CN110374029B - Crossing control device for preventing criminals from driving away - Google Patents

Crossing control device for preventing criminals from driving away Download PDF

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Publication number
CN110374029B
CN110374029B CN201910679038.9A CN201910679038A CN110374029B CN 110374029 B CN110374029 B CN 110374029B CN 201910679038 A CN201910679038 A CN 201910679038A CN 110374029 B CN110374029 B CN 110374029B
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CN
China
Prior art keywords
lifting
rod
sliding
cavity
wall
Prior art date
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Expired - Fee Related
Application number
CN201910679038.9A
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Chinese (zh)
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CN110374029A (en
Inventor
汪贤荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qidong Hezi New Material Co ltd
Original Assignee
Zhejiang Zhichuang Enterprise Management Co Ltd
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Priority to CN201910679038.9A priority Critical patent/CN110374029B/en
Publication of CN110374029A publication Critical patent/CN110374029A/en
Application granted granted Critical
Publication of CN110374029B publication Critical patent/CN110374029B/en
Expired - Fee Related legal-status Critical Current
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F13/00Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
    • E01F13/12Arrangements 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
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F13/00Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
    • E01F13/12Arrangements 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
    • E01F13/126Pitfall barriers, causing the vehicle to face a step-like obstruction

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Emergency Lowering Means (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

The invention discloses an intersection control device for preventing criminals from driving vehicles to escape, which comprises a base, wherein a lifting cavity is arranged in the base, and lifting devices which are bilaterally symmetrical are arranged in the lifting cavity.

