A tea heavy metal detection device

Abstract

The application discloses a tea heavy metal detection equipment, relates to the technical field of tea detection, and comprises a detection box and a sample test tube, a feeding port is formed in the front side of the detection box, a box door is arranged on the front side of the detection box, a detection unit is arranged on the inner side of the detection box, a purification unit is arranged on the left side of the detection box, the detection unit comprises a supporting plate, the supporting plate is fixedly connected to the inner wall of the detection box, and a middle hole is formed in the middle part of the supporting plate. The tea heavy metal detection equipment is capable of controlling the horizontal movement of the sample test tube when detecting the tea in the sample test tube, shielding the top of the test tube by the two upper protective covers at the same time, treating the harmful gas generated during the detection through the air outlet pipe, the annular pipe and the purification box, and effectively avoiding the harm to the physical and mental health of the workers.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tea detection, in particular to a tea heavy metal detection equipment. BACKGROUND

[0002] As a kind of crop, tea will absorb mineral and trace element from soil, water and atmosphere in the growth process, which may also include some heavy metals harmful to human body. Before processing, tea needs to be detected for heavy metal content to facilitate food safety.

[0003] Through retrieval, application No. CN202410419629.3 is a kind of tea heavy metal detection equipment and detection method, which includes detection box, servo motor is fixedly installed on the bottom of the inner wall of the detection box, the output end of the servo motor is fixedly connected with gear, the bottom of the inner wall of the detection box is rotatably connected with first T-shaped disc, the top of the first T-shaped disc is fixedly installed with heavy metal detector and a plurality of fixed columns, the top of the fixed column is fixedly installed with turntable, the top of the turntable is provided with through hole, the liquid in the conveying pipe can flow into the reagent pipe through the conical cylinder by rotating the turntable to make the baffle contact with the movable plate.

[0004] The above patent needs to put the crushed tea into test tube, then add distilled water, hydrochloric acid and sodium chloride solution to promote heavy metal precipitation, so as to facilitate the observation and detection of the deposition condition by the camera of the detector. However, the top of the test tube is open, and the oxidizing substances or hypochlorite residues (may come from the planting process) contained in the tea may react with acid to produce highly toxic chlorine gas; these harmful gases (chlorine gas) will directly overflow from the open test tube, causing harm to the physical and mental health of the workers. SUMMARY

[0005] In view of the shortcomings of the prior art, the present application provides a tea heavy metal detection equipment, which solves the problem of harmful gas generation during detection, which harms the physical and mental health of workers.

[0006] To achieve the above purpose, the present application is realized by the following technical scheme:

[0007] The utility model provides a kind of tea heavy metal detection equipment, including detection box and sample test tube, the front side of the detection box is equipped with feed inlet, the front side of the detection box is equipped with box door, the inside of the detection box is equipped with detection unit, the left side of the detection box is equipped with purification unit, the detection unit includes support plate, the inner wall of detection box is fixedly connected in support plate, the middle part of support plate is equipped with middle hole, the bottom inner wall of detection box is fixedly connected with mounting rod, the upper end of mounting rod is fixedly connected with heavy metal detector, the upper side of support plate is equipped with two sliding grooves, the inside of two sliding grooves is slidably connected with sliding block, the upper side of sliding block is equipped with protection assembly, the inside of sliding groove is fixedly connected with electric push rod for driving sliding block to move, and the protection assembly is used to block the top of sample test tube and process harmful gas.

[0008] Preferably, the protection assembly includes a bottom plate fixedly connected to the upper side of the sliding block, two fixing blocks fixedly connected to the upper side of the bottom plate, two swing rods rotatably connected to the outer sides of the two fixing blocks, an installation plate fixedly connected between the two swing rods, a limiting ring fixedly connected to the upper side of the installation plate, the sample test tube located inside the limiting ring, side plates fixedly connected to the left and right sides of the installation plate, moving rods provided on the outer sides of the two side plates, protective covers fixedly connected to one end of the two moving rods, a control board one fixedly connected to the other end of the two moving rods, and through holes provided in the middle portions of the bottom plate and the installation plate.

