frames include vibration damping springs and vibration damping rods. The vibration damping rods are fixed to the outside of the vibration damping seat, and the vibration damping rods are sleeved on the outer frame of the first adjustment frame. The vibration damping rods are sleeved with vibration damping springs on the outer side of the portion between the vibration damping seat and the first adjustment frame.

[0016] As a further explanation of the present invention, a second adjusting rod is vertically fixed at the inner center of the vibration damping seat, and the other end of the second adjusting rod is movably connected to the outer side of the second adjusting frame through a universal ball seat. A second adjusting cylinder is also movably installed on the inner side of the vibration damping seat on the same vertical line as the second adjusting rod, and the telescopic shaft of the second adjusting cylinder is rotatably connected to the outer side of the second adjusting frame.

[0017] As a further explanation of the present invention, a clamping ring is arranged on the inner side of the second adjustment frame, the rearview mirror body is clamped in the second adjustment frame through the clamping ring, and the rearview mirror body and the second adjustment frame are arranged parallel to each other.

[0018] As a further explanation of the present invention, a cover shell is fixed to the outside of the connecting frame, the first adjustment frame, the vibration damping seat and the second adjustment frame are arranged in the cover shell, and a flexible rubber connecting ring is also pasted in the cover shell, and the inner ring of the rubber connecting ring is pasted and fixed to the outer edge of the second adjusting frame.

[0019] As a further illustration of the present invention, a first flexible dust cover is provided between the outer side of the vibration-damping connecting plate and the cover shell, and a second flexible dust cover is provided between the outer side of the first adjusting frame and the second adjusting frame.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. The present invention is characterized in that a connecting frame is installed on the inner side of a vibration-damping connecting plate, two vertical grooves are provided in the vibration-damping connecting plate, an intermediate plate is fixed in the middle of the vertical groove, a first vibration-damping mechanism is installed in the top surface space of the intermediate plate in the vertical groove, and a second vibration-damping mechanism connecting frame is installed in the bottom surface space of the intermediate plate in the vertical groove, the first vibration-damping mechanism and the second vibration-damping mechanism have the same structure, including a first connecting spring, a connecting seat and a second connecting spring, the top end of the first connecting spring is fixed at the top end in the vertical groove, the top end of the connecting seat is installed at the bottom end of the first connecting spring, the bottom end of the connecting seat is installed at the bottom end of the second connecting spring, and the bottom end of the second connecting spring is fixed at the bottom end in the vertical groove, a gap is provided between the first connecting spring and the second connecting spring and the inner wall of the vertical groove, so as to facilitate the free lifting and lowering adjustment of the first connecting spring and the second connecting spring to complete the vibration-damping operation, and when subjected to vibration, the connecting rod of the connecting frame can complete the vibration-damping operation under the action of 8 connecting springs, thereby improving the vibration resistance of the rearview mirror.

[0022] 2. The present invention installs an electromagnet on the inner side of the vibration-damping connecting plate, and respectively provides iron blocks used in conjunction with the electromagnet at the top and bottom ends of the outer side of the connecting frame. When driving on a road with good road conditions and less bumps, the electromagnet is used to magnetically fix the iron blocks, thereby completing the fixed connection between the connecting frame and the vibration-damping connecting plate, thereby reducing the number of frequent operations of the connecting spring, thereby extending the service life of the entire rearview mirror body.

[0023] 3. The present invention comprises a first adjustment frame movably connected to the inner side of the connection frame, a vibration-damping seat movably connected inside the first adjustment frame, the top and bottom ends of the vibration-damping seat are respectively installed with the vibration-damping frame, the vibration-damping frame comprises a vibration-damping spring and a vibration-damping rod, the vibration-damping rod is fixed to the outer side of the vibration-damping seat, and the vibration-damping rod is sleeved on the outer frame of the first adjustment frame, a vibration-damping spring is sleeved on the outer side of the vibration-damping rod between the vibration-damping seat and the first adjustment frame, the elastic coefficient of the vibration-damping spring is greater than the elastic coefficient of the connection spring, when the connection frame is fixedly connected to the vibration-damping connection plate, the vibration-damping operation of the rearview mirror can be performed through the vibration-damping frame, when the connection frame and the vibration-damping connection plate are in vibration-damping operation, since the elastic coefficient of the vibration-damping spring is greater than the elastic coefficient of the connection spring, when the vibration is small, the vibration-damping operation can be completed only by using the connection spring, thereby avoiding the phenomenon of large shaking of the rearview mirror body during use, and improving the stability of the rearview mirror body.

