Automobile data recorder stable in installation and installation method thereof

Abstract

The invention relates to the field of automobile data recorders, in particular to an automobile data recorder stable in installation and an installation method thereof.The automobile data recorder stable in installation comprises a recorder body attached to an interior rearview mirror, a fixing mechanism used for connecting the interior rearview mirror with the recorder body and a limiting mechanism; the limiting mechanism comprises two limiting plates arranged on the back face of the interior rearview mirror, the two limiting plates are located on the left side and the right side of the interior rearview mirror respectively and can make contact with the interior rearview mirror, mounting plates are fixedly connected to the two limiting plates, two limiting guide rods are fixedly connected to the recorder body, the limiting guide rods penetrate into the mounting plates, and the limiting guide rods are fixedly connected to the recorder body. And a driving mechanism for driving the two mounting plates to move is mounted on the recorder body. The problem that the shooting effect of the automobile data recorder is affected is solved.

Description

Technical Field

[0001] This invention relates to the field of dashcams, and more particularly to a dashcam that is stably installed and its installation method. Background Technology

[0002] A dashcam is a vehicle device used to record video, audio, and vehicle driving data in real time during driving, providing video evidence in the event of an accident. Currently, dashcams are installed either by adhesive or suction cups on the windshield, or by clips or elastic rubber bands on the rearview mirror.

[0003] In related technologies, a vehicle-mounted dashcam includes a dashcam body that is attached to the rearview mirror of a vehicle and a camera. An extension plate that is slidably connected to the dashcam body is mounted on the dashcam body. The camera is mounted on the extension plate and its position can be adjusted. Multiple hooks are fixedly connected to the upper and lower sides of the back of the dashcam body. The multiple hooks are respectively located on the left and right sides of the dashcam body. The upper and lower hooks are connected by an elastic rubber band. The elastic rubber band is placed on the rearview mirror of the vehicle, thereby installing the dashcam body on the rearview mirror of the vehicle, which is convenient for staff to install and remove.

[0004] Regarding the aforementioned technologies, simply mounting the dashcam unit on the rearview mirror using an elastic rubber band can cause it to loosen or shift if the vehicle travels on bumpy roads or is involved in a collision, thus affecting the recording quality of the dashcam. Summary of the Invention

[0005] To address the issue of impacting the recording quality of dashcams, this invention provides a stable dashcam and its installation method.

[0006] Firstly, the present invention provides a stable-installation vehicle dashcam using the following technical solution: A stable-installing dashcam includes a dashcam body that adheres to a rearview mirror, a fixing mechanism for connecting the rearview mirror and the dashcam body, and a limiting mechanism. The limiting mechanism includes two limiting plates disposed on the back of the rearview mirror, with the two limiting plates located on the left and right sides of the rearview mirror respectively, and both capable of contacting the rearview mirror. A mounting plate is fixedly connected to each of the two limiting plates. Two limiting guide rods are fixedly connected to the dashcam body, and the limiting guide rods pass through the mounting plates. A driving mechanism for moving the two mounting plates is installed on the dashcam body.

[0007] Preferably, the fixing mechanism includes two fixing plates that are slidably mounted on the upper and lower sides of the recorder body, respectively. Both fixing plates can contact the rearview mirror inside the vehicle. The fixing mechanism also includes a driving component for driving the two fixing plates to move closer or further apart from each other.

[0008] Preferably, a fixed guide rod is slidably installed on the side of the fixed plate away from the recorder body, a baffle is fixedly connected to the fixed guide rod, a fixed spring is fixedly connected between the fixed plate and the baffle, and a sliding slope is formed on the end face of the baffle facing the rearview mirror, the sliding slope can contact the side of the back of the rearview mirror.

[0009] Preferably, a first airbag is fixedly connected to the mounting plate, a second airbag is fixedly connected to the limiting plate, a third airbag is fixedly connected to the fixing plate, and a fourth airbag is fixedly connected to the baffle plate.

[0010] Preferably, the recorder body is equipped with a charging and discharging mechanism, which includes an annular tube and an air pump fixedly connected to the recorder body. The air outlet of the air pump is connected to the annular tube and a one-way valve is provided at the air outlet of the air pump. An air outlet pipe is connected to the annular tube and a sealing component is provided in the air outlet pipe. The first airbag is connected to the second airbag and the annular tube, and the third airbag is connected to the fourth airbag and the annular tube.

