CN108160138B

CN108160138B - High school experimental apparatus

Info

Publication number: CN108160138B
Application number: CN201810040964.7A
Authority: CN
Inventors: 顾优佳
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-01-16
Filing date: 2018-01-16
Publication date: 2021-03-02
Anticipated expiration: 2038-01-16
Also published as: CN108160138A

Abstract

The invention discloses a high school experiment device, which comprises a plate, a connecting piece and a clamping piece, wherein the plate is used for covering an opening of a beaker, and a central hole is formed in the central area of the plate; the connecting piece is connected to the central hole, a rolling hole is formed in the connecting piece, and the hole wall of the rolling hole is located on a spherical surface; the clamping piece is provided with a test tube clamping part, the outer wall of the clamping piece is matched with the hole wall of the rolling hole, and the outer wall of the clamping piece is connected in the rolling hole in a rolling mode. According to the high school experiment device provided by the invention, the plate covers the opening of the beaker, the connecting piece is connected to the central area of the plate, the test tube is clamped on the clamping piece, and the clamping piece is connected to the connecting piece in a rolling manner, so that the plate, the connecting piece and the clamping piece are operated conveniently and quickly; on the other hand can rock the test tube through rolling the holder, need not professional vibration equipment, and operation and structure are all comparatively simple.

Description

High school experimental apparatus

Technical Field

The invention relates to experimental equipment, in particular to a high school experimental device.

Background

In high-school chemical experiments and biological experiments, beakers, test tubes and glass tubes are commonly used experimental devices, wherein in part of the operations, one end of each test tube or glass tube needs to be continuously inserted into the solution in the beaker, such as gas collection in chemistry, water bath heating, oil bath heating and the like, and in the observation of permeation phenomena in biological experiments, one glass tube needs to be inserted into the solution in the beaker. In these operations, it is generally necessary to hold the test tube or glass tube by hand so that one end is in the beaker, or to hold the test tube by a test tube holder on the hob table so that one end is in the beaker. The iron stand is heavy, and the clamping operation steps of the test tube clamping piece are complex, so that the operation is inconvenient.

In still further operation, in order to be heated evenly or mix the different phase material in the test tube, need rock test tube or glass pipe, generally be equipped with the oscillating device in more professional laboratory, oscillate the test tube through the oscillating device, but most high school laboratories are difficult to be equipped with the oscillating device, need the student manual go to rock the test tube, and this makes the operation very inconvenient and the effect is unsatisfactory.

Disclosure of Invention

The invention aims to provide an experimental device for high school to overcome the defects in the technology.

In order to achieve the above purpose, the invention provides the following technical scheme:

an experimental apparatus for high school, comprising:

the plate is used for covering the opening of the beaker, and a central hole is formed in the central area of the plate;

the connecting piece is connected to the central hole and provided with a rolling hole, and the hole wall of the rolling hole is positioned on a spherical surface;

the clamping piece is provided with a test tube clamping part, the outer wall of the clamping piece is matched with the hole wall of the rolling hole, and the outer wall of the clamping piece is connected into the rolling hole in a rolling mode.

In the experimental device for high school, the connecting piece includes a block body, at least three extension rods are arranged on the block body along the circumferential direction, at least three overlapping grooves are arranged on the plate, and the overlapping grooves and the extension rods are in one-to-one corresponding overlapping joint;

a safety gap is arranged between the edge of the block body and the hole wall of the central hole.

In the experimental device for high school, the extension rod comprises a radial overlapping part and an axial supporting part which are connected, the radial overlapping part is overlapped in the overlapping groove, and the block body is supported above the central hole through the axial supporting part;

the test tube clamping part is a first clamping hole arranged on the clamping piece, the aperture of the clamping hole is sequentially reduced from one side facing the beaker to the side away from the beaker, and a first elastic pad is arranged on the inner wall of the clamping hole;

and a shaking handle is further arranged on the top surface of the clamping piece.

In the experimental device for high schools, the test tube clamping part is arranged in the second clamping hole in the clamping piece, the aperture of the second clamping hole is sequentially increased from one side, facing the beaker, to the side, deviating from the beaker, and the inner wall of the second clamping hole is provided with the second elastic pad.

