CN106836064B - Anti-splashing road barrier nail - Google Patents
Anti-splashing road barrier nail Download PDFInfo
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- CN106836064B CN106836064B CN201710103029.6A CN201710103029A CN106836064B CN 106836064 B CN106836064 B CN 106836064B CN 201710103029 A CN201710103029 A CN 201710103029A CN 106836064 B CN106836064 B CN 106836064B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/12—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions for forcibly arresting or disabling vehicles, e.g. spiked mats
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Abstract
The invention discloses a splash-proof road barrier nail, which has the technical scheme that the splash-proof road barrier nail is arranged into a sharp tip, therefore, the anti-splash road barrier stud can be quickly inserted into the tire when in use, and simultaneously, in order to quickly deflate the tire, after the tip of the splash-proof road barrier nail is pricked into the tire, the air in the tire generates pressure to the piston cylinder through the air inlet groove so as to separate the tip from the base body through the first piston rod, thereby forming a larger exhaust passage through which air is exhausted, enabling more rapid deflation of the tire, set up dedicated locking device simultaneously, the motion through the piston cylinder makes the check lock lever withstand the tire through the sharp-pointed part and then increase frictional force, prevents that the roadblock nail that prevents splashing breaks away from in the tire motion process to prevent that the roadblock nail that prevents splashing from dancing and causing adverse effect. The invention solves the problem that the existing road barrier nail can splash out due to the fact that the tire rotates at the speed of telling the tire after being pricked into the tire.
Description
Technical Field
The invention relates to the field of police equipment, in particular to a splash-proof road barrier nail.
Background
The road barrier spike is used as police or military equipment, and is used for performing deflation operation on a tire of an automobile under a specific condition, so that the tire loses tire pressure, the mobility of a specific vehicle is further limited, and the aim of pursuing evasion or limiting the mobility of an enemy is fulfilled.
The barrier nail that now commonly used, general design becomes the triangular pyramid shape, can ensure the stability of barrier nail on ground like this to guarantee the barrier nail can contact more firm when contacting with the tire.
For example, the invention patent with patent publication number CN103866710A discloses a police road barrier nail, which adopts the technical scheme that: the steel nail fixing device comprises a body, the body is hollow triangular pyramid, all be provided with vertically steel nail on every summit of triangular pyramid, the steel nail is hollow structure, all be provided with the helicla flute on the inner wall of steel nail and the outer wall, the inside of every steel nail all communicates each other. This it is alert with road barrier nail's beneficial effect does: the structure is simple, the air in the tires can be rapidly released by utilizing the steel nail holes communicated with the inside, so that gangsters do not have the time to escape, the obstruction is good, the carrying is convenient, the cost is low, and the popularization and the use are easy.
However, after the police road stud is pricked into the tire, the road stud can splash due to high-speed rotation of the tire, and the splashed road stud cannot be conveniently recovered and can fall to other places to cause other innocent vehicles to be damaged. Therefore, it is necessary to design a road barrier stud which can be firmly connected to a tire after the tire is punctured.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the anti-splashing road barrier nail capable of preventing the road barrier nail from splashing on the tire.
