Test tube rack for preparing acrylic acid heat-conducting electromagnetic wave absorbing material

Abstract

The invention discloses a test tube rack for preparing an acrylic acid heat-conducting electromagnetic wave absorbing material, and particularly relates to the technical field of test tube racks, the test tube rack comprises a placing rack, a plurality of test tube bodies and a plurality of centering rack cylinders, and the centering rack cylinders are used for placing the test tube bodies in the placing rack; the bottom support assembly is used for protecting the bottom of the test tube body in the placing frame and ensuring stable preparation of a material in the test tube body, and the bottom support assembly comprises a fixing frame fixedly connected to the interior of the placing frame and a bottom support cylinder connected to the outer part of the test tube body in a sleeving manner; through the arrangement of the bottom support assembly, the test tube body can be protected in the placement rack, it is ensured that the test tube body is stably placed in the placement rack, and the situation that the bottom of the test tube body is directly exposed on the hard surface of the placement rack, and the test tube is prone to being broken or cracked due to collision, friction or uneven pressure is avoided; safe placement of the test tube body by the placement rack is facilitated, so that the experiment process is promoted, and preparation of materials in the test tube body is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of test tube racks, in particular to a test tube rack for preparing acrylic heat-conducting electromagnetic wave absorbing materials. Background Art

[0002] Acrylic acid is an organic compound. Due to the presence of carbon-carbon double bonds and carboxyl groups in the acrylic acid molecular structure, the chemical properties of acrylic acid are very active and can undergo a variety of chemical reactions such as reduction reaction, esterification reaction, and addition reaction. Therefore, specific fillers are added to the acrylic acid matrix to give the material good thermal conductivity and electromagnetic wave absorption capabilities. Since test tubes or other reaction containers are needed during the preparation of the material, it is more convenient to accurately control the reaction conditions. Since different reaction materials need to be poured into the container, a test tube rack is needed to stably fix the test tube or other reaction container to prevent movement during heating or stirring. The test tube rack is used to prevent the test tube from moving or tipping over, thereby ensuring the smooth progress of the experiment; currently, containers of different sizes need to be used for preparation in the material preparation process. Therefore, a regulating rack in the test tube rack is required to be adjusted according to containers of different sizes, so as to stably place containers of different sizes on the test tube rack; since there are many containers on the test tube rack, and in order to accurately control the reaction conditions of the materials, the containers are suspended on the test tube rack. Therefore, the bottom of the test tube is directly exposed to the hard surface of the test tube rack, which is easy to cause the test tube to break or crack due to collision, friction or uneven pressure, affecting the experimental process and even causing safety hazards, reducing the safe placement of the test tube by the test tube rack. Summary of the invention

[0003] The purpose of the present invention is to provide a test tube rack for preparing acrylic thermal conductive electromagnetic wave absorbing materials to solve the above-mentioned shortcomings in the technology.

[0004] In order to achieve the above-mentioned object, the present invention provides the following technical scheme: a test tube rack for preparing acrylic thermal conductive electromagnetic wave absorbing materials, comprising a placement rack, a plurality of test tube bodies and a plurality of centering rack barrels, wherein the centering rack barrels are used to place the test tube bodies in the placement rack; The bottom support assembly is used to protect the bottom of the test tube body in the placement rack to ensure stable preparation of the material in the test tube body, the bottom support assembly includes a fixed frame fixedly connected to the placement rack and a bottom support cylinder sleeved on the outside of the test tube body, the fixed frame is fixedly connected to a bracket on one side close to the bottom support cylinder, the outside of the bottom support cylinder is fixedly connected to a magnetic suction cylinder, a magnetic suction slide is magnetically attracted in the magnetic suction cylinder, a centering hole for the magnetic suction slide to move up and down is provided in the middle part of the interior of the bracket, a removal assembly for driving the magnetic suction slide and the magnetic suction cylinder to move is provided between the fixed frame and the bracket, and the removal assembly is used to move the bottom support cylinder up, down, left and right on the outside of the bracket, a limiting sleeve is rotatably connected to the centering frame cylinder, a limiting assembly cooperating with the limiting sleeve is provided in the centering frame cylinder, and the limiting assembly is used to accurately place test tube bodies of different sizes in the limit position The cam is provided with a rotation assembly for connection between the sleeve and the bottom support tube, and the rotation assembly is used to drive the limit sleeve to rotate in the centering frame tube and shake and mix the material in the test tube body; and the top end of the magnetic slide column is inserted into the bottom end of the magnetic tube, and the top end of the magnetic slide column is located inside the magnetic tube. At this time, the magnetic connection between the magnetic slide column and the magnetic tube is beneficial to maintain the stability of the bottom support tube on the magnetic tube, so that the bottom support tube and the bottom of the test tube body are stably wrapped, and the bracket is in a frame-shaped structure, so that the top and the middle of the bracket are hollow, ensuring the good operation of the remaining structures in the bracket; at the same time, the fixed frame is in an L-shaped structure, so that the fixed frame is installed inside the placement frame, and there is a distance between the fixed frame and the placement frame, ensuring the stable installation of the remaining structures on the fixed frame and avoiding mutual interference.

