CN102889284A - Sheet metal component assembling structure for vehicle - Google Patents
Sheet metal component assembling structure for vehicle Download PDFInfo
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- CN102889284A CN102889284A CN2012103960032A CN201210396003A CN102889284A CN 102889284 A CN102889284 A CN 102889284A CN 2012103960032 A CN2012103960032 A CN 2012103960032A CN 201210396003 A CN201210396003 A CN 201210396003A CN 102889284 A CN102889284 A CN 102889284A
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Abstract
The invention discloses a sheet metal component assembling structure for a vehicle. The sheet metal component assembling structure comprises a first sheet metal component (5), a second sheet metal component (6), a fastening connection component and a locating plate (7), wherein the fastening connection component consists of a connection rod (1) with an end socket (1a), a return spring (2), a limiting pin (3) and a flat cushion (4); after the lower part of the connection rod (1) and the limiting pin (3) pass through a first profile hole (5c) in the first sheet metal component (5), the lower part of the connection rod (1) and the limiting pin (3) are rotated for a certain angle along anti-clockwise direction, then pass through a third round hole (6a) in the second sheet metal component and a second profile hole (7c) of the locating plate (7), and are rotated for a certain angle along clockwise direction until the two ends of the limiting pin (3) respectively fall into two locking tanks (7f). The structure has the characteristics that the manufacturing cost is low, the dismounting does not need tools and is convenient and quick, the connection is firm and reliable, and the secondary mounting and dismounting are completely not affected.
Description
The skill technical field
The present invention relates to automobile-used sheet metal part, be specifically related to the assembly structure of automobile-used sheet metal part.
Background technique
A large amount of sheet metal parts is arranged on motorcycle and the automobile, the mode that bolt and nut component connects is adopted in the at present connection of this class part usually, as shown in Figure 9, on two sheet metal parts bolt through-hole is set respectively, bolt 8 tightens together two sheet metal parts in conjunction with nut 9 after passing two sheet metal parts.Main Problems is: after (1) bolt and nut dismounting, nut easily falls: (2) are limited by the mounting point as shown in figure 10, often nut 9 need to be welded on wherein on the sheet metal part, and nut 9 is project-welding nut, has increased assembly technology; (3) during bolton, often by pneumatic or electronic urgent with special tools such as sleeves, because power tool torsion is large, exodontia often appears in bolt, draw the by force urgent phenomenon such as silk, and maintenance brings very large inconvenience to secondary; (4) for the choosing dress part of the normal dismounting such as shelf, limit case, the user needs often dismounting, and the user generally selects bayonet spanner, and bayonet spanner be easy to the to wear and tear seamed edge of hexagon head causes the dismounting difficulty, until damage.
Summary of the invention
The present invention aims to provide a kind of quick and easy for installation, firm and reliable connection, secondary loads and unloads impregnable automobile-used sheet metal part assembly structure, and does not need and will be fastenedly connected components apart, the situation that therefore can not cause part to lose during dismounting.
For this reason, a kind of automobile-used sheet metal part assembly structure provided by the invention, comprise the first sheet metal part (5) and the second sheet metal part (6), key is: also comprise being fastenedly connected assembly and positioning plate (7), the described assembly that is fastenedly connected is comprised of connecting rod (1), return spring (2), position-limitting pin (3) and the plain cushion (4) of belt end (1a), and described positioning plate (7) is welded on the side that described the second sheet metal part (6) deviates from the first sheet metal part (5); Bar subordinate end at described connecting rod (1) is provided with pin via hole (1b), described position-limitting pin (3) is inserted in the pin via hole (1b) and with connecting rod (1) and is fixed together, the intersect vertical axis of the axis of position-limitting pin (3) and connecting rod (1), the length of position-limitting pin (3) is greater than the bar section diameter of connecting rod (1), the two ends of position-limitting pin (3) all reaches outside the pin via hole (1b), described return spring (2), plain cushion (4), the first sheet metal part (5), the second sheet metal part (6) and positioning plate (7) are sleeved between the termination (1a) and position-limitting pin (3) of connecting rod (1) successively, and return spring (2) is in compressive state;
(5) arrange the first strip hole (5a) that just passes through for position-limitting pin (3), the first circular hole (5b) that supplies connecting rod (1) bar section just to pass through on described the first sheet metal part, and the center superposition of the center of the first strip hole (5a) and the first circular hole (5b) consists of the first irregularly-shaped hole (5c); Have the second circular hole (6a) that just passes through for position-limitting pin (3) at the second sheet metal part (6); In positioning plate (7) upper punch the second irregularly-shaped hole (7c) is arranged, the second irregularly-shaped hole (7c) is identical with the first irregularly-shaped hole (5c) shape, the position is corresponding, and the angle of the bearing of trend of the bearing of trend of second strip hole (7a) of the second irregularly-shaped hole (7c) and first strip hole (5a) of the first irregularly-shaped hole (5c) is α, a side that deviates from the second sheet metal part (6) at positioning plate (7), edge along the second irregularly-shaped hole (7c) two long limits is provided with the first spacing preiection (7d) and the second spacing preiection (7e), the middle part of the first spacing preiection (7d) and the second spacing preiection (7e) is lower than two ends, consist of consistent two clamping slots (7f) of bearing of trend, the angle of the bearing of trend of the second strip hole (7a) is β in the bearing of trend of two clamping slots (7f) and the second irregularly-shaped hole (7c), the two ends of described position-limitting pin (3) fall into respectively in two clamping slots (7f) of positioning plate (7), and 30 °≤α, β≤90 °.
