CN210303776U

CN210303776U - Test tube rack

Info

Publication number: CN210303776U
Application number: CN201920769868.6U
Authority: CN
Inventors: 刘夏岚; 胡心怡; 王华光; 曹素岩; 肖粹
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-04-14
Anticipated expiration: 2029-05-27

Abstract

The utility model provides a pair of test-tube rack relates to test utensil technical field to alleviate the technical problem that current test-tube rack can not rotate. The test tube rack comprises a base, a rotating shaft and a test tube tray; the lower end of the rotating shaft is connected to the base, and the rotating shaft is configured to rotate around the axis of the rotating shaft; the test tube dish is opened and is equipped with a plurality of holes of placing that are used for placing the test tube, and the test tube dish is installed in the pivot. When using this test-tube rack to do the experiment, the operation test-tube dish makes the test tube coil the axis rotation of pivot, and the test tube that will want to observe rotates the direct observation in front of the eye, need not come to retrieve the test tube or swing head, convenient and fast.

Description

Test tube rack

Technical Field

The utility model belongs to the technical field of test utensil technique and specifically relates to a test-tube rack is related to.

Background

The test tube rack is the most basic laboratory instrument in a chemical laboratory for placing and drying test tubes, and sometimes the test tubes can be placed on the test tube rack to observe the phenomenon of a certain experiment. The existing 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.

However, the existing test tube rack is generally in a strip shape, and test tubes placed on the test tube rack are fixedly arranged along a straight line and cannot rotate. When observing the experimental phenomenon in a plurality of test tubes, especially when observing the gradient experiment, need swing the head back and forth or take off the test tube from the test-tube rack and observe alone, very inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a test-tube rack to alleviate the technical problem that current test-tube rack can not rotate.

The utility model provides a test tube rack, which comprises a base, a rotating shaft and a test tube tray;

the lower end of the rotating shaft is connected to the base, and the rotating shaft is configured to rotate around the axis of the rotating shaft;

the test tube dish is opened and is equipped with a plurality of holes of placing that are used for placing the test tube, just the test tube dish install in the pivot.

Further, the base comprises a shell and a rotator;

the rotating body is arranged in the shell, the lower end of the rotating shaft is connected to the rotating body, and the rotating body can rotate around the axis of the rotating shaft in the shell.

Furthermore, a communicating hole is formed in the top surface of the shell, and a connecting column is arranged on the top surface of the rotating body;

the upper end of the connecting column extends out of the communicating hole and is connected with the lower end of the rotating shaft.

Further, the rotating shaft can axially extend and retract along the rotating shaft, so that the distance between the test tube disc and the base is changed.

Furthermore, the rotating shaft comprises a plurality of shaft sections which are connected end to end, and the shaft section positioned at the lowest position is connected to the base;

the test tube disc is connected with the shaft sections, and the distance between the test tube disc and the base is changed by changing the number of the shaft sections between the test tube disc and the base.

Furthermore, one end of the shaft section is provided with an external thread, and the other end of the shaft section is provided with a threaded hole; when the rotating shaft comprises a plurality of shaft sections, the external threads of the shaft sections are matched with the internal threads of the adjacent shaft sections.

Further, the test-tube rack includes a plurality of test-tube dish, the top the test-tube dish is connected in the top the upper end of shaft part, other the test-tube dish is connected in two adjacent between the shaft part.

Further, the diameters of the placing holes on different test tube trays are different.

Further, the upper end of one of the shaft sections is connected with the test tube tray and penetrates through the test tube tray to be connected with the shaft section adjacent to the upper side, so that the test tube tray is connected between the two adjacent shaft sections.

Further, an elastic layer is arranged on the inner wall of the placing hole of the test tube tray.

The utility model provides a test tube rack, which comprises a base, a rotating shaft and a test tube tray; the lower end of the rotating shaft is connected to the base and is configured to rotate around the axis of the rotating shaft; the test tube dish is opened and is equipped with a plurality of holes of placing that are used for placing the test tube, and the test tube dish is installed in the pivot. When the test tube rack is used for carrying out an experiment, the base is placed or fixed on a test bed, and a plurality of test tubes are correspondingly placed in a plurality of placing holes of the test tube tray; because the pivot can rotate and carousel connection in the pivot around self axis, when observing the experimental phenomenon in a plurality of test tubes, operation test tube dish makes the test tube coil the axis rotation of pivot, and the test tube that will want to observe rotates the direct observation in front of the eye, need not come back to get test tube or swing head, convenient and fast.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a test tube rack provided in an embodiment of the present invention;

fig. 2 is a front view of a test tube rack provided in an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along the plane A-A in FIG. 2;

FIG. 4 is an enlarged view of a portion of the area C in FIG. 3;

fig. 5 is a front view of another embodiment of a test tube rack according to an embodiment of the present invention;

fig. 6 is a sectional view taken along the plane B-B in fig. 5.

