Equipment for rapidly detecting content of rapidly available potassium in soil

Abstract

The invention discloses soil available potassium content rapid detection equipment which comprises a shell, and a first heating chamber, a second heating chamber and a third heating chamber which are used for heating triangular flasks filled with different samples at the same temperature or different temperatures are arranged in the shell. The first heating chamber, the second heating chamber and the third heating chamber are sequentially arranged from top to bottom, and a first oscillation mechanism, a second oscillation mechanism and a third oscillation mechanism which are used for performing reciprocating oscillation on a sample in the triangular flask are respectively arranged in the first heating chamber, the second heating chamber and the third heating chamber. According to the invention, the triangular flasks filled with different samples can be oscillated at the same temperature or at different temperatures and at different oscillation time, and the operation of oscillating another batch of triangular flasks filled with another sample after one batch of triangular flasks filled with one sample are oscillated is not needed, so that the detection efficiency is effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of soil potassium content detection, and in particular relates to a rapid detection device for soil available potassium content. Background Art

[0002] When conducting a rapid test of potassium content in soil, a certain concentration of hydrochloric acid and deionized water are generally first placed in a triangular flask for standby use, a certain amount of granular ion exchange resin is then encapsulated in a non-woven bag, and buried in the flooded paddy field soil to be tested and allowed to stand for a certain period of time. The ion exchange resin bag is then taken out, washed with deionized water, placed in a certain concentration of hydrochloric acid to prevent oxidation and brought back to the laboratory. The triangular flask containing a certain concentration of hydrochloric acid and an ion exchange resin bag is placed in a constant temperature shaker and oscillated at a certain temperature for a certain period of time. The ion exchange resin bag is then taken out and the extract in the triangular flask is filtered into a beaker with medium-speed filter paper. The filtered extract can be used for the determination of fast-acting nutrients and reducing substances. Finally, the nitrogen, phosphorus and potassium in the test solution are simultaneously detected by colorimetry or turbidimetry, that is, the content of each nutrient can be obtained at the same time.

[0003] However, when the existing constant temperature shaker oscillates triangular flasks of different batches and containing different samples, generally, the triangular flasks of one batch containing one sample are oscillated before the triangular flasks of another batch containing another sample are oscillated. The triangular flasks containing different samples cannot be oscillated at the same temperature or different temperatures and different oscillation times at the same time, which affects the efficiency of soil potassium content detection. Therefore, a rapid detection device for soil quick-acting potassium content is designed. Summary of the invention

[0004] In view of the defects or shortcomings of the rapid detection equipment for the quick-acting potassium content in soil, the purpose of the present invention is to provide a rapid detection equipment for the quick-acting potassium content in soil, which can make triangular flasks containing different samples oscillate simultaneously at the same temperature or different temperatures and different oscillation times, and there is no need to oscillate one batch of triangular flasks containing one sample before oscillating another batch of triangular flasks containing another sample, thereby effectively improving the detection efficiency.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0006] The present invention provides a soil quick-acting potassium content rapid detection device, comprising a housing, wherein a first heating chamber, a second heating chamber and a third heating chamber are arranged inside the housing for heating triangular bottles containing different samples at the same temperature or different temperatures, and the first heating chamber, the second heating chamber and the third heating chamber are arranged in sequence from top to bottom, and the first heating chamber, the second heating chamber and the third heating chamber are respectively provided with a first oscillation mechanism, a second oscillation mechanism and a third oscillation mechanism for reciprocating oscillation of the samples in the triangular bottles;

[0007] The first oscillating mechanism, the second oscillating mechanism and the third oscillating mechanism are all provided with a triangular bottle placing assembly for placing the triangular bottle, a limiting assembly for limiting the position of the triangular bottle in the Y-axis direction, and a transmission assembly for driving the triangular bottle placing assembly to reciprocate in the X-axis direction;

[0008] The housing is provided with a driving mechanism for driving the transmission assembly to drive the triangular bottle placement assembly to reciprocate in the X-axis direction.

[0009] Preferably, a reciprocating plate is provided on the triangular bottle placement assembly, a triangular bottle placement groove is provided on the surface of the reciprocating plate, and positioning holes are provided at the four corners of the surface of the reciprocating plate, side plates are installed at the front and rear ends of the outer walls on both sides of the reciprocating plate, and the lower surface of the side plate is connected to the slider through a connecting rod, and a rack is installed on the lower surface of the reciprocating plate.

[0010] Preferably, a limit plate is provided on the limit assembly, and the limit plate is located above the reciprocating plate, a limit hole is provided on the surface of the limit plate, and U-shaped handles are installed on both sides of the upper surface of the limit plate, and positioning columns are installed at the four corners of the lower surface of the limit plate, and the other end of the positioning column is installed in the positioning hole, and the outer wall of the positioning column and the hole wall of the positioning hole are connected by a gap, a magnet block is installed at the other end of the positioning column, and a magnet block is installed at the inner bottom end of the positioning hole, and the magnet block on the positioning column and the magnet block in the positioning hole are magnetically connected.

