Awning Reel Pipe Rollback Structure to Prevent Mis-Opening
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Solution Overview
Problem
Existing awnings are prone to mis-opening, are inconvenient to wind in and wind out, and suffer from fabric rotation issues during use.
Innovation Solution
A wind in and wind out structure for awnings featuring a rear housing with a rotating reel pipe, an automatic rollback mechanism, and locking structures to facilitate easy operation and prevent fabric rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation is used to wind in and wind out the awning, then the structure is simple, but the operation is troublesome and inconvenient
Solution Approach 1:
The patent implements self-service through the automatic rollback mechanism where the volute spiral spring automatically winds the awning fabric back onto the reel pipe when the locking structure is unlocked. The system serves itself by using the stored elastic energy in the spring to perform the winding operation without requiring manual effort, thus improving ease of operation while keeping the overall structure relatively simple
Solution Approach 2:
The volute spiral spring is pre-loaded with elastic energy during the unwinding process, storing energy that will be used for the subsequent winding operation. This preliminary action of energy storage during the outward movement enables automatic rollback without requiring additional power sources or complex mechanisms during the return operation
2Reliability
If the awning is equipped with locking structures to prevent mis-opening, then the reliability is improved, but the operation becomes more complex
Solution Approach 1:
The patent merges the locking function with the winding/unwinding operation itself. The locking structure is integrated into the reel pipe assembly such that the act of winding the fabric automatically engages the locking mechanism, and unwinding automatically disengages it. This combination eliminates the need for separate locking controls, maintaining high reliability while avoiding additional operational complexity
Solution Approach 2:
The reel pipe acts as an intermediary element that mediates between the awning fabric and the locking structure. As the fabric is wound onto the reel pipe, it naturally engages the locking teeth or lugs on the reel pipe with the corresponding locking structure, providing reliable anti-mis-opening protection through the mechanical interaction facilitated by the reel pipe
3Ease of operation
If the awning fabric is allowed to rotate freely during spreading, then the ease of operation is improved, but the fabric becomes misaligned and unusable
Solution Approach 1:
The patent applies dynamics by allowing the reel pipe to rotate freely during the deployment process, enabling easy operation. The rotational freedom is controlled dynamically - the reel pipe can rotate during unwinding but is prevented from rotating during the winding phase through the automatic engagement of the locking structure, thus achieving both ease of operation and alignment precision at different stages
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution allows for convenient and efficient winding and unwinding of the awning fabric, prevents mis-opening and fabric rotation, and reduces manual effort required for operation.
Implementation Method 1
an automatic rollback mechanism is arranged inside the reel pipe; an inner end of the driving-end inner side cover is fixedly connected with a volute spiral spring shaft; the spring is sleeved on the outer side of the spring shaft
Implementation Method 2
the volute spiral spring is arranged inside the reel pipe; when the locking structure unlocks, the spring drives the reel pipe to rotate automatically,实现自动回收
Implementation Method 3
the driving-end decorative cover and the driven-end decorative cover are provided with locking structures used for locking or unlocking the wound front rod; the locking bars penetrate through the corresponding via holes to be plugged into or pulled out of the front rod
Implementation Method 4
one side end of the driving-end pipe stopper close to the driving-end inner side cover is fixedly connected with a self-locking ratchet; the self-locking pawl is rotatably connected with an inner side of the driving-end inner side cover
Implementation Method 5
the rotating shaft of the self-locking pawl is sleeved with a first torsional spring; one end of the first torsional spring presses against an inner surface of the driving-end inner side cover; the other end presses against a surface of the self-locking pawl
Implementation Method 6
an ejection mechanism is arranged inside the driving-end inner side cover and/or the driven-end inner side cover in a penetrating manner; the ejection mechanism includes a support plate; an ejection subassembly is connected with an upper surface of one end of the support plate
Data Source
AI summary
The present invention relates to the field of awnings, specifically to a wind in and wind out structure for protecting an awning. The wind in and wind out structure includes a rear housing; an inside of the rear housing is rotatably connected with a reel pipe; a surface of the reel pipe is wound with an awning fabric; one end of the awning fabric is connected with a front rod; a front end of the rear housing is provided with a driving-end inner side cover; an outer side of the driving-end inner side cover is sleeved with a driving-end decorative cover; a rear end of the rear housing is provided with a driven-end inner side cover; an outer side of the driven-end inner side cover is sleeved with a driven-end decorative cover; the reel pipe is mounted between the driving-end inner side cover and the driven end inner side cover; an automatic rollback mechanism is arranged inside the reel pipe; and the driving-end decorative cover and the driven-end decorative cover are provided with locking structures used for locking or unlocking the wound front rod. The present invention solves the technical problems that an existing awning is easy to open and is inconvenient to wind in, wind out, and use, and enhances the use experience of the awning on an automobile, a recreational vehicle, and other vehicles.