CN217448931U - Splicing track building block balance toy - Google Patents

Splicing track building block balance toy Download PDF

Info

Publication number
CN217448931U
CN217448931U CN202220358775.6U CN202220358775U CN217448931U CN 217448931 U CN217448931 U CN 217448931U CN 202220358775 U CN202220358775 U CN 202220358775U CN 217448931 U CN217448931 U CN 217448931U
Authority
CN
China
Prior art keywords
track
building block
building
toy
splicing
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
CN202220358775.6U
Other languages
Chinese (zh)
Inventor
吴剑锋
潘晨晨
沈小婧
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.)
Zhejiang University of Technology ZJUT
Original Assignee
Zhejiang University of Technology ZJUT
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 Zhejiang University of Technology ZJUT filed Critical Zhejiang University of Technology ZJUT
Priority to CN202220358775.6U priority Critical patent/CN217448931U/en
Application granted granted Critical
Publication of CN217448931U publication Critical patent/CN217448931U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Toys (AREA)

Abstract

The utility model discloses a track building blocks balanced toy that can splice relates to ball maze class toy technical field. This balanced toy of track building blocks: the building block comprises a building plate, a splicing track building block, a splicing interaction building block, a rolling ball and a balance base. The ball maze toy aims to overcome the defects that the existing ball maze toy is single in playing method and not strong in interactivity. The track maze of the utility model is formed by combining splicing track building blocks and splicing interaction building blocks, and the degree of freedom and the interactivity of the maze track are higher; while adding new play to balance the base may provide challenges of varying difficulty. Through the utility model discloses can promote ball maze class toy's playability, interactive and interest, temper children's thinking ability and creativity.

Description

可拼接的轨道积木平衡玩具Linkable track block balance toy

技术领域technical field

本实用新型涉及滚珠迷宫类玩具技术领域,具体来说,涉及可拼接的轨道积木平衡玩具。The utility model relates to the technical field of ball labyrinth toys, in particular to a splicable track building block balance toy.

背景技术Background technique

玩具在每个孩童的成长过程中扮演了重要的角色,不仅为孩子带来了快乐,还能给孩子带来心智和各项技能的锻炼。Toys play an important role in the growth of every child, not only bringing happiness to the child, but also bringing the child's mind and skills to exercise.

滚珠迷宫类玩具可以锻炼儿童的逻辑思维能力和手眼协调能力,但现有的滚珠迷宫类玩具只有某一条确定的路径,如现有公开号CN212235957U的一种3D迷宫玩具,尽管将二维的迷宫轨道扩展为三维轨道,但是仍然存在玩具玩法单一,多次玩耍后容易丧失兴趣的缺点;同时该类玩具互动性不强,玩家的想法与实际玩法的冲突得不到协调,阻碍了儿童创造力、思维能力和自信心的提升。Ball maze toys can exercise children's logical thinking ability and hand-eye coordination ability, but the existing ball maze toys only have a certain path, such as a 3D maze toy with the existing publication number CN212235957U, although the two-dimensional maze The track is extended to a three-dimensional track, but there is still the disadvantage that the toy has a single gameplay, and it is easy to lose interest after repeated play; at the same time, this type of toy is not very interactive, and the conflict between the player's ideas and the actual gameplay cannot be coordinated, hindering children's creativity. , improve thinking ability and self-confidence.

实用新型内容Utility model content

本实用新型针对背景技术中的不足,提供了一种可拼接的轨道积木平衡玩具,通过本实用新型得到的轨道积木平衡玩具可玩性强,互动性强。Aiming at the deficiencies in the background technology, the utility model provides a splicable track building block balance toy. The track building block balance toy obtained by the utility model has strong playability and strong interaction.

为实现上述目的,本实用新型技术解决方案如下:可拼接的轨道积木平衡玩具,包括搭建板、可拼接轨道积木块、可拼接互动积木块、滚珠和平衡底座,所述可拼接轨道积木块与可拼接互动积木块在搭建板的上表面自由拼装形成路径可切换的迷宫轨道,所述滚珠置于迷宫轨道中,所述平衡底座安装在搭建板的下表面。In order to achieve the above purpose, the technical solution of the present invention is as follows: a splicable track building block balance toy, including a building board, a splicable track building block, a splicable interactive building block, a ball and a balance base, the splicable track building block and The splicable interactive building blocks are freely assembled on the upper surface of the building board to form a labyrinth track with switchable paths, the balls are placed in the labyrinth track, and the balance base is installed on the lower surface of the building board.

为了构成多种迷宫轨道路径,提升玩具的可玩性,同时为了使积木块与搭建板连接方便且牢固,本实用新型提供另一种优选方案。所述搭建板表面分布有通孔,所述可拼接轨道积木块的上表面设有轨道槽,所述可拼接轨道积木块的下表面设有凸柱。所述通孔用于积木块凸柱插入固定,同时该通孔深度足够可拼接轨道积木块和平衡底座相对插入,互不干扰;同时将完整的迷宫轨道拆分成可拼接多种轨道路径的可拼接轨道积木块。In order to form a variety of labyrinth track paths, improve the playability of the toy, and at the same time to make the connection between the building block and the building board convenient and firm, the present invention provides another preferred solution. Through holes are distributed on the surface of the building board, the upper surface of the splicable track building block is provided with a track groove, and the lower surface of the splicable track building block is provided with a convex column. The through hole is used for the insertion and fixation of the protruding column of the building block, and the depth of the through hole is sufficient to insert the rail building block and the balance base relative to each other without interfering with each other; Linkable track blocks.

进一步的,为了降低可拼接轨道积木块加工难度。所述可拼接轨道积木块的下表面设有的凸柱为两个位于对角的凸柱。Further, in order to reduce the difficulty of processing the splicable track blocks. The protruding pillars provided on the lower surface of the splicable track building blocks are two protruding pillars located at opposite corners.

为了方便可拼接轨道积木块与搭建板连接方便,本实用新型提供另一种优选方案。所述搭建板与可拼接轨道积木块的连接方式为磁力吸附。取消凸柱与通孔的连接结构而采用磁力吸附的方式,保证了连接可靠性同时也更加美观。In order to facilitate the connection between the splicable track building blocks and the building board, the present invention provides another preferred solution. The connection mode of the building board and the splicable track building blocks is magnetic adsorption. The connection structure between the convex post and the through hole is cancelled and the magnetic adsorption method is adopted, which ensures the connection reliability and makes the connection more beautiful.

为了构建不同轨道路径的迷宫轨道,提升迷宫轨道的趣味性,可拼接轨道积木块设定多种类型,本实用新型提供另一种优选方案。所述可拼接轨道积木块包括:直线轨道积木块、单向转弯轨道积木块、十字路口轨道积木块、障碍轨道积木块和端点轨道积木块。In order to construct a labyrinth track with different track paths and improve the fun of the labyrinth track, various types of track building blocks can be spliced together, and the present invention provides another preferred solution. The splicable track building blocks include: straight track building blocks, one-way turning track building blocks, intersection track building blocks, obstacle track building blocks and endpoint track building blocks.

为了提升玩具的互动性,本实用新型提供另一种优选方案。所述可拼接互动积木块包括转向积木块和活动连接在转向积木块上的活动积木块,所述转向积木块上表面设有轨道槽,所述活动积木块水平旋转可使滚珠切换到转向积木块轨道槽的不同路径。In order to improve the interactivity of the toy, the present invention provides another preferred solution. The splicable interactive building blocks include a turning building block and a movable building block movably connected to the turning building block. The upper surface of the turning building block is provided with a track groove, and the horizontal rotation of the movable building block can make the balls switch to the turning building block. Different paths for block track slots.

进一步的,为了便于可拼接互动积木块活动。所述活动积木块为带有缺口的圆环状或者中心带圆孔的五角星状。活动积木块与转向积木块轨道槽配合,实现切换滚珠轨道路径的功能。Further, in order to facilitate the activities of splicable interactive building blocks. The movable building blocks are in the shape of a ring with a notch or a five-pointed star with a hole in the center. The movable building block cooperates with the track groove of the steering building block to realize the function of switching the ball track path.

为了使平衡底座方便安装,且实现搭建板的多角度倾斜功能,本实用新型提供另一种优选方案。所述平衡底座为半球状或者圆台状,所述平衡底座可使搭建板倾斜。所述半球状的平衡底座平面端设有与搭建板连接的凸柱,所述平衡底座插接在搭建板的不同位置会带来不同难度的平衡挑战。In order to facilitate the installation of the balance base and realize the multi-angle tilting function of the building board, the present invention provides another preferred solution. The balance base is hemispherical or truncated, and the balance base can tilt the building board. The flat end of the hemispherical balance base is provided with a convex column connected to the building board, and the insertion of the balance base at different positions of the building board will bring balance challenges of different difficulty.

为了方便滚珠沿迷宫轨道运动,所述滚珠与迷宫轨道的槽沟尺寸配合,可在迷宫轨道中自由滚动,本实用新型提供另一种优选方案。所述迷宫轨道的横截面为圆弧形,所述滚珠超出轨道上边缘的高度为滚珠直径的1/3。所述迷宫轨道玩具有一定挑战难度。In order to facilitate the movement of the ball along the labyrinth track, the ball and the groove of the labyrinth track are matched in size and can roll freely in the labyrinth track. The present invention provides another preferred solution. The cross section of the labyrinth track is arc-shaped, and the height of the ball beyond the upper edge of the track is 1/3 of the diameter of the ball. The labyrinth track toy has certain challenges.

总体而言,通过本实用新型所构思的以上技术方案与现有技术相比,能够取得下列有益效果:In general, compared with the prior art, the following beneficial effects can be achieved through the above technical solutions conceived by the present utility model:

1.功能多样的可拼接轨道积木块自由组合,提升了迷宫轨道多样性,使玩具更有可玩性。1. The free combination of various splicable track blocks improves the diversity of the labyrinth track and makes the toy more playable.

2.可拼接互动积木块与可拼接轨道积木块的配合,为迷宫轨道提供更多可能性,也增加了玩家与迷宫轨道玩具的互动性。2. The combination of the splicable interactive building blocks and the splicable track building blocks provides more possibilities for the labyrinth track, and also increases the interaction between the player and the labyrinth track toys.

3.半球平衡底座改变了迷宫轨道的玩法,让玩具更有挑战性。3. The hemispherical balance base changes the play of the labyrinth track, making the toy more challenging.

附图说明Description of drawings

附图1是本实施例1的主体结构俯视图。FIG. 1 is a top view of the main structure of the first embodiment.

附图2是本实施例1的主体结构侧视图。FIG. 2 is a side view of the main structure of the first embodiment.

附图3是本实施例1中搭建板细节图。FIG. 3 is a detailed view of the construction board in Embodiment 1. FIG.

附图4是本实施例1中可拼接轨道积木块和可拼接互动积木块细节图。FIG. 4 is a detailed view of the splicable track building blocks and the splicable interactive building blocks in the first embodiment.

附图5是本实施例1中可拼接轨道积木块细节图。FIG. 5 is a detailed view of the splicable track building blocks in Embodiment 1. FIG.

附图6是本实施例1中半球状平衡底座的细节图。FIG. 6 is a detailed view of the hemispherical balance base in Embodiment 1. FIG.

图中各标号含义:1-搭建板,2-滚珠,3-可拼接轨道积木块,4-平衡底座,5-平衡底座凸柱,6-直线轨道积木块,7-单向转弯轨道积木块,8-十字路口轨道积木块,9-端点轨道积木块,10-障碍轨道积木块,11-转向积木块,12-活动积木块,13-摇杆,14-可拼接轨道积木块凸柱,15-轨道槽。The meanings of the symbols in the figure: 1-building board, 2-ball, 3-jointable track blocks, 4-balanced base, 5-balanced base convex column, 6-straight track blocks, 7-one-way turning track blocks , 8- Crossroad track blocks, 9- Endpoint track blocks, 10- Obstacle track blocks, 11- Steering blocks, 12- Active blocks, 13- Joystick, 14- Spliceable track blocks, 15 - Track slot.

具体实施方式Detailed ways

以下结合附图详细说明本实用新型的具体实施方式,使本领域的技术人员更清楚地理解如何实践本实用新型。尽管结合其优选的具体实施方案描述了本实用新型,但这些实施方案只是阐述,而不是限制本实用新型的范围。The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand how to practice the present invention. Although the present invention has been described in conjunction with its preferred specific embodiments, these embodiments are intended to illustrate rather than limit the scope of the present invention.

实施例1Example 1

如图1所示,搭建板1的上方组合安装可拼接轨道积木块3、转向积木块11和活动积木块12而形成轨道迷宫,滚珠2在所述轨道迷宫中滚动。As shown in FIG. 1 , a splicable track building block 3 , a turning building block 11 and a movable building block 12 are assembled on the top of the building board 1 to form a track labyrinth, and the ball 2 rolls in the track labyrinth.

如图2所示,平衡底座4平面端设有4个平衡底座凸柱5,平衡底座4可插接在搭建板1下方。平衡底座凸柱5插接在搭建板1的不同位置会带来不同难度的平衡挑战。As shown in FIG. 2 , the flat end of the balance base 4 is provided with four balance base protruding columns 5 , and the balance base 4 can be plugged under the construction board 1 . Plugging the balance base protruding column 5 at different positions of the building board 1 will bring about balance challenges of different difficulty.

如图3所示,搭建板1表面均匀分布有12*12个圆形通孔,搭建板1的厚度足够可拼接轨道积木块3与平衡底座4同时插入,互不干扰。As shown in Figure 3, there are 12*12 circular through holes evenly distributed on the surface of the building board 1. The thickness of the building board 1 is enough to insert the rail blocks 3 and the balance base 4 at the same time without interfering with each other.

如图4所示,积木块按功能可分为7种,数量共有38个:分别为6个直线轨道积木块6、12个单向转弯轨道积木块7、4个十字路口轨道积木块8、4个端点轨道积木块9、2个障碍轨道积木块10、8个转向积木块11、2个活动积木块12。38个积木块按照不同的组合形成不同难度的迷宫轨道。As shown in Figure 4, the building blocks can be divided into 7 types according to their functions, with a total of 38 blocks: 6 straight track building blocks 6, 12 one-way turning track building blocks 7, 4 intersection track building blocks 8, 4 end-track blocks 9, 2 obstacle track blocks 10, 8 turning blocks 11, 2 active blocks 12. The 38 blocks form a labyrinth track of different difficulty according to different combinations.

如图1所示,4个转向积木块11与1个活动积木块12可以组合成一个互动模块。活动积木块12带有一个可抓握的摇杆13,用手控旋转将滚珠2切换到不同的轨道槽15。As shown in FIG. 1 , four steering blocks 11 and one movable block 12 can be combined into an interactive module. The movable building block 12 has a graspable rocker 13, which can be manually rotated to switch the ball 2 to a different track slot 15.

为提升儿童色彩辨识能力,功能不同的积木块有不同色彩,比如:直线轨道积木块6为蓝色、单向转弯轨道积木块7为黄色、十字路口轨道积木块8为黄色、端点轨道积木块9为橙色、障碍轨道积木块10为紫色、转向积木块11为紫色、活动积木块12为黄色。In order to improve children's color recognition ability, the blocks with different functions have different colors, for example: the straight track block 6 is blue, the one-way turning track block 7 is yellow, the crossroad track block 8 is yellow, and the endpoint track block is yellow. 9 is orange, obstacle track block 10 is purple, turning block 11 is purple, and activity block 12 is yellow.

如图5所示,每个可拼接轨道积木块3底部有两个斜对角设置的可拼接轨道积木块凸柱14,形状是圆柱体;可拼接轨道积木块凸柱14的上表面设有轨道槽15,轨道槽15的横截面形状为圆弧形。As shown in FIG. 5 , at the bottom of each splicable rail building block 3 there are two splicable rail building block protrusions 14 arranged diagonally, and the shape is a cylinder; the upper surface of the splicable rail block protrusion 14 is provided with The track groove 15, the cross-sectional shape of the track groove 15 is a circular arc.

如图6所示,平衡底座4的具体细节,在半球平面端方形分布有4个形状是圆柱体的平衡底座凸柱5。As shown in FIG. 6 , in the specific details of the balance base 4 , four balance base convex columns 5 in the shape of a cylinder are distributed squarely at the end of the hemisphere plane.

该轨道积木平衡玩具利用可拼接轨道积木块铺设轨道路径,可以自由铺设也可以设定起点终点铺设,后将滚珠放入轨道滚动。The track building block balance toy uses splicable track building blocks to lay a track path, which can be laid freely or can be laid with a starting point and an end point, and then the balls are put into the track to roll.

该可拼接的轨道积木平衡玩具控制滚珠滚动方式包括两种:双手握持搭建板,晃动倾斜搭建板控制滚珠滚动;在搭建板底部插上半球状平衡底座后,搭建板不离地,倾斜搭建板控制滚珠滚动。通过不同的轨道路径以及半球状平衡底座位置挑战不同的游戏难度,提高了玩具的可玩性。The splicable track building block balance toy controls the rolling of the balls in two ways: holding the building board with both hands and shaking the inclined building board to control the rolling of the balls; after inserting a hemispherical balance base at the bottom of the building board, the building board does not leave the ground, and the building board is tilted Control the ball rolling. Challenge different game difficulties through different track paths and the position of the hemispherical balance base, which improves the playability of the toy.

实施例2Example 2

为了达到提升滚珠迷宫类玩具可玩性与互动性,除了实施例1中搭建板、积木块和滚珠的结构和连接方式以外,还可选用实施例2中的实施方案以达到同样的效果。In order to improve the playability and interactivity of the ball labyrinth toys, in addition to the structures and connection methods of the building boards, building blocks and balls in Example 1, the implementation in Example 2 can also be selected to achieve the same effect.

实施例2与实施例1的区别为:搭建板表面没有设置通孔,只有积木块安装所需的定位槽,积木块与搭建板的连接方式为磁力吸附连接;活动积木块形状为中心带圆孔的五角星状,当该活动积木块与转向积木块组合后能够形成五个扇形轨道,当转动五角星状的活动积木块时,可将位于扇形轨道内的滚珠切换到不同的轨道;平衡底座的形状为圆台状,当圆台的小圆面朝下时,利用圆台侧面的斜度可以将搭建板倾斜放置。The difference between Example 2 and Example 1 is that there are no through holes on the surface of the building board, only the positioning grooves required for the installation of building blocks, and the connection between the building blocks and the building board is magnetic adsorption connection; the shape of the movable building block is a center with a circle. The five-pointed star shape of the hole, when the movable block is combined with the turning block, it can form five fan-shaped orbits. When the five-pointed star-shaped movable block is rotated, the balls located in the fan-shaped orbit can be switched to different orbits; balance The shape of the base is a truncated cone. When the small round surface of the truncated truncated table faces downwards, the building board can be placed obliquely by using the slope of the side of the truncated table.

综上所述,借助于本实用新型的上述技术方案,将滚珠迷宫类玩具的整体轨道多段拆解为可重组可拼接轨道积木块,加入可拼接互动积木块,提升了滚珠迷宫玩具的可玩性、互动性和趣味性;同时增加平衡部件的新玩法可提供不同难度的挑战,锻炼儿童的思维能力和创造力。To sum up, with the help of the above technical solutions of the present invention, the overall track of the ball labyrinth toys is disassembled in multiple sections into reconfigurable and splicable track building blocks, and the splicable interactive building blocks are added, which improves the playability of the ball labyrinth toys. Sex, interactivity and fun; while adding new ways to balance parts can provide challenges of different difficulty, exercise children's thinking ability and creativity.

以上所述仅为本实用新型的优选实施方式而已,并不用于限制本实用新型,对于本领域的技术人员来说,本实用新型可以有各种更改和变化。凡在本实用新型的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本实用新型的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (9)

1. Balanced toy of track building blocks that can splice, its characterized in that: the labyrinth track comprises a building plate, a splicing track building block, a splicing interaction building block, a ball and a balance base, wherein the splicing track building block and the splicing interaction building block are freely spliced on the upper surface of the building plate to form the labyrinth track with switchable paths, the ball is arranged in the labyrinth track, and the balance base is installed on the lower surface of the building plate.
2. The spliceable rail building block balancing toy of claim 1, wherein: through holes are distributed on the surface of the building plate, track grooves are formed in the upper surface of the splicing track building block, and convex columns are arranged on the lower surface of the splicing track building block.
3. The spliceable rail building block balancing toy of claim 2, wherein: the convex columns arranged on the lower surfaces of the splicing track building blocks are two convex columns positioned at opposite angles.
4. The spliceable rail building block balancing toy of claim 1, wherein: the building plate and the splicing track building block are connected in a magnetic adsorption mode.
5. The spliceable rail building block balancing toy of claim 1, wherein: the track building block can splice includes: straight track building blocks, one-way turning track building blocks, intersection track building blocks, obstacle track building blocks and endpoint track building blocks.
6. The spliceable rail building block balancing toy of claim 1, wherein: the splicing interactive building block comprises a steering building block and a movable building block movably connected to the steering building block, wherein a track groove is formed in the upper surface of the steering building block, and the movable building block rotates horizontally to enable the ball to be switched to different paths of the track groove of the steering building block.
7. The spliceable rail building block balancing toy of claim 6, wherein: the movable building blocks are in a ring shape with a gap or in a pentagram shape with a round hole in the center.
8. The spliceable rail building block balancing toy of claim 1, wherein: the balance base is hemispherical or round table-shaped, and the balance base can enable the building plate to incline.
9. The spliceable rail building block balancing toy of claim 1, wherein: the cross section of the labyrinth track is arc-shaped, and the height of the ball beyond the upper edge of the track is 1/3 of the diameter of the ball.
CN202220358775.6U 2022-02-22 2022-02-22 Splicing track building block balance toy Active CN217448931U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220358775.6U CN217448931U (en) 2022-02-22 2022-02-22 Splicing track building block balance toy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220358775.6U CN217448931U (en) 2022-02-22 2022-02-22 Splicing track building block balance toy

Publications (1)

Publication Number Publication Date
CN217448931U true CN217448931U (en) 2022-09-20

Family

ID=83262976

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220358775.6U Active CN217448931U (en) 2022-02-22 2022-02-22 Splicing track building block balance toy

Country Status (1)

Country Link
CN (1) CN217448931U (en)

Similar Documents

Publication Publication Date Title
US10272322B2 (en) Word game with multi-sided pieces with notches for interlocking of the pieces at various angles
US6910691B2 (en) Cubic puzzle
CN217448931U (en) Splicing track building block balance toy
US20220184516A1 (en) Building block
CN211513379U (en) Interactive DIY children's toy
CN218187839U (en) Sliding magnetic jigsaw puzzle without base plate
CN201120133Y (en) Gradually-recognizable jigsaw puzzle
CN217448932U (en) Jigsaw building block toy using colour block and geometry to make picture
US20190009167A1 (en) Highly Configurable Game System
CN101002987A (en) rotatable sphere puzzle
CN223887381U (en) 3D Rubik's Cube
CN212914467U (en) Three-dimensional chess
CN111888752B (en) A kind of three-dimensional chess
CN222286358U (en) Digital educational toy
CN216169930U (en) Column building block toy
US10029171B1 (en) 2X2X2 cube puzzle and a cube stand
CN223969489U (en) But quick detach castle
CN209490457U (en) A kind of 12 face Solid chess-board toys
KR101550029B1 (en) Map puzzle
CN222942916U (en) Octahedral stereo jigsaw puzzle
CN111035915B (en) Chessboard convenient to develop computing power
CN214512707U (en) Build tactics type building blocks toy of benefiting intelligence
CN214232770U (en) building block structure
CN211189121U (en) Wall toy
CN211987019U (en) Interactive small carrying ball toy

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant