Assembly type test tube rack

Abstract

The utility model relates to the technical field of biological medicine, and particularly discloses an assembly type test tube rack which comprises limiting columns and a bottom plate, the limiting columns are vertically installed at the four vertexes of the bottom plate respectively, each limiting column comprises a plurality of detachable first connecting columns, and the first connecting columns are sequentially connected to form a vertical limiting column; a plurality of mounting plates and bearing plates are horizontally arranged between the limiting columns, the mounting plates and the bearing plates are arranged up and down, a plurality of first through holes allowing test tubes to vertically penetrate through are formed in the surfaces of the mounting plates in a penetrating mode, second through holes and third through holes are formed in the four vertexes of the mounting plates and the bearing plates in a penetrating mode respectively, and detachable supporting rings are clamped to the outer walls of the first connecting columns. And the support ring is an incompletely circular ring. According to the scheme, the problem that the test tube fixing height cannot be adjusted during water bath of an existing test tube bracket can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of biomedicine, in particular to an assembled test tube rack. Background Art

[0002] Test tubes are commonly used instruments in chemical laboratories. They can be used as containers for dissolving gas, liquid or solid solutes or as reaction containers for small amounts of reagents. Water bath heating refers to transferring heat to the container that needs to be heated by heating water. The conditions are mild and controllable. It is a commonly used treatment method in the current chemical field to promote the dissolution of substances or promote chemical reactions. In the process of water bath heating test tubes, the test tubes need to be fixed in the water bath heating device by a fixing device. In the prior art, it is usually necessary to prevent a bracket in the water bath box, and the test tubes are placed on the bracket.

[0003] The Chinese utility model patent with the announcement number CN214439296U discloses a test tube stand for a water bath, including a horizontal plate, a leg, a ratchet, a test tube base, a claw, a connecting rod, a slider and a ratchet block; a series of test tube holes are provided on the horizontal plate, and three vertically placed ratchet bars are provided in each test tube hole; the slider is located on the outside of the ratchet; a claw and a connecting rod are provided above the slider, and a ratchet block is provided in the slider cavity; the ratchet block is provided with two ratchet claws extending forward. Compared with the prior art, it has the characteristics of being able to conveniently and quickly install and fix test tubes. It can quickly fix test tubes and adapt to test tubes of different diameters through the provision of ratchets.

[0004] The drawback of the above scheme is that the height of the lower leg body is fixed and cannot be adjusted. When the water level in the water bath is too low, the test tube may not be immersed in water, thereby affecting the stability of the sample temperature and causing adverse effects on the experimental results. Utility Model Content

[0005] The utility model provides an assembled test tube rack to solve the problem that the existing test tube rack cannot adjust the fixed height of the test tube when the test tube is in a water bath.

[0006] To solve the above problems, the technical solution adopted by the utility model is as follows: an assembled test tube rack, comprising a limit column and a base plate, the limit columns are vertically installed at the four vertices of the base plate respectively, the limit column comprises a plurality of detachable first connecting columns, which are connected in sequence by the first connecting columns to form a vertical limit column, a plurality of mounting plates and receiving plates are horizontally arranged between the limit columns, the mounting plate and the receiving plate are arranged one above the other, a plurality of first through holes are penetrated on the surface of the mounting plate for vertical passage of the test tube, the four vertices of the mounting plate and the receiving plate are respectively penetrated by second through holes and third through holes, a detachable support ring is clamped on the outer wall of the first connecting column, and the support ring is an incomplete circular ring.

[0007] The basic principle of this solution is: by connecting multiple detachable first connecting columns to each other to form a whole vertical limiting column, different test tube rack heights can be designed according to the heights and number of layers of the test tubes, and the mounting plate is positioned at a certain height of the limiting column through a support ring, so that the test tube can be fixed on the mounting plate at a certain height, and the bottom of the test tube is lifted and connected by the receiving plate to prevent the bottom of the test tube from touching the bottom.

[0008] The beneficial effects of this solution are as follows: the height of the lower leg of the existing water bath test tube rack is fixed and the height cannot be adjusted. When the water level in the water bath is too low, the test tube may not be immersed in the water, thereby affecting the stability of the sample temperature and causing adverse effects on the experimental results. This solution provides an assembled limit column, so that the height of the entire fixed frame can be adjusted, and the detachable structure of the support ring is used to fix the support plate with the test tube fixed on the limit column, thereby ensuring that test tubes of various height specifications can be water bathed at the same time, thereby increasing the optional range of water bath test equipment.

[0009] Furthermore, the upper end of the first connecting column is a threaded portion, and a thread groove is formed inside the lower end of the first connecting column, and the thread groove matches the threaded portion. A plurality of first connecting columns can be connected in sequence through the thread groove and the threaded portion, and the inner diameter of the support ring fits the outer diameter of the threaded portion. The connection and assembly between the first connecting columns are achieved through the threaded structure, and the bottom wall of the support ring can be supported by the top wall of the maximum outer diameter of the first connecting column.