[0009] Preferably, a spring is fixedly connected between the control board one and the side plate, a first rotating block fixedly connected to the outer sides of the two control board ones, an inclined plate rotatably connected to the outer side of the first rotating block, a second rotating block rotatably connected to the outer side of the inclined plate, a control board two fixedly connected to the rear side of the second rotating block, a resisting rod fixedly connected to the rear side of the control board two, an inclined block fixedly connected to the rear inner wall of the detection box, an electromagnet fixedly connected to the outer side of the side plate, a bottom block fixedly connected to the lower side of the control board one, and the bottom block made of metal material.

[0010] Preferably, the resisting rod abuts against the inclined block, a protection plate fixedly connected to the rear side of the side plate, an elastic rod fixedly connected between the control board two and the protection plate, and the protection plate provided in an arc-shaped structure.

[0011] Preferably, gas outlet pipes fixedly connected to the upper sides of the two protective covers, a top rod fixedly connected to the upper side of the installation plate, an annular pipe fixedly connected to the upper end of the top rod, side hoses fixedly connected between the gas outlet pipes and the annular pipe, output hoses fixedly connected to the outer side of the annular pipe, the purification unit including a purification box fixedly connected to the left side of the detection box, and the purification box fixedly connected with the output hoses.

[0012] Preferably, the outer side of the fixed block is rotationally connected with a rotating shaft, the outer end of the rotating shaft is fixedly connected with a rotating disc two, the outer end of the swinging rod is fixedly connected with a rotating disc one, the outer side of the rotating disc one is fixedly connected with a control block one, the outer side of the rotating disc two is fixedly connected with a control block two, the outer side of the control block one is rotationally connected with a connecting plate, the connecting plate is rotationally connected with the control block two, the outer side of the rotating shaft is fixedly connected with a gear, the upper side of the supporting plate is fixedly connected with a connecting block, the outer side of the connecting block is fixedly connected with a toothed plate meshed with the gear.

[0013] Preferably, the inner side of the purification box is fixedly connected with a partition plate and an activated carbon plate, the upper side of the purification box is fixedly connected with a liquid inlet pipe, the lower side of the purification box is fixedly connected with a liquid outlet pipe, the front side of the purification box is fixedly connected with an exhaust pipe, and the outer side of the partition plate is fixedly connected with a through pipe.

[0014] Preferably, the inner wall of the detection box is fixedly connected with a flow pump, the lower side of the flow pump is fixedly connected with a feeding pipe, the left side of the detection box is fixedly connected with a plurality of liquid containing boxes, the upper side of the liquid containing box is fixedly connected with a liquid distribution pipe, the liquid distribution pipe and the flow pump are fixedly connected with a connecting pipe, and the outer side of the liquid distribution pipe is provided with an electromagnetic valve.

[0015] The tea heavy metal detection equipment provided by the application has the following beneficial effects compared with the prior art:

[0016] (1) The tea heavy metal detection equipment can control the horizontal movement of the sample test tube during the detection of the tea in the sample test tube, and the two upper protective covers can shield the top of the test tube, and the harmful gas generated during the detection can be treated through the exhaust pipe, the annular pipe and the purification box, so as to effectively avoid the harm to the physical and mental health of the workers.

[0017] (2) The tea heavy metal detection equipment can make the sample test tube repeatedly shake through the installation plate during the movement of the sample test tube, so that the tea and the added solvent can be fully mixed, thereby improving the detection precision. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole three-dimensional structure diagram of the application;

[0019] Figure 2 It is an internal three-dimensional structure diagram of the application;

[0020] Figure 3 It is a first perspective three-dimensional structure diagram of the protective assembly in the application;

[0021] Figure 4 Figure 2 is a second perspective view of the protective assembly in the present application;

[0022] Figure 5 Figure 3 is an enlarged view of A in Figure 2; Figure 4

[0023] Figure 6 Figure 4 is an enlarged view of B in Figure 2; Figure 4

[0024] Figure 7 Figure 5 is a third perspective view of the protective assembly in the present application;

[0025] Figure 8 Figure 6 is a perspective view of the purification unit in the present application.

[0026] In the figure: 1, detection box; 2, feed inlet; 3, box door; 4, detection unit; 5, sample test tube; 6, purification unit; 7, flow pump; 8, feed pipe; 9, connecting pipe; 10, liquid containing box; 11, liquid separation pipe; 12, electromagnetic valve; 41, support plate; 42, middle hole; 43, heavy metal detector; 44, mounting rod; 45, sliding groove; 46, sliding block; 47, electric push rod; 48, protective assembly; 49, inclined block; 481, bottom plate; 482, through hole; 483, fixed block; 484, swing rod; 485, mounting plate; 486, limiting ring; 487, side plate; 488, top rod; 489, annular pipe; 4810, side hose; 4811, output hose; 4812, protective plate; 4813, moving rod; 4814, protective cover; 4815, air outlet pipe; 4816, control board one; 4817, spring; 4818, bottom block; 4819, electromagnet; 4820, rotating block one; 4821, inclined plate; 4822, rotating block two; 4823, control board two; 4824, resisting rod; 4825, telescopic rod; 4826, rotating shaft; 4827, gear; 4828, toothed plate; 4829, connecting block; 4830, rotating disc one; 4831, control block one; 4832, rotating disc two; 4833, control block two; 4834, connecting plate; 61, purification box; 62, liquid inlet pipe; 63, liquid outlet pipe; 64, partition plate; 65, through pipe; 66, activated carbon plate; 67, exhaust pipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] The present application provides the following technical solutions: ​​

[0029] Embodiment one

[0030] Please refer to Figures 1-8 A tea heavy metal detection equipment, including detection box 1 and sample test tube 5, the front side of detection box 1 is provided with feed inlet 2, the front side of detection box 1 is provided with box door 3, the inner side of detection box 1 is provided with detection unit 4, the left side of detection box 1 is provided with purification unit 6, detection unit 4 includes support plate 41, support plate 41 is fixedly connected to the inner wall of detection box 1, the middle part of support plate 41 is provided with middle hole 42, the bottom inner wall of detection box 1 is fixedly connected with mounting rod 44, the upper end of mounting rod 44 is fixedly connected with heavy metal detector 43, the upper side of support plate 41 is provided with two sliding grooves 45, the inner side of two sliding grooves 45 is slidably connected with sliding block 46, the upper side of sliding block 46 is provided with protection assembly 48, the inner side of sliding groove 45 is fixedly connected with electric push rod 47 for driving sliding block 46 to move, protection assembly 48 is used for blocking the top of sample test tube 5 and treating harmful gas, sample test tube 5 is placed in the pulverized tea, which is convenient for mixing tea, distilled water, hydrochloric acid and sodium chloride solution in the future, the upper side of heavy metal detector 43 is provided with camera, the camera is located in the inner side of middle hole 42, which is convenient for the camera to detect the heavy metal deposited at the bottom of sample test tube 5.

[0031] The inner wall of detection box 1 is fixedly connected with flow pump 7, the lower side of flow pump 7 is fixedly connected with feed pipe 8, the left side of detection box 1 is fixedly connected with multiple liquid containing tanks 10, the upper side of liquid containing tank 10 is fixedly connected with distribution pipe 11, distribution pipe 11 and flow pump 7 are fixedly connected with connecting pipe 9, the outer side of distribution pipe 11 is provided with electromagnetic valve 12, the inner side of multiple liquid containing tanks 10 contains distilled water, hydrochloric acid and sodium chloride solution, distribution pipe 11 is divided into three ways, the liquid in the inner side of liquid containing tank 10 is controlled by electromagnetic valve 12, and distilled water, hydrochloric acid and sodium chloride solution are made to enter sample test tube 5 through feed pipe 8 by connecting pipe 9 and flow pump 7, and the flow of the liquid is controlled by flow pump 7.