[0005] Preferably, the moving assembly includes a mounting base fixedly connected to an end of the magnetic suction slide column away from the magnetic suction cylinder, a telescopic motor fixedly connected to a side of the fixed frame close to the placement frame, and a movable plate fixedly connected to the telescopic end of the telescopic motor, and the telescopic motor is used to drive the movable plate to move left and right along one side of the fixed frame, and a connecting shaft column is installed on one side of the movable plate, and a swing arm is movably connected between the connecting shaft column and the mounting base; and there is a distance between the movable plate and the bracket, and the distance between them is convenient for the up and down movement of the magnetic suction slide column to avoid mutual interference between the bottom of the magnetic suction slide column and the top of the movable plate, so that the magnetic suction slide column can move stably along one side of the fixed frame. In this process, the moving assembly is used to realize the up and down movement between the bottom support cylinder and the test tube body, which is convenient for the rapid separation between the bottom support cylinder and the test tube body, and is convenient for the subsequent processing of the material in the test tube body, and the remaining test tube bodies in the placement rack can still be protected by the bottom support cylinder when they are not processed, thereby ensuring the safety of the material in the test tube body during preparation.

[0006] Preferably, the removal assembly also includes a first contact plate fixedly connected to the side of the magnetic sliding column close to the magnetic suction cylinder, a second contact plate slidably connected to the bracket, and a resistance groove opened in the middle of the interior of the bracket and communicating with the interior of the centering hole for the magnetic suction cylinder to resist, and the magnetic suction cylinder is slidably connected in the resistance groove and the bracket, and a sliding groove connected to the interior of the centering hole for the first contact plate to move is opened in the bracket, one end of the second contact plate away from the first contact plate is fixedly connected to the centering column, and one end of the centering column passes through the bracket, a first spring is fixedly connected between the second contact plate and the bracket, and the first spring is sleeved on the centering column. Externally, a short-range component for cooperating with the second contact plate is provided between the bracket and the movable plate, so as to stably fit the magnetic suction cylinder and the second contact plate, and ensure that the magnetic suction cylinder is stably moved to the desired position in the bracket; and the second contact plate and the first contact plate are matched at an inclination, so that the first contact plate moves upward or downward to contact with one side of the second contact plate and push the second contact plate to move in the bracket, and, due to the setting of the inclination of the second contact plate, after the second contact plate contacts with the magnetic suction cylinder, the second contact plate and the magnetic suction cylinder are in point contact, and there is a distance between the second contact plate and the magnetic suction cylinder. , so that the top of the first contact plate is inserted into this distance, the first contact plate and the second contact plate are matched at an inclination, and mutual interference between them is avoided, which is conducive to the overall stable operation; in this process, the second contact plate can cooperate with the magnetic suction cylinder moving up and down, so that the magnetic suction cylinder falls into the contact groove and separates between the magnetic suction sliding column, and then the second contact plate pushes the magnetic suction cylinder to move out of the contact groove and move to the inside of the bracket under the elastic action of the first spring, so that the bottom bracket can move left and right in the bracket, so that there is a distance between the bottom bracket and the test tube body, so that the internal material of the test tube body The material can maintain a good fit with the heating equipment during heating preparation, and the up, down, left and right movement of the bottom support tube can avoid hard contact between the heating equipment and the bottom of the test tube body, which may cause collision and damage to the bottom of the test tube body, thereby ensuring stable preparation of the material inside the test tube body; in addition, the centering column is used to limit the expansion and contraction of the first spring in the bracket, thereby avoiding bending of the first spring during expansion and contraction, ensuring good cooperation between the second contact plate, the first contact plate and the magnetic suction tube, so that the magnetic suction tube can move automatically when moving, reducing manual intervention and improving the flexibility of the device.

[0007] Preferably, the short-range component includes a column fixedly connected to one side of the moving plate and a resistance ring slidably connected to the bracket and cooperating with the magnetic suction cylinder, one side of the bracket is provided with a guide groove communicated with the interior thereof, a guide block is slidably connected in the guide groove, and the guide block is used to drive the resistance ring to move, a guide frame for connection is provided between the column and the bracket, one end of the guide block extends to the outside of the guide groove and is fixed with a short-range column, the top of the guide frame is provided with a short-range groove for the movement of the short-range column, a reverse thrust assembly cooperating with the guide block is provided in the guide groove, and the reverse thrust assembly is used to push the magnetic suction cylinder to move and reset; and the resistance ring and the magnetic suction cylinder contact each other under the push of the second contact plate, and then the resistance ring is used to guide the movement of the magnetic suction cylinder in the bracket, so that the magnetic suction cylinder can be stably guided and moved in the bracket, which is conducive to the stable movement of the magnetic suction cylinder to the desired position in the bracket.