Icon: 100-a base; 110-a housing; 111-connection hole; 120-a swivel; 121-connecting column; 200-a rotating shaft; 210-a shaft section; 300-a test tube tray; 310-placing holes.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is a schematic structural diagram of a test tube rack provided in an embodiment of the present invention; fig. 2 is a front view of a test tube rack provided in an embodiment of the present invention; FIG. 3 is a cross-sectional view taken along the plane A-A in FIG. 2; FIG. 4 is an enlarged view of a portion of the area C in FIG. 3; fig. 5 is a front view of another embodiment of a test tube rack according to an embodiment of the present invention; fig. 6 is a sectional view taken along the plane B-B in fig. 5.

The present embodiment provides a test tube rack, please refer to fig. 1 to 6 in the drawings of the specification together.

As shown in fig. 1 to 6, the test tube rack includes a base 100, a rotation shaft 200, and a test tube tray 300; the lower end of the rotating shaft 200 is connected to the base 100 and is configured to rotate around its own axis; the test tube tray 300 is opened with a plurality of placing holes 310 for placing test tubes, and the test tube tray 300 is mounted on the rotation shaft 200.

Specifically, the base 100 is made of a heavy material, such as steel, iron, or the like. The test tube rack is not easy to topple over after the base 100 is placed on the test bed. Of course, the base 100 may be directly fixed to the test bed by using glue or the like.

When the test tube rack is used for an experiment, the base 100 is placed or fixed on a test bed, and a plurality of test tubes are correspondingly placed in the plurality of placing holes 310 of the test tube tray 300; because pivot 200 can rotate and carousel connection in pivot 200 around self axis, when observing the experimental phenomenon in a plurality of test tubes, operation test tube dish 300 makes test tube dish 300 rotate around the axis of pivot 200, and the test tube that will want to observe rotates the direct observation in front of the eye, need not come to retrieve the test tube or swing head, convenient and fast.

Further, as shown in fig. 3 and 6, the base 100 includes a housing 110 and a swivel 120; the rotator 120 is disposed in the housing 110, the lower end of the rotating shaft 200 is connected to the rotator 120, and the rotator 120 can rotate around the axis of the rotating shaft 200 in the housing 110.

When the test tube rack is used for an experiment, the base 100 is placed on a test bed or the shell 110 is fixed on the test bed, the lower end of the rotating shaft 200 is connected to the rotating body 120, the test tube tray 300 is connected to the rotating shaft 200, and the test tube tray 300, the rotating shaft 200 and the rotating body 120 rotate around the axis of the rotating shaft 200 at the same time.

A gap exists between the housing 110 and the rotator 120, and lubricating oil or lubricating grease can be added into the gap, so that the abrasion between the rotator 120 and the housing 110 is reduced, and the rotation of the test tube tray 300 is smoother.

Further, as shown in fig. 4, a communication hole is formed in the top surface of the housing 110, and a connection column 121 is disposed on the top surface of the rotator 120; the upper end of the connection post 121 is extended from the communication hole and connected with the lower end of the rotation shaft 200.

Fig. 4 shows that the lower end of the rotating shaft 200 is provided with a connecting hole 111, and the connecting column 121 of the rotator 120 extends into the connecting hole 111 to realize the connection between the rotator 120 and the rotating shaft 200. Specifically, the lower end of the rotating shaft 200 is provided with a threaded hole, the outer side of the connecting column 121 of the rotator 120 is provided with an external thread, and the rotating shaft 200 is in threaded connection with the rotator 120.

Of course, the lower end of the rotating shaft 200 can be connected to the connecting column 121 by welding, bonding, or other methods.

Further, as shown in fig. 2 and 5, the shaft 200 can be extended and contracted along its own axis to change the distance between the cuvette tray 300 and the base 100. Specifically, fig. 5 is a result of the extension of the rotation shaft 200 in fig. 2.

