A test tube high temperature digestion fixing mechanism

Abstract

The utility model relates to the technical field of high-temperature digestion of test tubes, and discloses a fixing mechanism for high-temperature digestion of test tubes, including a chassis and a test tube body, the top of the test tube body is plugged with a hexagonal plug, the top of the chassis is fixedly connected to a support column, the top of the support column is fixedly connected to a fixing frame, multiple ends of the fixing frame are provided with support holes for placing the test tube body, multiple ends of the fixing frame are provided with through holes, a plug shaft is plugged in the through hole, and the top of the plug shaft is fixedly connected to a pressing frame. The utility model blocks the test tube body by the hexagonal plug and inserts the test tube body into the supporting hole, then moves the pressing frame downward by an extrusion assembly and inserts the hexagonal plug through the hexagonal slot and presses and fixes it, thereby avoiding the situation where the hexagonal plug is rushed open when the test tube is conducting a high-temperature digestion experiment, affecting the progress of the experiment.

Description

Technical Field

[0001] The utility model relates to the technical field of test tube high temperature digestion, and more specifically to a test tube high temperature digestion fixing mechanism. Background Art

[0002] Test tube high temperature digestion is a chemical experimental technique, usually used to digest organic or inorganic substances in samples. This method decomposes or burns the substances in the sample by placing the sample at high temperature in order to analyze or process the sample.

[0003] In the test tube high temperature digestion, the sample is first placed in the test tube and sealed with a test tube stopper, and then the test tube is heated to reach the required high temperature. During heating, a flame or a heater can be used to provide a heat source. However, when the test tube is heated, the internal pressure of the test tube continues to increase, and the test tube stopper is easily broken open, thereby affecting the progress of the experiment. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a test tube high-temperature digestion fixing mechanism to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a test tube high-temperature digestion fixing mechanism, comprising a chassis and a test tube body, the top of the test tube body is plugged with a hexagonal plug, the top of the chassis is fixedly connected to a support column, the top of the support column is fixedly connected to a fixing frame, multiple ends of the fixing frame are provided with support holes for placing the test tube body, multiple ends of the fixing frame are provided with through holes, an insertion shaft is plugged in the through hole, the top of the insertion shaft is fixedly connected to a pressing frame, the bottom of the pressing frame is provided with a hexagonal slot that matches the hexagonal plug, and the bottom ends of multiple of the insertion shafts are provided with extrusion components for fixing their positions.

[0006] As a further solution of the utility model, multiple sides of the multiple hexagonal slots are provided with chamfered corners.

[0007] As a further solution of the utility model, the extrusion assembly includes a support plate, which is fixedly connected to the bottom end of the insertion shaft. A threaded hole is opened in the support plate, a threaded rod is threadedly connected in the threaded hole, and a knob is fixedly connected to the bottom end of the threaded rod.

[0008] As a further solution of the utility model, key strips are fixedly connected to both sides of the insertion shaft, and the circumferential inner wall of the through hole is provided with a key groove that fits with the key strip.

[0009] As a further solution of the utility model, the distance between the bottom end of the key bar and the top surface of the support plate is much greater than the length of the through hole.

[0010] As a further solution of the utility model, a spring is sleeved on one side of the insertion shaft, and the bottom end of the spring is fixed to the support plate, and the top end of the spring is fixedly connected to a ring, and the ring is in contact with the fixing frame.

[0011] As a further solution of the utility model, the support plate, the insertion shaft and the pressure frame are distributed in a Z shape.

[0012] As a further solution of the utility model, buckle grooves are provided on both sides of the bottom of the plurality of press frames.

[0013] As a further solution of the utility model, an auxiliary frame is fixedly connected to the outer side of the circumference of the support column, and the bottom end of the auxiliary frame is fixed to the chassis.

[0014] Technical effects and advantages of the utility model:

[0015] 1. The utility model seals the test tube body through the hexagonal plug and inserts the test tube body into the supporting hole, then moves the pressing frame downward through the extrusion assembly and inserts the hexagonal plug through the hexagonal slot and presses and fixes it, thereby preventing the hexagonal plug from being rushed open during the high-temperature digestion experiment of the test tube, affecting the progress of the experiment.

