Pretreatment device of sample for environmental monitoring

Abstract

The invention belongs to the technical field of environmental monitoring, and discloses an environmental monitoring sample pretreatment device which comprises a shell, and an upper grinding block is fixedly mounted at the top of the shell. By arranging a lower grinding block, a lifting block, a second motor and a round rod, when an operator grinds a soil sample, soil can be poured from the top of an upper grinding block, then a first motor is started, a rotating shaft drives the lower grinding block to rotate, and then the upper grinding block and the lower grinding block are matched; when the grinding fineness needs to be adjusted, a second motor can be started to enable a circular shaft to drive a disc to rotate, so that a circular rod can rotate by taking the circular shaft as an axis, and the circular rod extrudes and pushes the interior of a lifting block, so that the lifting block is driven to move downwards; and then the lifting block drives the protective shell to move downwards, so that the lower grinding block moves downwards.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental monitoring, and in particular relates to a sample pretreatment device for environmental monitoring. Background Art

[0002] Environmental monitoring refers to the activities of environmental monitoring agencies to monitor and measure the environmental quality status. The process of environmental monitoring generally includes accepting tasks, on-site investigation and data collection, monitoring plan design, optimization of site layout, sample collection, sample transportation and storage, sample pretreatment, analysis and testing, data processing, and comprehensive evaluation.

[0003] Soil monitoring is an important part of environmental monitoring. Operators need to collect samples during environmental monitoring. However, the collected soil volume is large and the soil pieces are of inconsistent sizes. Operators are required to grind the soil samples to facilitate subsequent soil testing. Existing soil grinding is usually performed by operators using grinding rods. However, due to the large number of soil samples, the method of grinding with grinding rods is time-consuming and labor-intensive, and often requires a lot of operator time, which seriously affects the efficiency of subsequent testing. In addition, the grinding is not fine enough, and the fineness of soil grinding cannot be adjusted according to actual conditions. Therefore, it needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide a sample pretreatment device for environmental monitoring to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pretreatment device for samples for environmental monitoring, comprising a shell, an upper grinding block is fixedly installed on the top of the shell, a fixing plate is fixedly installed inside the shell, a mounting box is fixedly installed on the upper surface of the fixing plate, a protective shell is movably sleeved inside the mounting box, a first motor is fixedly installed inside the protective shell, a rotating shaft is fixedly connected to the other end of the output shaft of the first motor, the top end of the rotating shaft passes through the protective shell and extends to the top of the protective shell and is movably sleeved with the inner wall of the protective shell, a lower grinding block is fixedly sleeved on the outer surface of the rotating shaft, and the protective shell is fixedly sleeved on the outer surface of the rotating shaft. A lifting block is fixedly installed on the bottom of the protective shell, and the outer surface of the lifting block is movably connected to the inner wall of the installation box, and a second motor is fixedly installed on the back of the installation box, and the other end of the output shaft of the second motor is fixedly connected to a round shaft, and the front end of the round shaft extends to the interior of the installation box and is movably connected to the inner wall of the installation box, and a disc is fixedly connected to the outer surface of the round shaft, and a round rod is fixedly installed on the top of the front side of the disc, and the outer surface of the round rod is movably connected to the inner wall of the lifting block, and the front end of the round rod is fixedly connected to a round block, and a fixed shaft is movably connected inside the round block, and the outer surface of the fixed shaft is fixedly connected to the inner wall of the installation box.

[0006] Preferably, a motor housing is fixedly sleeved on the outer surface of the second motor, and baffles are fixedly installed on both left and right sides of the bottom of the upper grinding block.

[0007] Preferably, the front and back sides of the shell are both movably sleeved with limit blocks, a placement plate located inside the shell is fixedly connected between the limit blocks, the outer surface of the placement plate is movably connected to the inner surface of the shell, and a first circular hole is opened at the bottom of the placement plate.

[0008] Preferably, a sample box is fixedly installed inside the placement plate, and limiting plates are fixedly installed on the left and right sides of the bottom of the placement plate. A movable plate is movably connected between the limiting plates, and the outer surface of the movable plate is movably connected to the bottom of the placement plate, and a second circular hole is opened inside the movable plate.

[0009] Preferably, a pneumatic cylinder is fixedly installed on the front side of the right side of the bottom of the placement plate, a connecting block is fixedly connected to the front end of the pneumatic cylinder, and the left end of the connecting block is fixedly connected to the outer surface of the movable plate.

[0010] Preferably, a driving motor is fixedly installed on the right side of the back side of the shell, the other end of the driving motor output shaft is fixedly connected to a rotating shaft, a circular plate is fixedly sleeved on the outer surface of the rotating shaft, a hinged rod is hinged on the top of the back side of the circular plate, and the other end of the hinged rod is hinged to the outer surface of the limit block.