[0011] Preferably, the driving mechanism includes a drive motor mounted on the recorder body, a drive screw rotatably mounted on the recorder body, the drive screw passing through a mounting plate and threadedly connected to the mounting plate, a first gear fixedly connected to the output shaft of the drive motor, and a second gear meshing with the first gear fixedly connected to the drive screw.

[0012] Preferably, the recorder body has a drive groove, and the drive component includes a bidirectional screw rotatably installed in the drive groove. The two ends of the bidirectional screw pass through a fixed plate and are threadedly connected to the fixed plate. A drive shaft is rotatably installed on the recorder body, and the drive shaft is connected to the bidirectional screw via a conveyor belt. The drive motor is slidably installed on the recorder body. A first bevel gear is fixedly connected to the output shaft of the drive motor, and a second bevel gear is fixedly connected to the drive shaft. When the first gear and the second gear are separated, the second bevel gear meshes with the first bevel gear. A control mechanism for controlling the movement of the drive motor is installed on the recorder body.

[0013] Preferably, the sealing component includes a sealing shaft rotatably mounted in the vent pipe, a sealing plate fixedly connected to the sealing shaft, the sealing shaft extending to the outside of the vent pipe and fixedly connected to a sealing gear, and a rack meshing with the sealing gear fixedly connected to the drive motor.

[0014] Preferably, the recorder body has a receiving groove on the side near the rearview mirror of the vehicle, and a suction cup is installed in the receiving groove.

[0015] Secondly, the installation method for a stable vehicle dashcam provided by this invention adopts the following technical solution: A method for installing a stable dashcam includes the following steps: S1. First, attach the dashcam body to the rearview mirror inside the car and fine-tune the position of the dashcam body; S2. Then press the recorder body to make the suction cup adhere to the rearview mirror inside the car. S3. Then start the drive motor. The drive motor drives the two limit plates to move. When the limit plates contact the rearview mirror inside the vehicle, the control mechanism is activated, the drive motor moves, and the drive motor drives the two fixed plates to move. S4. When the mounting plate contacts the rearview mirror inside the vehicle, the drive motor is turned off, the air pump is started, and air is pumped into the first airbag, the second airbag, the third airbag and the fourth airbag. S5. After the first, second, third, and fourth airbags are all filled, turn off the inflation pump.

[0016] In summary, the present invention has at least the following beneficial technical effects: 1. When installing the dashcam, first attach the dashcam to the rearview mirror and fine-tune its position. Then, use the fixing mechanism to connect the rearview mirror and the dashcam, and start the drive mechanism. The drive mechanism moves the two mounting plates. When the mounting plates contact the rearview mirror, they limit the dashcam from the rear, preventing it from shaking and solving the problem of affecting the recording effect of the dashcam. 2. Activate the drive unit, which moves the two fixing plates closer together. When the fixing plates contact the rearview mirror inside the car, they limit the recording device from the top and bottom, further solving the problem of affecting the recording effect of the dashcam. 3. The first, second, third, and fourth airbags all come into contact with the rearview mirror. When the rearview mirror is irregularly shaped, the first airbag can fill the gap between the rearview mirror and the mounting plate. The first airbag can also absorb shocks when the vehicle passes through bumpy roads. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a stable vehicle dashcam according to an embodiment of the present invention.

[0018] Figure 2This is a schematic diagram of the recorder body according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the fixing mechanism according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the limiting mechanism according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the charging and discharging mechanism according to an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the sealing component according to an embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram of the structure of the driving component according to an embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of the control mechanism according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1. Rearview mirror; 2. Recorder body; 21. Suction cup; 3. Fixing mechanism; 31. Fixing plate; 32. Fixing guide rod; 33. Baffle; 34. Fixing spring; 35. Third airbag; 36. Fourth airbag; 37. Bidirectional screw; 38. Drive shaft; 381. Second bevel gear; 4. Limiting mechanism; 41. Limiting plate; 42. Mounting plate; 43. Limiting guide rod; 44. First airbag; 45. Second airbag; 5. Drive mechanism; 51. Drive motor; 511. First gear 512. Wheel; 52. First bevel gear; 52. Drive screw; 521. Second gear; 6. Inflation / discharge mechanism; 61. Annular tube; 62. Air outlet pipe; 63. Sealing shaft; 64. Sealing gear; 65. Rack; 7. Control mechanism; 71. Electromagnet; 72. Iron block; 73. Control spring; 74. First spring; 75. Control block; 76. Moving block; 77. Moving spring; 78. Control airbag; 8. Locking mechanism; 81. Fixing block; 82. Fixing spring; 83. Fixing rod; 84. Abutment rod. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 -Appendix Figure 8 The present invention will be described in further detail below.

