Multifunctional automobile rearview mirror

Abstract

The invention relates to the technical field of rearview mirrors, in particular to a multifunctional automobile rearview mirror which comprises a shell, a mirror body is embedded in the front of the shell, a universal seat is arranged on the back of the shell, the front end of the universal seat is in universal connection with the back of the shell, and a protection mechanism is arranged on the back of the shell. The protection mechanism comprises a supporting pipe fixed to the universal seat, the supporting pipe horizontally extends towards the side portion of the universal seat, the protection mechanism further comprises a triggering block which is installed in the supporting pipe and can slide left and right, a through hole is formed in the extending tail end of the supporting pipe, and the triggering block is arranged in the supporting pipe and can slide left and right. A vertical rotating groove is formed in the back of the supporting pipe, the rotating groove is close to the extending tail end of the supporting pipe, a triggering rod is fixed to the end of the triggering block, the mirror body does not face the human body when rotating downwards, the mirror body does not make contact with the human body when rotating downwards, and the human body cannot be punctured even if the mirror body is broken.

Description

Technical Field

[0001] The invention relates to the technical field of rearview mirrors, in particular to a multifunctional automobile rearview mirror. Background Art

[0002] The car rearview mirror in the cab is located between the driver's side and the co-pilot side, and is fixed on the car's front window through a connection relationship. The car's front window is the front windward side when driving, and is also the front shielding part in the event of a sudden traffic accident. When the front vehicle collides with the front side of itself, the front window is often damaged, and there is a high probability that the rearview mirror will be bumped toward the person on the driver's side or the co-pilot side. If the rearview mirror collides with a human body at this time, it will also cause the lens to shatter. Since the lens faces the human body, it may also cause scratches on the human body when it is broken. Therefore, in the event of the above-mentioned accident, the safety of the rearview mirror in the prior art needs to be improved. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a multifunctional automobile rearview mirror, comprising a shell, a mirror body is inlaid on the front of the shell, a universal seat is provided on the back of the shell, the front end of the universal seat is universally connected to the back of the shell, and a protective mechanism is provided on the back of the shell, the protective mechanism comprises a support tube fixed on the universal seat, the support tube extends horizontally toward the side direction of the universal seat, the protective mechanism also includes a trigger block installed in the support tube and capable of sliding left and right, a through hole is provided at the extended end of the support tube, and a vertical rotation groove is opened on the back of the support tube, and the rotation groove is close to the extended end of the support tube. A trigger rod is fixed to the end of the trigger block, a straight groove is provided on the back of the support tube, one end of the straight groove is close to the middle of the support tube, and the other end of the straight groove is communicated with the rotating groove, a protrusion is provided on the back of the trigger block, and the protrusion is slidably fitted in the straight groove, the trigger rod extends along the tube cavity of the support tube to the outside of the through hole and is installed with a counterweight block rotating upward, when the protrusion slides into the straight groove, the trigger block is deflected downward along the straight groove, and the counterweight block is deflected downward by the trigger rod, and a spring is filled in the support tube, and the spring is elastically supported between one end of the support tube and the trigger block;

[0004] The protective mechanism includes a gear fixed on the bottom end of the counterweight block, and the protective mechanism also includes a tooth seat fixed on the back of the outer shell, and the tooth seat is away from the straight direction of the gear. When the gear moves to engage with the tooth seat, the outer shell is driven to rotate through the meshing relationship until the mirror surface of the mirror body faces downward.

[0005] Further preferably, a limiting hole is formed on the back of the protrusion, and the protective mechanism further comprises a push rod, one end of which is inserted into the limiting hole, and the other end of which is hingedly upwardly connected to a first suction cup, and the first suction cup is adsorbed on the front window of the car to position the push rod;

[0006] Further preferably, the limiting rod is a plastic rod made of high temperature resistant material.

[0007] Further preferably, a second suction cup is installed on the back of the universal seat.

[0008] Further preferably, a sink cavity is opened on one end of the spring on the trigger block surface, and the spring is movably supported in the sink cavity of the trigger block. When the trigger block reaches the rotating groove, it deflects along the rotating groove relative to the supporting end of the spring through the sink cavity.

