WO2013149509A1 - 擦玻璃装置及其行走启动控制方法 - Google Patents

擦玻璃装置及其行走启动控制方法 Download PDF

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Publication number
WO2013149509A1
WO2013149509A1 PCT/CN2013/070694 CN2013070694W WO2013149509A1 WO 2013149509 A1 WO2013149509 A1 WO 2013149509A1 CN 2013070694 W CN2013070694 W CN 2013070694W WO 2013149509 A1 WO2013149509 A1 WO 2013149509A1
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Prior art keywords
glass
suction cup
control unit
deformation
wiping device
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PCT/CN2013/070694
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English (en)
French (fr)
Inventor
吕小明
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科沃斯机器人科技(苏州)有限公司
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Publication of WO2013149509A1 publication Critical patent/WO2013149509A1/zh

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L1/00Cleaning windows
    • A47L1/02Power-driven machines or devices

Definitions

  • the invention relates to a glass cleaning device and a walking start control method thereof, and belongs to the field of household small electrical appliance manufacturing technology. Background technique
  • the glass-wiping device has been widely used due to its compact size and flexible movement.
  • most of the world's glass-wiping devices use a double-sided multi-suction crawler type walking mechanism.
  • the control system of the traveling mechanism requires a large number of sensors to correctly judge and control the walking speed and walking direction of the glass cleaning device. , so that the position of movement and staying during the operation is accurate.
  • the control system of the traveling mechanism also needs to use the suction of the suction control with the transmission control.
  • a DC motor can drive the two-side chain in the running mechanism through the worm gear reducer and the double-sided clutch. The wheel rotates to drive the crawling action of the wipe. It is not difficult to see from the above description that the structure of the conventional rubbing traveling mechanism and its control system is complicated and the manufacturing cost is high. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a glass cleaning device and a walking start control method thereof according to the deficiencies of the prior art.
  • the glass cleaning device has the advantages of simple structure, low cost and high sensitivity, and the walking start control method has simple steps. The operation is convenient, and the walking control of the glass cleaning device is effectively realized.
  • a glass cleaning device includes a main body and a control unit.
  • the bottom of the main body is provided with a suction cup and a running mechanism.
  • the suction cup and the surface of the glass to be wiped are surrounded by an inner chamber, and the inner chamber is formed by vacuum suction.
  • An internal negative pressure chamber is formed with a sealing surface, a deformation piece is disposed on the sealing surface, a strain gauge is disposed on the deformation piece, and the strain gauge is connected to the control unit and outputs deformation data. Give the control unit.
  • the suction cup is further provided with an air suction hole, and the air suction hole is connected to the vacuum pump through an air pipe, and the vacuum pump is connected to the control unit.
  • the sealing surface is composed of a suction cup; or the sealing surface is composed of a suction cup and a bottom case of the main body.
  • the suction cup is provided with an opening, and the deformation piece is sealed and connected to the opening by a sealing ring; specifically, the suction cup is provided with an opening, and the deformation piece is sealed and connected to the suction cup by a sealing ring. On the opening.
  • an opening is provided on the bottom case of the main body, and the deformation piece is sealingly fixed on the opening, and the deformation piece is integrally provided with the bottom case.
  • the deformation piece is a metal piece or a plastic PC.
  • the strain gauge is adhered to the deformation piece; the strain gauge is a resistance strain gauge.
  • the suction cup comprises a connecting end and an open end, and the open end enclosing area accounts for 1/5-1/3 of the area of the bottom case of the main body body as needed.
  • the invention also provides a walking start control method for the glass cleaning device, the method comprising the following steps: Step 1: The glass cleaning device is placed on the glass surface through the suction cup, the control unit controls the vacuum pump to start, and the inner chamber of the suction cup is vacuumed. ;
  • Step 2 The deformation piece on the suction cup is deformed, the strain gauge senses the deformation of the deformation piece, and the deformation data is output to the control unit;
  • Step 3 The control unit receives the deformation data of the strain gauge output, and compares the deformation data with a preset value in the control unit;
  • Step 4 When the deformation data is equal to the preset value, the control unit outputs a control signal to the running mechanism to start the main body of the wiping device; otherwise, return to step 2.
  • the present invention provides a glass cleaning device and a walking start control method thereof.
  • the glass cleaning device has the advantages of simple structure, low cost and high sensitivity, and the walking start control method has simple steps and convenient operation, and effectively realizes the glass cleaning. Walking control of the device.
  • Figure 1 is a schematic structural view of the present invention
  • FIG. 2 is a partial structural schematic view of a suction cup of the present invention
  • FIG. 3 is a control flow chart of the present invention. detailed description
  • FIG. 1 is a schematic structural view of the present invention