In installation and unloading process, position-limitting pin and connecting rod are fixed together, and are fastenedly connected assembly and do as a whole.During installation, after being fastenedly connected the bottom of connecting rod in the assembly and position-limitting pin and passing the first irregularly-shaped hole on the first sheet metal part, the corresponding angle of counter clockwise direction rotation alpha, pass again the 3rd circular hole on the second sheet metal part and the second irregularly-shaped hole of positioning plate, the corresponding angle of β that turns clockwise again is until the two ends of position-limitting pin fall into respectively in two clamping slots.Unloading process is just opposite with installation process.
Be preferably, the bearing of trend of second strip hole (7a) of described the second irregularly-shaped hole (7c) is 90 ° with the angle α that the bearing of trend of first strip hole (5a) of the first irregularly-shaped hole (5c) becomes, and the bearing of trend angle β of the second strip hole (7a) is 45 ° in the bearing of trend of two clamping slots (7f) and the second irregularly-shaped hole (7c).During installation, pass first the first sheet metal part after, counterclockwise half-twist passes the second sheet metal part and positioning plate again, and turns clockwise 45 °, and the two ends of position-limitting pin are fallen into respectively in two clamping slots.
Two clamping slots (7f) are circular arc, and the radius of circular arc equates with the radius of position-limitting pin (3), the peak of a wherein end of the first spacing preiection (7d) is lower than the central point of clamping slot (7f), the peak of the other end is higher than the central point of clamping slot (7f), the second spacing preiection (7e) is then just opposite, by optimizing the structure of first, second spacing preiection, the sense of rotation mistake appears in the time of can avoiding assembling, and make assembling more light.
Described return spring (2) is butterfly spring, and butterfly spring is compared cylindrically coiled spring, and rigidity is large, the buffering vibration absorption ability is strong, can bear large load with small deformation, is suitable for the little occasion of axial space requirement.
Described position-limitting pin (3) welds together with connecting rod (1), is connected firmly to guarantee position-limitting pin and connecting rod.
Beneficial effect:
(1) substituted nut in the former bolt and nut component by positioning plate, position-limitting pin has substituted the screw-thread fit in the former bolt and nut component, and positioning plate is by the sheet stamping moulding, and technique is simple, low cost of manufacture;
The first irregularly-shaped hole on (2) first sheet metal parts becomes angle with the second irregularly-shaped hole on the positioning plate, two clamping slots become angle with the second irregularly-shaped hole, rotate counterclockwise again first when screwing and clockwise rotate, guaranteed to be fastenedly connected assembly under abnormal condition, the possibility that comes off is zero, has effectively guaranteed the reliability that connects and the Security of travelling;
(3) being fastenedly connected the process that assembly inserts is exactly the process of return spring distortion, when position-limitting pin rotates to the chucking position, the motion of position-limitting pin has been limited at the two ends of the first spacing preiection and the second spacing preiection, play effective position-limiting action, well guaranteed the tight connection of two sheet metal parts in conjunction with the spring-back force of return spring.
