Laser dust meter for chemical pollution detection

Abstract

The utility model discloses a laser dust meter for chemical pollution detection, and relates to the technical field of chemical pollution detection. The device comprises a bottom plate, mounting frames are arranged on the two sides of the upper portion of the bottom plate, a detection cylinder is arranged between the mounting frames, a sampling assembly is arranged above the mounting frames, and a storage assembly is further arranged on the bottom plate; electric push rods in the sampling assembly are fixedly connected to the front and rear ends of the mounting rack, and piston shafts of the electric push rods are fixedly connected with a lifting plate. According to the utility model, the electric push rod and the lifting plate in the sampling assembly are used for driving the gas-collecting hood to lift, and the gas-collecting hood is used for sampling and detecting air at different heights, so that the problem that the air at different heights is inconvenient to sample and detect in the prior art is solved; a detected air sample is guided into a storage cylinder for storage through a first connecting pipe and a second connecting pipe in the storage assembly, so that the problem that the detection sample is inconvenient to store in the prior art is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical pollution detection, in particular to a laser dust meter used for chemical pollution detection. Background Art

[0002] With the development of various industries, today's environmental pollution is becoming more and more serious. In order to manage and protect the environment, various environmental pollution detections are often required. Among them, chemical pollution detection is an important one. Chemical pollution detection refers to the use of specific instruments to conduct on-site determination of chemical pollutants in the environment. In the process of chemical pollution detection, the detection of chemical dust is a very important one. In order to facilitate the detection of chemical dust pollution in the environment, laser dust meters are generally used.

[0003] The document with the existing publication number CN220040165U discloses a laser dust detector, comprising: a support mechanism; a detection mechanism, the detection mechanism being mounted on the support mechanism; a sealing mechanism; a disposable sealing bag, the disposable sealing bag being used in conjunction with the detection mechanism and the sealing mechanism to detect air dust; the support mechanism including a support plate;

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. The laser dust detector mentioned above has the bottom end of its support plate fixedly mounted on the surface of the mounting plate, and an air inlet ring is mounted on the top of the support plate. A fan is mounted inside the air inlet ring. The fan is mounted through the support plate and the air inlet ring, and air is introduced into a disposable sealed bag for dust detection through the fan. However, since the heights of the support plate and the air inlet ring are fixed, the installation of the fan is also fixed, which makes it inconvenient for the fan to sample air at different heights, and it is inconvenient to perform chemical dust detection on the air at different heights, resulting in poor detection accuracy.

[0006] 2. The laser dust detector mentioned above has a wind bucket body sealed on the side wall of the air inlet ring, and a laser detection sensor is installed in the wind bucket body. The chemical dust concentration is detected by the laser detection sensor in the wind bucket body, but it lacks the function of retaining samples of the detected gas, which makes it inconvenient to preserve the detected samples.

[0007] To this end, we provide a laser dust meter for chemical pollution detection to solve the above problems. Utility Model Content

[0008] The purpose of the utility model is to provide a laser dust meter for chemical pollution detection, which drives the air collecting hood to rise and fall through the electric push rod and the lifting plate in the sampling component, and samples and detects the air at different heights through the air collecting hood, thereby solving the existing problem of inconvenience in sampling and detecting the air at different heights. The tested air sample is introduced into the storage tube for storage through the first connecting tube and the second connecting tube in the storage component, thereby solving the existing problem of inconvenience in storing the test sample.

