Water bath nitrogen blowing concentrator

Abstract

The utility model discloses a water bath nitrogen blowing instrument and belongs to the field of nitrogen blowing instruments. The utility model relates to a water bath nitrogen blowing instrument, which comprises a water bath kettle, and further comprises a counterweight disc, a pressure sensor and a controller, the central bracket is arranged on the counterweight disc; the mounting assembly is used for mounting a test tube, is arranged in the water bath kettle and is connected with the central bracket; the communication block is arranged on the central bracket in a sliding manner; the positioning pipe is fixedly arranged on the communication block, and the positioning pipe is in sliding connection with the central bracket; the fixing assembly is arranged on the positioning pipe, and the fixing assembly is used for fixing the positioning pipe to a center support; the limiting rings are symmetrically and fixedly connected to the communicating block; the mounting plates are circumferentially arranged on the communicating block, and the mounting plates are in sliding connection with the communicating block; according to the utility model, the test tubes with different sample solvent liquid levels can be subjected to water bath concentration at the same time, so that the water bath concentration efficiency of the sample solvent is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen blowers, in particular to a water bath nitrogen blower. Background Art

[0002] The water bath nitrogen blower utilizes the inert and oxygen-isolating characteristics of nitrogen, adopts water bath heating, and blows nitrogen at the top. Through the rapid flow of nitrogen, the gas-liquid equilibrium above the liquid can be broken, accelerating the evaporation and concentration speed of the liquid and enabling it to evaporate rapidly, thereby achieving the purpose of quickly concentrating the sample, shortening the analysis time, and meeting the needs of rapid detection. This method has the advantages of time-saving, simple operation, and easy control.

[0003] Currently, the jet needles of the water bath nitrogen blower are installed on the same component, and the lower ends of the jet needles are on the same horizontal plane. When the liquid levels of the sample solvents in the test tubes are inconsistent, they cannot be adjusted individually, so the water bath concentration of sample solvents with different liquid levels cannot be carried out. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a water bath nitrogen blower that can overcome or at least partially solve the above problems.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A water bath nitrogen blower includes: a water bath pot, and further includes: a counterweight plate arranged in the water bath pot; a central support arranged on the counterweight plate; an installation component for installing test tubes, arranged in the water bath pot, and the installation component is connected to the central support; a communication block slidably arranged on the central support; a positioning tube fixedly arranged on the communication block, and the positioning tube is slidably connected to the central support; a fixing component arranged on the positioning tube, and the fixing component is used to fix the positioning tube to the central support; a limiting ring symmetrically and fixedly connected to the communication block; a plurality of mounting plates arranged in a circle on the communication block, and the mounting plates are slidably connected to the communication block; a plurality of groups of limiting rods fixedly arranged between the two limiting rings, and the mounting plates are slidably arranged on the limiting rods; a plurality of lead screws rotatably arranged between the two limiting rings, and one end of the lead screw penetrates through one of the limiting rings, and the lead screw is threadedly connected to the mounting plate; a jet needle arranged on the mounting plate; a communication pipe arranged between the jet needle and the communication block; and an air supply pipe arranged on the communication block.

[0007] To facilitate the installation of test tubes, further, the installation component includes a bottom baffle and a limiting plate fixedly arranged on the central support. A plurality of limiting grooves are formed in the limiting plate, and a plurality of arc-shaped pressing pieces are fixedly connected in a circle in the limiting grooves.

[0008] For facilitating the fixation of the positioning tube, further, the fixing assembly includes locking bolts symmetrically threadedly connected to the positioning tube.

[0009] For facilitating the support of test tubes of different sizes, further, a plurality of support blocks matching the limiting grooves are fixedly connected to the bottom baffle, support grooves are formed in the support blocks, and the support grooves are trapezoidally arranged.

[0010] For facilitating the fixation of the jet needle, further, a first magnetic block is fixedly connected to the mounting plate, the jet needle slides on the mounting plate, and a second magnetic block matching the first magnetic block is fixedly connected to the jet needle.

[0011] Preferably, a plurality of scale lines are provided on the communication block.

[0012] Compared with the prior art, the present utility model provides a water bath nitrogen blowing instrument, which has the following

[0013] Beneficial effects:

[0014] 1. For this water bath nitrogen blowing instrument, by rotating the lead screw beside the current jet needle, the position of the mounting plate is adjusted to lower it to a set position where the jet needle is placed on the liquid surface of the sample solvent, so that simultaneous water bath concentration of test tubes with different liquid surfaces of the sample solvent can be carried out, thereby effectively improving the efficiency of water bath concentration of the sample solvent.