In sum, this structure has low cost of manufacture, and mounting or dismounting do not need instrument and convenient and swift, firm and reliable connection, and secondary loads and unloads the characteristics such as fully unaffected.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation that is fastenedly connected assembly among the present invention.
Fig. 3 is the structural representation of the first sheet metal part among Fig. 1.
Fig. 4 is the structural representation of the second sheet metal part among Fig. 1.
Fig. 5 is the structural representation of positioning plate among Fig. 1.
Fig. 6 is the A-A sectional view of Fig. 5.
Fig. 7 is the stereogram of Fig. 5.
Fig. 8 is the gripping orientation figure of position-limitting pin on positioning plate.
Fig. 9 is two structural representations that sheet metal parts employing bolt and nut component connects introducing in the background technique.
Figure 10 is when nut adopts project-welding nut among Fig. 9 and the wherein welding signal of a sheet metal part.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the present invention is described in further detail:
Automobile-used sheet metal part assembly structure as shown in Figure 1 by the 5, second sheet metal part 6, positioning plate 7 on the first sheet metal part be fastenedly connected assembly and form, is fastenedly connected assembly and is comprised of connecting rod 1, return spring 2, position-limitting pin 3 and plain cushion 4.
As shown in Figure 2, connecting rod 1 is with termination 1a, and return spring 2 and plain cushion 4 are sleeved on the connecting rod 1 successively, is provided with pin via hole 1b at the bar subordinate of connecting rod 1 end, and position-limitting pin 3 is inserted among the pin via hole 1b and with connecting rod 1 and is fixed together.Return spring 2 and plain cushion 4 are between the termination of connecting rod 1 1a and pin via hole 1b.The axis of pin via hole 1b and the intersect vertical axis of connecting rod 1, so, the axis of position-limitting pin 3 also with the intersect vertical axis of connecting rod 1.The length of position-limitting pin 3 is greater than the bar section diameter of connecting rod 1, and the two ends of position-limitting pin 3 all reaches outside the pin via hole 1b.Return spring 2 is preferably butterfly spring, also can be cylindrically coiled spring.Position-limitting pin 3 preferably welds together with connecting rod 1, also can be to be riveted together.
In conjunction with shown in Figure 3,5 arrange the first strip hole 5a that just passes through for position-limitting pin 3, the first circular hole 5b that supplies connecting rod 1 bar section just to pass through on the first sheet metal part, and the center superposition of the center of the first strip hole 5a and the first circular hole 5b consists of the first irregularly-shaped hole 5c.
In conjunction with Fig. 4 as can be known, have the 3rd circular hole 6a that just passes through for position-limitting pin 3, the first circular hole 5b and the coaxial setting of the 3rd circular hole 6a at the second sheet metal part 6.
In conjunction with Fig. 1, Fig. 5---shown in 8, a side that deviates from the first sheet metal part 5 at the second sheet metal part 6 is welded with positioning plate 7, positioning plate 7 upper punches have the second irregularly-shaped hole 7c, the second irregularly-shaped hole 7c is identical with the first irregularly-shaped hole 5c shape, the position is corresponding, the second irregularly-shaped hole 7c is made of the second strip hole 7a and the second circular hole 7b, the angle of the bearing of trend of the first strip hole 5a of the bearing of trend of the second strip hole 7a of the second irregularly-shaped hole 7c and the first irregularly-shaped hole 5c is α, 30 °≤α≤90 °.A side that deviates from the second sheet metal part 6 at positioning plate 7, edge along the second irregularly-shaped hole 7c two long limits is provided with the first spacing preiection 7d and the second spacing preiection 7e, the middle part of the first spacing preiection 7d and the second spacing preiection 7e is lower than two ends, consists of two consistent clamping slot 7f of bearing of trend.The angle of the bearing of trend of the second strip hole 7a is β among the bearing of trend of two clamping slot 7f and the second irregularly-shaped hole 7c, 30 °≤β≤90 °.The size of clamping slot 7f should guarantee the termination of position-limitting pin 3 is snapped in.