In the experimental apparatus for high school, the second elastic pad includes a first elastic portion and a second elastic portion which are adjacent to each other, wherein the first elastic portion is disposed at an end of the second clamping hole having a larger radial dimension, the second elastic portion is disposed at an end of the second clamping hole having a smaller radial dimension, and an elastic modulus of the second elastic portion is smaller than an elastic modulus of the second elastic portion.

In the experimental device for high school, a first deformation gap is formed between the first elastic cushion and the second elastic cushion, and a plurality of second deformation gaps are arranged on the second elastic cushion.

The experimental device for high school comprises a clamping piece, and the clamping piece is provided with a radial annular bulge.

In the experimental device for high schools, the plate is further provided with the axial annular protrusion, and when the plate covers the opening of the beaker, the axial annular protrusion is attached to the inner wall or the outer wall of the opening of the beaker.

In the experimental device for high school, the edge part of the plate is provided with a plurality of fixing pieces, each fixing piece is connected with a radial rod, and each radial rod is sleeved with a spring;

the axial annular protrusion is formed by annularly arranging a plurality of protrusions, each protrusion is movably connected to the plate, and each protrusion is connected with each radial rod in a one-to-one correspondence mode.

In the experimental device for high school, the number of the fixing pieces, the number of the radial rods and the number of the convex parts are four;

the hand pulling assembly comprises two hand pulling assemblies, each hand pulling assembly comprises a hand pulling rod and two radial rods connected to the hand pulling rods;

the hand pull rod is located the outside of plate, two hand pull components are in the relative bilateral symmetry of plate arranges.

In the technical scheme, the plate covers the opening of the beaker, the connecting piece is connected to the central area of the plate, the test tube is clamped on the clamping piece, and the clamping piece is connected to the connecting piece in a rolling manner, so that the plate, the connecting piece and the clamping piece are operated conveniently and quickly; on the other hand can rock the test tube through rolling the holder, need not professional vibration equipment, and operation and structure are all comparatively simple.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a schematic structural diagram of an experimental apparatus for high school provided in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a high school experiment apparatus according to another embodiment of the present invention;

FIG. 3 is a top view of an experimental apparatus for high school, provided by an embodiment of the present invention;

FIG. 4 is a top view of a plate member provided in accordance with an embodiment of the present invention;

FIG. 5 is a top view of a connector according to an embodiment of the present invention;

figure 6 is a partial cross-sectional view of a plate member provided in accordance with an embodiment of the present invention;

FIG. 7 is a cross-sectional view of a clamp provided in accordance with one embodiment of the present invention;

fig. 8 is a cross-sectional view of a clip according to another embodiment of the present invention.

Description of reference numerals:

1. a plate member; 1.1, a central hole; 1.2, overlapping grooves; 2. a connecting member; 2.1, block body; 2.2, an extension rod; 3. a clamping member; 3.1, a test tube clamping part; 3.2, shaking the handle; 3.3, a first elastic part; 3.4, a second elastic part; 3.5, a first deformation gap; 4. a radial annular projection; 5. an axial annular projection; 6. a fixing member; 7. a radial rod; 8. a spring; 9. a hand lever; 10. and (4) a beaker.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

In the embodiment of the invention, the axial direction, the radial direction, the top, the bottom and other orientation words are all referred to a beaker in a normal use state of the high school experiment device, the axial direction is the axial direction of the beaker, the radial direction is the diameter direction of the beaker, the opening of the beaker is the top relative to the bottom, the bottom is the bottom relative to the opening, and other orientation words are analogized.

As shown in fig. 1 to 8, the experimental apparatus for high school provided by the embodiment of the present invention includes a plate 1, a connecting member 2 and a clamping member 3, wherein the plate 1 is used for covering an opening of a beaker 10, and a central area of the plate 1 is provided with a central hole 1.1; the connecting piece 2 is connected to the central hole 1.1, a rolling hole is arranged on the connecting piece, and the hole wall of the rolling hole is positioned on a spherical surface; the clamping piece 3 is provided with a test tube clamping part 3.1, the outer wall of the clamping piece 3 is matched with the hole wall of the rolling hole, and the outer wall of the clamping piece 3 is connected in the rolling hole in a rolling mode.