Description

Crossing control device for preventing criminals from driving away
Technical Field
The invention relates to the technical field of vehicle interception, in particular to an intersection control device for preventing criminals from driving away.
Background
At present, a plurality of roadblocks are arranged on the market, one is that a plurality of steel thorns are arranged in front of a barrier plate and used for puncturing tires, the other is that the barrier plate directly intercepts vehicles, but the steel structure is too weak and cannot intercept large vehicles on the spot, the vehicles cannot stay in place after the driving state of the vehicles is damaged by the intercepting devices, the vehicles can move due to the inertia of the vehicles and rotate, overturn and the like in the unbalance process, potential safety hazards exist for people in the vehicles and pavement personnel, the intercepting function cannot be achieved completely, and extra social injuries can be caused. The present invention sets forth a device that solves the above problems.
Disclosure of Invention
The technical problem is as follows:
the existing intercepting roadblock can only destroy the balance state of vehicle running, but cannot control the vehicle in situ.
In order to solve the problems, the embodiment designs an intersection control device for preventing criminal driving from escaping, which comprises a base, wherein a lifting cavity is arranged in the base, bilaterally symmetrical lifting devices are arranged in the lifting cavity, the lifting devices are connected with the lifting cavity in a rotating way, bilaterally symmetrical limiting grooves are arranged on the inner wall of the lifting cavity, lifting blocks which are connected with the limiting grooves in a sliding way and are in threaded connection with the screw rods are arranged on the lifting cavities to realize the up-and-down movement, auxiliary belt wheels are arranged on the screw rods and are positioned at the lower ends of the lifting blocks, through holes are communicated with the inner wall of the top ends of the lifting cavities, sliding door assemblies are arranged in the through holes, the sliding door assemblies are connected with baffle plates in the sliding grooves in a sliding way through bilaterally symmetrical sliding ways arranged in the through holes to realize the change of the opening and closing states of the through holes, the lifting cavity bottom inner wall rotates and is connected with the transmission shaft, be equipped with the main band pulley on the transmission shaft, the main band pulley with be connected with the belt between the accessory pulley, be equipped with the striking gear that the equipment removed forty-five degrees at every turn of work on the transmission shaft, lifting cavity bottom inner wall is equipped with the receive the anti-disengaging device of lifting device control and bilateral symmetry, anti-disengaging device through with the linking pole of lifting device butt realizes the horizontal slip, the articulated chain pole that is connected with on the linking pole, the lifting cavity is equipped with and is located the fixing device in the striking gear outside, fixing device is through being located the solid fixed ring in the striking gear outside, set up in gu fixed ring go up and bilateral symmetry's articulated seat, articulated seat with it is articulated between the chain pole to realize reciprocating in step.
Preferably, the lower end of the transmission shaft is in power connection with a motor embedded in the inner wall of the bottom end of the lifting cavity.
The lifting device comprises a sliding barrel fixedly connected to the lower side of the lifting block and slidably connected with the screw rod, and an inclined block slidably connected with the connecting rod is arranged at the lower end of the sliding barrel.
The sliding door assembly comprises a pull rod hinged to the lower side of the baffle, and the pull rod is hinged to the end face, close to the symmetrical center, of the lifting block, and is connected with the lifting block in a hinged mode.
Wherein, toggle device including rotate connect in epaxial thumb wheel of transmission, be equipped with the transmission chamber in the thumb wheel, be equipped with on the transmission shaft and be located the runner of transmission intracavity, be equipped with flexible chamber in the runner, sliding connection has the kelly on the flexible chamber excircle side inner wall, the kelly front end articulated have with flexible intracavity wall articulated connecting rod, the kelly with be connected with compression spring between the flexible chamber, the transmission intracavity be equipped with the stopper of kelly butt.
The anti-separation device comprises sliding cavities which are arranged at the lower end of the lifting cavity and are bilaterally symmetrical, the upper ends of the sliding cavities are communicated with and provided with slideways which are connected with the connecting rods in a sliding mode, the connecting rods are connected with resistance springs between the slideways, and the sliding cavities are connected with sliders which are fixedly connected with the connecting rods in a sliding mode.
Wherein, fixing device include bilateral symmetry set up in the fixed ring and the ascending open slot of opening, be equipped with central symmetry in the open slot and with the communicating fixed slot of open slot, the fixed slot is close to communicate with each other on the inner wall of thumb wheel one side and be equipped with rotatory chamber, in the fixed slot sliding connection have with thumb wheel fixed connection's arc pole, sliding connection has intercepting device in the open slot.