[0032] The protection assembly 48 comprises a bottom plate 481 fixedly connected to the upper side of the sliding block 46, the upper side of the bottom plate 481 is fixedly connected with two fixed blocks 483, the outer sides of the two fixed blocks 483 are rotatably connected with two swing rods 484, the two swing rods 484 are fixedly connected with an installation plate 485, the upper side of the installation plate 485 is fixedly connected with a limiting ring 486, the sample test tube 5 is located on the inner side of the limiting ring 486, the left and right sides of the installation plate 485 are fixedly connected with side plates 487, the outer sides of the two side plates 487 are provided with moving rods 4813, one end of the two moving rods 4813 is fixedly connected with a protective cover 4814, the other end of the moving rod 4813 is fixedly connected with a control plate one 4816, the middle parts of the bottom plate 481 and the installation plate 485 are both provided with through holes 482, the control plate one 4816 and the side plate 487 are fixedly connected with springs 4817, the outer sides of the two control plate ones 4816 are fixedly connected with rotating blocks one 4820, the outer sides of the rotating blocks one 4820 are rotatably connected with inclined plates 4821, the outer sides of the inclined plates 4821 are rotatably connected with rotating blocks two 4822, the rear sides of the rotating blocks two 4822 are fixedly connected with control plate twos 4823, the rear sides of the control plate twos 4823 are fixedly connected with abutting rods 4824, the rear inner wall of the detection box 1 is fixedly connected with an inclined block 49, the abutting rod 4824 abuts against the inclined block 49, the rear side of the side plate 487 is fixedly connected with a protective plate 4812, the control plate twos 4823 and the protective plate 4812 are fixedly connected with telescopic rods 4825, the protective plate 4812 is provided in an arc-shaped structure, the arc-shaped protective plate 4812 protects the sample test tube 5, when detection is needed, the electric push rod 47 drives the sliding block 46 to move, the sliding block 46 drives the bottom plate 481 to move, the bottom plate 481 drives the installation plate 485 to move, the installation plate 485 drives the control plate two 4823 to move to the right, the control plate two 4823 drives the abutting rod 4824 to move, since the abutting rod 4824 abuts against the inclined block 49, the abutting rod 4824 is out of the support of the inclined block 49, under the elastic force of the spring 4817, the abutting rod 4824 moves backward, the abutting rod 4824 drives the control plate two 4823 to move backward, the control plate two 4823 drives the inclined plate 4821 to rotate, the inclined plate 4821 drives the control plate one 4816 to move, the control plate one 4816 drives the moving rod 4813 to move, since the two inclined plates 4821 are symmetrically distributed, the two moving rods 4813 move close to each other, the moving rod 4813 drives the protective cover 4814 to move, the two protective covers 4814 move close to each other, the two protective covers 4814 are attached to each other to shield the top of the sample test tube 5, avoid harmful gas generated in the sample test tube 5 from overflowing, and prevent liquid in the test tube from splashing out.

[0033] The outer side of the side plate 487 is fixedly connected with an electromagnet 4819, the lower side of the control plate one 4816 is fixedly connected with a bottom block 4818, the bottom block 4818 is made of metal material, when the protective cover 4814 blocks the top of the sample test tube 5, the electromagnet 4819 is powered, at this time the control plate one 4816 drives the bottom block 4818 to move, the bottom block 4818 is attached to the electromagnet 4819, so that the electromagnet 4819 adsorbs the bottom block 4818, which is convenient for limiting the protective cover 4814 and avoiding the deviation of the protective cover 4814 during detection.

