Intelligent reagent cabinet and use method thereof

Abstract

The invention relates to the technical field of reagent cabinets, and particularly discloses an intelligent reagent cabinet and a use method thereof.The intelligent reagent cabinet comprises a switch cabinet, the tail of the switch cabinet is fixedly connected with a ventilation pipe, the interior of the ventilation pipe is slidably connected with an adsorption plate, a plurality of lifting mechanisms are distributed in the switch cabinet, and reagent tanks are placed at the tops of the lifting mechanisms; an opening and closing assembly is connected in the switch cabinet, an elastic assembly is arranged in the lifting mechanism, an air pressure sensing assembly is arranged in the switch cabinet, an alarm assembly is arranged in the ventilation pipe, and an air blower is fixedly connected in the ventilation pipe. The pressure difference formed by pressure increase generated by overflowing of the volatile gas enables the sliding ring to move, then the opening and closing assembly is opened to communicate the inside and the outside, the volatile gas is sucked away through the air blower, and mixed explosion of different volatile gases is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of reagent cabinets, and more particularly to an intelligent reagent cabinet and a method for using the same. Background Art

[0002] Many chemical reagents are flammable and explosive. Intelligent reagent cabinets are equipped with temperature and humidity sensors and gas concentration monitoring devices, which can monitor the environment inside the cabinet in real time. When the temperature or gas concentration exceeds the safe range, the system will promptly issue an alarm and initiate ventilation, cooling and other safety measures to effectively reduce the risk of fire and explosion. By setting up permission management and identity recognition systems (such as fingerprint recognition, card recognition, etc.), only authorized personnel can open the reagent cabinet, which prevents the reagents from being misused or stolen by unrelated personnel and ensures the safety of the laboratory. Intelligent reagent cabinets can monitor the concentration of volatile gases in the cabinet in real time. When the concentration exceeds the standard, the purification device will automatically start to filter harmful gases and reduce the risk of operators inhaling harmful gases.

[0003] The Chinese patent with patent publication number CN211725802U discloses an intelligent ultraviolet sterilization wall-mounted reagent cabinet, including a reagent cabinet, wherein a pressure plate is installed at one end of the reagent cabinet, the pressure plate and the reagent cabinet are connected by a spring, a pull rod is installed at the upper end of the pressure plate, and three connecting columns are installed at the lower end of the pressure plate, a support plate is installed at one end of the pressure plate, and three limiting holes are provided on the upper end surface of the support plate, a fixing plate is installed at one end of the support plate, a third gear is installed on the inner side of the reagent cabinet, a second bevel gear is installed at one end of the third gear, a first bevel gear is installed on one side of one end of the second bevel gear, a second gear is installed on one side of the first bevel gear, a first gear is installed on one end of the second gear, and an electric rolling shutter door is installed on one side of the first gear, and racks are installed on the upper and lower ends of the third gear, which is convenient for installation and disassembly and has good sealing.

[0004] Currently, when volatile toxic agents are placed in a reagent cabinet, when the agents evaporate in the reagent cabinet and accumulate to a certain level, they mix with other drugs, which may cause danger. In addition, the intelligent reagent cabinet cannot obtain the remaining information of each reagent in time before the experiment, and cannot detect the lack of reagents in time. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an intelligent reagent cabinet and a method of using the same to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical solutions: an intelligent reagent cabinet and a method for using the same, comprising a switch cabinet, wherein a ventilation duct is fixedly connected to the rear end of the switch cabinet, an adsorption plate is slidably connected to the interior of the ventilation duct, a plurality of lifting mechanisms are distributed inside the switch cabinet, a reagent tank is placed on top of the lifting mechanisms, an opening and closing component is connected to the interior of the switch cabinet, an elastic component is provided inside the lifting mechanisms, an air pressure sensing component is provided inside the switch cabinet, an alarm component is provided inside the ventilation duct, a metering screen is fixed inside the switch cabinet, and a blower is fixedly connected to the interior of the ventilation duct; The air pressure sensing assembly includes a cylinder body, a sliding ring is slidably connected to the inside of the cylinder body, a protruding rod is provided at the center of the sliding ring, a second spring is provided between the sliding ring and the cylinder body, and a displacement sensor is fixedly connected to the bottom of the cylinder body; Furthermore, the switch cabinet includes a cabinet body, a cabinet door is slidably and sealedly connected to the cabinet opening, a plurality of vertical partitions and horizontal partitions are fixed inside the cabinet body, the vertical partitions and horizontal partitions divide the inner part of the cabinet body into a plurality of small blocks, the vertical partitions and horizontal partitions are not connected to the rear wall of the cabinet body, and the rear wall of the cabinet body is provided with a ventilation hole, which is through-connected to the ventilation pipe.

