Combined test tube rack

Abstract

The utility model relates to the technical field of test tube racks, in particular to a combined test tube rack which comprises a first test tube rack single body, a second test tube rack single body and a third test tube rack single body, the second test tube rack single body is opened or stored in the first test tube rack single body in a sliding manner, and the third test tube rack single body is opened or stored in the second test tube rack single body in a sliding manner; each test tube rack single body comprises a bottom plate, a connecting rod and a placing plate, the placing plate is movably mounted right above the bottom plate through the connecting rod, the plate surface of the placing plate is parallel to the plate surface of the bottom plate, and a plurality of placing holes for placing test tubes are formed in the placing plate at intervals; when the second test tube rack single body is stored, the placing hole of the second test tube rack single body is opposite to the placing hole of the first test tube rack single body, and when the third test tube rack single body is stored, the placing hole of the third test tube rack single body is opposite to the placing hole of the second test tube rack single body. According to the test tube rack, the test tube placing holes can be increased or decreased according to the use amount of test tubes, and a plurality of test tube racks do not need to be placed on a test bed.

Description

TECHNICAL FIELD

[0001] The utility model relates to test -tube rack technical field, especially in combination type test -tube rack. BACKGROUND

[0002] Test tube is the experimental tool commonly used in the laboratory, and test tube rack is the most basic test instrument for placing and airing test tube. The test tube racks currently used are usually two layers, wherein the upper layer is provided with test tube holes, and the lower layer is provided with test tube supporting parts. However, the traditional test tube rack still has the following problems in use: 1. The distance between the upper and lower layers is not adjustable, which leads to the problem that when different test tubes are placed on the test tube rack, the test tubes with small height are inserted into the test tube rack, and the test tubes may be submerged in the test tube rack holes, which is not convenient for taking out the test tubes, and the test tubes with different heights cannot be used flexibly; 2. The number of test tubes that can be accommodated by the traditional test tube rack is fixed. When the number of test tubes used in the experiment is large, multiple test tube racks need to be placed on the test bench, which is easy to cause confusion in the laboratory. Moreover, even if the number of test tubes needed is small, in order to adapt to test tubes with different heights, multiple test tube racks with different specifications need to be placed on the test bench, which occupies a large space. That is, the commonly used test tube rack cannot meet the placement requirements of different test tube heights and numbers, and it is very inconvenient in actual use.

[0003] The utility model with the application number CN202322946645.1 discloses a telescopic test tube rack. The test tube rack can adjust the extension of the test tube rack according to the number of experimental test tubes by sliding extension, so as to obtain the number of suitable test tube holes. It does not need to prepare multiple test tube racks, and it is also convenient to store the excess test tube racks when the number of test tubes is small, thereby reducing the occupied space of the test bench. However, the utility model still has the problem that the distance between the upper and lower layers of the test tube rack cannot be adjusted, which is still not very convenient to use. SUMMARY

[0004] In view of the above, it is necessary to provide a combined test tube rack. The test tube rack can increase or decrease the test tube placement holes according to the amount of test tubes, does not need to place multiple test tube racks on the test bench, and is beneficial to keeping the test bench neat.

[0005] The utility model discloses a combined test tube rack which comprises a plurality of test tube rack monomers, i.e., a first test tube rack monomer, a second test tube rack monomer and a third test tube rack monomer.

[0006] Further, the placement plate is movably arranged on the connecting rod, and the connecting rod is provided with a limiting device for preventing the placement plate from sliding on the connecting rod.

[0007] Further, the placement plate is detachably connected to the connecting rod.

[0008] Further, the limiting device comprises limiting blocks and a plurality of threaded segments arranged at intervals on the connecting rod, the placement plate is arranged on the limiting blocks, the limiting blocks are movably arranged on the connecting rod, and the connecting rod is threadedly connected to the threaded segments.

[0009] Further, at least one connecting rod on each test tube rack monomer is provided with a locking block, the locking block is movably arranged on the connecting rod, the connecting rod is threadedly connected to the threaded segments, and the locking block and the limiting block are arranged on opposite sides of the placement plate.

[0010] Further, the top of the bottom plate of each test tube rack monomer is provided with a plurality of placement positions for receiving the bottom of a test tube, and each placement position on each test tube rack monomer is in one-to-one correspondence with a placement hole.