In order to achieve the purpose, the invention provides the following technical scheme: an anti-splashing road barrier nail is made of steel and used for deflating a running tire and comprises a triangular pyramid body, a cavity is arranged in the triangular pyramid body, air outlet holes communicated with the cavity are formed in the triangular pyramid body, communication holes communicated with the cavity are formed in the top points of the triangular pyramid body, a puncturing mechanism is vertically connected to each top point of the triangular pyramid body and comprises a base body fixedly connected with the triangular pyramid body, a conical tip is connected to the top end of the base body, the base body and the tip are connected to form a cone shape, the contact surface of the base body and the tip is called a top surface, a piston cylinder is arranged in the center of the base body, a piston body slides in the piston cylinder in a sealing mode, the piston cylinder is divided into an upper cylinder and a lower cylinder, and the upper cylinder is intersected with the top surface, an exhaust channel is arranged at the position close to the top surface and is communicated with the cavity through a communication hole; a plurality of air inlet grooves are uniformly formed in the side face of the base body and are communicated with the lower cylinder; the upper part and the lower part of the piston body are respectively connected with a first piston rod and a second piston rod, wherein the first piston rod is positioned in the upper cylinder, the second piston rod is positioned in the lower cylinder, the second piston rod is connected with an anti-falling rod, and the anti-falling rod extends into the air inlet groove and is vertically and fixedly connected with the second piston rod; the top is provided with a sealing ring platform inserted with the upper cylinder, the top is internally provided with an anti-falling device, the anti-falling device comprises a cylindrical sliding block fixedly connected with the top end of the first piston rod, the top surface of the top is provided with a sliding hole connected with the sliding block in a sliding manner, the bottom end of the sliding hole is provided with a sliding table for preventing the sliding block from sliding out, the side edge of the sliding hole is provided with a sliding groove communicated with the outer side of the top, the sliding groove is connected with a sliding plate in a sealing and sliding manner, a rotating shaft is arranged above the sliding hole in the sliding groove, the sliding plate rotates around the rotating shaft, the sliding plate comprises a driving edge contacted with the sliding block, a rotating part rotating around the rotating shaft and an arc edge positioned at the lowest end of the sliding plate, the bottom end of the sliding groove is provided with an arc groove in constantly sealed contact with the arc edge in the rotating process of the arc edge, and the upper end of the sliding groove is also provided with a clamping edge for limiting the rotating range of the arc groove, the clamping edge is parallel to the top surface; when the slide block moves to the top end of the slide hole, the lowest end of the slide plate is still in the slide groove, namely the slide plate and the slide hole are in a sealing state.
Through adopting above-mentioned technical scheme, install four mechanisms of punctureing perpendicularly respectively on four summits of triangular pyramid, when preventing splashing the barrier nail and place subaerial, prevent splashing the barrier nail and be in a relatively stable state. When an automobile runs, a tire can be contacted with the tip and can be pricked into the tire, because the tip is arranged in a conical shape, the tire can be pricked into the tire quickly, the pricking mechanism can be pricked into the tire gradually until the air inlet groove begins to be contacted with air in the tire, at the moment, the air enters the piston cylinder because the height of the air inlet groove is less than the thickness of the tire, the piston body is pushed to move due to the pressure of the air, the piston body moves to drive the sliding block to move towards the tip in the sliding hole, the sliding block pushes the driving edge of the sliding plate to enable the sliding plate to start rotating in the sliding groove, when the sliding block rotates to a certain degree, the sliding block is contacted with the top end of the sliding hole, the sliding plate is connected with the sliding groove in a sealing and sliding manner, the sliding block pushes the whole tip to move after the contact, so that the tip is separated from the base body, therefore, the air can flow out of the atmosphere from the exhaust channel through the cavity through the upper cylinder, and the sliding plate is also in an open state at the moment, and the process is carried out in a very small time when the tire presses down the road barrier stud; after the tire is gone into to the roadblock nail, when tire rotation, the tire can want the tire to remove outward because centrifugal force, because the slide is in open mode salient in top outside this moment, consequently can continue to open the slide after tire and slide contact, until slide and card limit mutual contact, consequently the inside of tire has been received to the slide this moment, owing to set up the anticreep pole, the ring platform makes whole roadblock nail constitute an interconnect's whole, consequently, play the effect that prevents the roadblock nail and deviate from, reach the purpose that prevents and treat the roadblock nail and splash.
The invention is further configured to: the tip is provided with a magnet for preventing the tip from being separated from the base body in a non-working state.
Through adopting above-mentioned technical scheme, set up magnet and can make top can not break away from thus convenient use from the base member under non-operating condition.
The invention is further configured to: the cavity is a spherical cavity, and a plurality of lead counterweight balls are arranged in the cavity.
Through adopting above-mentioned technical scheme, set up the cavity into globular to distribute the counter weight ball of a plurality of plumb systems in globular cavity, because the weight of counter weight ball is great while the counter weight ball is located the lowest of cavity, consequently the setting of counter weight ball can reduce the focus of preventing the roadblock nail that splashes, consequently makes the roadblock nail that prevents splashing more have stability, consequently can make things convenient for more effectually to use.