[0015] 2. For this water bath nitrogen blowing instrument, by providing a trapezoidal support groove in cooperation with the support block, corresponding support can be provided for test tubes with different diameters, preventing the contact area between the test tube and the support groove from being too small and affecting its stability.

[0016] 3. For this water bath nitrogen blowing instrument, the jet needle is fixed by the first magnetic block and the second magnetic block, thereby facilitating the disassembly and assembly of the jet needle.

[0017] Parts not involved in this device are the same as those in the prior art or can be realized by using the prior art. The present utility model can carry out simultaneous water bath concentration of test tubes with different liquid surfaces of the sample solvent, thereby effectively improving the efficiency of water bath concentration of the sample solvent. Brief Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of a water bath nitrogen blowing instrument proposed by the present utility model;

[0019] Figure 2 is a partial structural schematic diagram of a water bath nitrogen blowing instrument proposed by the present utility model;

[0020] Figure 3 is a water bath nitrogen blowing instrument proposed by the present utility model Figure 2 an enlarged schematic diagram of part A in

[0021] Figure 4 A schematic cross-sectional view of a water bath nitrogen blowing instrument proposed by the present utility model;

[0022] Figure 5 A water bath nitrogen blowing instrument proposed by the present utility model Figure 4 An enlarged schematic view of part B in it.

[0023] In the figure: 1. Water bath; 101. Counterweight plate; 102. Central support; 103. Bottom baffle; 104. Support block; 105. Support groove; 106. Limiting plate; 107. Limiting groove; 108. Arc-shaped pressing piece; 109. Test tube; 2. Connecting block; 201. Positioning tube; 202. Locking bolt; 203. Limiting ring; 204. Mounting plate; 205. Limiting rod; 206. Lead screw; 207. First magnetic block; 208. Jet needle; 209. Second magnetic block; 210. Connecting pipe; 211. Air supply pipe; 212. Scale line. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] Embodiment 1: Refer to Figures 1-5 , A water bath nitrogen blowing instrument, comprising: a water bath 1, and further comprising: a counterweight plate 101 disposed within the water bath 1; a central support 102 disposed on the counterweight plate 101; a mounting assembly for mounting a test tube 109, disposed within the water bath 1 and connected to the central support 102; a connecting block 2 slidably disposed on the central support 102; a positioning tube 201 fixedly disposed on the connecting block 2 and slidably connected to the central support 102; a fixing assembly disposed on the positioning tube 201 and used to fix the positioning tube 201 to the central support 102; limiting rings 203 symmetrically and fixedly connected to the connecting block 2; a plurality of mounting plates 204 arranged in a circle on the connecting block 2 and slidably connected to the connecting block 2; a plurality of groups of limiting rods 205 fixedly disposed between the two limiting rings 203 and the mounting plates 204 slidably disposed on the limiting rods 205; a plurality of lead screws 206 rotatably disposed between the two limiting rings 203 and one end of the lead screw 206 passing through one of the limiting rings 203, the lead screw 206 being threadedly connected to the mounting plate 204; a jet needle 208 disposed on the mounting plate 204; a connecting pipe 210 disposed between the jet needle 208 and the connecting block 2; an air supply pipe 211 disposed on the connecting block 2.

[0026] The installation components include a bottom baffle 103 and a limiting plate 106 fixedly arranged on the central bracket 102. A plurality of limiting grooves 107 are formed in the limiting plate 106, and a plurality of arc-shaped pressing pieces 108 are fixedly connected in a circular shape in the limiting grooves 107.

[0027] The fixing components include locking bolts 202 symmetrically threadedly connected to the positioning tube 201.

[0028] When performing water bath concentration on the sample solvent, place the sample solvent to be concentrated in a test tube 109, and then place the test tube 109 in the limiting groove 107 so that the bottom of the test tube 109 is in contact with the bottom baffle 103. When adjusting the jet needle 208, rotate the locking bolt 202 to release the positioning of the positioning tube 201, and then adjust the entire connecting block 2 downward so that the lower end of the jet needle 208 is placed above the liquid level of the sample solvent. When the liquid level of part of the sample solvent is relatively low, by rotating the lead screw 206 beside the current jet needle 208, adjust the position of the mounting plate 204 so that it descends to the set position where the jet needle 208 is placed in the liquid level of the sample solvent, so as to simultaneously perform water bath concentration on different test tubes 109 of the sample solvent liquid level, thereby effectively improving the efficiency of water bath concentration of the sample solvent.

