# Patent

## Title
Self-weighing trolley case with weight sensor composed partially of soft material

## Abstract

A weighing case includes a trolley, a case body, a vertical handle, a horizontal handle, and wheels, where four weight sensing apparatuses are arranged on one side of the case body, and a display screen is arranged on the other side of the case body. The weighing case in the present utility model can conveniently display the weight of goods in the case body because four weight sensing apparatuses are arranged on one side of the case body and a display screen is arranged on the other side of the case body. The present utility model has a simple structure and a strong practicability.

## Background
TECHNICAL FIELD
The present utility model relates to a case, and in particular, to a weighing case of a weighing function.
BACKGROUND
A trolley case is easy to carry. A trolley case in the prior art does not have a weighing function and is inconvenient in occasions such as an airport because there is a weight limitation on belongings.
SUMMARY
A purpose of the present utility model is to propose a weighing case meeting a measurement requirement to solve the foregoing problem.
The purpose of the present utility model is implemented as follows: The weighing case in the present utility model includes a trolley, a case body, a vertical handle, a horizontal handle, and wheels, where four weight sensing apparatuses are arranged on one side of the case body, and a display screen is arranged on the other side of the case body, the weight sensing apparatuses are connected to an input end of a control circuit by using a wire, the display screen is connected to an output end of the control circuit, the weight sensing apparatus includes a cavity formed by a base and a lid, a weight sensor is disposed in the cavity formed by the base and the lid, the middle of the lid is connected to a load-bearing support by using a soft material, and the load-bearing support is inset with a metallic plate.
The weighing case in the present utility model can conveniently display the weight of goods in the case body because four weight sensing apparatuses are arranged on one side of the case body and a display screen is arranged on the other side of the case body. The present utility model has a simple structure and a strong practicability.



BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a schematic structural diagram of one side of a weighing case in the present utility model;
FIG. 2 is a schematic structural diagram of the other side of the weighing case in the present utility model;
FIG. 3 is a working principle diagram of a circuit of the weighing case in the present utility model; and
FIG. 4 is a schematic structural diagram of a weight sensing apparatus of the weighing case in the present utility model.



DESCRIPTION OF EMBODIMENTS
The following further describes the present utility model by using embodiments with reference to the accompanying drawings:
As shown in FIG. 1 and FIG. 2, a weighing case in the present utility model includes a trolley 3, a case body 2, a vertical handle 4, a horizontal handle 7, and wheels 1, where four weight sensing apparatuses 5 are arranged on one side of the case body 2, and a display screen 6 is arranged on the other side of the case body 2.
As shown in FIG. 3 and FIG. 4, the weight sensing apparatuses 5 are connected to an input end of a control circuit by using a wire 51, the display screen 6 is connected to an output end of the control circuit, the weight sensing apparatus 5 includes a cavity formed by a base 53 and a lid 52, a weight sensor 54 is disposed in the cavity formed by the base 53 and the lid 52, the middle of the lid 52 is connected to a load-bearing support 56 by using a soft material 57, and the load-bearing support 56 is inset with a metallic plate 55.

## Claims

1. A weighing case, comprising a trolley (3), a case body (2), a vertical handle (4), a horizontal handle (7), wheels (1), four weight sensing apparatuses (5) disposed on one side of the case body (2), and a display screen (6) disposed on another side of the case body (2),
wherein the weight sensing apparatuses (5) are connected to an input end of a control circuit by using a wire (51),
the display screen (6) is connected to an output end of the control circuit,
the weight sensing apparatuses (5) each comprises a cavity formed by a base (53) and a lid (52),
a weight sensor (54) is disposed in the cavity formed by the base (53) and the lid (52), the lid (52) is connected to a load-bearing support (56) by using a soft material (57), and
the load bearing support (56) is inset with a metallic plate (55).