WO2017031668A1 - Vibration absorber, mobile hard disk box and vehicle-mounted monitoring device - Google Patents

Abstract

Provided is a vibration absorber (10), comprising a first connecting piece, a second connecting piece and a damper, wherein the second connecting piece and the first connecting piece are arranged at intervals; the damper comprises a first vibration absorption part, a second vibration absorption part and a third vibration absorption part; the first vibration absorption part is connected to the first connecting piece; the second vibration absorption part is connected to the second connecting piece; and the third vibration absorption part is arranged between the first vibration absorption part and the second vibration absorption part, and is respectively connected to the first vibration absorption part and the second vibration absorption part. The vibration absorber in the present invention is mainly composed of the first connecting piece, the second connecting piece and the damper, has a simple structure and is easy to mount; a damper structure facilitates the abatement of a vibratory force, thereby achieving vibration absorption protection for a vibration absorption object. Also provided is a mobile hard disk box where at least two mechanical hard disks (20) are mounted and arranged with one at the top and the other one at the bottom, such that the overall size of the mobile hard disk box is greatly reduced, facilitating the mounting and arrangement. Also provided is a vehicle-mounted monitoring device.

Description

 Shock absorber, mobile hard disk box and vehicle monitoring device

 [0001] The present invention relates to the technical field of in-vehicle monitoring devices, and in particular, to a vibration damper, a mobile hard disk case having the same, and an in-vehicle monitoring device having the same.

 Background technique

 [0002] The vehicle monitoring device is installed on a mobile vehicle such as a bus, a bus, a school bus, a police car, a dangerous goods car, a rail transit locomotive, etc., wherein the vehicle monitoring device includes a mobile hard disk box for storing data and information. The mechanical hard disk of the mobile hard disk case is liable to cause data loss, unstable transmission, damage, etc. due to the vibration environment. Therefore, it is necessary to perform strict vibration isolation protection on the mechanical hard disk. In the prior art, a vibration damping device is generally provided around the mechanical hard disk in order to achieve the vibration damping protection effect. However, the vibration damping device is not only complicated in structure, but also difficult to achieve an ideal vibration damping effect.

 [0003] In addition, since most of the mobile hard disk cartridges are equipped with two or more mechanical hard disks, and the two or more mechanical hard disks are installed on the same horizontal surface, the overall size of the mobile hard disk cartridge is reduced. Large, not conducive to the installation of a narrow installation space on a moving vehicle.

 [0004] Therefore, it is necessary to provide a technical means to solve the above drawbacks.

 technical problem

 [0005] The object of the present invention is to overcome the deficiencies of the prior art and to provide a damper to solve the problem of complicated structure and poor vibration damping effect of the vibration damping device installed on the mechanical hard disk of the mobile hard disk box in the prior art.

 Problem solution

 Technical solution

The present invention is implemented as such, the damper includes:

[0007] a first connector for connecting to a vibrating object that can provide vibration;

 [0008] a second connecting member for connecting to the vibration damping object requiring vibration protection protection, wherein the second connecting member is spaced apart from the first connecting member; and

[0009] a vibration damping member for attenuating a vibration force transmitted from the first connecting member to the second connecting member, wherein the vibration damping member includes a first vibration damping portion, a second vibration damping portion, and a a third damper portion, the first damper portion is connected The first connecting member, the second damper portion is connected to the second connecting member, and the third damper portion is disposed between the first damper portion and the second damper portion, and The first damper portion and the second damper portion are connected to each other.

 [0010] Specifically, the vibration damping member is provided with at least three, and the at least three vibration damping members are evenly spaced on the assembly composed of the first connecting member and the second connecting member.

 [0011] Further, at least one of the at least three vibration dampers is defined as a first damper, and the third damper of the first damper is respectively associated with the first damper The second damper is obliquely connected, and the first damper is disposed at an intermediate position of the assembly consisting of the first connecting member and the second connecting member;

 [0012] at least three of the damper members are defined as a second damper member except for the first damper member, and the third damper portion of any of the second damper members is respectively The first damper portion and the second damper portion are vertically connected.