[0011] Preferably, a power motor is fixedly installed at the bottom of the right side of the shell, and the other end of the power motor output shaft is fixedly connected to a double-threaded rod. The left end of the double-threaded rod penetrates the shell and extends to the interior of the shell and is movably connected to the inner wall of the shell. Movable plates are threadedly connected on both sides of the left and right sides of the outer surface of the double-threaded rod, and the bottom of the movable plate is movably connected to the bottom of the inner surface of the shell.

[0012] Preferably, there are two movable plates, and push-pull rods are hinged inside the front and rear sides of the two movable plates, and a lifting plate is hinged on the top of the push-pull rods. Limit rods are fixedly connected to the left and right sides of the lifting plate, and the outer surface of the limit rods is movably connected to the inner wall of the shell, and a test tube is movably connected inside the lifting plate.

[0013] Preferably, a mounting plate located above the lifting plate is fixedly sleeved inside the shell, a drainage tube is fixedly sleeved inside the mounting plate, a movable door is hinged at the bottom of the front side of the shell, and a transparent plate is fixedly sleeved at the top of the front side of the shell.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The present invention provides a lower grinding block, a lifting block, a second motor and a round rod. When grinding a soil sample, the operator can pour the soil from the top of the upper grinding block, and then start the first motor to make the rotating shaft drive the lower grinding block to rotate, so that the upper grinding block cooperates with the lower grinding block to perform grinding pretreatment on the soil sample. When the grinding fineness needs to be adjusted, the second motor can be started to make the round shaft drive the disc to rotate, so that the round rod can rotate with the round shaft as the axis, so that the round rod squeezes and pushes the inside of the lifting block, thereby driving the lifting block to move downward, and then the lifting block drives the protective shell to move downward, so that the lower grinding block moves downward, and then the fineness of soil grinding is adjusted, thereby improving the flexibility of the device.

[0016] 2. The present invention sets a placement plate, a sample box, a circular plate and a hinged rod, and the ground soil sample will fall into the interior of the sample box. At this time, the operator starts the driving motor to make the rotating shaft drive the circular plate to rotate, and then the hinged rod can drive the limit block to reciprocate left and right, so that the limit block can drive the placement plate and the sample box to vibrate, and then the soil can be gradually and evenly distributed inside the nine sample boxes under the action of vibration, so that the soil can be divided into nine parts as evenly as possible, which is convenient for the operator to perform different tests on the soil samples later.

[0017] 3. The present invention provides a double-threaded rod, a movable plate, a push-pull rod and a lifting plate, so that the soil will fall into the interior of the test tube through the drainage tube, so that soil samples can be added to the interior of the test tube in batches. Then the operator starts the power motor, so that the double-threaded rod drives the two movable plates to move in opposite directions, and then the movable plate can drive the lifting plate to move downward through the push-pull rod, so that the operator can open the movable door and take out the test tube from the inside of the lifting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic cross-sectional structural diagram of the front side of the present invention;

[0020] Figure 3 It is a schematic cross-sectional structural diagram of the side of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the back side of the present invention;

[0022] Figure 5 It is a schematic cross-sectional structural diagram of the housing of the present invention;

[0023] Figure 6 for Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0024] Figure 7 for Figure 3 Schematic diagram of the local enlarged structure at point B in the middle.

[0025] In the figure: 1, housing; 2, upper grinding block; 3, fixed plate; 4, mounting box; 5, protective housing; 6, first motor; 7, rotating shaft; 8, lower grinding block; 9, lifting block; 10, second motor; 11, round shaft; 12, round disk; 13, round rod; 14, round block; 15, fixed shaft; 16, motor housing; 17, baffle; 18, limit block; 19, placement plate; 20, first round hole; 21, sample box; 22. Limiting plate; 23. Moving plate; 24. Second circular hole; 25. Pneumatic cylinder; 26. Connecting block; 27. Driving motor; 28. Rotating shaft; 29. ​​Circular plate; 30. Articulated rod; 31. Power motor; 32. Double threaded rod; 33. Movable plate; 34. Push-pull rod; 35. Lifting plate; 36. Limiting rod; 37. Test tube; 38. Mounting plate; 39. Drainage tube; 40. Transparent plate; 41. Movable door. DETAILED DESCRIPTION