[0009] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0010] The utility model is a laser dust meter for chemical pollution detection, comprising a base plate, mounting brackets are provided on both sides above the base plate, a detection cylinder is provided between the mounting brackets, a sampling assembly is provided above the mounting brackets, and a storage assembly is also provided above the base plate;

[0011] The electric push rods in the sampling assembly are respectively fixedly connected to the front and rear ends of the mounting frame, the piston shafts of the electric push rods are fixedly connected to the lifting plate, the center position of the upper surface of the lifting plate is fixedly connected to the mounting seat, a telescopic hose is horizontally passed through the upper edge of the outer wall of the mounting seat, one end of the telescopic hose is fixedly connected to the gas collecting cover, and the other end of the telescopic hose is fixedly connected to the air intake cover, and the air intake cover respectively passes through the two sides of the top of the detection cylinder;

[0012] The storage box in the storage assembly is fixedly connected to the center position of the upper surface of the base plate, and a first connecting pipe passes through the top front end of the storage box. The end of the first connecting pipe located on the outside of the storage box is fixedly connected to two groups of second connecting pipes through a three-way joint. A turntable is rotatably connected to the bottom of the storage box, and a placement rack is fixedly connected above the turntable. The surface of the placement rack is distributed in a circular array and passes through multiple groups of storage cylinders.

[0013] The utility model is further configured as follows: pulleys are fixedly connected to the lower surface of the base plate all around, fixing rods are welded to the front and rear ends on both sides of the upper surface of the base plate, the top ends of the fixing rods are fixedly connected to the front and rear ends of the bottom of the mounting frame respectively, and fixing plates are fixedly connected below the front and rear end surfaces of the mounting frame, and the bottom ends of the electric push rods are fixedly connected to the fixing plates.

[0014] The utility model is further configured as follows: both ends of the detection tube are sleeved on the inner side of the mounting frame, a partition is welded at the inner center of the detection tube, and laser dust sensors are fixedly connected to the outer walls on both sides of the partition.

[0015] The present invention is further configured as follows: exhaust pipes are passed through the outer walls of both sides of the detection cylinder, and one end of the exhaust pipe located outside the detection cylinder is fixedly connected to an exhaust valve.

[0016] The utility model is further configured as follows: a filter plate is fixedly connected to the interior of the air collecting hood.

[0017] The utility model is further configured as follows: a first fan is provided at the inner center position of the air intake hood, U-shaped plates are fixedly connected to the outer walls on both sides of the first fan, connecting rods are welded to the vertical arms of the U-shaped plates, connecting plates are welded to the ends of the connecting rods away from the U-shaped plates, and the outer wall of the connecting plate on the side away from the connecting rod is respectively fixedly connected to the inner walls on both sides of the air intake hood.

[0018] The utility model is further configured as follows: one end of the second connecting tube away from the first connecting tube passes through both sides of the bottom of the detection cylinder and is fixedly connected to a second fan, the second fans are located on both sides of the interior of the detection cylinder, and a solenoid valve is also provided on the second connecting tube.

[0019] The utility model is further configured as follows: a rotating shaft is welded to the bottom of the turntable, the bottom end of the rotating shaft is rotatably connected to the inner bottom of the storage box, a driving motor is fixedly connected to the outer wall of one side of the storage box through a motor frame, and synchronous wheels are sleeved on the outer wall of the rotating shaft and the output shaft of the driving motor, and the synchronous wheels are connected by belt transmission.

[0020] The utility model is further configured as follows: a feed valve is provided on the top of the storage cylinder, one end of the first connecting pipe located inside the storage box and the top of the feed valve are both sleeved with connecting disks, and electromagnets are embedded on both sides of the surface of the connecting disk.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model sets a sampling component. When it is necessary to sample and test the air at different heights, the electric push rod is started, and an external force is applied to the lifting plate through the piston shaft of the electric push rod, so that the lifting plate drives the air collecting hood to move up and down through the mounting seat, and when the air collecting hood reaches a preset height, the electric push rod is closed, and the air is sampled through the first fan at the same time, which facilitates the sampling and testing of the air at different heights and improves the accuracy of the detection.

