Filtering device for physical and chemical inspection

Abstract

The utility model relates to the technical field of physical and chemical inspection, and discloses a filtering device for physical and chemical inspection, which comprises a base, a stand column is arranged on the right side of the top of the base, and a chute is arranged on the top of the left side of the stand column. According to the filtering device for physical and chemical inspection, a first driving motor is started to drive a spiral blade to rotate, liquid in a liquid storage hopper can be conveyed into a liquid conveying pipe at a constant speed in the rotating process of the spiral blade, and then the liquid flows downwards at a constant speed through the liquid conveying pipe, so that the purpose of uniform feeding is achieved; a second driving motor can be started to drive a filtering funnel and filter paper to rotate, and in the rotating process of the filter paper, liquid flowing down from a liquid conveying pipe can completely cover the surface of the filter paper by a circle, so that the surface of the filter paper is fed by a circle, and the feeding efficiency is improved. Therefore, the surface of the whole filter paper can filter liquid, and the utilization rate of the filter paper is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of physical and chemical testing, in particular to a filtering device for physical and chemical testing. Background Art

[0002] Physical and chemical testing is to test air, liquid, soil, etc. through chemical experiments. When testing liquids, a filtering device is often used to filter the liquid through a funnel and filter paper. However, when feeding the liquid, most of the existing filtering devices rely on gravity to naturally feed the liquid. The flow rate of the liquid may be fast or slow, resulting in uneven feeding, which will affect the filtering effect or efficiency. Secondly, when feeding the liquid, the existing filtering device usually feeds the liquid to a fixed position of the filter paper, resulting in a low utilization rate of the filter paper. Moreover, filtering at the same position of the filter paper for a long time will also reduce the filtering effect. Therefore, a filtering device for physical and chemical testing is proposed. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the shortcomings of the prior art, the utility model provides a filtering device for physical and chemical testing, which has the advantages of uniform feeding and high filter paper utilization rate, and solves the problem that the existing filtering devices mostly rely on gravity to naturally feed the liquid, and the liquid flow speed may be fast or slow, resulting in uneven feeding, which will affect the filtering effect or efficiency. Secondly, when feeding the liquid, the existing filtering devices usually feed the filter paper to a fixed position, resulting in a low utilization rate of the filter paper, and filtering at the same position of the filter paper for a long time will also reduce the problem of filtering effect.

[0005] (II) Technical solution

[0006] The top of the support frame is provided with a toothed structure, and the toothed structure is connected with a toothed structure on the top of the support frame, and a toothed structure is formed on the toothed structure to prevent the toothed structure from being damaged. The filter bag has the filter paper disposed on the inner wall of the filter funnel, a beaker located below the liquid outlet pipe is disposed on the top of the base, an L-shaped plate is disposed on the top of the moving block, which is located on the right side of the liquid storage bucket and one end extends to the top of the liquid storage bucket, a shell is disposed on the top left side of the L-shaped plate, an inner top wall of the shell is provided with a rotating shaft with one end penetrating the L-shaped plate and extending to the inside of the infusion pipe, a spiral blade is disposed on the outside of the rotating shaft and is located below the L-shaped plate, a second drive assembly is disposed on the top of the L-shaped plate, which is located inside the shell and one end is fixedly connected to the outside of the rotating shaft, a second drive motor is disposed on the right side of the bottom of the mounting block, a fixed block is disposed on the left side of the bottom of the mounting block, the output shaft of the second drive motor is provided with a worm located on the rear side of the liquid outlet pipe and one end is movably connected to the right side of the fixed block, and a worm wheel is disposed on the outside of the liquid outlet pipe, which is located below the mounting block and one end is meshed with the worm.

[0007] Preferably, the first driving assembly includes a servo motor, the servo motor is fixedly mounted on the right top of the column, a driving gear is fixedly mounted on the output shaft of the servo motor, and a driven gear located above the column and meshing with the driving gear at one end is fixedly mounted on the outer side of the threaded rod.

