Mute type high-passing-rate airflow screening instrument rotating disc structure

Abstract

The invention relates to a silent type high-passing-rate airflow screening instrument rotating disc structure, and belongs to the technical field of particle material analysis and screening. The silent type high-passing-rate airflow screening instrument rotating disc structure comprises a screening instrument body, an airflow generator body is arranged on one side of the screening instrument body, a screening box is arranged on the outer wall of the screening instrument body, and a screening cavity is formed in the inner wall of the screening box; a filter screen body is arranged on the inner wall of the screening cavity, and a discharging collecting box is arranged below the airflow generator body. When objects are continuously screened in the screening cavity, in order to achieve the continuous dredging effect on the surface of the filter screen when the objects are screened and prevent the situation that the screening precision is influenced due to blockage of the filter screen after long-time use, the negative pressure nozzle is continuously unblocked when the rotating rod drives the negative pressure nozzle to continuously rotate; when the airflow screening instrument is used, objects can be blown up and continuously impact the surface of the filter screen, so that filter holes in the surface of the filter screen are synchronously dredged under the impact vibration of the objects, and the effect of improving the continuous screening efficiency of the airflow screening instrument on the objects is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of particle material analysis and screening, and in particular to a silent, high-throughput airflow screening instrument turntable structure. Background Art

[0002] Airflow screening machine is a high-precision screening equipment for fine powder screening with mesh. It is widely used in chemical, pharmaceutical, food, papermaking, metallurgy, building materials, rubber, machinery and other industries. It can continuously screen powder materials with a fineness range of 80-500 mesh. The screen can be replaced at will. The airflow screening machine has the characteristics of high screening efficiency, large output, accurate fineness, and no oversize mixing phenomenon.

[0003] In the prior art, a negative pressure air flow screening instrument with announcement number CN221983152U includes a frame, an upper end of which is fixedly mounted with a separation cylinder, an air outlet cylinder is welded on one side of the separation cylinder, and a negative pressure cylinder is welded on the other side, a driving cylinder is welded on one side of the negative pressure cylinder, and a discharge cylinder is integrally provided at the lower end of the air outlet cylinder, and the rotating shaft is located inside a section of the outer wall of the separation cylinder and is fixedly mounted with a connecting rod. The utility model proposes a negative pressure air flow screening instrument, the rotation of the rotating shaft drives the fan to rotate at high speed, and the fan blows out the air in the air flow screen. At this time, negative pressure is formed inside the air flow screen, and the feed port is connected to the feeding device. Since the air flow screen is in a negative pressure state, the powder in the feeding device is adsorbed by the negative pressure and moves upward to try to pass through the screen. Powder with a particle size smaller than the screen can pass through the screen and be blown to the air outlet cylinder, and then discharged through the discharge cylinder on the side of the air outlet cylinder. Powder particles with larger particle size cannot pass through the screen and accumulate on the outer wall of the screen to achieve separation.

[0004] However, in many scientific research and production fields, particle size analysis of particulate materials is of vital importance. Traditional screening equipment, such as vibrating screens, mainly rely on mechanical vibration to make particles pass through the screen for classification. However, this method has many disadvantages: on the one hand, for tiny particles, mechanical vibration is difficult to effectively disperse them and make them pass through the screen, resulting in low screening efficiency, and particle agglomeration is prone to occur, affecting screening accuracy; on the other hand, when processing some materials that are prone to static electricity and high viscosity, the screen is very easy to clog and requires frequent cleaning, which seriously affects the experimental process. In addition, the traditional screening instrument has a low degree of automation and requires frequent manual intervention in operation and data recording, which increases human errors and labor intensity and does not meet people's usage needs. For this reason, we propose a silent, high-throughput airflow screening instrument turntable structure. Summary of the Invention

[0005] In order to solve the problems mentioned in the above background, the present invention provides a silent, high-throughput airflow screening instrument turntable structure to solve the problems of low screening accuracy, poor efficiency, easy clogging and insufficient automation of existing screening equipment mentioned in the above background technology, and achieve the effect of fast, accurate and automated screening analysis of particulate materials.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows: A silent, high-throughput airflow screening instrument turntable structure comprises a screening instrument body, an airflow generator body is provided on one side of the screening instrument body, a screening box is provided on the outer wall of the screening instrument body, a screening cavity is provided on the inner wall of the screening box, a filter body is provided on the inner wall of the screening cavity, a discharge collection box is provided below the airflow generator body, a control screen is provided on the outer wall of the screening instrument body, and a printing outlet is provided on the side wall of the screening instrument body; The top of the transmission gear is fixedly provided with a toothed connecting strip which is cooperatively connected with the toothed connecting strip, and the toothed connecting strip is connected with the toothed connecting strip to form a bottom surface.

[0007] Preferably, an outer wall of the rotating shaft is provided with an insertion hole corresponding to the bolt mounting hole, the rotating rod is arranged below the filter body, and the filter body is fixed in the screening cavity through a sealing ring.

[0008] Preferably, the airflow generator body includes a negative pressure device, a filter and an air inlet pipe. The control screen is internally provided with a microprocessor and a connected pressure sensor. The negative pressure nozzle is provided. When the object is continuously screened in the screening chamber, in order to continuously clear the surface of the filter when screening the object, and to prevent the filter from being blocked and affecting the screening accuracy after long-term use, when the rotating rod drives the negative pressure nozzle to rotate continuously, the object will be blown up and continuously impact the surface of the filter, so that the filter holes on the surface of the filter are synchronously cleared under the impact and vibration of the object, thereby achieving the effect of improving the continuous screening efficiency of the airflow screening instrument for objects.

[0009] Preferably, the outer wall of the delivery pipe is detachably connected to a connecting hose connected to the outer wall of the airflow generator body, and a vacuum cleaner connecting pipe is provided on the top of the airflow generator body.

[0010] The top of described sliding panel also is provided with an interlock plate, and the interlock plate is hinged on the base plate, is fixed with a backing pin on the interlock plate, and an end of sliding panel withstands on the backing pin of interlock plate, and an end of sliding panel withstands on the backing pin of interlock plate.

[0011] Preferably, the positioning blocks are symmetrically arranged on both sides of the cover plate, and the outer wall profile of the positioning blocks is L-shaped.

[0012] Preferably, the anti-sway mechanism includes a first protective plate and a second protective plate, the outer wall of the connecting hose is sleeved with the first protective plate, the outer wall of the first protective plate is snap-connected to the second protective plate sleeved with the outer wall of the connecting hose, the outer wall of the first protective plate is detachably connected to a pull rope, one end of the pull rope is detachably connected to a connecting ring fixedly connected to the outer wall of the positioning block, the outer wall of the second protective plate is fixedly connected to the first connecting block, the outer wall of the first protective plate is fixedly connected to the second connecting block, the outer wall of the first connecting block is threadedly connected to a plug rod, the end of the plug rod is fixedly connected to a plug plate slidably connected to the outer wall of the second connecting block, the outer wall of the plug rod is provided with an external spiral, the first An inner spiral is provided at the connection between the outer wall of a connecting block and the outer spiral, and a connecting hole is provided at the connection between the outer wall of the second connecting block and the plug plate. The first protective plate and the second protective plate are provided. When the screened objects are continuously transported through the connecting hose, in order to prevent the airflow from causing large fluctuations in the connecting hose during continuous transportation, causing pulling to affect the sealing performance of the hose transportation, the first protective plate and the second protective plate can be snap-fitted and installed on the outer wall of the connecting hose, and then the pull rope can be tied to the first protective plate and the connecting ring at the same time. The pull rope can be kept in a taut state under the centering sliding of the positioning block, so as to achieve the effect of improving the stability of the connecting hose under the action of airflow.

[0013] Preferably, the inner wall contour of the connecting hole is larger than the outer wall contour of the plugging plate, the width of the connecting hole is smaller than the length of the plugging plate, and the outer wall contour of the connecting portion between the plugging plate and the plugging rod is T-shaped.

[0014] Preferably, the outer wall of the screening instrument body is detachably connected to a connecting plate, the outer wall of the connecting plate is provided with a fastening nut, the inner wall of the fastening nut is threadedly connected to a fastening bolt, one end of the fastening bolt is rotatably connected to a limit block slidably connected to the outer wall of the connecting plate, the outer wall of the limit block is fixedly connected to a spring fixedly connected to the outer wall of the connecting plate, and a fixing groove is provided at the connection part between the outer wall of the connecting plate and the limit block. When the limit block is installed and used through the connecting hose and the delivery pipe, in order to improve the stability of the interface between the connecting hose and the delivery pipe for long-term use, the bolt is rotated through the limiting action of the nut to drive the limit block to slide along the inner wall of the fixing groove, and continuously squeeze the connection between the connecting hose and the delivery pipe, thereby achieving the effect of improving the stability of the connection between the connecting hose and the delivery pipe.

[0015] Preferably, the limit block is arranged on the installation track of the delivery pipe and the connecting hose, and the outer wall profile of the limit block is semicircular.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The mounting socket and bolt mounting hole provided in the present invention, when the rotating shaft drives the rotating rod to rotate continuously, and under the action of the negative pressure nozzle, the air pressure generates a continuous airflow in the screening chamber to screen objects, in order to further improve the connection stability between the rotating shaft and the rotating rod, after the rotating shaft and the rotating rod are installed through the mounting socket, the rotating shaft and the rotating rod are installed with bolts through the bolt mounting hole, thereby achieving the effect of improving the stability of the rotating rod under continuous rotation.

[0017] 2. The negative pressure nozzle provided in the present invention, when the object is continuously screened in the screening chamber, in order to continuously clear the filter surface during screening of the object and prevent the filter from being blocked after long-term use and affecting the screening accuracy, when the rotating rod drives the negative pressure nozzle to rotate continuously, the object will be blown up and continuously impact the filter surface, so that the filter holes on the filter surface are synchronously cleared under the impact and vibration of the object, thereby achieving the effect of improving the continuous screening efficiency of the airflow screening instrument for objects.

[0018] 3. The positioning blocks provided in the present invention are used to improve the stability of the cover plate in sealing and protecting the screening chamber when objects are continuously screened by the airflow screening instrument, and to prevent the cover plate from shaking and affecting the sealing effect of the screening chamber. After the cover plate is placed, the turntable is rotated to drive the sliding column to slide synchronously along the inner wall of the inclined groove and the slide groove, and drive the two groups of positioning blocks to slide relative to each other, so as to achieve the effect of limiting and fixing the cover plate, thereby achieving the effect of improving the stability of the cover plate in daily use.

[0019] 4. The first protective plate and the second protective plate provided in the present invention, when continuously conveying the screened objects through the connecting hose, in order to prevent the airflow from causing large fluctuations in the connecting hose during continuous conveying, causing pulling to affect the sealing performance of the hose conveying, the first protective plate and the second protective plate can be snap-fitted and installed on the outer wall of the connecting hose, and then the pull rope can be tied to the first protective plate and the connecting ring at the same time. The pull rope can be kept taut by the centering sliding of the positioning block, thereby achieving the effect of improving the stability of the connecting hose under the action of airflow.

[0020] 5. The limit block provided in the present invention, when installed and used through the connecting hose and the delivery pipe, in order to improve the stability of the interface between the connecting hose and the delivery pipe during long-term use, the rotating bolt drives the limit block to slide along the inner wall of the fixed groove through the limiting effect of the nut, and continuously squeezes the connection between the connecting hose and the delivery pipe, thereby achieving the effect of improving the stability of the connection between the connecting hose and the delivery pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall rear view structure of the present invention; Figure 3 Schematic diagram of the internal structure of the screening instrument of the present invention; Figure 4 Schematic diagram of the position distribution structure of the rotating rod of the present invention; Figure 5 This is a schematic diagram of the installation jack position distribution structure of the present invention; Figure 6 This is a schematic diagram of the negative pressure nozzle position distribution structure of the present invention; Figure 7 This is a schematic diagram of the bolt mounting hole position distribution structure of the present invention; Figure 8 This is a schematic diagram of the connection ring position distribution structure of the present invention; Figure 9 Schematic diagram of the position distribution structure of the first protective plate and the second protective plate of the present invention; Figure 10 For the present invention Figure 8 A in the figure shows the enlarged structural diagram; Figure 11 For the present invention Figure 2 A schematic diagram of the structure at point B in FIG. Figure 12 For the present invention Figure 9 The enlarged structural diagram at C in FIG.

[0022] The reference numerals in the accompanying drawings are: 1. Screening instrument body; 2. Air flow generator body; 3. Screening chamber; 4. Discharge collection box; 5. Control panel; 6. Print outlet; 7. Screening box; 8. Filter body; 9. Drive motor; 10. Rotating shaft; 11. Rotating rod; 12. Mounting jack; 13. Bolt mounting hole; 14. Delivery pipe; 15. Air pressure regulating valve; 16. Negative pressure nozzle; 17. Fastening turntable; 18. Fixed plate; 19. Sliding column; 20. Chute; 21. Slide; 22. Cover plate; 23. Positioning block; 24. Connecting hose; 25. Vacuum cleaner connecting pipe; 26. First protective plate; 27. Second protective plate; 28. Pull rope; 29. Connecting ring; 30. Connecting plate; 31. Fastening nut; 32. Fastening bolt; 33. Limiting block; 34. Spring; 35. Fixing groove; 36. First connecting block; 37. Second connecting block; 38. Insert rod; 39. Insert plate; 40. External spiral; 41. Internal spiral; 42. Connecting hole. DETAILED DESCRIPTION

[0023] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments. Example

[0024] See also Figures 1 to 12 The present embodiment provides a silent, high-throughput airflow screening instrument turntable structure, comprising a screening instrument body 1, an airflow generator body 2 provided on one side of the screening instrument body 1, a screening box 7 provided on the outer wall of the screening instrument body 1, a screening cavity 3 provided on the inner wall of the screening box 7, a filter body 8 provided on the inner wall of the screening cavity 3, a discharge collection box 4 provided below the airflow generator body 2, a control screen 5 provided on the outer wall of the screening instrument body 1, and a printing outlet 6 provided on the side wall of the screening instrument body 1; A driving motor 9 is provided inside the screening instrument body 1, and the output end of the driving motor 9 is fixedly connected to a rotating shaft 10. The outer wall of the rotating shaft 10 is detachably connected to a rotating rod 11 located inside the screening chamber 3. A mounting socket 12 is provided at the connection part between the bottom of the rotating rod 11 and the rotating shaft 10, and a bolt mounting hole 13 is provided on the outer wall of the rotating rod 11. The bottom of the screening box 7 is fixedly connected to a delivery pipe 14 extending to the outer wall of the screening instrument body 1, and the outer wall of the delivery pipe 14 is provided with an air pressure regulating valve 15. The top of the rotating rod 11 is provided with a negative pressure nozzle 16, and the outer wall of the screening box 7 is provided with a positioning mechanism.

[0025] like Figure 5 As shown, the outer wall of the rotating shaft 10 is provided with a socket corresponding to the bolt mounting hole 13, the rotating rod 11 is arranged below the filter body 8, and the filter body 8 is fixed in the screening chamber 3 by a sealing ring, which is conducive to setting the rotating rod 11 below the filter body 8, so as to achieve the effect of automatic collision and anti-blocking of the filter body 8 under the action of airflow.

[0026] like Figure 1 and Figure 2 As shown, the airflow generator body 2 includes a negative pressure device, a filter and an air inlet pipe. The control panel 5 is internally provided with a microprocessor and a connected pressure sensor. The negative pressure device provides a stable air source. The filter performs multi-stage filtration on the incoming air to remove impurities and moisture, ensuring that the air entering the screening chamber 3 is pure. The pressure during the screening process is monitored in real time by the sensor. In addition, the flow regulation of the air inlet system can be adjusted to realize automatic control of the entire screening process. At the same time, the control system can also be connected to a printer to print, transmit and store the screening data in real time for easy subsequent analysis and processing.

[0027] like Figure 2 As shown, the outer wall of the conveying pipe 14 is detachably connected to a connecting hose 24 connected to the outer wall of the airflow generator body 2, and a vacuum cleaner connecting pipe 25 is provided on the top of the airflow generator body 2, which is conducive to achieving the effect of convenient transportation and collection of objects through the setting of the connecting hose 24.

[0028] like Figure 8 and Figure 10 As shown, the positioning mechanism includes a positioning block 23, the outer wall of the screening box 7 is threadedly connected to the fastening turntable 17, the outer wall of the fastening turntable 17 is slidably connected to the sliding column 19, the outer wall of the sliding column 19 is slidably connected to the fixed plate 18 fixedly connected to the outer wall of the screening box 7, the connection part between the outer wall of the fastening turntable 17 and the sliding column 19 is provided with an inclined groove 20, the connection part between the outer wall of the fixed plate 18 and the sliding column 19 is provided with a slide groove 21, the top of the sliding column 19 is fixedly connected with a positioning block 23, and a cover located on one side of the positioning block 23 is placed on the top of the screening box 7 The plate 22 and the outer wall of the connecting hose 24 are provided with an anti-sway mechanism. When the objects are continuously screened by the airflow screening instrument, in order to improve the stability of the cover plate 22 in sealing and protecting the screening chamber 3, and to prevent the cover plate 22 from shaking and affecting the sealing effect of the screening chamber 3, after the cover plate 22 is placed, the fastening turntable 17 is rotated to drive the sliding column 19 to slide synchronously along the inner wall of the inclined groove 20 and the slide groove 21, and drive the two groups of positioning blocks 23 to slide relative to each other, so as to achieve the effect of limiting and fixing the cover plate 22, and achieve the effect of improving the stability of the cover plate 22 in daily use.