 [0013] Further, an inclination angle of the third damper portion of the first damper member with respect to the first damper portion of the first damper member is 25°-45°, The angle of inclination of the third damper portion of the first damper member with respect to the second damper portion of the first damper member is 25°-45°.

 [0014] Specifically, the vibration damping member is a damping vibration damping rubber.

 [0015] Specifically, the first connecting member and the second connecting member are both stainless steel sheets.

[0016] The technical effect of the damper of the present invention is: The damper of the present invention is mainly composed of a first connecting member, a second connecting member and a vibration reducing member, has a simple structure and is convenient to install; and, by the vibration absorbing member The vibration force of the vibrating object is transmitted to the first connecting member, and then the first damper portion, the third damper portion and the second damper portion are sequentially transmitted by the first connecting member, thereby mitigating the vibration step by step Power, and in the second damper part, the vibration force is transmitted to the second connecting piece and then transmitted to the vibration damping object, the vibration force has been reduced to a lower safety value, and the vibration damage is not caused to the vibration damping object, thereby achieving Damping protection for vibration-damping objects.

[0017] The present invention provides a mobile hard disk box including at least two mechanical hard disks, a hard disk skeleton, a revolving door, the above-mentioned damper and profile frame;

 [0018] one side of the hard disk frame is provided with a mounting slot corresponding to the number of at least two mechanical hard disks from top to bottom

Each of the mechanical hard disks is disposed in each of the mounting slots;

[0019] the revolving door is rotated on a side end of the hard disk frame, and can rotate the cover to the at least two of the Slotting

 [0020] The profile frame is provided with a receiving cavity for receiving the component, and at least two of the mechanical hard disk, the hard disk frame, the revolving door and the damper are accommodated in the receiving cavity Inside;

[0021] The first connecting member of the damper is connected to the profile frame, and the second connecting member of the damper is connected to a side end of the hard disk frame.

[0022] Specifically, the mechanical hard disk is provided with two;

 [0023] The mounting slot is correspondingly provided with two, and is defined as a first mounting slot and a second mounting slot, the first mounting slot is located at an upper end of the hard disk frame, and the second mounting slot is located at the hard disk The lower end of the skeleton;

[0024] The upper end of the hard disk frame is provided with a first cover plate covering the first installation slot, and the lower end of the hard disk frame is provided with a second cover plate covering the second installation slot.

[0025] Preferably, the damper is provided with two, the two dampers are disposed on two sides of the hard disk frame

And connected to both end walls of the accommodating cavity.

[0026] Preferably, the rotating door is provided with an elastic pressing member corresponding to the number of the at least two mechanical hard disks on one side of the mounting groove, and each of the elastic pressing members is elastically pressed. Each of the mechanical hard disks.

[0027] Further, the elastic pressing member is an elastic steel sheet, and the elastic steel sheet includes at least one contact surface in contact with the mechanical hard disk, and the contact surface is inclined with respect to the revolving door.

[0028] Specifically, the mobile hard disk box further includes a front door assembly disposed on the profile frame and covering a front end of the accommodating cavity, and being disposed on the profile frame and covering the cover relative to the A rear cover that accommodates the rear end of the front end of the cavity.

 [0029] Further, the mobile hard disk box further includes a USB signal transfer board, and the USB signal transfer board is disposed at a lower end of the rear cover and passes through a flexible connecting line and at least two of the machines The USB signal adapter board is provided with a connector for connecting to the host, and the rear cover is provided with a mouthpiece, and the connector is disposed opposite to the mouthpiece.

