A soil metal pretreatment device

Abstract

The utility model relates to the technical field of soil detection, specifically, to a soil metal pretreatment device, including a bottom plate and a mixing barrel arranged on the bottom plate, support columns are arranged at the four corners of the bottom plate, a mounting plate is arranged at the top of the support columns, limit columns are arranged at the four corners of the mounting plate, a fixed plate is arranged at the top of the limit columns, a displacement plate slidably connected with the limit columns and movable up and down is arranged between the fixed plate and the mounting plate, a motor is arranged on the displacement plate, a stirring rod penetrating the mounting plate and extending into the mixing barrel is arranged at the output end of the motor, stirring blades are evenly arranged on the stirring rod, and a driving assembly for driving the displacement plate to move up and down is arranged on the mounting plate. The displacement plate can be driven up and down by the driving assembly, so that the stirring blades can be adjusted to extend in and out of the mixing barrel, which better solves the problem that the mixing barrel is inconvenient to place and take at the center of the stirring mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of soil detection, in particular to a soil metal pre-treatment device. Background Art

[0002] There are many methods for pretreatment of soil metals. The most common method is wet digestion. Wet digestion is to add strong oxidizing acid to the sample, destroy the organic matter by heating, release the inorganic components to be tested, and finally form stable inorganic compounds for actual analysis.

[0003] For example, the patent number CN213985929U discloses a pre-treatment device for detecting heavy metals in soil, including a fixed base, a through hole is provided on the fixed base, a stirring barrel is inserted in the through hole, a fixing mechanism for fixing the stirring barrel is arranged inside the fixed base, a fixing frame is fixedly connected to the upper end of the fixed base, a fixed tube is fixedly connected to the upper end of the fixed frame, a stirring mechanism for stirring the sample in the stirring barrel is arranged inside the fixed tube, and a fixed block is arranged at the upper end of the fixed tube. Although the pre-treatment device for detecting heavy metals in soil achieves mixing of sample components in the stirring barrel with reagents by setting a stirring mechanism to avoid uneven mixing; however, the pre-treatment device has some shortcomings. In actual use, the stirring mechanism cannot move up and down, which makes it inconvenient to place and take the stirring barrel at the center of the stirring mechanism, so it needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a soil metal pretreatment device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A soil metal pretreatment device comprises a base plate and a mixing barrel arranged on the base plate, support columns are arranged at the four corners of the base plate, a mounting plate is arranged at the top of the support columns, limit columns are arranged at the four corners of the mounting plate, a fixed plate is arranged at the top of the limit column, a displacement plate slidably connected to the limit columns and movable up and down is arranged between the fixed plate and the mounting plate, a motor is arranged on the displacement plate, a stirring rod penetrating the mounting plate and extending into the mixing barrel is arranged on the output end of the motor, stirring blades are evenly distributed on the stirring rod, and a driving component for driving the displacement plate to move up and down is arranged on the mounting plate.

[0007] Furthermore, the driving assembly includes vertical plates symmetrically arranged on the mounting plate, a rotatable shaft body is provided between the vertical plates, a driving bevel gear is symmetrically provided on the shaft body, a rotatable round rod is provided on the fixed plate corresponding to the driving bevel gear, the round rod thread is arranged through the displacement plate, the top end of the round rod is rotatably connected to the fixed plate, and the bottom end of the round rod is provided with a driven bevel gear meshing with the driving bevel gear.

[0008] Furthermore, one end of the shaft body is extended out of the vertical plate, and the extended end of the shaft body is provided with a crank for driving the shaft body to rotate.

[0009] Furthermore, a square block is provided on the bottom plate, a first arc-shaped plate is provided on the square block, and a fixing component is provided on the bottom plate and is matched with the first arc-shaped plate to fix the mixing barrel.

[0010] Furthermore, the fixing assembly includes a long strip block arranged on the bottom plate, a cavity is opened in the long strip block, a push rod extending through the bottom wall of the cavity is arranged in the cavity, a second arc plate matching with the first arc plate is arranged at the end of the push rod extending out of the cavity, a push block is arranged at the end of the push rod located in the cavity, a blocking cap is arranged at the opening of the cavity, and a spring for pushing the push rod to enable the second arc plate and the first arc plate to clamp the mixing barrel is arranged between the blocking cap and the push block.

[0011] Furthermore, one end of the push rod extends out of the blocking cap, and a pull rod for pulling the push rod away from the mixing barrel is provided at the end of the push rod extending out of the blocking cap.