[0008] Preferably, the second drive assembly includes a first drive motor, the top of the L-shaped plate is fixedly installed with the first drive motor located inside the shell and on the right side of the rotating shaft, the output shaft of the first drive motor is fixedly installed with a driving bevel gear, and the outer side of the rotating shaft is fixedly installed with a driven bevel gear located inside the shell and meshing with the driving bevel gear at one end.

[0009] Preferably, a first bearing is fixedly mounted on the inner bottom wall of the slide groove, the threaded rod is rotatably connected to the inner bottom wall of the slide groove via the first bearing, and a threaded hole matching the threaded rod is provided inside the moving block.

[0010] Preferably, a first mounting hole is opened on the top of the mounting block and a second bearing is fixedly installed inside the first mounting hole, and the liquid outlet pipe is rotatably connected to the mounting block via the second bearing.

[0011] Preferably, a third bearing is fixedly installed on the left side of the inner top wall of the shell, the rotating shaft is rotatably connected to the inner top wall of the shell through the third bearing, and a second mounting hole adapted to the rotating shaft is opened on the top of the L-shaped plate.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a filtering device for physical and chemical testing, which has the following beneficial effects:

[0014] 1. The filtering device for physical and chemical testing drives the driving bevel gear to rotate by starting the first driving motor, and then drives the rotating shaft and the spiral blade to rotate through the driven bevel gear. During the rotation process, the spiral blade will uniformly transport the liquid in the liquid storage bucket to the inside of the infusion tube, and then flow downward at a uniform speed through the infusion tube, thereby achieving the purpose of uniform feeding and preventing the liquid from flowing at a speed that is sometimes fast and sometimes slow during the natural flow process, thereby avoiding the influence of the filtering effect due to the excessively fast flow speed, and also avoiding the influence of the filtering efficiency due to the excessively slow flow speed.

[0015] 2. The filtering device for physical and chemical testing drives the worm to rotate by starting the second driving motor, and then drives the liquid outlet pipe, the filter funnel and the filter paper to rotate as a whole through the worm gear. During the rotation of the filter paper, the liquid flowing from the infusion tube will fully cover the surface of the filter paper, thereby feeding the surface of the filter paper, so that the entire surface of the filter paper is filtering the liquid, thereby improving the utilization rate of the filter paper, and also avoiding the situation where the filtering effect is poor due to filtering at the same position of the filter paper for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 For this utility model Figure 1 Enlarged view of point B in the middle.

[0019] In the figure: 1 base, 2 column, 3 slide, 4 threaded rod, 5 moving block, 6 first drive assembly, 61 servo motor, 62 drive gear, 63 driven gear, 7 liquid storage bucket, 8 mounting block, 9 liquid outlet pipe, 10 filter funnel, 11 infusion tube, 12 filter paper, 13 beaker, 14 L-type plate, 15 shell, 16 rotating shaft, 17 spiral blade, 18 second drive assembly, 181 first drive motor, 182 drive bevel gear, 183 driven bevel gear, 19 second drive motor, 20 fixed block, 21 worm, 22 worm wheel. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-3 The utility model provides a technical solution: a filtering device for physical and chemical testing, including a base 1, a column 2 is fixedly installed on the top right side of the base 1, a slide groove 3 is opened on the left top of the column 2, a threaded rod 4 with one end extending to the top of the column 2 is movably installed on the inner bottom wall of the slide groove 3, a moving block 5 threadedly connected to the outer side of the threaded rod 4 and with one end extending to the left side of the column 2 is movably installed inside the slide groove 3, a first bearing is fixedly installed on the inner bottom wall of the slide groove 3, the threaded rod 4 is rotatably connected to the inner bottom wall of the slide groove 3 through the first bearing, and a threaded hole matching the threaded rod 4 is opened inside the moving block 5.

