CN212524164U

CN212524164U - Testing device for teaching

Info

Publication number: CN212524164U
Application number: CN202020930307.2U
Authority: CN
Inventors: 季祥义
Original assignee: Shanghai East Teaching Co ltd
Current assignee: Shanghai East Teaching Co ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-02-12
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses a test device is used in teaching, which comprises a fixed base, open one side of fixing base top outer wall has the rectangular channel, and the both sides inner wall of rectangular channel all rotates and is connected with the axis of rotation, two one side outer wall of axis of rotation all is fixed with the sleeve, and the telescopic inner wall is pegged graft and has the dead lever, the top outer wall of dead lever is fixed with the fixed plate, and the bottom outer wall of fixed plate is fixed with the bracing piece that three equidistance is the annular and distributes, and is three the bottom outer wall of bracing piece all is fixed with the fixed disk, and the top outer wall of fixed disk opens there is the fixed mouthful, the inner wall of fixed mouthful is fixed with the filter screen, and. The utility model discloses can prevent because the great transport iron stand platform of being not convenient for of teachers and students of leading to of the volume of iron stand platform causes the influence to experimental teaching, can prevent that the flame of alcohol burner from extinguishing and causing the influence to the physics experiment, can prevent that the laboratory glassware from droing from the inside of standing groove and causing the damage to the laboratory glassware.

Description

Testing device for teaching

Technical Field

The utility model relates to a teaching management technical field especially relates to a test device is used in teaching.

Background

In the teaching process, especially physical teaching need generally teach the student through test device, and the iron stand platform is a teaching equipment commonly used in the physical teaching experiment, and general iron stand platform comprises base and pillar for fixed and support various containers, and be used for experimental operation such as filtration, heating, often use with alcohol burner, beaker, test tube cooperation, is one of the most extensive instrument of use in the physical teaching experiment.

However, the conventional iron stand generally requires moving the iron stand when in use, but the iron stand is large in size, and therefore, the movement of the iron stand generally causes inconvenience to teachers and students. Therefore, it is necessary to design a teaching test device to solve such problems.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a test device for teaching.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a test device is used in teaching, includes the fixing base, open one side of fixing base top outer wall has the rectangular channel, and the both sides inner wall of rectangular channel all rotates and is connected with the axis of rotation, two one side outer wall of axis of rotation all is fixed with the sleeve, and the telescopic inner wall is pegged graft and is had the dead lever, the top outer wall of dead lever is fixed with the fixed plate, and the bottom outer wall of fixed plate is fixed with the bracing piece that three equidistance is the annular and distributes, and is three the bottom outer wall of bracing piece all is fixed with the fixed disk, and the top outer wall of fixed disk opens there is fixed mouthful, the inner wall of fixed mouthful is fixed with the filter screen, and the top of filter screen has placed the asbestos gauge, the both sides of fixing base.

As a further aspect of the present invention: sockets are formed in the outer wall of one side of the sleeve and the inner wall of one side of the rectangular groove, and bolts are inserted into the inner walls of the two sockets.

As a further aspect of the present invention: the outer wall of one side of the sleeve is provided with a positioning hole at a position far away from the socket, and a positioning pin is inserted in the positioning hole.

As a further aspect of the present invention: the outer wall of one side of the fixed rod is provided with limit holes distributed at equal intervals, and the inner walls of the limit holes are connected with the positioning pins in an inserting mode.

As a further aspect of the present invention: the outer wall of the top of the placing plate is provided with a fixing groove, a wind shield is fixed on the outer wall of the top of the fixing groove, and the wind shield is arc-shaped.

As a further aspect of the present invention: a placing groove is formed in the outer wall of one side of the fixing seat, and plastic retaining pieces are fixed on the inner walls of the two sides of the placing groove.

As a further aspect of the present invention: the inner wall of the fixed port is provided with soft barbs which are distributed annularly at equal intervals.

The utility model has the advantages that:

1. the iron support can be folded through the rectangular groove, the rotating shaft and the sleeve rod, so that the iron support can be moved conveniently, and the influence of inconvenience in carrying the iron support by teachers and students on teaching of a test due to the fact that the iron support is large in size is prevented;

2. the device can protect the flame of the alcohol lamp while fixing the alcohol lamp through the fixing groove and the wind shield, and the influence of the extinguishing of the flame of the alcohol lamp caused by external wind power on a physical experiment is prevented;

3. through standing groove and the plastics separation blade that sets up for the device can be accomodate experimental articles for use, so that remove the device, can prevent through the plastics shell fragment to lead to experimental articles for use to drop from the inside of standing groove and cause the damage to experimental articles for use owing to rock when removing the device.

Drawings

Fig. 1 is a schematic sectional structural view of a testing device for teaching provided by the present invention;

fig. 2 is a schematic view of a three-dimensional structure of a fixing disc of the testing device for teaching according to the present invention;

fig. 3 is the utility model provides a main view structure schematic diagram of testing device for teaching.