[0034] The upper side of the two side protective covers 4814 is fixedly connected with an air outlet pipe 4815, the upper side of the mounting plate 485 is fixedly connected with a top rod 488, the upper end of the top rod 488 is fixedly connected with an annular pipe 489, the air outlet pipe 4815 and the annular pipe 489 are fixedly connected with a side hose 4810, the outer side of the annular pipe 489 is fixedly connected with an output hose 4811, the purification unit 6 comprises a purification box 61, the purification box 61 is fixedly connected to the left side of the detection box 1, the purification box 61 is fixedly connected with the output hose 4811, the inner side of the purification box 61 is fixedly connected with a partition plate 64 and an activated carbon plate 66, the upper side of the purification box 61 is fixedly connected with a liquid inlet pipe 62, the lower side of the purification box 61 is fixedly connected with a liquid outlet pipe 63, the front side of the purification box 61 is fixedly connected with an exhaust pipe 67, the outer side of the partition plate 64 is fixedly connected with a through pipe 65, during detection, harmful gases are easily generated in the sample test tube 5, which are directly discharged and easily harm the physical and mental health of the workers, at this time the harmful gases are introduced into the annular pipe 489 through the side hose 4810 of the two side air outlet pipes 4815, and the harmful gases are introduced into the purification box 61 through the output hose 4811, the sodium lime solution is introduced into the purification box 61 through the liquid inlet pipe 62, the sodium lime solution is isolated by the partition plate 64, the acid gas in the harmful gas is absorbed, then the harmful gas is discharged from the right side area of the partition plate 64 through the through pipe 65, the activated carbon plate 66 adsorbs the organic gas, and finally the exhaust pipe 67 is discharged, wherein the outer sides of the liquid inlet pipe 62 and the liquid outlet pipe 63 are provided with valves, which are convenient for the circulation of liquid, when the amount of harmful gas is large, the outer side of the output hose 4811 is connected with an external air pump, the air pump is connected with the purification box 61, and the harmful gas is quickly extracted and purified.

[0035] Example two

[0036] On the basis of example one, as Figure 4 , Figure 6As shown, the outer side of the fixed block 483 is rotatably connected with a rotating shaft 4826, the outer end of the rotating shaft 4826 is fixedly connected with a rotating disc two 4832, the outer end of the swing rod 484 is fixedly connected with a rotating disc one 4830, the outer side of the rotating disc one 4830 is fixedly connected with a control block one 4831, the outer side of the rotating disc two 4832 is fixedly connected with a control block two 4833, the outer side of the control block one 4831 is rotatably connected with a connecting plate 4834, the connecting plate 4834 is rotatably connected with the control block two 4833, the outer side of the rotating shaft 4826 is fixedly connected with a gear 4827, the upper side of the supporting plate 41 is fixedly connected with a connecting block 4829, the outer side of the connecting block 4829 is fixedly connected with a toothed plate 4828 which is meshedly connected with the gear 4827, before detection, the control mounting plate 485 moves right, the mounting plate 485 drives the rotating shaft 4826 on the fixed block 483 to move, the rotating shaft 4826 drives the gear 4827 to move, since the gear 4827 is meshedly connected with the toothed plate 4828, the gear 4827 rotates, the gear 4827 drives the rotating shaft 4826 to rotate, the rotating shaft 4826 drives the rotating disc two 4832 to rotate, the rotating disc two 4832 drives the control block two 4833 to rotate, the control block two 4833 drives the connecting plate 4834 to rotate, the connecting plate 4834 drives the control block one 4831 to rotate, the control block one 4831 drives the rotating disc one 4830 to repeatedly swing forward and backward, the rotating disc one 4830 drives the swing rod 484 to repeatedly rotate forward and backward, the swing rod 484 drives the mounting plate 485 to swing, the mounting plate 485 drives the sample test tube 5 to swing, (at this time the protective cover 4814 shields the top of the test tube, the liquid inside will not overflow), the liquid in the sample test tube 5 is fully, which is convenient for the following detection, when detecting, the gear 4827 is separated from the toothed plate 4828, the mounting plate 485 resets, so that the sample test tube 5 is vertically placed and will not be inclined, the gear 4827 is meshed with the toothed plate 4828 after the protective cover 4814 blocks the top of the test tube.