[0016] 2. The utility model locates the rotation position of the pressing frame by means of the key bar and the key slot, so that the center line of the hexagonal slot coincides with the center line of the hexagonal plug. The pressing frame is pulled upward to a suitable position and rotated to expose the test tube body, thereby facilitating the removal of the test tube body and making it more convenient to use.

[0017] 3. The utility model drives the threaded rod to move upward by rotating the knob, and the threaded rod contacts and squeezes the fixed frame, so that the insertion shaft is forced to drive the pressing frame to move downward and quickly press the hexagonal plug through the hexagonal slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the front three-dimensional structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the bottom three-dimensional structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the partial decomposition structure of the utility model.

[0021] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model.

[0022] The accompanying drawings are marked as follows: 1. hexagonal plug; 2. test tube body; 3. support column; 4. chassis; 5. auxiliary frame; 6. pressure frame; 7. fixed frame; 8. plug-in shaft; 9. hexagonal slot; 10. key strip; 11. key slot; 12. through hole; 13. support hole; 14. buckle groove; 15. threaded hole; 16. threaded rod; 17. knob; 18. support plate; 19. spring; 20. ring; 21. chamfer. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0024] Reference Figure 1-Figure 4 The utility model provides a test tube high temperature digestion fixing mechanism, including a chassis 4 and a test tube body 2, a hexagonal plug 1 is inserted at the top of the test tube body 2, a support column 3 is fixed to the top of the chassis 4 by bolts, a fixing frame 7 is fixed to the top of the support column 3 by bolts, an auxiliary frame 5 is fixed to the outer side of the circumference of the support column 3 by bolts, and the bottom end of the auxiliary frame 5 is fixed to the chassis 4, so that the support column 3 is more stable, multiple ends of the fixing frame 7 are provided with supporting holes 13 for placing the test tube body 2, multiple ends of the fixing frame 7 are provided with through holes 12, an insertion shaft 8 is inserted in the through hole 12, the top of the insertion shaft 8 is fixed with a pressing frame 6 by bolts, and both sides of the bottom of the pressing frame 6 are A buckle and pull groove 14 is provided to facilitate the upward pulling of the pressure frame 6. A hexagonal slot 9 that matches the hexagonal plug 1 is provided at the bottom of the pressure frame 6. Multiple sides of the multiple hexagonal slots 9 are provided with chamfered angles 21 to facilitate the engagement of the hexagonal slots 9 with the hexagonal plug 1. The bottom ends of the multiple plug shafts 8 are provided with an extrusion component to fix their positions. The test tube body 2 is sealed by the hexagonal plug 1 and the test tube body 2 is inserted into the supporting hole 13. Then, the pressure frame 6 is moved downward by the extrusion component and the hexagonal plug 1 is inserted into the hexagonal slot 9 and pressed and fixed, thereby preventing the hexagonal plug 1 from being rushed open during the high-temperature digestion experiment of the test tube, affecting the progress of the experiment.

[0025] In order to achieve rapid extrusion and fixation, the extrusion assembly in the utility model includes a support plate 18, which is fixed to the bottom end of the plug shaft 8 by bolts. The support plate 18, the plug shaft 8 and the pressure frame 6 are distributed in a Z shape, so as to facilitate the avoidance and pressing actions. A threaded hole 15 is provided in the support plate 18, and a threaded rod 16 is connected to the threaded hole 15 by thread. The bottom end of the threaded rod 16 is fixed with a knob 17 by bolts. By rotating the knob 17, the knob 17 drives the threaded rod 16 to move upward and contact and squeeze the fixing frame 7, so that the plug shaft 8 is forced to drive the pressure frame 6 to move downward and press the hexagonal plug 1 through the hexagonal slot 9. Both sides of the plug shaft 8 are fixed with key strips 10 by bolts, and the circumferential inner wall of the through hole 12 is provided with a key groove 11 that fits the key strip 10. The distance between the bottom end of 10 and the top surface of the support plate 18 is much greater than the length of the through hole 12. The rotation position of the pressing frame 6 is positioned by the key bar 10 and the key slot 11, so that the hexagonal slot 9 coincides with the center line of the hexagonal plug 1. At the same time, the pressing frame 6 can be pulled upward to drive the insertion shaft 8 to move upward and disengage the key bar 10 from the key slot 11, and the pressing frame 6 is rotated to expose the test tube body 2, so that it is convenient to take out the test tube body 2, which is more convenient to use. A spring 19 is sleeved on one side of the insertion shaft 8, and the bottom end of the spring 19 is fixed to the support plate 18. The top end of the spring 19 is fixed with a ring 20 by bolts, and the ring 20 is in contact with the fixing frame 7, so that the elastic force of the spring 19 makes the pressing frame 6 have a downward force, which is convenient for the experimenter to pre-fix the test tube.

