CN104815414B - Recreation climbing net - Google Patents

Recreation climbing net Download PDF

Info

Publication number
CN104815414B
CN104815414B CN201510181749.5A CN201510181749A CN104815414B CN 104815414 B CN104815414 B CN 104815414B CN 201510181749 A CN201510181749 A CN 201510181749A CN 104815414 B CN104815414 B CN 104815414B
Authority
CN
China
Prior art keywords
climbing
bolt
clamp nut
dictyosome
central support
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.)
Active
Application number
CN201510181749.5A
Other languages
Chinese (zh)
Other versions
CN104815414A (en
Inventor
章定长
全宁
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.)
KAIQI GROUP CO Ltd
Original Assignee
KAIQI GROUP CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KAIQI GROUP CO Ltd filed Critical KAIQI GROUP CO Ltd
Priority to CN201510181749.5A priority Critical patent/CN104815414B/en
Publication of CN104815414A publication Critical patent/CN104815414A/en
Application granted granted Critical
Publication of CN104815414B publication Critical patent/CN104815414B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Catching Or Destruction (AREA)

Abstract

The invention discloses a recreation climbing net. The recreation climbing net comprises an outer net body and a plurality of climbing pedals fixedly arranged in the outer net body and distributed lengthways at intervals, and further comprises a central support pillar, wherein the outer net body consists of latitudinal net cords and longitudinal net cords, which are mutually staggered and fixedly connected; the outer net body is fixedly arranged outside the central support pillar in a centrosymmetric manner; the upper end of the outer net body is fixed to the upper end of the central support pillar; a climbing inlet is formed in the lower end of the outer net body; a climbing space area communicated with the climbing inlet is formed between the central support pillar and the outer net body; the climbing pedals are arranged in the climbing space area in a spirally rising manner; and the inner side end of each climbing pedal is fixed to the central support pillar through support pillar fixing components, and the outer side end of each climbing pedal is fixed to the longitudinal net cords of the outer net body through outer net body fixing components. The recreation climbing net has the advantages of being reasonable in structural design and stable and reliable in assembly, facilitating miniaturization and being conductive to market popularization.