[0010] Furthermore, a magnet is embedded on the inner wall of the support ring, and the magnet has a different magnetic pole from the outer wall of the first connecting column, thereby utilizing magnetism to increase the firmness of the support ring.

[0011] Furthermore, a clamping ring is arranged in the first through hole, the clamping ring is a rubber ring, and the cross section of the clamping ring is semicircular, so as to clamp the outer wall of the test tube tightly, thereby preventing the test tube from shaking due to a gap between the test tube and the first through hole.

[0012] Furthermore, the four vertices of the bottom plate are respectively provided with slots opening upward, and the lower ends of the first connecting columns can be vertically inserted into the slots, so as to ensure that the entire test tube rack structure is in a rectangular block shape.

[0013] Furthermore, a top plate is horizontally arranged at the top of the limiting column, and four vertices of the top plate are respectively provided with vertical fourth through holes, the inner diameter of the fourth through hole is smaller than the maximum outer diameter of the first connecting column, and a nut is threadedly connected to the top of the limiting column. The four limiting columns are connected as one through the top plate, so that the stability of the overall structure of the frame is improved, and the frame can be directly used for oscillating water bath equipment.

[0014] Furthermore, grooves with openings facing upward are respectively formed on the top surface of the receiving plate corresponding to the first through hole, and rubber pads adapted to the grooves are installed in the grooves. The rubber pads are used to support the bottom end of the test tube and increase the friction between the bottom wall of the test tube, so as to fix it firmly and prevent the bottom wall of the test tube from being bumped and worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of a test tube holder in an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the assembly of the limiting column in the embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of a single first connecting column in an embodiment of the utility model;

[0019] Figure 5 It is a schematic diagram of the assembly of two first connecting columns in an embodiment of the utility model. DETAILED DESCRIPTION

[0020] The following is further described in detail through specific implementation methods:

[0021] The figure marks in the drawings of the specification include: top plate 1, bottom plate 2, slot 3, limit column 4, first connecting column 5, threaded portion 6, threaded groove 7, mounting plate 8, receiving plate 9, support ring 10, snap ring 11, rubber pad 12, first through hole 13, second through hole 14, third through hole 15, test tube 16, nut 17.

[0022] The embodiment is basically as shown in the attached Figures 1 to 5 As shown:

[0023] An assembled test tube rack 16 includes a limit column 4, the number of the limit columns 4 is four, a mounting plate 8 is clamped between the limit columns 4, a plurality of vertical first through holes 13 are spaced apart on the mounting plate 8, a clamp ring 11 is installed on the inner wall of the first through hole 13, and the clamp ring 11 is coaxially installed with the first through hole 13, such as Figure 2 As shown, the longitudinal section of the clamping ring 11 is hemispherical, and the clamping ring 11 is a rubber ring. The test tube 16 can be vertically clamped on the mounting plate 8 through the clamping ring 11. When the test tube 16 passes through the first through hole 13 from top to bottom, the side wall of the clamping ring 11 is squeezed, thereby providing a reverse radial elastic force to the side wall of the test tube 16 to clamp the test tube 16.

[0024] At the four vertices of the mounting plate 8, second through holes 14 are respectively provided for the limit columns 4 to pass through, so that multiple mounting plates 8 can be horizontally passed through the four limit columns 4. A receiving plate 9 is horizontally arranged below the mounting plate 8, and the receiving plate 9 corresponds to the size of the mounting plate 8, and third through holes 15 are also provided at the four vertices of the mounting plate 8 for the limit columns 4 to pass through. On the top surface of the receiving plate 9, corresponding to the first through holes 13, grooves opening upward are respectively provided, and rubber pads 12 matching the size of the grooves are fixed in the grooves, and the rubber pads 12 are in contact with the lower end of the test tube 16, thereby increasing the friction with the test tube 16 and preventing the test tube 16 from shifting.

[0025] As attached Figures 3-5 As shown, the limiting column 4 includes a plurality of first connecting columns 5, which are in the form of a multi-stage column base as a whole. A threaded portion 6 is provided at the upper end of the first connecting column 5, and the outer diameter of the threaded portion 6 is smaller than the outer diameter of the first connecting column 5. A threaded groove 7 is opened inside the bottom end of the first connecting column 5, and the threaded groove 7 matches the size of the threaded portion 6, and the threaded groove 7 can be used for threaded connection of the threaded portion 6.

[0026] In this embodiment, each limiting column 4 includes six first connecting columns 5, which are connected in sequence from top to bottom. A horizontal top plate 1 is also installed on the top first connecting column 5. A fourth through hole is opened on the horizontal top plate 1 corresponding to the first connecting column 5. When the horizontal top plate 1 passes through the first connecting column 5, the top of the first connecting column 5 is threadedly connected to the nut 17, thereby reinforcing the top of the entire test tube 16 rack.

