CN209485143U - Anti-riot steel fork - Google Patents
Anti-riot steel fork Download PDFInfo
- Publication number
- CN209485143U CN209485143U CN201821892777.3U CN201821892777U CN209485143U CN 209485143 U CN209485143 U CN 209485143U CN 201821892777 U CN201821892777 U CN 201821892777U CN 209485143 U CN209485143 U CN 209485143U
- Authority
- CN
- China
- Prior art keywords
- steel
- fork
- steel pipe
- arc
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
Anti-riot steel fork, including steel fork ontology, steel fork middle part are connected to steel pipe, two groups of locking mechanisms are equipped in steel fork, trigger mechanism are equipped on steel pipe, two groups of locking mechanisms pass through flexible strand respectively and connect with trigger mechanism；Locking mechanism: including being arranged in the intrinsic cambered way of steel fork and arc-shaped cavity, slideway side is connected with arc-shaped cavity, the first spring and arc fork arm are equipped in cambered way, there is directive wheel close to steel pipe one end axis connection in arc-shaped cavity, it is equipped with the one-way backstop mechanism connecting with fork arm in arc-shaped cavity, compression bar is hinged in notch, second spring is equipped between compression bar and traveller, it is fixedly connected with jacking block in compression bar one end, second spring pushes jacking block to be inserted in jack.The utility model can rapidly subdue ruffian, and ruffian can be effectively prevent to escape steel fork.
Description
Technical field
The utility model relates to anti-riot steel forks, belong to police equipment technical field.
Background technique
Anti-riot steel fork is for arresting the ruffian of hand-held sharp weapon, drunkard, with the danger such as infectiousness or mental disease class patient
The non-lethal short range operations weapon of personnel, is now widely used in security work and the counterterrorism operations of various public places
In.Antiriot fork product currently on the market mainly to fix based on steel fork or steel ring, fixed steel fork generally comprise steel fork handle and
The semicircle steel fork pawl for being fixedly connected on steel fork handle front end is resisted against obstruction in use, steel fork pawl is stretched to violence molecule
On object, to realize the purpose of control violence molecule, but some situations are that there is no obstacles for violence surrounding molecules, lead to steel fork
It cannot effectively use；On the other hand, violence molecule both hands catch steel fork that steel fork firmly slightly can be removed to waist chest position, hold very much
It easily escapes and escapes, steel fork does not have corresponding effect；And steel ring is common steel loop, if entangling a people with fixed steel loop
Be less susceptible to, arrest it is relatively difficult, it is time-consuming and laborious.
To solve the above-mentioned problems, it can be realized in existing patent there are also anti-riot steel fork and personnel at risk arrested
While, prevent personnel at risk from escaping, such as the patent No. " 205909738 U of CN ", entitled " Multifunctional antiriot steel fork "；Specially
Benefit number is " 103196330 B of CN ", entitled " police antiriot automatic steel rim "；And Patent No. " 207963637 U of CN ",
The drawbacks of entitled " a kind of anti-riot steel fork with holding function ", these anti-riot steel forks, is: 1, needing firmly trigger machine
After structure pushes against on personnel at risk's body, two clamping jaws could be triggered, personnel at risk is sandwiched, but some personnel at risk are
In the state of running, trigger mechanism is difficult to abut against personnel at risk's body, so that two clamping jaws are difficult to sandwich in steel fork.2, when having
When a little personnel at risk wear down jackets, it is easy to be damped by clothes, causes trigger mechanism that can not trigger.
Utility model content
The technical problem to be solved by the present invention is to provide anti-riot steel forks, can rapidly subdue ruffian, and
Ruffian can be effectively prevent to escape steel fork.