[0009] Further preferably, a support seat is fixed on the back side of the shell, the support seat is circular, and the tooth seats are distributed on the circular surface of the support seat in the form of tooth surfaces.

[0010] Further preferably, a weight-loss groove is provided at the bottom end of the counterweight block, the weight-loss groove faces the support seat, the gear is fixed on the weight-loss groove, and the weight-loss groove is arc-shaped. When the counterweight block rotates downward, in addition to utilizing the gear to engage with the gear and rotate, the weight-loss groove also covers the back of the gear.

[0011] Further preferably, the top of the mirror body moves within the top structure of the shell, and the bottom of the mirror body moves within the bottom structure of the shell, the protective mechanism also includes a hinge seat fixed under the back of the shell, and a limiting rod hinged on the hinge seat, the one end of the limiting rod hinged on the hinge seat is provided with an extrusion portion that continues to tilt backward, and the extrusion portion is located on the path of the counterweight block rotating toward the rear and lower direction, the other end of the limiting rod is provided with a connecting rod structure, the connecting rod structure is bent from the back of the shell toward the upper and lower directions respectively, and then bent at the front bottom and front upper part of the shell to limit the front side of the mirror body, a first tension spring is connected between the limiting rod and the back of the shell, a second tension spring is connected between the connecting rod structure and the back of the shell, and the shell is filled with a spring seat, and the front end of the spring seat is supported on the back of the mirror body.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. When the front window is damaged by impact, the destructive force causes the second suction cup to fall off downward with the fragments, the limiting force on the limiting rod disappears, and the limiting force on the trigger block also disappears. The spring releases its length and pushes the trigger block toward the direction of the rotating groove, the trigger block pushes the protrusion, the protrusion pushes the trigger rod, the trigger rod pushes the counterweight block, and the counterweight block pushes the gear to move to the tooth seat and engages with the tooth seat. When the protrusion enters the rotating groove, the counterweight block provides weightlessness to the trigger rod, the trigger rod provides weightlessness to the trigger block, and the trigger block provides weightlessness to the protrusion, and drives the protrusion to deflect downward along the rotating groove to the bottom of the groove. At this time, the protrusion drives the trigger rod to rotate clockwise, the trigger rod drives the gear to rotate clockwise, the gear drives the tooth seat to rotate counterclockwise, the tooth seat drives the shell to rotate counterclockwise, and the shell drives the mirror body to rotate downward. At this time, even if the rearview mirror collides with the human body, the mirror body will not face the human body due to the downward rotation, and will not contact the human body due to the downward rotation. Moreover, even if the mirror body is broken, it will not injure the human body.

[0014] 2. When the counterweight deflects downward, it will not only lead the gear to mesh with the tooth seat to rotate counterclockwise, but also the housing will lead the mirror body to rotate downward and bring the mirror body to a safe angle. When the top of the gear deflects downward, it will also touch the extrusion part, which will squeeze the trigger rod to rotate backward around the hinge seat. According to the connecting rod structure, the other three trigger rods will also rotate backward around the hinge seat. The curved parts of these four trigger rods on the front of the mirror body will deflect outward along the edge of the housing, and the restriction conditions on the front of the mirror body will be released. When the mirror body rotates downward, it will produce a weightless effect and fall down from the housing under the elastic support of the spring seat. When the front window glass is broken due to an accident, the mirror body will not only deflect downward and be at a safe angle, but also the mirror body will fall off in advance even if it moves toward the side of the person with the rearview mirror assembly, and will not cause harm to the human body, further improving the safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a multifunctional automobile rearview mirror provided by an embodiment of the present invention from a front side perspective;

[0016] Figure 2 A schematic diagram of a multifunctional automobile rearview mirror provided by an embodiment of the present invention from a rear side perspective;

[0017] Figure 3 The multifunctional automobile rearview mirror provided by the embodiment of the present invention comprises Figure 2 The enlarged schematic diagram of the A part is shown;

[0018] Figure 4 A partial schematic diagram of the back of the multifunctional automobile rearview mirror provided by an embodiment of the present invention from another perspective;

[0019] Figure 5 A schematic diagram of a multifunctional automobile rearview mirror provided by an embodiment of the present invention when the protective mechanism is removed from the back viewing angle;

[0020] Figure 6 A schematic diagram of only some components of the protective mechanism in the multifunctional automobile rearview mirror provided in an embodiment of the present invention;

[0021] Figure 7 This is a schematic diagram of a multifunctional automobile rearview mirror provided by an embodiment of the present invention, in which the mirror body is installed in a housing through a spring seat when the side plane is disconnected.

