Negative-pressure leakage preventing water cup

An anti-leakage and negative pressure technology, which is applied to drinking utensils and other directions, can solve the problems of water leakage and impact on carrying.

Inactive Publication Date: 2015-09-09
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in a normal temperature and pressure environment, w

Method used

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Embodiment Construction

[0013] Such as Figures 1 to 4 As shown, the negative pressure leak-proof water cup of the present invention includes a cup cover 4 and a cup body 7, the top of the cup cover is an exhaust rubber surface 3, the exhaust rubber surface and the cup body are sealed and connected, and the exhaust rubber surface is provided with an exhaust Hole 2, the vent hole is equipped with vent plug 1, the vent plug is in the shape of a circular platform, the diameter of the upper end surface of the circular platform is slightly larger than the diameter of the vent hole, and the diameter of the lower end surface of the circular platform is slightly smaller than the diameter of the vent hole, so the vent plug The air vent can be sealed; the bottom of the cup cover is provided with a communication hole 10, the inside of the cup cover body is a cup cover air cavity 11, the lower end of the cup cover body is provided with a cup cover external thread 5, and the top opening of the cup body is provided...

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Abstract

The invention discloses a negative-pressure leakage preventing water cup which comprises a cup lid and a cup body. The top of the cup lid is an exhaust rubber face, the exhaust rubber face is in sealed connection with a cup lid body, an exhaust hole is formed in the exhaust rubber face and is provided with an exhaust hole plug, a communicating hole is formed in the cup lid, the inside of the cup lid body is a cup lid air cavity, cup lid outer threads are arranged at the lower end of the cup lid body, corresponding cup opening inner threads are arranged at the open position of the upper end of the cup body, the cup body is connected with the cup bottom to form a whole, and internal space of the cup body is water storage chamber. A part of air in the cup lid air cavity of the water cup is exhausted by pressing the exhaust rubber face with hand, and the pressure intensity inside the airtight water cup is smaller than atmosphere pressure intensity by means of elastic contractility of the exhaust rubber face to form a negative-pressure state. Therefore, water in the water cup does not flow out of the cup under the atmospheric compression, the leakage preventing purpose is achieved, and the negative-pressure leakage preventing water cup is easy to manufacture, low in cost and convenient to carry and use.

Description

technical field [0001] The invention belongs to the field of drinking water containers, in particular to a negative pressure leak-proof water cup. Background technique [0002] Currently, drinking water needs to be stored usually in water glasses. However, in a normal temperature and pressure environment, the water cup is prone to water leakage, which affects carrying. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a negative pressure leak-proof water cup with simple structure, easy manufacture and easy operation, so as to avoid water leakage from the water cup. [0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: the negative pressure leak-proof water cup includes a cup cover and a cup body, the top of the cup cover is an exhaust rubber surface, the exhaust rubber surface and the cup body are sealed and connected, and the exhaust rubber surfac...

Claims

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Application Information

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IPC IPC(8): A47G19/22
Inventor 任立昭尹翠君李兆军
Owner GUANGXI UNIV
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