[0030] Preferably, the mobile hard disk box further includes a rear blocking piece for avoiding collision contact between the hard disk frame and the rear cover plate, wherein the rear blocking piece is disposed on a side of the hard disk frame End and facing the rear cover

[0031] Further, the rear flap is provided with two, and the two rear flaps are disposed on two sides of the side end of the hard disk frame. Advantageous effects of the invention

 Beneficial effect

 [0032] The technical effect of the mobile hard disk box of the present invention is: one side of the hard disk frame is provided with a mounting slot corresponding to the number of at least two mechanical hard disks from top to bottom, thereby enabling the at least two mechanical hard disks to be The upper and lower installation settings make the overall size of the removable hard disk box greatly reduced, which is advantageous for the installation setting.

 [0033] In addition, since the mobile hard disk box has the above-mentioned damper, the vibration damping effect of at least two mechanical hard disks is better ensured, and the overall reliability and service life of the mobile hard disk box are greatly improved.

 [0034] The present invention also provides an in-vehicle monitoring device having the above-described mobile hard disk case, whereby the stability and reliability of the in-vehicle monitoring device can be greatly improved.

 Brief description of the drawing

 DRAWINGS

 1 is a schematic view of an in-vehicle monitoring device of the present invention;

 2 is a schematic diagram of the mobile hard disk box of the vehicle monitoring device of the present invention separated from the main body box;

 3 is a schematic diagram of a mobile hard disk box of the vehicle monitoring device of the present invention;

 4 is a schematic diagram of a mobile hard disk box removal profile frame of the vehicle monitoring device of the present invention;

 5 is a schematic view of a profile frame of a mobile hard disk box of the vehicle-mounted monitoring device of the present invention;

 6 is a schematic diagram of a mechanical hard disk of a mobile hard disk box of the in-vehicle monitoring device of the present invention mounted on a hard disk frame and the revolving door is in a closed state; [0040] FIG.

7 is a schematic diagram of a mechanical hard disk of a mobile hard disk box of the in-vehicle monitoring device of the present invention mounted on a hard disk frame and the revolving door is in a hiccup state;

8 is a schematic diagram of a hard disk skeleton of a mobile hard disk box of the vehicle monitoring device of the present invention;

[0043] FIG. 9 is a schematic diagram of a damper of a mobile hard disk box of the vehicle-mounted monitoring device of the present invention;

10 is a schematic diagram of a first vibration damper of a damper of a mobile hard disk box of the vehicle-mounted monitoring device of the present invention; [0045] FIG. 11 is a damper of a mobile hard disk box of the vehicle-mounted monitoring device of the present invention; A schematic view of the second damper.

Embodiments of the invention

[0046] In order to make the objects, technical solutions and advantages of the present invention more clear, the following is in conjunction with the accompanying drawings and embodiments. The present invention will be further described in detail. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0047] Embodiment of the damper:

 [0048] Referring to Figures 9 through 10, an embodiment of the damper of the present invention will now be described.

 [0049] The damper 10 of the present embodiment includes a first connecting member 11, a second connecting member 12, and a damper member 13, and further describes the components of the damper 10:

[0050] The first connecting member 11 is for fixing and connecting with a vibrating object that can provide vibration;

 [0051] The second connecting member 12 is configured to be connected to the vibration damping object that requires vibration damping protection, wherein the second connecting member 12 is spaced apart from the first connecting member 11;

 [0052] The vibration damper 13 is configured to attenuate the vibration force transmitted from the first connecting member 11 to the second connecting member 12, wherein the vibration damper 13 includes the first damper portion 131 and the second damper portion 132. And the third damper portion 133, the first damper portion 131 is connected to the first connecting member 11, the second damper portion 132 is connected to the second connecting member 12, and the third damper portion 133 is provided at the first damper portion 131 and The two damper portions 132 are connected to the first damper portion 131 and the second damper portion 132, respectively.

 [0053] The damper 10 of the present embodiment is mainly composed of the first connecting member 11, the second connecting member 12 and the damper member 13, and has a simple structure and convenient installation; and, by the structure of the damper member 13, the vibrating object The vibration force is transmitted to the first connecting member 11, and then the first damper portion 131, the third damper portion 133, and the second damper portion 132 are sequentially transmitted by the first connecting member 11, thereby mitigating the vibration step by step. The vibration force is transmitted to the second connecting member 12 and then transmitted to the damping object 吋 in the second damper portion 132, and the vibration force is reduced to a lower safety value, which does not cause vibration damage to the vibration damping object. Thereby achieving vibration damping protection for the vibration damping object.

