CN2336431Y

CN2336431Y - Mechanical principle teaching demonstration table

Info

Publication number: CN2336431Y
Application number: CN 98211428
Authority: CN
Inventors: 陈孝晓
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-04-24
Filing date: 1998-04-24
Publication date: 1999-09-01
Anticipated expiration: 2008-04-24

Abstract

The utility model relates to a teaching demonstration table with mechanical principles, which belongs to a teaching device, comprising models, an inserting board, a counter, an electric control part and a motor. The models are installed on the inserting board. The input shaft of the models is penetrated through the inserting board and is transmission connection with the output shaft of the motor. The output shaft is installed on the counter. The inserting board is connected with the counter through a pin socket. Various models are respectively fixed to the inserting board. The inserting board with the models is inserted on the counter for carrying out teaching demonstration. The utility model has the advantages of small ground occupation, light weight, low cost, convenient operation and good teaching effect and is suitable for schools to carry out the demonstration and the teaching of the mechanical principles.

Description

The mechanical principle teaching Demonstration table

The utility model relates to a kind of teaching equipment, particularly the mechanical principle teaching Demonstration table.

In the mechanical major teaching of universities, technical school, vocational school, the model of demonstration mechanical principle has seven, 80 covers, for these models can be operated easily,, improve teaching efficiency in order to student's understanding mechanical principle more directly perceived knowledge, prior art is placed in these models on the showcase, every set of model is joined a motor, need 70 altogether surplus a motor, showcase needs ten, these models could be settled, and join a central control board.The weak point that this technology exists is: 1. floor area is big, and 13m is many for a control desk length overall of ten cabinets, need take a classroom; 2. the showcase number is many, and number of motors is many, and cost is higher; 3. all on showcase, unfavorable student watches the model of being demonstrated to various models with breathless interest, and motor speed is fixed simultaneously, does not reflect the moving situation of model under different rotating speeds, and the raising of teaching efficiency still is subjected to bigger restriction; 4. weight is heavier, kilogram surplus general assembly (TW) has 320, the transportation of unfavorable equipment; 5. control desk control original paper is many, and operation mixes, and control desk and both sides showcase distance are far away, control inconvenience.

It is little that the purpose of this utility model provides a kind of floor area, in light weight, the mechanical principle teaching Demonstration table that teaching efficiency is good.

The utility model structure comprises model (1), sales counter (3), the collecting of electrical controls (4), motor (5) and plate (2), motor (5) is installed in the behind of sales counter (3) facade (3a), its output shaft (5a) exposes facade (3a), model (1) is installed on the plate (2), the input shaft (1a) of model (1) passes plate (2) and is in transmission connection mutually with described motor (5) output shaft (5a), there is pin (or socket in groups at plate (2) back side, 2a), have on sales counter (3) facade (3a) with plate (2) and go up pin (or socket, the socket in groups that 2a) is complementary (or pin, 3a1).

Motor (5) on sales counter (3) facade (3a) can be six, and (or pin 3a1) is six groups to its in groups socket accordingly; Also but motor (5) is three, and (or pin 3a1) is three groups to its in groups socket accordingly.Below socket in groups (or pin 3a1) can be made of four sockets (or pin), be arranged on four angles of rectangle (or square), with pin on the plate (2) (or socket, 2a) corresponding.Also (but or pin 3a1) is six groups to socket, and every group respectively by four socket (or pins, 3a1) constitute, be arranged on rectangular four angles, motor is three, per two groups shared one motors, wherein one group rectangle is to arrange that vertically the rectangle of another group is arranged horizontally.

To have the socket (or pin) that the pin (or socket) of the plate (2) of model (1) aims on sales counter (3) facade (3a) injects inwards, the transmission input shaft of model (1) is aimed at motor output shaft just, and formation is in transmission connection, the operation collecting of electrical controls, the motor of opening motor or before having opened moves by the transmission component that motor output shaft and model input shaft drive on the model (1), demonstrates out the transmission principle of mechanism.The various plates (2) that have different models are respectively inserted on the sales counter facade (3a), can demonstrate out various mechanism driving principle.With with in the different sockets (or pin) on plate (2) insertion sales counter (3) facade (3a) of certain model,, can demonstrate out the operational situation of certain mechanism driving principle under friction speed owing to the rotating speed of motor difference that is equipped with.The various plates (2) that have different models (1) respectively are stored in the dedicated storage case, take care of and transportation in order to storing, storage bin can be made into two, and long is 0.7m, and height is 1.5m, also can be made into eight, and long is 0.3m, and height is 0.75m.Sales counter (3) length, highly, width can be suitable with the prior art showcase.

