CN210545259U

CN210545259U - Test-tube rack is used in teaching

Info

Publication number: CN210545259U
Application number: CN201920267072.0U
Authority: CN
Inventors: 陈乐添
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-04
Filing date: 2019-03-04
Publication date: 2020-05-19
Anticipated expiration: 2029-03-04

Abstract

The utility model provides a test-tube rack is used in teaching, is including cup jointing portion, lid portion and test-tube rack, cup jointing portion have and rotate connecting portion, lid portion with rotate connecting portion and rotate the connection, the lower side surface of lid portion be provided with the chamber that holds of frustum form, the intracavity that holds be provided with adsorbate, the test-tube rack have and connect the spout, cup jointing portion have with connect spout complex connector link. The utility model discloses a portion of cup jointing, lid portion realize closing the lid to the test tube, and traditional wooden plug type shutoff test tube is relatively good simultaneously, and this test-tube rack possess the integrative nature of lid portion and test tube good, and lid portion is difficult for losing, and lid portion has the adsorption function.

Description

Test-tube rack is used in teaching

Technical Field

The utility model relates to a teaching instrument equipment technical field, concretely relates to test-tube rack is used in teaching.

Background

In the chemical teaching activity, the chemistry experiment is indispensable, although most in the chemical test on the textbook is nontoxic harmless, the teacher can't certainly guarantee that every student can both be in percent according to the teaching course to carry out the experiment in teaching process, this makes some students of violation of regulations experiment probably make the reactant in the test tube produce poisonous harmful or strong irritability gas in the experimentation, this kind of situation is very unfavorable to student's health, current test tube is open type test tube, in case there is such gas production, still cause the injury to other students around easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a test-tube rack is used in teaching, the utility model discloses a portion of cup jointing, lid portion realize closing the lid to the test tube, and relative traditional wooden plug type shutoff test tube simultaneously, this test-tube rack possess lid portion and test tube the wholeness good, and lid portion is difficult for losing, and lid portion has the adsorption performance.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a test-tube rack is used in teaching, is including cup jointing portion, lid portion and test-tube rack, cup jointing portion have and rotate connecting portion, lid portion with rotate connecting portion and rotate the connection, the lower side surface of lid portion be provided with the chamber that holds of frustum form, the intracavity that holds be provided with adsorbate, the test-tube rack have and connect the spout, cup jointing portion have with connect spout complex connector link.

As the utility model discloses a preferred, the surface that holds the chamber be provided with the through-hole, hold the chamber with the junction of lid portion be provided with the leak protection circle.

As the optimization of the utility model, the leakage-proof ring is a frosted glass ring.

Preferably, the area of the through hole on the surface of the accommodating cavity is larger than 1/2 of the surface area of the accommodating cavity.

As the utility model discloses an prefer, the aperture of through-hole be greater than 1 mm.

As the utility model discloses a preferred, the test-tube rack on be provided with the label cover.

As the utility model discloses a preferred, hold the intracavity side and be provided with the isolation gauze.

As the utility model discloses a preferred, the test-tube rack include the base and connect the fagging, the connection spout set up in connect on the fagging, the base on be provided with the test tube jack.

As the utility model discloses a preferred, the connection spout in be provided with spring stuck point structure, the connector link on be provided with spring stuck point structure complex arc draw-in groove.

As the utility model discloses a preferred, spring stuck point structure include the perpendicular to the axial direction of connecting the spout is seted up the inside linear groove of the connection fagging of test-tube rack, the notch in linear groove seted up circular opening, the linear inslot is provided with reset spring, reset spring's tip with it is provided with the steel ball to set up between the circular opening.