[0023] 2. The utility model sets up a storage component, and introduces the air sample after the test in the detection cylinder into the storage box through the first connecting tube and the second connecting tube, and drives the storage cylinder to rotate through the turntable and the placement rack, so that the storage cylinder is connected to the first connecting tube through the connecting disk, and then the air sample after the test in the detection cylinder is stored in the storage cylinder, thereby realizing the preservation of the air after the test.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a schematic diagram of the overall structure of a laser dust meter used for chemical pollution detection;

[0027] Figure 2 This is a schematic diagram of the structure of the mounting frame of the utility model;

[0028] Figure 3 It is a partial cross-sectional view of the detection tube of the utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the sampling assembly of the utility model;

[0030] Figure 5 This is a structural disassembly diagram of the air intake cover of the utility model;

[0031] Figure 6 A partial cross-sectional view of the storage assembly of the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of the turntable of the utility model;

[0033] Figure 8 It is a structural schematic diagram of the storage cylinder of the utility model.

[0034] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0035] 1-base plate, 101-pulley, 2-mounting frame, 201-fixing rod, 202-fixing plate, 3-detection cylinder, 301-partition plate, 302-laser dust sensor, 303-exhaust pipe, 304-exhaust valve, 4-sampling assembly, 401-electric push rod, 402-lifting plate, 403-mounting seat, 404-telescopic hose, 405-gas collection hood, 405a-filter plate, 406-air intake hood, 406a-first fan, 406b-U-shaped plate, 406c-connector Rod, 406d-connecting plate, 5-storage assembly, 501-storage box, 502-first connecting pipe, 503-tee joint, 504-second connecting pipe, 504a-second fan, 504b-solenoid valve, 505-turntable, 505a-rotating shaft, 505b-motor frame, 505c-drive motor, 505d-synchronizing wheel, 505e-belt, 506-placement rack, 507-storage cylinder, 507a-feed valve, 508-connecting plate, 508a-electromagnet. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Specific embodiment 1

[0038] See also Figure 1-5 As shown, the first embodiment of the utility model provides a laser dust meter for chemical pollution detection, including a base plate 1, a mounting frame 2, a detection tube 3 and a sampling assembly 4, and the sampling assembly 4 includes an electric push rod 401, a lifting plate 402, a telescopic hose 404, an air collecting hood 405 and an air intake hood 406. The air collecting hood 405 is driven to rise and fall by the electric push rod 401 and the lifting plate 402, which is convenient for sampling air at different heights, solving the existing problem of inconvenience in sampling and detecting air at different heights.

[0039] Specifically, the electric push rod 401 is fixedly connected to the front and rear ends of the mounting frame 2 respectively, the piston shaft of the electric push rod 401 is fixedly connected to the lifting plate 402, and the center position of the upper surface of the lifting plate 402 is fixedly connected to the mounting seat 403, and a telescopic hose 404 is horizontally passed through the outer wall of the mounting seat 403, one end of the telescopic hose 404 is fixedly connected to the air collecting hood 405, and the other end of the telescopic hose 404 is fixedly connected to the air intake hood 406, and the air intake hood 406 passes through the top two sides of the detection cylinder 3 respectively, and is used to drive the lifting plate 402 to rise and fall through the setting of the electric push rod 401, and is used to install the telescopic hose 404 through the setting of the lifting plate 402 and the mounting seat 403, so that the lifting plate 402 drives the telescopic hose 404 and the air collecting hood 405 to rise and fall, and at the same time, the setting of the air intake hood 406 is used to introduce air into the interior of the detection cylinder 3.

[0040] Furthermore, pulleys 101 are fixedly connected to the four sides of the lower surface of the bottom plate 1, and fixing rods 201 are welded to the front and rear ends of the upper surface of both sides of the bottom plate 1. The top ends of the fixing rods 201 are fixedly connected to the front and rear ends of the bottom of the mounting frame 2 respectively, and the lower parts of the front and rear ends of the mounting frame 2 are fixedly connected to fixing plates 202. The bottom ends of the electric push rods 401 are fixedly connected to the fixing plates 202. The setting of the pulleys 101 facilitates the movement of the bottom plate 1 and facilitates the movement of the detector to the site. The setting of the fixing rods 201 is used to install the mounting frame 2, and the setting of the fixing plates 202 is used to install the electric push rods 401.