[0008] Preferably, the reverse thrust assembly includes a reverse thrust block slidably connected in the guide groove and in contact with the guide block, and an arc frame fixedly connected to one end of the reverse thrust block, and the arc frame is located in the bracket and is in contact with the magnetic suction cylinder, one side of the bracket is fixedly connected with a fixing plate, one end of the reverse thrust block extends to the outside of the guide groove and is fixed with a reverse thrust column, and one end of the reverse thrust column passes through the fixing plate, a second spring is commonly connected between the reverse thrust block and the fixing plate, and the second spring is sleeved on the outside of the reverse thrust column; and a through groove for a resistance ring to pass through is provided inside the arc frame, so that the resistance ring and the arc frame cooperate with each other, and can exert a secondary push on the magnetic suction cylinder in the bracket, and can ensure that the magnetic suction cylinder is in the bracket. The inner part is precisely pushed into the inside of the resistance groove to ensure the stable connection between the magnetic suction cylinder and the magnetic suction sliding column; at the same time, the second spring can cooperate with the first spring, so that when the first spring pushes the magnetic suction cylinder to move, the arc frame contacts with the magnetic suction cylinder under the push of the elastic force of the second spring, and generates a reaction force on the magnetic suction cylinder under the push of the second contact plate, so that the magnetic suction cylinder can move stably in the bracket, thereby being able to automatically move and reset the magnetic suction cylinder in the bracket, and being able to freely adjust the position of the magnetic suction cylinder as needed, so that the bottom bracket can independently choose to protect the required test tube body, thereby ensuring the safe protection of the test tube body in the placement rack.

[0009] Preferably, the limiting component includes a moving groove provided in the limiting sleeve, a plurality of contact rings are slidably connected in the moving groove, one side of the plurality of contact rings are in contact with the outside of the test tube body, one side of the contact ring is provided with two symmetrical guide grooves, two symmetrical positioning posts are fixedly connected in the moving groove, and the two positioning posts are inserted into the two guide grooves, and two third springs are commonly connected between the two guide grooves and the two positioning posts; and the limiting sleeve is located above the bottom supporting tube, so that the bottom supporting tube and the limiting sleeve maintain two-point restrictions on the test tube body in the placement rack, so that the test tube body remains upright in the placement rack, It is convenient for the experimenter to observe the reaction process and record the data at any time, which is helpful for subsequent analysis and optimized preparation; and under the action of the third spring, the contact ring can increase the elastic adaptive force between the test tube body and the test tube body, so it can adapt to test tube bodies of different shapes and sizes, thereby improving the versatility of the experimental equipment; in addition, the elastic contact between the contact ring and the test tube body makes it easier to adjust the relative position between the limiting sleeve and the test tube body, which is convenient for the experimenter to change the reaction conditions or perform other operations as needed, and each time the test tube body is adjusted in the limiting sleeve, it can reduce wear and scratches, thereby extending the service life of the test tube and maintaining its integrity.

[0010] Preferably, several of the contact rings are arranged in a ring array in the limiting sleeve, and the top of the contact ring is an arc-shaped structure; and the top of the contact ring is matched with the bottom of the test tube body in an arc, so as to avoid damage caused by excessive squeezing between the contact ring and the bottom of the test tube body, ensure that the test tube body can be stably placed inside the third spring, and ensure the safe preparation of the material inside the test tube body.

[0011] Preferably, the rotating assembly includes a connecting plate fixedly connected to one end of the centering column and a gear ring sleeved on the top of the limiting sleeve, a shift groove for the connecting plate to move is provided on one side of the placement rack, one end of the connecting plate passes through the shift groove and is fixed with a rack, and the rack is slidably connected to the placement rack, and an embedding groove for the gear ring and the rack to mesh is provided on the side of the placement rack close to the shift groove; it is convenient to cooperate with the user and facilitate the mixing of materials, so that the reactants can be mixed more evenly in the test tube body, the material diffusion between the reactants is promoted, and the absorber and the thermal conductive filler are better in contact with the matrix material, thereby improving the thermal conductivity and wave absorption performance of the composite material, shortening the preparation reaction time of the material in the test tube body, and improving the overall efficiency of the experiment.

[0012] In the above technical solution, the technical effects and advantages provided by the present invention are: By setting up the bottom support assembly, the test tube body can be protected in the placement rack, ensuring that the test tube body is stably placed in the placement rack, avoiding the bottom of the test tube body being directly exposed to the hard surface of the placement rack, which may easily cause the test tube to rupture or crack due to collision, friction or uneven pressure. This is beneficial to the safe placement of the test tube body on the placement rack, thereby improving the experimental progress and facilitating the preparation of materials in the test tube body.