Description

One kind is travelled and climbs net
Technical field
The present invention relates to a kind of recreation facility, specifically refer to one kind and travel climb net.
Background technology
The children amusement facility that net is rising in recent years is climbed, its structure has generally comprised outer dictyosome and set in outer dictyosome Multilamellar is equipped with for climbing the climbing pedal of walking up and down.Child is climbed by carrying out longitudinal direction on each climbing pedal in outer dictyosome Climb and walk, play the effect taken exercise and entertain, it is deep to be welcome by child and the head of a family.
At present, it is existing travel climb net exist problem be:
In order to ensure the stability for climbing that respectively climbing pedal is fixed in net, need that the very big of net setting will be climbed, and pass through Substantial amounts of lifting rope, tie and junction button could be realized climbing being stably connected with for pedal, thus, cause to travel climbing net installation procedure Complexity, assembly cost is high, and time-consuming.
In addition, above-mentioned complicated attachment structure also directly result in it is traditional climb net cannot miniaturization, therefore, have impact on and climb net Marketing and sale.
The content of the invention
The invention aims to overcome the shortcoming and defect that prior art is present, and a kind of structure design is provided and is closed Reason, stable connection are reliable, easy to assembly, and net is climbed in various informative travelling of travelling.
For achieving the above object, the technical scheme is that include outer dictyosome, be fixedly installed on it is many in outer net body The climbing pedal of block longitudinally spaced distributions, also includes central support posts, and the outer dictyosome is mutual by latitude nettle and longitude nettle Staggeredly it is formed by fixedly connecting, the outer dictyosome structure that is centrosymmetric is fixedly installed on outside central support posts, the upper end of the outer dictyosome The upper end of central support posts is fixed on, the lower end of outer dictyosome is provided with climbing import, is between the central support posts and outer dictyosome The climbing space region communicated with climbing import, described polylith climbing pedal is arranged at around central support posts into spiral mode In climbing space region, and the medial extremity of climbing pedal is fixed in central support posts by support column fixation kit per block, and this is climbed The outboard end for climbing pedal is fixed on the longitude nettle of outer dictyosome by outer dictyosome fixation kit.By this setting, each climbing is stepped on The inside and outside two ends of plate are directly fixed on respectively in central support posts and outer dictyosome, it is therefore not necessary to using traditional lifting rope, binding strap Deng connector, it is possible to realize being stably connected with for climbing pedal, thus, arrangement of mechanism is simplified, it is convenient to process and assemble, and by This is advantageously implemented entirely to travel climbs the miniaturization of net, extends to travel and climbs the form of travelling of net.
It is that described support column fixation kit includes longitudinal connecting member assembly, is fixed on central support posts further to arrange On collateral strut and across the vertical bottom gripper shoe for being fixed on collateral strut outer end, be provided with least in described bottom gripper shoe The bottom gripper shoe connecting hole of one longitudinal direction, the described medial extremity for climbing pedal is provided with corresponding with bottom gripper shoe connecting hole Climbing pedal interconnecting hole, the quantity of described longitudinal connecting member assembly is corresponding with bottom gripper shoe connecting hole, and this is longitudinally connected Part assembly includes longitudinally connected bolt, and the longitudinally connected bolt includes positioning convex ring and is arranged at the upper and lower both sides of positioning convex ring Upper threaded connection section and lower threaded connection section, described lower threaded connection section is from top to bottom through bottom gripper shoe connecting hole and should The outer end of lower threaded connection section is screwed and is connected with lower clamp nut, and the lower surface of the positioning convex ring and lower clamp nut are distinguished It is fixedly clamped to be screwed on the both sides up and down of bottom gripper shoe, described upper threaded connection section and is connected with positioning convex ring, should Upper threaded connection section passes through from top to bottom climbing pedal interconnecting hole, and threaded connection on this relative to the top of upper positioning convex ring The outer end of section is screwed and is connected with clamp nut, and clamp nut and upper positioning convex ring are fixedly clamped respectively in climbing on this The both sides up and down of pedal.By this setting, being stably connected between climbing pedal and central support posts, Er Qieben are directly realized Arrange, it is easy to assembly reliable and stable.