In order to solve the above-mentioned technical problem, the technical solution of the utility model are as follows:
Anti-riot steel fork, including steel fork ontology, steel fork middle part are connected to steel pipe, two groups of locking mechanisms are equipped in steel fork, in steel
Trigger mechanism is installed, two groups of locking mechanisms pass through flexible strand respectively and connect with trigger mechanism on pipe；
Locking mechanism: including being arranged in the intrinsic cambered way of steel fork and arc-shaped cavity, slideway side is connected with arc-shaped cavity
It is logical, it is equipped with the first spring and arc fork arm in cambered way, has directive wheel close to steel pipe one end axis connection in arc-shaped cavity,
The one-way backstop mechanism connecting with fork arm is equipped in arc-shaped cavity, flexible strand one end connect around directive wheel with one-way backstop mechanism；
Trigger mechanism: it including being provided with slide opening on outer wall of steel pipe along steel pipe axis, is offered on the steel pipe of slide opening one end
Jack further includes the traveller being arranged in steel pipe, and each flexible strand is fixedly connected with traveller far from one-way backstop mechanism one end,
Be equipped with the guide rod that connect with traveller in slide opening, opened up in traveller one end jagged, compression bar is hinged in notch, in compression bar and
It is equipped with second spring between traveller, is fixedly connected with jacking block in compression bar one end, second spring pushes jacking block to be inserted in jack.
The one-way backstop mechanism includes being provided with arc cavity wall equipped with ratchet, and slide plate is equipped in arc-shaped cavity, sliding
Plate one end is fixedly connected with fork arm, and other end is hinged with the pawl matched with ratchet, is fixedly connected with branch in slide plate side
Bracer, offers through-hole in supporting block, is equipped with third spring between supporting block and pawl, third spring push pawl against
On ratchet, flexible strand one end passes through and connect after through-hole with pawl in supporting block.
Briquetting is threaded on jacking block end face, briquetting is slided in slide opening.
The trigger mechanism further includes sliding sleeve of the housing outside steel pipe, and guide rod is resisted against on sliding sleeve running-on.
Further include that pressing mechanism of the steel pipe far from steel fork one end is set, the pressing mechanism include pull rod, the 4th spring,
Briquetting and the jackscrew that is mounted on steel tube end part of shifting block and axis connection of the axis connection in the steel pipe of jack side in steel tube end part, draw
Bar both ends are hinged with shifting block one end and briquetting one end respectively, offer pressing hole on square steel tube on briquetting, set in pressing hole
There is top pillar, top pillar lower end is fixedly connected with briquetting far from pull rod one end, pressing hole is exposed in top pillar upper end, on the steel pipe of top pillar side
It is fixedly connected with arc block, elastic slice is equipped in arc block, elastic slice is located above top pillar, and compression bar has oblique close to shifting block one end
Face, when jacking block is inserted in jack, shifting block is resisted against on compression bar inclined-plane far from pull rod one end, the 4th both ends of the spring respectively with pressure
Block is connected with jackscrew, and the 4th spring pulls or push the top pillar on briquetting to expose pressing hole.
Steel pipe threaded one end is connected with female connector, and female connector is fixedly connected with wooden extension rod.
The beneficial effects of the utility model are:
1, slideway can be sent out from two fork arms in chief commander's locking mechanism by trigger mechanism, to give personnel at risk
It arrests, the ruffian suitable for standing or running, and is quick on the draw, arrest rapidly.
2, fork arm is locked using pawl ratchet mechanism, effectively prevents fork arm from retracting, and then danger can be prevented
Personnel pull open fork arm, prevent it from escaping from steel fork.
3, driving traveller can be facilitated in steel pipe intrinsic displacement by sliding sleeve, is displaced traveller and drags fork arm Quick-return to slideway
In, so that people can pull fork arm to reset by sliding sleeve at once after once arresting unsuccessfully, carry out secondary arrest.
4, pressing mechanism can improve steel in the mode that triggering fork arm is released together of increase more than steel pipe end, the using and the reserved
Reliability when fork uses.
5, while wooden extension rod can be improved steel fork and arrest length, mitigate steel fork weight.
Detailed description of the invention
The utility model is described further with reference to the accompanying drawing:
Fig. 1 is the schematic perspective view of the utility model,
Fig. 2 is schematic perspective view of the utility model about locking mechanism,
Fig. 3 is the enlarged structure schematic diagram in Fig. 2 at A,
Fig. 4 is schematic perspective view of the utility model about trigger mechanism,
Fig. 5 is schematic perspective view of the utility model about trigger mechanism, and steel pipe is not shown in figure,
Fig. 6 is the schematic diagram of the section structure of the utility model about trigger mechanism.