The intercepting device comprises a pin rod which is connected with the open slot in a sliding mode, a through hole which is abutted to the arc rod is formed in the pin rod, clamping arms which are located at the upper end of the fixing ring and are bilaterally symmetrical are arranged in the lifting cavity, a rotary groove is formed in the lower end of each clamping arm, a fixing shaft which is fixedly connected with the pin rod is rotationally connected in the rotary groove, a torque spring is connected between the pin rod and the rotary groove, cloth rollers are rotationally connected to the side end faces, close to the symmetrical center, of the clamping arms, and an intercepting net which can be wound on the surfaces of wheels is connected between the cloth rollers.
The invention has the beneficial effects that: the invention adopts the form of the intercepting tuck net to restrain the rotation capacity of wheels driving the vehicle to advance, so that the vehicle loses the advancing power source, and uses a bolt type structure for the intercepting structure part to limit the freedom degree of up-and-down movement, so as to ensure that the vehicle can be stabilized at the point by equipment after passing, effectively prevent the vehicle from being damaged and balanced, and effectively prevent the vehicle from overturning and rotating under the action of inertia, ensure the safety of the arresters and pedestrians on the road surface, and reduce the material loss caused by arresting as much as possible.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
Fig. 1 is a schematic view of the overall structure of an intersection control device for preventing the driving of a criminal from escaping;
FIG. 2 is a schematic view of the structure "A-A" of FIG. 1;
FIG. 3 is a schematic structural view of "B-B" of FIG. 1;
FIG. 4 is a schematic view of the structure "C-C" of FIG. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a crossing control device for preventing criminals from driving away, which is mainly applied to the process of intercepting fleeing vehicles, and the invention is further explained by combining the attached drawings of the invention:
the invention relates to a crossing control device for preventing criminal driving from escaping, which comprises a base 11, wherein a lifting cavity 12 is arranged in the base 11, a lifting device 901 which is bilaterally symmetrical is arranged in the lifting cavity 12, the lifting device 901 is provided with a lifting block 15 which is connected in a sliding way in the limiting groove 14 and is in threaded connection with a screw 16 through the screw 16 which is rotationally connected with the lifting cavity 12, a limiting groove 14 which is arranged on the inner wall of the lifting cavity 12 and is bilaterally symmetrical, the lifting block 15 which is connected in the limiting groove 14 in a sliding way and is in threaded connection with the screw 16 is used for realizing the up-and-down movement, a secondary belt pulley 40 which is arranged at the lower end of the lifting block 15 is arranged on the screw 16, a through hole 19 is communicated with the inner wall at the top end of the lifting cavity 12, a sliding door component 902 is arranged in the through hole 19, the inner wall of the bottom end of the lifting cavity 12 is rotatably connected with a transmission shaft 33, the transmission shaft 33 is provided with a main belt wheel 32, a belt 56 is connected between the main belt wheel 32 and the auxiliary belt wheel 40, the transmission shaft 33 is provided with a shifting device 903 for shifting the equipment to move by forty-five degrees in each work, the inner wall of the bottom end of the lifting cavity 12 is provided with an anti-separation device 904 controlled by the lifting device 901 and in bilateral symmetry, the anti-separation device 904 realizes the left-right sliding through a connecting rod 39 abutted against the lifting device 901, the connecting rod 39 is hinged with a chain rod 26, the lifting cavity 12 is internally provided with a fixing device 905 positioned outside the shifting device 903, the fixing device 905 is arranged on the fixing ring 24 and in bilateral symmetry through a fixing ring 24 positioned outside the shifting device 903, the hinging seat 25 is hinged with the chain rod 26, thereby realizing synchronous up-and-down movement.
Advantageously, the lower end of the transmission shaft 33 is in power connection with a motor 34 embedded in the inner wall of the bottom end of the lifting cavity 12, and the motor 34 can receive signals and automatically open and close.
According to an embodiment, the lifting device 901 is described in detail below, the lifting device 901 comprises a sliding barrel 13 fixedly connected to the lower side of the lifting block 15 and slidably connected to the screw 16, the lower end of the sliding barrel 13 is provided with a slope block 41 slidably connected to the connecting rod 39, and the slope block 41 is used to actuate the separation-preventing device 904.
According to an embodiment, the sliding door assembly 902 is described in detail below, the sliding door assembly 902 includes a pull rod 18 hinged to the lower side of the baffle plate 17, the pull rod 18 is hinged to the lifting block 15 near the side end face of the center of symmetry, and the baffle plate 17 is synchronized with the lifting block 15 through the pull rod 18.