[0026] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 7As shown, an embodiment of the present invention provides a sample pretreatment device for environmental monitoring, comprising a shell 1, an upper grinding block 2 is fixedly installed on the top of the shell 1, a fixing plate 3 is fixedly installed inside the shell 1, a mounting box 4 is fixedly installed on the upper surface of the fixing plate 3, a protective shell 5 is movably sleeved inside the mounting box 4, a first motor 6 is fixedly installed inside the protective shell 5, a rotating shaft 7 is fixedly connected to the other end of the output shaft of the first motor 6, the top end of the rotating shaft 7 passes through the protective shell 5 and extends to the top of the protective shell 5 and is movably sleeved with the inner wall of the protective shell 5, a lower grinding block 8 is fixedly sleeved on the outer surface of the rotating shaft 7, and a lifting block 8 is fixedly installed on the bottom of the protective shell 5. A lowering block 9, the outer surface of the lifting block 9 is movably connected to the inner wall of the installation box 4, a second motor 10 is fixedly installed on the back of the installation box 4, the other end of the output shaft of the second motor 10 is fixedly connected to a round shaft 11, the front end of the round shaft 11 extends to the interior of the installation box 4 and is movably connected to the inner wall of the installation box 4, a disc 12 is fixedly connected to the outer surface of the round shaft 11, a round rod 13 is fixedly installed on the top of the front side of the disc 12, the outer surface of the round rod 13 is movably connected to the inner wall of the lifting block 9, the front end of the round rod 13 is fixedly connected to a round block 14, the interior of the round block 14 is movably connected to a fixed shaft 15, and the outer surface of the fixed shaft 15 is fixedly connected to the inner wall of the installation box 4.

[0028] The operator can start the second motor 10 so that the circular shaft 11 drives the circular disc 12 to rotate, and then the circular disc 12 can drive the circular rod 13 to rotate with the circular shaft 11 as the axis, so that the circular rod 13 can squeeze and push the inner wall of the lifting block 9, so that the lifting block 9 moves upward, and then the lifting block 9 drives the protective shell 5 to rise, so that the lower grinding block 8 can rise, and then the distance between the lower grinding block 8 and the upper grinding block 2 is adjusted, so as to adjust the grinding fineness of the soil sample, and the top of the fixed plate 3 is tilted from the middle to both sides, so as to avoid the accumulation of ground soil on the top of the fixed plate 3.

[0029] A motor housing 16 is fixedly sleeved on the outer surface of the second motor 10 , and baffles 17 are fixedly installed on both left and right sides of the bottom of the upper grinding block 2 .

[0030] By providing the motor housing 16 , the motor housing 16 can protect the second motor 10 .

[0031] Among them, the interior of the front and back sides of the shell 1 are movably sleeved with limit blocks 18, and a placement plate 19 located inside the shell 1 is fixedly connected between the limit blocks 18. The outer surface of the placement plate 19 is movably connected to the inner surface of the shell 1, and a first circular hole 20 is opened at the bottom of the placement plate 19.

[0032] By providing the first circular hole 20 , the ground soil can leak downward through the first circular hole 20 .

[0033] Among them, a sample box 21 is fixedly installed inside the placement plate 19, and limiting plates 22 are fixedly installed on the left and right sides of the bottom of the placement plate 19. A movable plate 23 is movably connected between the limiting plates 22. The outer surface of the movable plate 23 is movably connected to the bottom of the placement plate 19, and a second circular hole 24 is opened inside the movable plate 23.

[0034] When the first circular hole 20 and the second circular hole 24 overlap, the soil sample in the sample box 21 can fall down.

[0035] Among them, a pneumatic cylinder 25 is fixedly installed on the front side of the right side of the bottom of the placement plate 19, and a connecting block 26 is fixedly connected to the front end of the pneumatic cylinder 25, and the left end of the connecting block 26 is fixedly connected to the outer surface of the movable plate 23.

[0036] The operator can start the pneumatic cylinder 25 so that the pneumatic cylinder 25 drives the movable plate 23 to move through the connecting block 26 , thereby making the second circular hole 24 overlap with the first circular hole 20 .

[0037] Among them, a driving motor 27 is fixedly installed on the right side of the back side of the shell 1, and the other end of the output shaft of the driving motor 27 is fixedly connected to a rotating shaft 28. A circular plate 29 is fixedly sleeved on the outer surface of the rotating shaft 28. A hinge rod 30 is hinged on the top of the back side of the circular plate 29, and the other end of the hinge rod 30 is hinged to the outer surface of the limit block 18.

[0038] The operator can start the driving motor 27 to make the rotating shaft 28 drive the circular plate 29 to rotate, so that the hinge rod 30 can drive the limiting block 18 to move along the inner wall of the housing 1.