  • FIG. 2 is a partial structural schematic view of a suction cup of the present invention.
  • the present invention provides a glass cleaning device comprising a main body 1 and a control unit (not shown).
  • the bottom of the main body 1 is provided with a suction cup 11 and a running mechanism 12.
  • the suction cup 11 is an inverted-necked structure having no apex angle.
  • the glass cleaning device is adsorbed on the surface of the glass 100 to be wiped, the space surrounded by the surface of the suction cup 11 and the glass 100 is an inner chamber.
  • the inner chamber of the suction cup 11 forms an inner negative pressure chamber by vacuum suction.
  • a deformation piece 111 is disposed on the sealing surface of the inner chamber, and the deformation piece 111 is provided with a strain gauge 112.
  • the strain gauge 112 is connected to the control unit and outputs deformation data to the control unit.
  • the suction cup 11 is further provided with a suction hole 113, which is connected to the vacuum pump 115 through the air guiding tube 114, the vacuum pump 115.
  • the suction cup 11 includes a connecting end 116 for connecting the suction cup 11 and the main body 1, and an open end 117 for adsorbing the glass cleaning device. On the surface of the glass 100.
  • the sealing surface is constituted by the suction cup 11, or is constituted by the suction cup 11 and the bottom case of the main body 1.
  • the sealing surface is directly constituted by the suction cup 11; when both ends of the suction cup 11 are not closed, that is, the suction cup 11 is close to the main body 1.
  • the suction cup 11 needs to be combined with the bottom case to form a sealing end face, and the sealing surface is composed of the suction cup 11 and the bottom case of the main body 1.
  • the deformation piece 111 can be placed at any position on the sealing surface.
  • the suction cup 11 is provided with an opening 118.
  • the deformation piece 111 is sealingly connected to the opening 118 by a sealing ring 119.
  • the suction cup 11 has no opening, but may be integrally provided with the deformation piece 111. Only in this way, the inner chamber of the suction cup 11 can smoothly form the inner negative pressure chamber by vacuum suction.
  • the size of the deformation piece 111 is larger than the size of the opening 118.
  • the adhesion position of the strain gauge 112 is located in the deformation region of the deformation piece and can be adhered to any position within the range of the opening 118.
  • the deformation piece 111 is made of a material that can be elastically deformed, such as a metal piece or a plastic PC.
  • the strain gauge 112 can be fixed to the deformation piece 111 in various ways. In the present embodiment, the strain gauge 112 is directly adhered to the deformation piece 111.
  • the strain gauge 112 is an electronic component. To improve the sensitivity, the strain gauge 112 can be a strain gauge.
  • the degree of deformation is proportional to the vacuum of the suction cup, and the degree of deformation of the strain gauge varies depending on the specifications and materials of the strain gauge itself. Therefore, the size of the area on which the suction cup is placed on the surface of the glass is directly related to whether the glass cleaning apparatus can operate safely. According to requirements, the open end enclosure area accounts for 1/5-1/3 of the area of the bottom casing of the main body.
  • Figure 3 is a control flow chart of the present invention. As shown in FIG. 3 and in conjunction with FIG. 1 and FIG. 2, the present invention further provides a walking start control method for the glass cleaning device as described above, comprising the following steps:
  • Step 1 The glass cleaning device is placed on the glass surface through the suction cup, and the control unit controls the vacuum pump to start, and vacuums the inner chamber of the suction cup;
  • Step 2 The deformation piece on the suction cup is deformed, the strain gauge senses the deformation of the deformation piece, and the deformation data is output to the control unit;
  • Step 3 The control unit receives the deformation data of the strain gauge output, and compares the deformation data with a preset value in the control unit;
  • Step 4 When the deformation data is equal to the preset value, the control unit outputs a control signal to the running mechanism to start the main body of the wiping device; otherwise, return to step 2.
  • the specific process of the walking start control method of the glass cleaning device is as follows: After the glass cleaning device is placed on the glass surface, the main body 1 needs to be held by hand, and the vacuum pump 115 starts to work, in the inner space of the suction cup 11. When a certain degree of vacuum is generated, the deformation piece 111 is deformed by the negative pressure, and as the degree of vacuum increases, the strain gauge 112 senses the deformation, and the deformation data is transmitted to the control unit. A predetermined value is set in the control unit.
  • the degree of vacuum corresponding to the deformation data reaches the threshold value, it is considered that the fitting is performed, and it is judged that the machine can walk, and then the instruction is made to make the device walk, so that the hand can be released; otherwise, the inner chamber of the suction cup is continued.
  • the vacuuming operation is performed, and the deformation data transmitted to the control unit corresponding to the variable piece 112 is continuously compared with a predetermined value in the control unit.
  • the present invention provides a glass cleaning device and a walking start control method thereof.
  • the glass cleaning device has the advantages of simple structure, low cost and high sensitivity, and the walking start control method has simple steps and convenient operation, and effectively realizes the glass cleaning. Walking control of the device.