[0012] Furthermore, a sleeve connected to the plugging cap is sleeved on the push rod between the plugging cap and the pull rod, a chuck connected to the sleeve is sleeved on the push rod, and a nut threadedly connected to the sleeve is provided on the sleeve for driving the chuck to clamp the push rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The soil metal pretreatment device, through the arrangement of the vertical plate, the shaft body, the active bevel gear, the round rod, the driven bevel gear and the crank, when it is necessary to drive the displacement plate to move up and down, the crank can be turned to drive the shaft body to rotate, the shaft body drives the active bevel gear to rotate, the active bevel gear drives the driven bevel gear to rotate, and the driven bevel gear drives the round rod to rotate. Since the displacement plate is limited by the limiting column, the round rod is threadedly connected to the displacement plate, so that the rotation of the round rod can drive the displacement plate to move up and down, and then the stirring rod can move up and down, so that it is convenient to take and put the stirring barrel on the bottom plate.

[0015] 2. The soil metal pretreatment device is provided with a square block, a first curved plate, a long block, a cavity, a push rod, a second curved plate, a push block, a plugging cap and a spring. When fixing the mixing barrel placed on the bottom plate, first pull the pull rod to drive the push rod to compress the spring through the push block, so that the push rod retracts into the cavity. After the retraction of the push rod drives the second curved plate away from the first curved plate, the mixing barrel is placed between the first curved plate and the second curved plate. Then release the pull rod, the spring pushes the push rod to drive the second curved plate to squeeze the mixing barrel, so that the mixing barrel is fixed between the first curved plate and the second curved plate, so as to prevent the mixing barrel from shaking and overturning when the soil sample and reagent in the mixing barrel are stirred.

[0016] 3. The soil metal pretreatment device is provided with a sleeve, a chuck and a nut. When the second arc plate fixes the mixing barrel, the nut can be rotated to move toward the chuck. The inner wall of the nut squeezes the chuck so that the chuck can hold the push rod tightly. The nut and the sleeve are long enough. When the chuck holds the push rod tightly, a part of the nut can still be threadedly connected with the sleeve. By holding the push rod tightly, when the stirring blade stirs the soil sample and the reagent, the shaking of the mixing barrel cannot push the second arc plate to drive the push rod compression spring to move, thereby better fixing the mixing barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a soil metal pretreatment device in the utility model.

[0018] Figure 2 It is a cross-sectional view of the pre-processing device of the utility model cut along the central axis of the push rod.

[0019] Figure 3 It is a schematic diagram of the exploded structure of the fixing component in the utility model.

[0020] Figure 4 for Figure 2 A magnified schematic diagram of center A.

[0021] The meanings of the numbers in the figure are as follows: 1. bottom plate; 2. mixing barrel; 3. support column; 4. mounting plate; 5. limit column; 6. fixing plate; 7. displacement plate; 8. motor; 9. stirring rod; 10. stirring blade; 100. vertical plate; 101. shaft; 102. driving bevel gear; 103. round rod; 104. driven bevel gear; 105. crank; 200. square block; 201. first arc plate; 202. long strip block; 203. cavity; 204. push rod; 205. second arc plate; 206. push block; 207. plugging cap; 208. spring; 209. pull rod; 300. sleeve; 301. chuck; 302. nut. DETAILED DESCRIPTION

[0022] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0023] The following is combined with Figure 1-Figure 4 This embodiment is described in further detail.

[0024] See also Figure 1-Figure 4 A soil metal pretreatment device in this embodiment includes a base plate 1 and a mixing barrel 2 arranged on the base plate 1, support columns 3 are arranged at the four corners of the base plate 1, a mounting plate 4 is arranged at the top of the support column 3, limiting columns 5 are arranged at the four corners of the mounting plate 4, a fixing plate 6 is arranged at the top of the limiting column 5, a displacement plate 7 slidably connected to the limiting column 5 and movable up and down is arranged between the fixing plate 6 and the mounting plate 4, a motor 8 is arranged on the displacement plate 7, a stirring rod 9 penetrating the mounting plate 4 and extending into the mixing barrel 2 is arranged at the output end of the motor 8, stirring blades 10 are evenly distributed on the stirring rod 9, and a driving component for driving the displacement plate 7 to move up and down is arranged on the mounting plate 4.