To sum up, the utility model discloses following beneficial effect has:

the utility model has the advantages that the students can not be hurt because of the poisonous gas generated by the reaction in the using process.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic view of a connection structure between the socket part and the cap part according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a spring fastening point structure according to an embodiment of the present invention;

FIG. 4 is a schematic view of the structure at A in FIG. 1;

fig. 5 is a schematic structural diagram of a second embodiment of the present invention;

fig. 6 is a system block diagram of a second embodiment of the present invention;

in the figure: 1-test tube; 2-a socket joint part; 3-a lid portion; 2-1-rotation connection; 4-test tube rack; 5-an accommodating cavity; 6-sealing the cover; 7-a central hole; 8-connecting the sliding chute; 9-connecting buckles; 10-a through hole; 11-a leakage-proof ring; 12-a label cover; 4-1-a base; 4-2-connecting supporting plates; 13-test tube insertion hole; 14-spring stuck point structure; 17-an arc-shaped clamping groove; 14-1-linear grooves; 14-2-circular opening; 14-3-a return spring; 14-4-steel balls; 15-a rotation control device; 16-a master controller; 15-1-a control unit; 15-2-rotating the motor; 15-3-a drive gearbox; 2-2-rotation axis.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in fig. 1 and fig. 2, the embodiment of the present invention comprises a sleeve portion 2 for connecting a test tube 1, a cover portion 3 for sealing the opening of the test tube 1, and a test tube rack 4 for connecting the sleeve portion 2 to fix the position of the test tube 1, wherein the sleeve portion 2 is made of organic glass or nylon plastic, the upper end portion of the sleeve portion 2 has a rotary connecting portion 2-1, the cover portion 3 is rotatably connected with the rotary connecting portion 2-1 via the rotary shaft 2-2, the side of the cover portion 3 facing the inside of the test tube 1 is the lower side, the top of the cover portion 3 is the upper side, the lower side surface of the cover portion 3 is provided with a frustum-shaped accommodating cavity 5, an adsorbate is arranged in the accommodating cavity 5, the adsorbate is preferably activated carbon, for practical teaching, teachers can also replace other solid particles capable of reacting with harmful gases, the upper side of the cover portion 3 is, used for adding adsorbate into the containing cavity 5 after opening the seal cover 6, the cover body part 3 is provided with a center hole 7 communicated with the containing cavity 5, the seal cover 6 is sealed at the center hole 7, a user rotates the cover body part 3 to cover the port position of the test tube 1 in the chemical reaction process, thereby isolating the test tube 1 from the outside, when the reaction in the test tube 1 generates harmful gas, the adsorbate directly adsorbs the generated harmful gas, thereby preventing the harmful gas from overflowing to damage students, and simultaneously facilitating the students to observe the chemical reaction phenomenon in the test tube 1, the test tube rack 4 is provided with a connecting chute 8, the sleeve part 2 is provided with a connecting buckle 9 matched with the connecting chute 8, the cross section of the connecting buckle 9 is trapezoidal, the cross section of the connecting chute 8 is also trapezoidal, the connecting part directly slides into the connecting chute 8 through the connecting buckle 9, and is connected with the test tube rack 4, thereby fixing the test tube 1.

The whole glass material that is of lid portion 3 holds the chamber 5 and is the glass material equally, and the surface that holds chamber 5 is provided with the through-hole 10 that is used for permeating through gas, and the junction that holds chamber 5 and lid portion 3 cup joints and is provided with leak protection circle 11. The leakage-proof ring 11 is a frosted glass ring or a rubber ring, and is specifically selected according to the actual use condition. The area of the through hole 10 on the surface of the accommodating cavity 5 is more than 1/2 of the surface area of the accommodating cavity 5. The aperture of the through hole 10 is larger than 1 mm.

As shown in fig. 1, 3 and 4, a label sleeve 12 for placing labels indicating reactant contents and translation formulas is arranged on a base 4-1 of the test tube rack 4, the label sleeve 12 is formed by a transparent acrylic plate, and a gap for preventing the labels is formed between the transparent acrylic plate and the base 4-1. The inner side of the accommodating cavity 5 is provided with an isolating gauze for preventing the adsorbate from entering the test tube 1, the weaving density of the isolating gauze is specifically selected according to the particle size of the adsorbate, and the weaving holes of the gauze are required to be smaller than 2/3 of the particle size of the adsorbate in principle. The test tube rack 4 comprises a base 4-1 and a connecting supporting plate 4-2, the connecting supporting plate 4-2 is arranged on the upper surface of the base 4-1, a connecting chute 8 is arranged on the connecting supporting plate 4-2, and a test tube jack 13 for inserting the test tube 1 is arranged on the base 4-1. A spring clamping point structure 14 is arranged in the connecting sliding groove 8, and an arc-shaped clamping groove 17 matched with the spring clamping point structure 14 is arranged on the connecting buckle 9. The spring clamping point structure 14 comprises a linear groove 14-1 which is arranged in the connecting supporting plate 4-2 of the test tube rack 4 in the direction perpendicular to the axial central line of the connecting sliding groove 8, a circular opening 14-2 is arranged on the notch of the linear groove 14-1, a return spring 14-3 is arranged in the linear groove 14-1, a steel ball 14-4 is arranged between the end of the return spring 14-3 and the circular opening 14-2, and a part of the steel ball 14-4 is exposed out of the circular opening 14-2 to form a clamping point.

