CN209968467U

CN209968467U - Laboratory is with preventing falling test-tube rack

Info

Publication number: CN209968467U
Application number: CN201920570575.5U
Authority: CN
Inventors: 邵一卓
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-01-21
Anticipated expiration: 2029-04-25

Abstract

The utility model belongs to the technical field of middle school student's experiment teaching equipment, concretely relates to laboratory is with preventing falling test-tube rack, place the board including the test tube, test tube fixed plate and base, its three are connected through the support column, and the test tube is placed and is equipped with the circular through-hole of a plurality of on the board, be provided with on the base with the hemisphere recess of circular through-hole one-to-one with be used for inserting the projection of placing the test tube upside down, sucking disc and antivrbration pad are evenly installed to the base bottom, install the clamping device corresponding with circular through-hole on the test tube fixed plate, clamping device includes two arc splint, the guide. The utility model discloses simple structure, convenient to use can independently fix the test tube, effectively prevent that the test tube from rocking the condition that leads to the reagent outflow to and prevent that the test-tube rack from turning on one's side and leading to the test tube to break, whole design has reduced the middle school student who is not familiar with the experiment operation widely to the loss of test tube, has also increased the security of experiment.

Description

Laboratory is with preventing falling test-tube rack

Technical Field

The utility model belongs to the technical field of middle school student's experiment teaching equipment, concretely relates to laboratory is with preventing falling test-tube rack.

Background

The test tube rack is the most basic laboratory instrument in a chemical laboratory for placing (sometimes, test tubes can be placed on the test tube rack to observe the phenomenon of a certain experiment) and drying the test tubes. The test tube rack is attached with a corresponding number of small wooden columns and small holes. The foraminous tube may be placed upright for use or to allow continued observation of the reaction. The cleaned test tube with the column can be placed upside down for air drying.

At present, test tubes are often used in experiments of middle school students, but many middle school students are not familiar with the operation of the experiments and the use of instruments, the test tubes are glass instruments with the largest loss in a laboratory of the middle school students, and the breakage of the test tubes brings many safety risks; when the test tube is dried in the air, water drops easily flow to the working table surface along the test tube rack, and the table surface becomes wet and dirties the table surface.

In addition, in order to demonstrate the experiment for the student, the test-tube rack often needs to be carried, however, the current test-tube rack often leads to the outflow of test-tube reagent because the test tube is fixed insecure when carrying, or because it is insecure to fix on the lectern, the phenomenon of turning on one's side of test-tube rack takes place easily, causes the damage of reagent or test tube in the test-tube, serious probably takes place the teaching incident.

In view of the above, the present invention is particularly proposed.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem that exists among the prior art, the utility model provides a laboratory is with preventing falling the test-tube rack can prevent effectively that the test tube from rocking and leading to the reagent outflow and prevent that the test-tube rack from turning on one's side and lead to the test tube to break, avoids taking place unsafe accident.

The to-be-solved technical problem of the utility model is realized through following technical scheme: the test tube placing plate, the test tube fixing plate and the base are connected in sequence from top to bottom through the supporting columns;

a plurality of circular through holes are uniformly formed in the test tube placing plate;

the test tube fixing plate is provided with clamping devices which correspond to the circular through holes one by one;

be provided with the hemispherical recess with circular through-hole one-to-one on the base, evenly install the projection that is used for inserting upside down and place the test tube on the base, the projection sets up in hemispherical recess's front portion, and the sucking disc is evenly installed to the base bottom.

Further, clamping device includes first arc splint and second arc splint, and spring coupling is passed through with the both sides of second arc splint to first arc splint, and second arc splint are fixed on the test tube fixed plate, and second arc splint motion can be kept away from to first arc splint.

Further, the both sides of first arc splint are equipped with the fixing base, and the spring mounting is on the fixing base, installs the guide rail on the test tube fixed plate, and the fixing base is passed to one side of guide rail, and the pull rod is installed to convex surface one side of first arc splint, and the pull rod runs through the test tube fixed plate, and its tip is fixed with the handle.

