CN109883463B - Heavy-duty vehicle diagnostic instrument - Google Patents
Heavy-duty vehicle diagnostic instrument Download PDFInfo
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- CN109883463B CN109883463B CN201910176149.8A CN201910176149A CN109883463B CN 109883463 B CN109883463 B CN 109883463B CN 201910176149 A CN201910176149 A CN 201910176149A CN 109883463 B CN109883463 B CN 109883463B
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Abstract
The invention relates to a heavy-duty vehicle diagnostic instrument, which belongs to the technical field of vehicle detection instruments and has the technical scheme key points that: comprises a shell; a portable plate which is detachably arranged at the back of the shell and has an arc-shaped section; the portable protective case comprises a portable plate and protective cases which are arranged on the sides of the portable plate in a half-wrapped mode, wherein the two outer sides of each of the housings are provided with accommodating grooves which are perpendicular to the extending direction of the portable plate, moving blocks are accommodated in the accommodating grooves in a sliding mode, positioning assemblies used for limiting the sliding of the protective cases are arranged on the moving blocks, one sides, far away from the positioning assemblies, of the housings are provided with grooves, and limiting assemblies used for limiting the protective cases are arranged in the grooves. When the diagnosis instrument for the heavy-duty vehicle is used, the protection shell can be conveniently mounted and dismounted, so that unnecessary troubles of workers can be reduced, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of vehicle detection instruments, in particular to a heavy-load vehicle diagnostic instrument.
Background
The vehicle diagnostic instrument is a special instrument specially for automobile detection, can detect the performance of a vehicle in real time and detect vehicle faults, and is a necessary tool for detecting the vehicle.
At present, the conventional vehicle diagnostic apparatus mainly includes an internal circuit board, components mounted on the circuit board, and a casing wrapping the circuit board, and meanwhile, thicker protective cases (plastic cases or rubber cases) are usually mounted on both sides of the casing, and the casing can be protected by the protective cases.
However, at the in-process of actual installation lag, firstly half parcel of protective housing is in the both sides of casing, then squeeze into the preset screw of protective housing through the screw in to install the both sides at the casing with the protective housing, the process of this kind of mounting means is generally more troublesome, need consume more time and energy, if the work load of installation or change is great, must be increasing staff's fatigue and the amount of labour, then influence work efficiency.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a heavy-duty vehicle diagnostic instrument which can conveniently realize the installation and the disassembly of a protective shell, thereby reducing the unnecessary trouble of workers and improving the working efficiency.
The above object of the present invention is achieved by the following technical solutions:
a heavy-duty vehicle diagnostic instrument comprising: a housing; a portable plate which is detachably arranged at the back of the shell and has an arc-shaped section; the portable protective case comprises a portable plate and protective cases which are arranged on the sides of the portable plate in a half-wrapped mode, wherein the two outer sides of each of the housings are provided with accommodating grooves which are perpendicular to the extending direction of the portable plate, moving blocks are accommodated in the accommodating grooves in a sliding mode, positioning assemblies used for limiting the sliding of the protective cases are arranged on the moving blocks, one sides, far away from the positioning assemblies, of the housings are provided with grooves, and limiting assemblies used for limiting the protective cases are arranged in the grooves.
Adopt above-mentioned technical scheme, through set up the movable block in the holding tank, set up locating component on the movable block, when needs installation protecting crust, can make relevant position on the protecting crust corresponding with locating component, utilize locating component to play preliminary limiting action to the protecting crust, and the spacing subassembly that sets up, can play further restriction to the protecting crust, make the protecting crust can be established in the both sides of casing very firmly and convenient cover, through the above-mentioned scheme, alright with the installation and the dismantlement of very convenient realization protecting crust, thereby can reduce staff's unnecessary trouble, improve work efficiency.
The invention is further configured such that the positioning assembly comprises: the containing cavity is formed in the moving block, and the opening direction of the containing cavity is perpendicular to the extending direction of the containing groove; the positioning block is movably arranged in the accommodating cavity and has a triangular section; and the driving spring is arranged in the accommodating cavity and used for driving the positioning block to stretch, and a positioning groove matched with the positioning block is arranged at the corresponding position on the inner side of the protective shell.