[0022] A first drive assembly 6 is fixedly installed on the top right side of the column 2, one end of which is fixedly connected to the outer side of the threaded rod 4. The first drive assembly 6 includes a servo motor 61. The servo motor 61 is fixedly installed on the top right side of the column 2. The model of the servo motor 61 may be YB2-315S-6-70. A driving gear 62 is fixedly installed on the output shaft of the servo motor 61. A driven gear 63 is fixedly installed on the outer side of the threaded rod 4, which is located above the column 2 and one end of which is meshed with the driving gear 62.

[0023] A liquid storage hopper 7 located on the left side of the column 2 is fixedly installed on the top of the moving block 5, and a mounting block 8 located below the moving block 5 is fixedly installed on the left side of the column 2. A liquid outlet pipe 9 with one end extending to its bottom is movably installed on the top of the mounting block 8. A first mounting hole is opened on the top of the mounting block 8 and a second bearing is fixedly installed inside the first mounting hole. The liquid outlet pipe 9 is rotatably connected to the mounting block 8 through the second bearing. A filter funnel 10 is fixedly installed on the top of the liquid outlet pipe 9. An infusion tube 11 with one end penetrating the moving block 5 and extending to the inside of the filter funnel 10 is fixedly installed on the inner bottom wall of the liquid storage hopper 7. Filter paper 12 is placed on the inner wall of the filter funnel 10, and the filter paper 12 is truncated. A beaker 13 located below the liquid outlet pipe 9 is placed on the top of the base 1.

[0024] An L-shaped plate 14 is fixedly installed on the top of the moving block 5, which is located on the right side of the liquid storage bucket 7 and one end of which extends to the top of the liquid storage bucket 7. A shell 15 is fixedly installed on the top left side of the L-shaped plate 14. The inner bottom wall of the shell 15 is designed to be open. A rotating shaft 16 with one end penetrating the L-shaped plate 14 and extending to the inside of the infusion tube 11 is movably installed on the inner top wall of the shell 15. A third bearing is fixedly installed on the left side of the inner top wall of the shell 15. The rotating shaft 16 is rotatably connected to the inner top wall of the shell 15 through the third bearing. A second mounting hole matched with the rotating shaft 16 is opened on the top of the L-shaped plate 14, and a spiral blade 17 located below the L-shaped plate 14 is fixedly installed on the outer side of the rotating shaft 16.

[0025] A second drive assembly 18 is fixedly installed on the top of the L-shaped plate 14, which is located inside the shell 15 and has one end fixedly connected to the outside of the rotating shaft 16. The second drive assembly 18 includes a first drive motor 181. The first drive motor 181 is fixedly installed on the top of the L-shaped plate 14, which is located inside the shell 15 and on the right side of the rotating shaft 16. The model of the first drive motor 181 may be FE130-08350-38. A driving bevel gear 182 is fixedly installed on the output shaft of the first drive motor 181. A driven bevel gear 183 is fixedly installed on the outside of the rotating shaft 16, which is located inside the shell 15 and has one end meshing with the driving bevel gear 182.

[0026] A second drive motor 19 is fixedly installed on the right side of the bottom of the mounting block 8, and the model of the second drive motor 19 can be XD-37GB520YSY. A fixed block 20 is fixedly installed on the left side of the bottom of the mounting block 8. The output shaft of the second drive motor 19 is fixedly installed with a worm 21 located on the rear side of the liquid outlet pipe 9 and one end of which is movably connected to the right side of the fixed block 20. A fourth bearing is fixedly installed on the right side of the fixed block 20, and the worm 21 is rotatably connected to the right side of the fixed block 20 through the fourth bearing. A worm wheel 22 located below the mounting block 8 and one end of which is meshed with the worm 21 is fixedly installed on the outer side of the liquid outlet pipe 9.