[0025] In this embodiment, by setting the bottom plate 1, the mixing barrel 2, the support column 3, the mounting plate 4, the limiting column 5, the fixing plate 6 and the displacement plate 7, the support column 3 is fixedly connected to the four corners of the bottom plate 1, the mounting plate 4 is fixedly connected to the top of the support column 3, the limiting column 5 is fixedly connected to the four corners of the mounting plate 4, and the fixing plate 6 is fixedly connected to the top of the limiting column 5, so that a stand is preferably formed;

[0026] Among them, the four corners of the displacement plate 7 are slidably connected with the corresponding limit columns 5 respectively, and there is a certain gap between the displacement plate 7 and the mounting plate 4 to facilitate the installation of the driving component, and the driving component can be used to drive the displacement plate 7 to move up and down along the limit columns 5; wherein the mixing barrel 2 can be placed on the bottom plate 1, and the motor 8, the stirring rod 9, the stirring blade 10 and the driving component are arranged so that the motor 8 is fixedly connected to the displacement plate 7, and the output end of the motor 8 passes through the displacement plate 7, and the stirring rod 9 is fixedly connected to the output end of the motor 8, and the stirring rod 9 passes through the mounting plate 4 and can extend into the center of the mixing barrel 2, and the part of the stirring rod 9 extending into the mixing barrel 2 is fixedly connected with the stirring blade 10. When the mixing barrel 2 needs to be placed on the bottom plate 1, the displacement plate 7 can be driven to move up by the driving component, and the displacement plate 7 drives the stirring rod 9 to move up to The stirring barrel 2 is then placed in the mixing barrel 2, and the mixing barrel 2 is placed on the bottom plate 1 at a position directly below the center of the stirring rod 9. The displacement plate 7 is then driven downward by the driving assembly to allow the stirring blade 10 to fully extend into the mixing barrel 2. The stirring rod 9 is driven to rotate by the output end of the motor 8, and the stirring rod 9 drives the stirring blade 10 to rotate to mix the soil sample and the reagent in the mixing barrel 2. When the mixing is completed and the mixing barrel 2 needs to be taken out, the displacement plate 7 is driven upward by the driving assembly until the stirring blade 10 is fully extended from the mixing barrel 2, and the mixing barrel 2 can be taken out. The above structure preferably solves the problem that the existing mixing mechanism cannot move up and down, making it inconvenient to place and take the mixing barrel 2 at the center of the mixing mechanism.

[0027] Among them, the mounting plate 4 is provided with a through hole for the stirring rod 9 to move up and down, and the fixing plate 6 is provided with a circular hole corresponding to the motor 8 for the power supply 8 to move up, so that the displacement plate 7 can move up a sufficient distance to facilitate the placement of the stirring barrel 2 on the bottom plate 1.

[0028] See also Figure 1-Figure 4 In this embodiment, the driving assembly includes a vertical plate 100 symmetrically arranged on the mounting plate 4, a rotatable shaft body 101 is provided between the vertical plates 100, an active bevel gear 102 is symmetrically provided on the shaft body 101, a rotatable round rod 103 is provided on the fixed plate 6 corresponding to the active bevel gear 102, the round rod 103 is threaded through the displacement plate 7, the top of the round rod 103 is rotatably connected to the fixed plate 6, the bottom end of the round rod 103 is provided with a driven bevel gear 104 meshing with the active bevel gear 102, one end of the shaft body 101 is extended out of the vertical plate 100, and the extended end of the shaft body 101 is provided with a crank 105 for driving the shaft body 101 to rotate.

[0029] In this embodiment, by setting the vertical plate 100, the shaft 101, the active bevel gear 102, the round rod 103, the driven bevel gear 104 and the crank 105, the vertical plate 100 is respectively fixedly connected to the two sides of the mounting plate 4, the shaft 101 is rotatably connected between the vertical plates 100, the active bevel gear 102 is respectively fixedly connected to the two sides of the shaft 101 between the vertical plates 100, the top end of the round rod 103 can be connected to the fixed plate 6 through the bearing seat, the bottom end of the round rod 103 is fixedly installed with the driven bevel gear 104, the crank 105 is connected to the The shaft body 101 is fixedly connected. When the displacement plate 7 needs to be driven to move up and down, the crank 105 can be turned to drive the shaft body 101 to rotate, the shaft body 101 drives the active bevel gear 102 to rotate, the active bevel gear 102 drives the driven bevel gear 104 to rotate, and the driven bevel gear 104 drives the round rod 103 to rotate. Since the limiting column 5 limits the displacement plate 7, the round rod 103 is threadedly connected with the displacement plate 7, so that the synchronous rotation of the round rod 103 can drive the displacement plate 7 to move up and down, and then the stirring rod 9 can move up and down;

[0030] It should be pointed out that in order to improve the stability of the installation of the round rod 103, the lower end of the round rod 103 is fixedly installed on the corresponding vertical plate 100 through a bracket, and a bearing is installed on the bracket and is sleeved on the outside of the round rod 103, so as to better realize the rotational installation of the lower end of the round rod 103 on the bracket.

