Laboratory air purification device

Abstract

The invention belongs to the technical field of air purification, and particularly relates to a laboratory air purification device which comprises an object fixing frame, the object fixing frame is fixedly installed on an experiment table top, a box body is fixedly installed at the top of the object fixing frame, a plurality of carbon containing cavities are formed in the box body and used for containing activated carbon, and replacement assemblies are arranged among the carbon containing cavities; when the weight of the activated carbon detected by the carbon detection assembly reaches a certain value, the carbon detection assembly controls the replacement assembly to drive the multiple carbon containing cavities to exchange positions through the mother ring wheel, so that the activated carbon is replaced, and meanwhile, the replacement assembly drives the gas closing assembly to block gas in the gas flow pipe; the device has the advantages that the activated carbon is automatically replaced, the use state of the activated carbon is measured, the gas filtering function is kept, purified air can be continuously provided for a laboratory, and the safety of experimenters and equipment is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of air purification, in particular to a laboratory air purification device. Background Art

[0002] Laboratory air purification is an important measure to ensure the quality of the experimental environment and the health of scientific researchers. The laboratory air purification system uses a variety of technical means, such as high-efficiency filtration, adsorption, sterilization, etc., to effectively remove harmful substances and microorganisms in the air, thereby ensuring the accuracy of experimental data and the safety of scientific researchers.

[0003] Since experiments are conducted frequently in the laboratory, when activated carbon is used to purify and filter the laboratory air, the activated carbon has a certain service life. Therefore, when using activated carbon to purify the air in the laboratory, in order to ensure the effect of air purification, the activated carbon needs to be replaced frequently, which is more troublesome. If the activated carbon is saturated during the experiment, the experiment needs to be interrupted and the activated carbon needs to be replaced manually, which is not conducive to the development of the experiment. At the same time, some experiments cannot be terminated once they are carried out. At this time, the escaping gas cannot be well handled, which is not conducive to air purification and is also very likely to pose a threat to the safety of the experimenters.

[0004] To this end, the present invention provides a laboratory air purification device. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a laboratory air purification device described in the present invention includes a solid rack, which is fixedly installed on the experimental desktop, a box body is fixedly installed on the top of the solid rack, a plurality of nano-carbon cavities are arranged inside the box body, the nano-carbon cavities are used to place activated carbon, a replacement component is arranged between the plurality of nano-carbon cavities, the replacement component includes a mother ring wheel, the replacement component is used to drive the activated carbon in the plurality of nano-carbon cavities to replace through the mother ring wheel, a carbon measuring component is arranged inside the plurality of nano-carbon cavities, the carbon measuring component is used to detect the quality of the activated carbon placed inside the nano-carbon cavity, an exhaust pipe is fixedly installed on the top of the box body, and the exhaust pipe An exhaust device is provided inside the box, and the exhaust device is used to extract the gas generated in the beaker. An airflow pipe is fixedly installed on the top of the box, and the exhaust pipe is placed directly above the airflow pipe. The central axes of the two in the vertical direction are in the same straight line. A pipe orifice block is fixedly installed on the bottom of the airflow pipe, and the top of the airflow pipe is placed inside the box. An air-blocking component is provided outside the top of the airflow pipe. The air-blocking component is used to block the gas in the airflow pipe when the replacement component drives multiple activated carbons in the nano-carbon chamber to be replaced. A counting component is provided outside the exhaust pipe, and the counting component is used to count the number of times the replacement component drives the activated carbon in the nano-carbon chamber to be replaced;

[0007] Before use, place the nozzle block on one side of the beaker. When the experimenter uses the beaker to conduct experiments, the exhaust device in the exhaust pipe performs the exhaust operation, and the gas generated in the beaker will enter from the nozzle block through the airflow tube into the inside of the box, and finally enter the exhaust pipe through the nano-carbon chamber. When the gas passes through the nano-carbon chamber, the activated carbon arranged in the nano-carbon chamber filters the gas, and then the purified gas flows out from the top of the exhaust pipe, thereby achieving the function of purifying the gas. When the activated carbon is filtering the gas, the carbon measuring component in the nano-carbon chamber continuously detects the quality of the activated carbon. When the quality of the activated carbon reaches a certain value, it proves that the activated carbon has lost its gas filtering effect, and the carbon measuring component will control The replacement component drives multiple nano-carbon cavities to interchange positions through the mother ring wheel, thereby replacing unusable activated carbon, which plays the role of automatic replacement of activated carbon. During the replacement, the replacement component drives the air-blocking component to block the gas in the airflow pipe to prevent the gas from being pumped by the exhaust device in the exhaust pipe and flowing out from the top of the exhaust pipe without being treated when the replacement component replaces the activated carbon, thereby affecting the air filtering effect. When the replacement component replaces the activated carbon, the replacement component also drives the counting component to count the number of times the replacement component drives the activated carbon in the nano-carbon chamber to be replaced, so as to check the replacement status of the activated carbon in multiple nano-carbon cavities, thereby playing the role of counting and checking the replacement status of the activated carbon.

[0008] Preferably, the replacement component also includes an annular gear disk, which is slidably connected to the inner wall of the box body, a motor is fixedly installed on the top of the mother ring wheel, and sub-ring wheels are fixedly installed on the outside of the multiple carbon-containing cavities, and the multiple carbon-containing cavities are placed between the annular gear disk and the mother ring wheel. The teeth on the multiple sub-ring wheels can mesh with the teeth in the mother ring wheel and the annular gear disk. When the carbon measuring component detects that the activated carbon needs to be replaced, the carbon measuring component controls the motor to operate, and the operation of the motor drives the mother ring wheel to rotate. When the mother ring wheel rotates, it drives the multiple carbon-containing cavities to move in the annular gear disk, thereby realizing position alternation and completing the position replacement of the carbon-containing cavities, thereby playing a role in automatically replacing the activated carbon.