[0013] By moving the components, the bottom support tube and the test tube body apart, the bottom support tube can be moved up and down and left and right at the bottom of the test tube body. Therefore, a suitable distance is maintained between the bottom support tube and the test tube body during movement, so that the material inside the test tube body can maintain a good fit with the heating equipment during heating preparation. In addition, the up, down, left and right movement of the bottom support tube can avoid hard contact between the heating equipment and the bottom of the test tube body, resulting in collision and damage to the bottom of the test tube body, thereby ensuring stable preparation of the material inside the test tube body.

[0014] By setting up the short-range component, the magnetic suction cylinder and the moving component, the magnetic suction cylinder can be guided to move in the bracket, so that the magnetic suction cylinder can be stably guided to move in the bracket, which is conducive to the stable movement of the magnetic suction cylinder in the bracket to the desired position.

[0015] By arranging the reverse thrust assembly, the magnetic suction cylinder, the bottom support cylinder, the bracket and the removal assembly, the magnetic suction cylinder can be moved and reset in the bracket, which can ensure the consistency and accuracy of each operation of the bottom support cylinder and the test tube body, and avoid the occurrence of uneven contact or position displacement between the bottom of the test tube body and the bottom support cylinder, thereby saving the time and energy required for adjustment between the bottom support cylinder and the test tube body, improving the safety of placing the test tube body in the placement rack, and further improving the overall efficiency of the experiment.

[0016] By setting the bottom support tube, the limiting sleeve and the test tube body, the test tube body can be restricted at two points in the placement rack, so that the test tube body can remain upright in the placement rack, making it convenient for experimenters to observe the reaction progress and record data at any time, which is helpful for subsequent analysis and optimized preparation.

[0017] By setting the limiting component, the limiting sleeve and the test tube body, the elastic adaptive force between the limiting component and the test tube body can be increased, so that it can adapt to test tube bodies of different shapes and sizes, which is beneficial to the flexibility of placing the test tube body in the placement rack and improves the versatility of the experimental equipment.

[0018] By arranging the rotating assembly, the centering column, the limiting sleeve and the test tube body, the rotating assembly drives the limiting sleeve to move in a circular motion under the horizontal movement of the centering column, which is convenient for coordination with the user and the mixing of materials, and can make the reactants more evenly mixed in the test tube body, promote the diffusion of substances between the reactants, shorten the preparation reaction time of the material in the test tube body, and improve the overall efficiency of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the assembly of the magnetic suction slide column and the magnetic suction cylinder of the present invention; Figure 3 It is a structural schematic diagram of the magnetic sliding column of the present invention sliding into the centering hole; Figure 4 is a partial cross-sectional view of the bracket of the present invention; Figure 5 It is a structural schematic diagram of the magnetic sliding column of the present invention; Figure 6 An exploded view of the short-range component of the present invention; Figure 7 An exploded view of the thrust reverser assembly of the present invention; Figure 8 It is a schematic diagram of the structure of the limiting component of the present invention; Fig. 9 For the present invention Figure 8 A partial enlarged view of the middle A; Fig.10 It is a structural schematic diagram of the rotating assembly of the present invention; Fig.11 It is a schematic diagram of the structure of the meshing of the rack and the gear ring of the present invention.