[0027] In this embodiment, a horizontal base plate 2 is installed below the lowermost limiting column 4. The horizontal base plate 2 is in the shape of a square frame, and upward slots 3 are provided at the four vertices of the base plate 2, so that the first connecting columns 5 at the lower ends of the four limiting columns 4 can be respectively inserted into the slots 3, thereby connecting the entire test tube rack 16 as a whole.

[0028] Horizontal support rings 10 are respectively clamped below the mounting plate 8 and the receiving plate 9 and outside the limiting column 4. The support ring 10 is in an incomplete circular ring shape, and has an opening on the surface of the support ring 10. The inner diameter of the support ring 10 fits with the outer diameter of the threaded portion 6. Since the inner diameters of the first through hole 13 and the second through hole 14 fit with the outer diameter of the first connecting column 5, that is, the inner diameter of the support ring 10 is smaller than the inner diameters of the first through hole 13 and the second through hole 14, when the support ring 10 is located below the first through hole 13 or the second through hole 14, it can limit and support the mounting plate 8 and the receiving plate 9, thereby limiting the horizontal mounting plate 8 and the receiving plate 9 on the limiting column 4.

[0029] In order to further improve the firmness of the mounting plate 8 and the receiving plate 9, the height of the threaded portion 6 can be set to the thickness of a mounting plate 8 plus two support rings 10, so that a support ring 10 can be fixed on the upper and lower surfaces of the mounting plate 8 respectively, thereby clamping the two sides of the mounting plate 8.

[0030] In order to improve the firmness of the support ring 10 fixed on the outer wall of the first limiting column 4, a magnet is embedded on the inner wall of the support ring 10, and the magnet has a different magnetic pole from the outer wall of the first connecting column 5. The positioning firmness of the support ring 10 on the limiting column 4 is improved by magnetism.

[0031] The specific implementation process is as follows:

[0032] The number of first connecting columns 5 is selected according to the height of the test tube 16 used, and the first connecting columns 5 are threadedly connected in sequence to form four limit columns 4 of the same length. The limit columns 4 are respectively placed in the slots 3 of the bottom plate 2, and the receiving plate 9 and the mounting plate 8 are sequentially inserted into the limit columns 4. The support rings 10 are respectively inserted into the upper and lower end surfaces of the mounting plate 8 and the outer side of the threaded portion 6, thereby completing the positioning of the mounting plate 8 and the bearing plate, and then the test tubes 16 are respectively inserted into the first through holes 13, and the bottom ends of the test tubes 16 touch the rubber plate to complete the assembly of the single-layer test tube 16 rack. After all the test tubes 16 are assembled as needed, the top plate 1 is installed on the topmost first limit column 4, and the nut 17 is used to sleeve the threaded portion 6 of the top first connecting column 5, so that the top plate 1 is fixed. The entire test tube 16 rack is in a square shape, and the test tube 16 rack can be moved to an external test device or desktop.

[0033] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An assembled test tube rack, characterized in that: It includes a limit column and a base plate, wherein the limit columns are vertically installed at the four vertices of the base plate respectively, and the limit column includes a plurality of detachable first connecting columns, which are connected in sequence through the first connecting columns to form a vertical limit column, and a plurality of mounting plates and receiving plates are horizontally arranged between the limit columns, and the mounting plate and the receiving plate are arranged one above the other, and a plurality of first through holes for vertically passing test tubes are penetrated on the surface of the mounting plate, and a second through hole and a third through hole are penetrated at the four vertices of the mounting plate and the receiving plate respectively, and a detachable support ring is clamped on the outer wall of the first connecting column, and the support ring is an incomplete circular ring.

2. The assembled test tube rack according to claim 1, characterized in that: The upper end of the first connecting column is a threaded portion, and a thread groove is opened inside the lower end of the first connecting column. The thread groove matches the threaded portion. Several first connecting columns can be connected in sequence through the thread groove and the threaded portion, and the inner diameter of the support ring fits the outer diameter of the threaded portion.

3. The assembled test tube rack according to claim 2, characterized in that: A magnet is embedded on the inner wall of the support ring, and the magnetic pole of the magnet is different from that of the outer wall of the first connecting column.

4. The assembled test tube rack according to claim 3, characterized in that: A clamping ring is arranged in the first through hole, the clamping ring is a rubber ring, and the cross section of the clamping ring is semicircular.

5. The assembled test tube rack according to claim 4, characterized in that: The four vertices of the bottom plate are respectively provided with card slots opening upward, and the lower ends of the first connecting columns can be vertically inserted into the card slots.

6. The assembled test tube rack according to claim 5, characterized in that: A top plate is horizontally arranged at the top of the limiting column, and four vertices of the top plate are respectively provided with vertical fourth through holes, the inner diameter of the fourth through hole is smaller than the maximum outer diameter of the first connecting column, and a nut is threadedly connected to the top of the limiting column.

7. The assembled test tube rack according to claim 6, characterized in that: Grooves opening upward are respectively formed on the top surface of the receiving plate at locations corresponding to the first through holes, and rubber pads matching the grooves are installed in the grooves.

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