Further setting is the longitudinally connected bolt-center hole that is provided centrally with of described longitudinally connected bolt, and described is vertical Inner little outer end is inserted with to the upper end of connecting bolt centre bore greatly and longitudinal section is the upper ring plug of wedge shape, outside upper ring plug End is exposed to outside longitudinally connected bolt-center hole, and on this ring plug and upper clamp nut female thread spiral interference engagement, The lower end in described longitudinally connected bolt-center hole be inserted with that inner little outer end is big and longitudinal section for wedge shape lower ring plug, lower ring The outer end of shape plug is exposed to outside longitudinally connected bolt-center hole, and the lower ring plug is done with the female thread spiral of lower clamp nut Relate to cooperation.By this setting, the setting of ring plug and lower ring plug on this is screwed in upper clamp nut or lower clamp nut When, upper ring plug is interfered with the mutual spiral of the female thread of upper clamp nut, and lower ring plug is mutual with the female thread of lower clamp nut Spiral is interfered so that upper clamp nut and lower clamp nut turn tighter and tighter, it is possible thereby to effectively prevent clamp nut and lower tight Gu nut comes off in amusement of children from longitudinally connected bolt, connective stability and safety are improve.
Further arrange is that the outboard end of described climbing pedal is provided with and matches somebody with somebody with corresponding the wearing of longitude nettle of outer dictyosome The outer connecting hole of climbing pedal, described outer dictyosome fixation kit includes second longitudinal direction connecting bolt, second longitudinal direction connection Bolt-center is provided with the second longitudinal direction connecting bolt centre bore matched somebody with somebody with the longitude nettle phase IPN of outer dictyosome, second longitudinal direction connection Be screwed on bolt and be connected with positioning convex ring on second, the second longitudinal direction connecting bolt relative on second positioning convex ring it is upper Portion is screwed and is connected with second through the outer connecting hole of climbing pedal, and the outer end of the second longitudinal direction connecting bolt from top to bottom Clamp nut, positioning convex ring is fixedly clamped respectively in the both sides up and down of climbing pedal on clamp nut and second on second for this. By this setting, being stably connected between climbing pedal and the longitude nettle of outer dictyosome, and this setting, assembling are directly realized Facilitate reliable and stable.
Further setting is that the upper end of described second longitudinal direction connecting bolt is inserted with inner little outer end greatly and longitudinal section is Ring plug on the second of wedge shape, the outer end of ring plug is exposed to outside second longitudinal direction connecting bolt centre bore on second, and this On two on ring plug and second clamp nut female thread spiral interference engagement.By this setting, the clamp nut spiral shell on second When stricture of vagina is fixed, the mutual spiral of the female thread of clamp nut is interfered on ring plug and second on second so that clamp nut on second Turn tighter and tighter, it is possible thereby to effectively prevent clamp nut on second from coming off from second longitudinal direction connecting bolt in amusement of children, Improve connective stability and safety.
In sum, it is an advantage of the invention that reasonable in design, assembles reliable and stable, and be conducive to climbing the small-sized of net Change, be easy to climb the marketing of net.
The present invention is described further with reference to specification drawings and specific embodiments.
Description of the drawings
Fig. 1 specific embodiment of the invention structural representations;
Fig. 2 specific embodiment of the invention climbs the connection diagram of pedal and central support posts;
Fig. 3 is the partial exploded view of Fig. 2;
Fig. 4 specific embodiment of the invention climbs the connection diagram of pedal and longitude nettle;
Fig. 5 is the partial exploded view of Fig. 4
Fig. 6 is the axonometric chart of the longitudinal connecting member assembly of the present invention;
Fig. 7 is the sectional view of Fig. 6.
Specific embodiment
The present invention is specifically described below by embodiment, is served only for being further described the present invention, no It is understood that for limiting the scope of the present invention, the technician in the field can be according to the content of foregoing invention to the present invention Make some nonessential modifications and adaptations.
Specific embodiment of the invention as shown in figs. 1-7, includes outer dictyosome 1, is fixedly installed in outer dictyosome 1 The climbing pedal 2 of polylith longitudinally spaced distributions, also includes central support posts 3, and the outer dictyosome 1 is by latitude nettle 11 and longitude net Restrict 12 it is interlaced be formed by fixedly connecting, the outer dictyosome 1 structure that is centrosymmetric is fixedly installed on outside central support posts 3, and this is outer The upper end of central support posts 3 is fixed in the upper end of dictyosome 1, and the lower end of outer dictyosome 1 is provided with climbing import 13, the central support posts It is the climbing space region 14 communicated with climbing import 13 between 3 and outer dictyosome 1, described polylith climbs pedal 2 around central supported 3 one-tenth spiral modes of post are arranged in climbing space region 14, and the medial extremity of climbing pedal 2 fixes group by support column per block Part 4 is fixed in central support posts 3, and the outboard end of the climbing pedal 2 is fixed on the Jing of outer dictyosome by outer dictyosome fixation kit 5 On degree nettle 12.