In figure: steel fork 1, fork arm 3, female connector 4, trigger mechanism 5, sliding sleeve 6, one-way backstop mechanism 7, flexible strand 8, is pressed steel pipe 2
Press mechanism 9, cambered way 11, arc-shaped cavity 12, the first spring 31, extension rod 41, slide opening 51, jack 52, traveller 53, guide rod 54,
Second spring 55, jacking block 57, briquetting 58, slide plate 71, pawl 72, third spring 73, supporting block 74, ratchet 75, is led at compression bar 56
To wheel 81, shifting block 91, pull rod 92, briquetting 93, the 4th spring 95, arc block 96, elastic slice 97, jackscrew 98, top pillar 99.
Specific embodiment
As shown in Fig. 1 to 6, anti-riot steel fork, including 1 ontology of semicircle steel fork is connected to steel pipe 2 in the middle part of steel fork 1, in steel fork 1
Two groups of locking mechanisms are inside equipped with, two groups of locking mechanisms are symmetricly set on 1 two sides of steel fork, trigger mechanism 5 are equipped on steel pipe 2,
Two groups of locking mechanisms pass through flexible strand 8 respectively and connect with trigger mechanism 5, and flexible strand 8 preferably uses wirerope；
As shown in Fig. 2, locking mechanism: including being arranged in the intrinsic cambered way 11 of steel fork 1 and arc-shaped cavity 12, slideway 11
Side is connected with arc-shaped cavity 12, and the first spring 31 and arc fork arm 3 are equipped in cambered way 11, close in arc-shaped cavity 12
2 one end axis connection of steel pipe has directive wheel 81, and the one-way backstop mechanism 7 connecting with fork arm 3, flexible strand 8 are equipped in arc-shaped cavity 12
One end connect around directive wheel 81 with one-way backstop mechanism 7；
As shown in Fig. 4 to 6, trigger mechanism 5: including being provided with slide opening 51 on 2 outer wall of steel pipe along 2 axis of steel pipe, in cunning
Jack 52 is offered on 51 one end steel pipe 2 of hole, it further includes being arranged in steel pipe 2 that the diameter of jack 52, which is greater than 51 width of slide opening,
Traveller 53, each flexible strand are fixedly connected with traveller 53 far from 7 one end of one-way backstop mechanism, are equipped in slide opening 51 and traveller
53 guide rods 54 being threadedly coupled, open up jagged in 53 one end of traveller, compression bar 56 are hinged in notch, in compression bar 56 and traveller
It is equipped with second spring 55 between 53, is fixedly connected with jacking block 57 in 56 one end of compression bar, briquetting 58 is threaded on jacking block 57,
Second spring 55 pushes jacking block 57 to be inserted in jack 52.
The application method and the course of work of the utility model are as follows:
Under normal conditions, two first springs 31 push two fork arms 3 to be moved to outside slideway 11, at this time two fork arms 3 and steel fork 1
It is combined into a circular ring structure, the first spring 31 is in relaxed state, and one-way backstop mechanism 7 is in the lock state, due to unidirectional
Limitation of the non-return mechanism 7 to fork arm 3, so that fork arm 3 can not retract in slideway 11；In addition, second spring 55 is in compression shape
State, briquetting 93 are located at 51 lower section of slide opening, and briquetting 58 is located in slide opening 51.
When preparation, after can pulling guide rod 54, second spring 55 that jacking block 57 is pushed to enter in jack 52 along slide opening 51,
Traveller 53 is locked in steel pipe 2, and at the same time, the flexible strand connecting with traveller 53 pulls one-way backstop mechanism 7 in arc-shaped cavity
Movement in 12 pulls fork arm 3 to retract in cambered way 11 by one-way backstop mechanism 7, and fork arm 3 compresses the first spring 31.