[0024] 4. The present invention further provides a limiting seat on the inner side of the first adjustment frame, and a limiting groove on the outer side of the vibration-damping seat. The limiting seat is slidably connected in the limiting groove. When the vibration-damping frame moves up and down to resist vibration, the limiting seat and the limiting groove can avoid the first adjustment frame and the vibration-damping seat from offsetting, thereby avoiding the phenomenon of angular polarization of the rearview mirror body during use, which is convenient for improving the stability of the entire rearview mirror during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the inner structure of the vibration-damping connecting plate of the present invention;

[0027] Figure 3 It is a schematic diagram of the connection structure of the vibration damping seat of the present invention.

[0028] Description of reference numerals:

[0029] Installing base 1, vibration-damping connecting plate 2, vertical groove 21, middle plate 22, first vibration-damping mechanism 23, first connecting spring 231, connecting seat 232, second connecting spring 233, second vibration-damping mechanism 24, electromagnet 25, first flexible dust cover 26, connecting frame 3, connecting rod 31, iron block 32, first adjusting rod 33, first adjusting cylinder 34, first adjusting frame 4, second flexible dust cover 41, limiting seat 42, vibration-damping seat 5, second adjusting rod 51, second adjusting cylinder 52, vibration-damping frame 53, vibration-damping spring 531, vibration-damping rod 532, limiting groove 54, second adjusting frame 6, rearview mirror body 7. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figure 1-3 As shown, the present invention provides a technical solution: a rearview mirror angle positioning device for a vibration-resistant special vehicle cab, comprising a mounting base 1, a vibration-damping connecting plate 2, a connecting frame 3, a first adjustment frame 4, a vibration-damping seat 5, and a second adjustment frame 6;

[0032] The mounting base 1 is fixed to the outer side of the vibration-damping connecting plate 2 . A mounting plate 11 and a mounting rod 12 are provided on the mounting base 1 . The mounting base 1 is mounted on the body of the special vehicle through the mounting plate 11 or the mounting rod 12 .

[0033] A connecting frame 3 is installed on the inner side of the vibration-damping connecting plate 2, and a first vibration-damping mechanism 23 and a second vibration-damping mechanism 24 are arranged on the inner side of the vibration-damping connecting plate 2. The connecting frame 3 is movably connected to the vibration-damping connecting plate 2 through the first vibration-damping mechanism 23 and the second vibration-damping mechanism 24.

[0034] Specifically, the vibration-damping connecting plate 2 is provided with two vertical grooves 21, an intermediate plate 22 is fixed in the middle of the vertical groove 21, a first vibration-damping mechanism 23 is installed in the top surface space of the intermediate plate 22 in the vertical groove 21, and a second vibration-damping mechanism 24 is installed in the bottom surface space of the intermediate plate 22 in the vertical groove 21;

[0035] The first vibration damping mechanism 23 includes a first connecting spring 231, a connecting seat 232 and a second connecting spring 233. The top end of the first connecting spring 231 is fixed at the top end of the vertical groove 21, the top end of the connecting seat 232 is installed at the bottom end of the first connecting spring 231, the bottom end of the connecting seat 232 is installed with a second connecting spring 233, and the bottom end of the second connecting spring 233 is fixed at the bottom end of the vertical groove 21. A gap of 2 mm is set between the first connecting spring 231, the second connecting spring 233 and the inner wall of the vertical groove 21, so as to facilitate the free lifting and lowering adjustment of the first connecting spring 231 and the second connecting spring 233 to complete the vibration reduction operation, thereby improving the vibration resistance of the rearview mirror.