[0037] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0038] Working principle: in use, the staff first inserts the sample test tube 5 into the inner side of the limiting ring 486, the inner side of the sample test tube 5 contains crushed tea, then controls the flow pump 7 and the electromagnetic valve 12, adds distilled water, hydrochloric acid and sodium chloride solution into the test tube through the feeding pipe 8, then controls the electric push rod 47 to move the bottom plate 481 right, the bottom plate 481 moves the sample test tube 5, and the mounting plate 485 moves the side plate 487, the side plate 487 moves the stop rod 4824 on the control plate two 4823 right, because the stop rod 4824 abuts against the inclined block 49, under the action of the spring 4817, the stop rod 4824 moves backward, the stop rod 4824 moves the control plate two 4823 backward, the control plate two 4823 drives the inclined plate 4821 to rotate, the inclined plate 4821 moves the moving rod 4813 on the control plate one 4816, the moving rod 4813 moves the protective cover 4814, the protective cover 4814 on both sides shields the top of the sample test tube 5, avoiding the harmful gas generated in the test tube from overflowing, at the same time, through the gas outlet pipe 4815, the side hose 4810, the annular pipe 489 and the output hose 4811, the harmful gas is introduced into the purification box 61, the lye solution is added into the purification box 61 through the liquid inlet pipe 62, and the harmful gas is treated through the activated carbon plate 66, finally the treated gas is discharged through the exhaust pipe 67, avoiding affecting the physical and mental health of the staff, when the protective cover 4814 shields the top of the sample test tube 5, the mounting plate 485 continues to move right, the mounting plate 485 moves the gear 4827, because the gear 4827 is engaged with the toothed plate 4828, the gear 4827 rotates, under the action of the rotating shaft 4826, the rotating disc two 4832, the control block two 4833, the rotating disc one 4830, the control block one 4831 and the connecting plate 4834, the swing rod 484 drives the mounting plate 485 to swing repeatedly, the mounting plate 485 drives the sample test tube 5 to swing slightly, so that the liquid in the test tube is fully mixed, which is convenient for the following detection.

[0039] During the detection process, the sample test tube 5 moves to the middle part of the supporting plate 41, so that the bottom of the sample test tube 5 is aligned with the middle hole 42, and the heavy metal deposited at the bottom of the test tube is detected by the heavy metal detector 43.