[0027] This invention discloses a stable-installation dashcam and its installation method. (Refer to...) Figures 1 to 4A stable-installed dashcam includes a dashcam body 2 that is attached to a rearview mirror 1, a fixing mechanism 3 for connecting the rearview mirror 1 and the dashcam body 2, and a limiting mechanism 4. An extension plate is slidably mounted on the dashcam body 2, and a camera is mounted on the extension plate. The limiting mechanism 4 includes two limiting plates 41 located on the back of the rearview mirror 1, respectively on the left and right sides of the rearview mirror 1, both capable of contacting the mirror. Mounting plates 42 are fixedly connected to each limiting plate 41, with a gap between the mounting plates 42 and the rearview mirror 1. Two limiting guide rods 43 are fixedly connected to the dashcam body 2. The recorder body 2 is fitted into the mounting plate 42, and a drive mechanism 5 is installed on the recorder body 2 to drive the two mounting plates 42 to move. When the recorder body 2 needs to be installed, first, the recorder body 2 is attached to the rearview mirror 1 of the car and the position of the recorder body 2 is finely adjusted. Then, the fixing mechanism 3 is used to connect the rearview mirror 1 of the car and the recorder body 2, and the drive mechanism 5 is activated. The drive mechanism 5 drives the two mounting plates 42 to move. When the mounting plate 42 contacts the rearview mirror 1 of the car, the mounting plate 42 limits the recorder body 2 from the rear, so that the recorder body 2 is not easy to shake, which solves the problem of affecting the recording effect of the dashcam.

[0028] Reference Figure 2 and Figure 3 The fixing mechanism 3 includes two fixing plates 31 that are slidably installed on the upper and lower sides of the recorder body 2 respectively. Both fixing plates 31 can contact the rearview mirror 1 inside the vehicle. The fixing mechanism 3 also includes a driving component for driving the two fixing plates 31 to move closer or further apart. When the driving component is activated, the driving component drives the two fixing plates 31 to move closer together. When the fixing plates 31 contact the rearview mirror 1 inside the vehicle, the fixing plates 31 limit the recorder body 2 from the upper and lower sides, further solving the problem of affecting the recording effect of the dashcam.

[0029] Reference Figures 1 to 7 A fixed guide rod 32 is slidably installed on the side of the fixed plate 31 away from the recorder body 2. A baffle 33 is fixedly connected to the fixed guide rod 32. A fixed spring 34 is fixedly connected between the fixed plate 31 and the baffle 33. A sliding slope is formed on the end face of the baffle 33 facing the rearview mirror 1. The sliding slope can contact the side of the back of the rearview mirror 1. During the movement of the fixed plate 31, the fixed plate 31 drives the baffle 33 to move. The sliding slope slides along the side of the back of the rearview mirror 1, so that the baffle 33 contacts the back of the rearview mirror 1, which further solves the problem of affecting the shooting effect of the dashcam.

[0030] Reference Figures 1 to 5A first airbag 44 is fixedly connected to the mounting plate 42, a second airbag 45 is fixedly connected to the limiting plate 41, a third airbag 35 is fixedly connected to the fixing plate 31, and a fourth airbag 36 is fixedly connected to the baffle 33. The first airbag 44, the second airbag 45, the third airbag 35, and the fourth airbag 36 are all in contact with the rearview mirror 1. When the rearview mirror 1 is irregularly shaped, the first airbag 44 can fill the gap between the rearview mirror 1 and the mounting plate 42. When the vehicle passes through bumpy road sections, the first airbag 44 can also absorb shocks.

[0031] Reference Figures 1 to 6 The recorder body 2 is equipped with a charging and discharging mechanism 6, which includes an annular tube 61 fixedly connected to the recorder body 2 and an air pump. The air outlet of the air pump is connected to the annular tube 61 and a one-way valve is provided at the air outlet of the air pump. An air outlet pipe 62 is connected to the annular tube 61 and a sealing component is provided in the air outlet pipe 62. The first airbag 44 is connected to the second airbag 45 and the annular tube 61, and the third airbag 35 is connected to the fourth airbag 36 and the annular tube 61. When the air pump is started, the air pump inflates the annular tube 61, and the annular tube 61 inflates the first airbag 44, the second airbag 45, the third airbag 35 and the fourth airbag 36, which can limit and fix the rearview mirror 1 of different sizes. When the sealing component is opened, the gas is discharged from the air outlet pipe 62.

