CN214541255U

CN214541255U - Simple pressure testing demonstration instrument

Info

Publication number: CN214541255U
Application number: CN202120782388.0U
Authority: CN
Inventors: 刘星锋
Original assignee: Luxi Shugen Technology Co ltd
Current assignee: Luxi Shugen Technology Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-10-29
Anticipated expiration: 2031-04-16

Abstract

The application provides a simple and easy pressure test demonstration appearance, including fixed plate, spring, slider, bolt, scale plate, marking pen and testee. The fixed plate is provided with a groove and a scale plate groove, the spring is arranged in the groove, and the scale plate is arranged in the scale plate groove; the sliding block is positioned at the lower part of the spring and is fixedly connected with the spring; the sliding block is provided with a pen hole and a test hole, and the pen hole is used for installing a marking pen; the test hole is used for installing a tested object. The pressure intensity test demonstrator is provided with a scale plate, a measured object and a marking pen before use, and calculates the pressure intensity according to the measured pressure and area by using a pressure intensity formula after performing a pressure intensity experiment. The scale plate and the measured object of the simple pressure test demonstration instrument are easy to replace, and multiple tests are conveniently carried out.

Description

Simple pressure testing demonstration instrument

Technical Field

The application belongs to the teaching instrument field, concretely relates to simple and easy pressure test demonstration appearance.

Background

Pressure is an important plate in middle school physics. When pressure course teaching is carried out in a classroom, because theoretical knowledge in a textbook is abstract and boring, students do not have high interest in learning, and teachers have high pressure in teaching work, if relevant instruments are provided in the teaching, the students can visually know the factors influencing the pressure, and the pressure course teaching method is helpful for the learning and understanding of the students. However, due to the limitations and constraints of various conditions, the existing teaching demonstration instrument has large volume and complex composition structure, is usually used only in a laboratory, and cannot enable students to visually watch, study and operate in a classroom.

According to the technical problem that exists among the prior art, this application provides a simple and easy pressure test demonstration appearance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the not enough of prior art, provide a rational in infrastructure, be convenient for equipment, be convenient for demonstration pressure test demonstration appearance.

In order to achieve the purpose, the technical scheme provided by the application is as follows: a simple pressure intensity test demonstrator comprises a fixed plate, a spring, a slide block, a scale plate, a marking pen and a measured object. The fixed plate is provided with a groove and a scale plate groove; the spring is installed in the groove, and the scale plate is installed in the scale plate groove. The sliding block is positioned at the lower part of the spring and is fixedly connected with the spring; the sliding block is provided with a pen hole and a test hole, the pen hole is positioned at the upper part of the sliding block and is vertical to the compression direction of the spring, and the pen hole is used for installing a marking pen; the test hole is positioned at the bottom of the sliding block and used for installing a measured object; the bolt is located the test hole side, the bolt is used for fixing the testee.

Further, the simple pressure intensity test demonstration instrument is characterized in that the scale plate is made of paper materials.

Further, the simple pressure test demonstration instrument comprises a line drawing pen and a ball-point pen.

Further, a simple and easy pressure test demonstration appearance, the scale plate includes stuff and nail.

The pressure testing demonstration instrument is characterized in that a scale plate, a measured object and a marking pen are installed before the pressure testing demonstration instrument is used, the pressure testing demonstration instrument is held by a hand, vertically placed on A4 paper and slowly pressed with force until the measured object pierces through the A4 paper, a trace left by the marking pen is marked on the scale plate, the maximum pressure of the measured object when the A4 paper is pierced through can be obtained, then the area of the contact surface of the measured object and the A4 paper is measured, and the pressure at this time is calculated by using a pressure formula.

This application is after having adopted above-mentioned scheme, and its biggest advantage is provided with scale plate groove and test hole in this application, and the measured object can be common object in the life, and the scale plate is changed easily, conveniently carries out many times experimental. The students can visually know the relation factors influencing the pressure intensity, so that the students can master the knowledge point more easily.