Like this, present patent application technology sales counter (3) adds that the storage bin total length only is about 3m, to make eight as storage bin, and storage bin also can separate independently to be deposited, or overlapping depositing, and floor area only is 1/4 of a prior art.The weight ratio prior art reduces 40%.Because sales counter (3) number reduces, motor (5) from prior art 70 surplus reduce to three or six, cost descends significantly.Because model (1) is stored in the storage bin, take out during demonstration and be placed on the sales counter facade, the model that occurs on sales counter only for carrying out the model of lecture experiment, does not have the interference of other unnecessary models, and this helps the student focuses one's attention on, and improves the demonstration effect; Model can be placed on the different positions simultaneously, can demonstrate out the moving situation of model under different motor speeds, further improves teaching efficiency, and the utility model teaching efficiency is good.And the collecting of electrical controls (4) places on the sales counter (3), and control knob only is four or seven, and operation control is quite convenient, helps saving instructional blocks of time.In addition, model (1) leaves in the storage bin at ordinary times, helps keeping the cleaning of model.

Fig. 1 is the front view of the utility model embodiment one;

Fig. 2 is a left view among Fig. 1;

Fig. 3 is an A-A broken section enlarged drawing among Fig. 1;

Fig. 4 is embodiment two sales counter front views.

Now in conjunction with the accompanying drawings the utility model is described in detail.The utility model structure is made up of sales counter (3), model (1), plate (2), motor (5) and the collecting of electrical controls (4).Model (1) is installed on the plate (2), and its input shaft (1a) passes plate (2), and becomes the web member of the rotating part in the model (1), also is that the rotating part in the model (1) is connected with the revolute pair of plate (2) by input shaft (1a) formation.There is pin (2a in groups at plate (2) back side, or socket, the following stated pin can change socket into, correspondingly socket changes pin into), usually pin (2a) can be four in groups, be positioned at the corner location of rectangle or square plate (2), or on foursquare four points of the last formation of rectangle plate (2), pin (2a) can adopt the spring inserting structure.The top of sales counter (3) is divided into facade (3a); The bottom is divided into storage cabinet, the plate of storage belt model (2).The socket in groups (3a1) that is complementary with the last pin (2a) of plate (2) is arranged on sales counter (3) facade (3a), and every group can be four equally, as being four geometric figures that point forms with four sockets, can be rectangle or square.Motor (5) is installed in the behind of sales counter (3) facade (3a), and by spring support (5b) formation connection, the elastic component of spring support is a spring among Fig. 3, its output shaft (5a) exposes facade (3a), installation site corresponding with the input shaft (1a) on the model (1) (with pin and socket location), and form with input shaft (1a) and to be in transmission connection.Connected mode can adopt falcon groove structure, is the rectangle falcon as model (1) input shaft (1a), and then motor (5) output shaft (5a) is an elongated slot, promptly forms in the falcon insertion groove to be in transmission connection.

In groups socket (3a1) can be six groups on the sales counter (3), joins six motors.Also can be three groups, join three motors.Also can be six groups, join three motors, at this moment, four sockets (3a1) of every group constitute oblong-shaped, per two groups shared one motors, and wherein one group rectangle is vertically to arrange (A among Fig. 4), the rectangle of another group is arranged horizontally (B among Fig. 4).In addition, rotating speed of motor is selected three kinds of 5 γ/min, 15 γ/min and 35 γ/min usually for use.Plate (2) material can be plastics, and sales counter (3) facade (3a) material can be wood, for simplicity, adopts the profile line of metal material to represent that it dissects the position among Fig. 3.

Claims

1, a kind of mechanical principle teaching Demonstration table, structure comprises model (1), sales counter (3), the collecting of electrical controls (4) and motor (5), motor (5) is installed in the behind of sales counter (3) facade (3a), its output shaft (5a) exposes facade (3a), it is characterized in that structure also comprises plate (2), described model (1) is installed on the plate (2), the input shaft (1a) of model (1) passes plate (2) and is in transmission connection mutually with described motor (5) output shaft (5a), there is pin (or socket in groups at plate (2) back side, 2a), have on sales counter (3) facade (3a) with plate (2) go up pin (or socket, the socket in groups that 2a) is complementary (or pin, 3a1).

2, Demonstration table according to claim 1 is characterized in that on the sales counter (3) that (or pin 3a1) is six groups, and motor (5) is six in groups socket.

3, Demonstration table according to claim 1 is characterized in that on the sales counter (3) that (or pin 3a1) is three groups, and motor (5) is three in groups socket.

4, Demonstration table according to claim 1, it is characterized in that socket (or pin in groups on the sales counter (3), 3a1) be six groups, every group respectively by four socket (or pins, 3a1) constitute oblong-shaped, motor (5) is three, per two groups shared one motors, wherein one group rectangle is to arrange that vertically the rectangle of another group is arranged horizontally.

5,, it is characterized in that described motor (5) is installed in the behind of sales counter (3) facade (3a) by spring support (5b) according to claim 1 or 2 or 3 or 4 described Demonstration tables.