In conclusion, the invention has the following beneficial effects: the anti-splashing road barrier nail can be quickly inserted into the tire and quickly deflated in the using process, and meanwhile, the anti-splashing road barrier nail cannot be thrown out by the rotating tire after being pricked into the tire, so that the road barrier nail can be prevented from splashing in the using process.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment.
Fig. 2 is a schematic view of the internal structure of the triangular pyramid body.
Fig. 3 is a schematic view showing the overall structure of the base and the tip.
Fig. 4 is a schematic view of the internal structure of the base and tip in a closed state.
Fig. 5 is a partially enlarged view of a in fig. 4.
Fig. 6 is a partially enlarged view of B in fig. 4.
Fig. 7 is a schematic view of the internal structure of the base and the tip in an open state.
Fig. 8 is a partial enlarged view of C in fig. 7.
Fig. 9 is a partial enlarged view of D in fig. 7.
In the figure: 1. a triangular pyramid body; 2. a cavity; 3. an air outlet; 4. a communicating hole; 5. a substrate; 6. a tip; 7. a piston cylinder; 71. feeding a cylinder; 72. lowering the cylinder; 8. a top surface; 9. a first piston rod; 10. a piston body; 11. an air inlet groove; 12. a second piston rod; 13. a sealing ring table; 14. an exhaust passage; 15. a magnet; 16. an anti-drop rod; 17. a slider; 18. a counterweight ball; 19. a slide hole; 20. a sliding table; 21. a chute; 211. an arc groove; 212. edge clamping; 22. a slide plate; 221. a driving edge; 222. a rotating part; 223. arc edge; 23. and rotating the shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): the utility model provides a prevent road fault nail that splashes, adopt steel to make, be used for deflating the tire in marcing, see fig. 1 to 8 and show, including triangular pyramid body 1, be provided with spherical cavity 2 in the triangular pyramid body 1, set up cavity 2 to globular, and distribute the counter weight ball 18 of a plurality of plumb system in globular cavity 2, because counter weight ball 18 is located the lower of cavity 2 when the weight of counter weight ball 18 is great, consequently the setting of counter weight ball 18 can reduce the focus of preventing road fault nail that splashes, consequently makes prevent road fault nail that splashes more have stability, consequently can make things convenient for more effectual use. And the triangular pyramid body 1 is provided with an air outlet 3 communicated with the cavity 2, and air in the tire is discharged through the air outlet 3.
Each vertex of the triangular pyramid is provided with a communicating hole 4 communicated with the cavity 2, each vertex of the triangular pyramid body 1 is vertically connected with a puncturing mechanism, the puncturing mechanism comprises a base body 5 fixedly connected with the triangular pyramid body 1, the top end of the base body 5 is connected with a conical tip 6, and the base body 5 and the tip 6 are connected to form a cone shape. The penetration mechanism can be formed into a complete cone shape so that the friction force is less when the tire is inserted, and the insertion can be faster.
The contact surface of the base body 5 and the tip 6 is called a top surface 8, a piston cylinder 7 is arranged in the center of the base body 5, a piston body 10 is connected in the piston cylinder 7 in a sealing and sliding mode, the piston cylinder 7 of the piston cylinder 7 is divided into an upper cylinder 71 and a cylinder by the piston body 10, and the upper cylinder 71 and the top surface 8 are intersected and located above the piston body 10.
The center 6 is provided with a sealing ring platform 13 inserted with the upper cylinder 71, and the existence of the sealing ring platform 13 can prevent the problem that the center 6 can not be opened because the gas in the tire enters the upper cylinder 71 after the center 6 is inserted into the tire.
The side of base member 5 is connected with four air inlet grooves 11 of evenly distributed, and air inlet groove 11 communicates with lower cylinder 72. During use, gas in the tire flows into the piston cylinder 7 from the gas inlet groove 11, and due to the existence of the gas exhaust channel 14 and the sliding table 20, the upper cylinder 71 is communicated with the external atmospheric pressure through the cavity 2, so that a pressure difference exists above and below the piston, and the piston body 10 can move to separate the base body 5 from the tip 6.