According to the embodiment, the following explanation is in detail carried out to toggle device 903, toggle device 903 including rotate connect in thumb wheel 46 on the transmission shaft 33, be equipped with transmission chamber 45 in the thumb wheel 46, be equipped with on the transmission shaft 33 and be located runner 44 in transmission chamber 45, be equipped with flexible chamber 51 in the runner 44, sliding connection has kelly 48 on the flexible chamber 51 excircle side inner wall, kelly 48 front end articulate have with flexible chamber 51 inner wall articulated connecting rod 50, kelly 48 with be connected with compression spring 52 between the flexible chamber 51, be equipped with in the transmission chamber 45 with the stopper 49 of kelly 48 butt.
According to an embodiment, the following detailed description will be made on the separation preventing device 904, where the separation preventing device 904 includes a slide cavity 36 disposed at the lower end of the lifting cavity 12 and symmetrical to each other, a slide way 35 slidably connected to the joint rod 39 is disposed at the upper end of the slide cavity 36, a resistance spring 37 is connected between the joint rod 39 and the slide way 35, a slide block 38 fixedly connected to the joint rod 39 is slidably connected to the slide cavity 36, and the slide block 38 is limited by the inner wall of the slide cavity 36 in the degree of freedom of movement and can only slide left and right.
According to the embodiment, the following detailed description of the fixing device 905 includes that the fixing device 905 includes bilateral symmetry set up in the fixed ring 24 and the ascending open slot 42 of opening, be equipped with central symmetry in the open slot 42 and with the communicating fixed slot 53 of open slot 42, the fixed slot 53 is close to communicate with each other on the inner wall of thumb wheel 46 one side and is equipped with rotatory chamber 54, sliding connection in the fixed slot 53 with thumb wheel 46 fixed connection's arc pole 55, sliding connection has intercepting device 906 in the open slot 42.
In the following, the intercepting means 906 is described in detail according to an embodiment, said intercepting means 906 comprising a latch lever 31 slidingly coupled with said open slot 42, a through hole 43 which is abutted with the arc-shaped rod 55 is arranged in the bolt rod 31, clamping arms 23 which are positioned at the upper end of the fixing ring 24 and are symmetrical left and right are arranged in the lifting cavity 12, the lower end of the clamping arm 23 is provided with a rotary groove 28, a fixed shaft 29 fixedly connected with the bolt rod 31 is rotatably connected in the rotary groove 28, a torque spring 30 is connected between the bolt rod 31 and the rotary groove 28, the end surface of the clamping arm 23 close to the symmetrical center side is rotatably connected with a cloth roller 21, an intercepting net 22 capable of being wound on the surface of the wheel is connected between the cloth rollers 21, and the elastic coefficient of the torque spring 30 is large enough to ensure that an included angle is formed between the clamping arm 23 and the plug pin rod 31 and the clamping arm is stably placed.
The following describes in detail the use steps of an intersection control device for preventing the vehicle from escaping from a criminal with reference to fig. 1 to 4:
the base 11 is integrally installed in a road, and the upper end of the base 11 is flush with the road surface, so that a vehicle can conveniently pass through the base;
during interception, the starting motor 34 rotates the rotating wheel 44 through the transmission shaft 33, after the clamping rod 48 abuts against the limiting block 49, the arc-shaped rod 55 is driven by the shifting wheel 46 to slide into the through hole 43, at this time, the shifting wheel 46 is limited by the inner wall of the rotating cavity 54, the rotating wheel 44 continues to rotate, at this time, the clamping rod 48 is pulled by the connecting rod 50 to slide into the telescopic cavity 51, so that the limiting block 49 and the clamping rod 48 are separated from abutting, in the process, the transmission shaft 33 rotates the primary pulley 32, power sequentially passes through the belt 56 and the secondary pulley 40 to rotate the screw 16, so that the screw 16 rotates through threads to enable the lifting block 15 to move downwards, the baffle 17 is pulled by the pull rod 18 to slide towards the chute 20, the through hole 19 is opened, meanwhile, the power for moving downwards of the lifting block 15 sequentially passes through the sliding barrel 13, the inclined block 41, the connecting rod 39, the chain rod 26 and the hinge base 25 to push the fixing ring, after the vehicle passes by, the interception net 22 is wound on the surface of the wheel, and the clamping arm 23 is turned to the side where the vehicle advances, so that the vehicle is pulled;
after the interception is completed, the motor 34 is started to turn the rotating wheel 44 over, the arc-shaped rod 55 is pulled out of the through hole 43, the motor 34 is closed, the clamping arm 23 and the components connected with the clamping arm 23 are pulled out, a new group of intercepting devices 906 are replaced, and the motor 34 is started to reset the equipment.
The invention has the beneficial effects that: the invention adopts the form of the intercepting tuck net to restrain the rotation capacity of wheels driving the vehicle to advance, so that the vehicle loses the advancing power source, and uses a bolt type structure for the intercepting structure part to limit the freedom degree of up-and-down movement, so as to ensure that the vehicle can be stabilized at the point by equipment after passing, effectively prevent the vehicle from being damaged and balanced, and effectively prevent the vehicle from overturning and rotating under the action of inertia, ensure the safety of the arresters and pedestrians on the road surface, and reduce the material loss caused by arresting as much as possible.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.