[0031] See also Figure 1-Figure 4 In this embodiment, a square block 200 is provided on the bottom plate 1, a first arc plate 201 is provided on the square block 200, a fixing assembly for fixing the mixing barrel 2 in cooperation with the first arc plate 201 is provided on the bottom plate 1, the fixing assembly comprises a long strip block 202 provided on the bottom plate 1, a cavity 203 is provided in the long strip block 202, a push rod 204 extending through the bottom wall of the cavity 203 is provided in the cavity 203, and a second arc plate 201 is provided at the end of the push rod 204 extending out of the cavity 203. shaped plate 205, a push block 206 is provided at the end of the push rod 204 located in the cavity 203, a blocking cap 207 is provided at the opening of the cavity 203, a spring 208 is sleeved between the blocking cap 207 and the push block 206 for pushing the push rod 204 so that the second curved plate 205 and the first curved plate 201 clamp the mixing barrel 2, one end of the push rod 204 extends out of the blocking cap 207, and a pull rod 209 is provided at the end of the push rod 204 extending out of the blocking cap 207 for pulling the push rod 204 away from the mixing barrel 2.

[0032] In this embodiment, by arranging the square block 200, the first curved plate 201, the long block 202, the cavity 203, the push rod 204, the second curved plate 205, the push block 206, the plugging cap 207 and the spring 208, the square block 200 is fixedly connected to the bottom plate 1, the first curved plate 201 is fixedly connected to the square block 200, the long block 202 is fixedly connected to the bottom plate 1, the push rod 204 is slidably connected to the bottom wall of the cavity 203, the second curved plate 205 is fixedly connected to the push rod 204, the first curved plate 201 and the second curved plate 205 are symmetrically arranged, the push block 206 is fixedly connected to the push rod 204, the plugging cap 207 is threadedly connected to the opening of the cavity 203, so as to facilitate the installation of other components in the cavity 203, the pull rod 209 is fixedly connected to the push rod 204, and when placed on the bottom plate 1 When fixing the mixing barrel 2, first pull the pull rod 209 to drive the push rod 204 to compress the spring 208 through the push block 206, so that the push rod 204 retracts into the cavity 203. After the retraction of the push rod 204 drives the second curved plate 205 away from the first curved plate 201, the mixing barrel 2 is placed between the first curved plate 201 and the second curved plate 205, and then release the pull rod 209. The spring 208 pushes the push rod 204 to drive the second curved plate 205 to squeeze the mixing barrel 2, so that the mixing barrel 2 is fixed between the first curved plate 201 and the second curved plate 205, to prevent the mixing barrel 2 from shaking and overturning when the soil sample and reagent in the mixing barrel 2 are stirred; when it is necessary to release the fixing of the mixing barrel 2, pull the pull rod 209 again to drive the second curved plate 205 away from the mixing barrel 2.

[0033] See also Figure 1-Figure 4 In this embodiment, a sleeve 300 connected to the plugging cap 207 is sleeved on the push rod 204 between the plugging cap 207 and the pull rod 209, a chuck 301 connected to the sleeve 300 is sleeved on the push rod 204, and a nut 302 threadedly connected to the sleeve 300 for driving the chuck 301 to clamp the push rod 204 is provided on the sleeve 300.

[0034] In this embodiment, the sleeve 300, the chuck 301 and the nut 302 are arranged so that the sleeve 300 is fixedly connected to the plugging cap 207, the chuck 301 is fixedly connected to the sleeve 300, the chuck 301 is in a truncated cone shape, the aperture of the portion close to the nut 302 is smaller, and the aperture of the portion away from the nut 302 is larger. The chuck 301 is an elastic element. When the second arc plate 205 fixes the mixing barrel 2, the nut 302 can be rotated so that the nut 302 moves toward the chuck 301, and the nut 302 is The inner wall squeezes the chuck 301 so that the chuck 301 can hold the push rod 204 tightly. The nut 302 and the sleeve 300 are long enough. When the chuck 301 holds the push rod 204 tightly, a part of the nut 302 can still be threadedly connected with the sleeve 300. By holding the push rod 204 tightly, when the stirring blade 10 stirs the soil sample and the reagent, the shaking of the stirring barrel 2 cannot push the second arc plate 205 to drive the push rod 204 to compress the spring 208 to move, thereby better fixing the stirring barrel 2.

