Detachable Strap Hand Lifting Device for Projector Transport
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Solution Overview
Problem
Conventional carrying bags fail to accommodate electronic devices of varying volumes and weights securely, leading to inconvenience and risk of damage during transport, especially when carrying devices like projectors that are bulky and heavy.
Innovation Solution
A hand lifting device comprising a support pad with connecting portions and a carrying strap that surrounds the device, providing a stable and secure attachment point for lifting and carrying objects of different shapes and sizes, including projectors, by ensuring a larger connection area and preventing the device from falling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional carrying bags are used to transport electronic devices, then the devices can be moved between locations, but the devices are not securely held and may fall off or be damaged
Solution Approach 1:
The carrying device is divided into separate functional components: a support pad with connecting portions and a detachable carrying strap. This segmentation allows the strap to be securely attached when needed and easily removed when not needed, resolving the contradiction between security and convenience.
Solution Approach 2:
The support pad is pre-fixed to the electronic device before carrying. This preliminary action ensures that the device is already secured to the carrying structure, eliminating the risk of falling during transport while maintaining ease of use through simple attach/detach operations.
2Ease of operation
If the carrying strap is detachably connected to the support pad, then the device can be easily attached and detached, but the connection strength may be insufficient
Solution Approach 1:
The carrying strap and support pad are combined through detachable connecting portions that provide both ease of attachment/detachment and sufficient connection strength. The multiple connecting portions work together to distribute the load and maintain strong attachment while allowing simple operation.
3Device complexity
If a single connecting point is used, then the structure is simple, but the device is unstable and may tip over
Solution Approach 1:
The support pad includes multiple connecting portions distributed across its surface rather than a single connection point. This segmentation provides multiple attachment points for the carrying strap, creating a stable triangular or multi-point support structure that prevents tipping while maintaining relatively simple overall design.
Solution Approach 2:
The connecting portions are arranged in a two-dimensional pattern on the support pad rather than along a single line or point. This dimensional distribution of connection points creates geometric stability and prevents rotation or tipping of the device during carrying.
Data Source
AI summary
A hand lifting device and a projection apparatus are provided. The hand lifting device is adapted to carry an object, and includes a support pad and a carrying strap. The support pad has a first surface and a second surface opposite to each other, and has two first connecting portions. The carrying strap has two end portions, and the two end portions respectively have a second connecting portion. The carrying strap is configured to partially surround the object, such that the second connecting portions of the carrying strap are respectively detachably connected to the first connecting portions of the support pad. The projection apparatus comprises the above hand lifting device and a projector.