[0021] Description of reference numerals: 1. Placement rack; 11. Test tube body; 12. Centering rack cylinder; 2. Bottom bracket assembly; 21. Bottom bracket cylinder; 22. Fixing frame; 23. Bracket; 24. Magnetic sliding column; 25. Magnetic suction cylinder; 26. Centering hole; 27. Limit sleeve; 3. Remove the assembly; 31. Resistance groove; 32. First contact plate; 33. Second contact plate; 34. First spring; 35. Centering column; 36. Mounting seat; 37. Swing arm; 38. Connecting shaft column; 39. Moving plate; 301. Telescopic motor; 302. Slide groove; 4. short-range assembly; 41. column; 42. guide groove; 43. guide frame; 44. short-range column; 45. guide block; 46. short-range groove; 47. abutment ring; 5. reverse thrust assembly; 51. reverse thrust block; 52. second spring; 53. reverse thrust column; 54. fixing plate; 55. arc frame; 6. Restriction assembly; 61. Third spring; 62. Moving groove; 63. Contact ring; 64. Positioning column; 65. Guide groove; 7. Rotating assembly; 71. Connecting plate; 72. Rack; 73. Gear ring; 74. Shifting groove; 75. Embedded groove. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] The present invention provides Figure 1-Figure 11 The test tube rack for preparing acrylic heat-conductive electromagnetic wave absorbing materials shown in the figure comprises a placement rack 1, a plurality of test tube bodies 11 and a plurality of centering rack barrels 12, wherein the centering rack barrels 12 are used to place the test tube bodies 11 in the placement rack 1; The bottom support assembly 2 is used to protect the bottom of the test tube body 11 in the placement rack 1 to ensure stable preparation of the material in the test tube body 11. The bottom support assembly 2 includes a fixed frame 22 fixedly connected to the placement rack 1 and a bottom support tube 21 sleeved on the outside of the test tube body 11. The fixed frame 22 is fixedly connected to a bracket 23 on one side close to the bottom support tube 21. The outside of the bottom support tube 21 is fixedly connected to a magnetic suction cylinder 25. A magnetic suction slide 24 is magnetically attracted in the magnetic suction cylinder 25. A centering hole 26 for the magnetic suction slide 24 to move up and down is opened in the middle of the inner part of the bracket 23. A centering hole 26 for driving the magnetic suction slide 24 and the magnetic suction slide 24 are provided between the fixed frame 22 and the bracket 23. The magnetic suction cylinder 25 moves the removal component 3, and the removal component 3 is used to move the bottom support cylinder 21 up, down, left and right outside the bracket 23. The limiting sleeve 27 is rotatably connected in the centering frame cylinder 12. The centering frame cylinder 12 is provided with a limiting component 6 that cooperates with the limiting sleeve 27, and the limiting component 6 is used to accurately place the test tube bodies 11 of different sizes in the limiting sleeve 27 and the bottom support cylinder 21. A rotating component 7 for connection is provided between the removal component 3 and the limiting sleeve 27, and the rotating component 7 is used to drive the limiting sleeve 27 to rotate in the centering frame cylinder 12, and shake and mix the materials in the test tube body 11; The limiting component 6 includes a moving groove 62 opened in the limiting sleeve 27, and a plurality of contact rings 63 are slidably connected in the moving groove 62. One side of the plurality of contact rings 63 is in contact with the outside of the test tube body 11, and one side of the contact ring 63 is provided with two symmetrical guide grooves 65. Two symmetrical positioning columns 64 are fixedly connected in the moving groove 62, and the two positioning columns 64 are inserted into the two guide grooves 65. Two third springs 61 are commonly connected between the two guide grooves 65 and the two positioning columns 64; the plurality of contact rings 63 are arranged in a ring array in the limiting sleeve 27, and the top of the contact ring 63 is an arc-shaped structure.

[0024] refer to Figure 1-Figure 11 As shown, the removal assembly 3 includes a mounting seat 36 fixedly connected to the end of the magnetic suction slide column 24 away from the magnetic suction cylinder 25, a telescopic motor 301 fixedly connected to the side of the fixed frame 22 close to the placement frame 1, and a movable plate 39 fixedly connected to the telescopic end of the telescopic motor 301, and the telescopic motor 301 is used to drive the movable plate 39 to move left and right along one side of the fixed frame 22, and a connecting shaft column 38 is installed on one side of the movable plate 39, and the connecting shaft column 38 and the mounting seat 36 are movably connected together. The swing arm 37; the removal assembly 3 also includes a first contact plate 32 fixedly connected to the magnetic slide column 24 near the magnetic cylinder 25, a second contact plate 33 slidably connected to the bracket 23, and a resistance groove 31 opened in the middle of the bracket 23 and communicating with the centering hole 26 for the magnetic cylinder 25 to resist, and the magnetic cylinder 25 is slidably connected in the resistance groove 31 and the bracket 23, and a slide groove 302 is opened in the bracket 23 and communicates with the centering hole 26 for the first contact plate 32 to move. The end of the second contact plate 33 away from the first contact plate 32 is fixedly connected to a centering column 35, and one end of the centering column 35 passes through the bracket 23. A first spring 34 is fixedly connected between the second contact plate 33 and the bracket 23, and the first spring 34 is sleeved on the outside of the centering column 35. A short-range component 4 for cooperating with the second contact plate 33 is provided between the bracket 23 and the movable plate 39, which is used for the stable fit between the magnetic suction cylinder 25 and the second contact plate 33 to ensure that the magnetic suction cylinder 25 is in a stable fit. The bracket 23 stably moves to the desired position; the rotating assembly 7 includes a connecting plate 71 fixedly connected to one end of the centering column 35 and a toothed ring 73 sleeved on the top of the limiting sleeve 27, and a shifting groove 74 for the connecting plate 71 to move is provided on one side of the placement frame 1. One end of the connecting plate 71 passes through the shifting groove 74 and is fixed with a rack 72, and the rack 72 is slidably connected to the placement frame 1. A side of the placement frame 1 close to the shifting groove 74 is provided with an embedded groove 75 for the toothed ring 73 and the rack 72 to engage with.

[0025] refer to Figure 1-Figure 7As shown, the short-range component 4 includes a column 41 fixedly connected to one side of the moving plate 39 and a contact ring 47 slidably connected in the bracket 23 and matched with the magnetic suction cylinder 25. A guide groove 42 communicating with the interior of the bracket 23 is provided on one side of the bracket 23. A guide block 45 is slidably connected in the guide groove 42, and the guide block 45 is used to drive the contact ring 47 to move. A guide frame 43 for connection is provided between the column 41 and the bracket 23. One end of the guide block 45 extends to the outside of the guide groove 42 and is fixed with a short-range column 44. A short-range groove 46 for the short-range column 44 to move is provided at the top of the guide frame 43. A guide block 45 matching the guide block 45 is provided in the guide groove 42. The reverse thrust assembly 5 is used to push the magnetic suction cylinder 25 to move and reset; the reverse thrust assembly 5 includes a reverse thrust block 51 slidably connected in the guide groove 42 and in contact with the guide block 45, and an arc frame 55 fixedly connected to one end of the reverse thrust block 51, and the arc frame 55 is located in the bracket 23 and is in contact with the magnetic suction cylinder 25, one side of the bracket 23 is fixedly connected with a fixing plate 54, one end of the reverse thrust block 51 extends to the outside of the guide groove 42 and is fixed with a reverse thrust column 53, and one end of the reverse thrust column 53 passes through the fixing plate 54, and a second spring 52 is commonly connected between the reverse thrust block 51 and the fixing plate 54, and the second spring 52 is sleeved on the outside of the reverse thrust column 53.

[0026] Through the above technical solution: When in use; In the first step, when the test tube body 11 is inserted into the limiting sleeve 27 and the centering frame tube 12 and is located inside the placement rack 1, the bottom of the test tube body 11 is located inside the limiting sleeve 27 and contacts the top of the contact ring 63. At this time, the bottom of the test tube body 11 contacts the top of the contact ring 63 and moves downward, pushing the contact ring 63 to move into the moving groove 62, so that the third spring 61 is squeezed between the contact ring 63 and the positioning column 64, and the elastic force of the third spring 61 gives a thrust to one side of the contact ring 63, so that the contact ring 63 fits with the test tube body 11, ensuring that the test tube body 11 is stably moved downward in the limiting sleeve 27. The bottom of the test tube body 11 moves through the limiting sleeve 27 to the inside of the bottom support tube 21, so that the test tube body 11 is supported at two points inside the placement rack 1, and then the bottom support tube 21 protects the bottom of the placement rack 1 to avoid the bottom of the test tube body 11 being directly exposed to the hard surface of the placement rack 1, which is easy to cause the test tube to rupture or cracks due to collision, friction or uneven pressure. It is beneficial to the safe placement of the test tube body 11 by the placement rack 1, so that the test tube body 11 remains upright in the placement rack 1, which is convenient for the experimenter to observe the reaction progress and record data at any time, which is helpful for subsequent analysis and optimized preparation.

[0027] In the second step, when the material inside the test tube body 11 needs to be heated and prepared, and the bottom support tube 21 needs to be removed, the telescopic motor 301 is used to push the movable plate 39 to move along one side of the fixed frame 22, and then the movable plate 39 moves to drive the connecting shaft column 38 to move synchronously. At this time, the connecting shaft column 38 moves to drive one end of the swing arm 37 to move, and then the other end of the swing arm 37 pulls the mounting seat 36 and drives the mounting seat 36 to move downward along one side of the fixed frame 22. At this time, the magnetic sliding column 24 moves downward along the centering hole 26, so that the bottom support tube 21 moves downward along the outside of the test tube body 11, and the downward movement of the magnetic sliding column 24 drives the first contact plate 32 to move downward synchronously, and the first contact plate 32 and the second contact plate 33 contact and push each other. The second contact plate 33 is moved along the direction of the force in the bracket 23, so that the second contact plate 33 moves and drives the centering column 35 to move along the bracket 23, and the first spring 34 is squeezed between the second contact plate 33 and the bracket 23, so that the mounting seat 36 and the magnetic slide 24 are continuously moving downward, driving the first contact plate 32 to move downward along the slide groove 302, and the magnetic suction cylinder 25 moves to the inside of the abutment groove 31 and forms a conflict therewith, and then the magnetic attraction between the magnetic suction slide 24 and the magnetic suction cylinder 25 is disconnected, so that the magnetic suction cylinder 25 forms a separation state between the magnetic suction slide 24 in the abutment groove 31, and the top of the second contact plate 33 slides over the bottom of the second contact plate 33, so that the bottom bracket 21 and the test tube body 11 are separated up and down.