[0029] like Figure 10 As shown, the positioning blocks 23 are symmetrically arranged on both sides of the cover plate 22, and the outer wall profile of the positioning blocks 23 is L-shaped, which is beneficial to achieve the effect of limiting and fixing the cover plate 22 through the setting of the outer wall profile of the positioning blocks 23 in the L-shape, thereby achieving the effect of improving the stability of the cover plate 22 in daily use.

[0030] like Figures 1-12As shown, the anti-sway mechanism includes a first protective plate 26 and a second protective plate 27. The outer wall of the connecting hose 24 is sleeved with the first protective plate 26. The outer wall of the first protective plate 26 is snap-connected with the second protective plate 27 sleeved on the outer wall of the connecting hose 24. The outer wall of the first protective plate 26 is detachably connected with a pull rope 28. One end of the pull rope 28 is detachably connected with a connecting ring 29 fixedly connected to the outer wall of the positioning block 23. The outer wall of the second protective plate 27 is fixedly connected with a first connecting block 36. The outer wall of the first protective plate 26 is fixedly connected with the second connecting block 37. The outer wall of the first connecting block 36 is threadedly connected with an insert rod 38. The end of the insert rod 38 is fixedly connected with a plug plate 39 slidably connected to the outer wall of the second connecting block 37. The outer wall of the insert rod 38 is provided with an outer spiral 40 An inner spiral 41 is provided at the connection position between the outer wall of the first connecting block 36 and the outer spiral 40, and a connecting hole 42 is provided at the connection position between the outer wall of the second connecting block 37 and the plug plate 39. When the screened objects are continuously transported through the connecting hose 24, in order to prevent the airflow from causing large fluctuations in the connecting hose 24 during continuous transportation, causing pulling to affect the sealing performance of the hose transportation, the first protective plate 26 and the second protective plate 27 can be snap-fitted and installed on the outer wall of the connecting hose 24, and then the pull rope 28 can be tied to the first protective plate 26, and the pull rope 28 can be tied to the connecting ring 29 at the same time, and the pull rope 28 can be kept in a taut state under the centering sliding of the positioning block 23, so as to achieve the effect of improving the stability of the connecting hose 24 under the action of airflow.

[0031] like Figure 12 As shown, the inner wall contour of the connecting hole 42 is larger than the outer wall contour of the plug plate 39, the width of the connecting hole 42 is smaller than the length of the plug plate 39, and the outer wall contour of the connecting part of the plug plate 39 and the plug rod 38 is T-shaped, which is conducive to achieving the effect of pre-fitting and installing the first protective plate 26 and the second protective plate 27 by making the inner wall contour of the connecting hole 42 larger than the outer wall contour of the plug plate 39.

[0032] like Figure 11 When the cam 33 is in the closed position, the cam 33 is in the closed position, and the cam 33 is in the closed position, so that the cam 33 is in the open position and the cam 33 is in the closed position.

[0033] like Figure 11 As shown, the limit block 33 is set on the installation track of the delivery pipe 14 and the connecting hose 24, and the outer wall contour of the limit block 33 is semicircular, which is conducive to setting the limit block 33 on the installation track of the delivery pipe 14 and the connecting hose 24, thereby achieving the effect of improving the stability of the connection between the connecting hose 24 and the delivery pipe 14.