Adopt above-mentioned technical scheme, when the protecting crust corresponded with the locating piece, the drive spring of setting can utilize the restoring force of self, and automatic drive locating piece goes the gomphosis with the constant head tank each other to on the preset position of the preliminary restriction casing of protecting crust, and set the cross-section of locating piece to triangle-shaped, make constant head tank on the protecting crust can be smooth and easy with the gomphosis of locating piece mutually, simultaneously, be difficult to the back slip again, further reduced the arbitrary gliding condition of protecting crust.
The invention is further configured such that the limiting assembly comprises: a limiting block movably accommodated in the groove; the first spring is arranged in the groove and used for driving the limiting block to stretch; a limiting groove which is arranged at the inner side of the protective shell and corresponds to the position of the limiting block; and the first reset piece is arranged on the shell and used for driving the limiting block to reset.
Adopt above-mentioned technical scheme, play preliminary location back when the locating component to the protecting crust for spacing groove on the protecting crust aligns each other with the stopper on the casing, and the first spring that sets up can utilize the restoring force of self, and automatic drive stopper and the mutual gomphosis of spacing groove, thereby fix the protecting crust on the casing outer wall, this structure easy operation easily realizes.
The invention is further configured such that the first reset member comprises: a strip-shaped through hole communicated with the groove is formed in the outer side of the shell; and one end of the shifting block is fixed with the limiting block, and the other end of the shifting block penetrates out of the strip-shaped through opening.
By adopting the technical scheme, when the limitation of the limiting block on the protective shell needs to be relieved, the shifting block can be stirred by utilizing the shifting block, so that the shifting block moves along the strip-shaped through opening, and the shifting block can be separated from the limiting block and the limiting groove in a moving process, so that the limitation on the protective shell is relieved very conveniently.
The invention is further configured such that the limiting assembly comprises: the article holding groove is arranged on the outer side of the shell; the clamping block is hinged on the inner wall of the storage groove; the clamping groove is formed on the inner side of the protective shell and is embedded with the clamping block; the second spring is arranged in the article placing groove and used for driving the clamping block to rotate so as to enable the clamping block and the clamping groove to be mutually embedded; and the second reset piece is arranged on the shell and used for driving the clamping block to rotate and accommodating the clamping block into the object accommodating groove.
Adopt above-mentioned technical scheme, it is same, play preliminary location back when locating component to the protecting crust for the draw-in groove on the protecting crust aligns each other with the thing groove of putting on the casing, utilizes the second piece that resets, alright in order to remove the restriction to the fixture block, makes the second spring can drive the fixture block rotatory, the fixture block alright with the draw-in groove looks gomphosis on the protecting crust, through this scheme, can be very convenient on the preset position with the protecting crust restriction on the casing equally.
The invention is further configured such that the second reset element comprises: a rotating rod with one end horizontally inserted in the shell and the object placing groove and the other end penetrating out of the shell; and the torsion cover is arranged at the end part of the rotary rod penetrating out, and the clamping block is fixed on the outer wall of the rotary rod in the storage groove.
By adopting the technical scheme, when the limitation on the protective shell is removed, the rotary cover can be rotated to drive the rotary rod to rotate, the rotary rod can drive the clamping block to rotate in the rotating process, so that the clamping block can be conveniently rotated out of the clamping groove, then the limitation on the protective shell can be removed, and the structural design is exquisite and easy to realize.
The invention is further provided with a return spring which is horizontally arranged in the accommodating groove and is used for driving the moving block to move towards the direction far away from the groove.
By adopting the technical scheme and the reset spring, the protective shell can apply force far away from the groove direction to the moving block under the limitation of the positioning assembly and the limiting assembly, so that the pulling force between the protective shell and the shell can be further increased, and the shell can be more firmly installed.
The protective shell is further provided with a track which is sunken into the protective shell along the extension direction of the accommodating groove, and the outer side of the shell is provided with a convex edge matched with the track.
Adopt above-mentioned technical scheme, the bead that sets up can match each other with the track for the protecting crust is establishing the in-process of installation at the cover, and the bead can slide along predetermined track, thereby can increase the accuracy of protecting crust installation, makes that the protecting crust can be quick and accurate by the installation, simultaneously, can also improve the protecting crust and slide in-process stability along the casing, reduces its condition of rocking or becoming flexible.