[0035] Working principle: When the soil metal pretreatment device is in use, firstly, the crank 105 is rotated to drive the shaft 101 to rotate, the shaft 101 drives the active bevel gear 102 to rotate, the active bevel gear 102 drives the driven bevel gear 104 to rotate, the driven bevel gear 104 drives the round rod 103 to rotate, the rotation of the round rod 103 drives the displacement plate 7 to move up, and then drives the stirring rod 9 to move up until it does not affect the placement of the stirring barrel 2, then stop rotating the crank 105, then pull the pull rod 209, drive the push rod 204 to retract the push rod 204 into the cavity 203 through the push block 206 to compress the spring 208, and the push rod 204 After the retraction drives the second curved plate 205 away from the first curved plate 201, the mixing barrel 2 is placed between the first curved plate 201 and the second curved plate 205, and then the pull rod 209 is released. The spring 208 pushes the push rod 204 to drive the second curved plate 205 to squeeze the mixing barrel 2, so that the mixing barrel 2 is fixed between the first curved plate 201 and the second curved plate 205. After the mixing barrel 2 is fixed, the lower end of the stirring rod 9 can be extended into the mixing barrel 2 by turning the crank 105, and the motor 8 is started. The motor 8 drives the stirring blade 10 to stir and mix the soil sample and reagent in the mixing barrel 2.

Claims

1. A soil metal pretreatment device, comprising a base plate (1) and a mixing barrel (2) arranged on the base plate (1), characterized in that: The bottom plate (1) is provided with support columns (3) at four corners, a mounting plate (4) is provided at the top of the support columns (3), limiting columns (5) are provided at four corners of the mounting plate (4), a fixing plate (6) is provided at the top of the limiting columns (5), a displacement plate (7) is provided between the fixing plate (6) and the mounting plate (4), the displacement plate (7) is slidably connected to the limiting columns (5) and can move up and down, a motor (8) is provided on the displacement plate (7), an output end of the motor (8) is provided with a stirring rod (9) which passes through the mounting plate (4) and can extend into the stirring barrel (2), stirring blades (10) are evenly arranged on the stirring rod (9), and a driving component for driving the displacement plate (7) to move up and down is provided on the mounting plate (4).

2. A soil metal pretreatment device according to claim 1, characterized in that: The driving assembly comprises vertical plates (100) symmetrically arranged on the mounting plate (4), a rotatable shaft body (101) is arranged between the vertical plates (100), a driving bevel gear (102) is symmetrically arranged on the shaft body (101), a rotatable round rod (103) is arranged on the fixed plate (6) corresponding to the driving bevel gear (102), the round rod (103) is threadedly passed through the displacement plate (7), the top end of the round rod (103) is rotatably connected to the fixed plate (6), and the bottom end of the round rod (103) is provided with a driven bevel gear (104) meshing with the driving bevel gear (102).

3. A soil metal pretreatment device according to claim 2, characterized in that: One end of the shaft body (101) is arranged to extend out of the vertical plate (100), and the extended end of the shaft body (101) is provided with a crank (105) for driving the shaft body (101) to rotate.

4. The soil metal pretreatment device according to claim 1, characterized in that: The bottom plate (1) is provided with a square block (200), the square block (200) is provided with a first arc-shaped plate (201), and the bottom plate (1) is provided with a fixing component that cooperates with the first arc-shaped plate (201) and is used to fix the mixing barrel (2).

5. A soil metal pretreatment device according to claim 4, characterized in that: The fixing assembly comprises a long strip (202) arranged on the bottom plate (1), a cavity (203) being provided in the long strip (202), a push rod (204) penetrating through the bottom wall of the cavity (203) and extending out, an end of the push rod (204) extending out of the cavity (203) being provided with a second arc plate (205) cooperating with the first arc plate (201), a push block (206) being provided at the end of the push rod (204) located in the cavity (203), a blocking cap (207) being provided at the opening of the cavity (203), and a spring (208) being provided between the blocking cap (207) and the push block (206) for pushing the push rod (204) so ​​that the second arc plate (205) and the first arc plate (201) clamp the mixing barrel (2).

6. A soil metal pretreatment device according to claim 5, characterized in that: One end of the push rod (204) extends out of the blocking cap (207), and a pull rod (209) for pulling the push rod (204) away from the mixing barrel (2) is provided at the end of the push rod (204) extending out of the blocking cap (207).

7. A soil metal pretreatment device according to claim 6, characterized in that: A sleeve (300) connected to the plugging cap (207) is sleeved on the push rod (204) between the plugging cap (207) and the pull rod (209), a chuck (301) connected to the sleeve (300) is sleeved on the push rod (204), and a nut (302) threadedly connected to the sleeve (300) is provided on the sleeve (300) for driving the chuck (301) to clamp the push rod (204).

Images