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  • Cleaning In General (AREA)
  • Manipulator (AREA)

Abstract

一种擦玻璃装置及其行走启动控制方法。该擦玻璃装置包括主机体(1)和控制单元,主机体(1)的底部设有吸盘(11)和行走机构(12),该吸盘(11)与待擦拭的玻璃(100)表面围设成内腔室,该内腔室通过真空抽吸形成内负压室,该内腔室中形成有密封面,在密封面上设有形变片(111),该形变片(111)上设有应变片(112),该应变片(112)与该控制单元相连并输出形变数据给该控制单元。该擦玻璃装置的结构简单,成本低,灵敏度高,其行走启动控制方法步骤简单,操作方便,有效实现对擦玻璃装置的行走控制。

Description

擦玻璃装置及其行走启动控制方法 技术领域
本发明涉及一种擦玻璃装置及其行走启动控制方法, 属于家用小电器制造技术领 域。 背景技术
擦玻璃装置以其体积小巧、 运动灵活的特点得到了广泛的应用。 目前世面上的擦 玻璃装置, 大部分采用的是双侧多吸盘履带式的行走机构, 该行走机构的控制系统需 要借助大量的传感器, 才能够正确判断并控制擦玻璃装置的行走速度和行走方向, 使 其在作业过程中运动和停留的位置准确无误。 该行走机构的控制系统除了需要借助大 量的传感器之外, 还需要使用带传动控制的吸盘排气, 一台直流电动机通过蜗轮蜗杆 减速机和双侧离合器, 才能够带动行走机构中的两侧链轮转动, 从而驱动擦的爬行动 作。 从上述描述中不难看出, 现有擦的行走机构及其控制系统的结构复杂, 制作成本 高。 发明内容
本发明所要解决的技术问题在于针对现有技术的不足, 提供一种擦玻璃装置及其 行走启动控制方法, 该擦玻璃装置的结构简单, 成本低, 灵敏度高, 其行走启动控制 方法步骤简单, 操作方便, 有效实现对擦玻璃装置的行走控制。
本发明的所要解决的技术问题是通过如下技术方案实现的:
一种擦玻璃装置, 包括主机体和控制单元, 主机体的底部设有吸盘和行走机构, 所述的吸盘与待擦拭的玻璃表面围设成内腔室,该内腔室通过真空抽吸形成内负压室, 所述的内腔室中形成有密封面, 在密封面上设有形变片, 所述形变片上设有应变片, 所述的应变片与所述控制单元相连并输出形变数据给所述控制单元。 为了使吸盘的内 腔室能够通过真空抽吸形成内负压室, 所述吸盘上还设有抽气孔, 所述抽气孔通过导 气管与真空泵相连, 所述的真空泵与所述控制单元相连。
为了便于连接, 所述的密封面由吸盘构成; 或者所述的密封面由吸盘和主机体的 底壳构成。 为了方便形变片的固定, 所述的吸盘上设有开口, 所述形变片通过密封圈密封连 接在所述开口上; 具体来说, 吸盘上设有开口, 形变片通过密封圈密封连接在吸盘开 口上。
或者在所述的主机体的底壳上设有开口, 所述形变片密封固定在所述开口上, 形 变片与底壳一体设置。
为了达到良好的形变效果, 所述形变片为金属片或塑料 PC。
为了提高灵敏度, 所述应变片黏贴在形变片上; 所述应变片为电阻应变片。 所述的吸盘包括连接端和开放端, 根据需要, 所述的开放端围设面积占主机体的 底壳面积的 1/5-1/3。