The positioning device is further provided with positioning blocks and positioning grooves, wherein the sections of the positioning blocks and the positioning grooves are arranged in an L shape.
By adopting the technical scheme, the contact area between the positioning block and the positioning groove can be increased, and then the static friction force between the positioning block and the positioning groove is increased, so that the protective shell can be more firmly arranged on the preset position of the shell.
The invention is further provided with supporting pieces for supporting the shell, wherein the supporting pieces are arranged at four corners of the shell.
By adopting the technical scheme, the supporting piece can support and bear the shell, the contact condition between the shell and the desktop or the ground is reduced, the influence of external impurity dust or water on the shell can be reduced, and meanwhile, the placing stability of the shell can be improved.
In conclusion, the invention has the following beneficial effects:
the positioning assembly is arranged on the positioning block, the limiting assembly is arranged on the other side of the shell, the positioning assembly can be used for positioning the position of the protective shell, so that the protective shell is attached to the preset position of the shell, and the limiting assembly can be used for limiting the protective shell after the protective shell is positioned, so that the protective shell is firmly arranged on the preset position of the shell; and the reset spring who sets up then can further cooperate locating component and spacing subassembly, can further reduce the not hard up condition of protective housing appearance, through above-mentioned scheme, alright with the installation and the dismantlement of very convenient realization protective housing to can reduce staff's unnecessary trouble, improve work efficiency.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
FIG. 2 is a sectional view of the housing and the shield case in embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of a position limiting assembly in embodiment 2 of the present invention;
fig. 4 is a schematic view showing the position of the second spring in embodiment 2 of the present invention.
Reference numerals: 1. a housing; 11. a carrying board; 2. a protective shell; 21. positioning a groove; 22. a limiting groove; 23. a card slot; 3. accommodating grooves; 31. a moving block; 32. an accommodating chamber; 33. positioning blocks; 34. a drive spring; 35. a return spring; 36. a track; 37. a rib; 4. a groove; 41. a limiting block; 42. a first spring; 43. a strip-shaped through opening; 44. shifting blocks; 5. a storage groove; 51. a clamping block; 52. a second spring; 53. a rotating rod; 54. twisting a cover; 6. a bump; 61. a support block; 62. inserting a rod; 63. and a limiting nut.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1: the utility model provides a heavy vehicle diagnostic device, as shown in fig. 1 and 2, including the circuit board, install the components and parts on the circuit board, and wrap up casing 1 outside circuit board and components and parts, install portable board 11 at casing 1's back, and portable board 11's cross-section is the arc form, it has protecting crust 2 to wrap up in portable board 11's both ends casing side half, protecting crust 2 adopts plastics or rubber material to make, protecting crust 2 can play certain guard action to casing 1's both sides, can reduce the external circumstances of colliding with, thereby can prolong casing 1's life.
In this embodiment, the positioning assembly includes: the containing cavity 32 is formed in the moving block 31, the opening direction of the containing cavity 32 is perpendicular to the extending direction of the containing groove 3, a positioning block 33 is movably arranged in the containing cavity 32, the cross section of the positioning block 33 is triangular, the inclined surface of the positioning block 33 inclines towards one side of the limiting component, a driving spring 34 is installed on the bottom wall of the containing cavity 32, one end, far away from the containing cavity 32, of the driving spring 34 is fixed with the inner end of the positioning block 33, a positioning groove 21 is formed in the corresponding position of the inner side of the protective shell 2, and the positioning groove 21 is matched with the positioning block 33.
When needs are fixed a position protecting shell 2, can be earlier with protecting shell 2 and the both sides limit alignment of casing 1, remove protecting shell 2, make protecting shell 2 can slide along the surface of casing 1, when constant head tank 21 on protecting shell 2 aligns with locating piece 33, the drive spring 34 of setting can utilize the restoring force of self, automatic drive locating piece 33 pops out from holding the intracavity 32, make locating piece 33 insert in the constant head tank 21 of protecting shell 2, thereby play preliminary positioning action to protecting shell 2.