In conjunction with Fig. 1, after the bottom of connecting rod 1 and position-limitting pin 3 pass the first irregularly-shaped hole 5c on the first sheet metal part 5, counterclockwise rotate a corresponding angle of α, pass again the 3rd circular hole 6a on the second sheet metal part 6 and the second irregularly-shaped hole 7c on the positioning plate 7, turn clockwise again one with the corresponding angle of β, until the two ends of position-limitting pin 3 fall into respectively in two clamping slot 7f.Like this, return spring 2, plain cushion 4, the first sheet metal part 5, the second sheet metal part 6 and positioning plate 7 are sleeved on the connecting rod 1 successively, and between the termination of connecting rod 1 1a and position-limitting pin 3, and return spring 2 is in compressive state.
In conjunction with Fig. 3, Fig. 5 as can be known, preferably, the bearing of trend of the second strip hole 7a of the second irregularly-shaped hole 7c is 90 ° with the angle α that the bearing of trend of the first strip hole 5a of the first irregularly-shaped hole 5c becomes, and the bearing of trend of two clamping slot 7f is 45 ° with the angle β that the bearing of trend of the second strip hole 7a among the second irregularly-shaped hole 7c becomes.Dotted line is depicted as the first strip hole 5a of position-limitting pin 3, the first irregularly-shaped hole among Fig. 5.
In addition, two clamping slot 7f are preferably circular arc, and the radius of circular arc equates with the radius of position-limitting pin 3, the peak of the wherein end of the first spacing preiection 7d is lower than the central point of clamping slot 7f, the peak of the other end is higher than the central point of clamping slot 7f, and the second spacing preiection 7e is then just opposite.
During installation, after the first irregularly-shaped hole 5c insertion that is fastenedly connected on assembly alignment the first sheet metal part 5, towards the counter clockwise direction half-twist, make and be fastenedly connected assembly and pass successively the 3rd circular hole 6a on the second sheet metal part 6 and the second irregularly-shaped hole 7c on the positioning plate 7, turn clockwise again 45 °, until the two ends of position-limitting pin 3 fall into respectively in the clamping slot 7f, namely finish assembling, the spring-back force of return spring 2 has guaranteed the tight connection of two sheet metal parts effectively at this moment.During dismounting, press the termination 1a of connecting rod 1, position-limitting pin 3 is deviate from clamping slot 7f, be rotated counterclockwise again 45 °, after position-limitting pin 4 withdraws from the 3rd circular hole 6a of the second sheet metal part 6, turn clockwise again 90 °, until after position-limitting pin 3 withdrawed from, dismounting was finished from the first irregularly-shaped hole 5c of the first sheet metal part 5.
Claims (5)
1. automobile-used sheet metal part assembly structure, comprise the first sheet metal part (5) and the second sheet metal part (6), it is characterized in that: also comprise being fastenedly connected assembly and positioning plate (7), the described assembly that is fastenedly connected is comprised of connecting rod (1), return spring (2), position-limitting pin (3) and the plain cushion (4) of belt end (1a), and described positioning plate (7) is welded on the side that described the second sheet metal part (6) deviates from the first sheet metal part (5); Bar subordinate end at described connecting rod (1) is provided with pin via hole (1b), described position-limitting pin (3) is inserted in the pin via hole (1b) and with connecting rod (1) and is fixed together, the intersect vertical axis of the axis of position-limitting pin (3) and connecting rod (1), the length of position-limitting pin (3) is greater than the bar section diameter of connecting rod (1), the two ends of position-limitting pin (3) all reaches outside the pin via hole (1b), described return spring (2), plain cushion (4), the first sheet metal part (5), the second sheet metal part (6) and positioning plate (7) are sleeved between the termination (1a) and position-limitting pin (3) of connecting rod (1) successively, and return spring (2) is in compressive state;
(5) arrange the first strip hole (5a) that just passes through for position-limitting pin (3), the first circular hole (5b) that supplies connecting rod (1) bar section just to pass through on described the first sheet metal part, and the center superposition of the center of the first strip hole (5a) and the first circular hole (5b) consists of the first irregularly-shaped hole (5c); Have the 3rd circular hole (6a) that just passes through for position-limitting pin (3) at the second sheet metal part (6); In positioning plate (7) upper punch the second irregularly-shaped hole (7c) is arranged, the second irregularly-shaped hole (7c) is identical with the first irregularly-shaped hole (5c) shape, the position is corresponding, and the angle of the bearing of trend of the bearing of trend of second strip hole (7a) of the second irregularly-shaped hole (7c) and first strip hole (5a) of the first irregularly-shaped hole (5c) is α, a side that deviates from the second sheet metal part (6) at positioning plate (7), edge along the second irregularly-shaped hole (7c) two long limits is provided with the first spacing preiection (7d) and the second spacing preiection (7e), the middle part of the first spacing preiection (7d) and the second spacing preiection (7e) is lower than two ends, consist of consistent two clamping slots (7f) of bearing of trend, the angle of the bearing of trend of the second strip hole (7a) is β in the bearing of trend of two clamping slots (7f) and the second irregularly-shaped hole (7c), the two ends of described position-limitting pin (3) fall into respectively in two clamping slots (7f) of positioning plate (7), and 30 °≤α, β≤90 °.
