Beach Cart Adjustable Push Rod and Foldable Support Frame

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing beach carts have a fixed front height, making loading cumbersome, and the push rod adjustment mechanism is cumbersome and slow.

Innovation Solution

A beach cart design featuring a push rod with adjustable height via a locking mechanism comprising transmission handles and a gear system, and a foldable support frame for improved loading convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a fixed bracket is used at the bottom of the front of the beach cart, then the front of the cart can be stably supported, but the height of the front of the cart cannot be lowered, making loading inconvenient

Engineering Contradiction:
Improveloading convenienceVSAvoidbracket structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The fixed bracket is replaced with an adjustable support leg that can be extended or retracted. The support leg includes a telescopic structure with locking mechanisms, allowing the height to be dynamically adjusted between stored and extended positions to facilitate loading while maintaining stability when needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The support leg is divided into multiple telescopic segments that can be independently extended or retracted. This segmentation allows the support leg to achieve different length configurations, providing both compact storage capability and extended support function for convenient loading.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If a locking method on both sides is used to adjust the push rod, then the push rod can be adjusted, but the operation process becomes cumbersome and slow

Engineering Contradiction:
Improvepush rod adjustmentVSAvoidadjustment time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

Two separate locking mechanisms on opposite sides are merged into a single centralized locking mechanism. The locking component engages with both telescopic segments simultaneously through a unified structure, allowing the user to adjust the push rod height with one operation rather than two separate locking actions.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

A locking component acts as an intermediary that connects to both telescopic segments through connecting structures. This intermediary mechanism transfers the single user input force to both sides simultaneously, coordinating the locking or unlocking of both segments in one motion.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Simplifies and speeds up the adjustment process of the push rod, enhances loading convenience with the foldable support frame, and increases carrying space by allowing the cart body to be used with luggage.

Implementation Method 1

the locking mechanism comprises two transmission handles and a gear for driving the two transmission handles to move relative to each other or in opposite directions

Methodology Applied
Scientific EffectGear mechanism: Gear

Implementation Method 2

insides of both transmission handles are provided with a movable hole sleeved with the gear; the two movable holes are opposite to each other, and insides of the two movable holes are respectively provided with a first gear rack and a second gear rack staggered from each other

Methodology Applied
Scientific EffectRack and pinion: Rack and Pinion

Data Source

PatentUS12233930B1Beach cart
Publication Date: 2025.02.25 NINGBO BONSING OUTDOOR PROD CO LTD
  • US12233930B1 patent drawing
  • US12233930B1 patent drawing
  • US12233930B1 patent drawing

AI summary

A beach cart comprises a cart body, wherein the cart body comprises a push rod and a load-bearing rod; both ends of the push rod are movably sleeved with a main body support tube; a cross bar is provided between the two main body support tubes, and an inside of the cross bar is provided with a locking mechanism for adjusting the height of the push rod and locking; the locking mechanism comprises two transmission handles and a gear for driving the two transmission handles to move relative to each other or in opposite directions. The foldable support frame facilitates the user to adjust the posture of the load-bearing rod and makes loading more convenient; the cart body can also be used with the luggage to increase the carrying space and meet the user's needs.