[0032] Reference Figure 4 and Figure 5 The drive mechanism 5 includes a drive motor 51 mounted on the recorder body 2. A drive screw 52 is rotatably mounted on the recorder body 2. The drive screw 52 passes through the mounting plate 42 and is threadedly connected to the mounting plate 42. A first gear 511 is fixedly connected to the output shaft of the drive motor 51, and a second gear 521 that meshes with the first gear 511 is fixedly connected to the drive screw 52. When the drive motor 51 is started, the drive motor 51 drives the first gear 511 to rotate, the first gear 511 drives the second gear 521 to rotate, the second gear 521 drives the drive screw 52 to rotate, and the drive screw 52 drives the mounting plate 42 to move.

[0033] Reference Figures 1 to 7The recorder body 2 has a drive groove. The drive component includes a bidirectional screw 37 rotatably installed in the drive groove. Both ends of the bidirectional screw 37 pass through the fixing plate 31 and are threadedly connected to the fixing plate 31. A drive shaft 38 is rotatably installed on the recorder body 2. The drive shaft 38 and the bidirectional screw 37 are connected by a conveyor belt. A drive motor 51 is slidably installed on the recorder body 2. A first bevel gear 512 is fixedly connected to the output shaft of the drive motor 51, and a second bevel gear 381 is fixedly connected to the drive shaft 38. When the first gear 511 and the second gear 521 are separated, the first bevel gear 512... The second bevel gear 381 meshes with the first bevel gear 512. The recorder body 2 is equipped with a control mechanism 7 for controlling the movement of the drive motor 51. When the limit plate 41 contacts the rearview mirror 1, the control mechanism 7 is activated and controls the drive motor 51 to move. When the drive motor 51 drives the first gear 511 to separate from the second gear 521, the second bevel gear 381 meshes with the first bevel gear 512. The drive motor 51 drives the drive shaft 38 to rotate, and the drive shaft 38 drives the bidirectional screw 37 to rotate. The bidirectional screw 37 drives the two fixed plates 31 to move.

[0034] Reference Figures 1 to 6 The sealing component includes a sealing shaft 63 rotatably mounted in the vent pipe 62, a sealing plate fixedly connected to the sealing shaft 63, the sealing shaft 63 extending to the outside of the vent pipe 62 and fixedly connected to a sealing gear 64, and a rack 65 fixedly connected to the drive motor 51 that meshes with the sealing gear 64. During the movement of the drive motor 51, the drive motor 51 drives the rack 65 to move, the rack 65 drives the sealing gear 64 to rotate, the sealing gear 64 drives the sealing shaft 63 to rotate, and the sealing shaft 63 drives the sealing plate to rotate, thereby sealing the vent pipe 62.

[0035] Reference Figure 1 and Figure 2 The recorder body 2 has a receiving groove on the side near the rearview mirror 1 of the vehicle, and a suction cup 21 is installed in the receiving groove. After the recorder body 2 is finely adjusted, it is used to press the recorder body 2 so that the suction cup 21 is attached to the rearview mirror 1 of the vehicle, thereby pre-positioning the recorder body 2 to facilitate the installation by the staff.

[0036] Reference Figures 1 to 8The control mechanism 7 includes a battery and an electromagnet 71 fixedly connected to the recorder body 2. The battery and electromagnet 71 are electrically connected. An iron block 72 that works with the electromagnet 71 is fixedly connected to the drive motor 51. A control spring 73 is fixedly connected between the drive motor 51 and the recorder body 2. A control groove is provided on the limiting plate 41. A first spring 74 is fixedly connected to the inner wall of the control groove. A control block 75 is slidably installed in the control groove. The first spring 74 and the control block 75 are fixedly connected. 5 can contact the rearview mirror 1 inside the vehicle. The control block 75 is provided with a first contact, which is electrically connected to the electromagnet 71. A movable block 76 is slidably installed in the control slot. The movable block 76 is provided with a second contact that works in conjunction with the first contact. The second contact is electrically connected to the battery. A movable spring 77 is fixedly connected between the movable block 76 and the inner wall of the control slot. A control airbag 78 is fixedly connected to the inner wall of the control slot. The control airbag 78 is connected to the second airbag 45 and is in contact with the movable block 76.