[0034] Working principle: like Figures 1-12 As shown, when the airflow screening instrument is in use, first, the rotating shaft 10 drives the rotating rod 11 to rotate continuously, and under the action of the negative pressure nozzle 16, the air pressure generates a continuous airflow in the screening chamber 3 to screen the objects. In order to further improve the connection stability between the rotating shaft 10 and the rotating rod 11, after the rotating shaft 10 and the rotating rod 11 are installed through the mounting hole 12, the rotating shaft 10 and the rotating rod 11 are installed with bolts through the bolt mounting hole 13, so as to achieve the effect of improving the stability of the rotating rod 11 under continuous rotation; Next, when the object is continuously screened in the screening chamber 3, in order to continuously dredge the filter surface during screening and prevent the filter from being blocked and affecting the screening accuracy after long-term use, the rotating rod 11 drives the negative pressure nozzle 16 to rotate continuously, which will cause the object to be blown up and continuously impact the filter surface. As a result, the filter holes on the filter surface are synchronously dredged under the impact and vibration of the object, thereby achieving the effect of improving the continuous screening efficiency of the airflow screening instrument for objects. Next, when the objects are continuously screened by the airflow screening instrument, in order to improve the stability of the cover plate 22 in sealing and protecting the screening chamber 3 and prevent the cover plate 22 from shaking and affecting the sealing effect of the screening chamber 3, after the cover plate 22 is placed, the fastening turntable 17 is rotated to drive the sliding column 19 to slide synchronously along the inner wall of the chute 20 and the chute 21, and drive the two sets of positioning blocks 23 to slide relative to each other, so as to achieve the effect of limiting and fixing the cover plate 22, thereby improving the stability of the cover plate 22 in daily use; Next, when the connecting hose 24 and the delivery pipe 14 are installed and used, in order to improve the stability of the interface between the connecting hose 24 and the delivery pipe 14 during long-term use, the bolt is rotated through the limiting action of the nut to drive the limiting block 33 to slide along the inner wall of the fixing groove 35, and continuously squeeze the connection between the connecting hose 24 and the delivery pipe 14, thereby achieving the effect of improving the stability of the connection between the connecting hose 24 and the delivery pipe 14.

[0035] Finally, prepare for startup: check whether the connections of all parts of the equipment are normal, turn on the power, turn on the negative airflow generator, provide 0.3Mpa airflow, and when the pressure difference sensor detects that the screen pressure difference is greater than 50Pa, trigger the reverse blowing to make it run stably.

[0036] -Parameter setting: On the control system operation interface, set parameters such as air flow rate, screening time, pressure threshold, etc. according to the characteristics of the material to be screened and the experimental requirements.

[0037] - Sample addition: Add an appropriate amount of granular material into the screening chamber 3 through the feed port.

[0038] Start Screening: Press the start button to activate the air supply system. Air enters the screening chamber 3 through the dispersion nozzles, driving the material in the chamber and screening it. The control system monitors various parameters in real time and automatically adjusts the equipment's operating status according to pre-set procedures.

[0039] - Screening end: After the set screening time is reached, the equipment automatically stops running. Remove the collection bottle and conduct subsequent analysis and processing of the screened material.

[0040] -Shutdown steps: Turn off the vacuum cleaner, empty the residual gas in the system, and turn off the power.

[0041] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A silent high-throughput airflow screening instrument turntable structure, comprising a screening instrument body (1), characterized in that: An airflow generator body (2) is provided on one side of the screening instrument body (1), a screening box (7) is provided on the outer wall of the screening instrument body (1), a screening cavity (3) is provided on the inner wall of the screening box (7), a filter body (8) is provided on the inner wall of the screening cavity (3), a discharge collection box (4) is provided below the airflow generator body (2), a control screen (5) is provided on the outer wall of the screening instrument body (1), and a printing outlet (6) is provided on the side wall of the screening instrument body (1); A driving motor (9) is provided inside the screening instrument body (1), and an output end of the driving motor (9) is fixedly connected to a rotating shaft (10), and an outer wall of the rotating shaft (10) is detachably connected to a rotating rod (11) located inside the screening chamber (3), and a mounting socket (12) is provided at the connection portion between the bottom of the rotating rod (11) and the rotating shaft (10), and a bolt mounting hole (13) is provided on the outer wall of the rotating rod (11), and a delivery pipe (14) extending to the outer wall of the screening instrument body (1) is fixedly connected to the bottom of the screening box (7), and an air pressure regulating valve (15) is provided on the outer wall of the delivery pipe (14), and a negative pressure nozzle (16) is provided on the top of the rotating rod (11), and a positioning mechanism is provided on the outer wall of the screening box (7).

2. The turntable structure of a silent, high-throughput airflow sieving instrument according to claim 1, characterized in that: The outer wall of the rotating shaft (10) is provided with a socket corresponding to the bolt mounting hole (13); the rotating rod (11) is arranged below the filter body (8); and the filter body (8) is fixed in the screening chamber (3) via a sealing ring.