[0007] Furthermore, the ventilation pipe includes a pipe body, an upper opening is opened on the upper wall of the pipe body, a lower groove is opened on the bottom wall of the pipe body, the lower groove is opposite to the upper opening and has the same thickness as the adsorption plate, a spring cavity is opened at the bottom of the pipe body, a guide cavity is opened above the spring cavity, and a sliding hole is opened above the guide cavity, and the spring cavity, guide cavity and sliding hole are located in the middle of the lower groove.

[0008] The top of the lifting block is a bottom of the lifting block, and the bottom of the lifting block is a bottom of the lifting block, and the bottom of the lifting block is a bottom of the lifting block, and the top of the lifting block is a bottom of the lifting block.

[0009] Furthermore, the opening and closing assembly includes an oil cylinder, and the oil rod of the oil cylinder is fixedly connected to the opening and closing block.

[0010] Furthermore, the elastic component includes a bottom tube, the bottom of the bottom tube is fixed to the upper plate surface of the lower base plate, a support rod is slidably connected to the upper part of the interior of the bottom tube, and a first spring is connected between the support rod and the bottom tube.

[0011] Furthermore, the alarm component includes a support column, the periphery of the support column is fixedly connected to a sliding round block, the bottom of the support column is fixedly connected to a positioning block, the bottom of the support column is connected to a third spring, the third spring is located inside the spring cavity, the bottom of the spring cavity is fixedly connected to an alarm, and the alarm is located directly below the positioning block.

[0012] A method for using an intelligent reagent cabinet comprises the following steps: S1. Place the reagent tank on the upper base plate. The reagent tank presses the base plate down to a certain distance. The displacement sensor converts the value into the corresponding weight and displays it on the metering screen. S2. When the gas inside the reagent tank evaporates and the air pressure inside the switch cabinet increases to a certain level, the cylinder pushes the vent open, the blower inhales the volatile gas, and the adsorption plate begins to filter; S3. The adsorption weight of the adsorption plate continues to increase. After the adsorption plate presses the positioning block and touches the alarm, the adsorption plate is replaced.

[0013] Technical effects and advantages of the present invention: 8. By incorporating an opening and closing assembly, an air pressure sensor, and a blower, this invention utilizes the increased pressure generated by the escape of volatile gases to create a pressure differential that moves the sliding ring. This then opens the opening and closing assembly, allowing the inside and outside to communicate. The blower then draws away the volatile gases, preventing explosions from the mixing of different volatile gases.

[0014] 9. By providing a lifting mechanism and elastic assembly, the present invention facilitates utilizing the weight change of the reagent inside the reagent tank to cause the upper base plate to descend a corresponding distance under the support of the first spring. This ensures that the weight of the reagent inside the reagent tank corresponds to the height of the upper base plate, thereby enabling real-time display of the reagent weight inside the reagent tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention after removing the cabinet door; Figure 3 It is a cross-sectional view of the overall structure of the present invention; Figure 4 is a sectional isometric view of the present invention; Figure 5 This is a schematic diagram of the ventilation pipe structure of the present invention; Figure 6 For the present invention Figure 3 A schematic diagram of the structure at point a is enlarged; Figure 7 For the present invention Figure 3 The enlarged structural diagram at point b; Figure 8 For the present invention Figure 3 The enlarged structural diagram at c; Figure 9 It is a schematic structural diagram of the lifting mechanism of the present invention.