Used as specifically, described support column fixation kit 4 includes longitudinal connecting member assembly 6, is fixed on the present embodiment Collateral strut 41 in central support posts 3 and across the vertical bottom gripper shoe 42 for being fixed on collateral strut outer end, described bottom It is provided with two symmetrical and longitudinally disposed bottom gripper shoe connecting holes 421 on fagging 42, the inner side of described climbing pedal 2 End is provided with the climbing pedal interconnecting hole 21 corresponding with bottom gripper shoe connecting hole 421, described longitudinal connecting member assembly 6 Quantity is corresponding with bottom gripper shoe connecting hole 42, and the longitudinal connecting member assembly 6 includes longitudinally connected bolt 61, and this is longitudinally connected Bolt 61 includes positioning convex ring 611 and is arranged at the upper threaded connection section 612 of the upper and lower both sides of positioning convex ring and lower threaded connection Section 613, described lower threaded connection section 613 is from top to bottom through bottom gripper shoe connecting hole 421 and the lower threaded connection section 613 Outer end is screwed and is connected with lower clamp nut 62, and the lower surface of the positioning convex ring 611 and lower clamp nut 62 are clamped respectively admittedly It is screwed on the both sides up and down of bottom gripper shoe 42, described upper threaded connection section 612 and is connected with positioning convex ring 63, should Upper threaded connection section 612 passes through from top to bottom climbing pedal interconnecting hole 21 relative to the top of upper positioning convex ring 63, and on this The outer end of threaded connection section 612 is screwed and is connected with clamp nut 64, clamp nut 64 and upper positioning convex ring 63 on this It is fixedly clamped respectively in the both sides up and down of climbing pedal 2.
Additionally, the longitudinally connected bolt 61 described in the present embodiment is provided centrally with longitudinally connected bolt-center hole 614, institute The upper end in the longitudinally connected bolt-center hole 614 stated is inserted with inner little outer end greatly and longitudinal section is the upper ring plug 65 of wedge shape, The outer end of upper ring plug 65 is exposed to outside longitudinally connected bolt-center hole 614, and ring plug 65 and upper clamp nut 64 on this Female thread spiral interference engagement, it is big and vertical that the lower end in described longitudinally connected bolt-center hole 614 is inserted with inner little outer end Section is the lower ring plug 66 of wedge shape, and the outer end of lower ring plug 66 is exposed to outside longitudinally connected bolt-center hole 614, and under this The female thread spiral interference engagement of ring plug 66 and lower clamp nut 62.
In addition, described in the present embodiment climbing pedal 2 outboard end be provided with it is corresponding with the longitude nettle 12 of outer dictyosome The outer connecting hole 22 of the climbing pedal matched somebody with somebody is worn, described outer dictyosome fixation kit 5 includes second longitudinal direction connecting bolt 51, and this second Longitudinally connected bolt 51 is provided centrally with the second longitudinal direction connecting bolt centre bore matched somebody with somebody with the phase IPN of longitude nettle 12 of outer dictyosome 511, it is screwed on second longitudinal direction connecting bolt 51 and is connected with positioning convex ring 512 on second, the second longitudinal direction connecting bolt 51 Relative to positioning convex ring 512 on second top from top to bottom through the outer connecting hole 22 of climbing pedal, and second longitudinal direction connection The outer end of bolt 51 is screwed and is connected with clamp nut 52 on second, the convex on clamp nut 52 and second on second Ring 512 is fixedly clamped respectively in the both sides up and down of climbing pedal 2, additionally, the second longitudinal direction connecting bolt 51 described in the present embodiment Upper end be inserted with that inner little outer end is big and longitudinal section is ring plug 53 on the second of wedge shape, on second outside the outer end of ring plug 53 It is exposed to outside second longitudinal direction connecting bolt centre bore 511, and the interior spiral shell of the clamp nut 52 on ring plug 53 and second on second Stricture of vagina spiral interference engagement.
In addition, in order to reduce parts manufacturing cost, improving the uniformity of parts, the present embodiment, described outer dictyosome Fixation kit 5 is adopted and the identical structure setting of longitudinal connecting member assembly 6, is stepped on realizing that same parts are respectively applied to climbing The inside and outside two ends of plate are fixedly connected.As accordingly, positioning convex ring 512 and the structure phase one of upper positioning convex ring 63 on above-mentioned second Cause, ring plug 53 is consistent with the structure of upper ring plug 65 on second, clamp nut 52 and the structure phase of upper clamp nut 64 on second Unanimously.