[0037] A locking mechanism 8 is installed on the recorder body 2. The locking mechanism 8 includes a fixing block 81 fixedly connected to the recorder body 2. A fixing groove is opened on the fixing block 81. A fixing spring 82 is fixedly connected to the inner wall of the fixing groove. A fixing rod 83 is slidably installed in the fixing groove. The fixing spring 82 is fixedly connected to the fixing rod 83. A slot for inserting the fixing rod 83 is opened on the drive motor 51. An abutment rod 84 is slidably installed on the fixing block 81. The abutment rod 84 is fixedly connected to the fixing rod 83 and contacts the fixing plate 31.

[0038] The implementation principle of a stably installed dashcam according to an embodiment of the present invention is as follows: When the dashcam body 2 needs to be installed, firstly, the dashcam body 2 is attached to the rearview mirror 1 inside the car, and the position of the dashcam body 2 is slightly adjusted. Then, the dashcam body 2 is pressed so that the suction cup 21 is attracted to the rearview mirror 1 inside the car. Subsequently, the drive motor 51 is started, and the drive motor 51 drives the two limiting plates 41 to move. When the limiting plates 41 contact the rearview mirror 1 inside the car, the control block 75 retracts into the control slot, the first contact and the second contact make contact, the battery powers the electromagnet 71, the electromagnet 71 attracts the iron block 72, and the iron block 72 drives the drive motor 51 to move. When the first gear 511 and the second gear 521 are separated, the second bevel gear 381 meshes with the first bevel gear 512. The drive motor 51 drives the bidirectional screw 37 to rotate, and the bidirectional screw 37 drives the two fixing plates 31 to move. At the same time, the drive motor 51 drives the rack 65 to move, and the rack 65 drives the sealing plate to rotate, thus sealing the air outlet pipe 62. When the fixing plate 31 contacts the rearview mirror 1, the drive motor 51 is turned off, the air pump is started, and the air pump inflates the annular pipe 61. The annular pipe 61 inflates the first airbag 44, the second airbag 45, the third airbag 35, and the fourth airbag 36, which can limit and fix the rearview mirror 1 of different sizes.

[0039] When the fixing plate 31 separates from the abutment rod 84, the fixing spring 82 pushes the fixing rod 83 to move, so that the fixing rod 83 is inserted into the slot on the drive motor 51 and locks the drive motor 51; the air pump inflates the control airbag 78, the control airbag 78 pushes the moving block 76 to move, compresses the moving spring 77, and the moving block 76 causes the first contact to separate from the second contact.

[0040] A method for installing a stable dashcam includes the following steps: S1. First, attach the recorder body 2 to the rearview mirror 1 inside the car and fine-tune the position of the recorder body 2.

[0041] S2. Then press the recorder body 2 to make the suction cup 21 adhere to the rearview mirror 1 inside the car.

[0042] S3. Then start the drive motor 51. The drive motor 51 drives the two limit plates 41 to move. When the limit plate 41 contacts the rearview mirror 1, the control mechanism 7 is started, the drive motor 51 moves, and the drive motor 51 drives the two fixed plates 31 to move.

[0043] S4. When the fixing plate 31 contacts the rearview mirror 1 inside the vehicle, the drive motor 51 is turned off and the air pump is started to inflate the first airbag 44, the second airbag 45, the third airbag 35 and the fourth airbag 36.

[0044] S5. After the first airbag 44, the second airbag 45, the third airbag 35 and the fourth airbag 36 are all filled, turn off the inflation pump.

[0045] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A stable-installing dashcam, comprising a dashcam body (2) fitted onto a rearview mirror (1) of a vehicle, a fixing mechanism (3) for connecting the rearview mirror (1) and the dashcam body (2), and a limiting mechanism (4), characterized in that: The limiting mechanism (4) includes two limiting plates (41) set on the back of the rearview mirror (1). The two limiting plates (41) are located on the left and right sides of the rearview mirror (1) respectively, and both can contact the rearview mirror (1). Mounting plates (42) are fixedly connected to the two limiting plates (41). Two limiting guide rods (43) are fixedly connected to the recorder body (2). The limiting guide rods (43) pass through the mounting plates (42). A driving mechanism (5) for driving the two mounting plates (42) to move is installed on the recorder body (2).

2. A stable-installation dashcam according to claim 1, characterized in that: The fixing mechanism (3) includes two fixing plates (31) that are slidably installed on the upper and lower sides of the recorder body (2). Both fixing plates (31) can contact the rearview mirror (1) inside the vehicle. The fixing mechanism (3) also includes a driving component for driving the two fixing plates (31) to move closer or further away from each other.