[0036] The second vibration damping mechanism 24 has the same structure as the first vibration damping mechanism 23. Four connecting rods 31 are fixed to the outside of the connecting frame 3. The connecting rods 31 are respectively fixed to the connecting seats 232 of the first vibration damping mechanism 23 and the second vibration damping mechanism 24. When subjected to vibration, the connecting rods 31 of the connecting frame 3 can achieve vibration damping performance under the action of 8 connecting springs.

[0037] Electromagnets 25 are installed at the top and bottom of the vertical groove 21 on the inner side of the vibration-damping connecting plate 2, and iron blocks 32 used in conjunction with the electromagnets 25 are provided at the top and bottom of the outer side of the connecting frame 3. When driving on a road with good road conditions and less bumps, the electromagnets 25 are used to magnetically fix the iron blocks 32, thereby completing the fixed connection between the connecting frame 3 and the vibration-damping connecting plate 2, thereby reducing the frequent operation times of the connecting spring, thereby extending the service life of the entire rearview mirror body.

[0038] The first adjustment frame 4 is movably connected to the inner side of the connecting frame 3, and a first adjustment rod 33 is vertically fixed at the inner center of the connecting frame 3. The other end of the first adjustment rod 33 is movably connected to the outer side of the first adjustment frame 4 through a universal ball seat. A first adjustment cylinder 34 is also movably installed on the inner side of the connecting frame 3 and on the same horizontal line as the first adjustment rod 33. The telescopic shaft of the first adjustment cylinder 34 is rotatably connected to the outer side of the first adjustment frame 4. During use, the lateral deflection angle of the rear-view mirror body 7 can be adjusted by telescoping the first adjustment cylinder 34.

[0039] A vibration damping seat 5 is movably connected inside the first adjustment frame 4, and vibration damping frames 53 are respectively installed at the top and bottom of the vibration damping seat 5, and the connection between the vibration damping seat 5 and the first adjustment frame 4 is completed through the vibration damping frame 53;

[0040] Specifically, two vibration-damping frames 53 are respectively installed at the top and bottom ends of the vibration-damping seat 5, and the vibration-damping frame 53 includes a vibration-damping spring 531 and a vibration-damping rod 532. The vibration-damping rod 532 is fixed to the outer side of the vibration-damping seat 5, and the vibration-damping rod 532 is sleeved on the outer frame of the first adjustment frame 4. The vibration-damping rod 532 is sleeved with a vibration-damping spring 531 on the outer side of the part between the vibration-damping seat 5 and the first adjustment frame 4. The elastic coefficient of the vibration-damping spring 531 is greater than the elastic coefficient of the connecting spring. When the connecting frame 3 is fixedly connected to the vibration-damping connecting plate 2, the vibration-damping frame 53 can be used to reduce the vibration of the rearview mirror. When the connecting frame 3 and the vibration-damping connecting plate 2 are in vibration-damping operation, since the elastic coefficient of the vibration-damping spring 531 is greater than the elastic coefficient of the connecting spring, when the vibration is small, the vibration-damping operation can be completed only by using the connecting spring, thereby avoiding the phenomenon of large shaking of the rearview mirror body 7 during use, and improving the stability of the rearview mirror body 7.

[0041] A limiting seat 42 is further provided on the inner side of the first adjustment frame 4, and a limiting groove 54 is provided on the outer side of the vibration damping seat 5. The limiting seat 42 is slidably connected in the limiting groove 54. When the vibration damping frame 53 moves up and down to resist vibration, the limiting seat 42 and the limiting groove 54 can prevent the first adjustment frame 4 and the vibration damping seat 5 from offsetting, thereby preventing the rearview mirror body 7 from being polarized at an angle during use, thereby facilitating improving the stability of the entire rearview mirror during use.