2. according to automobile-used sheet metal part assembly structure claimed in claim 1, it is characterized in that: the bearing of trend of second strip hole (7a) of described the second irregularly-shaped hole (7c) is 90 ° with the angle α that the bearing of trend of first strip hole (5a) of the first irregularly-shaped hole (5c) becomes, and the bearing of trend of two clamping slots (7f) is 45 ° with the angle β that the bearing of trend of the second strip hole (7a) in the second irregularly-shaped hole (7c) becomes.
3. according to automobile-used sheet metal part assembly structure claimed in claim 2, it is characterized in that: two clamping slots (7f) are circular arc, and the radius of circular arc equates with the radius of position-limitting pin (3), the peak of a wherein end of the first spacing preiection (7d) is lower than the central point of clamping slot (7f), the peak of the other end is higher than the central point of clamping slot (7f), and the second spacing preiection (7e) is then just opposite.
4. according to each described automobile-used sheet metal part assembly structure among the claim 1--3, it is characterized in that: described return spring (2) is butterfly spring.
5. according to each described automobile-used sheet metal part assembly structure among the claim 1--3, it is characterized in that: described position-limitting pin (3) welds together with connecting rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210396003.2A CN102889284B (en) | 2012-10-17 | 2012-10-17 | Automobile-used sheet metal part assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210396003.2A CN102889284B (en) | 2012-10-17 | 2012-10-17 | Automobile-used sheet metal part assembly structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102889284A true CN102889284A (en) | 2013-01-23 |
| CN102889284B CN102889284B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210396003.2A Expired - Fee Related CN102889284B (en) | 2012-10-17 | 2012-10-17 | Automobile-used sheet metal part assembly structure |
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| CN (1) | CN102889284B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104290769A (en) * | 2014-10-30 | 2015-01-21 | 无锡金鑫集团股份有限公司 | Motor train unit under-car suspension piece bottom plate equipment anti-separating lock |
| CN104895847A (en) * | 2015-06-17 | 2015-09-09 | 成都瑞达科恒科技有限公司 | Detachable cooling fan |
| CN104989658A (en) * | 2015-06-17 | 2015-10-21 | 成都瑞达科恒科技有限公司 | Detachable type automatically-cooling radiating fan |
| CN106666787A (en) * | 2017-03-01 | 2017-05-17 | 徐亮 | Herba ixeris drying device |
| CN107420401A (en) * | 2017-06-30 | 2017-12-01 | 嘉兴职业技术学院 | The mounting structure of Graphic Panel |
| CN108189012A (en) * | 2018-03-02 | 2018-06-22 | 深圳慧昱教育科技有限公司 | A kind of mechanical arm and robot |
| CN108240386A (en) * | 2016-12-27 | 2018-07-03 | 天津市信霖塑料制品有限公司 | A kind of new automobile interior trim buckle |
| CN108387254A (en) * | 2018-02-08 | 2018-08-10 | 深圳市志凌伟业技术股份有限公司 | A kind of capacitance sensor with safety protection structure |
| CN108857992A (en) * | 2018-06-30 | 2018-11-23 | 蒙城信和汽车有限公司 | A kind of automobile-used sheet metal component assembling structure |
| CN109605258A (en) * | 2019-01-16 | 2019-04-12 | 沈阳飞机工业（集团）有限公司 | The floating type screw-in clamping and positioning device of one kind and its application method |
| CN109911171A (en) * | 2019-04-30 | 2019-06-21 | 杜双昱 | Horn rotates synchronously structure and the industrial unmanned plane with the structure |