In use, briquetting 58 is pressed by steel fork 1 after personnel at risk, so that briquetting 93 is moved to 51 lower section of slide opening,
First spring 31 pops up fork arm 3 from the first slideway 11, while fork arm 3 pulls traveller by one-way backstop mechanism 7 and flexible strand
53 move in steel pipe 2, and two fork arms 3 and steel fork 1 are combined into a circular ring structure out of the human body, and ruffian is arrested in realization.
When personnel at risk is when running, people can hold steel fork 1 and personnel at risk is followed to run, when steel fork 1 is close to danger
After dangerous personnel's body, briquetting 58 can be pressed, be two piece fork arm 3 is popped up from slideway 11, is arrested to ruffian；It is another
Aspect, this steel fork 1, which is arrested, not to be worn clothing by personnel at risk and is influenced, and is also able to achieve and is arrested.
As shown in Figures 2 and 3, the one-way backstop mechanism 7 includes being provided with 12 inner wall of arc-shaped cavity equipped with ratchet 75, in arc
Slide plate 71 is equipped in shape chamber 12,71 one end of slide plate is fixedly connected with fork arm 3, and other end is hinged with the spine matched with ratchet 75
Pawl 72 is fixedly connected with supporting block 74 in 71 side of slide plate, offers through-hole in supporting block 74, supporting block 74 and pawl 72 it
Between third spring 73 is installed, third spring 73 pushes pawl 72 to be resisted against on ratchet 75, and 8 one end of flexible strand passes through supporting block 74
It is connect after upper through-hole with pawl 72.
The working principle and the course of work of one-way backstop mechanism 7 are as follows: when fork arm 3 is moved out along slideway 11, unidirectionally
Non-return mechanism 7 and flexible strand 8 follow fork arm 3 to move out together, at the same time, third spring 73 push in real time pawl 72 against
On ratchet 75, when personnel at risk wants to shake off steel fork 1, fork arm 3 can because by pawl 72 and ratchet 75 it is self-locking due to can not
It retracts；When people need for fork arm 3 to return back in slideway 11, then flexible strand 8 must be pulled by traveller 53, utilize flexible strand
8 first pull pawl 72 to separate with ratchet 75, and rear fork 3 is pulled back to again in slideway 11, simultaneously because pulling the institute of traveller 53
Guide rod 54 is far from fork arm 3, and the personnel at risk being locked in steel fork 1 can not touch traveller, therefore personnel at risk can not
Steel fork 1 is voluntarily loosened, guarantees that steel fork 1 locks the safety and stability of people.
Briquetting 58 is threaded on 57 end face of jacking block, briquetting 58 is slided in slide opening 51.
As shown in Figures 4 and 5, the trigger mechanism 5 further includes sliding sleeve 6 of the housing outside steel pipe 2, and guide rod 54 is resisted against sliding sleeve
On 6 running-ons.Driving traveller 53 can be facilitated in 2 intrinsic displacement of steel pipe by sliding sleeve 6, be displaced traveller 53 and pull 3 Quick-return of fork arm
Into slideway 11, so that people can pull fork arm 3 to reset by sliding sleeve 6 at once after once arresting unsuccessfully, two are carried out
It is secondary to arrest.
It further include that pressing mechanism 9 of the steel pipe 2 far from 1 one end of steel fork, the pressing mechanism 9 are set as shown in Fig. 4 to 6
Including shifting block 91 in 52 side steel pipe 2 of jack of pull rod 92, the 4th spring 95, axis connection and axis connection in 2 end of steel pipe
Briquetting 93 and the jackscrew 98 for being mounted on 2 end of steel pipe, 92 both ends of pull rod are hinged with 91 one end of shifting block and 93 one end of briquetting respectively,
Pressing hole is offered on square steel tube 2 on briquetting 93, top pillar 99 is equipped in pressing hole, 99 lower end of top pillar and briquetting 93 are far from pull rod
92 one end are fixedly connected, pressing hole is exposed in 99 upper end of top pillar, are fixedly connected with arc block 96 on 99 side steel pipe 2 of top pillar,
Arc block 96 is equipped with elastic slice 97, and elastic slice 97 is located at 99 top of top pillar, and compression bar 56 has inclined-plane close to 91 one end of shifting block, works as jacking block
57 when being inserted in jack 52, and shifting block 91 is resisted against on 56 inclined-plane of compression bar far from 92 one end of pull rod, 95 both ends of the 4th spring difference
It is connect with briquetting 93 and jackscrew 98, the 4th spring 95 pulls or push the top pillar 99 on briquetting 93 to expose pressing hole.
When pressing mechanism 9 works: people, by 97 driving briquettings 93 rotation that pushes shrapnel, rotate briquetting 93 in handle one end
It drives shifting block 91 to rotate by pull rod 92, moulded rod 56 is pressed by shifting block 91, so that briquetting 93 is moved to the lower section of slide opening 51, allow two
Fork arm 3 is popped up from slideway 11, and ruffian is arrested in realization, is equivalent to 2 end of steel pipe more and is increased triggering fork arm 3 together and release
Mode, the using and the reserved, improve steel fork 1 use when reliability.
2 threaded one end of steel pipe is connected with female connector 4, and female connector 4 is fixedly connected with wooden extension rod 41.Wooden extension rod 41 can
While raising steel fork 1 arrests length, mitigate 1 weight of steel fork.
Claims (6)
1. anti-riot steel fork, including steel fork (1) ontology, steel fork (1) middle part is connected to steel pipe (2), it is characterised in that: in steel fork (1)
Equipped with two groups of locking mechanisms, be equipped on steel pipe (2) trigger mechanism (5), two groups of locking mechanisms pass through respectively flexible strand (8) with
Trigger mechanism (5) connection；
Locking mechanism: including setting in steel fork (1) intrinsic cambered way (11) and arc-shaped cavity (12), slideway (11) side and
Arc-shaped cavity (12) is connected, and the first spring (31) and arc fork arm (3) is equipped in cambered way (11), in arc-shaped cavity (12)
There are directive wheel (81) close to steel pipe (2) one end axis connection, the one-way non-return machine connecting with fork arm (3) is equipped in arc-shaped cavity (12)
Structure (7), flexible strand (8) one end connect around directive wheel (81) with one-way backstop mechanism (7)；
Trigger mechanism (5): including being provided with slide opening (51) on steel pipe (2) outer wall along steel pipe (2) axis, in slide opening (51) one end
Jack (52) are offered on steel pipe (2), further include the traveller (53) being arranged in steel pipe (2), and each flexible strand is stopped far from unidirectional
It goes back to mechanism (7) one end to be fixedly connected with traveller (53), the guide rod (54) connecting with traveller (53) is equipped in slide opening (51),
Traveller (53) one end opens up jagged, and compression bar (56) are hinged in notch, and the is equipped between compression bar (56) and traveller (53)
Two springs (55) are fixedly connected with jacking block (57) in compression bar (56) one end, and it is slotting that second spring (55) pushes jacking block (57) to be inserted in
In hole (52).
2. anti-riot steel fork according to claim 1, it is characterised in that: the one-way backstop mechanism (7) includes being provided with arc
Shape chamber (12) inner wall is equipped with ratchet (75), is equipped with slide plate (71) in arc-shaped cavity (12), and slide plate (71) one end and fork arm (3) are solid
Fixed connection, other end are hinged with the pawl (72) matched with ratchet (75), are fixedly connected with support in slide plate (71) side
Block (74) offers through-hole on supporting block (74), is equipped between supporting block (74) and pawl (72) third spring (73), the
Three springs (73) push pawl (72) to be resisted against on ratchet (75), flexible strand (8) one end pass through on supporting block (74) after through-hole with
Pawl (72) connection.
3. anti-riot steel fork according to claim 1, it is characterised in that: be threaded with briquetting on jacking block (57) end face
(58), briquetting (58) sliding in slide opening (51).
4. anti-riot steel fork according to claim 3, it is characterised in that: the trigger mechanism (5) further includes housing in steel pipe
(2) outside sliding sleeve (6), guide rod (54) are resisted against on sliding sleeve (6) running-on.
