Liquid nitrogen collection auxiliary device for mass spectrometer

Abstract

The utility model belongs to the technical field of mass spectrometers, and discloses a liquid nitrogen collection auxiliary device for a mass spectrometer, which comprises a liquid nitrogen tank. The base is fixedly mounted at the bottom of the liquid nitrogen tank; the universal wheels are arranged at the bottom of the outer side of the base; the storage assembly is arranged in the inner cavity of the base and the inner side of the universal wheel and comprises a connecting circular plate, and the connecting circular plate is movably installed in the inner cavity of the base and the inner side of the universal wheel. By arranging the fixing block, the inclined plates and the linkage rod, the whole double-thread lead screw can rotate by starting the driving motor, then the two inclined plates can move oppositely, and at the moment, the linkage rod can be extruded and driven to slide upwards along the inner walls of the inclined plates; and the fixing blocks, the connecting circular plates and the universal wheels are driven to integrally move upwards until the universal wheels are moved and stored above the bottom of the base, finally, the bottom of the base makes direct contact with the ground, the contact area is increased, and the liquid nitrogen tank is integrally fixed more stably.

Description

Technical Field

[0001] The utility model belongs to the technical field of mass spectrometers, in particular to a liquid nitrogen collection auxiliary device for a mass spectrometer. Background Art

[0002] A mass spectrometer is a device that uses high-energy electron flow to bombard sample molecules, causing the molecules to lose electrons and become positively charged molecular ions and fragment ions. When using existing mass spectrometers, liquid nitrogen is often used, and a corresponding liquid nitrogen collection device is required to collect the liquid nitrogen and store it for subsequent use. The bottom of the liquid nitrogen collection device is provided with corresponding rollers to facilitate subsequent pushing and transportation and save effort. However, when it is transported to a fixed position, it is usually fixed by using the roller brake function, and the roller has a small contact area with the ground and the support is extremely unstable, so it needs to be improved. Utility Model Content

[0003] In order to solve the problems raised in the above background technology, the utility model provides a liquid nitrogen collection auxiliary device for a mass spectrometer, which has the advantage of facilitating improving the fixing and supporting effect of the collection device.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid nitrogen collection auxiliary device for a mass spectrometer, comprising a liquid nitrogen tank;

[0005] A base, which is fixedly installed on the bottom of the liquid nitrogen tank;

[0006] Universal wheels are arranged at the bottom of the outer side of the base;

[0007] A storage component is arranged in the inner cavity of the base and the inner side of the universal wheel and includes a connecting circular plate. The connecting circular plate is movably installed in the inner cavity of the base and the inner side of the universal wheel. A limiting slide groove located on the inner side of the universal wheel is opened on the outer side of the bottom end of the base. The outer end of the connecting circular plate is movably connected to the limiting slide groove. A fixing block is fixedly installed in the middle of the top end of the connecting circular plate. Through the upward movement of the fixing block and the connecting circular plate as a whole, the universal wheel can be moved upward as a whole to the top of the base for storage.

[0008] Preferably, a sealing cover is hingedly connected to the middle of the top of the liquid nitrogen tank, and a lifting bucket is movably installed at the bottom of the inner cavity of the liquid nitrogen tank.

[0009] Preferably, a sealing plug located between a sealing cover and a lifting bucket is movably installed on the top of the inner cavity of the liquid nitrogen tank, and handles are fixedly installed on both sides of the top of the liquid nitrogen tank.

[0010] Preferably, a driving assembly is fixedly mounted on the bottom end of the liquid nitrogen tank, and the driving assembly includes a mounting block, a driving motor and a double-threaded lead screw;

[0011] The mounting blocks are fixedly mounted on both sides of the bottom end of the liquid nitrogen tank, the drive motor is fixedly mounted on the outer side of one end of the mounting block, and the double-threaded lead screw is fixedly mounted on the output end of the drive motor.

[0012] Preferably, a linkage assembly is provided in the middle of the double-threaded lead screw, and the linkage assembly includes an inclined plate and a linkage rod;

[0013] The inclined plate is threadedly sleeved on both sides of the middle part of the double-threaded lead screw, and the linkage rod is fixedly installed on the outer side of the top of the fixed block and the bottom of the inner wall of the inclined plate.