[0028] In the third step, when the magnetic cylinder 25 is separated from the magnetic sliding column 24 and the moving plate 39 is continuously moving, the moving plate 39 first drives the column 41 to move synchronously during the movement, so that the guide frame 43 moves along one side of the bracket 23, and the short-range groove 46 and the short-range column 44 keep moving, and the second contact plate 33 loses connection with the first contact plate 32, and then the first spring 34 itself elastically gives a thrust to one side of the second contact plate 33, which is used to push the magnetic cylinder 25 to slide out of the contact. The inside of the groove 31 moves toward the inside of the bracket 23, and the magnetic suction cylinder 25 moves to the inside of the bracket 23 and contacts one side of the contact ring 47, so that the magnetic suction cylinder 25 moves to push the contact ring 47 and drive the guide block 45 to move along the guide groove 42, and then the short-range column 44 moves along the short-range groove 46, and the contact ring 47 moves along the inside of the bracket 23 and passes through the arc frame 55, so that the guide block 45 contacts the reverse thrust block 51, and the elastic force of the second spring 52 itself gives the reverse thrust block 51 a push. The force generates a reaction force between the reverse push block 51 and the guide block 45, which is used to temporarily resist the moving guide block 45, and the guide frame 43 forms a conflict between the short-range groove 46 and the short-range column 44 under continuous movement, which is used to push the guide block 45 to continue to move, so that the guide block 45 continues to push the reverse push block 51 to move, so that the reverse push block 51 moves along the guide groove 42 and drives the arc frame 55 to move synchronously. As the reverse push block 51 moves, the reverse push column 53 is pushed to move along the fixed plate 54, and then the second spring 52 is squeezed between the fixed plate 54 and the reverse push block 51, and then the magnetic suction cylinder 25 moves and slides along the bracket 23, so that the bottom support cylinder 21 moving downward moves to the left or right along the bracket 23 during this process, so that the bottom support cylinder 21 moves up, down, left and right, which can avoid the heating equipment from making hard contact with the bottom of the test tube body 11, resulting in the bottom of the test tube body 11 colliding and causing damage, thereby ensuring the stable preparation of the material inside the test tube body 11.

[0029] In the fourth step, when the centering column 35 is moving, the centering column 35 moves and drives the connecting plate 71 to move. At this time, the connecting plate 71 moves along the displacement groove 74 and drives the rack 72 to move, and the rack 72 moves toward the inside of the embedded groove 75 during the movement, so that the rack 72 engages with the gear ring 73 in the embedded groove 75 and drives the gear ring 73 to rotate, and the rotation of the gear ring 73 drives the limiting sleeve 27 to rotate in the centering frame tube 12, so that the horizontal movement of the centering column 35 drives the limiting sleeve 27 to move in a circle, which is convenient for coordination with the user and convenient for mixing materials, so that the reactants can be mixed more evenly in the test tube body 11, the material diffusion between the reactants is promoted, the preparation reaction time of the material in the test tube body 11 is shortened, and the overall efficiency of the experiment is improved.

[0030] The above only describes certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, a person skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A test tube rack for preparing acrylic thermal conductive electromagnetic wave absorbing materials, comprising a placement rack (1), a plurality of test tube bodies (11) and a plurality of centering rack tubes (12), wherein the centering rack tubes (12) are used to place the test tube bodies (11) in the placement rack (1), characterized in that: A bottom support assembly (2) is used to protect the bottom of a test tube body (11) in a placement rack (1) to ensure that the material in the test tube body (11) is stably prepared. The bottom support assembly (2) comprises a fixing frame (22) fixedly connected to the placement rack (1) and a bottom support tube (21) sleeved on the outside of the test tube body (11). A bracket (23) is fixedly connected to a side of the fixing frame (22) close to the bottom support tube (21). A magnetic suction tube (25) is fixedly connected to the outside of the bottom support tube (21). A magnetic suction slide column (24) is magnetically attracted in the magnetic suction tube (25). A centering hole (26) for the magnetic suction slide column (24) to move up and down is provided in the middle of the inner part of the bracket (23). A support for driving the magnetic suction slide column (24) is provided between the fixing frame (22) and the bracket (23). The present invention relates to a device for removing a test tube body (11) from a test tube body (11) and a magnetic suction tube (24), and the removing component (3) is used to move the bottom support tube (21) up, down, left, and right outside the support tube (23). The centering frame tube (12) is rotatably connected to a limiting sleeve (27). The centering frame tube (12) is provided with a limiting component (6) matched with the limiting sleeve (27). The limiting component (6) is used to accurately place test tube bodies (11) of different sizes in the limiting sleeve (27) and the bottom support tube (21). A rotating component (7) for connection is provided between the removing component (3) and the limiting sleeve (27). The rotating component (7) is used to drive the limiting sleeve (27) to rotate in the centering frame tube (12) and shake and mix the materials in the test tube body (11).

2. The test tube rack for preparing acrylic thermal conductive electromagnetic wave absorbing material according to claim 1, characterized in that: The removal assembly (3) comprises a mounting seat (36) fixedly connected to an end of the magnetic suction slide column (24) away from the magnetic suction cylinder (25), a telescopic motor (301) fixedly connected to a side of the fixed frame (22) close to the placement frame (1), and a movable plate (39) fixedly connected to the telescopic end of the telescopic motor (301), wherein the telescopic motor (301) is used to drive the movable plate (39) to move left and right along one side of the fixed frame (22), and a connecting shaft column (38) is installed on one side of the movable plate (39), and a swing arm (37) is movably connected between the connecting shaft column (38) and the mounting seat (36).

