Sprinkler Head Protecting Cap With Rotating Cylindrical Member
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Solution Overview
Problem
The existing concealed sprinkler head design requires cumbersome removal and reattachment of a protecting cap during installation and maintenance, leading to a high probability of errors and increased operator burden.
Innovation Solution
A sprinkler head design where the cylindrical member is rotatable and equipped with a protecting cap that allows the tightening tool to engage with a tightening tool engaging portion, eliminating the need for separate operations to connect to the water supply pipe and reattach the protecting cap, with features such as openings on the cylindrical member for intuitive tool engagement and a support base to distribute forces, preventing deformation and breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the protecting cap is fitted to the cylindrical member to prevent deformation or breakage, then the sprinkler head body is protected from external force, but the retainer cannot be mounted on the cylindrical member unless the protecting cap is removed, requiring cumbersome removal and reattachment operations
Solution Approach 1:
The protecting cap is segmented into a cap body and a separate locking member that engages with locking grooves on the cylindrical member. This segmentation allows the locking mechanism to be disengaged by simply pulling the locking member, enabling quick removal and reattachment of the retainer without complex operations.
Solution Approach 2:
The locking member acts as an intermediary between the protecting cap and the cylindrical member. It provides a simple interface for mounting and removal operations, allowing the retainer to be easily attached and detached by engaging or disengaging the locking member from the locking grooves.
2Ease of manufacture
If the protecting cap is removed for mounting the retainer, then the retainer can be installed on the cylindrical member, but the protecting cap must be removed and reattached multiple times during installation and maintenance, increasing the probability of errors
Solution Approach 1:
The locking member is pre-configured on the protecting cap to engage with the locking grooves on the cylindrical member. This preliminary configuration allows the retainer to be mounted and dismounted by simply operating the locking member, eliminating the need for repeated removal and reattachment of the entire protecting cap and reducing installation errors.
3Strength
If the protecting cap is fitted tightly to protect the sprinkler head body, then deformation or breakage is prevented, but the tightening tool cannot access the tightening tool engaging portion to connect the sprinkler head to the water supply pipe
Solution Approach 1:
The protecting cap is designed with asymmetric features: it provides comprehensive protection for the sprinkler head body while including a specifically shaped opening that allows the tightening tool to access the tightening tool engaging portion. The opening is positioned and sized to permit tool access while maintaining overall protective coverage.
Solution Approach 2:
The protecting cap has different properties in different locations: the majority of the cap provides robust protection, while the opening region provides localized access. This local quality differentiation allows the cap to simultaneously protect the sprinkler head body and allow tightening tool access to the engaging portion.
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 simplifies the connection process, reduces the risk of errors, and alleviates operator burden by allowing connection to the water supply pipe with the protecting cap mounted, while preventing deformation and breakage of the tightening tool engaging portion.
Implementation Method 1
the cover plate P is connected to the retainer B by the low melting point alloy, the cover plate P drops due to heat generated in case of fire
Data Source
AI summary
There is provided a sprinkler head having a structure in which steps such as removing and reattaching a protecting cap are eliminated at the time of construction of the sprinkler head, where a cylindrical member is installed on an outer portion of a sprinkler head body and the protecting cap is installed between the sprinkler head body and the cylindrical member. A cylindrical member and a sprinkler head body are installed by being engaged so as to be rotatable together, a protecting cap configured to protect the sprinkler head body from an external force is locked to the cylindrical member. The protecting cap is provided with a space in which a tightening tool for connecting a sprinkler head to a water supply pipe is capable of locking to a tightening tool engaging portion.