Specifically, the plate 1 is used for covering an opening of a beaker 10 in use, a central area of the plate is provided with a central hole 1.1, and the central hole 1.1 is used for accommodating the connecting piece 2; the connecting piece 2 is used for providing a spherical surface part on the inner wall surface, at least one part of the connecting piece 2 is thicker, for example, more than 3cm, the part with the thicker thickness is provided with a rolling hole, and the hole wall of the rolling hole is a part of the spherical surface; the roll hole is used for holding holder 3, the partly of outer wall of holder 3 also is the partly of sphere, and holder 3's outer wall cup joints can roll after in the roll hole, the radial dimension of the sphere that the place of the outer wall of holder 3 was located is less than the radial dimension of the sphere that the roll hole was located a little bit promptly, still be provided with test tube clamping part 3.1 on the holder 3, test tube clamping part 3.1 is used for the centre gripping test tube, it can be the porous structure, also can refer to other test tube clamping structure or glass tube clamping structure among the prior art.

When the experimental device for high school provided by the embodiment of the invention is used, the test tube is firstly inserted into the test tube clamping part 3.1, then the plate 1, the connecting piece 2 and the clamping piece 3 are placed on the beaker 10, the plate 1 covers the opening of the beaker 10, the bottom of the test tube is positioned in the beaker 10, and the plate 1, the connecting piece 2 and the clamping piece 3 can be assembled or directly overlapped, so that the experimental device for high school can be assembled again when being used. This is done by simply placing the bottom of the tube in the environment of the solution in the beaker 10. If the graduated cylinder needs to be shaken further, after the steps, the clamping piece 3 can be manually rolled, or the top end of the graduated cylinder can be manually held to shake, and the graduated cylinder can freely shake due to the rolling matching of the clamping piece 3 and the connecting piece 2, so that automatic oscillation equipment in the prior art is omitted.

According to the experimental device for high school provided by the embodiment of the invention, the plate 1 covers the opening of the beaker 10, the connecting piece 2 is connected to the central area of the plate 1, the test tube is clamped on the clamping piece 3, and the clamping piece 3 is connected to the connecting piece 2 in a rolling manner, so that the plate 1, the connecting piece 2 and the clamping piece 3 are operated conveniently and quickly; on the other hand can rock the test tube through rolling holder 3, need not professional vibration equipment, and operation and structure are all comparatively simple.

In this embodiment, further, the connecting member 2 includes a block 2.1, at least three extending rods 2.2 are circumferentially arranged on the block 2.1, at least three overlapping grooves 1.2 are arranged on the plate member 1, and each overlapping groove 1.2 is in one-to-one correspondence with each extending rod 2.2; the edge of block 2.1 with be provided with a relief clearance between the pore wall of centre bore 1.1, block 2.1 is for thicker part, and it is used for setting up the roll hole, and block 2.1 realizes being connected with plate 1 through extension rod 2.2, is provided with the relief clearance between the outer fringe of block 2.1 and the pore wall of centre bore 1.1, so on the one hand block 2.1 need not direct collision plate 1, uses comparatively safely, and on the other hand, it is comparatively convenient when connecting piece 2 is installed with plate 1, need not closely to laminate. As shown in fig. 6, further, the lap joint groove 1.2 includes the entering portion on top and the joint portion of bottom, and the appearance of joint portion is the same with the appearance of extension rod 2.2's tip, and the entering portion is the bigger structure of size ratio joint portion, so when extension rod 2.2 blocks, aim at joint portion more or less, can be by entering portion slip-in joint portion earlier, both simple to operate, the joint is firm again.