 [0054] Referring to FIG. 9, a preferred embodiment of the present embodiment is that the vibration damping member 13 is provided with at least three, and the vibration reduction budget is considered, and the vibration reduction is preferably considered. There are three parts 13 . Of course, the vibration damper 13 can be set to four, five, etc. according to the actual situation, and this arrangement is also in the protection scope of the embodiment; 13 evenly spaced on the assembly consisting of the first connecting member 11 and the second connecting member 12, and by means of the three damping members 13, in addition to the vibrational force transmitted from the first connecting member 1 1 can be quickly and uniformly attenuated It is also better to avoid the vibration force gathering in one place and it is difficult to achieve the desired vibration damping effect.

Referring to FIG. 10 and FIG. 11, and in conjunction with FIG. 9, at least one of the three vibration dampers 13 is defined as a first vibration reduction. Specifically, the first damper 13a is defined as one; and the third damper 133 of the first damper 13a is inclined to the first damper portion 131 and the second damper portion 132, respectively. Connected, and the first damper member 13a is provided at an intermediate position of the assembly consisting of the first connecting member 11 and the second connecting member 12. In addition, the third damper 13b is defined as the second damper 13b except for the first damper 13a, and the third damper portion 133 of any of the second damper members 13b is respectively coupled to the first damper portion 131, The second damper portion 132 is vertically connected.

[0056] wherein, the vibration force transmitted from the first connecting member 11 can be regarded as a beam of energy waves, and the middle end of the beam energy wave is the main concentrated end of the energy, according to which, the first is set The damper 13a is configured to attenuate a large portion of the vibration force, and the third damper portion 133 of the first damper member 13a is obliquely connected to the first damper portion 131 and the second damper portion 132, respectively. In order to extend the attenuation distance, it can effectively attenuate a large part of the vibration force and ensure the vibration-damping protection of the vibration-damping object. Further, since the smaller portion of the vibration force is attenuated by the second damper 13b located on both sides of the first damper member 13a, the third damper portion 133 of the second damper member 13b is respectively the first The vertical connection of the damper portion 131 and the second damper portion 132 is sufficient to effectively attenuate a small portion of the vibration force, thereby ensuring the vibration damping protection of the vibration damping object, and at the same time, reducing the production cost of the vibrator 10.

 [0057] In order to effectively attenuate the vibration force to the first damper member and achieve the desired effect, the inclination of the third damper portion 133 of the first damper member 13a with respect to the first damper portion 131 of the first damper member 13a The angle is from 25 to 45, and preferably, the angle of inclination is 30 to facilitate manufacturing.

 [0058] Similarly, the angle of inclination of the third damper portion 133 of the first damper member 13a with respect to the second damper portion 1 32 of the first damper member 13a is 25°-45°, preferably, The angle of inclination is 30° for manufacturing.

 [0059] In addition, another embodiment of the vibration damping member 13 in the embodiment is that the vibration damping member 13 is a damping vibration damping rubber, and the damping vibration damping rubber is a vibration damping rubber, and the rubber is an ideal one. Damping material, damping damping technology is the use of rubber's unique viscoelasticity. During the vibration process, it causes intense internal friction under the action of external force, which produces a reaction force, converts kinetic energy into heat energy, and realizes energy conversion, thereby reducing vibration. The purpose of the frame.

 [0060] Further, the first connecting member 11 and the second connecting member 12 in the embodiment are both stainless steel sheets, wherein the stainless steel sheet itself has better elasticity and toughness, and can also transmit the vibration force. The effect of damping the vibration force greatly improves the overall damping effect of the damper 10.

[0061] Embodiment of the mobile hard disk box: Referring to FIG. 3 to FIG. 11, an embodiment of the mobile hard disk case of the present invention will be described below.