Example two:

as shown in fig. 4 and 5, in the second embodiment of the present invention, on the basis of all the implementation manners of the first embodiment, a rotation control device 15 is additionally disposed on the rotation connection portion 2-1, the rotation axis 2-2 of the rotation connection portion 2-1 is connected to the output end of the rotation control device 15, and the control end of the rotation control device 15 is connected to the general controller 16 disposed on the platform through a wireless module or a signal line. The rotation control device 15 comprises a control unit 15-1 which takes a single chip microcomputer as a main processor and a motor driving chip as a driver, a rotation motor 15-2 and a transmission gear box 15-3, wherein the rotation shaft 2-2 is connected with the output end of the transmission gear box 15-3, the rotation end of the rotation motor 15-2 is connected with the input end of the transmission gear box 15-3, and the rotation motor 15-2 is connected with the motor driving chip of the control unit 15-1. The control unit 15-1 is an upper computer installed on the platform, and the control unit 15-1 includes a global control module for performing a unified opening and closing operation on all the control devices as slaves and a point-to-point control mode for performing an independent opening and closing operation according to the ID of each control device. The rotating motor 15-2 is a reduction motor.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a test-tube rack is used in teaching which characterized in that: including cup jointing portion (2), lid portion (3) and test-tube rack (4), cup jointing portion (2) have and rotate connecting portion (2-1), lid portion (3) with rotate connecting portion (2-1) and rotate the connection, the downside surface of lid portion (3) be provided with the chamber (5) that holds of frustum form, hold and be provided with the adsorbate in chamber (5), test-tube rack (4) have and connect spout (8), cup jointing portion (2) have with connect spout (8) complex connector link (9).

2. The test-tube rack is used in teaching of claim 1, characterized in that: the surface of the accommodating cavity (5) is provided with a through hole (10), and a leakage-proof ring (11) is arranged at the joint of the accommodating cavity (5) and the cover body part (3).

3. The test-tube rack is used in teaching of claim 2, characterized in that: the leakage-proof ring (11) is a frosted glass ring.

4. The test-tube rack is used in teaching of claim 2, characterized in that: the area of the through hole (10) on the surface of the accommodating cavity (5) is larger than 1/2 of the surface area of the accommodating cavity (5).

5. The test-tube rack is used in teaching of claim 2, characterized in that: the aperture of the through hole (10) is larger than 1 mm.

6. The test-tube rack is used in teaching of claim 1, characterized in that: the test tube rack (4) is provided with a label sleeve (12).

7. The test-tube rack is used in teaching of claim 1, characterized in that: the inner side of the accommodating cavity (5) is provided with an isolating gauze.

8. The test-tube rack is used in teaching of claim 1, characterized in that: the test tube rack (4) comprises a base (4-1) and a connecting supporting plate (4-2), the connecting sliding groove (8) is arranged on the connecting supporting plate (4-2), and a test tube jack (13) is arranged on the base (4-1).

9. The test-tube rack is used in teaching of claim 1, characterized in that: the connecting sliding groove (8) is internally provided with a spring clamping point structure (14), and the connecting buckle (9) is provided with an arc-shaped clamping groove (17) matched with the spring clamping point structure (14).

10. The test-tube rack is used in teaching of claim 9, characterized in that: the spring clamping point structure (14) comprises a linear groove (14-1) which is perpendicular to the axial center line direction of the connecting sliding groove (8) and is formed in the connecting supporting plate (4-2) of the test tube rack (4), a circular opening (14-2) is formed in the notch of the linear groove (14-1), a return spring (14-3) is arranged in the linear groove (14-1), and a steel ball (14-4) is arranged between the end of the return spring (14-3) and the circular opening (14-2).