In one embodiment of the present invention, as shown in fig. 8, furthermore, the extension rod 2.2 includes a radial overlapping part and an axial supporting part which are connected, the axial supporting part refers to a structure which can support the block 2.1 in the axial direction of the beaker 10, and can be a vertical rod or an inclined rod, the radial overlapping part is overlapped in the overlapping groove 1.2, and the block 2.1 is supported above the central hole 1.1 through the axial supporting part; the test tube clamping part 3.1 is a first clamping hole arranged on the clamping piece 3, the aperture of the clamping hole is sequentially reduced from one side facing the beaker 10 to the side away from the beaker 10, namely the first clamping hole is of a hole-shaped structure with a smaller top and a larger bottom, and a first elastic pad is arranged on the inner wall of the clamping hole; still be provided with on holder 3's the top surface and rock handle 3.2, first cushion is used for providing the elasticity clamping-force for the centre gripping test tube, in this embodiment, arrange block 2.1 in plate 1's top, and set first centre gripping hole to big end down's structure, its effect lies in, during the centre gripping test tube with the test tube from the great radial dimension's of the bottom in first centre gripping hole one end fill in, so only need fill in the test tube a fraction can, in addition, because the position is higher, the scope of rocking of test tube can be bigger. Rock handle 3.2 can be the member or other structures that can supply the hand to hold, and it is used for handheld back circulation to rock holder 3 in order to rock the test tube, so be convenient for rock by a wide margin of test tube.

In another embodiment of the present invention, as shown in fig. 7, further, the test tube holding portion 3.1 is a second holding hole provided on the holding member 3, the diameter of the second holding hole increases from the side facing the beaker 10 to the side facing away from the beaker 10, and a second elastic pad is provided on the inner wall of the second holding hole. Unlike the embodiment provided in fig. 8, in this embodiment, the block 2.1 and the gripping member 3 are at the same or almost the same height as the plate member 1, and at the same time, the second gripping hole of the test tube is a hole-like structure with a large top and a small bottom, as opposed to the embodiment provided in fig. 8. So set up when using, the test tube directly fills in the second centre gripping hole with its bottom by the one end of the great radial dimension at the top in second centre gripping hole, rocks holder 3 this moment and makes the range that the test tube rocked less relatively.

In this embodiment, furthermore, the second elastic pad includes adjacent first elastic part 3.3 and second elastic part 3.4, wherein, first elastic part 3.3 set up in the second centre gripping hole has the one end of great radial dimension, second elastic part 3.4 set up in the second centre gripping hole has the one end of less radial dimension, the elastic modulus of first elastic part 3.4 is greater than the elastic modulus of second elastic part 3.4, and the deformation range that second elastic part 3.4 received the same pressure is bigger, and in the size design, one section of radial dimension that first elastic part 3.3 encloses is the same with the radial dimension of test tube, and like this when using, all parts of second elastic part 3.4 all warp, and the part of first elastic part 3.3 warp, provides great extrusion clamping force for the test tube as far as possible. It is evident that this composite elastic structure is equally applicable to the first elastic pad described above in connection with fig. 8.

In this embodiment, a first deformation gap 3.5 is provided between the first elastic portion and the second elastic portion, and a plurality of second deformation gaps are provided on the second elastic portion. First deformation clearance 3.5 and second are warp the clearance and are convenient for fill when second elastic component warp, so reduce the resistance of second elastic component, increase the area of contact of second elastic component and test tube, so increase the clamping-force of second elastic component to the test tube. It is evident that this composite elastic structure is equally applicable to the first elastic pad described above in connection with fig. 8.

In each embodiment of the present invention, further, the present invention further includes a radial annular protrusion 4, at least one of the outer walls of the two axial ends of the clamping member 3 is provided with the radial annular protrusion 4, the radial annular protrusion 4 is used as a limiting mechanism to prevent the clamping member 3 from rolling too much, when the clamping member 3 rolls too much, the radial annular protrusion 4 abuts against the upper connecting member 2 and cannot increase the rolling amplitude continuously, so that the limiting is realized.