In the figure: 1 fixing base, 2 rectangular channel, 3 standing grooves, 4 fixed slots, 5 fixed axles, 6 place the dish, 7 deep beads, 8 filter screens, 9 fixed disks, 10 bracing pieces, 11 fixed plates, 12 fixed mouths, 13 asbestos gauge, 14 soft barbs, 15 dead levers, 16 locating pins, 17 sleeves, 18 bolt, 19 axis of rotation, 20 plastics separation blades.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a test device for teaching comprises a fixed seat 1, a rectangular groove 2 is arranged on one side of the outer wall of the top of the fixed seat 1, and the inner walls of the two sides of the rectangular groove 2 are both rotatably connected with rotating shafts 19, the outer wall of one side of each of the two rotating shafts 19 is connected with a sleeve 17 through a bolt, and the inner wall of the sleeve 17 is inserted with a fixed rod 15, the outer wall of the top of the fixed rod 15 is connected with a fixed plate 11 through a bolt, the outer wall of the bottom of the fixed plate 11 is connected with three support rods 10 which are distributed annularly at equal intervals through bolts, the outer walls of the bottoms of the three support rods 10 are connected with a fixed plate 9 through bolts, and the outer wall of the top of the fixed disc 9 is provided with a fixed port 12, the inner wall of the fixed port 12 is connected with a filter screen 8 through a bolt, and asbestos gauge 13 has been placed at the top of filter screen 8, and there is fixed axle 5 both sides of 1 top outer wall of fixing base through bolted connection, and there is placing plate 6 top outer wall of fixed axle 5 through bolted connection.

The utility model discloses in, the socket has all been opened to one side outer wall of sleeve 17 and one side inner wall of rectangular channel 2, and the inner wall of two sockets all pegs graft and have bolt 18, the position that socket was kept away from to one side outer wall of sleeve 17 is opened there is the locating hole, and peg graft in the inside of locating hole has locating pin 16, one side outer wall of dead lever 15 is opened there is the spacing hole that the equidistance distributes, and peg graft between the inner wall in spacing hole and the locating pin 16, the top outer wall of placing tray 6 is opened there is fixed slot 4, and there is deep bead 7 top outer wall of fixed slot 4 through bolted connection, the shape of deep bead 7 is the arc, one side outer wall of fixing base 1 is opened there is standing groove 3, and standing groove 3's both sides inner wall all has plastics separation blade 20 through bolted connection, the.

The working principle is as follows: when in use, the device is fixed on a test bed, the sleeve 17 is erected through the rotating shaft 19, the sleeve 17 is fixed through the bolt 18, the height of the fixing rod 15 is adjusted by the positioning pin 16, the fixing plate 11 and the fixing plate 9 are taken out from the inside of the placing groove 3, the fixing plate 11 and the fixing plate 9 are fixed by bolts, after the fixation is finished, the beaker is placed in the fixing opening 12, the friction force between the beaker and the fixing port 12 is increased by the soft barbs 14 so as to fix the beaker, the alcohol lamp is placed inside the fixing groove 4, the wind shield 7 can prevent the influence of the flame extinction of the alcohol lamp caused by the external wind on the physical test, and after the test is finished, the instrument is recycled into the placing groove 3, can prevent through plastics separation blade 20 that the assay supplies from droing from the inside of standing groove 3 and causing the damage to the assay supplies owing to rocking when removing the device.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a test device for teaching, includes fixing base (1), its characterized in that, open one side of fixing base (1) top outer wall has rectangular channel (2), and the both sides inner wall of rectangular channel (2) all rotates and is connected with axis of rotation (19), two one side outer wall of axis of rotation (19) all is fixed with sleeve (17), and the inner wall of sleeve (17) pegs graft and have dead lever (15), the top outer wall of dead lever (15) is fixed with fixed plate (11), and the bottom outer wall of fixed plate (11) is fixed with three equidistance and is annular distribution's bracing piece (10), three the bottom outer wall of bracing piece (10) all is fixed with fixed disk (9), and the top outer wall of fixed disk (9) is opened has fixed mouth (12), the inner wall of fixed mouth (12) is fixed with filter screen (8), and asbestos gauge (13) has been placed at the top of filter screen (8, fixed axle (5) are all fixed with to the both sides of fixing base (1) top outer wall, and the top outer wall of fixed axle (5) is fixed with places dish (6).

2. A test device for teaching as claimed in claim 1, wherein the outer wall of one side of the sleeve (17) and the inner wall of one side of the rectangular groove (2) are provided with sockets, and the inner walls of the two sockets are inserted with pins (18).

3. A teaching test device as claimed in claim 1 or 2, wherein a positioning hole is formed in the outer wall of one side of the sleeve (17) far away from the insertion opening, and a positioning pin (16) is inserted into the positioning hole.

4. The teaching test device as claimed in claim 1, wherein the fixing rod (15) is provided with limiting holes at an equal distance on the outer wall of one side, and the inner wall of the limiting hole is inserted into the positioning pin (16).

5. The teaching test device according to claim 1, wherein the top outer wall of the placing plate (6) is provided with a fixing groove (4), a wind shield (7) is fixed on the top outer wall of the fixing groove (4), and the wind shield (7) is arc-shaped.

6. The teaching test device according to claim 1, wherein a placing groove (3) is formed in the outer wall of one side of the fixing seat (1), and plastic blocking pieces (20) are fixed on the inner walls of the two sides of the placing groove (3).

7. A teaching test device according to claim 1, characterized in that the inner wall of the fixing opening (12) is provided with equally spaced soft barbs (14) distributed annularly.