[0041] Both ends of the detection cylinder 3 are sleeved on the inner side of the mounting frame 2. A partition 301 is welded to the inner center of the detection cylinder 3. Laser dust sensors 302 are fixedly connected to the outer walls of both sides of the partition 301. Exhaust pipes 303 are passed through the outer walls of both sides of the detection cylinder 3. An exhaust valve 304 is fixedly connected to one end of the exhaust pipe 303 located on the outer side of the detection cylinder 3. The partition 301 is used to divide the internal space of the detection cylinder 3 into two independent spaces, which is convenient for simultaneous dust detection of two groups of air samples. The laser dust sensor 302 is used to detect chemical dust in the air. The exhaust pipe 303 and the exhaust valve 304 are used to discharge the air samples after detection.

[0042] A filter plate 405a is fixedly connected to the interior of the air collecting hood 405. The filter plate 405a prevents larger garbage such as plastic bags from entering the interior of the air collecting hood 405.

[0043] A first fan 406a is provided at the inner center position of the air intake hood 406, and a U-shaped plate 406b is fixedly connected to the outer walls on both sides of the first fan 406a, and a connecting rod 406c is welded to the vertical support arm of the U-shaped plate 406b, and a connecting plate 406d is welded to the end of the connecting rod 406c away from the U-shaped plate 406b, and the outer wall of the connecting plate 406d away from the connecting rod 406c is fixedly connected to the inner walls on both sides of the air intake hood 406, respectively. The first fan 406a is provided to draw air from the external environment into the detection tube 3 for dust detection, and the connecting rod 406c is provided to install the first fan 406a, and the U-shaped plate 406b and the connecting plate 406d are provided to respectively realize the connection between the connecting rod 406c and the first fan 406a and the air intake hood 406.

[0044] The operating process of this embodiment is as follows: first, the base plate 1 is pushed to the specified position by the pulley 101, and the first fan 406a is started. Under the suction of the first fan 406a, the air in the external environment enters the telescopic hose 404 through the air collecting hood 405, and enters the interior of the detection tube 3 through the air intake hood 406. At this time, the chemical dust in the air is detected by the laser dust sensor 302 in the detection tube 3, and after the detection is completed, the exhaust valve 304 is opened to discharge the detected air sample through the exhaust pipe 303. At the same time, when it is necessary to sample and detect the air at different heights, the electric push rod 401 is started. After the electric push rod 401 is started, its piston shaft drives the lifting plate 402 to rise and fall, and drives the air collecting hood 405 to rise and fall through the lifting plate 402, thereby realizing the sampling and detection of air at different heights. Specific embodiment 2

[0046] See also Figure 6-8As shown, it is the second embodiment of the present invention, which is based on the previous embodiment, but is different from the previous embodiment in that: a storage component 5 is further provided on the base plate 1, and the storage component 5 includes a storage box 501, a first connecting tube 502, a second connecting tube 504, a turntable 505, a placement rack 506 and a storage cylinder 507. The air sample tested in the detection cylinder 3 is stored in the storage cylinder 507 through the first connecting tube 502 and the second connecting tube 504, which solves the existing problem of inconvenience in retaining the air sample after detection.

[0047] Specifically, the storage box 501 is fixedly connected to the center of the upper surface of the bottom plate 1, and a first connecting pipe 502 is passed through the top front end of the storage box 501. One end of the first connecting pipe 502 located outside the storage box 501 is fixedly connected to two sets of second connecting pipes 504 through a three-way joint 503. A turntable 505 is rotatably connected to the lower part of the storage box 501, and a placement rack 506 is fixedly connected to the top of the turntable 505. The surface of the placement rack 506 is distributed in a circular array and is penetrated by multiple groups of storage cylinders 507. The storage box 501 is designed The device is used to install structures such as the turntable 505. The first connecting tube 502 and the second connecting tube 504 are used to connect the internal space of the detection cylinder 3 with the internal space of the storage box 501, and the three-way joint 503 is used to connect the first connecting tube 502 and the second connecting tube 504. The turntable 505 and the placement rack 506 are used to place the storage cylinder 507 and drive the storage cylinder 507 to rotate. At the same time, the storage cylinder 507 is used to retain the air sample after detection.