[0009] Preferably, the carbon measuring component includes a carbon placing plate, which is slidably connected to the inner wall of the box body, and a plurality of displacement shafts are fixedly installed on the bottom of the carbon placing plate, and a ring plate is fixedly installed on the inner wall of the bottom end of the carbon containing cavity, and the outer walls of the plurality of displacement shafts are all slidably connected to the inner wall of the ring plate, and a plurality of reset springs are arranged between the carbon placing plate and the ring plate, and the plurality of reset springs are respectively arranged on the outside of the plurality of displacement shafts, and a control button is symmetrically fixedly installed on the top of the ring plate. When the activated carbon is filtering air, the weight of the activated carbon will continue to increase, and the activated carbon will press the carbon placing plate to squeeze the reset spring downward. When the carbon placing plate squeezes the reset spring downward and contacts the control button, it means that the activated carbon has lost its air filtering effect, and then the control button can control the motor to operate, thereby driving the replacement component to replace the activated carbon, thereby detecting whether the activated carbon can continue to be used.

[0010] Preferably, the counting assembly includes a counter, which is fixedly mounted on the top of the box body, and the counter is placed outside the exhaust pipe. The outer wall of the bottom end of the exhaust pipe is slidably connected to a fitting tube sheet, and a plurality of shaft rods are fixedly mounted on the top of the fitting tube sheet, and the outer walls of the plurality of shaft rods are slidably connected to the inner wall of the box body. A plurality of return tube springs are arranged between the top of the inner wall of the box body and the top of the shaft rod, and the plurality of return tube springs are respectively placed outside the plurality of shaft rods, and a counting button is symmetrically fixedly mounted on the top of the inner wall of the solid object rack, an extrusion opening is provided on the outer wall of the bottom end of the fitting tube sheet, and a push opening is provided on the inner wall of the bottom end of the fitting tube sheet, and the inner wall of the fitting tube sheet can be clamped with the top ends of the plurality of carbon-absorbing cavities, and the top ends of the plurality of carbon-absorbing cavities can be clamped with the extrusion opening. The outer wall is slidably connected. When the motor drives the carbon-containing cavity to rotate, the carbon-containing cavity will squeeze the push port on the bottom end of the fitting tube plate to move, thereby pushing the fitting tube plate upward. When the fitting tube plate moves upward, the top of the fitting tube plate squeezes the return tube spring to move upward. When the top of the fitting tube plate contacts the counting button, the counter calculates the number of times the counting button is pressed, thereby playing a counting role. When the carbon-containing cavity moves out of the fitting tube plate, the motor drives the next carbon-containing cavity to move, and the next carbon-containing cavity will push the squeeze port to enter the fitting tube plate. Through the elastic force of the return tube spring, the bottom end of the fitting tube plate will be stuck to the top of a new carbon-containing cavity, thereby forming a filter air flow cavity.

[0011] Preferably, a digital display is fixedly mounted on the top of the box, and a transmission line is fixedly connected between the counter and the digital display. When the counter finishes counting the number of times the counting button is pressed, the counter transmits the calculated value to the digital display through the transmission line for display, so that the experimenter can observe the replacement of the activated carbon.

[0012] Preferably, the air-sealing component includes a pressure plate, which is fixedly mounted on the bottom of the mother ring wheel, and a plurality of rectangular pressure openings are opened on the inner wall of the bottom end of the pressure plate, and the number of the plurality of rectangular pressure openings is consistent with the number of the plurality of carbon-receiving cavities. A circular ring is slidably connected to the outer wall of the top end of the airflow tube, and an air-blocking plate is fixedly mounted on the inner wall of the circular ring. A plurality of round rods are fixedly mounted on the bottom end of the circular ring, and the outer walls of the plurality of round rods are slidably connected to the inner wall of the airflow tube. A plurality of return disk springs are arranged between the outer wall of the airflow tube and the bottom end of the circular ring, and the plurality of return disk springs are respectively placed on the outside of the plurality of round rods. A pressure rod is fixedly mounted on the outer wall of the circular ring, and the top of the circular ring can be slidably connected to the bottom of the plurality of carbon-receiving cavities, and one end of the pressure rod can be clamped with the inner walls of the plurality of rectangular pressure openings, and one end of the pressure rod is an inclined sliding surface, and the top of one end of the pressure rod is slidably connected to the bottom of the rectangular pressure opening. When the motor drives the mother ring wheel During rotation, the motor also drives the pressure plate to rotate through the mother ring wheel. When the pressure plate rotates, the bottom of the pressure plate squeezes the pressure rod to rotate. When the pressure rod is compressed, the pressure rod drives the circular ring to move downward. When the circular ring moves downward, it drives the air blocking plate inside the circular ring to move downward, so that the air blocking plate blocks the top of the airflow tube, so that when the carbon-containing chamber is replaced, the gas is prevented from flowing out of the top of the airflow tube along the flow tube, affecting the air filtering effect. When the carbon-containing chamber is replaced, the pressure rod pushes the circular ring upward to open the air blocking plate from the top of the airflow tube, and one end of the pressure rod will be re-inserted into another rectangular pressure port. At this time, the airflow tube, the circular ring, the carbon-containing chamber, the rectangular pressure port and the exhaust pipe will form a complete gas purification flow chamber, which cooperates with the activated carbon under the pumping of the vacuum device to filter and purify the gas and play a role in blocking the outflow of gas.

[0013] Preferably, an adjusting device is fixedly installed at the bottom of the solid object rack, and the adjusting device is placed outside the top end of the airflow tube. The adjusting device is used to drive the airflow tube to adjust its position. When the nozzle block is not located above the side of the beaker, the airflow tube is driven to move by the adjusting device, thereby driving the nozzle block to adjust its position on one side of the beaker, thereby adjusting the position of the nozzle block.

[0014] Preferably, a pull handle is fixedly installed on the outer wall of the annular gear disk, a guide rail is fixedly installed on the inner wall of the box body, a slider is slidably connected to the inner wall of the guide rail, the top of the slider is rotatably connected to the bottom of the pressure plate, and the top outer wall of the box body is symmetrically rotatably connected to the door panel. When the display shows that multiple activated carbons have been used up, by pulling the pull handle, the slider will slide in the guide rail, and the multiple carbon cavities can be pulled from one side of the box body to the other side of the box body, and the door panel can be opened. The activated carbon in the multiple carbon cavities can be taken out one by one, and new activated carbon can be put in again to complete the filling of the activated carbon, thereby facilitating the filling of activated carbon.