[0011] Further, the top of the bottom plate of the first and second test tube rack monomers is provided with a sliding groove, which is not communicated with the placing position; the bottom of the bottom plate of the second and third test tube rack monomers is provided with a sliding block, which is adapted to the sliding groove; the second test tube rack monomer is slidably connected with the first test tube rack monomer through the sliding block on the second test tube rack monomer sliding on the sliding groove of the first test tube rack monomer; the third test tube rack monomer is slidably connected with the second test tube rack monomer through the sliding block on the third test tube rack monomer sliding on the sliding groove of the second test tube rack monomer.

[0012] Further, the bottom of the bottom plate of the second and third test tube rack monomers is provided with a supporting leg, the supporting leg of the second test tube rack monomer is rotatably installed at the end of the second test tube rack monomer away from the first test tube rack monomer when the second test tube rack monomer is slid open from the first test tube rack monomer; the supporting leg of the third test tube rack monomer is rotatably installed at the end of the third test tube rack monomer away from the second test tube rack monomer when the third test tube rack monomer is slid open from the second test tube rack monomer; the supporting leg is flipped to be perpendicular or parallel to the bottom plate of the test tube rack monomer; when the supporting leg is rotated to be perpendicular to the bottom plate of the test tube rack monomer, the surface of the supporting leg not connected with the test tube rack monomer is flush with the bottom surface of the bottom plate of the first test tube rack monomer.

[0013] Further, the bottom plate of the second and third test tube rack monomers is provided with a placing groove, the supporting leg is accommodated in the placing groove when the supporting leg is flipped to be parallel to the bottom plate of the test tube rack monomer.

[0014] Further, four connecting rods are arranged on each bottom plate, and the four connecting rods are installed at the four corners of the bottom plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1、the utility model discloses a first test tube rack monomer, a second test tube rack monomer, a third test tube rack monomer, the second test tube rack monomer is slid open or is accomodated in the first test tube rack monomer internally, the third test tube rack monomer is slid open or is accomodated in the second test tube rack monomer internally.

[0017] 2. The utility model discloses a placing plate movable and connects the connecting rod, be provided with the limiting device for preventing the placing plate on the connecting rod from sliding on the connecting rod, through the position of placing plate on the connecting rod is adjusted, then uses the limiting device and carries out the limiting, can adjust the relative distance of placing plate and bottom plate, thereby the applicability of different height's test tube is applicable, avoid the test tube of small height and place and enter the placing hole.

[0018] 3. The utility model discloses can store or open the test tube stand single body, the test tube number that one combined test tube stand can place, equivalent to the test tube number that multiple traditional test tube stands can place, still can adjust the relative distance of placing plate and bottom according to the height of test tube stand, can satisfy the placing requirement of different height's test tube, need not place multiple test tube stands on the test bench, be favorable to keeping the neat of test bench. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front view when the first test tube stand single body and the second test tube stand single body of the utility model are stored.

[0020] Figure 2 It is the side view when the first test tube stand single body and the second test tube stand single body of the utility model are stored.

[0021] Figure 3 It is the perspective view when the first test tube stand single body and the second test tube stand single body of the utility model are stored.

[0022] Figure 4 It is the perspective view when the second test tube stand single body of the utility model slides and opens.

[0023] Figure 5 It is the front view when the first test tube stand single body and the second test tube stand single body of the utility model slide and open.

[0024] Figure 6 It is the perspective view when the first test tube stand single body and the second test tube stand single body of the utility model slide and open.

[0025] MAIN ELEMENT SYMBOL EXPLANATION

[0026] In the drawing: 1 - first test tube stand single body, 2 - second test tube stand single body, 3 - third test tube stand single body,

[0027] 14 - bottom plate, 141 - placing position, 142 - sliding slot, 143 - sliding block, 144 - support foot, 145 - placing groove,

[0028] 15 - connecting rod, 151 - threaded section, 152 - limiting block, 153 - locking block,

[0029] 16 - placing plate, 161 - placing hole.

[0030] The following specific embodiments will further illustrate the utility model in combination with the above-mentioned drawings. Specific embodiments

[0031] Please refer to Figures 1-6 In a preferred embodiment of the utility model, a combined test tube rack comprises a plurality of test tube rack monomers, which are respectively a first test tube rack monomer 1, a second test tube rack monomer 2 and a third test tube rack monomer 3. The second test tube rack monomer 2 is slidably opened or stored in the first test tube rack monomer 1, and the third test tube rack monomer 3 is slidably opened or stored in the second test tube rack monomer 2. Each test tube rack monomer comprises a bottom plate 14, a connecting rod 15 and a placement plate 16. The placement plate 16 is movably mounted above the bottom plate 14 by the connecting rod 15, and the plate surface of the placement plate 16 is parallel to the plate surface of the bottom plate 14. A plurality of placement holes 161 for placing test tubes are formed on the placement plate 16 in a spaced manner. When the second test tube rack monomer 2 is stored, the placement holes 161 of the second test tube rack monomer 2 are opposite to the placement holes 161 of the first test tube rack monomer 1. When the third test tube rack monomer 3 is stored, the placement holes 161 of the third test tube rack monomer 3 are opposite to the placement holes 161 of the second test tube rack monomer 2.