In each embodiment of the present invention, further, the plate 1 is further provided with an axial annular protrusion 5, when the plate 1 covers the opening of the beaker 10, the axial annular protrusion 5 is attached to the inner wall or the outer wall of the opening of the beaker 10, and the axial annular protrusion 5 is used for limiting the plate 1, so as to prevent the plate 1 from sliding back and forth on the opening of the beaker 10 in the using process. The axial annular protrusion 5 may be an annular mechanism, such as an annular plate, but preferably, the axial annular protrusion 5 is formed by annularly arranging a plurality of protrusions, that is, the plurality of protrusions are annularly arranged to form the axial annular protrusion 5, at this time, the edge portion of the plate 1 is provided with a plurality of fixing pieces 6, each fixing piece 6 is connected with a radial rod 7, and each radial rod 7 is sleeved with a spring 8; the convex parts are movably connected to the plate 1 and are correspondingly connected with the radial rods 7 one by one, namely the convex parts can compress the spring 8 in the radial direction of the beaker 10 to reciprocate, so that the convex parts can be clamped on the beakers 10 with different radial sizes.

In each embodiment of the present invention, further, the number of the fixing element 6, the radial rod 7 and the protruding portion is four; the hand pulling assembly comprises two hand pulling assemblies, each hand pulling assembly comprises a hand pulling rod 9 and two radial rods 7 connected to the hand pulling rod 9; hand lever 9 is located the outside of plate 1, two the hand power subassembly is in the relative bilateral symmetry of plate 1 arranges that its effect lies in, and during the use, both hands open two hand lever 9 towards both sides, and the bellying moves the marginal portion of plate 1 promptly, realizes the biggest joint size, and on corresponding beaker 10 was received to the cover this moment, loosen hand lever 9 again, on the bellying butt realized fixing to the outer wall of beaker 10 under the spring 8 effect. Thus eliminating the need for a separate individual to move or control the boss.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. An experimental apparatus for high school, comprising:

the connecting piece is connected to the central hole, the thickness of at least one part of the connecting piece is more than 3cm, the part with the thickness of more than 3cm is provided with a rolling hole, and the hole wall of the rolling hole is positioned on a spherical surface;

the clamping piece is provided with a test tube clamping part, the outer wall of the clamping piece is matched with the hole wall of the rolling hole, and the outer wall of the clamping piece is connected in the rolling hole in a rolling manner;

the test tube clamping part is a second clamping hole arranged on the clamping piece, the aperture of the second clamping hole is sequentially increased from one side facing the beaker to the side away from the beaker, and a second elastic pad is arranged on the inner wall of the second clamping hole;

the second elastic pad comprises a first elastic part and a second elastic part which are adjacent, wherein the first elastic part is arranged at one end with a larger radial size on the second clamping hole, one section of the radial size surrounded by the first elastic part is the same as the radial size of the test tube, the second elastic part is arranged at one end with a smaller radial size on the second clamping hole, and the elastic modulus of the first elastic part is larger than that of the second elastic part;

a first deformation gap is formed between the first elastic part and the second elastic part, and a plurality of second deformation gaps are arranged on the second elastic part;

the clamping piece is characterized by also comprising a radial annular bulge, wherein at least one of the outer walls of the two axial ends of the clamping piece is provided with the radial annular bulge;

the plate is also provided with an axial annular bulge, and when the plate covers the opening of the beaker, the axial annular bulge is attached to the outer wall of the opening of the beaker;

the edge part of the plate is provided with a plurality of fixing pieces, each fixing piece is connected with a radial rod, and each radial rod is sleeved with a spring; the axial annular bulge is formed by annularly arranging a plurality of bulge parts, each bulge part is movably connected to the plate, and each bulge part is correspondingly connected with each radial rod one by one;

the number of the fixing pieces, the number of the radial rods and the number of the convex parts are four; the hand pulling assembly comprises two hand pulling assemblies, each hand pulling assembly comprises a hand pulling rod and two radial rods connected to the hand pulling rods; the hand pull rod is located the outside of plate, two hand pull components are in the relative bilateral symmetry of plate arranges.

2. The experimental facility of claim 1, wherein the connecting member comprises a block body, at least three extension rods are circumferentially arranged on the block body, at least three overlapping grooves are arranged on the plate member, and each overlapping groove is overlapped with each extension rod in a one-to-one correspondence manner;