Preferably, the buffer pads are arranged on two sides of the first arc-shaped clamping plate and the second arc-shaped clamping plate.

Preferably, the inner cavity of the circular through hole is provided with a limiting gasket.

Preferably, the bottom of the convex column is provided with a circle of drainage grooves which are communicated through a drainage ditch.

Preferably, the bottom of the base is symmetrically provided with shock pads.

Preferably, the hemispherical groove is internally paved with sponge.

Preferably, a plug is arranged at the water outlet end of the drainage ditch.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this test-tube rack novel in design, rational in infrastructure, convenient to use can place the through-hole of the corresponding quantity of design on the board according to the frequency of use of not equidimension test tube at the test tube, installs corresponding clamping device on the test tube fixed plate, can fix every independent test tube, prevents that the test tube from rocking and leading to the reagent outflow, and clamping device adopts spring buffer structure in addition, can self-adaptation press from both sides tight degree, prevents to press from both sides broken test tube.

2. The sucking disc and the antivrbration pad are installed to the base bottom of test-tube rack, and the sucking disc can prevent effectively that the test-tube rack from turning on one's side owing to unexpected touching, and the antivrbration pad can reduce external vibrations and transmit in to the test tube to reduce the test tube and cause the damage because of vibrations, avoid taking place unsafe accident.

3. The base top of test-tube rack is installed and is inverted the projection of placing the test tube to and the bottom of projection is provided with round drainage groove, and drainage groove is linked together through the escape canal, and the drainage export is provided with the end cap. Through the design, water can be effectively prevented from flowing to the working table surface along the test tube rack, and the table surface is kept clean.

Drawings

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

FIG. 2 is another schematic structural view of embodiment 1 of the present invention;

fig. 3 is a bottom view of embodiment 1 of the present invention;

FIG. 4 is a schematic structural view of the test tube fixing plate of the present invention;

FIG. 5 is an enlarged view of the portion B;

FIG. 6 is a top view of the fixing plate of the test tube of the present invention;

FIG. 7 is an enlarged sectional view A-A;

fig. 8 is a schematic structural view of embodiment 2 of the present invention;

fig. 9 is another schematic structural view of embodiment 2 of the present invention.

In the figure: 1. a base; 2. a support pillar; 3. a test tube fixing plate; 4. a test tube placing plate; 5. a convex column; 6. a clamping device; 7. a box cover; 8. a box body; 9. a glass window; 11. A hemispherical recess; 12. a plug; 13. a crash pad; 14. a suction cup; 41. a circular through hole; 42. a limiting washer; 51. A drainage groove; 52. a drainage ditch; 61. a handle; 62. a first arc splint; 63. a second arc-shaped splint; 64. a guide rail; 65. a cushion pad; 66. a spring; 67. a pull rod; 68. a fixed seat; 71. a handle; 72. locking; 81. and (7) a hinge.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It is to be understood that such description is merely illustrative and not restrictive of the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Example 1:

the utility model provides a laboratory is with preventing falling test-tube rack, as shown in fig. 1-7, place board 4, test tube fixed plate 3 and base 1 including the test tube, the test tube is placed board 4, test tube fixed plate 3 and base 1 from the top down and is looped through two support columns 2 of left and right sides and connect, and the height of support column 2 can be according to the height decision of placing the test tube, a plurality of circular through-hole 41 has evenly been seted up on the test tube is placed board 4, and preferred circular through-hole 41 is on same straight line with the centre of a circle of support column 2, and circular through-hole 41 is used for placing the test tube, and the diameter of circular through-hole 41 can be according to the frequency that the test tube used and the size of test tube and correspond the setting, sets up eight circular through-holes 41 that the bilateral symmetry size is unequal as this embodiment, and the inner chamber of preferred circular through-hole 41 is provided with spacing packing ring 42, spacing packing ring 42 is.