5. anti-riot steel fork according to claim 1, it is characterised in that: further include setting in steel pipe (2) separate steel fork (1) one
The pressing mechanism (9) at end, the pressing mechanism (9) include pull rod (92), the 4th spring (95), axis connection in jack (52) side
Shifting block (91) and axis connection in steel pipe (2) steel pipe (2) end briquetting (93) and be mounted on the jackscrew of steel pipe (2) end
(98), pull rod (92) both ends are hinged with shifting block (91) one end and briquetting (93) one end respectively, on briquetting (93) on square steel tube (2)
Pressing hole is offered, is equipped with top pillar (99) in pressing hole, top pillar (99) lower end is solid far from pull rod (92) one end with briquetting (93)
Pressing hole is exposed in fixed connection, top pillar (99) upper end, and arc block (96) are fixedly connected on top pillar (99) side steel pipe (2),
Arc block (96) is equipped with elastic slice (97), and elastic slice (97) is located above top pillar (99), and compression bar (56) has close to shifting block (91) one end
Have inclined-plane, when jacking block (57) be inserted in jack (52) it is interior when, it is oblique that shifting block (91) far from pull rod (92) one end is resisted against compression bar (56)
On face, the 4th spring (95) both ends are connect with briquetting (93) and jackscrew (98) respectively, and the 4th spring (95) pulls or push pressure
Top pillar (99) on block (93) exposes pressing hole.
6. according to claim 1 to 5 described in any item anti-riot steel forks, it is characterised in that: steel pipe (2) threaded one end, which is connected with, to be connect
It covers (4), female connector (4) is fixedly connected with wooden extension rod (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821892777.3U CN209485143U (en) | 2018-11-16 | 2018-11-16 | Anti-riot steel fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821892777.3U CN209485143U (en) | 2018-11-16 | 2018-11-16 | Anti-riot steel fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209485143U true CN209485143U (en) | 2019-10-11 |
Family
ID=68115905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821892777.3U Expired - Fee Related CN209485143U (en) | 2018-11-16 | 2018-11-16 | Anti-riot steel fork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209485143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341414A (en) * | 2018-11-16 | 2019-02-15 | 宜都市公安局 | Anti-riot steel fork |
-
2018
- 2018-11-16 CN CN201821892777.3U patent/CN209485143U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341414A (en) * | 2018-11-16 | 2019-02-15 | 宜都市公安局 | Anti-riot steel fork |
| CN109341414B (en) * | 2018-11-16 | 2023-10-27 | 宜都市公安局 | Explosion-proof steel fork |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109341414A (en) | Anti-riot steel fork | |
| KR101263995B1 (en) | Openable and closable two-pronged body holding device | |
| CN209485143U (en) | Anti-riot steel fork | |
| CN204594337U (en) | A kind of anti-riot constraint fork | |
| CN109876315A (en) | Anti- fear rope lifting device/drop device equipment | |
| CN205909738U (en) | Multi -functional anti -riot steel fork | |
| CN111408111B (en) | Portable novel arm rehabilitation training device | |
| CN108225100A (en) | A kind of fight against terrorism and violence captures fork | |
| CN201828195U (en) | Antiriot arresting device | |
| US7611413B2 (en) | Pinning system to control people | |
| CN202221888U (en) | Electricity pylon climbing protection device | |
| CN201497425U (en) | Warning foot hooking device | |
| CN208301910U (en) | Antipricking dialysis puncture needle | |
| CN209541542U (en) | A kind of security is anti-riot to arrest tool | |
| CN210051228U (en) | Police arresting device | |
| CN201715934U (en) | Antiriot robber-catching self-locking ring | |
| CN208349928U (en) | Stretch anti-riot steel fork | |
| CN201945249U (en) | Circumferential pre-tightening type safety controller | |
| CN211953866U (en) | Anti-riot ware of arresting | |
| CN205815073U (en) | The sliding trigger of a kind of shatter-resistant | |
| CN218991799U (en) | Telescopic handle of manual pump | |
| CN220002577U (en) | Portable transfusion auxiliary device | |
| CN210638580U (en) | Police arresting fork | |
| CN201740459U (en) | Telescopic baton type grabber | |
| CN209043120U (en) | The dual catching device of law enforcement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20191011 Termination date: 20211116 |