3. The test tube rack for preparing acrylic thermal conductive electromagnetic wave absorbing material according to claim 2, characterized in that: The removal assembly (3) further comprises a first contact plate (32) fixedly connected to a side of the magnetic sliding column (24) close to the magnetic cylinder (25), a second contact plate (33) slidably connected in the bracket (23), and a contact groove (31) provided in the middle of the bracket (23) and communicating with the centering hole (26) for the magnetic cylinder (25) to contact, and the magnetic cylinder (25) is slidably connected in the contact groove (31) and the bracket (23), a sliding groove (302) is provided in the bracket (23) and communicates with the centering hole (26) for the first contact plate (32) to move, and the second contact plate (33) is far away from the bracket (23). A centering column (35) is fixedly connected to one end of the first contact plate (32), and one end of the centering column (35) passes through the bracket (23); a first spring (34) is fixedly connected between the second contact plate (33) and the bracket (23), and the first spring (34) is sleeved on the outside of the centering column (35); a short-range component (4) for cooperating with the second contact plate (33) is provided between the bracket (23) and the movable plate (39), and is used for stably fitting the magnetic suction cylinder (25) and the second contact plate (33), so as to ensure that the magnetic suction cylinder (25) is stably moved to a desired position in the bracket (23).

4. The test tube rack for preparing acrylic thermal conductive electromagnetic wave absorbing material according to claim 3, characterized in that: The short-range component (4) comprises a column (41) fixedly connected to one side of the movable plate (39) and a contact ring (47) slidably connected in the bracket (23) and cooperating with the magnetic suction cylinder (25); a guide groove (42) communicating with the interior of the bracket (23) is provided on one side of the bracket (23); a guide block (45) is slidably connected in the guide groove (42), and the guide block (45) is used to drive the contact ring (47) to move; a guide frame (43) for connection is provided between the column (41) and the bracket (23); one end of the guide block (45) extends to the outside of the guide groove (42) and is fixed with a short-range column (44); a short-range groove (46) for the short-range column (44) to move is provided at the top of the guide frame (43); a reverse thrust component (5) cooperating with the guide block (45) is provided in the guide groove (42), and the reverse thrust component (5) is used to push the magnetic suction cylinder (25) to move and reset.

5. The test tube rack for preparing acrylic thermal conductive electromagnetic wave absorbing material according to claim 4, characterized in that: The reverse thrust assembly (5) comprises a reverse thrust block (51) slidably connected in the guide groove (42) and in contact with the guide block (45), and an arc frame (55) fixedly connected to one end of the reverse thrust block (51), wherein the arc frame (55) is located in the bracket (23) and is in contact with the magnetic suction cylinder (25), a fixing plate (54) is fixedly connected to one side of the bracket (23), one end of the reverse thrust block (51) extends to the outside of the guide groove (42) and is fixed with a reverse thrust column (53), and one end of the reverse thrust column (53) passes through the fixing plate (54), and a second spring (52) is commonly connected between the reverse thrust block (51) and the fixing plate (54), and the second spring (52) is sleeved on the outside of the reverse thrust column (53).

6. The test tube rack for preparing acrylic thermal conductive electromagnetic wave absorbing material according to claim 1, characterized in that: The limiting component (6) comprises a moving groove (62) provided in the limiting sleeve (27), a plurality of contact rings (63) being slidably connected in the moving groove (62), one side of each of the plurality of contact rings (63) being in contact with the outside of the test tube body (11), two symmetrical guide grooves (65) being provided on one side of the contact ring (63), two symmetrical positioning columns (64) being fixedly connected in the moving groove (62), and the two positioning columns (64) being inserted into the two guiding grooves (65), and two third springs (61) being commonly connected between the two guiding grooves (65) and the two positioning columns (64).

7. The test tube rack for preparing acrylic thermal conductive electromagnetic wave absorbing material according to claim 6, characterized in that: A plurality of the contact rings (63) are arranged in a ring array in the limiting sleeve (27), and the top of the contact ring (63) is an arc-shaped structure.

8. The test tube rack for preparing acrylic thermal conductive electromagnetic wave absorbing material according to claim 3, characterized in that: The rotating assembly (7) comprises a connecting plate (71) fixedly connected to one end of a centering column (35) and a toothed ring (73) sleeved on the top of a limiting sleeve (27); a shifting groove (74) for the connecting plate (71) to move is provided on one side of the placement frame (1); one end of the connecting plate (71) passes through the shifting groove (74) and is fixed with a rack (72); the rack (72) is slidably connected to the placement frame (1); and an embedding groove (75) for the toothed ring (73) and the rack (72) to mesh is provided on one side of the placement frame (1) close to the shifting groove (74).

Images