[0016] The accompanying drawings are marked as follows: 1. switch cabinet; 101. cabinet body; 102. cabinet door; 103. vertical partition; 104. horizontal partition; 105. vent; 2. adsorption plate; 3. ventilation pipe; 301. pipe body; 302. upper opening; 303. lower slot; 304. spring cavity; 305. guide cavity; 306. sliding hole; 4. reagent tank; 5. lifting mechanism; 501. lower bottom plate; 502. lower slide plate; 503. lower sliding block; 504. connecting rod; 505. upper slide plate; 506. lower fixed block; 507. upper sliding block; 508. upper fixed block Fixed block; 509, upper base plate; 5010, displacement sensor; 6, opening and closing assembly; 601, oil cylinder; 602, opening and closing block; 7, elastic assembly; 701, bottom cylinder; 702, first spring; 703, support rod; 8, air pressure sensing assembly; 801, cylinder body; 802, second spring; 803, extension rod; 804, sliding ring; 805, displacement sensor; 9, alarm assembly; 901, support column; 902, sliding round block; 903, positioning block; 904, third spring; 905, alarm; 10, metering screen; 11, blower. DETAILED DESCRIPTION

[0017] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The intelligent reagent cabinet and its use method involved in the present invention are not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] Reference Figure 1 、 Figure 3 、 Figure 4 and Figure 7 The present invention provides an intelligent reagent cabinet and a method for using the same, comprising a switch cabinet 1, wherein a ventilation pipe 3 is fixedly connected to the rear end of the switch cabinet 1, an adsorption plate 2 is slidably connected to the interior of the ventilation pipe 3, a plurality of lifting mechanisms 5 are distributed inside the switch cabinet 1, a reagent tank 4 is placed on the top of the lifting mechanism 5, an opening and closing component 6 is connected to the interior of the switch cabinet 1, an elastic component 7 is provided inside the lifting mechanism 5, an air pressure sensing component 8 is provided inside the switch cabinet 1, an alarm component 9 is provided inside the ventilation pipe 3, a metering screen 10 is fixed inside the switch cabinet 1, and a blower 11 is fixedly connected to the interior of the ventilation pipe 3; The air pressure sensing assembly 8 includes a cylinder 801, a sliding ring 804 is slidably connected to the interior of the cylinder 801, a protruding rod 803 is provided at the center of the sliding ring 804, a second spring 802 is provided between the sliding ring 804 and the cylinder 801, and a displacement sensor 805 is fixedly connected to the bottom of the cylinder 801; In this embodiment, it should be specifically explained that the blower 11 is connected to an external motor, and the motor controls the rotation of the blower 11 .

[0019] The main difference between this embodiment and the prior art is that this embodiment uses the fluidity of the gas to filter the volatile gas, solving the problem that the volatile gas cannot be discharged in time when it accumulates to a certain level. Specifically, the opening and closing component 6, the air pressure sensing component 8, and the blower 11; The above structure is the main structure of this embodiment, which solves the problem that the weight of the reagent tank 4 cannot be weighed in time. The blower 11 is an existing structure, and the specific structure and connection method of the blower 11 are not described in detail in this embodiment.

[0020] Reference Figure 1-Figure 4 The switch cabinet 1 includes a cabinet body 101, and the cabinet opening of the cabinet body 101 is slidably and sealedly connected to a cabinet door 102. A number of vertical partitions 103 and horizontal partitions 104 are fixed inside the cabinet body 101. The vertical partitions 103 and horizontal partitions 104 divide the interior of the cabinet body 101 into several small blocks. The vertical partitions 103 and horizontal partitions 104 are not connected to the rear wall of the cabinet body 101. The rear wall of the cabinet body 101 is provided with a ventilator 105, and the ventilator 105 is connected to the ventilation pipe 3.

[0021] In this embodiment, it should be specifically explained that: when the air pressure inside the cabinet 101 rises to a certain level, the vent 105 and the ventilation pipe 3 are connected from being disconnected.

[0022] Reference Figure 1 、 Figure 3 and Figure 5 The ventilation pipe 3 includes a pipe body 301, an upper opening 302 is formed on the upper wall of the pipe body 301, and a lower groove 303 is formed on the bottom wall of the pipe body 301. The lower groove 303 is opposite to the upper opening 302 and has the same thickness as the adsorption plate 2. A spring cavity 304 is formed at the bottom of the pipe body 301, a guide cavity 305 is formed above the spring cavity 304, and a sliding hole 306 is formed above the guide cavity 305. The spring cavity 304, the guide cavity 305, and the sliding hole 306 are located in the middle of the lower groove 303.