[0014] Preferably, there are two linkage rods, and the two linkage rods have the same size.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The utility model is provided with a fixed block, an inclined plate and a linkage rod. By starting a driving motor, the double-threaded lead screw can be rotated as a whole, and then the two inclined plates can be moved away from each other. At this time, the linkage rod will be squeezed and driven to slide upward along the inner wall of the inclined plate, so as to drive the fixed block, the connecting circular plate and the universal wheel to move upward as a whole, until the universal wheel is moved and stored above the bottom of the base, and finally directly contacts the ground through the bottom of the base, thereby increasing the contact area and making the liquid nitrogen tank more firmly fixed as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0020] Figure 4 It is a cross-sectional structural schematic diagram of the inclined plate of the utility model;

[0021] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at point B in the middle.

[0022] In the figure: 1. liquid nitrogen tank; 2. sealing cover; 3. handle; 4. sealing plug; 5. bucket; 6. base; 7. universal wheel; 8. storage assembly; 801. connecting circular plate; 802. limiting slide groove; 803. fixing block; 9. driving assembly; 901. mounting block; 902. driving motor; 903. double-threaded screw; 10. linkage assembly; 101. inclined plate; 102. linkage rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 5 As shown, the utility model provides a liquid nitrogen collection auxiliary device for a mass spectrometer, comprising a liquid nitrogen tank 1;

[0025] A base 6, which is fixedly mounted on the bottom of the liquid nitrogen tank 1;

[0026] Universal wheels 7, which are arranged at the outer bottom of the base 6;

[0027] The storage component 8 is arranged in the inner cavity of the base 6 and the inner side of the universal wheel 7 and includes a connecting circular plate 801. The connecting circular plate 801 is movably installed in the inner cavity of the base 6 and the inner side of the universal wheel 7. A limiting slide groove 802 located on the inner side of the universal wheel 7 is opened on the outer side of the bottom end of the base 6. The outer end of the connecting circular plate 801 is movably connected to the limiting slide groove 802. A fixing block 803 is fixedly installed in the middle of the top of the connecting circular plate 801. Through the upward movement of the fixing block 803 and the connecting circular plate 801 as a whole, the universal wheel 7 can be moved upward as a whole to the top of the base 6 for storage.

[0028] Through the upward slanting design of the inner wall at the bottom of the inclined plate 101, when the two inclined plates 101 move in opposite directions, the linkage rods 102 on both sides of the top of the fixed block 803 can be squeezed and pushed to slide synchronously along the inclined surface of the inclined plate 101. At this time, since the fixed block 803 and the linkage rod 102 are fixed as a whole, the overall upward slanting movement of the inclined plate 101 can be changed into a vertical upward movement.

[0029] like Figure 2 and Figure 4 As shown, a sealing cover 2 is hingedly connected to the middle of the top of the liquid nitrogen tank 1, and a lifting bucket 5 is movably installed at the bottom of the inner cavity of the liquid nitrogen tank 1.

[0030] By adopting the above solution, by providing the lifting bucket 5 , the operator can pour the liquid nitrogen into the lifting bucket 5 , and then store it in the liquid nitrogen tank 1 in sequence.

[0031] like Figure 1 , Figure 2 and Figure 4 As shown, a sealing plug 4 located between a sealing cover 2 and a lifting bucket 5 is movably installed on the top of the inner cavity of the liquid nitrogen tank 1, and handles 3 are fixedly installed on both sides of the top of the liquid nitrogen tank 1.

[0032] By adopting the above scheme, by providing the sealing plug 4, when the operator inserts the sealing plug 4 into the inner cavity of the liquid nitrogen tank 1, the top of the bucket 5 can be blocked and fixed, and the top part of the liquid nitrogen tank 1 can be well sealed.

[0033] like Figure 5 As shown, a driving assembly 9 is fixedly installed at the bottom end of the liquid nitrogen tank 1, and the driving assembly 9 includes a mounting block 901, a driving motor 902 and a double-threaded lead screw 903;

[0034] The mounting block 901 is fixedly mounted on both sides of the bottom end of the liquid nitrogen tank 1 , the driving motor 902 is fixedly mounted on the outer side of one end of the mounting block 901 , and the double-threaded lead screw 903 is fixedly mounted on the output end of the driving motor 902 .

[0035] By adopting the above solution, the driving motor 902 is provided. When the driving motor 902 is running as a whole, the output end of the driving motor 902 can rotate to drive the double-threaded lead screw 903 to rotate synchronously as a whole.