The pivot 200 is flexible along self axis direction, can change the distance between test tube dish 300 and base 100, promptly, can change the distance of test tube dish 300 and test bench, and then makes the test tube that different length can be placed to the hole 310 of placing of test tube dish 300, makes this test-tube rack have stronger adaptability.

Further, the rotating shaft 200 includes at least one shaft segment 210; when the rotating shaft 200 includes a plurality of shaft segments 210, the shaft segments 210 are connected end to end, and the shaft segment 210 located at the lowest position is connected to the base 100; the tube tray 300 is connected to the shaft segments 210, and the distance between the tube tray 300 and the base 100 is changed by changing the number of shaft segments 210 between the tube tray 300 and the base 100.

The extension and contraction of the rotating shaft 200 can be realized by changing the number of the shaft sections 210 between the test tube tray 300 and the base 100, and the distance between the test tube tray 300 and the base 100 can be changed. When only one shaft section 210 is provided on the rotating shaft 200, the length of the rotating shaft 200 is the smallest, the distance between the test tube tray 300 and the base 100 is the shortest, the lower end of the shaft section 210 is connected with the rotating body 120, and the upper end of the shaft section 210 is connected with the test tube tray 300. The number of shaft segments 210 is increased to increase the distance between the cuvette tray 300 and the base 100.

Preferably, each shaft segment 210 is the same length, and only one length specification of shaft segments 210 need be manufactured. Of course, the lengths of the different axial segments 210 may also be different, and the different axial segments 210 are selected according to the actual needs of the experiment.

When the rack has only one tube tray 300, the tube tray 300 is attached to the upper end of the uppermost shaft section 210. When the test tube rack has a plurality of test tube trays 300, the uppermost test tube tray 300 is connected to the upper end of the uppermost shaft section 210, and the other test tube trays 300 are connected between two adjacent shaft sections 210. Fig. 1 to 6 show a case where the test tube rack has two test tube trays 300, an upper test tube tray 300 being connected to the upper end of the uppermost shaft section 210, and a lower test tube tray 300 being connected between two adjacent shaft sections 210.

Further, as shown in fig. 3 and 6, one end of the shaft section 210 is provided with an external thread, and the other end is provided with a threaded hole; where the shaft 200 includes a plurality of shaft segments 210, the external threads of the shaft segments 210 mate with the internal threads of the upper adjacent shaft segment 210.

Specifically, the outer side of the connecting column 121 of the rotator 120 is also provided with an external thread, and the connecting column 121 is in threaded connection with the lowermost shaft section 210.

The adjacent shaft sections 210 are connected through threads, are firm and reliable in connection and not easy to loosen, and the number of the shaft sections 210 between the test tube tray 300 and the base 100 is convenient to change so as to realize the test tube tray 300 and the test bed.

Of course, adjacent shaft segments 210 may be connected by other means. For example, one end of the shaft section 210 is provided with a plug hole, and the other end can extend into the plug hole of the adjacent shaft section 210; the extending end of the shaft section 210 extends into the insertion hole of the adjacent shaft section 210 above to realize the connection of the adjacent shaft sections 210; the connecting column 121 of the rotator 120 extends into the inserting hole of the shaft section 210 at the lowest position.

Further, as illustrated in fig. 1 to 6, the test tube rack includes a plurality of test tube trays 300 and a plurality of shaft sections 210; the uppermost tube tray 300 is connected to the upper end of the uppermost shaft section 210, and the other tube trays 300 are connected between two adjacent shaft sections 210.

Fig. 1 to 6 show a case where the test tube rack has two test tube trays 300, a plurality of shaft sections 210 are connected end to end, an upper test tube tray 300 is connected to an upper end of the uppermost shaft section 210, and a lower test tube tray 300 is connected between two adjacent shaft sections 210. Similarly, the tube rack may include three, four, etc. other numbers of shaft segments 210.

The distance between the lowermost test tube tray 300 and the base 100 is changed by changing the number of the shaft sections 210 between the lowermost test tube tray 300 and the base 100; by varying the number of shaft segments 210 between two adjacent tube trays 300, the distance between two adjacent tube trays 300, and thus the distance between the other tube trays 300 except the lowermost tube tray 300, and the base 100 is varied.

Further, as shown in fig. 3 and 6, the upper end of one shaft segment 210 is connected to the tube tray 300 and passes through the tube tray 300 to be connected to the upper adjacent shaft segment 210, so that the tube tray 300 is connected between two adjacent shaft segments 210.