Claims (4)

1. one kind is travelled and climbs net, is included outer dictyosome, the climbing of the polylith longitudinally spaced distributions being fixedly installed in outer net body and is stepped on Plate, it is characterised in that:Central support posts are also included, the outer dictyosome is fixedly connected by latitude nettle is interlaced with longitude nettle Form, the outer dictyosome structure that is centrosymmetric is fixedly installed on outside central support posts, center is fixed in the upper end of the outer dictyosome The upper end of dagger, the lower end of outer dictyosome is provided with climbing import, is between the central support posts and outer dictyosome and climbing import phase Logical climbing space region, described polylith climbing pedal is arranged at climbing space region around central support posts into spiral mode It is interior, and the medial extremity of climbing pedal is fixed in central support posts by support column fixation kit per block, outside the climbing pedal Side is fixed on the longitude nettle of outer dictyosome by outer dictyosome fixation kit, and described support column fixation kit includes longitudinal direction Connector assembly, the collateral strut being fixed in central support posts and support across the vertical bottom for being fixed on collateral strut outer end Plate, is provided with the bottom gripper shoe connecting hole of at least one longitudinal direction, the described medial extremity for climbing pedal in described bottom gripper shoe It is provided with the climbing pedal interconnecting hole corresponding with bottom gripper shoe connecting hole, the quantity of described longitudinal connecting member assembly and bottom Gripper shoe connecting hole is corresponding, and the longitudinal connecting member assembly includes longitudinally connected bolt, and the longitudinally connected bolt includes fixed Position bulge loop and the upper threaded connection section and lower threaded connection section that are arranged at the upper and lower both sides of positioning convex ring, described lower threaded connection section Bottom gripper shoe connecting hole being passed through from top to bottom and the lower outer end for being threadedly coupled section being screwed and is connected with lower clamp nut, this is determined The lower surface of position bulge loop and lower clamp nut are fixedly clamped respectively in the both sides up and down of bottom gripper shoe, described upper threaded connection section On be screwed and be connected with positioning convex ring, the top that section is threadedly coupled on this relative to upper positioning convex ring is from top to bottom through climbing Climb pedal interconnecting hole, and the outer end of section is threadedly coupled on this is screwed and be connected with clamp nut, on this clamp nut with And upper positioning convex ring is fixedly clamped respectively in the both sides up and down of climbing pedal.
2. one kind according to claim 1 is travelled and climbs net, it is characterised in that:Described longitudinally connected bolt it is centrally disposed The upper end for having longitudinally connected bolt-center hole, described longitudinally connected bolt-center hole is inserted with inner little outer end greatly and longitudinal section For the upper ring plug of wedge shape, the outer end of upper ring plug is exposed to outside longitudinally connected bolt-center hole, and on this ring plug with it is upper The female thread spiral interference engagement of clamp nut, it is big that the lower end in described longitudinally connected bolt-center hole is inserted with inner little outer end And longitudinal section is the lower ring plug of wedge shape, the outer end of lower ring plug is exposed to outside longitudinally connected bolt-center hole, and the lower ring The female thread spiral interference engagement of shape plug and lower clamp nut.
3. one kind according to claim 1 is travelled and climbs net, it is characterised in that:The outboard end of described climbing pedal is provided with Corresponding with the longitude nettle of outer dictyosome to wear the outer connecting hole of the climbing pedal matched somebody with somebody, described outer dictyosome fixation kit includes second Longitudinally connected bolt, the second longitudinal direction connecting bolt is provided centrally with the second longitudinal direction matched somebody with somebody with the longitude nettle phase IPN of outer dictyosome Connecting bolt centre bore, is screwed on second longitudinal direction connecting bolt and is connected with positioning convex ring on second, the second longitudinal direction connection Bolt relative to positioning convex ring on second top from top to bottom through the outer connecting hole of climbing pedal, and second longitudinal direction connection spiral shell The outer end of bolt is screwed and is connected with clamp nut on second, and positioning convex ring is pressed from both sides respectively on clamp nut and second on second for this It is tightly fixed on the both sides up and down of climbing pedal.
4. one kind according to claim 3 is travelled and climbs net, it is characterised in that:The upper end of described second longitudinal direction connecting bolt It is inserted with inner little outer end greatly and longitudinal section is ring plug on the second of wedge shape, the outer end of ring plug exposes to second and indulges on second To outside connecting bolt centre bore, and the female thread spiral interference engagement of the clamp nut on ring plug and second on second.
CN201510181749.5A 2015-04-16 2015-04-16 Recreation climbing net Active CN104815414B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510181749.5A CN104815414B (en) 2015-04-16 2015-04-16 Recreation climbing net