[0039] Among them, a power motor 31 is fixedly installed at the bottom of the right side of the shell 1, and the other end of the output shaft of the power motor 31 is fixedly connected to a double-threaded rod 32. The left end of the double-threaded rod 32 penetrates the shell 1 and extends to the interior of the shell 1 and is movably connected to the inner wall of the shell 1. The left and right sides of the outer surface of the double-threaded rod 32 are threadedly connected with a movable plate 33, and the bottom of the movable plate 33 is movably connected to the bottom of the inner surface of the shell 1.

[0040] The threads on the left and right sides of the outer surface of the double-threaded rod 32 are in opposite directions, so that when the double-threaded rod 32 rotates, it can drive the two movable plates 33 to move away from or towards each other.

[0041] Among them, there are two movable plates 33, and the front and rear sides of the two movable plates 33 are hinged with push-pull rods 34 inside, and the top of the push-pull rods 34 is hinged with a lifting plate 35. The left and right sides of the lifting plate 35 are fixedly connected with limiting rods 36. The outer surface of the limiting rod 36 is movably connected to the inner wall of the shell 1, and the inside of the lifting plate 35 is movably connected with a test tube 37.

[0042] When the two movable plates 33 move away from each other, the lifting plate 35 will be driven by the push-pull rod 34 to move downward under the limiting action of the limiting rod 36 .

[0043] Among them, the shell 1 has a mounting plate 38 located above the lifting plate 35 fixedly sleeved inside, the mounting plate 38 has a drainage tube 39 fixedly sleeved inside, a movable door 41 is hinged at the bottom of the front of the shell 1, and a transparent plate 40 is fixedly sleeved at the top of the front of the shell 1.

[0044] By providing the drainage pipe 39 , the drainage pipe 39 can guide the ground soil.

[0045] Working principle and usage process:

[0046] When the operator pre-treats the collected soil sample, he first pours the soil from the top of the upper grinding block 2, and then starts the first motor 6, so that the rotating shaft 7 drives the lower grinding block 8 to rotate, so that the lower grinding block 8 can grind the soil in cooperation with the upper grinding block 2. When the operator needs to adjust the fineness of soil grinding, he can start the second motor 10 to make the circular shaft 11 drive the circular disc 12 to rotate, so that the circular rod 13 can rotate with the circular shaft 11 as the axis, and then the circular rod 13 squeezes and pushes the inner wall of the lifting block 9, thereby driving the lifting block 9 to move downward, so that the lifting block 9 drives the protective shell 5 to move downward, so that the lower grinding block 8 moves downward, and then the distance between the lower grinding block 8 and the upper grinding block 2 becomes larger, so as to adjust the fineness of soil sample grinding, which is convenient for operators to use and improves the grinding efficiency of soil sample pretreatment.

[0047] The ground soil will fall into the interior of the sample box 21. At this time, the operator starts the driving motor 27, so that the rotating shaft 28 drives the circular plate 29 to rotate, and then the hinged rod 30 can drive the limit block 18 to reciprocate back and forth, so that the limit block 18 drives the placement plate 19 to vibrate, and then the soil can be distributed as evenly as possible inside the nine sample boxes 21 under the action of vibration, so that the soil can be divided into nine parts as evenly as possible, which is convenient for the operator to perform different tests on the soil samples later. The operator can observe whether the soil samples vibrate evenly through the transparent plate 40.

[0048] The operator can start the pneumatic cylinder 25 so that the connecting block 26 drives the movable plate 23 to move backward under the limiting action of the limiting plate 22, so that the second circular hole 24 coincides with the first circular hole 20, and then the soil inside the sample box 21 falls down, and then falls into the inside of the test tube 37 under the guidance of the drainage tube 39, so that the soil samples can be filled into the inside of the test tube 37 in batches. When the soil samples are filled, the operator can start the power motor 31 so that the double-threaded rod 32 drives the two movable plates 33 to move in opposite directions, and then the movable plate 33 drives the lifting plate 35 to move downward through the push-pull rod 34, so that the test tube 37 moves downward, so that the operator can open the movable door 41 to take the test tube 37 out of the inside of the lifting plate 35 upward.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sample pretreatment device for environmental monitoring, comprising a housing (1), characterized in that: An upper grinding block (2) is fixedly mounted on the top of the shell (1), a fixing plate (3) is fixedly mounted inside the shell (1), a mounting box (4) is fixedly mounted on the upper surface of the fixing plate (3), a protective shell (5) is movably sleeved inside the mounting box (4), a first motor (6) is fixedly mounted inside the protective shell (5), a rotating shaft (7) is fixedly connected to the other end of the output shaft of the first motor (6), the top end of the rotating shaft (7) passes through the protective shell (5) and extends to the top of the protective shell (5) and is movably sleeved with the inner wall of the protective shell (5), a lower grinding block (8) is fixedly sleeved on the outer surface of the rotating shaft (7), a lifting block (9) is fixedly mounted on the bottom of the protective shell (5), and the outer surface of the lifting block (9) is movably sleeved with the mounting block (8), and a lower grinding block (8) is fixedly mounted on the outer surface of the protective shell (5). The inner wall of the installation box (4) is movably connected, a second motor (10) is fixedly installed on the back of the installation box (4), the other end of the output shaft of the second motor (10) is fixedly connected with a round shaft (11), the front end of the round shaft (11) extends to the inside of the installation box (4) and is movably connected with the inner wall of the installation box (4), the outer surface of the round shaft (11) is fixedly connected with a round disk (12), the top of the front of the round disk (12) is fixedly installed with a round rod (13), the outer surface of the round rod (13) is movably connected with the inner wall of the lifting block (9), the front end of the round rod (13) is fixedly connected with a round block (14), the inside of the round block (14) is movably connected with a fixed shaft (15), and the outer surface of the fixed shaft (15) is fixedly connected with the inner wall of the installation box (4).

