hand lever

简明释义

手杆

英英释义

例句

1.You can adjust the height of the chair using the hand lever 手动杠杆 under the seat.

您可以使用座椅下方的手动杠杆来调整椅子的高度。

2.To open the garage door, simply pull the hand lever 手动杠杆 located next to the entrance.

要打开车库门，只需拉动位于入口旁的手动杠杆。

3.The bicycle's brake system uses a hand lever 手动杠杆 for easy stopping.

这辆自行车的刹车系统使用手动杠杆来方便停车。

4.For safety, always ensure the hand lever 手动杠杆 is in the correct position before starting the engine.

为了安全，确保在启动引擎之前，手动杠杆处于正确的位置。

5.The machine requires you to pull the hand lever 手动杠杆 to start the operation.

该机器需要您拉动手动杠杆以开始操作。

作文

In the world of machinery and engineering, the term hand lever refers to a simple yet effective tool that allows users to exert force and control over various mechanisms. The hand lever is often employed in a variety of applications, from everyday household items to complex industrial machines. Understanding how this tool works and its significance can enhance our appreciation for both mechanical design and practical utility.The basic principle behind a hand lever is the concept of leverage. By applying force at one end of the lever, a user can lift or move a load at the other end with significantly less effort. This principle is rooted in physics and demonstrates how levers amplify human strength, making tasks easier and more efficient. For instance, consider a simple door handle. When you pull down on the handle, you are using a hand lever to open the door. The handle acts as the lever arm, and your hand applies the force necessary to overcome the resistance of the door latch.In industrial settings, hand levers are used in machines such as hydraulic presses, where they allow operators to apply substantial force to materials. The design of these levers is crucial; they must be sturdy enough to withstand heavy loads while remaining manageable for the operator. Additionally, safety features are often incorporated to prevent accidents during operation.Another common example of a hand lever is found in bicycles. The brake levers on a bicycle function as levers that allow the rider to control the braking system. When the rider squeezes the brake lever, they are using their hand to exert force that activates the brakes, slowing down or stopping the bike. This application highlights the versatility of the hand lever in everyday life, showing that even simple designs can have significant impacts on our daily activities.Moreover, the ergonomic design of hand levers plays a vital role in ensuring user comfort and efficiency. Manufacturers often consider the shape, size, and placement of these levers to accommodate a wide range of users. A well-designed hand lever minimizes strain on the hand and wrist, allowing for prolonged use without discomfort. This attention to ergonomic detail reflects a broader trend in product design that prioritizes user experience.In conclusion, the hand lever is an essential component in both mechanical systems and everyday tools. Its ability to amplify force through leverage makes it invaluable in numerous applications, from simple household tasks to complex industrial processes. As we continue to innovate and improve upon existing designs, understanding the fundamental principles behind the hand lever will help us appreciate the ingenuity of engineering and the importance of user-friendly design. Whether we are opening a door or operating heavy machinery, the hand lever remains a testament to the power of simple mechanics in enhancing our lives.

在机械和工程的世界中，术语手动杠杆指的是一种简单而有效的工具，使用户能够施加力量并控制各种机制。手动杠杆通常应用于从日常家庭用品到复杂工业机器的各种场合。理解这个工具的工作原理及其重要性，可以增强我们对机械设计和实用性的欣赏。手动杠杆的基本原理是杠杆原理。通过在杠杆的一端施加力量，用户可以以显著较小的努力提升或移动另一端的负载。这个原理根植于物理学，并展示了杠杆如何放大人类的力量，使任务变得更容易、更高效。例如，考虑一个简单的门把手。当你向下拉把手时，你正在使用一个手动杠杆来打开门。把手充当杠杆臂，而你的手施加必要的力量来克服门锁的阻力。在工业环境中，手动杠杆被用于液压机等机器中，让操作员能够对材料施加巨大的力量。这些杠杆的设计至关重要；它们必须足够坚固以承受重负荷，同时又要便于操作。此外，通常会加入安全功能，以防止在操作过程中发生事故。另一个常见的手动杠杆例子是在自行车上。自行车上的刹车把手作为杠杆，允许骑行者控制制动系统。当骑行者挤压刹车把手时，他们正在用手施加力量来激活刹车，从而减速或停车。这个应用突显了手动杠杆在日常生活中的多功能性，表明即使是简单的设计也能对我们的日常活动产生重大影响。此外，手动杠杆的人体工程学设计在确保用户舒适性和效率方面起着至关重要的作用。制造商通常考虑这些杠杆的形状、大小和位置，以适应广泛的用户群体。设计良好的手动杠杆可以最大限度地减少手腕的压力，允许长时间使用而不感到不适。这种对人体工程学细节的关注反映了产品设计中优先考虑用户体验的更广泛趋势。总之，手动杠杆是机械系统和日常工具中的一个重要组成部分。它通过杠杆放大力量的能力，使其在众多应用中不可或缺，从简单的家庭任务到复杂的工业过程。随着我们继续创新和改进现有设计，理解手动杠杆背后的基本原理将帮助我们欣赏工程的独创性以及用户友好设计的重要性。无论我们是在开门还是操作重型机械，手动杠杆始终是简单机械在改善我们生活中的力量的证明。