[0022] In the figure: 1. outer shell; 2. mirror body; 3. universal seat; 4. protective mechanism; 5. support tube; 6. trigger block; 7. through hole; 8. rotating groove; 9. trigger rod; 11. straight groove; 12. protrusion; 10. counterweight block; 13. spring; 14. gear; 15. gear seat; 16. limiting hole; 17. push rod; 18. first suction cup; 19. second suction cup; 20. sinking cavity; 21. support seat; 22. weightlessness groove; 23. hinge seat; 24. limiting rod; 25. spring seat; 26. extrusion part; 27. connecting rod structure; 28. first tension spring; 29. ​​second tension spring. DETAILED DESCRIPTION

[0023] The above and other embodiments and advantages of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0024] In one embodiment, Figure 1-Figure 7 As shown:

[0025] The present embodiment provides a multifunctional automobile rearview mirror, including a housing 1, a mirror body 2 is inlaid on the front of the housing 1, a universal seat 3 is provided on the back of the housing 1, the front end of the universal seat 3 is universally connected to the back of the housing 1, and a protective mechanism 4 is provided on the back of the housing 1. The protective mechanism 4 includes a support tube 5 fixed on the universal seat 3, the support tube 5 extends horizontally toward the side of the universal seat 3, and the protective mechanism 4 also includes a trigger block 6 installed in the support tube 5 and capable of sliding left and right. The extended end of the support tube 5 is provided with a through hole 7, and the back of the support tube 5 is provided with a vertical rotation groove 8, which is close to the extended end of the support tube 5. The trigger block 6 A trigger rod 9 is fixed at the end, a straight groove 11 is provided on the back of the support tube 5, one end of the straight groove 11 is close to the middle of the support tube 5, and the other end of the straight groove 11 is connected to the rotating groove 8. A protrusion 12 is provided on the back of the trigger block 6, and the protrusion 12 is slidably fitted in the straight groove 11. The trigger rod 9 extends along the tube cavity of the support tube 5 to the outside of the through hole 7 and is installed with a counterweight block 10 that rotates upward. When the protrusion 12 slides into the straight groove 11, the trigger block 6 is deflected downward along the straight groove 11, and the counterweight block 10 is deflected downward through the trigger rod 9. The support tube 5 is filled with a spring 13, and the spring 13 is elastically supported between one end of the support tube 5 and the trigger block 6;

[0026] The protection mechanism 4 includes a gear 14 fixed on the bottom end of the counterweight 10, and the protection mechanism 4 also includes a gear seat 15 fixed on the back of the shell 1. The gear seat 15 is away from the gear 14 in a straight line direction. When the gear 14 moves to engage with the gear seat 15, the shell 1 is driven to rotate through the meshing relationship until the mirror surface of the mirror body 2 faces downward.

[0027] A limiting hole 16 is formed on the back of the protrusion 12, and the protection mechanism 4 further comprises a push rod 17, one end of which is inserted into the limiting hole 16, and the other end of the push rod 17 is hingedly upwardly with a first suction cup 18, which is adsorbed on the front window of the car to position the push rod 17;

[0028] The top rod 17 is a plastic rod made of high temperature resistant material.

[0029] A second suction cup 19 is installed on the back of the universal seat 3 .