The upper cylinder 71 is provided with a plurality of exhaust passages 14 near the top surface 8. The exhaust passage 14 is shown, the exhaust passage 14 bypassing the inlet slot 11 not being shown. The exhaust passage 14 communicates with the cavity 2 through the communication hole 4, so that air is rapidly discharged from the exhaust passage after the tip 6 is opened.
The piston body 10 is connected with a first piston rod 9 and a second piston rod 12 from top to bottom, wherein the first piston rod 9 is located in the upper cylinder 71, the second piston rod 12 is located in the lower cylinder 72, the second piston rod 12 is connected with an anti-dropping rod 16, and the anti-dropping rod 16 extends into the air inlet groove 11 and is vertically and fixedly connected with the second piston rod 12. Since the stopper rod 16 is provided in the intake groove 11 by the stopper rod 16, the base body 5 and the piston body 10 and the second piston rod 12 can be prevented from being disengaged.
An anti-falling device is further arranged in the center 6 and comprises a cylindrical sliding block 17 fixedly connected to the top end of the first piston rod 9, a sliding hole 19 connected with the sliding block 17 in a sliding mode is formed in the top surface 8 of the center 6, a sliding table 20 for preventing the sliding block 17 from sliding out is arranged at the bottom end of the sliding hole 19, a sliding groove 21 communicated with the outer side of the center 6 is arranged on the side edge of the sliding hole 19, a sliding plate 22 is connected with the sliding groove 21 in a sealing and sliding mode, a rotating shaft 23 is arranged above the sliding hole 19 in the sliding groove 21, the sliding plate 22 rotates around the rotating shaft 23, the sliding plate 22 comprises a driving edge 221 in contact with the sliding block 17, a rotating portion 222 rotating around the rotating shaft 23 and an arc edge 223 located at the lowest end of the sliding plate 22, an arc groove 211 in constantly in sealing contact with the arc edge 223 in the rotating process of the arc edge 223 is arranged at the bottom end of the sliding groove 21, a clamping edge 212 for limiting the rotating range of the arc groove 211 is further arranged at the upper end of the sliding groove 21, and the clamping edge 212 is parallel to the top surface 8; when the slide block 17 moves to the top end of the slide hole 19, the lowest end of the slide plate 22 is still in the slide groove 21, i.e. the two are in a sealing state.
The center 6 is provided with a magnet 15 for preventing the center 6 from being detached from the base 5 in the non-operating state. The magnet 15 is provided so that the tip 6 does not come off the base 5 in the non-operating state, thereby enabling convenient use.
When the splash-proof road barrier nail is used, when an automobile runs, a tire can be in contact with the apex 6 and can be pricked into the tire, because the apex 6 is arranged in a conical shape, the tire can be pricked into the tire quickly, the pricking mechanism can be pricked into the tire gradually until the air inlet groove 11 is in contact with air in the tire, at the moment, because the height of the air inlet groove 11 is smaller than the thickness of the tire, the air enters the piston cylinder 7, the piston body 10 is pushed to move due to the pressure of the air, the piston body 10 moves to drive the sliding block 17 to move towards the apex 6 in the sliding hole 19, the sliding block 17 pushes the driving edge 221 of the sliding block 22 to enable the sliding block 22 to start rotating in the sliding groove 21, when the sliding block 17 rotates to a certain degree, the sliding block 17 is in contact with the top end of the sliding hole 19, at the moment, the sliding block 22 is in sealed sliding connection with the sliding groove 21, and the sliding block 17 pushes the whole apex 6 to move after the sliding block 17 is contacted, so that the tip 6 is disengaged from the base body 5, so that gas can escape from the exhaust channel 14 through the atmosphere in the cavity 2 via the upper cylinder 71, and the slide 22 is now also in the open state, which takes place during a short period of time when the tire presses down on the road stud; after the roadblock nail is fixed in the tire, when the tire rotates, the tire can want to move outside the tire due to centrifugal force, and the sliding plate 22 is in an open state and protrudes out of the center 6, so the sliding plate 22 can be continuously opened after the tire is contacted with the sliding plate 22 until the sliding plate 22 and the clamping edge 212 sliding table 20 enable the whole roadblock nail to form a mutually connected whole, and therefore the roadblock nail is prevented from falling off, and the purpose of preventing the roadblock nail from splashing is achieved.
