Spray Head Movable Fixing Body for Fire Extinguishing
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Solution Overview
Problem
Existing spray heads for fire extinguishing are complex, costly, and space-intensive, particularly in applications like public spaces and transportation, where space is limited, and require a reliable and efficient mechanism to remove protection means from the nozzle and triggering element.
Innovation Solution
The spray head design features a movable fixing body for the triggering element, which transitions between positions using the pressure of the extinguishing medium to move the protection means from a protective to a non-protective position, allowing the spray head to be activated effectively while minimizing space and maintaining operational reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a movable sprinkler body is used to release the protection means, then the protection means can be effectively removed, but the device becomes complex and manufacturing costs increase
Solution Approach 1:
The fixing body of the triggering element is merged with the releasing means functionality. The same component that fixes the triggering element also serves as the piston that moves under pressure to release the protection means, eliminating the need for separate releasing mechanisms and reducing overall device complexity.
Solution Approach 2:
The fixing body performs multiple functions: it secures the triggering element in place during storage and transport, acts as a piston that converts medium pressure into mechanical motion, and serves as the releasing mechanism for the protection means. This multi-functionality reduces the number of components needed.
2Reliability
If a movable sprinkler body is used to release the protection means, then the protection means can be effectively removed, but the height of the spray head increases
Solution Approach 1:
The triggering element is arranged transversely (horizontally) rather than axially (vertically) on the fixing body. This dimensional change allows the mechanism to operate in a different spatial orientation, reducing the height requirement while maintaining the functionality of the release mechanism.
3Ease of operation
If the fixing body is arranged to be movable between two positions, then the spray head can be activated effectively, but the device complexity increases
Solution Approach 1:
The system uses the extinguishing medium itself (the pressurized fluid) to automatically move the fixing body from the retracted to the pushed-out position. The medium that is already present in the system serves as the actuating force, eliminating the need for external actuators, motors, or complex control mechanisms.
Solution Approach 2:
The fixing body is moved by hydraulic or pneumatic pressure from the extinguishing medium. The pressurized fluid acts on the fixing body to generate the mechanical force needed for movement, providing a simple and reliable activation mechanism that leverages the existing system pressure.
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
This design provides a space-efficient, reliable, and cost-effective solution for activating the spray head, suitable for fire extinguishing applications, especially in environments with limited space, by using the extinguishing medium to move the protection means away from the nozzle, ensuring effective protection and operation.
Implementation Method 1
the fixing body of the triggering element is arranged to move with respect to the spray head body from the effect of the pressure of the medium from a first position to a second position and at the same time to exert force on the protection means
Data Source
Figure 1
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AI summary
Spray head, which comprises a spray head body (2), which comprises at least one nozzle (3), a heat-activated triggering element (5), in connection with the spray head of which a protection means (6) is arranged, which protection means is in front of the nozzle (3) in the protective position and mechanically protects the triggering element (5) when the spray head is in a non-active state, and which protection means (6) can be moved to a second position, in which at least one nozzle (3) and the triggering element (5) are not protected by the protection means (6). The triggering element (5) is fitted onto the fixing body (4) of the triggering element, which fixing body can be moved with respect to the spray head body (2) between two positions, a first position in which the spray head is in the non-active state and the fixing body (4) of the triggering element is in the retracted position, and a second position in which the fixing body (4) of the triggering element is pushed out, and which fixing body (4) of the triggering element is arranged to move with respect to the spray head body (2) from the effect of the pressure of the medium from a first position to a second position and at the same time to exert a force on the protection means (6), for moving the protection means from the protective position to a second position, in which case the spray head is placed into a state of readiness in the second position of the fixing body of the triggering element.