[0032] Before conducting an experiment, an experimenter generally plans the steps of the experiment. According to the planning of the experiment, the number of test tubes needed can be known. If the number of test tubes needed is small, the second test tube rack monomer 2 is stored in the first test tube rack monomer 1, and the third test tube rack monomer 3 is stored in the second test tube rack monomer 2. At this time, since the placement holes 161 of the second test tube rack monomer 2 are opposite to the placement holes 161 of the first test tube rack monomer 1, and the placement holes 161 of the third test tube rack monomer 3 are opposite to the placement holes 161 of the second test tube rack monomer 2, the test tubes will not be affected when inserted into the placement holes 161. If the number of test tubes needed is large, the second test tube rack monomer 2 can be slidably pulled out of the first test tube rack monomer 1, and the third test tube rack monomer 3 can be slidably pulled out of the second test tube rack monomer 2. The number of test tube holes into which the test tubes can be inserted will also increase accordingly. The number of test tubes that can be placed in a combined test tube rack is equivalent to the number of test tubes that can be placed in multiple traditional test tube racks. Therefore, multiple test tube racks do not need to be placed on the test bench, which is conducive to keeping the test bench neat. Preferably, a plurality of placement positions 141 are formed on the top of the bottom plate 14 of each test tube rack monomer. The placement positions 141 are used to accommodate the bottom of the test tube. The placement positions 141 on each test tube rack monomer are in one-to-one correspondence with the placement holes 161. The bottom of the test tube can be accommodated by the placement positions 141 on the bottom plate 14.

[0033] Preferably, the placing plate 16 is movably arranged on the connecting rod 15, and the connecting rod 15 is provided with a limiting device for preventing the placing plate 16 from sliding on the connecting rod 15; by adjusting the position of the placing plate 16 on the connecting rod 15, the relative distance between the placing plate 16 and the bottom plate 14 can be adjusted, so as to be suitable for test tubes of different heights, and avoid that the test tubes with small height are placed into the placing hole 161. In the embodiment, the limiting device comprises a limiting block 152 and a plurality of threaded segments 151 arranged at intervals on the rod body of the connecting rod 15, and the placing plate 16 is arranged on the limiting block 152, the limiting block 152 is movably arranged on the connecting rod 15, and the connecting rod 15 is threadedly connected at the threaded segments 151. Since the height of the common test tube is determined, and the commonly used test tubes mainly have a height of 100 mm, 150 mm, 180 mm and 200 mm, the threaded segments 151 are arranged to match the height of the commonly used test tubes, when the limiting block 152 is threadedly connected with the first threaded segment 151 from bottom to top, the relative distance between the placing plate 16 and the bottom plate 14 is less than 100 mm, when the limiting block 152 is threadedly connected with the second threaded segment 151 from bottom to top, the relative distance between the placing plate 16 and the bottom plate 14 is less than 150 mm, when the limiting block 152 is threadedly connected with the third threaded segment 151 from bottom to top, the relative distance between the placing plate 16 and the bottom plate 14 is less than 180 mm, and when the limiting block 152 is threadedly connected with the third threaded segment 151 from bottom to top, the relative distance between the placing plate 16 and the bottom plate 14 is less than 200 mm, and the skilled in the art can also adjust the interval distance of the threaded segments 151 according to the height of the test tube; when used, the experimenter adjusts the placing plate 16 to a certain height according to the height of the test tube to be used, then threadedly connects the limiting block 152 with the corresponding threaded segment 151, at this time, the placing plate 16 is arranged on the limiting block 152, so that the placing plate 16 and the bottom plate 14 are kept at a certain distance.