3. The turntable structure of a silent high-throughput airflow sieving instrument according to claim 1 is characterized by: The airflow generator body (2) comprises a negative pressure device, a filter and an air inlet pipe, and a microprocessor and a connection pressure sensor are provided inside the control panel (5).

4. The turntable structure of a silent, high-throughput airflow sieving instrument according to claim 1 is characterized by: The outer wall of the delivery pipe (14) is detachably connected to a connecting hose (24) connected to the outer wall of the airflow generator body (2), and a vacuum cleaner connecting pipe (25) is provided on the top of the airflow generator body (2).

5. The turntable structure of a silent high-throughput airflow sieving instrument according to claim 4 is characterized in that: The positioning mechanism includes a positioning block (23), the outer wall of the screening box (7) is threadedly connected to a fastening turntable (17), the outer wall of the fastening turntable (17) is slidably connected to a sliding column (19), the outer wall of the sliding column (19) is slidably connected to a fixed plate (18) fixedly connected to the outer wall of the screening box (7), an inclined groove (20) is provided at the connection portion between the outer wall of the fastening turntable (17) and the sliding column (19), a sliding groove (21) is provided at the connection portion between the outer wall of the fixed plate (18) and the sliding column (19), the top of the sliding column (19) is fixedly connected to the positioning block (23), a cover plate (22) located on one side of the positioning block (23) is placed on the top of the screening box (7), and an anti-sway mechanism is provided on the outer wall of the connecting hose (24).

6. The turntable structure of a silent, high-throughput airflow sieving instrument according to claim 5, characterized in that: The positioning blocks (23) are symmetrically arranged on both sides of the cover plate (22), and the outer wall profile of the positioning blocks (23) is L-shaped.

7. The turntable structure of a silent, high-throughput airflow sieving instrument according to claim 5, characterized in that: The anti-sway mechanism comprises a first protective plate (26) and a second protective plate (27), the outer wall of the connecting hose (24) is sleeved with the first protective plate (26), the outer wall of the first protective plate (26) is snap-connected with the second protective plate (27) sleeved on the outer wall of the connecting hose (24), the outer wall of the first protective plate (26) is detachably connected to a drawstring (28), one end of the drawstring (28) is detachably connected to a connecting ring (29) fixedly connected to the outer wall of the positioning block (23), and the outer wall of the second protective plate (27) is fixedly connected to the first connecting block (36). The outer wall of the first protective plate (26) is fixedly connected to the second connecting block (37), the outer wall of the first connecting block (36) is threadedly connected to the inserting rod (38), the end of the inserting rod (38) is fixedly connected to the inserting plate (39) slidably connected to the outer wall of the second connecting block (37), the outer wall of the inserting rod (38) is provided with an outer spiral (40), the connection portion between the outer wall of the first connecting block (36) and the outer spiral (40) is provided with an inner spiral (41), and the connection portion between the outer wall of the second connecting block (37) and the inserting plate (39) is provided with a connecting hole (42).

8. The turntable structure of a silent, high-throughput airflow sieving instrument according to claim 7, characterized in that: The inner wall profile of the connecting hole (42) is larger than the outer wall profile of the inserting plate (39), the width of the connecting hole (42) is smaller than the length of the inserting plate (39), and the outer wall profile of the connection portion between the inserting plate (39) and the inserting rod (38) is T-shaped.

9. The turntable structure of a silent, high-throughput airflow sieving instrument according to claim 1, characterized in that: The outer wall of the screening instrument body (1) is detachably connected to a connecting plate (30), the outer wall of the connecting plate (30) is provided with a fastening nut (31), the inner wall of the fastening nut (31) is threadedly connected to a fastening bolt (32), one end of the fastening bolt (32) is rotatably connected to a limit block (33) slidably connected to the outer wall of the connecting plate (30), the outer wall of the limit block (33) is fixedly connected to a spring (34) fixedly connected to the outer wall of the connecting plate (30), and a fixing groove (35) is provided at the connection portion between the outer wall of the connecting plate (30) and the limit block (33).

10. The turntable structure of a silent, high-throughput airflow sieving instrument according to claim 9, characterized in that: The limit block (33) is arranged on the installation track of the delivery pipe (14) and the connecting hose (24), and the outer wall profile of the limit block (33) is semicircular.

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