In this embodiment, the spacing subassembly includes: the activity holds stopper 41 in recess 4, installs first spring 42 at the diapire of recess 4, and the one end that 4 diapires of recess were kept away from to first spring 42 is fixed mutually with stopper 41's inner, has seted up spacing groove 22 in the inboard of protecting crust 2, and spacing groove 22 can with stopper 41 gomphosis each other, simultaneously, still is provided with the first piece that resets on casing 1, the first piece that resets can drive stopper 41 and contract to the recess 4 in.
When the locating piece 33 plays preliminary location to protecting crust 2, can slide protecting crust 2, make protecting crust 2 move back towards the direction of recess 4, at this moment, protecting crust 2 is at the in-process that removes, can drive reset spring 35 stay cord, when spacing groove 22 on protecting crust 2 slides to the position of lining up each other with stopper 41, the drive stopper 41 that first spring 42 that sets up can be automatic pops out and inserts in spacing groove 22 from recess 4, meanwhile, reset spring 35 that sets up can utilize the restoring force of self, apply the power of keeping away from recess 4 to protecting crust 2, design through above-mentioned scheme, can be very convenient and firm fix protecting crust 2 on the preset position of casing 1.
In this embodiment, the first restoring member includes: the strip-shaped through hole 43 is formed in the outer side of the shell 1 and communicated with the groove 4, the extending direction of the strip-shaped through hole 43 is consistent with the opening direction of the groove 4, and a shifting block 44 is movably inserted into the strip-shaped through hole 43, wherein one end of the shifting block is fixed with the limiting block 41, and the other end of the shifting block penetrates through the strip-shaped through hole 43.
When the limitation to the protective shell 2 needs to be removed, the shifting block 44 can be shifted, so that the shifting block 44 moves along the strip-shaped through hole 43, the shifting block 44 can drive the limiting block 41 to be separated from the limiting groove 22 in the moving process, and the limitation to the protective shell 2 is conveniently removed.
In addition, the cross-section of locating piece 33 and constant head tank 21 in this embodiment all is the setting of L shape, and locating piece 33 and the constant head tank 21 that the L shape set up can increase the area of contact of locating piece 33 and constant head tank 21 when protective housing 2 is tentatively restricted, then increase the static friction between the two for protective housing 2 can be more firm install on the predetermined position of casing 1.
Wherein, set up on protective housing 2 surface to the inside sunken track 36 of protective housing 2, the extending direction of track 36 is unanimous with the extending direction of holding tank 3, and be provided with bead 37 in the outside of casing 1, bead 37 can match each other with track 36, and when protective housing 2 establishes the in-process of installation at the cover, bead 37 can slide along predetermined track 36 to can increase the accuracy of protective housing 2 installation, make protective housing 2 can be fast and accurate by the installation.
At the bottom four corners of casing 1 all install support piece, in this embodiment, support piece includes: the device comprises symmetrical lugs 6 fixed at four corners of the bottom of the shell 1, supporting blocks 61 positioned between the symmetrical lugs 6, and an inserted rod 62 inserted between the lugs 6 and the supporting blocks 61, wherein the end part of the inserted rod 62 is in threaded connection with a limit nut 63.
Supporting shoe 61 that sets up can support casing 1 and bear, reduces the condition that casing 1 and desktop or ground contacted, thereby can reduce the influence that external impurity dust or water caused casing 1, when rotatory stop nut 63, then can drive supporting shoe 61 rotatory, when supporting shoe 61 rotates suitable position, can turn round stop nut 63, through this scheme, alright with the angle of effectual regulation supporting shoe 61, and then adjust the height that the casing was supported.
Example 2: as shown in fig. 3 and 4, the difference from embodiment 1 is in the difference of the position limiting assembly, in this embodiment, the position limiting assembly includes: the article placing groove 5 is formed in the outer side of the shell 1, a clamping block 51 is hinged between the inner walls of the article placing groove 5, a clamping groove 23 corresponding to the clamping block 51 is formed in the inner side of the protective shell 2, a second spring 52 is further installed in the article placing groove 5, and one end, far away from the article placing groove 5, of the second spring 52 is fixed to the outer portion of the clamping block 51, so that the second spring 52 can automatically drive the clamping block 51 to rotate by utilizing the elastic force of the second spring 52; in addition, a second reset piece is further installed on the housing 1, and the second reset piece can drive the fixture block 51 to rotate, so that the fixture block 51 rotates into the storage slot 5.