本发明还提供一种擦玻璃装置的行走启动控制方法, 该方法包括如下步骤: 步骤 1 : 擦玻璃装置通过吸盘放置在玻璃表面, 控制单元控制真空泵启动, 对吸 盘的内腔室进行抽真空作业;
步骤 2 : 吸盘上的形变片发生形变, 应变片感应到形变片的变形, 输出形变数据 给控制单元;
步骤 3 : 所述控制单元接收到应变片输出的形变数据, 将该形变数据与控制单元 中的预设值进行比较;
步骤 4 : 当形变数据等于预设值时, 控制单元输出控制信号给行走机构, 启动擦 玻璃装置的主机体行走; 否则返回步骤 2。
综上所述, 本发明提供一种擦玻璃装置及其行走启动控制方法, 该擦玻璃装置的 结构简单, 成本低, 灵敏度高, 其行走启动控制方法步骤简单, 操作方便, 有效实现 对擦玻璃装置的行走控制。
下面结合附图和具体实施例, 对本发明的技术方案进行详细地说明。 附图说明
图 1为本发明的结构示意图;
图 2为本发明吸盘的局部结构示意图;
图 3为本发明的控制流程图。 具体实施方式
图 1为本发明的结构示意图, 图 2为本发明吸盘的局部结构示意图。 如图 1并结 合图 2所示, 本发明提供一种擦玻璃装置, 包括主机体 1和控制单元 (图中未示出)。 主机体 1的底部设有吸盘 11和行走机构 12。所述的吸盘 11为无顶角的类倒锥形结构, 当擦玻璃装置吸附在待擦拭的玻璃 100表面时,吸盘 11与玻璃 100的表面所围设而成 的空间为内腔室。所述吸盘 11的内腔室通过真空抽吸形成内负压室。所述内腔室的密 封面上设有形变片 111, 所述形变片 111上设有应变片 112, 所述的应变片 112与所述 控制单元相连并输出形变数据给所述控制单元。为了使吸盘 11的内腔室能够通过真空 抽吸形成内负压室,所述吸盘 11上还设有抽气孔 113,所述抽气孔 113通过导气管 114 与真空泵 115相连, 所述的真空泵 115与所述控制单元相连。 如图 2所示, 为了便于 连接, 所述的吸盘 11包括连接端 116和开放端 117, 其中的连接端 116用于吸盘 11 与主机体 1的连接, 开放端 117用于使擦玻璃装置吸附在玻璃 100的表面。 所述密封 面由吸盘 11构成, 或者由吸盘 11和主机体 1的底壳构成。 当吸盘 11一端面封闭时, 即吸盘 11靠近主机体 1的底壳的一端面封闭时, 密封面直接由吸盘 11构成; 当吸盘 11两端面均不封闭时, 即吸盘 11靠近主机体 1的底壳的一端面也不封闭时, 吸盘 11 需结合底壳形成密封端面, 此时密封面由吸盘 11和主机体 1的底壳构成。 形变片 111 可以设置在密封面上的任一位置。 为了方便形变片 111的固定, 所述的吸盘 11上设有 开口 118, 为了保证密封效果, 所述形变片 111通过密封圈 119密封连接在所述开口 118上。 或者, 也可以在主机体 1 的底部壳体上直接开口, 然后再将形变片 111密封 固定在主机体 1的底壳上。 此时, 吸盘 11上无开口, 但可以与形变片 111一体设置。 只有这样, 吸盘 11的内腔室才能够通过真空抽吸顺利形成内负压室。 