In conclusion, the invention has the following beneficial effects: the anti-splashing road barrier nail can be quickly inserted into the tire and quickly deflated in the using process, and meanwhile, the anti-splashing road barrier nail cannot be thrown out by the rotating tire after being pricked into the tire, so that the road barrier nail can be prevented from splashing in the using process.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (3)
1. The utility model provides an anti-splash road barrier nail, adopts steel to make for deflate to the tire of marcing, including triangular pyramid body (1), be provided with cavity (2) in triangular pyramid body (1), just be provided with on triangular pyramid body (1) with venthole (3) of cavity (2) intercommunication, the summit of triangular pyramid be provided with intercommunicating pore (4) of cavity (2) intercommunication, its characterized in that: each vertex of the triangular pyramid body (1) is vertically connected with a puncture mechanism, the puncture mechanism comprises a base body (5) fixedly connected with the triangular pyramid body (1), the top end of the base body (5) is connected with a conical tip (6), the base body (5) and the tip (6) are connected to form a conical shape, the contact surface of the base body (5) and the tip (6) is called a top surface (8), a piston cylinder (7) is arranged at the central position of the base body (5), a piston body (10) is hermetically slid in the piston cylinder, the piston cylinder (7) is divided into an upper cylinder (71) and a lower cylinder (72) by the piston body (10), the upper cylinder (71) intersects with the top surface (8), an exhaust channel (14) is arranged at a position close to the top surface (8), and the exhaust channel (14) is communicated with the cavity (2) through a communication hole (4); a plurality of air inlet grooves (11) are uniformly formed in the side face of the base body (5), and the air inlet grooves (11) are communicated with the lower cylinder (72); a first piston rod (9) and a second piston rod (12) are respectively connected to the upper part and the lower part of the piston body (10), wherein the first piston rod (9) is positioned in an upper cylinder (71), the second piston rod (12) is positioned in a lower cylinder (72), the second piston rod (12) is connected with an anti-falling rod (16), and the anti-falling rod (16) extends into the air inlet groove (11) and is vertically and fixedly connected with the second piston rod (12); the anti-falling device is characterized in that a sealing ring platform (13) which is connected with the upper cylinder (71) in an inserting mode is arranged on the tip (6), an anti-falling device is further arranged in the tip (6), the anti-falling device comprises a cylindrical sliding block (17) which is fixedly connected to the top end of the first piston rod (9), a sliding hole (19) which is connected with the sliding block (17) in a sliding mode is arranged on the top surface (8) of the tip (6), a sliding table (20) which prevents the sliding block (17) from sliding out is arranged at the bottom end of the sliding hole (19), a sliding groove (21) communicated with the outer side of the tip (6) is arranged on the side edge of the sliding hole (19), the sliding groove (21) is connected with a sliding plate (22) in a sealing and sliding mode, a rotating shaft (23) is arranged above the sliding hole (19) in the sliding groove (21), the sliding plate (22) rotates around the rotating shaft (23), and the sliding plate (22) comprises a driving edge (221) which is in contact with the sliding block (17), the sliding chute comprises a rotating part (222) rotating around a rotating shaft (23) and an arc edge (223) positioned at the lowest end of a sliding plate (22), wherein an arc groove (211) which is in sealing contact with the arc edge (223) at any time in the rotating process of the arc edge (223) is arranged at the bottom end of the sliding chute (21), a clamping edge (212) used for limiting the rotating range of the arc groove (211) is further arranged at the upper end of the sliding chute (21), and the clamping edge (212) is parallel to the top surface (8); when the sliding block (17) moves to the top end of the sliding hole (19), the lowest end of the sliding plate (22) is still in the sliding groove (21), namely the sliding plate and the sliding groove are in a sealing state; the height of the air groove in the direction of the piston rod is smaller than the thickness of the tire, and the air inlet groove is in contact with air in the tire when the road barrier nail punctures the tire.