[0042] The inner side of the vibration-damping seat 5 is movably connected to a second adjustment frame 6, a second adjustment rod 51 is vertically fixed at the inner center of the vibration-damping seat 5, the other end of the second adjustment rod 51 is movably connected to the outer side of the second adjustment frame 6 through a universal ball seat, and a second adjustment cylinder 52 is movably installed on the inner side of the vibration-damping seat 5 on the same vertical line as the second adjustment rod 51, the telescopic shaft of the second adjustment cylinder 52 is rotatably connected to the outer side of the second adjustment frame 6, and the longitudinal deflection angle of the rear-view mirror body 7 can be adjusted by telescoping the second adjustment cylinder 52 during use.

[0043] A rearview mirror body 7 is installed in the second adjustment frame 6. Specifically, a clamping ring is provided on the inner side of the second adjustment frame 6. The rearview mirror body 7 is clamped in the second adjustment frame 6 through the clamping ring, and the rearview mirror body 7 and the second adjustment frame 6 are arranged parallel to each other, so as to facilitate the adjustment of the lateral and longitudinal deflection angles of the rearview mirror body 7.

[0044] In order to improve the sealing performance of the rearview mirror body during use and prevent dust from entering the first adjustment frame 4, the vibration damping seat 5 and the second adjustment frame 6, a cover shell 35 is fixed to the outside of the connecting frame 3, and the first adjustment frame 4, the vibration damping seat 5 and the second adjustment frame 6 are arranged in the cover shell 35. A flexible rubber connecting ring 36 is also pasted in the cover shell 35, and the inner ring of the rubber connecting ring 36 is pasted and fixed to the outer edge of the second adjustment frame 6.

[0045] A first flexible dust cover 26 is arranged between the outer side of the vibration-damping connecting plate 2 and the cover shell 35, and a second flexible dust cover 41 is arranged between the outer side of the first adjustment frame 4 and the second adjustment frame 6. The first flexible dust cover 26 and the second flexible dust cover 41 can further improve the dustproof performance of the equipment.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibration-resistant special vehicle cab rearview mirror angle positioning device, characterized in that: It comprises a mounting base (1), a vibration-damping connecting plate (2), a connecting frame (3), a first adjusting frame (4), a vibration-damping seat (5) and a second adjusting frame (6); The mounting base (1) is fixed to the outside of the vibration-damping connecting plate (2); a connecting frame (3) is installed on the inside of the vibration-damping connecting plate (2); a first vibration-damping mechanism (23) and a second vibration-damping mechanism (24) are arranged on the inside of the vibration-damping connecting plate (2); the connecting frame (3) is movably connected to the vibration-damping connecting plate (2) via the first vibration-damping mechanism (23) and the second vibration-damping mechanism (24); Two vertical grooves (21) are provided in the vibration-damping connecting plate (2), an intermediate plate (22) is fixed in the middle of the vertical groove (21), a first vibration-damping mechanism (23) is installed in the top surface space of the intermediate plate (22) in the vertical groove (21), and a second vibration-damping mechanism (24) is installed in the bottom surface space of the intermediate plate (22) in the vertical groove (21); The first vibration reduction mechanism (23) comprises a first connecting spring (231), a connecting seat (232) and a second connecting spring (233); the top end of the first connecting spring (231) is fixed at the top end of the vertical groove (21); the top end of the connecting seat (232) is mounted on the bottom end of the first connecting spring (231); the bottom end of the connecting seat (232) is mounted with the second connecting spring (233); the bottom end of the second connecting spring (233) is fixed at the bottom end of the vertical groove (21); The vibration damping mechanism (24) has the same structure as the first vibration damping mechanism (23); four connecting rods (31) are fixed on the outside of the connection frame (3); the connecting rods (31) are respectively fixed on the connection seats (232) of the first vibration damping mechanism (23) and the second vibration damping mechanism (24); electromagnets (25) are respectively installed at the top and bottom ends of the vertical grooves (21) on the inside of the vibration damping connection plate (2); and iron blocks (32) used in conjunction with the electromagnets (25) are respectively arranged at the top and bottom ends of the outside of the connection frame (3); The connecting frame (3) is movably connected to a first adjustment frame (4) on its inner side, a vibration-damping seat (5) is movably connected to the inner side of the first adjustment frame (4), vibration-damping frames (53) are respectively installed at the top and bottom ends of the vibration-damping seat (5), and the connection between the vibration-damping seat (5) and the first adjustment frame (4) is completed through the vibration-damping frame (53); The inner side of the vibration-damping seat (5) is movably connected to a second adjustment frame (6), and a rearview mirror body (7) is installed in the second adjustment frame (6).