[0034] More preferably, at least one connecting rod 15 on each of the test tube rack monomers is provided with a locking block 153 movably sleeved on the connecting rod 15 and threadedly connected to the connecting rod 15 at the threaded section 151, and the locking block 153 and the limiting block 152 are arranged on opposite sides of the placement plate 16, so that the placement plate 16 cannot move upward or downward on the connecting rod 15. In addition, when the second test tube rack monomer 2 is stored, the connecting rod 15 thereon movably penetrates the placement hole 161 in the first test tube rack monomer 1; when the third test tube rack monomer 3 is stored, the connecting rod 15 thereon movably penetrates the placement hole 161 in the first test tube rack monomer 1 and the second test tube rack monomer 2. When the second test tube rack monomer 2 needs to be stored, the placement plate 16 on the first test tube rack monomer 1 can be movably adjusted to a position higher than the height of the connecting rod 15 on the second test tube rack monomer 2, and the second test tube rack monomer 2 can be stored in the first test tube rack monomer 1. The placement plate 16 on the second test tube rack monomer 2 can be adjusted to the lowest position, and at this time, the height of the placement plate 16 on the first test tube rack monomer 1 can be lowered, and the placement hole 161 on the placement plate 16 movably penetrates the connecting rod 15 on the second test tube rack monomer 2, and the connecting rod 15 on the second test tube rack monomer 2 does not interfere with the height adjustment of the placement plate 16 on the first test tube rack monomer 1. The third test tube rack monomer 3 can be stored in the same way, and the storage of the first test tube rack monomer 1 and the second test tube rack monomer 2 does not affect the height adjustment of the placement plate 16 on the first test tube rack monomer 1. The second test tube rack monomer 2 and the third test tube rack monomer 3 can be opened in a similar way. In order to more conveniently store and open the test tube rack monomers, in the embodiment, the placement plate 16 is detachably connected to the connecting rod 15, and when the test tube rack monomers need to be opened or stored, the placement plate 16 on the first test tube rack monomer 1 or the second test tube rack monomer 2 can be detached, and when the test tube rack monomers need to be opened or stored in the opened or stored state, the placement plate 16 is installed again, thereby avoiding the step of adjusting the placement plate 16 to a certain height and making the adjustment more convenient. In addition, four connecting rods 15 are arranged on each bottom plate 14, and the four connecting rods 15 are respectively arranged at the four corners of the bottom plate 14. When the placement plate 16 is arranged on the connecting rod 15, the four corners of the placement plate 16 movably penetrate a corresponding connecting rod 15, the placement plate 16 can be limited from the four corners of the placement plate 16, and the stability of the limitation is ensured.

[0035] In the embodiment, the second rack monomer 2 and the third rack monomer 3 are slidably accommodated or opened by the following structure: a sliding groove 142 is formed on the top of the bottom plate 14 of the first rack monomer 1 and the second rack monomer 2, and the sliding groove 142 is not communicated with the placing position 141; a sliding block 143 is installed on the bottom of the bottom plate 14 of the second rack monomer 2 and the third rack monomer 3, and the sliding block 143 is adapted to the sliding groove 142; the second rack monomer 2 is slidably connected with the first rack monomer 1 by the sliding block 143 on the second rack monomer 2 sliding on the sliding groove 142 of the first rack monomer 1; and the third rack monomer 3 is slidably connected with the second rack monomer 2 by the sliding block 143 on the third rack monomer 3 sliding on the sliding groove 142 of the second rack monomer 2.

[0036] Preferably, the bottom plate 14 of the second rack monomer 2 and the third rack monomer 3 is provided with a supporting leg 144, the supporting leg 144 of the second rack monomer 2 is rotatably installed at the end of the second rack monomer 2 away from the first rack monomer 1 when the second rack monomer 2 is slidably opened from the first rack monomer 1; the supporting leg 144 of the third rack monomer 3 is rotatably installed at the end of the third rack monomer 3 away from the second rack monomer 2 when the third rack monomer 3 is slidably opened from the second rack monomer 2; the supporting leg 144 is flipped to be perpendicular or parallel to the bottom plate 14 of the rack monomer where the supporting leg 144 is located by rotating the supporting leg 144 relative to the rack monomer; when the supporting leg 144 is rotated to be perpendicular to the bottom plate 14 of the rack monomer where the supporting leg 144 is located, the surface of the supporting leg 144 not connected with the rack monomer is flush with the bottom surface of the bottom plate 14 of the first rack monomer 1. Under the action of the supporting leg 144, it can be ensured that the bottom plate 14 and the placing plate 16 are in a horizontal state after the rack monomer is opened. More preferably, the bottom plate 14 of the second rack monomer 2 and the third rack monomer 3 is provided with a placing groove 145, and the supporting leg 144 is accommodated in the placing groove 145 when the supporting leg 144 is flipped to be parallel to the bottom plate 14 of the rack monomer where the supporting leg 144 is located. When the rack monomer needs to be accommodated, the supporting leg 144 is flipped and accommodated in the placing groove 145, and does not interfere with the sliding of the rack monomer.