[0030] When in use, the first suction cup 18 (or other fixing methods are used to fix directly) is adsorbed on the front window of the car, and the entire rearview mirror is fixed through the universal seat 3. At the same time, the second suction cup 19 is adsorbed on the front window of the car to fix the push rod 17. The other end of the push rod 17 is inserted into the limiting hole 16 of the protrusion 12 to limit the trigger block 6 to the position of the support tube 5. At this time, the spring 13 is compressed by the trigger block 6, and at this time, the trigger block 6 is pressed Figure 2As shown, the protrusion 12 is away from the rotating groove 8, and the protrusion 12 is still restricted in the straight groove 11. When the front window is hit and damaged, the destructive force causes the second suction cup 19 to fall off downward with the fragments, and the second suction cup 19 will also fall downward with the push rod 17. The restricting force on the push rod 17 disappears, and the restricting force on the trigger block 6 also disappears. At this time, the spring 13 releases its length and pushes the trigger block 6 toward the rotating groove 8. The trigger block 6 pushes the protrusion 12, the protrusion 12 pushes the trigger rod 9, the trigger rod 9 pushes the counterweight 10, and the counterweight 10 pushes the gear 14 to move to the tooth seat 15 and mesh with the tooth seat 15. When the protrusion 12 enters the rotating groove 8, the counterweight 10 The weight block 10 provides weightlessness to the trigger rod 9, which in turn provides weightlessness to the trigger block 6, which in turn provides weightlessness to the protrusion 12, and drives the protrusion 12 to deflect downward along the rotating groove 8 to the bottom of the groove. At this time, the protrusion 12 rotates clockwise with the trigger rod 9, which rotates clockwise with the gear 14, which rotates counterclockwise with the gear 14, which rotates counterclockwise with the housing 15, and the housing 1 rotates counterclockwise with the mirror body 2. At this time, even if the rearview mirror collides with the human body, the mirror body 2 will not face the human body because it rotates downward, and will not contact the human body because it rotates downward. Moreover, even if the mirror body 2 is broken, it will not injure the human body.

[0031] like Figure 6 As shown, a sink cavity 20 is provided at one end of the spring 13 of the trigger block 6, and the free end of the spring 13 is movably supported in the sink cavity 20 of the trigger block 6. As the spring 13 is released in length, the ejection force provided not only pushes the trigger block 6 with the protrusion 12 into the rotating groove 8, but also when the protrusion 12 loses weight downward, the trigger block 6 can also use its sink cavity 20 to deflect downward along the rotating groove 8 relative to the supporting end of the spring 13.

[0032] In another embodiment, if Figures 2 to 6As shown, a support seat 21 is fixed on the back of the shell 1, and the support seat 21 is circular. The tooth seat 15 is distributed on the circular surface of the support seat 21 in the form of a tooth surface. Under the support of the support seat 21, the tooth seat 15 is supported on the path of the gear 14 after displacement and rotation. A weight loss groove 22 is opened at the bottom end of the counterweight 10, and the weight loss groove 22 faces the support seat 21. The gear 14 is fixed on the weight loss groove 22. The weight loss groove 22 is arc-shaped. When the counterweight 10 rotates downward, in addition to using the gear 14 to engage the gear 14 to rotate, the weight loss groove 22 also covers the back of the gear 14. The top of the mirror body 2 moves in the top structure of the shell 1, and the bottom of the mirror body 2 moves in the bottom structure of the shell 1. The protective mechanism 4 also includes a hinge seat 23 fixed at the lower back of the shell 1, and a limiting rod 24 hinged on the hinge seat 23. One end of the limiting rod 24 hinged on the hinge seat 23 is provided with an extrusion portion 26 that continues to tilt backward, and the extrusion portion 26 is located on the path of the counterweight 10 rotating toward the rear and lower direction. The other end of the limiting rod 24 is provided with a connecting rod structure 27. The connecting rod structure 27 is bent from the back of the shell 1 in the upper and lower directions respectively, and then bent at the front bottom and front upper part of the shell 1 to limit the front side of the mirror body 2. A first tension spring 28 is connected between the limiting rod 24 and the back of the shell 1, and a second tension spring 29 is connected between the connecting rod structure 27 and the back of the shell 1. The shell 1 is filled with a spring seat 25, and the front end of the spring seat 25 is supported on the back of the mirror body 2. Figure 2 As shown, the articulated seats 23 mentioned here are actually four, and these four articulated seats 23 are arranged at the four corners of the back of the shell 1. Each articulated seat 23 is connected to an L-shaped limiting rod 24. The connecting rod structure 27 is divided into a general term distributed in multiple positions, and is composed of a connecting rod unit connected between the left and right limiting rods 24 and a connecting rod unit hinged between the upper and lower limiting rods 24. Only the extrusion portion 26 is set on the limiting rod 24 at the bottom side of the gear seat 15. When the counterweight block 10 moves toward the gear seat 15 and the counterweight block 10 deflects downward due to weightlessness, in addition to rotating counterclockwise with the gear 14 meshing with the gear seat 15, the top of the counterweight block 10 will also rotate to the bottom and collide with the extrusion portion 26, causing the limiting rod 24 to deflect upward and backward. The limiting rod 24 rotates with the connecting rod unit, and the connecting rod unit causes the limiting rod 24 on the right side to deflect upward and backward. The upward and backward deflection of the right limiting rod 24 drives the connecting rod unit on the right to deflect. The right connecting rod unit drives the limiting rod 24 on the upper right side to deflect upward and backward. The upward and backward deflection of the limiting rod 24 on the upper right side drives the upper connecting rod unit to rotate. The upper connecting rod unit drives the limiting rod 24 on the upper left side to deflect upward and backward. At this time, the two upper limiting rods 24 are deflected upward and backward from the top edge of the outer shell 1, and the two lower limiting rods 24 are deflected downward and backward from the bottom edge of the outer shell 1. At this time, the bent limiting ends of the four limiting rods 24 on the mirror body 2 will leave the mirror surface, the limiting conditions of the mirror surface are released, and the mirror body 2 falls off freely from the outer shell 1.