Claims (1)

1. An intersection control device for preventing criminals from driving a vehicle to escape comprises a base;
a lifting cavity is arranged in the base, bilaterally symmetrical lifting devices are arranged in the lifting cavity, the lifting devices realize up-and-down movement through a screw rod rotationally connected with the lifting cavity, a limiting groove which is arranged on the inner wall of the lifting cavity and bilaterally symmetrical, and a lifting block which is slidably connected in the limiting groove and is in threaded connection with the screw rod, an auxiliary belt pulley positioned at the lower end of the lifting block is arranged on the screw rod, and a through hole is formed in the inner wall of the top end of the lifting cavity in a communicating manner;
a sliding door assembly is arranged in the through hole, the sliding door assembly is connected with a baffle in the sliding groove in a sliding manner through sliding grooves which are arranged in the through hole and are bilaterally symmetrical, the opening and closing state change of the through hole is realized, the inner wall of the bottom end of the lifting cavity is rotatably connected with a transmission shaft, a main belt wheel is arranged on the transmission shaft, a belt is connected between the main belt wheel and the auxiliary belt wheel, and a shifting device for shifting the equipment to move forty-five degrees every time during working is arranged on the transmission shaft;
the inner wall of the bottom end of the lifting cavity is provided with an anti-separation device which is controlled by the lifting device and is bilaterally symmetrical, the anti-separation device slides leftwards and rightwards through a connecting rod abutted against the lifting device, the connecting rod is hinged with a chain rod, a fixing device positioned on the outer side of the shifting device is arranged in the lifting cavity, the fixing device is arranged on a hinge seat which is bilaterally symmetrical on the fixing ring through a fixing ring positioned on the outer side of the shifting device, and the hinge seat is hinged with the chain rod, so that synchronous up-and-down movement is realized;
the lower end of the transmission shaft is in power connection with a motor embedded in the inner wall of the bottom end of the lifting cavity, the lifting device comprises a sliding barrel fixedly connected to the lower side of the lifting block and connected with the screw rod in a sliding mode, and an inclined plane block connected with the connecting rod in a sliding mode is arranged at the lower end of the sliding barrel;
the sliding door assembly comprises a pull rod hinged to the lower side of the baffle, and the pull rod is hinged to the end face, close to the symmetrical center, of the lifting block, and is connected with the lifting block in a hinged mode;
the shifting device comprises a shifting wheel which is rotatably connected to the transmission shaft, a transmission cavity is arranged in the shifting wheel, a rotating wheel which is positioned in the transmission cavity is arranged on the transmission shaft, a telescopic cavity is arranged in the rotating wheel, a clamping rod is slidably connected to the inner wall of the outer circle side of the telescopic cavity, the front end of the clamping rod is hinged to a connecting rod which is hinged to the inner wall of the telescopic cavity, a compression spring is connected between the clamping rod and the telescopic cavity, and a limiting block which is abutted to the clamping rod is arranged in the transmission cavity;
the anti-separation device comprises sliding cavities which are arranged at the lower end of the lifting cavity and are bilaterally symmetrical, the upper ends of the sliding cavities are communicated with slideways which are connected with the connecting rods in a sliding mode, resistance springs are connected between the connecting rods and the slideways, and sliding blocks which are fixedly connected with the connecting rods are connected in the sliding cavities in a sliding mode;
the fixing device comprises open slots which are arranged in the fixed ring in a bilateral symmetry manner and have upward openings, fixed slots which are arranged in the open slots and have centrosymmetry and are communicated with the open slots, a rotating cavity is communicated with the inner wall of one side of the fixed slots, which is close to the thumb wheel, an arc-shaped rod fixedly connected with the thumb wheel is connected in the fixed slots in a sliding manner, and an intercepting device is connected in the open slots in a sliding manner;
the intercepting device comprises a pin rod which is connected with the open slot in a sliding mode, a through hole which is abutted to the arc-shaped rod is formed in the pin rod, clamping arms which are located at the upper end of the fixing ring and are bilaterally symmetrical are arranged in the lifting cavity, a rotary groove is formed in the lower end of each clamping arm, a fixing shaft which is fixedly connected with the pin rod is rotationally connected in the rotary groove, a torque spring is connected between the pin rod and the rotary groove, a cloth roller is rotationally connected to the end face, close to the side of the symmetrical center, of each clamping arm, and an intercepting net which can be wound on the surface of the wheel is connected between the cloth.
CN201910679038.9A 2019-07-25 2019-07-25 Crossing control device for preventing criminals from driving away Expired - Fee Related CN110374029B (en)