[0037] The above description is a detailed description of the preferred and feasible embodiment of the utility model, but the embodiment is not used to limit the patent application range of the utility model, and any equivalent change or modification change completed under the technical spirit of the utility model should belong to the patent range covered by the utility model.

Claims

1. A combination rack for test tubes, characterized in that, The utility model provides a multi -functional test tube rack, including a plurality of test tube rack monomer, respectively first test tube rack monomer, second test tube rack monomer, third test tube rack monomer, second test tube rack monomer slides open or accomodates in first test tube rack monomer inside, third test tube rack monomer slides open or accomodates in second test tube rack monomer inside, every test tube rack monomer includes bottom plate, connecting rod and placing plate, the placing plate is installed in the bottom plate directly above through connecting rod, its board surface is parallel with the board surface of bottom plate, a plurality of placing holes for placing test tube are formed on the placing plate and are spaced, when second test tube rack monomer is accomodated, the placing hole of second test tube rack monomer is opposite with the placing hole of first test tube rack monomer, when third test tube rack monomer is accomodated, the placing hole of third test tube rack monomer is opposite with the placing hole of second test tube rack monomer.

2. The combination tube rack of claim 1 wherein: The placing plate is movably arranged on the connecting rod, and the connecting rod is provided with a limiting device for preventing the placing plate from sliding on the connecting rod, when the second test tube rack monomer is accomodated, the connecting rod on the second test tube rack monomer is movably arranged in the placing hole of the first test tube rack monomer, and when the third test tube rack monomer is accomodated, the connecting rod on the third test tube rack monomer is movably arranged in the placing hole of the first test tube rack monomer and the second test tube rack monomer.

3. The combination tube rack of claim 2 wherein: The placing plate is detachably connected to the connecting rod.

4. The combination tube rack of claim 2 wherein: The limiting device comprises a limiting block and a plurality of threaded segments arranged at intervals on the connecting rod, the placing plate is arranged on the limiting block, the limiting block is movably arranged on the connecting rod, and the connecting rod is threadedly connected at the threaded segments.

5. The combination tube rack of claim 4 wherein: At least one locking block is arranged on each connecting rod of each test tube rack monomer, the locking block is movably arranged on the connecting rod, and the connecting rod is threadedly connected at the threaded segments, and the locking block and the limiting block are arranged on opposite sides of the placing plate.

6. The combination tube rack of claim 1 wherein: A plurality of placing positions are arranged on the top of the bottom plate of each test tube rack monomer, the placing positions are used for receiving the bottom of the test tube, and the placing positions and the placing holes of each test tube rack monomer are one-to-one opposite.

7. The combination tube rack of claim 6 wherein: The top of the bottom plate of the first test tube rack monomer and the second test tube rack monomer is provided with a sliding groove, the sliding groove is not communicated with the placing position, the bottom of the bottom plate of the second test tube rack monomer and the third test tube rack monomer is provided with a sliding block, the sliding block is adapted to the sliding groove, the second test tube rack monomer is slidably connected with the first test tube rack monomer by sliding the sliding block on the second test tube rack monomer on the sliding groove of the first test tube rack monomer, and the third test tube rack monomer is slidably connected with the second test tube rack monomer by sliding the sliding block on the third test tube rack monomer on the sliding groove of the second test tube rack monomer.

8. The combination tube rack of claim 1 wherein: The bottom of the bottom plate of the second and third test tube rack monomers is provided with a supporting leg, the supporting leg of the second test tube rack monomer is rotatably installed at the end of the second test tube rack monomer away from the first test tube rack monomer when the second test tube rack monomer is slid open from the first test tube rack monomer, the supporting leg of the third test tube rack monomer is rotatably installed at the end of the third test tube rack monomer away from the second test tube rack monomer when the third test tube rack monomer is slid open from the second test tube rack monomer, the supporting leg is flipped to be perpendicular or parallel to the bottom plate of the test tube rack monomer by rotating relative to the test tube rack monomer, and the side of the supporting leg away from the test tube rack monomer is flush with the bottom surface of the bottom plate of the first test tube rack monomer when the supporting leg is rotated to be perpendicular to the bottom plate of the test tube rack monomer.

9. The combination tube rack of claim 8, wherein: The bottom plate of the second and third test tube rack monomers is provided with a placing groove, and the supporting leg is accommodated in the placing groove when the supporting leg is flipped to be parallel to the bottom plate of the test tube rack monomer.

10. The combination tube rack of claim 1, wherein: Four connecting rods are arranged on each bottom plate, and the four connecting rods are respectively installed at the four corners of the bottom plate.

Images