When the locating piece 33 plays preliminary location to protecting crust 2, slip protecting crust 2 for draw-in groove 23 on the protecting crust 2 is corresponding with the position of putting thing groove 5, and fixture block 51 can be under the elastic force effect of second spring 52, and automatic drive fixture block 51 is rotatory, makes fixture block 51 rotatory to with draw-in groove 23 gomphosis each other, utilizes this scheme, equally can be very convenient fix protecting crust 2 on the preset position of casing 1.
In this embodiment, the second reset piece includes: one end of the rotating rod 53 horizontally penetrates into the shell 1 and the object placing groove 5, the other end of the rotating rod 53 penetrates out of the shell 1, a twist cover 54 is installed at the penetrating end part of the rotating rod 53, and the fixture block 51 is fixed on the outer wall of the rotating rod 53 in the object placing groove 5.
When the limitation to the protective shell 2 needs to be removed, the rotating rod 53 can be driven to rotate by rotating the torsion cover 54, the rotating rod 53 can drive the fixture block 51 to rotate in the rotating process, so that the fixture block 51 can be conveniently rotated out of the clamping groove 23, then the limitation to the protective shell 2 can be removed, and the protective shell 2 can be conveniently slid off the shell 1.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment as necessary without making a contribution thereto after reading the present specification, but all are protected by patent laws within the scope of the claims of the present invention.
Claims (9)
1. A heavy-duty vehicle diagnostic apparatus, comprising: a housing (1);
a portable plate (11) which is detachably arranged at the back of the shell (1) and has an arc-shaped section;
the protective shell (2) is arranged on the side edges of the shell (1) and is half-wrapped at two ends of the portable plate (11), accommodating grooves (3) with the extending direction perpendicular to the extending direction of the portable plate (11) are formed in two outer sides of the shell (1), moving blocks (31) are accommodated in the accommodating grooves (3) in a sliding mode, positioning components used for limiting the sliding of the protective shell (2) are arranged on the moving blocks (31), a groove (4) is formed in one side, far away from the positioning components, of the shell (1), and limiting components used for limiting the protective shell (2) are arranged in the groove (4);
the positioning assembly comprises: an accommodating cavity (32) which is arranged on the moving block (31) and the opening direction of which is vertical to the extending direction of the accommodating cavity (3); a positioning block (33) which is movably arranged in the accommodating cavity (32) and has a triangular section; and the driving spring (34) is arranged in the accommodating cavity (32) and used for driving the positioning block (33) to stretch, and the corresponding position on the inner side of the protective shell (2) is provided with a positioning groove (21) matched with the positioning block (33).
2. The heavy-duty vehicle diagnostic instrument of claim 1, wherein said limit stop assembly comprises: a limiting block (41) movably accommodated in the groove (4); a first spring (42) which is arranged in the groove (4) and used for driving the limiting block (41) to stretch and retract; a limiting groove (22) which is arranged at the inner side of the protective shell (2) and corresponds to the position of the limiting block (41); and a first reset piece arranged on the shell (1) and used for driving the limiting block (41) to reset.
3. The heavy-duty vehicle diagnostic instrument of claim 2, wherein said first reset member comprises: a strip-shaped through hole (43) which is arranged on the outer side of the shell (1) and is communicated with the groove (4); and a shifting block (44) with one end fixed with the limiting block (41) and the other end penetrating through the strip-shaped through hole (43).
4. The heavy-duty vehicle diagnostic instrument of claim 1, wherein said limit stop assembly comprises: a clamping block (51) hinged on the inner wall of the groove (4); a clamping groove (23) which is arranged on the inner side of the protective shell (2) and is embedded with the clamping block (51); the second spring (52) is arranged in the groove (4) and used for driving the fixture block (51) to rotate so as to enable the fixture block (51) and the clamping groove (23) to be mutually embedded; and the second resetting piece is arranged on the shell (1) and used for driving the clamping block (51) to rotate and is accommodated in the groove (4).