3. A stable-installation dashcam according to claim 2, characterized in that: A fixed guide rod (32) is slidably installed on the side of the fixed plate (31) away from the recorder body (2). A baffle (33) is fixedly connected to the fixed guide rod (32). A fixed spring (34) is fixedly connected between the fixed plate (31) and the baffle (33). A sliding slope is formed on the end face of the baffle (33) facing the rearview mirror (1). The sliding slope can contact the side of the back of the rearview mirror (1).

4. A stable-installation dashcam according to claim 3, characterized in that: The mounting plate (42) is fixedly connected to a first airbag (44), the limiting plate (41) is fixedly connected to a second airbag (45), the fixing plate (31) is fixedly connected to a third airbag (35), and the baffle (33) is fixedly connected to a fourth airbag (36).

5. A stable-installation dashcam according to claim 4, characterized in that: The recorder body (2) is equipped with a charging and discharging mechanism (6). The charging and discharging mechanism (6) includes an annular tube (61) and an air pump fixedly connected to the recorder body (2). The air outlet of the air pump is connected to the annular tube (61). A one-way valve is provided at the air outlet of the air pump. An air outlet pipe (62) is connected to the annular tube (61). A sealing component is provided in the air outlet pipe (62). The first airbag (44) is connected to the second airbag (45) and the annular tube (61). The third airbag (35) is connected to the fourth airbag (36) and the annular tube (61).

6. A stable-installation dashcam according to claim 5, characterized in that: The drive mechanism (5) includes a drive motor (51) mounted on the recorder body (2), a drive screw (52) rotatably mounted on the recorder body (2), the drive screw (52) passing through the mounting plate (42) and threadedly connected to the mounting plate (42), a first gear (511) fixedly connected to the output shaft of the drive motor (51), and a second gear (521) meshing with the first gear (511) fixedly connected to the drive screw (52).

7. A stable-installation dashcam according to claim 6, characterized in that: The recorder body (2) has a drive groove. The drive component includes a bidirectional screw (37) rotatably installed in the drive groove. The two ends of the bidirectional screw (37) are respectively inserted into the fixing plate (31) and threadedly connected to the fixing plate (31). The recorder body (2) has a drive shaft (38) rotatably installed. The drive shaft (38) and the bidirectional screw (37) are connected by a conveyor belt. The drive motor (51) is slidably installed on the recorder body (2). A first bevel gear (512) is fixedly connected to the output shaft of the drive motor (51). A second bevel gear (381) is fixedly connected to the drive shaft (38). When the first gear (511) and the second gear (521) are separated, the second bevel gear (381) meshes with the first bevel gear (512). The recorder body (2) is equipped with a control mechanism (7) for controlling the movement of the drive motor (51).

8. A stable-installation dashcam according to claim 7, characterized in that: The sealing component includes a sealing shaft (63) rotatably mounted in the vent pipe (62), a sealing plate fixedly connected to the sealing shaft (63), the sealing shaft (63) extending to the outside of the vent pipe (62) and fixedly connected to a sealing gear (64), and a rack (65) fixedly connected to the drive motor (51) meshing with the sealing gear (64).

9. A stable-installation dashcam according to claim 1, characterized in that: The recorder body (2) has a receiving groove on the side near the rearview mirror (1) inside the vehicle, and a suction cup (21) is installed in the receiving groove.

10. A method for installing a stable dashcam, using a stable dashcam as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. First, attach the recorder body (2) to the rearview mirror (1) inside the car and fine-tune the position of the recorder body (2); S2. Then press the recorder body (2) to make the suction cup (21) adhere to the rearview mirror (1) inside the car; S3. Then start the drive motor (51). The drive motor (51) drives the two limit plates (41) to move. When the limit plate (41) contacts the rearview mirror (1) inside the vehicle, the control mechanism (7) is started, the drive motor (51) moves, and the drive motor (51) drives the two fixed plates (31) to move. S4. When the fixing plate (31) contacts the rearview mirror (1) inside the vehicle, the drive motor (51) is turned off, the air pump is started, and air is pumped into the first airbag (44), the second airbag (45), the third airbag (35) and the fourth airbag (36); S5. After the first airbag (44), the second airbag (45), the third airbag (35) and the fourth airbag (36) are all filled, turn off the inflation pump.

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