Drawings

In order to make the content of the present application easier to understand, the technical solutions described in the present application will be further described below with reference to the accompanying drawings and the detailed description, but the present application is not limited thereto.

FIG. 1 is a schematic structural diagram of the present application

Reference numerals: 1. the pen comprises a fixing plate, 2, a spring, 3, a groove, 4, a pen hole, 5, a sliding block, 6, a scale plate groove, 7, a bolt, 8 and a test hole.

Detailed Description

The idea and technical effects of the present application will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, features and effects of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive efforts based on the embodiments of the present application belong to the protection scope of the present application. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The technical characteristics in the creation of the application can be interactively combined on the premise of not conflicting with each other.

In the description of the present application, it is to be understood that the terms "longitudinal," "lateral," "upper rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting of the present application.

Referring to fig. 1, the simple pressure test demonstration instrument according to the embodiment includes a fixing plate 1, a spring 2, a groove 3, a pen hole 4, a slider 5, a scale plate groove 6, a bolt 7, a test hole 8, a scale plate, a marking pen, and a measured object.

The fixed plate 1 is provided with a groove 3 and a scale plate groove 6; the spring 2 is arranged in the groove 3, and the scale plate is arranged in the scale plate groove 6.

The sliding block 5 is positioned at the lower part of the spring 2, and the sliding block 5 is fixedly connected with the spring 2; the sliding block 5 is provided with a pen hole 4 and a test hole 8, the pen hole 4 is positioned at the upper part of the sliding block 5 and is vertical to the compression direction of the spring 2, and the pen hole 4 is used for installing a marking pen; the test hole 8 is positioned at the bottom of the sliding block 5, and the test hole 8 is used for installing a measured object; the bolt 7 is positioned on the side surface of the test hole 8, and the bolt 7 is used for fixing a measured object.

The scale plate is made of paper materials.

The marking pen comprises a pencil and a ball-point pen.

The scale plate comprises a wood strip and a nail.

The application uses the following:

a simple pressure intensity test demonstrator is characterized in that a scale plate is arranged in a scale plate groove 6 before use, a marking pen is arranged in a pen hole 4, a tested object is placed in a test hole 8, and a bolt 7 is screwed to fix the tested object. Holding the pressure intensity test demonstrator, vertically placing on A4 paper, slowly pressing with force until the measured object pierces through A4 paper, marking the trace left by the pen on the scale plate to obtain the maximum pressure when the measured object pierces through A4 paper, measuring the area of the contact surface of the measured object and A4 paper, and calculating the pressure intensity by using a pressure intensity formula. And loosening the bolt 7, and replacing the measured object to perform the next experiment. The scale plate and the measured object are easy to replace, multiple tests are convenient to carry out, the students can visually know the relation factors influencing the pressure intensity, and the students can master the knowledge point more easily.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications and improvements made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a simple and easy pressure test demonstration appearance, including fixed plate and spring, its characterized in that: the marking device also comprises a slide block, a scale plate, a marking pen, a bolt and a measured object; the fixed plate is provided with a groove and a scale plate groove; the spring is arranged in the groove, and the scale plate is arranged in the scale plate groove; the sliding block is positioned at the lower part of the spring and is fixedly connected with the spring; the sliding block is provided with a pen hole and a test hole, the pen hole is positioned at the upper part of the sliding block and is vertical to the compression direction of the spring, and the pen hole is used for installing a marking pen; the test hole is positioned at the bottom of the sliding block and used for installing a measured object; the bolt is located the test hole side, the bolt is used for fixing the testee.

2. A simplified pressure test demonstration apparatus as claimed in claim 1, wherein: the scale plate is made of paper materials.

3. A simplified pressure test demonstration apparatus as claimed in claim 1, wherein: the marking pen comprises a pencil and a ball-point pen.

4. A simplified pressure test demonstration apparatus as claimed in claim 1, wherein: the scale plate comprises a wood strip and a nail.