[0027] During use, the first drive motor 181 is started by an external controller to drive the driving bevel gear 182 to rotate, and then the driven bevel gear 183 is used to drive the rotating shaft 16 and the spiral blade 17 to rotate. Then, the liquid to be filtered for physical and chemical testing can be poured into the liquid storage bucket 7. At this time, the spiral blade 17 will uniformly transport the liquid in the liquid storage bucket 7 to the inside of the infusion tube 11 during the rotation, and then flow downward at a uniform speed through the infusion tube 11, so as to uniformly load the liquid and prevent the liquid from flowing at a speed that fluctuates during the natural flow, thereby avoiding the influence of the filtration effect due to the excessively fast flow speed, and also avoiding the influence of the filtration efficiency due to the excessively slow flow speed. At the same time, the second drive motor 19 can be started by an external controller to drive the worm 21 to rotate, and then the worm gear 22 is used to drive the liquid outlet pipe 9, the filter funnel 10 and the filter paper 12 to rotate as a whole, and the filter paper 12 is rotated from the infusion tube 11 during the rotation. The liquid flowing down from 11 will completely cover the surface of the filter paper 12 in a circle, thereby loading the surface of the filter paper 12 in a circle, so that the entire surface of the filter paper 12 is filtering the liquid, thereby improving the utilization rate of the filter paper 12, and also avoiding the situation where the filtering effect is poor due to filtering at the same position of the filter paper 12 for a long time. During the downward flow of the liquid on the inclined surface of the filter paper 12, the filter paper 12 will filter the liquid, and finally the filtered liquid will flow into the inside of the beaker 13 through the liquid outlet pipe 9, so as to collect the filtered liquid. After the filtering is completed, the servo motor 61 can be started to drive the driving gear 62 to rotate, and then the driven gear 63 can be used to drive the threaded rod 4 to rotate, so as to drive the moving block 5, the liquid storage bucket 7 and the infusion tube 11 to move upward as a whole, so as to remove the obstruction of the area above the filter funnel 10, thereby facilitating the replacement of the filter paper 12 inside the filter funnel 10.

[0028] In summary, the filtering device for physical and chemical testing drives the driving bevel gear 182 to rotate by starting the first driving motor 181, and then drives the rotating shaft 16 and the spiral blade 17 to rotate through the driven bevel gear 183. During the rotation, the spiral blade 17 will uniformly transport the liquid in the liquid storage bucket 7 to the inside of the infusion tube 11, and then flow downward at a uniform speed through the infusion tube 11, thereby achieving the purpose of uniform feeding, preventing the liquid from flowing at a speed that is sometimes fast and sometimes slow during the natural flow, thereby avoiding the influence of the filtering effect due to the excessively fast flow speed, and also avoiding the influence of the filtering efficiency due to the excessively slow flow speed. Secondly, the worm 21 is driven to rotate by starting the second driving motor 19, and then the liquid outlet pipe 9, the filter funnel 10 and the filter paper 12 are driven to rotate as a whole through the worm gear 22, and during the rotation of the filter paper 12, the liquid from the infusion funnel 10 and the filter paper 12 The liquid flowing down in the liquid pipe 11 will completely cover the surface of the filter paper 12, thereby feeding the surface of the filter paper 12, so that the entire surface of the filter paper 12 is filtering the liquid, thereby improving the utilization rate of the filter paper 12, and also avoiding the situation where the filtering effect is poor due to filtering at the same position of the filter paper 12 for a long time. This solves the problem that when feeding the liquid, most of the existing filtering devices rely on gravity to feed naturally, and the flow speed of the liquid may be fast or slow, resulting in uneven feeding, which will affect the filtering effect or efficiency. Secondly, when feeding the liquid, the existing filtering device usually feeds the fixed position of the filter paper, resulting in a low utilization rate of the filter paper, and filtering at the same position of the filter paper for a long time will also reduce the filtering effect.