5. The heavy-duty vehicle diagnostic instrument of claim 4, wherein said second reset member comprises: a rotating rod (53) with one end horizontally inserted in the shell (1) and the groove (4) and the other end penetrating through the shell (1); and a twist cover (54) arranged at the end part of the rotating rod (53) penetrating out, wherein the clamping block (51) is fixed on the outer wall of the rotating rod (53) positioned in the groove (4).
6. The heavy-duty vehicle diagnostic instrument according to claim 1, wherein a return spring (35) for driving the moving block (31) to move in a direction away from the groove (4) is horizontally installed in the housing groove (3).
7. The heavy-duty vehicle diagnostic instrument according to claim 1, wherein the protective shell (2) is provided with a track (36) recessed into the protective shell (2) along the extending direction of the accommodating groove (3), and the outer side of the shell (1) is provided with a convex rib (37) matched with the track (36).
8. The heavy-duty vehicle diagnostic instrument according to claim 1, wherein the positioning block (33) and the positioning groove (21) are arranged in an L-shaped cross section.
9. The heavy-duty vehicle diagnostic instrument according to claim 1, wherein a support member for supporting the housing (1) is installed at each of four corners of the housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910176149.8A CN109883463B (en) | 2019-03-08 | 2019-03-08 | Heavy-duty vehicle diagnostic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910176149.8A CN109883463B (en) | 2019-03-08 | 2019-03-08 | Heavy-duty vehicle diagnostic instrument |
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| Publication Number | Publication Date |
|---|---|
| CN109883463A CN109883463A (en) | 2019-06-14 |
| CN109883463B true CN109883463B (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910176149.8A Active CN109883463B (en) | 2019-03-08 | 2019-03-08 | Heavy-duty vehicle diagnostic instrument |
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| US6178085B1 (en) * | 1998-04-27 | 2001-01-23 | Ccl Products Enterprises, Inc. | Calculator lid mechanism |
| CN102421569A (en) * | 2009-05-11 | 2012-04-18 | 罗伯特·博世有限公司 | Hand-held power tool, in particular electric hand-held power tool |
| CN205642412U (en) * | 2016-05-10 | 2016-10-12 | 上海电仪仪器仪表有限公司 | Wear -resisting instrument |
| CN206235927U (en) * | 2016-10-12 | 2017-06-09 | 深圳市福伦达精工技术有限公司 | A kind of vehicle-mounted flat shell |
| CN207066471U (en) * | 2017-07-13 | 2018-03-02 | 天津海控科技有限公司 | Instrument with supervising device |
| CN207067850U (en) * | 2017-05-23 | 2018-03-02 | 深圳市志腾永盛科技有限公司 | It is a kind of to adjust the portable tablet personal computer easily used manually |
| CN207164253U (en) * | 2017-09-11 | 2018-03-30 | 北京中航天泰科技有限公司 | A kind of portable navigation system using Beidou satellite navigation system |
-
2019
- 2019-03-08 CN CN201910176149.8A patent/CN109883463B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6178085B1 (en) * | 1998-04-27 | 2001-01-23 | Ccl Products Enterprises, Inc. | Calculator lid mechanism |
| CN102421569A (en) * | 2009-05-11 | 2012-04-18 | 罗伯特·博世有限公司 | Hand-held power tool, in particular electric hand-held power tool |
| CN205642412U (en) * | 2016-05-10 | 2016-10-12 | 上海电仪仪器仪表有限公司 | Wear -resisting instrument |
| CN206235927U (en) * | 2016-10-12 | 2017-06-09 | 深圳市福伦达精工技术有限公司 | A kind of vehicle-mounted flat shell |
| CN207067850U (en) * | 2017-05-23 | 2018-03-02 | 深圳市志腾永盛科技有限公司 | It is a kind of to adjust the portable tablet personal computer easily used manually |
| CN207066471U (en) * | 2017-07-13 | 2018-03-02 | 天津海控科技有限公司 | Instrument with supervising device |
| CN207164253U (en) * | 2017-09-11 | 2018-03-30 | 北京中航天泰科技有限公司 | A kind of portable navigation system using Beidou satellite navigation system |
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|---|---|
| CN109883463A (en) | 2019-06-14 |
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