2. The splash-proof road barrier stud as claimed in claim 1, wherein: the center (6) is provided with a magnet (15) for preventing the center (6) from being separated from the base body (5) in a non-working state.
3. The splash barrier stud as claimed in claim 1 or claim 2, wherein: the cavity (2) is a spherical cavity (2), and a plurality of lead counterweight balls (18) are arranged in the cavity (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710103029.6A CN106836064B (en) | 2017-02-24 | 2017-02-24 | Anti-splashing road barrier nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710103029.6A CN106836064B (en) | 2017-02-24 | 2017-02-24 | Anti-splashing road barrier nail |
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| Publication Number | Publication Date |
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| CN106836064A CN106836064A (en) | 2017-06-13 |
| CN106836064B true CN106836064B (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710103029.6A Active CN106836064B (en) | 2017-02-24 | 2017-02-24 | Anti-splashing road barrier nail |
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| DE20305540U1 (en) * | 2003-04-05 | 2003-07-17 | Heintzmann Sicherheitssysteme GmbH & Co. KG, 44793 Bochum | Stop barrier in road for vehicles with pneumatic tires consists of transverse groove in road with pivoting sharp spikes set to puncture tire rolling in wrong direction |
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| CN203197937U (en) * | 2013-04-17 | 2013-09-18 | 朱瑛 | Stretchable cutter |
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| CN205399293U (en) * | 2016-02-29 | 2016-07-27 | 张一鸣 | Portable tire burster |
| KR101683166B1 (en) * | 2016-06-14 | 2016-12-06 | 김일섭 | Spike strip |
| CN206298846U (en) * | 2016-11-02 | 2017-07-04 | 威海天剑电子科技有限公司 | A kind of Intelligent mobile turnover panel car arrester |
| CN107288065A (en) * | 2017-07-17 | 2017-10-24 | 贵州大学 | A kind of net formula breaks the broken tire pin structure of tire stopping device |
| CN206607528U (en) * | 2017-02-24 | 2017-11-03 | 周高阳 | Efficient road barricade nail |
| CN110441073A (en) * | 2019-08-29 | 2019-11-12 | 吉林大学 | A kind of broken device of tyre and its control device in vehicle travel process |
| CN211355799U (en) * | 2019-12-25 | 2020-08-28 | 长兴县中医院 | Fetal membrane breaking tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20305540U1 (en) * | 2003-04-05 | 2003-07-17 | Heintzmann Sicherheitssysteme GmbH & Co. KG, 44793 Bochum | Stop barrier in road for vehicles with pneumatic tires consists of transverse groove in road with pivoting sharp spikes set to puncture tire rolling in wrong direction |
| CN200967934Y (en) * | 2006-09-04 | 2007-10-31 | 陈增广 | Vehicle barrier-rush prevention roadblock |
| CN201883396U (en) * | 2010-11-26 | 2011-06-29 | 郑州市公安局 | Road-block device with positioning function |
| CN103088770A (en) * | 2011-11-01 | 2013-05-08 | 靳洪伟 | Casting type barricade |
| CN203197937U (en) * | 2013-04-17 | 2013-09-18 | 朱瑛 | Stretchable cutter |
| CN104389281A (en) * | 2014-11-21 | 2015-03-04 | 天津苇江安防装备科技发展有限公司 | Portable throwing type vehicle stopping nail |
| CN205399293U (en) * | 2016-02-29 | 2016-07-27 | 张一鸣 | Portable tire burster |
| KR101683166B1 (en) * | 2016-06-14 | 2016-12-06 | 김일섭 | Spike strip |
| CN206298846U (en) * | 2016-11-02 | 2017-07-04 | 威海天剑电子科技有限公司 | A kind of Intelligent mobile turnover panel car arrester |
| CN206607528U (en) * | 2017-02-24 | 2017-11-03 | 周高阳 | Efficient road barricade nail |
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| CN110441073A (en) * | 2019-08-29 | 2019-11-12 | 吉林大学 | A kind of broken device of tyre and its control device in vehicle travel process |
| CN211355799U (en) * | 2019-12-25 | 2020-08-28 | 长兴县中医院 | Fetal membrane breaking tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106836064A (en) | 2017-06-13 |
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