2. The sample pretreatment device for environmental monitoring according to claim 1, characterized in that: A motor housing (16) is fixedly sleeved on the outer surface of the second motor (10), and baffles (17) are fixedly mounted on both left and right sides of the bottom of the upper grinding block (2).

3. The sample pretreatment device for environmental monitoring according to claim 1, characterized in that: Limit blocks (18) are movably sleeved inside the front and back sides of the shell (1), a placement plate (19) located inside the shell (1) is fixedly connected between the limit blocks (18), the outer surface of the placement plate (19) is movably connected to the inner surface of the shell (1), and a first circular hole (20) is opened at the bottom of the placement plate (19).

4. The sample pretreatment device for environmental monitoring according to claim 3, characterized in that: A sample box (21) is fixedly installed inside the placement plate (19), and limit plates (22) are fixedly installed on the left and right sides of the bottom of the placement plate (19). A movable plate (23) is movably sleeved between the limit plates (22), and the outer surface of the movable plate (23) is movably connected to the bottom of the placement plate (19), and a second circular hole (24) is opened inside the movable plate (23).

5. The sample pretreatment device for environmental monitoring according to claim 3, characterized in that: A pneumatic cylinder (25) is fixedly installed on the front side of the right bottom of the placement plate (19), a connecting block (26) is fixedly connected to the front end of the pneumatic cylinder (25), and the left end of the connecting block (26) is fixedly connected to the outer surface of the movable plate (23).

6. The sample pretreatment device for environmental monitoring according to claim 1, characterized in that: A drive motor (27) is fixedly mounted on the right side of the back side of the shell (1); the other end of the output shaft of the drive motor (27) is fixedly connected to a rotating shaft (28); a circular plate (29) is fixedly sleeved on the outer surface of the rotating shaft (28); a hinged rod (30) is hinged on the top of the back side of the circular plate (29); the other end of the hinged rod (30) is hinged to the outer surface of the limit block (18).

7. The sample pretreatment device for environmental monitoring according to claim 1, characterized in that: A power motor (31) is fixedly mounted on the bottom of the right side of the shell (1); the other end of the output shaft of the power motor (31) is fixedly connected to a double-threaded rod (32); the left end of the double-threaded rod (32) passes through the shell (1) and extends to the inside of the shell (1) and is movably sleeved with the inner wall of the shell (1); movable plates (33) are threadedly sleeved on the left and right sides of the outer surface of the double-threaded rod (32); the bottom of the movable plate (33) is movably connected to the bottom of the inner surface of the shell (1).

8. The sample pretreatment device for environmental monitoring according to claim 7, characterized in that: There are two movable plates (33), and push-pull rods (34) are hinged inside the front and rear sides of the two movable plates (33). A lifting plate (35) is hinged on the top of the push-pull rod (34). The left and right sides of the lifting plate (35) are fixedly connected to limit rods (36). The outer surface of the limit rod (36) is movably sleeved with the inner wall of the shell (1), and the interior of the lifting plate (35) is movably sleeved with a test tube (37).

9. The sample pretreatment device for environmental monitoring according to claim 1, characterized in that: The shell (1) is internally fixedly sleeved with a mounting plate (38) located above the lifting plate (35), the mounting plate (38) is internally fixedly sleeved with a drainage tube (39), the bottom of the front face of the shell (1) is hinged with a movable door (41), and the top of the front face of the shell (1) is fixedly sleeved with a transparent plate (40).

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