[0029] 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although 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 filtering device for physical and chemical testing, comprising a base (1), a column (2) is arranged on the right side of the top of the base (1), a slide groove (3) is arranged on the left top of the column (2), a threaded rod (4) is arranged on the inner bottom wall of the slide groove (3), one end of which extends to the top of the column (2), a moving block (5) is arranged inside the slide groove (3), which is threadedly connected to the outer side of the threaded rod (4) and one end of which extends to the left side of the column (2), a first driving assembly (6) is arranged on the right top of the column (2), and a driving assembly (6) located on the column ( 2) a liquid storage hopper (7) on the left side, a mounting block (8) located below the moving block (5) is arranged on the left side of the column (2), a liquid outlet pipe (9) with one end extending to the bottom thereof is arranged on the top of the mounting block (8), a filter funnel (10) is arranged on the top of the liquid outlet pipe (9), a liquid infusion pipe (11) with one end penetrating the moving block (5) and extending to the inside of the filter funnel (10) is arranged on the inner bottom wall of the liquid storage hopper (7), a filter paper (12) is arranged on the inner wall of the filter funnel (10), a beaker (13) located below the liquid outlet pipe (9) is arranged on the top of the base (1), and the characteristics are as follows: The top of the moving block (5) is provided with an L-shaped plate (14) which is located on the right side of the liquid storage bucket (7) and has one end extending to the top of the liquid storage bucket (7); the top left side of the L-shaped plate (14) is provided with a shell (15); the inner top wall of the shell (15) is provided with a rotating shaft (16) which has one end penetrating the L-shaped plate (14) and extending to the inside of the infusion tube (11); the outer side of the rotating shaft (16) is provided with a spiral blade (17) located below the L-shaped plate (14); the top of the L-shaped plate (14) is provided with a spiral blade (17) located inside the shell (15) A second driving assembly (18) is provided on the right side of the bottom of the mounting block (8) and one end of which is fixedly connected to the outside of the rotating shaft (16); a second driving motor (19) is provided on the right side of the bottom of the mounting block (8); a fixing block (20) is provided on the left side of the bottom of the mounting block (8); the output shaft of the second driving motor (19) is provided with a worm (21) located at the rear side of the liquid outlet pipe (9) and one end of which is movably connected to the right side of the fixing block (20); and a worm wheel (22) is provided on the outside of the liquid outlet pipe (9) and is located below the mounting block (8) and one end of which is meshed with the worm (21).

2. A filtration device for physical and chemical testing according to claim 1, characterized in that: The first driving assembly (6) comprises a servo motor (61), the servo motor (61) is fixedly mounted on the top right side of the column (2), a driving gear (62) is fixedly mounted on the output shaft of the servo motor (61), and a driven gear (63) is fixedly mounted on the outer side of the threaded rod (4), which is located above the column (2) and one end of which is meshed with the driving gear (62).

3. A filtration device for physical and chemical testing according to claim 1, characterized in that: The second drive assembly (18) comprises a first drive motor (181); the first drive motor (181) is fixedly mounted on the top of the L-shaped plate (14) and is located inside the housing (15) and on the right side of the rotating shaft (16); a driving bevel gear (182) is fixedly mounted on the output shaft of the first drive motor (181); and a driven bevel gear (183) is fixedly mounted on the outer side of the rotating shaft (16) and is located inside the housing (15) and has one end meshing with the driving bevel gear (182).

4. A filtration device for physical and chemical testing according to claim 1, characterized in that: A first bearing is fixedly mounted on the inner bottom wall of the slide groove (3); the threaded rod (4) is rotatably connected to the inner bottom wall of the slide groove (3) via the first bearing; and a threaded hole matching the threaded rod (4) is provided inside the moving block (5).

5. A filtration device for physical and chemical testing according to claim 1, characterized in that: A first mounting hole is provided on the top of the mounting block (8), and a second bearing is fixedly installed inside the first mounting hole. The liquid outlet pipe (9) is rotatably connected to the mounting block (8) via the second bearing.

6. A filtration device for physical and chemical testing according to claim 1, characterized in that: A third bearing is fixedly mounted on the left side of the inner top wall of the shell (15); the rotating shaft (16) is rotatably connected to the inner top wall of the shell (15) via the third bearing; and a second mounting hole adapted to the rotating shaft (16) is provided on the top of the L-shaped plate (14).

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