[0033] The first tension spring 28 provides tension to the limiting rod 24. When the limiting rod 24 is normal, its front curved end is restricted on the mirror surface. Similarly, the second tension spring 29 on the opposite side provides support force to the two hinged connecting rod units on the opposite side. When the two limiting rods 24 on the opposite side are normal, the two hinged connecting rod units have sufficient support force to restrict the upper and lower limiting rods 24 on the opposite side so that their front curved ends are also restricted on the mirror surface.

[0034] As mentioned above, when the counterweight 10 deflects downward, it will not only cause the gear 14 to mesh with the tooth seat 15 and rotate counterclockwise, but also cause the housing 1 to cause the mirror body 2 to rotate downward while the tooth seat 15 rotates counterclockwise, bringing the mirror body 2 to a safe angle (rotated downward). Moreover, when the top end of the gear 14 deflects downward, it will also touch the extrusion portion 26, which will squeeze the limiting rod 24 to rotate backward around the hinge seat 23. According to the connecting rod structure 27, the other three limiting rods 24 will also rotate backward around the hinge seat 23. The curved portions of the four limiting rods 24 on the front of the mirror body 2 will deflect outward along the edge of the housing 1. At this time, the restriction conditions on the front of the mirror body 2 are released, and the mirror body 2 produces a weightless effect when it rotates downward, and falls downward from the housing 1 under the elastic support of the spring seat 25. When the front windshield is shattered due to an accident, the mirror body 2 will not only deflect downward to a safe angle, but also the mirror body 2 will not fall off in advance even if it moves toward the side of the person along with the rearview mirror assembly, and will not cause any harm to the human body, thereby further improving the safety factor.

[0035] The above orientation designations do not represent the specific orientations of the components in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme, and the orientations are described relatively with reference to the figures. In essence, the specific orientations of the components are described according to their actual installation and actual use as well as the customary orientations of technicians in this field. This is hereby explained.