The base 1 is provided with hemispherical grooves 11 which correspond to the circular through holes 41 one by one, for example, eight hemispherical grooves 11 which correspond to the circular through holes 41 one by one are provided in the embodiment, the hemispherical grooves 11 are used for clamping when the test tube is normally placed, and preferably, a layer of sponge with the thickness of 2-4mm is laid in the hemispherical grooves 11 and used for protecting the test tube; as shown in fig. 1-2, the width of the base 1 is wider than the tube placing plate 4 and the tube fixing plate 3, the base 1 is uniformly provided with a convex column 5 for placing the tube in an inverted manner, the convex column 5 is arranged in front of the hemispherical groove 11 and has a certain distance with the tube placing plate 4 and the tube fixing plate 3 to ensure that the tube can be inserted into the convex column 5 when being dried, the convex column 5 is preferably in a truncated cone shape, and the diameter of the bottom is larger than that of the top, so that the tube can be dried stably; a circle of drainage grooves 51 are formed in the contact surface of the convex column 5 and the base, the drainage grooves 51 are communicated through drainage ditches 52, plugs 12 are arranged at the water outlet ends of the drainage ditches 52, so that when the test tube is inserted on the convex column 5 upside down and dried, water drops fall into the drainage grooves 51 and are finally discharged through the drainage ditches 52, and the problem that the table top is polluted due to the fact that the water drops flow onto the working table top along the test tube rack can be effectively solved; the bottom of base 1 evenly installs the antivrbration pad 13 of stabilizing sucking disc 14 and symmetry, evenly installs the antivrbration pad 13 of four circular sucking discs 14 and two symmetries like this embodiment, sucking disc 14 can prevent effectively that the test-tube rack from turning on one's side because unexpected touching, and antivrbration pad 13 can reduce external vibrations and transmit in to the test tube to reduce the test tube and cause the damage because of vibrations, avoid taking place unsafe accident.

The test tube fixing plate 3 is arranged in the middle of the base 1 and the test tube placing plate 4, the test tube fixing plate 3 is provided with a clamping device 6 which is one-to-one with the circular through hole 41, as shown in fig. 4-7, the clamping device 6 comprises a first arc-shaped clamping plate 62 and a second arc-shaped clamping plate 63, springs 66 are arranged on two sides of the first arc-shaped clamping plate 62 and the second arc-shaped clamping plate 63, the first arc-shaped clamping plate 62 and the second arc-shaped clamping plate 63 are elastically connected by the springs 66, the second arc-shaped clamping plate 63 is fixed on the test tube fixing plate 3, the first arc-shaped clamping plate 62 can move away from the second arc-shaped clamping plate 63 under the action of external force, the adjustable through holes formed by the first arc-shaped clamping plate 62 and the second arc-shaped clamping plate 63 are arranged, the hole distance of the adjustable through holes is generally smaller than 0.5-2mm of the corresponding circular through hole when the springs 66 are in a, preventing abrasion of the test tube.

The both sides of first arc splint 62 respectively are equipped with fixing base 68, and spring 66 installs at fixing base 68 and correspond position elastic connection in second arc splint 63, is fixed with guide rail 64 on the test tube fixed plate 3, and guide rail 64 passes fixing base 68 with the fixed relative one side of test tube fixed plate 3, guide rail 64 can set up the multiunit with spring 66 according to the thickness of arc splint, and the symmetric distribution is on arc splint both sides fixing base, and pull 67 is installed to convex surface one side of first arc splint 62, and pull rod 67 runs through test tube fixed plate 3, and its tip is fixed with handle 61, handle 61 is preferably flat cylinder, and handle 61 excircle profile is provided with anti-skidding line.

Through the arrangement, when an experimenter places a test tube, the first arc-shaped clamping plate 62 is far away from the second arc-shaped clamping plate 63 along the guide rails 64 on the two sides by pulling the handle 61 by hand and under the drive of the pull rod 67, so that the hole distance formed by the two arc-shaped clamping plates is enlarged, the test tube can conveniently stretch into the test tube, and after the test tube is placed correctly, the handle 61 is slowly loosened, and the first arc-shaped clamping plate 62 and the second arc-shaped clamping plate 63 clamp the test tube under the action of the spring 66; in order to prevent the individual experimenter from misoperation, cushion pads 65 are preferably arranged on two sides of the first arc-shaped clamping plate 62 and the second arc-shaped clamping plate 63 or the fixing seat 68, the cushion pads 65 are made of elastic soft materials, and a spring buffer structure is adopted, so that the clamping degree can be self-adapted, and the test tube is prevented from being broken.