| CN110396959A (en) * | 2019-06-21 | 2019-11-01 | 四川同达建设有限公司 | A kind of highway novel guardrail being easily installed |
| CN111017570A (en) * | 2019-12-20 | 2020-04-17 | 嘉善剑桥机械有限公司 | Self-propelled reclaimer |
| CN112569548A (en) * | 2020-12-30 | 2021-03-30 | 贵州博坤科技有限公司 | Pole climbing climber for electric power engineering construction |
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| CN202851561U (en) * | 2012-10-17 | 2013-04-03 | 力帆实业(集团)股份有限公司 | Assembly structure of automotive sheet metal parts |
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| US3407454A (en) * | 1966-04-23 | 1968-10-29 | Keith E. Myatt | Quick release fasteners |
| GB2190423A (en) * | 1986-05-13 | 1987-11-18 | British Aerospace | Fastener |
| US5795122A (en) * | 1994-09-21 | 1998-08-18 | Bowers; Ned C. | Adjustable quick connect fastener for accommodating panels of various thicknesses |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104290769A (en) * | 2014-10-30 | 2015-01-21 | 无锡金鑫集团股份有限公司 | Motor train unit under-car suspension piece bottom plate equipment anti-separating lock |
| CN104895847A (en) * | 2015-06-17 | 2015-09-09 | 成都瑞达科恒科技有限公司 | Detachable cooling fan |
| CN104989658A (en) * | 2015-06-17 | 2015-10-21 | 成都瑞达科恒科技有限公司 | Detachable type automatically-cooling radiating fan |
| CN104989658B (en) * | 2015-06-17 | 2018-09-21 | 成都瑞达科恒科技有限公司 | A kind of detachable automatic cooling radiator fan |
| CN108240386A (en) * | 2016-12-27 | 2018-07-03 | 天津市信霖塑料制品有限公司 | A kind of new automobile interior trim buckle |
| CN106666787A (en) * | 2017-03-01 | 2017-05-17 | 徐亮 | Herba ixeris drying device |
| CN107420401A (en) * | 2017-06-30 | 2017-12-01 | 嘉兴职业技术学院 | The mounting structure of Graphic Panel |
| CN108387254A (en) * | 2018-02-08 | 2018-08-10 | 深圳市志凌伟业技术股份有限公司 | A kind of capacitance sensor with safety protection structure |
| CN108387254B (en) * | 2018-02-08 | 2021-06-22 | 深圳市志凌伟业技术股份有限公司 | Capacitive sensor with safety protection structure |
| CN108189012A (en) * | 2018-03-02 | 2018-06-22 | 深圳慧昱教育科技有限公司 | A kind of mechanical arm and robot |
| CN108857992B (en) * | 2018-06-30 | 2019-10-29 | 蒙城信和汽车有限公司 | A kind of automobile-used sheet metal component assembling structure |
| CN108857992A (en) * | 2018-06-30 | 2018-11-23 | 蒙城信和汽车有限公司 | A kind of automobile-used sheet metal component assembling structure |
| CN109605258A (en) * | 2019-01-16 | 2019-04-12 | 沈阳飞机工业（集团）有限公司 | The floating type screw-in clamping and positioning device of one kind and its application method |
| CN109911171A (en) * | 2019-04-30 | 2019-06-21 | 杜双昱 | Horn rotates synchronously structure and the industrial unmanned plane with the structure |
| CN109911171B (en) * | 2019-04-30 | 2023-11-14 | 杜双昱 | Synchronous rotating structure of horn and have industry unmanned aerial vehicle of this structure |
| CN110396959A (en) * | 2019-06-21 | 2019-11-01 | 四川同达建设有限公司 | A kind of highway novel guardrail being easily installed |
| CN110396959B (en) * | 2019-06-21 | 2021-08-06 | 四川同达建设有限公司 | Novel highway guardrail convenient to install |
| CN111017570A (en) * | 2019-12-20 | 2020-04-17 | 嘉善剑桥机械有限公司 | Self-propelled reclaimer |
| CN111017570B (en) * | 2019-12-20 | 2021-11-19 | 嘉善剑桥机械有限公司 | Self-propelled reclaimer |
| CN112569548A (en) * | 2020-12-30 | 2021-03-30 | 贵州博坤科技有限公司 | Pole climbing climber for electric power engineering construction |
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