[0036] The specific implementation methods described above further describe the invention purpose, technical solutions, and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the protection scope of the present invention. It is particularly pointed out that for those skilled in the art, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Multifunctional automobile rearview mirror, characterized in that: The invention comprises a shell (1), wherein a mirror body (2) is embedded in the front of the shell (1), a universal seat (3) is provided on the back of the shell (1), the front end of the universal seat (3) is universally connected to the back of the shell (1), a protective mechanism (4) is provided on the back of the shell (1), the protective mechanism (4) comprises a support tube (5) fixed on the universal seat (3), the support tube (5) horizontally extends toward the side of the universal seat (3), the protective mechanism (4) also comprises a trigger block (6) installed in the support tube (5) and capable of sliding left and right, a through hole (7) is provided at the extended end of the support tube (5), a vertical rotation groove (8) is opened on the back of the support tube (5), the rotation groove (8) is close to the extended end of the support tube (5), a trigger rod (9) is fixed at the end of the trigger block (6), and the support tube (5) is provided with a through hole (7). A straight groove (11) is provided on the back of the support tube (5), one end of the straight groove (11) is close to the middle of the support tube (5), and the other end of the straight groove (11) is communicated with the rotating groove (8). A protrusion (12) is provided on the back of the trigger block (6), and the protrusion (12) is slidably fitted in the straight groove (11). The trigger rod (9) extends along the tube cavity of the support tube (5) to the outside of the through hole (7) and is installed with a counterweight (10) that rotates upward. When the protrusion (12) slides into the straight groove (11), the trigger block (6) is deflected downward along the straight groove (11), and the counterweight (10) is deflected downward through the trigger rod (9). The support tube (5) is filled with a spring (13), and the spring (13) is elastically supported between one end of the support tube (5) and the trigger block (6); The protective mechanism (4) includes a gear (14) fixed to the bottom end of the counterweight (10), and the protective mechanism (4) also includes a tooth seat (15) fixed to the back of the housing (1), and the tooth seat (15) is away from the gear (14) in a straight line direction. When the gear (14) is displaced to mesh with the tooth seat (15), the housing (1) is driven to rotate through the meshing relationship until the mirror surface of the mirror body (2) faces downward.

2. The multifunctional automobile rearview mirror according to claim 1, characterized in that: The back of the protrusion (12) is provided with a limiting hole (16), and the protective mechanism (4) also includes a push rod (17), one end of the push rod (17) is inserted into the limiting hole (16), and the other end of the push rod (17) is hingedly connected to a first suction cup (18) tilted upward, and the first suction cup (18) is adsorbed on the front window of the car to position the push rod (17).

3. The multifunctional automobile rearview mirror according to claim 2, characterized in that: The top rod (17) is a plastic rod made of high temperature resistant material.

4. The multifunctional automobile rearview mirror according to claim 3, characterized in that: A second suction cup (19) is installed on the back of the universal seat (3).

5. The multifunctional automobile rearview mirror according to claim 4, characterized in that: A sinking cavity (20) is provided on one end of the spring (13) on the surface of the trigger block (6), and the spring (13) is movably supported in the sinking cavity (20) of the trigger block (6). When the trigger block (6) reaches the rotating groove (8), it is deflected along the rotating groove (8) relative to the supporting end of the spring (13) through the sinking cavity (20).

6. The multifunctional automobile rearview mirror according to claim 5, characterized in that: A support seat (21) is fixed on the back of the housing (1); the support seat (21) is circular, and the tooth seat (15) is distributed on the circular surface of the support seat (21) in the form of tooth surfaces.

7. The multifunctional automobile rearview mirror according to claim 6, characterized in that: A weight-loss groove (22) is provided at the bottom end of the counterweight block (10), the weight-loss groove (22) faces the support seat (21), the gear (14) is fixed on the weight-loss groove (22), the weight-loss groove (22) is arc-shaped, and when the counterweight block (10) rotates downward, in addition to meshing with the gear (14) to rotate, the weight-loss groove (22) also covers the back of the gear (14).

8. The multifunctional automobile rearview mirror according to claim 7, characterized in that: The top of the mirror body (2) moves within the top structure of the shell (1), and the bottom of the mirror body (2) moves within the bottom structure of the shell (1). The protective mechanism (4) further comprises a hinge seat (23) fixed at the lower back of the shell (1), and a limiting rod (24) hinged on the hinge seat (23). One end of the limiting rod (24) hinged on the hinge seat (23) is provided with an extrusion portion (26) that continues to tilt backwards, and the extrusion portion (26) is located on the path of the counterweight (10) rotating in the rear-down direction. The other end of the limiting rod (24) is A connecting rod structure (27) is provided at one end. The connecting rod structure (27) is bent from the back of the shell (1) in two directions, namely, in the upper and lower directions, and then folded at the front bottom and the front upper part of the shell (1), so as to limit the front side of the mirror body (2). A first tension spring (28) is connected between the limiting rod (24) and the back side of the shell (1). A second tension spring (29) is connected between the connecting rod structure (27) and the back side of the shell (1). The shell (1) is filled with a spring seat (25), and the front end of the spring seat (25) is supported on the back side of the mirror body (2).

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