通常情况下, 所 述的形变片 111 的尺寸大于所述开口 118的尺寸。 应变片 112的黏贴位置位于形变片 的形变区域内, 可以黏贴在开口 118范围内的任一位置上。 为了达到良好的形变效果, 形变片 111的材质为可发生弹性形变的材质, 如: 金属片或塑料 PC。 应变片 112可以 通过多种方式固定在形变片 111上,在本实施例中, 应变片 112直接黏贴在形变片 111 上。 应变片 112为一电子元器件, 为了提高灵敏度, 所述应变片 112可以采用电阻应 变片。
要使擦玻璃装置在玻璃表面上正确行走并完成相应的作业, 吸盘内的真空度、 形 变片 111 以及黏贴在其上的应变片 112的形变程度, 与主机体 1的自重、 以及行走过 程中摩擦力之间需要形成特定的参数关系。具体来说,如果用等式来表示,则是: F=PS, f= F= PS>=G, 其中: F为正压力, P为吸盘的真空度, S为密封面积, μ为滑动摩擦 系数, G为重力, f为摩擦力。 由上述参数关系中可知, 只要吸盘的真空度达到阈值即 可, 而形变程度与吸盘真空度成正比, 至于应变片的形变程度则会根据应变片本身的 规格、 材质的不同而有所差异。 因此, 吸盘放置在玻璃表面上的面积的大小, 与擦玻 璃装置是否能够安全运行具有直接的关系。 根据需要, 所述的开放端围设面积占主机 体的底部壳体面积的 1/5-1/3。
图 3为本发明的控制流程图。 如图 3并结合图 1、 图 2所示, 本发明还提供一种 如上所述的擦玻璃装置的行走启动控制方法, 包括如下步骤:
步骤 1 : 擦玻璃装置通过吸盘放置在玻璃表面, 控制单元控制真空泵启动, 对吸 盘的内腔室进行抽真空作业;
步骤 2 : 吸盘上的形变片发生形变, 应变片感应到形变片的变形, 输出形变数据 给控制单元;
步骤 3 : 所述控制单元接收到应变片输出的形变数据, 将该形变数据与控制单元 中的预设值进行比较;
步骤 4 : 当形变数据等于预设值时, 控制单元输出控制信号给行走机构, 启动擦 玻璃装置的主机体行走; 否则返回步骤 2。
具体来说, 擦玻璃装置的行走启动控制方法具体过程是这样的: 将擦玻璃装置放 到玻璃表面上之后, 需要用手扶住主机体 1, 真空泵 115开始工作, 在吸盘 11的内部 空间里产生一定的真空度, 形变片 111在负压的作用下产生形变, 随着真空度增大, 应变片 112感受到形变, 将形变数据传送给控制单元。 控制单元内设一预定值, 一旦 判断形变数据所对应的真空度达到阈值, 即认为贴合, 判断机器可以行走, 于是发出 指令使装置行走, 方可松手; 否则, 继续对吸盘的内腔室进行抽真空作业, 并持续对 应变片 112传送给控制单元的形变数据与控制单元内的预定值进行比较。
综上所述, 本发明提供一种擦玻璃装置及其行走启动控制方法, 该擦玻璃装置的 结构简单, 成本低, 灵敏度高, 其行走启动控制方法步骤简单, 操作方便, 有效实现 对擦玻璃装置的行走控制。
需要说明的是, 关于本申请中的擦玻璃装置, 如何在吸盘吸附于玻璃表面的同时 实现行走, 为现有技术, 具体内容可参见 CN101822513A和 CN102138760A所公开的 内容, 在此不再赘述。