2. The rearview mirror angle positioning device for a vibration-resistant special vehicle cab according to claim 1, characterized in that: A first adjustment rod (33) is vertically fixed at the center of the inner side of the connection frame (3); one end of the first adjustment rod (33) is movably connected to the outer side of the first adjustment frame (4) via a universal ball seat; a first adjustment cylinder (34) is also movably mounted on the inner side of the connection frame (3) on the same horizontal line as the first adjustment rod (33); the telescopic shaft of the first adjustment cylinder (34) is rotatably connected to the outer side of the first adjustment frame (4).

3. The rearview mirror angle positioning device for a vibration-resistant special vehicle cab according to claim 1, characterized in that: Two vibration-damping frames (53) are respectively installed at the top and bottom ends of the vibration-damping seat (5), the vibration-damping frames (53) comprising vibration-damping springs (531) and vibration-damping rods (532), the vibration-damping rods (532) being fixed to the outside of the vibration-damping seat (5), and the vibration-damping rods (532) being sleeved on the outer frame of the first adjustment frame (4), and the vibration-damping rods (532) being sleeved on the outer side of a portion of the vibration-damping rods (532) between the vibration-damping seat (5) and the first adjustment frame (4); A limiting seat (42) is also provided on the inner side of the first adjustment frame (4), a limiting groove (54) is provided on the outer side of the vibration damping seat (5), and the limiting seat (42) is slidably connected in the limiting groove (54).

4. The rearview mirror angle positioning device for a vibration-resistant special vehicle cab according to claim 1, characterized in that: A second adjustment rod (51) is vertically fixed at the center of the inner side of the vibration damping seat (5); one end of the second adjustment rod (51) is movably connected to the outer side of the second adjustment frame (6) via a universal ball seat; a second adjustment cylinder (52) is also movably mounted on the inner side of the vibration damping seat (5) on the same vertical line as the second adjustment rod (51); the telescopic shaft of the second adjustment cylinder (52) is rotatably connected to the outer side of the second adjustment frame (6).

5. The rearview mirror angle positioning device for a vibration-resistant special vehicle cab according to claim 1, characterized in that: A clamping ring is provided on the inner side of the second adjustment frame (6), and the rearview mirror body (7) is clamped in the second adjustment frame (6) via the clamping ring, and the rearview mirror body (7) and the second adjustment frame (6) are arranged parallel to each other.

6. The rearview mirror angle positioning device for a vibration-resistant special vehicle cab according to claim 1, characterized in that: A cover shell (35) is fixed to the outside of the connection frame (3); the first adjustment frame (4), the vibration damping seat (5) and the second adjustment frame (6) are arranged in the cover shell (35); a flexible rubber connection ring (36) is also glued to the inside of the cover shell (35); the inner ring of the rubber connection ring (36) is glued and fixed to the outer edge of the second adjustment frame (6).

7. The rearview mirror angle positioning device for a vibration-resistant special vehicle cab according to claim 6, characterized in that: A first flexible dust cover (26) is provided between the outer side of the vibration-damping connecting plate (2) and the cover shell (35), and a second flexible dust cover (41) is provided between the outer side of the first adjustment frame (4) and the second adjustment frame (6).

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