[0015] Preferably, a clamping shaft is provided on the inner wall of one end of the guide rail, and the outer wall of the clamping shaft is slidably connected to the inner wall of the guide rail. A pressure spring is provided between the bottom of the clamping shaft and the inner wall of the guide rail, and the top of the clamping shaft can be clamped with the inner wall of the slider. When the activated carbon is filled, the handle is then pushed inward, and the slider will move inward in the guide rail. When the slider moves one end of the guide rail, the bottom of the slider squeezes the clamping shaft downward. When the slider cannot move in the guide rail, the clamping shaft will be driven by the elastic force of the pressure spring and will be clamped into the interior of the slider, thereby completing the placement of multiple carbon receiving cavities.

[0016] Preferably, a frame plate is fixedly installed on one side of the inner wall of the box body, and a fixed ring block is symmetrically slidably connected to the outer wall of the frame plate, and a limited sliding rod is symmetrically fixedly installed on the inner wall of the frame plate, and the inner walls of the two fixed ring blocks are respectively slidably connected to the outer walls of the two limited sliding rods, and a fixed ring spring is arranged between the outer walls of the two fixed ring blocks and the inner wall of the frame plate, and the two fixed ring springs are respectively placed on the outside of the two limited sliding rods, and one end of the two fixed ring blocks can be clamped with the outer wall of the ring gear disk. When the slider moves in the guide rail, the ring gear disk also moves in the box body. When the slider moves to one end of the guide rail, the ring gear disk squeezes the two fixed ring blocks to move on the frame plate. When the clamping shaft is driven by the elastic force of the pressure-bearing spring to clamp into the interior of the slider, the outer wall of the ring gear disk contacts the inner wall of the frame plate, and the two fixed ring blocks can fix the ring gear disk under the push of the fixed ring spring, thereby improving the stability of multiple carbon-carrying cavities when moving.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. A laboratory air purification device described in the present invention continuously detects the weight of activated carbon through a carbon measuring component. When the weight of the activated carbon reaches a certain value, the carbon measuring component controls the replacement component to drive multiple carbon chambers to interchange positions through the mother ring wheel, thereby replacing the activated carbon. At the same time, the replacement component drives the air-blocking component to block the gas in the air flow pipe to prevent the gas from being pumped by the exhaust device in the exhaust pipe and flowing out from the top of the exhaust pipe without being treated when the replacement component replaces the activated carbon. The device has the advantages of automatically replacing activated carbon, measuring the use status of activated carbon and maintaining gas filtration function, and can continuously provide purified air for the laboratory to ensure the safety of experimenters and equipment.

[0019] 2. The laboratory air purification device described in the present invention, when the carbon measuring component detects that the activated carbon needs to be replaced, the carbon measuring component controls the motor to operate, and the operation of the motor drives the mother ring wheel to rotate. When the mother ring wheel rotates, it drives multiple carbon-containing cavities to index and move in the ring gear disk, thereby realizing position alternation and completing the position replacement of the carbon-containing cavities, thereby playing a role in automatically replacing the activated carbon.

[0020] 3. In a laboratory air purification device described in the present invention, the molecules adsorbed by activated carbon will increase the weight of the activated carbon. Therefore, when the activated carbon is filtering air, the weight of the activated carbon will continue to increase, and the activated carbon will press the carbon plate to squeeze the reset spring downward. When the carbon plate squeezes the reset spring downward and contacts the control button, it means that the activated carbon has lost its air filtering effect. Subsequently, the control button can control the motor to operate, thereby driving the replacement component to replace the activated carbon, thereby detecting the saturation of the activated carbon.

[0021] 4. The laboratory air purification device described in the present invention, when the motor drives the carbon chamber to rotate, the carbon chamber will squeeze the push port on the bottom end of the fitting tube plate to move, thereby pushing the fitting tube plate to move upward, when the fitting tube plate moves upward, the top end of the fitting tube plate squeezes the return tube spring to move upward, when the top end of the fitting tube plate contacts the counting button, the counter calculates the number of times the counting button is pressed, which plays a counting role, making it convenient for experimenters to check the replacement status of activated carbon.

[0022] 5. A laboratory air purification device described in the present invention, when the motor drives the mother ring wheel to rotate, the motor drives the pressure plate to rotate through the mother ring wheel, and the bottom of the pressure plate squeezes the pressure rod to rotate when the pressure rod is compressed, and when the pressure rod is compressed, the pressure rod drives the circular ring to move downward, and when the circular ring moves downward, it drives the air blocking plate inside the circular ring to move downward, so that the air blocking plate blocks the top of the airflow tube, thereby preventing the gas from flowing out of the top of the airflow tube along the flow when the carbon chamber is replaced, affecting the air filtering effect, thereby playing a role in blocking the outflow of gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is the main figure of the present invention;

[0025] Figure 2 It is an overall diagram of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the mother ring wheel in the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the nanocarbon cavity in the present invention;

[0028] Figure 5 It is a structural schematic diagram of the pressure plate in the present invention;

[0029] Figure 6 It is a structural schematic diagram of the carbon plate in the middle of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the ring plate in the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the tube sheet in the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the fixed ring block in the present invention;

[0033] Fig.10 It is a structural schematic diagram of the compression rod in the present invention;

[0034] Fig.11 It is a structural schematic diagram of the clamping shaft in the present invention.