Claims

权利要求书
1、 一种擦玻璃装置, 包括主机体 (1) 和控制单元, 主机体 (1) 的底部设有吸盘 (11) 和行走机构 (12), 所述的吸盘 (11) 与待擦拭的玻璃 (100) 表面围设成内腔 室, 该内腔室通过真空抽吸形成内负压室, 其特征在于, 所述的内腔室中形成有密封 面, 在密封面上设有形变片 (111), 所述形变片 (111) 上设有应变片 (112), 所述的 应变片 (112) 与所述控制单元相连并输出形变数据给所述控制单元。
2、 如权利要求 1所述擦玻璃装置, 其特征在于, 所述吸盘 (11) 上还设有抽气孔 (113), 所述抽气孔 (113) 通过导气管 (114) 与真空泵 (115) 相连, 所述的真空泵 (115) 与所述控制单元相连。
3、 如权利要求 1所述的擦玻璃装置, 其特征在于, 所述的密封面由吸盘 (11) 构 成; 或者所述的密封面由吸盘 (11) 和主机体 (1) 的底壳构成。
4、 如权利要求 3所述的擦玻璃装置, 其特征在于, 所述的吸盘 (11) 上设有开口
(118), 所述形变片 (111) 通过密封圈 (119) 密封连接在所述开口 (118) 上。
5、 如权利要求 3所述的擦玻璃装置, 其特征在于, 所述的主机体 (1) 的底壳上 设有开口, 所述形变片 (111) 密封固定在所述开口上。
6、 如权利要求 1所述的擦玻璃装置, 其特征在于, 所述形变片 (111) 为金属片 或塑料 PC。
7、 如权利要求 1所述的擦玻璃装置, 其特征在于, 所述应变片 (112) 黏贴在形 变片 (111) 上。
8、 如权利要求 1所述的擦玻璃装置, 其特征在于, 所述应变片 (111) 为电阻应 变片。
9、 如权利要求 1所述的擦玻璃装置, 其特征在于, 所述的吸盘 (11) 包括连接端 (116) 和开放端 (117), 所述的开放端 (117) 围设面积占主机体 (1) 的底壳面积的 1/5-1/3。
10、 一种如权利要求 1-9任一项所述的擦玻璃装置的行走启动控制方法, 其特征 在于, 该方法包括如下步骤:
步骤 1: 擦玻璃装置通过吸盘 (11)放置在玻璃表面, 控制单元控制真空泵 (115) 启动, 对吸盘 (11) 的内腔室进行抽真空作业;
步骤 2: 吸盘上 (11) 的形变片 (111) 发生形变, 应变片 (112) 感应到形变片 (111) 的变形, 输出形变数据给控制单元;
步骤 3: 所述控制单元接收到应变片 (112) 输出的形变数据, 将该形变数据与控 制单元中的预设值进行比较;
步骤 4: 当形变数据等于预设值时, 控制单元输出控制信号给行走机构, 启动擦 玻璃装置的主机体 (1) 行走; 否则返回步骤 2。
PCT/CN2013/070694 2012-04-05 2013-01-18 擦玻璃装置及其行走启动控制方法 WO2013149509A1 (zh)

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