Grease Gun Sealing Ring Structure for Multi-Cartridge Loading
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Solution Overview
Problem
Existing battery-type grease guns are limited to loading bulk grease, caterpillar-shaped grease cartridges, and sealed can-type grease cartridges due to deformation or incompatibility of the sealing ring, preventing simultaneous use of all three types.
Innovation Solution
A battery-type grease gun with a bowl-shaped sealing ring, inner and outer pressing plates, and a support frame, allowing the gun to accommodate various grease cartridges without deformation, featuring a cylindrical pin for fixing and a compression spring for operation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional sealing ring is used in the grease gun, then the grease gun can load bulk grease and caterpillar-shaped grease cartridges, but the sealing ring deforms when attempting to load sealed can-type grease cartridges, making it incompatible
Solution Approach 1:
The sealing ring is changed from a conventional flat circular shape to a bowl-shaped structure with specific geometric parameters (inner radius, outer radius, depth). This parameter change allows the sealing ring to deform elastically to accommodate rigid cylinder-shaped packages of sealed can-type grease cartridges without losing its sealing capability, thereby enabling compatibility with all three grease cartridge types while maintaining reliability
Solution Approach 2:
The sealing ring adopts a bowl-shaped curved structure instead of a flat shape. This curvature allows the sealing ring to flex and conform to the cylindrical surface of sealed can-type grease cartridges, enabling effective sealing with rigid containers while maintaining structural integrity and preventing deformation failure
2Adaptability or versatility
If the sealing ring is made more flexible to accommodate sealed can-type grease cartridges, then compatibility improves, but the sealing ring may deform excessively and lose sealing capability
Solution Approach 1:
The bowl-shaped sealing ring's geometric parameters (depth, inner radius, outer radius) are optimized to provide the right balance between flexibility and structural strength. The specific parameters allow sufficient elastic deformation to accommodate sealed can-type cartridges while maintaining enough rigidity to preserve sealing capability and prevent excessive deformation
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 the grease gun to load and operate with bulk, caterpillar-shaped, and sealed can-type grease cartridges efficiently, reducing space occupation and enhancing operational convenience.
Implementation Method 1
a compression spring provided between the support frame of the sealing ring and the grease cylinder rotary cover
Data Source
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AI summary
A battery-type grease gun capable of being loaded with various grease cartridges is provided. The battery grease gun includes a main body shell. A convergence base and a grease cylinder are provided at a bottom of the main body shell. The grease cylinder is provided with a push rod and a grease cylinder rotary cover. The push rod is provided with a handle, and the handle is connected to a thin and long pull rod. The pull rod extend through a center hole of the grease cylinder rotary cover. An end of the pull rod away from the grease cylinder rotary cover is provided with a sealing ring. An inner side of the sealing ring is provided with an inner pressing plate of the sealing ring and a support frame of the sealing ring, respectively. An outer side of the sealing ring is provided with a washer and an outer pressing plate of the sealing ring. A compression spring is provided between the support frame of the sealing ring and the grease cylinder rotary cover. Fixing holes are disposed on the sealing ring, the inner pressing plate of the sealing ring, the outer pressing plate of the sealing ring. Connecting member extend through the at least one set of fixing holes to connect the sealing ring, the inner pressing plate of the sealing ring, and the outer pressing plate of the sealing ring together. A terminal of the end of the pull rod away from the grease cylinder rotary cover is provided with a cylindrical pin, and an opening configured to allow the cylindrical pin to extend through is provided at a center of the outer pressing plate of the sealing ring. Thus, the grease gun is capable of loading various kinds of grease cartridge and can be used more widely.