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Application Number Priority Date Filing Date Title
CN201910679038.9A CN110374029B (en) 2019-07-25 2019-07-25 Crossing control device for preventing criminals from driving away

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Application Number Priority Date Filing Date Title
CN201910679038.9A CN110374029B (en) 2019-07-25 2019-07-25 Crossing control device for preventing criminals from driving away

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CN110374029B true CN110374029B (en) 2020-06-30

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110939082B (en) * 2019-12-10 2020-09-29 新昌冰银智能技术有限公司 Vehicle release device based on intelligent transportation system
CN111236108B (en) * 2020-03-17 2021-07-27 张宁 Escape-proof airport security inspection device
CN114457726A (en) * 2022-01-24 2022-05-10 北京微控工业网关技术有限公司 Vehicle interception system

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KR20050117225A (en) * 2004-06-10 2005-12-14 주식회사 금강엘리베이터 Vehicles breaker
KR20120120549A (en) * 2011-04-25 2012-11-02 장근진 Safety apparatus for crosswalk
CN105908643A (en) * 2016-06-17 2016-08-31 时维康 Multifunctional deceleration strip
CN108193617A (en) * 2017-12-29 2018-06-22 安吉安畅道路施救服务有限公司 A kind of fire-fighting blast barrier machine and its application method
CN108945499A (en) * 2018-08-28 2018-12-07 张帆 A kind of aerocraft on high protectiveness observation ground
CN109099773A (en) * 2018-09-27 2018-12-28 童崇辉 Ballistic-resistant article and its application method based on body mechanics
CN109137789A (en) * 2018-09-26 2019-01-04 孙泽东 A kind of roadblock of frontier inspection anti-terrorism

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Publication number Priority date Publication date Assignee Title
KR20050117225A (en) * 2004-06-10 2005-12-14 주식회사 금강엘리베이터 Vehicles breaker
KR20120120549A (en) * 2011-04-25 2012-11-02 장근진 Safety apparatus for crosswalk
CN105908643A (en) * 2016-06-17 2016-08-31 时维康 Multifunctional deceleration strip
CN108193617A (en) * 2017-12-29 2018-06-22 安吉安畅道路施救服务有限公司 A kind of fire-fighting blast barrier machine and its application method
CN108945499A (en) * 2018-08-28 2018-12-07 张帆 A kind of aerocraft on high protectiveness observation ground
CN109137789A (en) * 2018-09-26 2019-01-04 孙泽东 A kind of roadblock of frontier inspection anti-terrorism
CN109099773A (en) * 2018-09-27 2018-12-28 童崇辉 Ballistic-resistant article and its application method based on body mechanics

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Effective date of registration: 20210507

Address after: 226200 No.1 Xinglong Road, Chengbei Industrial Park, Qidong City, Nantong City, Jiangsu Province

Patentee after: Qidong Hezi New Material Co.,Ltd.

Address before: Room 4159, building 6, No. 1197, Bin'an Road, Binjiang District, Hangzhou City, Zhejiang Province

Patentee before: Zhejiang Zhichuang Enterprise Management Co.,Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200630