[0029] When performing nitrogen blowing, an external nitrogen delivery mechanism transports nitrogen into the connecting block 2 through the air supply pipe 211, and the connecting block 2 transports nitrogen into the jet needle 208 through the connecting pipe 210 and sprays it out.

[0030] It should be noted that the water bath 1 heats water by means of electric heating in the prior art.

[0031] Example 2: Refer to Figures 1-5 , a water bath nitrogen blowing instrument, which is basically the same as Example 1. Further, a plurality of support blocks 104 matching the limiting grooves 107 are fixedly connected to the bottom baffle 103. Support grooves 105 are formed in the support blocks 104, and the support grooves 105 are trapezoidally arranged.

[0032] By setting the trapezoidal support grooves 105 to cooperate with the support blocks 104, corresponding supports can be provided for test tubes 109 with different diameters, preventing the contact area between the test tube 109 and the support groove 105 from being too small and affecting its stability.

[0033] A first magnetic block 207 is fixedly connected to the mounting plate 204, and the jet needle 208 slides on the mounting plate 204. A second magnetic block 209 matching the first magnetic block 207 is fixedly connected to the jet needle 208.

[0034] The jet needle 208 is fixed by the first magnetic block 207 and the second magnetic block 209, thus facilitating the disassembly and assembly of the jet needle 208.

[0035] Multiple scale lines 212 are provided on the connected block 2.

[0036] By providing the scale lines 212, the position of the mounting plate 204 can be adjusted more intuitively.

[0037] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes, should be covered within the protection scope of the present invention.

Claims

1. A water bath nitrogen blowing instrument, comprising: Water bath (1), characterized in that it further comprises: A counterweight plate (101) disposed within the water bath (1); A central support (102) disposed on the counterweight plate (101); An installation assembly for installing a test tube (109), disposed within the water bath (1), and the installation assembly is connected to the central support (102); A connecting block (2) slidably disposed on the central support (102); A positioning tube (201) fixedly disposed on the connecting block (2), and the positioning tube (201) is slidably connected to the central support (102); A fixing assembly disposed on the positioning tube (201), and the fixing assembly is used to fix the positioning tube (201) to the central support (102); Limit rings (203) symmetrically and fixedly connected to the connecting block (2); A plurality of mounting plates (204) arranged in a circle on the connecting block (2), and the mounting plates (204) are slidably connected to the connecting block (2); Multiple groups of limiting rods (205) fixedly disposed between the two limit rings (203), and the mounting plates (204) are slidably disposed on the limiting rods (205); A plurality of lead screws (206) rotatably disposed between the two limit rings (203), and one end of the lead screw (206) penetrates through one of the limit rings (203), and the lead screw (206) is threadedly connected to the mounting plate (204); A jet needle (208) disposed on the mounting plate (204); A connecting pipe (210) disposed between the jet needle (208) and the connecting block (2); An air supply pipe (211) disposed on the connecting block (2).

2. The water bath nitrogen blowing instrument according to claim 1, wherein The installation assembly includes a bottom baffle (103) and a limiting plate (106) fixedly disposed on the central support (102). A plurality of limiting grooves (107) are formed on the limiting plate (106), and a plurality of arc-shaped pressing pieces (108) are fixedly connected in a circle within the limiting grooves (107).

3. The water bath nitrogen blowing instrument according to claim 1, characterized in that, The fixing assembly includes locking bolts (202) symmetrically and threadedly connected to the positioning tube (201).

4. The water bath nitrogen blowing instrument according to claim 2, characterized in that A plurality of support blocks (104) matching the limiting grooves (107) are fixedly connected to the bottom baffle (103). A support groove (105) is formed on the support block (104), and the support groove (105) is trapezoidally arranged.

5. The water bath nitrogen blowing instrument according to claim 1, characterized in that, A first magnet (207) is fixedly connected to the mounting plate (204), and the jet needle (208) slides on the mounting plate (204). A second magnet (209) matching the first magnet (207) is fixedly connected to the jet needle (208).

6. The water bath nitrogen blowing instrument according to claim 1, characterized in that, A plurality of scale lines (212) are provided on the connecting block (2).

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