 [0063] The mobile hard disk cartridge 100 of the present embodiment is applied to an in-vehicle monitoring device, and includes at least two mechanical hard disks 20, a hard disk skeleton 30, a revolving door 40, a damper 10, and a profile frame 50. Hard disk box 1

The components of 00 are further explained:

[0064] at least two mechanical hard disks 20 are used to store data information;

 [0065] The hard disk frame 30 is provided for mounting at least two mechanical hard disks 20, wherein one side of the hard disk frame 30 is provided with a mounting slot 31 corresponding to the number of at least two mechanical hard disks 20 from top to bottom, specifically, A mounting slot 31 is disposed on a front side of the hard disk frame 30, and each mechanical hard disk 20 is disposed in each of the mounting slots 31;

 [0066] The revolving door 40 is configured to control at least two mechanical hard disks 20 to enter and exit corresponding at least two mounting slots 31, wherein the revolving door 40 is rotatably disposed on the front side end of the hard disk frame 30, and the cover is rotated Two mounting slots 3 1;

 [0067] The profile frame 50 is for covering the protective component, wherein the profile frame 50 is provided with a receiving cavity 51 for receiving the component, at least two mechanical hard disks 20, a hard disk frame 30, a revolving door 40 and a damper 10 All are accommodated in the accommodating chamber 5 1;

 [0068] The damper 10 is the damper 10 mentioned above, wherein the first connecting piece 11 of the damper 10 is connected to the profile frame 50 by screws, and the second connecting piece 12 of the damper 10 is connected by screws On the side end of the hard disk frame 30.

 Referring to the drawings, a preferred embodiment of the present embodiment is that the mechanical hard disk 20 is provided with two, which is sufficient for the use requirement, and avoids material waste and increases production cost.

 [0070] Correspondingly, the mounting slot 31 is correspondingly provided with two, and is defined as a first mounting slot 31a and a second mounting slot 31b. The first mounting slot 31a is located at the upper end of the hard disk frame 30, and the second mounting slot 31b is located at the hard disk frame. The lower end of the hard disk frame 30 is provided with a first cover 32 covering the first mounting groove 31a, and the lower end of the hard disk frame 30 is provided with a second cover 33 covering the second mounting groove 31b. The arrangement of the first cover 32 and the second cover 33 not only facilitates the protection of the mechanical hard disk 20, but also facilitates the viewing of the mechanical hard disk 20 in the mounting slot 31.

[0071] Referring to FIG. 4, another preferred embodiment of the present embodiment is that, further, the damper 10 is provided with two, and the two dampers 10 are disposed on the left and right sides of the hard disk frame 20, and are connected. The two end walls of the cavity 51 are accommodated to ensure the vibration damping effect of the mechanical hard disk 20 after being mounted on the hard disk frame 30. Referring to FIG. 7, a preferred embodiment of the revolving door 40 in this embodiment is that an elastic pressing member corresponding to the number of two mechanical hard disks 20 is disposed on a side of the revolving door 40 opposite to the mounting slot 31. 41. Each elastic pressing member 41 elastically presses each of the mechanical hard disks 20. Accordingly, when the revolving door 40 is closed, each of the elastic pressing members 41 elastically presses each of the mechanical hard disks 20 so that the mechanical hard disk 20 is stably set in the mounting groove 31 without any offset.

 [0073] In order to ensure the elastic force and elastic reliability of the elastic pressing member 41, the elastic pressing member 41 is an elastic steel sheet, and the elastic steel sheet includes at least one contact surface 42 in contact with the mechanical hard disk 20, It is ensured that it can be in close contact with the mechanical hard disk 20; in addition, the contact surface 42 is inclined with respect to the revolving door 40.

 Referring to FIG. 3 and FIG. 4, another preferred embodiment of the present embodiment is that the mobile hard disk case 100 further includes a front door assembly 61 disposed on the profile frame 50 and covering the front end of the accommodating cavity 51, and The rear cover 62 of the front end of the front end of the accommodating cavity 51 is provided on the profile frame 50, and the front door assembly 61 and the rear cover 62 are disposed to ensure the protection of the components disposed in the accommodating cavity 51. .