Example 2:

different from the above embodiment, in that a partial improvement is made on the basis of embodiment 1, to solve the problem of the test tube rack during the transportation process, as shown in fig. 8-9, a box body 8 and a box cover 7 are added on the basis of embodiment 1, the box body 8 comprises a bottom surface, two side surfaces and a back surface, and a front glass window 9 for observing the experiment, the box body 8 is hinged with the box cover 7 through a hinge 81, when the test tube rack needs to be transported, the box cover 7 is connected with the box body 8 through a lock catch 72, preferably, a handle 71 is arranged on the box cover 7, and a suction cup 14 and a shock pad 13 are arranged on the bottom surface of the box body 8, which have the same functions as embodiment 1.

Through the improvement, the test tube rack is carried, because inside clamping device 6 can fix every independent test tube, only needs locking box 8 and case lid 7, then portable handle 71 can remove the test tube rack, avoids the direct contact test tube, places the test tube and damages, avoids taking place unsafe accident.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. The utility model provides a laboratory is with preventing falling test-tube rack which characterized in that: the test tube placing device comprises a test tube placing plate (4), a test tube fixing plate (3) and a base (1), wherein the test tube placing plate (4), the test tube fixing plate (3) and the base (1) are sequentially connected through a supporting column (2) from top to bottom;

a plurality of circular through holes (41) are uniformly formed in the test tube placing plate (4);

the test tube fixing plate (3) is provided with clamping devices (6) which correspond to the circular through holes (41) one by one;

be provided with on base (1) and half spherical groove (11) with circular through-hole (41) one-to-one, evenly install on base (1) and be used for inserting backward and place projection (5) of test tube, projection (5) set up in the front portion of half spherical groove (11), and sucking disc (14) are evenly installed to base (1) bottom.

2. The laboratory is with preventing falling test-tube rack according to claim 1, characterized in that: clamping device (6) include first arc splint (62) and second arc splint (63), spring (66) are passed through with the both sides of second arc splint (63) in first arc splint (62) and are connected, second arc splint (63) are fixed on test tube fixed plate (3), second arc splint (63) motion can be kept away from in first arc splint (62).

3. The laboratory is with preventing falling test-tube rack according to claim 2, characterized in that: the both sides of first arc splint (62) are equipped with fixing base (68), install on fixing base (68) spring (66), install guide rail (64) on test tube fixed plate (3), fixing base (68) are passed to one side of guide rail (64), pull rod (67) are installed to convex surface one side of first arc splint (62), pull rod (67) run through test tube fixed plate (3), and its tip is fixed with handle (61).

4. The laboratory is with preventing falling test-tube rack according to claim 2, characterized in that: and cushion pads (65) are arranged on two sides of the first arc-shaped clamping plate (62) and the second arc-shaped clamping plate (63).

5. The laboratory is with preventing falling test-tube rack according to claim 1, characterized in that: and a limiting gasket (42) is arranged in the inner cavity of the circular through hole (41).

6. The laboratory is with preventing falling test-tube rack according to claim 1, characterized in that: the bottom end of the convex column (5) is provided with a circle of drainage grooves (51), and the drainage grooves (51) are communicated through drainage ditches (52).

7. The laboratory is with preventing falling test-tube rack according to claim 1, characterized in that: and shock-proof pads (13) are symmetrically arranged at the bottom of the base (1).

8. The laboratory is with preventing falling test-tube rack according to claim 1, characterized in that: sponge is laid in the hemispherical groove (11).

9. The laboratory is with preventing falling test-tube rack according to claim 6, characterized in that: and a plug (12) is arranged at the water outlet end of the drainage ditch (52).