Fire Hose Winding Structure for Coupling Passage and Water Discharge
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Solution Overview
Problem
Existing fire hose winding devices struggle with continuous winding of fire hoses and couplings, incomplete water discharge, and difficulty in passing folded hoses, leading to increased firefighter workload and delayed firefighting efficiency.
Innovation Solution
A water-discharging transmission structure with a swing arm and clamping mechanism that automatically adjusts to accommodate fire hose couplings and continuously winds the hose while discharging water, using springs, rollers, and a trigger system to facilitate smooth passage and squeezing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional manual winding method is used, then firefighters can wind the fire hose, but the physical strength is consumed and water residual cannot be completely discharged
Solution Approach 1:
The winding device automatically discharges water from the fire hose during the winding process through the pressing roller mechanism, eliminating the need for separate manual water removal operations and reducing firefighter physical consumption
Solution Approach 2:
The patent replaces manual mechanical winding with an automated winding device that uses a motor-driven rotating shaft and pressing rollers to automatically wind the hose and discharge water simultaneously
2Productivity
If fire hose coupling is connected to the fire hose, then the hose can be extended, but the coupling cannot pass through the winding device and manual operation is needed
Solution Approach 1:
The pressing rollers are designed with adjustable positioning mechanisms that allow dynamic adjustment of the rolling gap width, enabling the device to adapt to different hose diameters and accommodate fire hose couplings during the winding process
Solution Approach 2:
The device changes the physical parameter of the rolling gap between pressing rollers, allowing it to expand sufficiently to permit passage of hose couplings while maintaining adequate compression for water discharge during normal hose winding
3Quantity of substance
If the fire hose is squeezed to discharge water, then water residual is reduced, but the folded fire hose cannot pass through
Solution Approach 1:
The pressing rollers implement dynamic compression with controlled pressure and positioning, allowing folded sections of the fire hose to pass through the rolling gap while still effectively discharging water from the unfolded portions
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
Enables continuous and automatic winding of fire hoses and couplings, complete water discharge, and flexible adaptation to different hose thicknesses, reducing firefighter workload and enhancing firefighting efficiency.
Implementation Method 1
the base and the swing arm are elastically connected on the pivotal connection side by means of first springs; the swing arm elastically springs back to an original position by means of the first springs
Implementation Method 2
the upper pressing roller and the lower pressing roller squeezing the fire hose to discharge water
Implementation Method 3
an outer side is structured as a smooth cambered surface through which a fire hose coupling can be in contact from different angles and pushes to realize rotation
Data Source
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AI summary
The present invention provides an improved water-discharging transmission structure for winding a fire hose, comprising a base, and a swing arm having one side pivotally connected onto the base. The base and the swing arm are elastically connected on the pivotal connection side by means of first springs; the base is pivoted with a lower pressing roller, and the swing arm is pivoted with an upper pressing roller; the swing arm elastically springs back to an original position by means of the first springs, and the swing arm and the base are clamped by means of a clamping structure; after the swing arm and the base are clamped, a space through which a fire hose passes is reserved between the upper pressing roller and the lower pressing roller, the upper pressing roller and the lower pressing roller squeezing the fire hose to discharge water; the clamping structure is arranged on the side departing from the side of the pivotal connection of the swing arm and the base, and can automatically and repeatedly clamp the swing arm and the base. The improved water-discharging transmission structure for winding a fire hose achieves continuous and automatic winding of a fire hose and a fire hose coupling, and can fully discharge water in the fire hose.