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510181749.5A CN104815414B (en) 2015-04-16 2015-04-16 Recreation climbing net

Publications (2)

Publication Number Publication Date
CN104815414A CN104815414A (en) 2015-08-05
CN104815414B true CN104815414B (en) 2017-04-12

Family

ID=53726044

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510181749.5A Active CN104815414B (en) 2015-04-16 2015-04-16 Recreation climbing net

Country Status (1)

Country Link
CN (1) CN104815414B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106522597A (en) * 2015-09-10 2017-03-22 李彰浩 Child cafe theme fairground system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20112363U1 (en) * 2001-07-20 2001-12-20 Udb Urban Design Berlin Gmbh Rope play equipment with external scaffolding
WO2002072209A1 (en) * 2001-03-13 2002-09-19 Georg Lauterbach Climbing device and arrangement
CN2617421Y (en) * 2003-04-16 2004-05-26 叶义国 Climbing net
CN202590231U (en) * 2011-12-29 2012-12-12 安徽原创科普技术有限公司 Sports equipment used for climbing
CN203886180U (en) * 2014-04-21 2014-10-22 杭州河马龙儿童游乐有限公司 Children crawling entertainment device
CN204147467U (en) * 2014-08-21 2015-02-11 河南索易文化发展有限公司 A kind of children climb recreational facilities
CN204619259U (en) * 2015-04-16 2015-09-09 凯奇集团有限公司 One is travelled and is climbed net

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002072209A1 (en) * 2001-03-13 2002-09-19 Georg Lauterbach Climbing device and arrangement
DE20112363U1 (en) * 2001-07-20 2001-12-20 Udb Urban Design Berlin Gmbh Rope play equipment with external scaffolding
CN2617421Y (en) * 2003-04-16 2004-05-26 叶义国 Climbing net
CN202590231U (en) * 2011-12-29 2012-12-12 安徽原创科普技术有限公司 Sports equipment used for climbing
CN203886180U (en) * 2014-04-21 2014-10-22 杭州河马龙儿童游乐有限公司 Children crawling entertainment device
CN204147467U (en) * 2014-08-21 2015-02-11 河南索易文化发展有限公司 A kind of children climb recreational facilities
CN204619259U (en) * 2015-04-16 2015-09-09 凯奇集团有限公司 One is travelled and is climbed net

Also Published As

Publication number Publication date
CN104815414A (en) 2015-08-05

Similar Documents

Publication Publication Date Title
CN104815414B (en) Recreation climbing net
US10730577B2 (en) Two-wheeled self-balancing scooter
CN204619259U (en) One is travelled and is climbed net
US20090054211A1 (en) Trampoline having cushion mechanism
TWM375528U (en) Balance training equipment
CN204543379U (en) To travel the syndeton of the middle support column of climbing net and climbing pedal
CN107882826A (en) It is a kind of special to be easily assembled securing member
CN206027096U (en) Tunnel toy children that crawl get into cave
CN209739248U (en) Toy vehicle body
CN207324038U (en) A kind of novel children damping type scooter
CN219050221U (en) Hula hoop unit section and hula hoop
CN110962966A (en) Lighting device for mountain bike
CN206016104U (en) A kind of connector for assembling guardrail
CN208498694U (en) A kind of down tube structure of cycle frame
CN219071945U (en) Trampoline chassis structure convenient to fast assembly
CN209347999U (en) The high lotus type trampoline of anti-pull-down strength
CN205549337U (en) Novel trampoline
CN203087735U (en) Weight-increasing sole
KR102557422B1 (en) Net Playground Rope Fixing Structure
CN104533274B (en) The upright fire-fighting rack of concatenation type
CN209159927U (en) Integral battery seat and motor cabinet
CN207429669U (en) A kind of children's combination ladder
CN215995500U (en) Shoe rack of body-building vehicle
CN205558375U (en) Reassembling type swimming pool bottom stretching strap tensioning texture
CN108757682A (en) A kind of special rotation assembly type securing member

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant