WO2023051429A1 - 自由落体实验上球装置 - Google Patents

自由落体实验上球装置 Download PDF

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Publication number
WO2023051429A1
WO2023051429A1 PCT/CN2022/121188 CN2022121188W WO2023051429A1 WO 2023051429 A1 WO2023051429 A1 WO 2023051429A1 CN 2022121188 W CN2022121188 W CN 2022121188W WO 2023051429 A1 WO2023051429 A1 WO 2023051429A1
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Prior art keywords
ball
blocking
bracket
experiment
free
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PCT/CN2022/121188
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English (en)
French (fr)
Inventor
郑浩斌
罗剑
欧阳建明
彭刚
王永
孙未蒙
彭振宇
蒙联胜
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中国人民解放军国防科技大学
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Publication of WO2023051429A1 publication Critical patent/WO2023051429A1/zh

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/40—Stationarily-arranged devices for projecting balls or other bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/88—Separating or stopping elements, e.g. fingers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
    • G09B23/10—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies

Definitions

  • the utility model relates to the field of teaching and experiment equipment, in particular to a ball-loading device for free-fall experiments.
  • Measuring the local gravitational acceleration using the free fall method is a traditional physics experiment, and it is also the basic experiment of many university or middle school physics courses. During the experiment, by measuring and recording the falling distance and time of the ball and other heavy objects, the local gravitational acceleration is calculated. For a long time, how to effectively improve the utilization efficiency of experimental equipment and improve the operating level of experimental personnel has always been a problem that laboratory teachers, managers and major experimental equipment manufacturers have focused on. As an important role in the process of informatization and digital transformation in laboratory construction, the intelligent transformation of experimental equipment will change and promote traditional experimental equipment to play a more flexible and in-depth teaching and experimental role.
  • the purpose of the utility model is to overcome the deficiencies of the prior art, to provide a device for automatically collecting and sequentially feeding the small balls after the free fall experiment, so as to improve the efficiency and orderliness of the free fall experiment of the small balls.
  • the utility model provides a ball-loading device for a free-fall experiment, comprising a goal tube and a goal shell, the end of the goal tube communicates with the first end of the goal shell, so There is a small ball channel inside the ball casing, and a ball outlet is formed at the second end, the first end of the ball casing is arranged higher than the second end, and the ball casing is rotatably connected with a retaining bracket , a first blocking portion and a second blocking portion are connected to the blocking bracket, the first blocking portion corresponds to the ball outlet, and the second blocking portion corresponds to the ball channel, so When the stopper bracket rotates around the ball housing to different positions, the state of the first stopper blocking the ball outlet and the second stopper against the ball channel is switched .
  • first blocking part is a strip-shaped material blocking strip
  • second blocking part is a plate-shaped material blocking plate
  • an installation groove is formed in the ball housing, and the material baffle is slidably connected with the installation groove.
  • the distance between the installation groove and the ball outlet is equal to the diameter of a single ball.
  • a shifting rod is connected to the end of the blocking bracket, and the shifting rod corresponds to the shifting structure of the dribble assembly.
  • the ball dribbling assembly includes a ball receiving support for continuous delivery, and a ball receiver connected to the ball receiving support, the ball receiver is arranged obliquely, and the first end is formed with an opening for small balls to pass through.
  • the material shifting structure includes a top contact piece connected to the ball receiving bracket, and the top contact piece has a protrusion corresponding to the material shifting rod.
  • the protrusion is made of elastic material, and its elastic deformation is enough to make the shifting structure slide upwards through the shifting rod.
  • Said scheme of the utility model has following beneficial effect:
  • the free-fall experiment ball loading device provided by the utility model can automatically and orderly load the small balls that have completed the free-fall experiment sequentially, so as to transport them to the initial point for the next experiment.
  • the ball improves the efficiency of experiments.
  • As a remote-operable solution it adds a "real" experience to students' online experiments. It can also provide remote platform maintenance for laboratory managers, reduce work intensity, and create a new environment for online experiments. Lay the foundation for comprehensive intelligence and remoteization;
  • Fig. 1 is the overall structural representation of the utility model
  • Fig. 2 is a schematic diagram of the overall structure of the ball housing of the utility model
  • Fig. 3 is another view of the overall structure of the ball housing of the present invention.
  • Fig. 4 is the explosion diagram of the ball shell of the present utility model
  • Fig. 5 is a schematic diagram of the dribble assembly of the present invention.
  • setting and connection should be understood in a broad sense, for example, they can be directly set, installed, and connected, or can be indirectly set and connected through a central component or a central structure.
  • orientation or positional relationship indicated by “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner” and “outer” in the present invention Based on the orientation or positional relationship shown in the drawings or the conventional placement or use state, it is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the structure, feature, device or element referred to must have a specific Orientation, construction and operation in a particular orientation, therefore should not be construed as limiting the invention.
  • the embodiment of the present utility model provides a kind of free-fall experiment upper ball device, comprises the goal tube 1 that is communicated with the bottom end of the drop passage of small ball, and the end of goal tube 1 is connected with the ball.
  • the first end of the shell 2 is connected, and after the ball 3 that has completed the free fall experiment falls into the goal tube 1, it rolls into the goal shell 2 along the goal tube 1.
  • the first end of the goal shell 2 is arranged higher than the second end, so that the small ball 3 continues to roll along the goal shell 2 to Second end and get ready for the ball.
  • the goal housing 2 is rotatably connected with a stop bracket 5, and the stop bracket 5 is hinged with the goal case 2 by bolts.
  • a first blocking portion and a second blocking portion are integrally formed on the blocking bracket 5 , in this embodiment, the first blocking portion is a blocking strip 6 , and the second blocking portion is a blocking plate 7 .
  • the material retaining bar 6 corresponds to the ball outlet 4
  • the material retaining plate 7 corresponds to the ball housing 2.
  • a mounting groove 8 is formed in the ball housing 2, the mounting groove 8 is located at the bottom of the ball housing 2, and the material retaining plate 7 is slidably arranged in the mounting groove 8, so that the material retaining strip 6 faces out.
  • the material retaining plate 7 is submerged in the installation groove 8 as a whole and leaves the small ball channel inside the ball housing 2; 7 gradually moves upwards along the mounting groove 8 to block the inner ball passage.
  • the distance between the installation groove 8 and the ball outlet 4 is equal to the diameter of a single ball 3, so that when the material retaining strip 6 is lifted, there is only one small ball 3 between the material retaining plate 7 and the ball outlet 4 , to ensure that only one small ball is discharged in one action 3.
  • the end of the retaining bracket 5 is connected with a shifting rod 9, and the shifting rod 9 corresponds to the shifting structure of the ball dribbling assembly.
  • the ball dribbling assembly includes a ball receiving bracket 10 for continuous delivery, and a ball receiver 11 connected to the ball receiving bracket 10.
  • the ball receiver 11 is also arranged obliquely, and the first end is formed with an opening through which the ball 3 passes.
  • the material shifting structure includes a top contact piece 12 connected to the ball receiving bracket 10 , and the top contact piece 12 has a protrusion corresponding to the material shifting rod 9 .
  • the protruding part is made of elastic material, and its elastic deformation is enough to make the material shifting structure slide upwards over the material shifting rod 9 .
  • the raised part of the top contact piece 12 contacts the lower surface of the material shifting rod 9 and drives the material retaining bracket 5 to rotate, so that the material retaining bar 6 is gradually lifted up. Open the ball outlet 4, the opening of the ball catcher 11 is gradually aligned with the ball outlet 4, and the single ball 3 close to the ball outlet 4 falls into the ball catcher 11, while the remaining balls 3 are caught by the baffle plate. 7 blocks.
  • the ball catch bracket 10 and the ball catcher 11 continue to rise and transport the fallen ball 3 to the initial position of the free fall for the cyclic experiment.
  • the bracket 5 resets under the action of gravity, so that the material retaining strip 6 seals the ball outlet 4 again, and the material retaining plate 7 is submerged in the installation groove 8 again to make way for the channel, so that the subsequent small balls 3 are sequentially transported forward to a small ball 3 position , for the next ball-up action.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Mathematical Physics (AREA)
  • Algebra (AREA)
  • Computational Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • General Health & Medical Sciences (AREA)
  • Pure & Applied Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

一种自由落体实验上球装置，包括进球管（1）和进球壳体（2），进球管（1）的末端与进球壳体（2）的第一端连通，进球壳体（2）内部具有小球通道，第二端形成有出球口（4），进球壳体（2）的第一端高于第二端布置，进球壳体（2）上转动连接有挡料支架（5），挡料支架（5）上连接有第一阻挡部和第二阻挡部，第一阻挡部与出球口（4）相对应，第二阻挡部与小球通道相对应，挡料支架（5）绕进球壳体（2）旋转至不同位置时，切换第一阻挡部对出球口（4）挡料、以及第二阻挡部对小球通道挡料的状态，能自动、有序地将完成自由落体实验的小球依次上料，以运送至初始点进行下一次实验，无需操作者现场操作、手动收集下落小球，确保了实验的有序进行，提升了实验效率。

Description

自由落体实验上球装置 技术领域
本实用新型涉及教学实验器材领域，特别涉及一种自由落体实验上球装置。
背景技术
利用自由落体法测量当地重力加速度是一项传统的物理实验，也是很多大学或中学物理课程的基础实验。在实验过程中，通过测量、记录小球等重物下落的距离和时间，计算的得到当地重力加速度的大小。长期以来，如何有效提高实验设备利用效率，提高实验人员的操作水平，一直是实验室教师、管理人员以及各大实验设备生产商着重思考的问题。作为实验室建设中信息化、数字化转型过程中的重要角色，实验设备的智能化改造，将改变并推动传统实验设备发挥更加灵活、深度的教学与实验作用。
现有技术中，自由落体运动实验仪需要操作者在现场进行操作，每完成一次实验，操作者需要手动收集下落小球置于起始位置，才能继续完成下一次实验，增加了实验操作的繁琐性，降低了实验效率。同时，当实验次数频繁时，手动收集小球容易产生遗漏、或者误操作等。
应该注意，上面对技术背景的介绍只是为了方便对本申请的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本申请的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
实用新型内容
本实用新型的目的是为了克服现有技术的不足，提供一种自动对自由落体实验后的小球进行收集、并依次上料的装置，提升小球自由落体实验的效率及有序性。
为了达到上述目的，本实用新型提供了一种自由落体实验上球装置，包括 进球管和进球壳体，所述进球管的末端与所述进球壳体的第一端连通，所述进球壳体内部具有小球通道，第二端形成有出球口，所述进球壳体的第一端高于第二端布置，所述进球壳体上转动连接有挡料支架，所述挡料支架上连接有第一阻挡部和第二阻挡部，所述第一阻挡部与所述出球口相对应，所述第二阻挡部与所述小球通道相对应，所述挡料支架绕所述进球壳体旋转至不同位置时，切换所述第一阻挡部对所述出球口挡料、以及所述第二阻挡部对所述小球通道挡料的状态。
进一步地，所述第一阻挡部为长条形的挡料条，所述第二阻挡部为板状的挡料板。
进一步地，所述进球壳体内形成有安装槽，所述挡料板与所述安装槽滑动连接。
进一步地，所述安装槽与所述出球口的间距等于单个小球的直径。
进一步地，所述挡料支架的端部连接有拨料杆，所述拨料杆与运球组件的拨料结构相对应。
进一步地，所述运球组件包括持续输送的接球支架、以及与所述接球支架连接的接球器，所述接球器倾斜布置，第一端形成有小球通过的开口，所述拨料结构包括连接于所述接球支架上的顶触片，所述顶触片具有与所述拨料杆相对应的凸起部。
进一步地，所述凸起部由弹性材料制成，其弹性形变足以使所述拨料结构向上滑过所述拨料杆。本实用新型的上述方案有如下的有益效果：
本实用新型提供的自由落体实验上球装置，能自动、有序地将完成自由落体实验的小球依次上料，以运送至初始点进行下一次实验，无需操作者现场操作、手动收集下落小球，提升了实验效率，作为一种可远程操作的解决方案，为学生的线上实验增加“实”的体验，还可为实验室管理人员提供远程平台维护，降低工作强度，为线上实验的全面智能化、远程化打下基础；
本实用新型的其它有益效果将在随后的具体实施方式部分予以详细说明。
附图说明
图1为本实用新型的整体结构示意图；
图2为本实用新型的进球壳体整体结构示意图；
图3为本实用新型的进球壳体整体结构另一视图；
图4为本实用新型的进球壳体爆炸图；
图5为本实用新型的运球组件示意图。
【附图标记说明】
1-进球管；2-进球壳体；3-小球；4-出球口；5-挡料支架；6-挡料条；7-挡料板；8-安装槽；9-拨料杆；10-接球支架；11-接球器；12-顶触片。
具体实施方式
为使本实用新型的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本实用新型，并不用于限定本实用新型。在具体实施方式中所描述的各个具体技术特征和各实施例，在不矛盾的情况下，可以通过任何合适的方式进行组合，例如通过不同的具体技术特征/实施例的组合可以形成不同的实施方式，为了避免不必要的重复，本实用新型中各个具体技术特征/实施例的各种可能的组合方式不再另行说明。
需要说明的是，术语“设置”、“连接”应做广义理解，例如，可以是直接设置、安装、连接，也可以通过居中元部件、居中结构间接设置、连接。另外，本实用新型中的“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系或常规放置状态或使用状态，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的结构、特征、装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型限制。
如图1-图4所示，本实用新型的实施例提供了一种自由落体实验上球装置，包括与小球下落通道底端连通的进球管1，进球管1的末端与进球壳体2的第一端连通，完成自由落体实验的小球3落入进球管1后，沿进球管1滚入进球壳体2内。进球壳体2内部具有小球通道，第二端形成有出球口4，进球壳体2的第一端高于第二端布置，使小球3继续沿进球壳体2滚动至第二端并准备出球。
为使出球过程有序控制，进球壳体2上转动连接有挡料支架5，挡料支架5通过螺栓与进球壳体2铰接。挡料支架5上一体成型有第一阻挡部和第二阻挡部，本实施例中第一阻挡部为挡料条6，第二阻挡部为挡料板7。其中，挡料条6与出球口4相对应，挡料板7与进球壳体2相对应，当挡料支架5绕进球壳体2旋转至不同位置时，切换挡料条6对出球口4挡料、以及挡料板7对内部小球通道挡料的状态。
在本实施例中，进球壳体2内形成有安装槽8，安装槽8位于进球壳体2的底部位置，挡料板7滑动设置在安装槽8内，使得挡料条6对出球口4挡料时，挡料板7整体没入安装槽8中而让开进球壳体2内部小球通道；挡料支架5绕铰接点旋转将挡料条6抬起时，挡料板7沿安装槽8逐渐向上移出而对内部小球通道阻挡。
在本实施例中，安装槽8与出球口4的间距等于单个小球3的直径，使挡料条6抬起时，挡料板7与出球口4之间仅有一个小球3，确保一次动作仅出料一个小球3。
在本实施例中，挡料支架5的端部连接有拨料杆9，拨料杆9与运球组件的拨料结构相对应。运球组件如图5所示，包括持续输送的接球支架10、以及与接球支架10连接的接球器11，接球器11同样倾斜布置，第一端形成有小球3通过的开口。拨料结构包括连接于接球支架10上的顶触片12，顶触片12具有与拨料杆9相对应的凸起部。其中，凸起部由弹性材料制成，其弹性形变足以使拨料结构向上滑过拨料杆9。
在接球支架10以及接球器11持续向上输送的过程中，顶触片12的凸起部与拨料杆9下表面接触并带动挡料支架5旋转，使挡料条6逐渐抬起而打开出球口4，此时接球器11的开口逐渐对准出球口4，靠近出球口4的单个小球3落入接球器11中，而其余小球3则被挡料板7阻挡。接球支架10以及接球器11继续上升而将落入的小球3运送至自由落体初始位置循环实验，当其离开进球壳体2位置而不再对拨料杆9作用后，挡料支架5在重力作用下复位，使得挡料条6再次将出球口4密封，挡料板7重新没入安装槽8中而让开通道，使后续小球3依次向前输送一个小球3位置，以进行下一次上球动作。
以上所述是本实用新型的优选实施方式，应当指出，对于本技术领域的普 通技术人员来说，在不脱离本实用新型所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本实用新型的保护范围。

Claims (7)

  1. 一种自由落体实验上球装置，其特征在于，包括进球管(1)和进球壳体(2)，所述进球管(1)的末端与所述进球壳体(2)的第一端连通，所述进球壳体(2)内部具有小球通道，所述进球壳体(2)的第二端形成有出球口(4)，所述进球壳体(2)的第一端高于第二端布置，所述进球壳体(2)上转动连接有挡料支架(5)，所述挡料支架(5)上设置有第一阻挡部和第二阻挡部，所述第一阻挡部与所述出球口(4)相对应，所述第二阻挡部与所述小球通道相对应，所述挡料支架(5)绕所述进球壳体(2)旋转至不同位置时，切换所述第一阻挡部对所述出球口(4)挡料、以及所述第二阻挡部对所述小球通道挡料的状态。
  2. 根据权利要求1所述的自由落体实验上球装置，其特征在于，所述第一阻挡部为长条形的挡料条(6)，所述第二阻挡部为板状的挡料板(7)。
  3. 根据权利要求2所述的自由落体实验上球装置，其特征在于，所述进球壳体(2)内形成有安装槽(8)，所述挡料板(7)与所述安装槽(8)滑动连接。
  4. 根据权利要求3所述的自由落体实验上球装置，其特征在于，所述安装槽(8)与所述出球口(4)的间距等于单个小球(3)的直径。
  5. 根据权利要求1所述的自由落体实验上球装置，其特征在于，所述挡料支架(5)的端部连接有拨料杆(9)，所述拨料杆(9)与运球组件的拨料结构相对应。
  6. 根据权利要求5所述的自由落体实验上球装置，其特征在于，所述运球组件包括持续输送的接球支架(10)、以及与所述接球支架(10)连接的接球器(11)，所述接球器(11)倾斜布置，第一端形成有小球(3)通过的开口，所述拨料结构包括连接于所述接球支架(10)上的顶触片(12)，所述顶触片(12)具有与所述拨料杆(9)相对应的凸起部。
  7. 根据权利要求6所述的自由落体实验上球装置，其特征在于，所述凸起部由弹性材料制成，其弹性形变足以使所述拨料结构向上滑过所述拨料杆(9)。
PCT/CN2022/121188 2021-09-29 2022-09-26 自由落体实验上球装置 WO2023051429A1 (zh)

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EP0968740A2 (en) * 1998-07-02 2000-01-05 Luca Zama Gravity distributor of balls, particularly for tennis practice
JP2010125225A (ja) * 2008-11-28 2010-06-10 Hatori Vantec Co Ltd ピッチングマシン
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CN206730460U (zh) * 2017-05-23 2017-12-12 安阳工学院 一种网球定点击球训练喂球装置
CN208908095U (zh) * 2018-03-27 2019-05-28 衡阳师范学院 一种自由落体运动实验装置
CN215796915U (zh) * 2021-09-29 2022-02-11 中国人民解放军国防科技大学 自由落体实验上球装置

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