[0040] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0041] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A heavy metal detection device for tea, comprising a detection chamber (1) and sample tubes (5), characterized in that: The detection box (1) has a feed inlet (2) on the front side, a door (3) on the front side, a detection unit (4) on the inside side, a purification unit (6) on the left side, and a support plate (41) fixedly connected to the inner wall of the detection box (1). A center hole (42) is opened in the middle of the support plate (41), and an installation rod (4) is fixedly connected to the bottom inner wall of the detection box (1). 4) A heavy metal detector (43) is fixedly connected to the upper end of the mounting rod (44). Two sliding grooves (45) are opened on the upper side of the support plate (41). A slider (46) is slidably connected to the inner side of each of the two sliding grooves (45). A protective component (48) is provided on the upper side of the slider (46). An electric push rod (47) for driving the slider (46) to move is fixedly connected to the inner side of the sliding groove (45). The protective component (48) is used to block the top of the sample tube (5) and treat harmful gases. The protective assembly (48) includes a base plate (481), which is fixedly connected to the upper side of the slider (46). Two fixing blocks (483) are fixedly connected to the upper side of the base plate (481). A swing rod (484) is rotatably connected to the outer side of each of the two fixing blocks (483). A mounting plate (485) is fixedly connected between the two swing rods (484). A limit ring (486) is fixedly connected to the upper side of the mounting plate (485). The sample tube (5) Located inside the limiting ring (486), the mounting plate (485) is fixedly connected to the left and right sides of the side plate (487), and the outer sides of the side plates (487) are provided with moving rods (4813). One end of the two moving rods (4813) is fixedly connected to a protective cover (4814), and the other end of the moving rods (4813) is fixedly connected to a control plate (4816). The bottom plate (481) and the mounting plate (485) are both provided with through holes (482). A spring (4817) is fixedly connected between the control plate 1 (4816) and the side plate (487). A rotating block 1 (4820) is fixedly connected to the outer side of both sides of the control plate 1 (4816). An inclined plate (4821) is rotatably connected to the outer side of the rotating block 1 (4820). A rotating block 2 (4822) is rotatably connected to the outer side of the inclined plate (4821). A control plate 2 (4823) is fixedly connected to the rear side of the rotating block 2 (4822). A stop rod (4824) is fixedly connected to the rear side of the control plate 2 (4823). An inclined block (49) is fixedly connected to the inner rear wall of the detection box (1). An electromagnet (4819) is fixedly connected to the outer side of the side plate (487). A bottom block (4818) is fixedly connected to the lower side of the control plate 1 (4816). The bottom block (4818) is made of metal. The abutment (4824) abuts against the inclined block (49), and a protective plate (4812) is fixedly connected to the rear side of the side plate (487). A telescopic rod (4825) is fixedly connected between the control plate (4823) and the protective plate (4812). The protective plate (4812) is set with an arc-shaped structure. A rotating shaft (4826) is rotatably connected to the outer side of the fixed block (483). A second turntable (4832) is fixedly connected to the outer end of the rotating shaft (4826). A first turntable (4830) is fixedly connected to the outer end of the swing rod (484). A first control block (4831) is fixedly connected to the outer side of the first turntable (4830). A second control block (4833) is fixedly connected to the outer side of the second turntable (4832). A connecting plate (4834) is rotatably connected to the outer side of the first control block (4831). The connecting plate (4834) is rotatably connected to the second control block (4833). A gear (4827) is fixedly connected to the outer side of the rotating shaft (4826). A connecting block (4829) is fixedly connected to the upper side of the support plate (41). A toothed plate (4828) that meshes with the gear (4827) is fixedly connected to the outer side of the connecting block (4829).

2. The tea heavy metal detection device according to claim 1, characterized in that: The upper sides of the protective covers (4814) on both sides are fixedly connected with air outlet pipes (4815), the upper side of the mounting plate (485) is fixedly connected with a top rod (488), the upper end of the top rod (488) is fixedly connected with an annular pipe (489), a side hose (4810) is fixedly connected between the air outlet pipe (4815) and the annular pipe (489), and an output hose (4811) is fixedly connected to the outside of the annular pipe (489). The purification unit (6) includes a purification box (61), the purification box (61) is fixedly connected to the left side of the detection box (1), and the purification box (61) is fixedly connected to the output hose (4811).

3. The tea heavy metal detection device according to claim 2, characterized in that: The inner side of the purification box (61) is fixedly connected to a partition (64) and an activated carbon plate (66). The upper side of the purification box (61) is fixedly connected to an inlet pipe (62). The lower side of the purification box (61) is fixedly connected to an outlet pipe (63). The front side of the purification box (61) is fixedly connected to an exhaust pipe (67). The outer side of the partition (64) is fixedly connected to a through pipe (65).

4. The tea heavy metal detection device according to claim 1, characterized in that: A flow pump (7) is fixedly connected to the inner wall of the detection box (1). A feed pipe (8) is fixedly connected to the lower side of the flow pump (7). Multiple liquid tanks (10) are fixedly connected to the left side of the detection box (1). A liquid distribution pipe (11) is fixedly connected to the upper side of the liquid tank (10). A connecting pipe (9) is fixedly connected between the liquid distribution pipe (11) and the flow pump (7). A solenoid valve (12) is provided on the outside of the liquid distribution pipe (11).

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