[0023] In this embodiment, it should be specifically explained that: when the filtering effect of the adsorption plate 2 fails, the adsorption plate 2 can be taken out along the upper opening 302 and the upper opening 302 and then replaced with a new adsorption plate 2 along the upper opening 302 and the lower groove 303.

[0024] Reference Figure 2 、 Figure 3 、 Figure 4 and Figure 9 The lifting mechanism 5 includes a lower base plate 501, the upper surface of the lower base plate 501 is fixedly connected with a symmetrical lower slide groove plate 502, and a lower sliding block 503 is slidably connected between the lower slide groove plates 502, and the other end of the lower base plate 501 is fixedly connected with a lower fixed block 506. An upper base plate 509 is provided above the lower base plate 501, and the lower surface of the upper base plate 509 is fixedly connected with a symmetrical upper slide groove plate 505, and an upper sliding block 507 is slidably connected between the upper slide groove plates 505. The other end of the upper base plate 509 is fixedly connected with an upper fixed block 508, a connecting rod 504 is fixedly connected between the upper fixed block 508 and the lower sliding block 503, and a connecting rod 504 is also fixedly connected between the upper sliding block 507 and the lower fixed block 506. The upper surface of the lower base plate 501 is fixedly connected with a displacement sensor 5010, and the reagent tank 4 is located on the upper surface of the upper base plate 509.

[0025] In this embodiment, it needs to be specifically explained that: when the reagent tank 4 is placed on the upper base plate 509, the reagent tank 4 presses the upper base plate 509, and the upper base plate 509 presses the elastic component 7 to shrink. The downward trend of the upper base plate 509 is compressed by the connecting rod 504 to press the lower sliding block 503 and the upper sliding block 507 to slide inside the lower slide plate 502 and the upper slide plate 505 respectively, and the upper base plate 509 descends. When the contraction amount of the elastic component 7 is balanced with the pressure it receives, the upper base plate 509 stops descending, and the displacement sensor 5010 senses the distance from the upper base plate 509, and converts the value into the corresponding weight and displays it on the measuring screen 10.

[0026] Reference Figure 2-Figure 4 The opening and closing assembly 6 includes an oil cylinder 601, and the oil rod of the oil cylinder 601 is fixedly connected to the opening and closing block 602.

[0027] In this embodiment, it should be specifically explained that: when the air pressure inside the switch cabinet 1 increases to a certain level, the oil cylinder 601 pulls the opening and closing block 602 to open the vent 105. After a period of time, the oil cylinder 601 pulls the opening and closing block 602 to close the vent 105.

[0028] Reference Figure 2 、 Figure 3 and Figure 8 The elastic component 7 includes a bottom tube 701, the bottom of the bottom tube 701 is fixed to the upper surface of the lower base plate 501, a support rod 703 is slidably connected to the upper part of the bottom tube 701, and a first spring 702 is connected between the support rod 703 and the bottom tube 701.

[0029] In this embodiment, it should be specifically explained that: when the reagent tank 4 presses the upper base plate 509 downward, the first spring 702 begins to contract. When the contraction of the first spring 702 is balanced with the pressure it receives, the support rod 703 stops descending and the first spring 702 stops contracting.

[0030] Reference Figure 2 、 Figure 3 and Figure 5 The alarm component 9 includes a support column 901, a sliding round block 902 is fixedly connected to the periphery of the support column 901, a positioning block 903 is fixedly connected to the bottom of the support column 901, a third spring 904 is connected to the bottom of the support column 901, the third spring 904 is located inside the spring cavity 304, and an alarm 905 is fixedly connected to the bottom of the spring cavity 304, and the alarm 905 is located directly below the positioning block 903.

[0031] In this embodiment, it needs to be specifically explained that: after the adsorption plate 2 continuously filters the volatile gas, the weight of the adsorption plate 2 continues to increase, and the adsorption plate 2 begins to press the support column 901, the sliding round block 902, and the positioning block 903 to have a downward trend. The third spring 904 is compressed and continues to deform, and the support column 901, the sliding round block 902, and the positioning block 903 continue to descend. When the positioning block 903 touches the alarm 905, the alarm 905 sounds an alarm, which indicates that the filtering effect of the adsorption plate 2 is insufficient and needs to be replaced in time.

[0032] Working principle of the present invention: The main problem solved by this embodiment is: utilizing the fluidity of the gas to achieve filtration of volatile gases, solving the problem that volatile gases cannot be discharged in time when they accumulate to a certain level, and utilizing the initiative of the gravity of the reagent tank 4 and the positive correlation between the expansion and contraction of the first spring 702 and the magnitude of the force, thereby achieving the weighing of the weight of the reagent tank 4.

[0033] The specific steps are as follows: First, when the reagent tank 4 is placed on the upper base plate 509, the reagent tank 4 presses the upper base plate 509, the upper base plate 509 presses the support rod 703, the support rod 703 compresses the first spring 702 to contract, and the downward trend of the upper base plate 509 is pressed by the connecting rod 504 to press the lower sliding block 503 and the upper sliding block 507 to slide inside the lower slide plate 502 and the upper slide plate 505 respectively, and the upper base plate 509 descends. When the contraction of the first spring 702 is balanced with the pressure it receives, the upper base plate 509 stops descending, and the displacement sensor 5010 senses the distance from the upper base plate 509, converts the value into the corresponding weight and displays it on the measuring screen 10; When the cabinet door 102 is sealed and closed, after a period of time, the gas inside the reagent tank 4 evaporates from the reagent tank 4, and the air pressure inside the switch cabinet 1 increases. After the air pressure increases, the air pressure inside the cylinder 801 is lower than the external air pressure, and the sliding ring 804 slides inside the cylinder 801 toward the displacement sensor 805. When it slides to a certain distance, it means that the air pressure has increased to a certain extent. At this time, the displacement sensor 805 senses this distance and sends it to the cylinder 801. The cylinder 801 pushes the opening and closing block 602 to open the vent 105 and starts the blower 11 at the same time. The blower 11 draws the air containing volatile gas inside the switch cabinet 1 to the rear of the blower 11, and the air is discharged to the outside of the ventilation pipe 3 after being filtered by the adsorption plate 2. After a period of time, the oil cylinder 601 pulls the opening and closing block 602 to close the vent 105. After the adsorption plate 2 continuously filters the volatile gas, the weight of the adsorption plate 2 continues to increase, and the adsorption plate 2 begins to press the support column 901, the sliding round block 902, and the positioning block 903 to have a downward trend. The third spring 904 is compressed and continues to deform, and the support column 901, the sliding round block 902, and the positioning block 903 continue to descend. When the positioning block 903 touches the alarm 905, the alarm 905 sounds an alarm, which indicates that the filtering effect of the adsorption plate 2 is insufficient and needs to be replaced in time.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent reagent cabinet, comprising a switch cabinet (1), characterized in that: The tail of the switch cabinet (1) is fixedly connected to a ventilation pipe (3), the interior of the ventilation pipe (3) is slidably connected to an adsorption plate (2), a plurality of lifting mechanisms (5) are distributed inside the switch cabinet (1), a reagent tank (4) is placed on the top of the lifting mechanism (5), an opening and closing component (6) is connected inside the switch cabinet (1), an elastic component (7) is provided inside the lifting mechanism (5), an air pressure sensing component (8) is provided inside the switch cabinet (1), an alarm component (9) is provided inside the ventilation pipe (3), a metering screen (10) is fixed inside the switch cabinet (1), and a blower (11) is fixed inside the ventilation pipe (3); The air pressure sensing assembly (8) comprises a cylinder (801), the interior of the cylinder (801) is slidably connected to a sliding ring (804), a protruding rod (803) is provided at the center of the sliding ring (804), a second spring (802) is provided between the sliding ring (804) and the cylinder (801), and a displacement sensor (805) is fixedly connected to the bottom of the cylinder (801).

2. The intelligent reagent cabinet according to claim 1, characterized in that: The switch cabinet (1) comprises a cabinet body (101), a cabinet door (102) being slidably and sealingly connected to a cabinet opening of the cabinet body (101), a plurality of vertical partitions (103) and horizontal partitions (104) being fixed inside the cabinet body (101), the vertical partitions (103) and horizontal partitions (104) dividing the interior of the cabinet body (101) into a plurality of small sections, the vertical partitions (103) and horizontal partitions (104) being not connected to a rear wall of the cabinet body (101), a ventilation opening (105) being provided on the rear wall of the cabinet body (101), and the ventilation opening (105) being connected to a ventilation pipe (3).

3. The intelligent reagent cabinet according to claim 2, characterized in that: The ventilation pipe (3) comprises a pipe body (301), an upper opening (302) is formed on the upper wall of the pipe body (301), a lower groove (303) is formed on the bottom wall of the pipe body (301), the lower groove (303) is opposite to the upper opening (302) and has the same thickness as the adsorption plate (2), a spring cavity (304) is formed at the bottom of the pipe body (301), a guide cavity (305) is formed above the spring cavity (304), a sliding hole (306) is formed above the guide cavity (305), and the spring cavity (304), the guide cavity (305), and the sliding hole (306) are located in the middle of the lower groove (303).

4. The intelligent reagent cabinet according to claim 3, characterized in that: The lifting mechanism (5) comprises a lower base plate (501), the upper plate surface of the lower base plate (501) is fixedly connected to symmetrical lower slide groove plates (502), a lower sliding block (503) is slidably connected between the lower slide groove plates (502), the other end of the lower base plate (501) is fixedly connected to a lower fixed block (506), an upper base plate (509) is provided above the lower base plate (501), the lower plate surface of the upper base plate (509) is fixedly connected to symmetrical upper slide groove plates (505), and the upper slide groove plates (505) are slidably connected to each other. An upper sliding block (507) is slidably connected, the other end of the upper base plate (509) is fixedly connected to an upper fixed block (508), a connecting rod (504) is fixedly connected between the upper fixed block (508) and the lower sliding block (503), and a connecting rod (504) is also fixedly connected between the upper sliding block (507) and the lower fixed block (506), the upper plate surface of the lower base plate (501) is fixedly connected to a displacement sensor (5010), and the reagent tank (4) is located on the upper plate surface of the upper base plate (509).

5. The intelligent reagent cabinet according to claim 4, characterized in that: The opening and closing assembly (6) comprises an oil cylinder (601), and an oil rod of the oil cylinder (601) is fixedly connected to an opening and closing block (602).

6. The intelligent reagent cabinet according to claim 5, characterized in that: The elastic component (7) comprises a bottom cylinder (701), the bottom of the bottom cylinder (701) is fixed to the upper plate surface of the lower base plate (501), a support rod (703) is slidably connected to the upper interior of the bottom cylinder (701), and a first spring (702) is connected between the support rod (703) and the bottom cylinder (701).

7. The intelligent reagent cabinet according to claim 6, characterized in that: The alarm component (9) comprises a support column (901), the periphery of the support column (901) is fixedly connected to a sliding round block (902), the bottom of the support column (901) is fixedly connected to a positioning block (903), the bottom of the support column (901) is connected to a third spring (904), the third spring (904) is located inside a spring cavity (304), the bottom of the spring cavity (304) is fixedly connected to an alarm (905), and the alarm (905) is located directly below the positioning block (903).

8. A method for using an intelligent reagent cabinet, using the intelligent reagent cabinet device according to any one of claims 7, characterized in that: The following steps are involved: S1. The reagent tank (4) is placed on the upper base plate (509). The reagent tank (4) presses the base plate (509) down to a certain distance. The displacement sensor (5010) converts the value into the corresponding weight and displays it on the measuring screen (10); S2. When the gas inside the reagent tank (4) evaporates and the air pressure inside the switch cabinet (1) increases to a certain level, the cylinder (801) pushes the vent (105) to open, the blower (11) sucks in the volatile gas, and the adsorption plate (2) starts filtering; S3, the adsorption weight of the adsorption plate (2) continues to increase, and after the adsorption plate (2) presses the positioning block (903) to touch the alarm (905), the adsorption plate (2) is replaced.

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