 [0075] Similarly, the mobile hard disk cartridge 100 further includes a USB signal transfer board 70 to ensure the transfer and transfer of data information of the two mechanical hard disks 20. Specifically, the rear cover 62 is mainly composed of a first plate member 622 and a second plate member 623. The first plate member 622 is perpendicularly connected to the second plate member 623, and the USB signal adapter plate 70 is disposed on the rear cover plate 62. The lower end is specifically disposed on the second board 623 of the rear cover 62 and connected to the two mechanical hard disks 20 through a SATA flexible connecting line 80. Preferably, the SATA flexible connecting line 80 is better fixed. The SA TA flexible connecting cable 80 is fixed on the first cover 32 by a screw connection; the USB signal adapter plate 70 is provided with a connector 71 for connecting with the host, and the rear cover 62 is provided with a mouth 621, specifically The port 621 is disposed on the first plate 622, and the connector 71 is disposed opposite the port 621.

 [0076] Thus, the data information transmission process of the two mechanical hard disks 20 is: the data information of the two mechanical hard disks 20 is first transferred to the USB signal transfer board 70 through the SATA flexible connection line 80, and then through the connector. 71 is connected to the host.

Referring to FIG. 4, another preferred embodiment of the embodiment is that, further, the mobile hard disk cartridge 100 further includes a rear fence 90 for avoiding collision contact between the hard disk frame 30 and the rear cover 62, The blocking piece 90 is disposed on the side end of the hard disk frame 30 and faces the rear cover plate 62. By the rear blocking piece 90, even if the rear cover plate 62 is collided, the force generated is transmitted to the hard disk frame 30. It is necessary to pass through the rear flap 90, and the rear flap 90 can attenuate the force buffer after being subjected to the force, thereby causing the function to be transmitted to the hard disk frame 30. The force becomes smaller, which is advantageous for protecting the mechanical hard disk 20 provided on the hard disk frame 30.

[0078] In order to further ensure the collision contact between the hard disk frame 30 and the rear cover 62, two rear flaps 90 are provided, and the two rear blocking pieces 90 are disposed on both sides of the side end of the hard disk frame 30.

[0079] Embodiment of the vehicle monitoring device:

 [0080] Referring to FIG. 1 to FIG. 11, an embodiment of the in-vehicle monitoring device of the present invention will be described below.

The vehicle-mounted monitoring device 1000 of the present embodiment is mainly applied to a mobile vehicle such as a bus, a bus, a school bus, a police car, a dangerous goods vehicle, a rail transit locomotive, etc., and includes a main body box 200 and a power module 300. The NVR main module 400, the switch module 500, and the above-mentioned mobile hard disk box 100 are configured. The power module 300, the NVR main module 400, the switch module 500, and the mobile hard disk box 100 are all disposed on the main chassis 200. Since the in-vehicle monitoring device 1000 has the above-described mobile hard disk case 100, the stability and reliability of the in-vehicle monitoring device 1000 can be greatly improved.

The above description is only the preferred embodiment of the present invention, and the configuration is not limited to the above-listed shapes, and any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should be It is included in the scope of protection of the present invention.