[0036] like Figure 3 and Figure 5 As shown, a linkage assembly 10 is disposed in the middle of the double-threaded lead screw 903, and the linkage assembly 10 includes an inclined plate 101 and a linkage rod 102;

[0037] The inclined plate 101 is threadedly sleeved on both sides of the middle of the double-threaded lead screw 903, and the linkage rod 102 is fixedly installed on the top outer side of the fixed block 803 and the bottom of the inner wall of the inclined plate 101;

[0038] There are two linkage rods 102 , and the two linkage rods 102 have the same size.

[0039] By adopting the above scheme, a linkage rod 102 is provided. When the double-threaded screw 903 rotates, due to the double-threaded design of the double-threaded screw 903, the two inclined plates 101 can be driven to move in opposite directions, so as to drive the linkage rod 102 and the fixed block 803 to move upward as a whole.

[0040] The working principle and use process of this utility model:

[0041] First, when the operator needs to fix the liquid nitrogen tank 1 as a whole in a specified position, the driving motor 902 can be started so that the double-threaded screw 903 drives the two inclined plates 101 to move oppositely, and the linkage rod 102 can drive the fixed block 803, the connecting circular plate 801 and the universal wheel 7 along the inner wall of the inclined plate 101 to move vertically upward as a whole until the bottom surface of the base 6 contacts the ground, thereby fixing the liquid nitrogen tank 1 as a whole stably. When the liquid nitrogen needs to be collected and stored inside, the sealing cover 2 can be flipped open, the sealing plug 4 can be pulled out, and the lifting bucket 5 can be taken out. At this time, the liquid nitrogen can be poured into the lifting bucket 5, and finally put back into the liquid nitrogen tank 1 in sequence for storage and collection.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid nitrogen collection auxiliary device for a mass spectrometer, characterized in that: Including a liquid nitrogen tank (1); A base (6) fixedly mounted on the bottom of the liquid nitrogen tank (1); Universal wheels (7), which are arranged at the outer bottom of the base (6); The storage assembly (8) is arranged in the inner cavity of the base (6) and the inner side of the universal wheel (7) and comprises a connecting circular plate (801), the connecting circular plate (801) is movably installed in the inner cavity of the base (6) and the inner side of the universal wheel (7), a limiting slide groove (802) located on the inner side of the universal wheel (7) is opened on the outer side of the bottom end of the base (6), the outer end of the connecting circular plate (801) is movably connected to the limiting slide groove (802), and a fixing block (803) is fixedly installed in the middle of the top of the connecting circular plate (801), and the fixing block (803) and the connecting circular plate (801) move upward as a whole, so that the universal wheel (7) can be moved upward as a whole to the top of the base (6) for storage.

2. The liquid nitrogen collection auxiliary device for mass spectrometer according to claim 1, characterized in that: A sealing cover (2) is hingedly connected to the middle of the top of the liquid nitrogen tank (1), and a lifting bucket (5) is movably installed at the bottom of the inner cavity of the liquid nitrogen tank (1).

3. The liquid nitrogen collection auxiliary device for mass spectrometer according to claim 1, characterized in that: A sealing plug (4) is movably installed at the top of the inner cavity of the liquid nitrogen tank (1) and is located between the sealing cover (2) and the lifting bucket (5). Handles (3) are fixedly installed on both sides of the top of the liquid nitrogen tank (1).

4. The liquid nitrogen collection auxiliary device for mass spectrometer according to claim 1, characterized in that: A driving assembly (9) is fixedly mounted on the bottom end of the liquid nitrogen tank (1), and the driving assembly (9) comprises a mounting block (901), a driving motor (902) and a double-threaded lead screw (903); The mounting block (901) is fixedly mounted on both sides of the bottom end of the liquid nitrogen tank (1), the drive motor (902) is fixedly mounted on the outer side of one end of the mounting block (901), and the double-threaded lead screw (903) is fixedly mounted on the output end of the drive motor (902).

5. The liquid nitrogen collection auxiliary device for mass spectrometer according to claim 4, characterized in that: A linkage assembly (10) is disposed in the middle of the double-threaded lead screw (903), and the linkage assembly (10) comprises an inclined plate (101) and a linkage rod (102); The inclined plate (101) is threadedly sleeved on both sides of the middle part of the double-threaded lead screw (903), and the linkage rod (102) is fixedly installed on the outer side of the top of the fixed block (803) and the bottom of the inner wall of the inclined plate (101).

6. The liquid nitrogen collection auxiliary device for mass spectrometer according to claim 5, characterized in that: The number of the linkage rods (102) is two, and the two linkage rods (102) have the same size.

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