[0026] The test tube high temperature digestion experiment is divided into the following steps:

[0027] S1: First, the pressing frame 6 is pulled upward to drive the inserting shaft 8 to move upward and disengage the key bar 10 from the key slot 11, and the pressing frame 6 is rotated to a suitable position;

[0028] S2: Then, the test tube body 2 is sealed by the hexagonal plug 1 and the test tube body 2 is inserted into the support hole 13;

[0029] S3: Then, the pressing frame 6 is rotated in the reverse direction, and the key bar 10 is re-engaged with the key slot 11. Then, the elastic force of the spring 19 causes the pressing frame 6 to have a downward force, and the hexagonal slot 9 is engaged with the hexagonal plug 1 and is initially fixed;

[0030] S4: Then rotate the knob 17, the knob 17 drives the threaded rod 16 to move upward and contact and squeeze the fixed frame 7, so that the insertion shaft 8 is forced to drive the pressing frame 6 to move downward and press the hexagonal plug 1 through the hexagonal slot 9, so as to avoid the hexagonal plug 1 from being rushed open during the high-temperature digestion experiment of the test tube, affecting the progress of the experiment.

[0031] Finally, a few points should be explained: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0032] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A test tube high temperature digestion fixing mechanism, comprising a base plate (4) and a test tube body (2), wherein a hexagonal plug (1) is inserted at the top of the test tube body (2), characterized in that: The top of the chassis (4) is fixedly connected to a support column (3), the top of the support column (3) is fixedly connected to a fixing frame (7), multiple ends of the fixing frame (7) are provided with support holes (13) for placing the test tube body (2), multiple ends of the fixing frame (7) are provided with through holes (12), an insertion shaft (8) is inserted into the through hole (12), the top of the insertion shaft (8) is fixedly connected to a pressing frame (6), the bottom of the pressing frame (6) is provided with a hexagonal slot (9) that matches the hexagonal plug (1), and the bottom ends of the multiple insertion shafts (8) are provided with extrusion components for fixing their positions.

2. A test tube high temperature digestion fixing mechanism according to claim 1, characterized in that: Multiple sides of the multiple hexagonal slots (9) are provided with chamfered corners (21).

3. A test tube high temperature digestion fixing mechanism according to claim 1, characterized in that: The extrusion assembly comprises a support plate (18), the support plate (18) is fixedly connected to the bottom end of the insertion shaft (8), a threaded hole (15) is provided in the support plate (18), a threaded rod (16) is threadedly connected to the threaded hole (15), and a knob (17) is fixedly connected to the bottom end of the threaded rod (16).

4. A test tube high temperature digestion fixing mechanism according to claim 3, characterized in that: Key bars (10) are fixedly connected to both sides of the insertion shaft (8), and a key groove (11) matching with the key bar (10) is formed on the circumferential inner wall of the through hole (12).

5. A test tube high temperature digestion fixing mechanism according to claim 4, characterized in that: The distance between the bottom end of the key strip (10) and the top surface of the support plate (18) is much greater than the length of the through hole (12).

6. A test tube high temperature digestion fixing mechanism according to claim 3, characterized in that: A spring (19) is sleeved on one side of the insertion shaft (8), and the bottom end of the spring (19) is fixed to the support plate (18). The top end of the spring (19) is fixedly connected to a circular ring (20), and the circular ring (20) is in contact with the fixing frame (7).

7. A test tube high temperature digestion fixing mechanism according to claim 3, characterized in that: The support plate (18), the insertion shaft (8) and the pressing frame (6) are distributed in a Z shape.

8. A test tube high temperature digestion fixing mechanism according to claim 1, characterized in that: Buckle and pull grooves (14) are provided on both sides of the bottom of the plurality of pressing frames (6).

9. A test tube high temperature digestion fixing mechanism according to claim 1, characterized in that: An auxiliary frame (5) is fixedly connected to the outer circumferential side of the support column (3), and the bottom end of the auxiliary frame (5) is fixed to the chassis (4).

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