[0048] Furthermore, one end of the second connecting tube 504, away from the first connecting tube 502, passes through both sides of the bottom of the detection tube 3 and is fixedly connected to a second fan 504a. The second fans 504a are located on both sides of the interior of the detection tube 3. The second connecting tube 504 is also provided with a solenoid valve 504b. The second fan 504a is configured to direct the air sample in the detection tube 3 into the second connecting tube 504. The solenoid valve 504b is configured to control the air flow in the second connecting tube 504.

[0049] A rotating shaft 505a is welded to the bottom of the turntable 505, and the bottom end of the rotating shaft 505a is rotatably connected to the inner bottom of the storage box 501. A driving motor 505c is fixedly connected to the outer wall of one side of the storage box 501 through a motor frame 505b. Synchronous wheels 505d are sleeved on the outer wall of the rotating shaft 505a and the output shaft of the driving motor 505c. The synchronous wheels 505d are connected by a belt 505e. The setting of the rotating shaft 505a is used to rotatably install the turntable 505 inside the storage box 501 and drive the turntable 505 to rotate. The setting of the motor frame 505b is used to install the driving motor 505c, and is used to drive the synchronous wheel 505d to rotate through the setting of the driving motor 505c. Under the action of the transmission connection between the synchronous wheel 505d and the belt 505e, the rotating shaft 505a rotates synchronously;

[0050] A feed valve 507a is provided at the top of the storage cylinder 507, and a connecting disk 508 is provided on one end of the first connecting pipe 502 located inside the storage box 501 and the top of the feed valve 507a. Electromagnets 508a are inlaid on both sides of the surface of the connecting disk 508. The feed valve 507a is used to feed into the interior of the storage cylinder 507, and the connecting disk 508 and the electromagnet 508a are used to connect the first connecting pipe 502 and the feed valve 507a.

[0051] The rest of the structure is the same as that of the first embodiment.

[0052] The operation process of this embodiment is as follows: the second fan 504a and the corresponding solenoid valve 504b are started. Under the action of the second fan 504a, the air sample after testing in the detection cylinder 3 is sequentially passed through the second connecting pipe 504 and the first connecting pipe 502 into the interior of the storage cylinder 507, thereby retaining the tested air sample. After the specified volume of air sample is stored in the storage cylinder 507, the feed valve 507a and the electromagnet 508a are closed, and the drive motor 505c is started. The output shaft of the drive motor 505c drives the rotating shaft 505a and the turntable 505 to rotate synchronously through the synchronous pulley 505d and the belt 505e, so that the turntable 505 drives the storage cylinder 507 to rotate, thereby positioning the new storage cylinder 507 below the first connecting pipe 502. At this time, the electromagnet 508a on the new storage cylinder 507 is turned on, so that the feed valve 507a of the new storage cylinder 507 is connected to the first connecting pipe 502, facilitating the classification and retention of different air samples.

[0053] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0054] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, numerous modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A laser dust monitor for chemical pollution detection, comprising a base plate (1), mounting frames (2) are arranged on both sides above the base plate (1), and a detection cylinder (3) is arranged between the mounting frames (2), characterized in that: A sampling assembly (4) is arranged above the mounting frame (2), and an electric push rod (401) in the sampling assembly (4) is fixedly connected to the front and rear ends of the mounting frame (2), respectively; a piston shaft of the electric push rod (401) is fixedly connected to a lifting plate (402), and a mounting seat (403) is fixedly connected to the center position of the upper surface of the lifting plate (402); a telescopic hose (404) is passed through the outer wall of the mounting seat (403) in the horizontal direction, and one end of the telescopic hose (404) is fixedly connected to an air collecting hood (405), and the other end of the telescopic hose (404) is fixedly connected to an air intake hood (406), and the air intake hood (406) passes through both sides of the top of the detection cylinder (3) respectively; The base plate (1) is also provided with a storage assembly (5), and a storage box (501) in the storage assembly (5) is fixedly connected to the center position of the upper surface of the base plate (1), a first connecting pipe (502) is passed through the front end of the top of the storage box (501), and one end of the first connecting pipe (502) located outside the storage box (501) is fixedly connected to two groups of second connecting pipes (504) through a three-way joint (503), a turntable (505) is rotatably connected to the lower part of the storage box (501), and a placement rack (506) is fixedly connected to the top of the turntable (505), and a surface of the placement rack (506) is distributed in a circular array and passed through a plurality of groups of storage tubes (507).