[0035] In the figure: 1, box body; 101, door panel; 2, display; 201, transmission line; 3, nozzle block; 4, adjustment device; 401, air flow pipe; 5, guide rail; 501, clamping shaft; 502, pressure spring; 503, slider; 6, ring gear; 601, pull handle; 602, motor; 603, mother ring wheel; 7, carbon receiving chamber; 701, child ring wheel; 702, carbon plate; 703, ring plate; 704, shift shaft; 705, reset spring; 706, control button; 8 , solid frame; 9, exhaust pipe; 10, counter; 1001, fitting tube plate; 1002, extrusion port; 1003, push port; 1004, counting button; 1005, return tube spring; 1006, shaft rod; 11, pressure plate; 1101, moment pressure port; 12, fixed ring block; 1201, limited slide rod; 1202, fixed ring spring; 1203, frame plate; 13, circular ring; 1301, pressure rod; 1302, air blocking disk; 1303, return disk spring; 1304, round rod. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] like Figures 1 to 11As shown, a laboratory air purification device described in an embodiment of the present invention includes a solid rack 8, which is fixedly installed on the experimental desktop. A box body 1 is fixedly installed on the top of the solid rack 8. A plurality of nanocarbon cavities 7 are arranged inside the box body 1. The nanocarbon cavities 7 are used to place activated carbon. A replacement component is arranged between the plurality of nanocarbon cavities 7. The replacement component includes a mother ring wheel 603. The replacement component is used to drive the activated carbon in the plurality of nanocarbon cavities 7 to be replaced through the mother ring wheel 603. A carbon measuring component is arranged inside the plurality of nanocarbon cavities 7. The carbon measuring component is used to detect the quality of the activated carbon placed inside the nanocarbon cavity 7. An exhaust pipe 9 is fixedly installed on the top of the box body 1. An exhaust device is arranged inside the exhaust pipe 9. The box 1 is provided with a gas extraction device for extracting the gas generated in the beaker, an airflow tube 401 is fixedly installed on the top of the box 1, and the exhaust pipe 9 is placed directly above the airflow tube 401, and the central axes of the two in the vertical direction are in the same straight line, and a nozzle block 3 is fixedly installed on the bottom end of the airflow tube 401, and the top end of the airflow tube 401 is placed inside the box 1, and an air-blocking component is arranged outside the top end of the airflow tube 401, and the air-blocking component is used to block the gas in the airflow tube 401 when the replacement component drives the activated carbon in multiple carbon chambers 7 to be replaced, and the exhaust pipe 9 is provided outside the counting component, and the counting component is used to count the number of times the replacement component drives the activated carbon in the carbon chamber 7 to be replaced;

[0038] Since activated carbon has a certain service life, it needs to be frequently replaced to ensure the effect of air purification, which is troublesome. In addition, since the saturation of activated carbon is unknown during use, if the activated carbon is saturated during the experiment, it cannot filter the gas generated by the experiment, which is not conducive to air purification.

[0039] Before use, the nozzle block 3 is placed on one side of the beaker. When the experimenter uses the beaker to conduct experiments, the exhaust device in the exhaust pipe 9 performs the exhaust operation, and the gas generated in the beaker will enter from the nozzle block 3 through the airflow pipe 401 into the interior of the box body 1, and finally enter the exhaust pipe 9 through the carbon chamber 7. When the gas passes through the carbon chamber 7, the activated carbon arranged in the carbon chamber 7 filters the gas, and then the purified gas flows out from the top of the exhaust pipe 9, thereby achieving the function of purifying the gas. When the activated carbon is filtering the gas, the carbon measuring component in the carbon chamber 7 continuously detects the quality of the activated carbon. When the quality of the activated carbon reaches a certain value, it proves that the activated carbon has lost its filtering effect. The carbon measuring component will control the replacement component to drive multiple carbon chambers 7 to interchange positions through the mother ring wheel 603, thereby replacing the unusable activated carbon, thereby playing the role of automatically replacing the activated carbon, and solving the problem in the prior art that the activated carbon has a certain service life and is used to ensure the effect of purifying the gas. The problem of frequent replacement of activated carbon is solved. During the replacement, the replacement component drives the air-sealing component to block the gas in the airflow tube 401 to prevent the gas from being pumped by the exhaust device in the exhaust pipe 9 and flowing out from the top of the exhaust pipe 9 without being treated when the replacement component replaces the activated carbon, thereby affecting the gas filtering effect. This solves the problem that some experiments in the prior art cannot be terminated once the experiment is carried out, and the escaping gas cannot be well treated, which is not conducive to air purification and is also very likely to pose a threat to the safety of the experimenters. When the replacement component replaces the activated carbon, the replacement component also drives the counting component to count the number of times the replacement component drives the activated carbon in the carbon chamber 7 to replace it, so that the activated carbon replacement status in multiple carbon chambers 7 can be checked, which plays a role in counting and checking the activated carbon replacement status. It should be noted that the exhaust device in the exhaust pipe 9 is a prior art, so it is only stated in the technical solution but not described. The exhaust device can be a miniature vacuum pump, an electric vacuum pump, etc.

[0040] like Figures 3 to 5 As shown, the replacement component also includes a ring gear disk 6, which is slidably connected to the inner wall of the box body 1, a motor 602 is fixedly installed on the top of the mother ring wheel 603, and sub-ring wheels 701 are fixedly installed on the outside of multiple carbon-absorbing chambers 7, and multiple carbon-absorbing chambers 7 are placed between the ring gear disk 6 and the mother ring wheel 603, and the teeth on the multiple sub-ring wheels 701 can mesh with the teeth in the mother ring wheel 603 and the ring gear disk 6;

[0041] When the carbon measuring component detects that the activated carbon needs to be replaced, the carbon measuring component controls the motor 602 to operate. When the motor 602 operates, it drives the mother ring wheel 603 to rotate. When the mother ring wheel 603 rotates, it drives multiple carbon-containing cavities 7 to move in the ring gear 6, thereby realizing position alternation and completing the position replacement of the carbon-containing cavities 7, thereby playing the role of automatically replacing the activated carbon. It should be noted here that the number of carbon-containing cavities 7 can be determined according to the size of the carbon-containing cavities 7.

[0042] like Figure 6 to Figure 7 As shown, the carbon measuring assembly includes a carbon placing plate 702, which is slidably connected to the inner wall of the box body 1, and a plurality of shift shafts 704 are fixedly installed on the bottom of the carbon placing plate 702. A ring plate 703 is fixedly installed on the inner wall of the bottom end of the carbon receiving chamber 7, and the outer walls of the plurality of shift shafts 704 are all slidably connected to the inner wall of the ring plate 703. A plurality of reset springs 705 are arranged between the carbon placing plate 702 and the ring plate 703, and the plurality of reset springs 705 are respectively arranged on the outside of the plurality of shift shafts 704, and a control button 706 is symmetrically fixedly installed on the top of the ring plate 703;

[0043] Since activated carbon has a developed pore structure, it can adsorb some organic matter, gas and other substances in the air or water. These adsorbed molecules will increase the weight of the activated carbon. Therefore, when the activated carbon is filtering air, the weight of the activated carbon will continue to increase, and the activated carbon will press the carbon plate 702 to squeeze the return spring 705 downward. When the carbon plate 702 squeezes the return spring 705 downward and contacts the control button 706, it means that the activated carbon has lost its air filtering effect. Subsequently, the control button 706 can control the motor 602 to operate, thereby driving the replacement component to replace the activated carbon, thereby detecting whether the activated carbon can continue to be used.

[0044] like Figures 6 to 8 As shown, the counting assembly includes a counter 10, which is fixedly mounted on the top of the box body 1, and the counter 10 is placed outside the exhaust pipe 9. The outer wall of the bottom end of the exhaust pipe 9 is slidably connected with a fitting tube sheet 1001, and a plurality of shafts 1006 are fixedly mounted on the top of the fitting tube sheet 1001. The outer walls of the plurality of shafts 1006 are all slidably connected with the inner wall of the box body 1, and a plurality of return springs 1006 are arranged between the top of the inner wall of the box body 1 and the top of the shaft 1006. 5. Multiple return springs 1005 are respectively placed outside multiple shafts 1006. Counting buttons 1004 are symmetrically fixedly installed on the top of the inner wall of the solid frame 8. An extrusion opening 1002 is provided on the outer wall of the bottom end of the tube sheet 1001. A push opening 1003 is provided on the inner wall of the bottom end of the tube sheet 1001. The inner wall of the tube sheet 1001 can be clamped with the top ends of multiple carbon-containing cavities 7. The top ends of multiple carbon-containing cavities 7 can be slidably connected with the outer wall of the extrusion opening 1002.

[0045] When the motor 602 drives the carbon chamber 7 to rotate, the carbon chamber 7 will squeeze and push the push port 1003 on the bottom of the fitting tube plate 1001 to move, thereby pushing the fitting tube plate 1001 to move upward. When the fitting tube plate 1001 moves upward, the top of the fitting tube plate 1001 squeezes the return tube spring 1005 to move upward. When the top of the fitting tube plate 1001 contacts the counting button 1004, the counter 10 counts the number of times the counting button 1004 is pressed, which plays a counting role. When the carbon chamber 7 moves out of the fitting tube sheet 1001, the motor 602 drives the next carbon chamber 7 to move, and the next carbon chamber 7 will push the extrusion opening 1002 to enter the fitting tube sheet 1001. Through the elastic force of the return tube spring 1005, the bottom end of the fitting tube sheet 1001 will be stuck to the top of a new carbon chamber 7, thereby forming a filter air flow chamber. It should be noted here that a sealing ring should be provided at the top of the carbon chamber 7, and the extrusion opening 1002 and the push opening 1003 are both inclined sliding openings.

[0046] like Figures 1 to 4 As shown, a digital display 2 is fixedly installed on the top of the box 1, and a transmission line 201 is fixedly connected between the counter 10 and the digital display 2;

[0047] When the counter 10 finishes counting the number of times the counting button 1004 is pressed, the counter 10 transmits the calculated value to the display 2 through the transmission line 201 for display, so that the experimenter can view the replacement status of the activated carbon.

[0048] like Figures 9 and 10 As shown, the air-blocking component includes a pressure plate 11, which is fixedly installed at the bottom of the mother ring wheel 603. The inner wall of the bottom end of the pressure plate 11 is provided with a plurality of rectangular pressure openings 1101, and the number of the plurality of rectangular pressure openings 1101 is consistent with the number of the plurality of carbon-containing cavities 7. The top outer wall of the airflow tube 401 is slidably connected with a circular ring 13, and an air-blocking plate 1302 is fixedly installed on the inner wall of the circular ring 13. A plurality of round rods 1304 are fixedly installed at the bottom end of the circular ring 13, and the outer walls of the plurality of round rods 1304 are all slidably connected with the inner wall of the airflow tube 401. A plurality of return springs 1303 are arranged between the outer wall of 401 and the bottom end of the circular ring 13, and the plurality of return springs 1303 are respectively placed outside the plurality of circular rods 1304, and a pressure rod 1301 is fixedly installed on the outer wall of the circular ring 13, and the top of the circular ring 13 can be slidably connected with the bottom of the plurality of carbon nanocavities 7, and one end of the pressure rod 1301 can be clamped with the inner wall of the plurality of moment pressure ports 1101, and one end of the pressure rod 1301 is an inclined sliding surface, and the top of one end of the pressure rod 1301 is slidably connected with the bottom of the moment pressure port 1101;

[0049] When the motor 602 drives the mother ring wheel 603 to rotate, the motor 602 also drives the pressure plate 11 to rotate through the mother ring wheel 603. When the pressure plate 11 rotates, the bottom of the moment pressure port 1101 squeezes the pressure rod 1301 to rotate. When the pressure rod 1301 is compressed, the pressure rod 1301 drives the ring 13 to move downward. When the ring 13 moves downward, it drives the gas blocking plate 1302 in the ring 13 to move downward, so that the gas blocking plate 1302 blocks the top of the airflow tube 401, so that when the carbon chamber 7 is replaced, the gas is prevented from flowing out of the top of the airflow tube 401, affecting the air filtering effect. When the carbon-containing chamber 7 is replaced, the pressure rod 1301 pushes the ring 13 upward to open the gas blocking plate 1302 from the top of the airflow tube 401, and one end of the pressure rod 1301 will be re-inserted into another rectangular pressure port 1101. At this time, the airflow tube 401, the ring 13, the carbon-containing chamber 7, the rectangular pressure port 1101 and the exhaust pipe 9 will form a complete gas purification flow chamber, which will work with the activated carbon under the pumping of the vacuum device to filter and purify the gas and play a role in blocking the outflow of gas. It should be noted that a sealing ring is provided at the top of the ring 13.

[0050] like Figure 1 to Figure 2 As shown, an adjusting device 4 is fixedly installed at the bottom of the solid frame 8, and the adjusting device 4 is placed outside the top of the airflow tube 401. The adjusting device 4 is used to drive the airflow tube 401 to adjust its position;

[0051] When the nozzle block 3 is not located above the side of the beaker, the airflow tube 401 is moved by the adjusting device 4, thereby driving the nozzle block 3 to adjust its position on one side of the beaker, thereby adjusting the position of the nozzle block 3. It should be noted that an adjusting mechanism is provided inside the adjusting device 4, and the adjusting mechanism is used to drive the nozzle block 3 to move up and down on one side of the beaker, thereby adjusting the position between the nozzle block 3 and the beaker.

[0052] like Figures 1 to 10 As shown, a handle 601 is fixedly installed on the outer wall of the ring gear plate 6, a guide rail 5 is fixedly installed on the inner wall of the box body 1, a slider 503 is slidably connected to the inner wall of the guide rail 5, the top of the slider 503 is rotatably connected to the bottom of the pressure plate 11, and the top outer wall of the box body 1 is symmetrically rotatably connected to the door panel 101;

[0053] When the display device 2 shows that multiple activated carbons have been used up, by pulling the handle 601, the slider 503 will slide in the guide rail 5, and the multiple carbon chambers 7 can be pulled from one side of the box body 1 to the other side of the box body 1, and the door panel 101 is opened. The activated carbons in the multiple carbon chambers 7 are taken out one by one, and new activated carbon is put in again, so that the filling of the activated carbon can be completed, which facilitates the filling of the activated carbon.

[0054] like Figure 10 to Figure 11As shown, a clamping shaft 501 is provided on the inner wall of one end of the guide rail 5, the outer wall of the clamping shaft 501 is slidably connected to the inner wall of the guide rail 5, a pressure spring 502 is provided between the bottom of the clamping shaft 501 and the inner wall of the guide rail 5, and the top of the clamping shaft 501 can be clamped with the inner wall of the slider 503;

[0055] When the activated carbon is fully filled, the handle 601 is pushed inward, and the slider 503 moves inward in the guide rail 5. When the slider 503 moves one end of the guide rail 5, the bottom of the slider 503 squeezes the clamping shaft 501 downward. When the slider 503 cannot move in the guide rail 5, the clamping shaft 501 is driven by the elastic force of the pressure spring 502 and is inserted into the interior of the slider 503, thereby completing the placement of multiple carbon-containing cavities 7.

[0056] like Figures 3 to 9 As shown, a frame plate 1203 is fixedly installed on one side of the inner wall of the box body 1, and a fixed ring block 12 is symmetrically slidably connected to the outer wall of the frame plate 1203. A limited sliding rod 1201 is symmetrically fixedly installed on the inner wall of the frame plate 1203. The inner walls of the two fixed ring blocks 12 are respectively slidably connected to the outer walls of the two limited sliding rods 1201. Fixed ring springs 1202 are arranged between the outer walls of the two fixed ring blocks 12 and the inner wall of the frame plate 1203. The two fixed ring springs 1202 are respectively placed outside the two limited sliding rods 1201, and one end of the two fixed ring blocks 12 can be clamped with the outer wall of the annular toothed disc 6.

[0057] When the slider 503 moves in the guide rail 5, the annular gear disk 6 also moves in the box body 1. When the slider 503 moves to one end of the guide rail 5, the annular gear disk 6 squeezes the two fixed ring blocks 12 and moves on the frame plate 1203. When the clamping shaft 501 is driven by the elastic force of the pressure spring 502 and is inserted into the interior of the slider 503, the outer wall of the annular gear disk 6 contacts the inner wall of the frame plate 1203. The two fixed ring blocks 12 can fix the annular gear disk 6 under the push of the fixed ring spring 1202, thereby improving the stability of the multiple carbon-containing cavities 7 when moving.

[0058] Working principle: Place the nozzle block 3 on one side of the beaker before use. When the experimenter uses the beaker to conduct experiments, the exhaust device in the exhaust pipe 9 performs the exhaust operation, and the gas generated in the beaker will enter from the nozzle block 3 through the airflow pipe 401 into the interior of the box 1, and finally enter the exhaust pipe 9 through the nano-carbon chamber 7. When the gas passes through the nano-carbon chamber 7, the activated carbon arranged in the nano-carbon chamber 7 filters the gas, and then the purified gas flows out from the top of the exhaust pipe 9, thereby achieving the function of purifying the gas. When the activated carbon is filtering the gas, the carbon measuring component in the nano-carbon chamber 7 continuously detects the quality of the activated carbon. When the quality of the activated carbon reaches a certain value, it proves that the activated carbon has lost its gas filtering effect, and the carbon measuring component The component will control the replacement component to drive multiple carbon chambers 7 to interchange positions through the mother ring wheel 603, so as to replace the unusable activated carbon, and play the role of automatic replacement of activated carbon. At the same time, the replacement component drives the air-blocking component to block the gas in the airflow tube 401, to prevent the gas from being pumped by the exhaust device in the exhaust pipe 9 when the replacement component replaces the activated carbon and flowing out from the top of the exhaust pipe 9 without being processed, thereby affecting the air filtering effect. When the replacement component replaces the activated carbon, the replacement component also drives the counting component to count the number of times the replacement component drives the replacement component to replace the activated carbon in the carbon chamber 7, so as to check the replacement of activated carbon in multiple carbon chambers 7, and play the role of counting and checking the replacement of activated carbon.

[0059] When the carbon measuring component detects that the activated carbon needs to be replaced, the carbon measuring component controls the motor 602 to operate, and the motor 602 drives the mother ring wheel 603 to rotate when the motor 602 operates. When the mother ring wheel 603 rotates, it drives the multiple carbon receiving chambers 7 to index and move in the ring gear 6, thereby realizing position alternation, completing the position replacement of the carbon receiving chamber 7, and playing the role of automatically replacing the activated carbon;

[0060] When the activated carbon is filtering air, its weight will continue to increase, and the activated carbon will press the carbon plate 702 to squeeze the return spring 705 downward. When the carbon plate 702 squeezes the return spring 705 downward and contacts the control button 706, it means that the activated carbon has lost its filtering effect. Then the control button 706 can control the motor 602 to operate, thereby driving the replacement component to replace the activated carbon, which plays the role of detecting whether the activated carbon can continue to be used.

[0061] When the motor 602 drives the carbon-containing chamber 7 to rotate, the carbon-containing chamber 7 will squeeze the push port 1003 on the bottom end of the fitting tube plate 1001 to move, thereby pushing the fitting tube plate 1001 to move upward. When the fitting tube plate 1001 moves upward, the top of the fitting tube plate 1001 squeezes the return tube spring 1005 to move upward. When the top of the fitting tube plate 1001 contacts the counting button 1004, the counter 10 calculates the number of times the counting button 1004 is pressed, which plays a counting role. When the carbon-containing chamber 7 moves out of the fitting tube plate 1001, the motor 602 drives the next carbon-containing chamber 7 to move, and the next carbon-containing chamber 7 will push the squeeze port 1002 to enter the fitting tube plate 1001. The bottom end of the fitting tube plate 1001 will be stuck to the top of a new carbon-containing chamber 7 through the elastic force of the return tube spring 1005, thereby forming a filter air flow chamber.

[0062] When the counter 10 finishes counting the number of times the counting button 1004 is pressed, the counter 10 transmits the calculated value to the display 2 through the transmission line 201 for display, so that the experimenter can view the replacement of the activated carbon.

[0063] When the motor 602 drives the mother ring wheel 603 to rotate, the motor 602 also drives the pressure plate 11 to rotate through the mother ring wheel 603. When the pressure plate 11 rotates, the bottom of the pressure plate 11 squeezes the pressure rod 1301 to rotate. When the pressure rod 1301 is compressed, the pressure rod 1301 drives the ring 13 to move downward. When the ring 13 moves downward, it drives the gas blocking plate 1302 in the ring 13 to move downward, so that the gas blocking plate 1302 blocks the top of the airflow tube 401, so that when the carbon chamber 7 is replaced, the gas is prevented from flowing along the top of the airflow tube 401. When the carbon chamber 7 is replaced, the pressure rod 1301 pushes the ring 13 upward, so that the gas blocking plate 1302 is opened from the top of the air flow tube 401, and one end of the pressure rod 1301 is re-inserted into another rectangular pressure port 1101. At this time, the air flow tube 401, the ring 13, the carbon chamber 7, the rectangular pressure port 1101 and the exhaust pipe 9 form a complete gas purification flow chamber, which works with the activated carbon under the pumping of the exhaust device, thereby filtering and purifying the gas and blocking the outflow of the gas.

[0064] When the nozzle block 3 is not located above the side of the beaker, the regulating device 4 drives the airflow tube 401 to move, thereby driving the nozzle block 3 to adjust its position on one side of the beaker, thereby adjusting the position of the nozzle block 3;

[0065] When the display 2 shows that the multiple activated carbons have been used up, by pulling the handle 601, the slider 503 will slide in the guide rail 5, and the multiple carbon chambers 7 can be pulled from one side of the box body 1 to the other side of the box body 1, and the door panel 101 is opened, and the activated carbons in the multiple carbon chambers 7 are taken out in turn, and new activated carbons are put in again, so that the filling of the activated carbon can be completed, which plays a role in facilitating the filling of the activated carbon;

[0066] When the activated carbon is fully filled, the handle 601 is then pushed inward, and the slider 503 moves inward in the guide rail 5. When the slider 503 moves one end of the guide rail 5, the bottom of the slider 503 presses the clamping shaft 501 downward. When the slider 503 cannot move in the guide rail 5, the clamping shaft 501 is driven by the elastic force of the pressure spring 502 to be clamped into the inside of the slider 503, thereby completing the placement of multiple carbon receiving chambers 7.

[0067] When the slider 503 moves in the guide rail 5, the annular gear disk 6 also moves in the box body 1. When the slider 503 moves to one end of the guide rail 5, the annular gear disk 6 squeezes the two fixed ring blocks 12 and moves on the frame plate 1203. When the clamping shaft 501 is driven by the elastic force of the pressure spring 502 and is inserted into the interior of the slider 503, the outer wall of the annular gear disk 6 contacts the inner wall of the frame plate 1203. The two fixed ring blocks 12 can fix the annular gear disk 6 under the push of the fixed ring spring 1202, thereby improving the stability of the multiple carbon-containing cavities 7 when moving.

[0068] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A laboratory air purification device, characterized in that: The invention comprises a solid object frame (8), wherein the solid object frame (8) is fixedly installed on the experimental table, a box body (1) is fixedly installed on the top of the solid object frame (8), a plurality of nanocarbon chambers (7) are arranged inside the box body (1), the nanocarbon chambers (7) are used to place activated carbon, a replacement component is arranged between the plurality of nanocarbon chambers (7), the replacement component comprises a mother ring wheel (603), the replacement component is used to drive the activated carbon in the plurality of nanocarbon chambers (7) to be replaced through the mother ring wheel (603), a carbon measuring component is arranged inside the plurality of nanocarbon chambers (7), the carbon measuring component is used to detect the quality of the activated carbon placed inside the nanocarbon chamber (7), an exhaust pipe (9) is fixedly installed on the top of the box body (1), an exhaust device is arranged inside the exhaust pipe (9), and the exhaust device is used to The gas generated in the beaker is evacuated, an airflow tube (401) is fixedly installed on the top of the box (1), and the exhaust pipe (9) is placed directly above the airflow tube (401). The central axes of the two in the vertical direction are in the same straight line. A nozzle block (3) is fixedly installed on the bottom end of the airflow tube (401). The top end of the airflow tube (401) is placed inside the box (1). An air-blocking component is arranged outside the top end of the airflow tube (401). The air-blocking component is used to block the gas in the airflow tube (401) when the replacement component drives the activated carbon in multiple carbon chambers (7) to be replaced. The exhaust pipe (9) is provided outside the counting component. The counting component is used to count the number of times the replacement component drives the activated carbon in the carbon chamber (7) to be replaced.

2. A laboratory air purification device according to claim 1, characterized in that: The replacement component also includes a ring gear disk (6), the ring gear disk (6) is slidably connected to the inner wall of the box body (1), a motor (602) is fixedly installed on the top of the mother ring wheel (603), and sub-ring wheels (701) are fixedly installed outside the multiple carbon-absorbing cavities (7), and the multiple carbon-absorbing cavities (7) are all placed between the ring gear disk (6) and the mother ring wheel (603), and the teeth on the multiple sub-ring wheels (701) can mesh with the teeth in the mother ring wheel (603) and the ring gear disk (6).

3. A laboratory air purification device according to claim 2, characterized in that: The carbon measuring assembly comprises a carbon placing plate (702), which is slidably connected to the inner wall of the box body (1), a plurality of shift shafts (704) are fixedly installed on the bottom of the carbon placing plate (702), a ring plate (703) is fixedly installed on the inner wall of the bottom end of the carbon receiving chamber (7), the outer walls of the plurality of shift shafts (704) are all slidably connected to the inner wall of the ring plate (703), a plurality of reset springs (705) are arranged between the carbon placing plate (702) and the ring plate (703), the plurality of reset springs (705) are respectively arranged on the outside of the plurality of shift shafts (704), and a machine control button (706) is symmetrically fixedly installed on the top of the ring plate (703).

4. A laboratory air purification device according to claim 3, characterized in that: The counting assembly comprises a counter (10), the counter (10) being fixedly mounted on the top of the box body (1), the counter (10) being placed outside the exhaust pipe (9), the outer wall of the bottom end of the exhaust pipe (9) being slidably connected to a fitting tube sheet (1001), a plurality of shafts (1006) being fixedly mounted on the top of the fitting tube sheet (1001), the outer walls of the plurality of shafts (1006) being slidably connected to the inner wall of the box body (1), a plurality of return tube springs (1006) being arranged between the top of the inner wall of the box body (1) and the top of the shafts (1006) 5), multiple return tube springs (1005) are respectively placed outside multiple shafts (1006), counting buttons (1004) are symmetrically fixedly installed on the top of the inner wall of the solid frame (8), an extrusion opening (1002) is opened on the outer wall of the bottom end of the fitting tube plate (1001), and a push opening (1003) is opened on the inner wall of the bottom end of the fitting tube plate (1001), the inner wall of the fitting tube plate (1001) can be clamped with the top ends of multiple carbon-containing cavities (7), and the top ends of multiple carbon-containing cavities (7) can be slidably connected with the outer wall of the extrusion opening (1002).

5. A laboratory air purification device according to claim 4, characterized in that: A digital display (2) is fixedly mounted on the top of the box body (1), and a transmission line (201) is fixedly connected between the counter (10) and the digital display (2).

6. A laboratory air purification device according to claim 5, characterized in that: The air-blocking component comprises a pressure plate (11), which is fixedly mounted on the bottom of the mother ring wheel (603), and a plurality of rectangular pressure openings (1101) are provided on the inner wall of the bottom end of the pressure plate (11), and the number of the plurality of rectangular pressure openings (1101) is consistent with the number of the plurality of carbon-containing cavities (7). A circular ring (13) is slidably connected to the outer wall of the top end of the airflow tube (401), and an air-blocking plate (1302) is fixedly mounted on the inner wall of the circular ring (13), and a plurality of round rods (1304) are fixedly mounted on the bottom end of the circular ring (13), and the outer walls of the plurality of round rods (1304) are all slidably connected to the inner wall of the airflow tube (401). A plurality of return springs (1303) are arranged between the outer wall of the annular ring (401) and the bottom end of the annular ring (13), and the plurality of return springs (1303) are respectively placed outside the plurality of round rods (1304). A pressure rod (1301) is fixedly installed on the outer wall of the annular ring (13), and the top of the annular ring (13) can be slidably connected with the bottom of the plurality of carbon nanocavities (7), and one end of the pressure rod (1301) can be clamped with the inner wall of the plurality of momentary pressure ports (1101), and one end of the pressure rod (1301) is an inclined sliding surface, and the top of one end of the pressure rod (1301) is slidably connected with the bottom of the momentary pressure port (1101).

7. A laboratory air purification device according to claim 6, characterized in that: An adjusting device (4) is fixedly mounted on the bottom of the solid object rack (8). The adjusting device (4) is placed outside the top end of the airflow tube (401). The adjusting device (4) is used to drive the airflow tube (401) to adjust its position.

8. A laboratory air purification device according to claim 7, characterized in that: A pull handle (601) is fixedly mounted on the outer wall of the annular gear plate (6), a guide rail (5) is fixedly mounted on the inner wall of the box body (1), a slider (503) is slidably connected to the inner wall of the guide rail (5), the top of the slider (503) is rotatably connected to the bottom of the pressure plate (11), and the top outer wall of the box body (1) is symmetrically rotatably connected to the door panel (101).

9. A laboratory air purification device according to claim 8, characterized in that: A clamping shaft (501) is provided on the inner wall of one end of the guide rail (5); the outer wall of the clamping shaft (501) is slidably connected to the inner wall of the guide rail (5); a pressure spring (502) is provided between the bottom of the clamping shaft (501) and the inner wall of the guide rail (5); and the top end of the clamping shaft (501) can be clamped with the inner wall of the slide block (503).

10. A laboratory air purification device according to claim 9, characterized in that: A frame plate (1203) is fixedly installed on one side of the inner wall of the box body (1), and a fixed ring block (12) is symmetrically slidably connected to the outer wall of the frame plate (1203). A limited sliding rod (1201) is symmetrically fixedly installed on the inner wall of the frame plate (1203). The inner walls of the two fixed ring blocks (12) are respectively slidably connected to the outer walls of the two limited sliding rods (1201). Fixed ring springs (1202) are arranged between the outer walls of the two fixed ring blocks (12) and the inner wall of the frame plate (1203). The two fixed ring springs (1202) are respectively placed outside the two limited sliding rods (1201), and one end of the two fixed ring blocks (12) can be clamped with the outer wall of the annular gear disk (6).

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