The above structure enables a plurality of tube trays 300 to be connected to the rotating shaft 200 while enabling a plurality of shaft sections 210 to be connected end to end, and the distance between different tube trays 300 can be adjusted by changing the number of shaft sections 210.

Specifically, as shown in fig. 3 and 6, a threaded hole is formed in the middle of each test tube tray 300; one end of the shaft section 210 is provided with an external thread, and the other end is provided with a threaded hole. The threaded holes of the uppermost tube tray 300 mate with the external threads of the uppermost shaft segment 210. Other test tube trays 300 set up between two adjacent shaft segments 210 to one of them test tube tray 300 is the example, is located the external screw thread of this test tube tray 300 below shaft segment 210 and is connected with the screw hole cooperation of this test tube tray 300, and the external screw thread end of this test tube below shaft segment 210 passes this test tube tray 300 and is connected with the screw hole cooperation of the shaft segment 210 above this test tube tray 300.

Further, as shown in fig. 1, the diameters of the placement holes 310 on different cuvette trays 300 are different.

Different test tube trays 300 place the direct difference of hole 310, according to the specification selection of test tube in the experiment with test tube tray 300 that the test tube suits, make this test-tube rack can place the test tube of different specifications.

For example, according to the specification of a common test tube, the diameter of the placing hole 310 of one test tube tray 300 is set to 15mm, the diameter of the placing hole 310 of the other test tube tray 300 is set to 18mm, and the diameter of the placing hole 310 of the other test tube tray 300 is set to 25 mm.

Of course, the placing holes 310 with different diameters may be formed in the same test tube tray 300, so that the same test tube tray 300 can place test tubes of various specifications, and the test tube rack can have stronger applicability and can perform various experiments.

Further, as shown in fig. 1, the test tube tray 300 has a circular shape, and a plurality of placement holes 310 are annularly arrayed in the test tube tray 300.

The circular test tube tray 300 rotates more smoothly than other shapes. A plurality of holes 310 annular array of placing make a plurality of test tubes can the equipartition on test tube dish 300 at test tube dish 300, and the gravity of a plurality of test tubes that test tube dish 300 bore is more even, and is more steady during the rotation.

Of course, the tube tray 300 may be provided in other shapes such as a square, a regular triangle, and the like. The plurality of placement holes 310 may be arranged in other ways such as a rectangular array, a triangular array, etc. in the cuvette tray 300.

Further, the inner wall of the placing hole 310 of the test tube tray 300 is provided with an elastic layer.

The test tube is placed and is being placed hole 310 back, and the elastic layer presss from both sides the test tube tightly, and the elastic layer has the cushioning effect, prevents that the test tube from breaking in the experimentation.

The elastic layer is preferably a rubber layer, but may be another elastic material such as a silicone layer.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A test tube rack is characterized by comprising a base, a rotating shaft and a test tube tray;

2. The test tube rack of claim 1, wherein the base includes a housing and a swivel;

3. The test tube rack according to claim 2, wherein the top surface of the housing is provided with a communication hole, and the top surface of the rotator is provided with a connecting column;

4. The test tube rack according to claim 1, wherein the shaft is capable of extending and retracting axially along the shaft to vary the distance between the test tube tray and the base.

5. The test tube rack according to claim 1 or 4, wherein the rotating shaft comprises a plurality of shaft sections, the shaft sections are connected end to end, and the shaft section positioned at the lowest position is connected to the base;

6. The test tube rack according to claim 5, wherein one end of the shaft section is provided with an external thread, and the other end is provided with a threaded hole;

the external threads of the shaft sections are matched with the internal threads of the adjacent shaft sections.

7. The test tube rack of claim 5, comprising a plurality of said test tube trays, wherein an uppermost of said test tube trays is connected to an upper end of an uppermost of said shaft segments, and wherein other of said test tube trays are connected between two adjacent of said shaft segments.

8. The test tube rack according to claim 7, wherein the diameter of the placement hole is different for different test tube trays.

9. The test tube rack according to claim 7, wherein an upper end of one of the shaft sections is connected to the test tube tray and passes through the test tube tray to be connected to an upper adjacent shaft section, so that the test tube tray is connected between two adjacent shaft sections.

10. The test tube rack according to claim 1, wherein the inner wall of the placement hole of the test tube tray is provided with an elastic layer.