2. The laser dust detector for chemical pollution detection according to claim 1 is characterized in that: The lower surface of the base plate (1) is fixedly connected with pulleys (101) on all sides, and the front and rear ends of both sides of the upper surface of the base plate (1) are welded with fixing rods (201), the top ends of the fixing rods (201) are respectively fixedly connected to the front and rear ends of the bottom of the mounting frame (2), and the lower parts of the front and rear end surfaces of the mounting frame (2) are fixedly connected with fixing plates (202), and the bottom ends of the electric push rods (401) are fixedly connected to the fixing plates (202).

3. The laser dust detector for chemical pollution detection according to claim 1 is characterized in that: Both ends of the detection cylinder (3) are sleeved on the inner side of the mounting frame (2), and a partition (301) is welded at the inner center position of the detection cylinder (3), and laser dust sensors (302) are fixedly connected to the outer walls on both sides of the partition (301).

4. The laser dust monitor for chemical pollution detection according to claim 3 is characterized in that: Exhaust pipes (303) are passed through the outer walls of both sides of the detection cylinder (3), and one end of the exhaust pipe (303) located outside the detection cylinder (3) is fixedly connected to an exhaust valve (304).

5. The laser dust detector for chemical pollution detection according to claim 1 is characterized in that: A filter plate (405a) is fixedly connected to the interior of the gas collecting hood (405).

6. The laser dust detector for chemical pollution detection according to claim 1 is characterized in that: A first fan (406a) is arranged at the inner center position of the air intake hood (406), and U-shaped plates (406b) are fixedly connected to the outer walls on both sides of the first fan (406a), a connecting rod (406c) is welded to the vertical arm of the U-shaped plate (406b), and a connecting plate (406d) is welded to the end of the connecting rod (406c) away from the U-shaped plate (406b), and the outer wall of the connecting plate (406d) away from the connecting rod (406c) is fixedly connected to the inner walls on both sides of the air intake hood (406).

7. The laser dust detector for chemical pollution detection according to claim 1 is characterized in that: One end of the second connecting tube (504) away from the first connecting tube (502) passes through both sides of the bottom of the detection cylinder (3) and is fixedly connected to a second fan (504a), and the second fan (504a) is located on both sides of the interior of the detection cylinder (3). A solenoid valve (504b) is also provided on the second connecting tube (504).

8. The laser dust detector for chemical pollution detection according to claim 1 is characterized in that: A rotating shaft (505a) is welded to the bottom of the rotating disk (505), and the bottom end of the rotating shaft (505a) is rotatably connected to the inner bottom of the storage box (501), and a driving motor (505c) is fixedly connected to the outer wall of one side of the storage box (501) through a motor frame (505b), and synchronous wheels (505d) are sleeved on the outer wall of the rotating shaft (505a) and the output shaft of the driving motor (505c), and the synchronous wheels (505d) are connected to each other through a belt (505e).

9. The laser dust detector for chemical pollution detection according to claim 1, characterized in that: A feed valve (507a) is provided at the top of the storage cylinder (507), and a connecting disk (508) is sleeved on one end of the first connecting tube (502) located inside the storage box (501) and the top of the feed valve (507a), and electromagnets (508a) are embedded on both sides of the surface of the connecting disk (508).

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