Claims

Claim The damper is characterized in that it comprises: a first connector for attaching to a vibrating object that can provide vibration; a second connecting member for connecting to the vibration damping object requiring vibration protection protection, wherein the second connecting member is spaced apart from the first connecting member; and a vibration damping member for attenuating a vibration force transmitted from the first connecting member to the second connecting member, the vibration damping member including a first vibration damping portion, a second vibration damping portion, and a third vibration damping The first damper portion is connected to the first connecting member, the second damper portion is connected to the second connecting member, and the third damper portion is disposed at the first damper portion and the The second damper portions are connected to the first damper portion and the second damper portion, respectively. The damper according to claim 1, wherein: said vibration damping member is provided with at least three The at least three of the damper members are evenly spaced apart from the assembly of the first connector and the second connector. The damper according to claim 2, wherein: at least one of the at least three of the damper members is defined as a first damper member, and the third damper portion of the first damper member Separatingly connected to the first damper portion and the second damper portion, respectively, and the first damper member is disposed at an intermediate position of the component composed of the first connecting member and the second connecting member At least three of the damper members are defined as a second damper member except the first damper member, and the third damper portion of any one of the second damper members is respectively The first damper portion and the second damper portion are vertically connected. The damper according to claim 3, wherein: an inclination angle of the third damper portion of the first damper member with respect to the first damper portion of the first damper member The angle of inclination of the third damper portion of the first damper member with respect to the second damper portion of the first damper member is 25° to 45°. The damper according to any one of claims 1 to 4, wherein the damper member is a damping rubber. The damper according to any one of claims 1 to 4, wherein: the first connecting member and the second connecting member are both stainless steel sheets. a mobile hard disk box, comprising: at least two mechanical hard disks, a hard disk skeleton, a revolving door, the damper and the profile frame according to any one of claims 1-6; One side of the hard disk frame is provided with a mounting slot corresponding to the number of the at least two mechanical hard disks from top to bottom, and each of the mechanical hard disks is disposed in each of the mounting slots; The revolving door is rotatably disposed on a side end of the hard disk frame, and is rotatable to cover the at least two mounting slots; The profile frame is provided with a receiving cavity for receiving the component, and at least two of the mechanical hard disk, the hard disk frame, the revolving door and the damper are accommodated in the accommodating cavity; The first connecting member of the damper is connected to the profile frame, and the second connecting member of the damper is connected to the side end of the hard disk frame. The mobile hard disk box according to claim 7, wherein: the mechanical hard disk is provided with two. The mounting slot is correspondingly provided with two, and is defined as a first mounting slot and a second mounting slot. The first mounting slot is located at an upper end of the hard disk frame, and the second mounting slot is located at a lower end of the hard disk frame. ; The upper end of the hard disk frame is provided with a first cover plate covering the first mounting groove, and the lower end of the hard disk frame is provided with a second cover plate covering the second mounting groove. The mobile hard disk box according to claim 7, wherein: the damper is provided with two, and the two dampers are disposed on two sides of the hard disk frame and connected to the accommodating device. End walls on both sides of the cavity. The mobile hard disk box according to claim 7, wherein: a side of the revolving door facing the mounting slot is provided with an elastic pressing member corresponding to the number of the at least two mechanical hard disks, each of the The elastic abutting member elastically presses against each of the mechanical hard disks. The mobile hard disk case according to claim 10, wherein: the elastic pressing member is an elastic steel piece, and the elastic steel piece includes at least one contact surface in contact with the mechanical hard disk, the contact surface phase The revolving door is tilted. The mobile hard disk case according to any one of claims 7 to 11, further comprising a front door assembly provided on the profile frame and covering a front end of the accommodating cavity, and And closing a rear cover of the material frame with respect to a rear end of the front end of the accommodating cavity. [Claim 13] The mobile hard disk case according to claim 12, further comprising: a USB signal transfer board, wherein the USB signal transfer board is disposed at a lower end of the rear cover and through a flexible connection The wire is connected to at least two of the mechanical hard disks, and the USB signal transfer board is provided with a connector for connecting to the host, and the rear cover is provided with a mouthpiece, and the connector is opposite to the mouthpiece Settings.  [Claim 14] The mobile hard disk case according to claim 12, further comprising: a rear blocking piece for avoiding collision contact between the hard disk frame and the rear cover, the rear blocking piece And facing the rear cover on the side end of the hard disk frame.  [Claim 15] The mobile hard disk case according to claim 14, wherein: the rear flap is provided with two, and the two rear flaps are disposed on two sides of the side end of the hard disk frame.  [Claim 16] The in-vehicle monitoring device, comprising: the mobile hard disk case according to any one of claims 7-15.