[0011] Preferably, a partition is provided on the transmission assembly, the partition is installed inside the shell, and the partition is located below the reciprocating plate, a second rotating wheel and a first rotating wheel are respectively provided on both sides above the partition, and second gear teeth and first gear teeth are respectively provided on the circumferential outer walls of the second rotating wheel and the first rotating wheel, a second connecting shaft is installed on the end walls at both ends of the second rotating wheel, the other end of the second connecting shaft is installed on the bearing on the end surface of the second connecting plate, a second driven gear is installed on the other end of the second connecting shaft on one end of the second rotating wheel, and the second connecting plate is installed on the front and rear ends of one side of the upper surface of the partition;

[0012] The end walls at both ends of the first rotating wheel are both equipped with a first connecting shaft, the other end of the first connecting shaft is installed in a bearing on the end surface of the first connecting plate, the other end of the first connecting shaft on one end of the first connecting shaft is installed with a first driven gear, and the first connecting plate is installed at the front and rear ends of the other side of the upper surface of the partition, the rear end of the upper surface of the partition is equipped with a fourth connecting plate, the second rotating shaft is installed in the bearing on the end surface of the fourth connecting plate, the rear end of the second rotating shaft is equipped with a third bevel gear, and the outer wall of the second rotating shaft is equipped with a driving gear;

[0013] The driving gear is meshed with the first driven gear and the second driven gear, the third bevel gear is meshed with the first bevel gear, the first bevel gear is mounted on one end of the first rotating shaft, the other end of the first rotating shaft passes through the bearing on the outer wall of the third connecting plate and is connected to the second bevel gear, and the third connecting plate is mounted on one side of the rear end surface of the upper surface of the partition, and slide rails are installed at the front and rear ends of the upper surface of the partition, the slider on the limit assembly is arranged on the slide rail on the transmission assembly, and the slider and the slide rail are slidably connected.

[0014] Preferably, the driving mechanism is provided with a reduction motor, which is mounted on the upper surface of the support plate, the reduction motor and the support plate are both located inside the protective cover body, and the protective cover body and the support plate are both mounted above the outer wall of one side of the shell, the output shaft on the reduction motor is connected to the third rotating shaft through a coupling, and the other end of the third rotating shaft passes through the bearing on the outer wall of one side of the shell and extends into the second heating chamber to be connected with the fourth bevel gear, the fourth bevel gear is meshed and connected with the sixth bevel gear, the sixth bevel gear is arranged on the outer wall of the fifth rotating shaft, both ends of the fifth rotating shaft pass through the bearings on the surface of the fifth connecting plate, and the fifth connecting plate is mounted on the inner wall of one side of the shell;

[0015] A seventh bevel gear is arranged below the outer wall of the fifth rotating shaft, a fourth rotating shaft and a sixth rotating shaft are arranged at the top and bottom ends of the fifth rotating shaft respectively, the top end of the fourth rotating shaft passes through the bearing on the surface of the partition on the first oscillating mechanism and extends into the first heating chamber to be connected with the fifth bevel gear, the bottom end of the sixth rotating shaft passes through the bearing on the surface of the partition on the second oscillating mechanism and is installed in the bearing on the surface of the partition on the third oscillating mechanism, an eighth bevel gear is installed on the outer wall of the sixth rotating shaft, and the eighth bevel gear is located in the third heating chamber;

[0016] The fifth bevel gear is meshed and connected with the second bevel gear on the first oscillating mechanism, the seventh bevel gear is meshed and connected with the second bevel gear on the second oscillating mechanism, and the eighth bevel gear is meshed and connected with the second bevel gear on the third oscillating mechanism.

[0017] Preferably, a first mounting groove is provided at the bottom end of the fourth rotating shaft, a first electromagnet is installed at the top end inside the first mounting groove, a first limiting groove is provided on the groove wall of the first mounting groove, there are six first limiting grooves, and the six first limiting grooves are distributed in a ring-shaped array, a second mounting groove is provided at the top end of the fifth rotating shaft, a second electromagnet is installed at the bottom end inside the second mounting groove, a second limiting groove is provided on the groove wall of the second mounting groove, there are six second limiting grooves, and the six second limiting grooves are distributed in a ring-shaped array, a first sliding column is provided inside the second mounting groove, and there is a clearance fit between the outer wall of the first sliding column and the groove wall of the first mounting groove and the second mounting groove, a first iron block and a second iron block are installed at the top and bottom ends of the first sliding column respectively, a first limiting block is installed on the circumferential outer wall of the first sliding column, there are six first limiting blocks, and the six first limiting blocks are distributed in a ring-shaped array, and there is a clearance fit between the outer wall of the first limiting block and the groove wall of the first limiting groove and the second limiting groove.

[0018] Preferably, a third mounting groove is provided at the bottom end of the fifth rotating shaft, a third electromagnet is installed at the top end inside the third mounting groove, a third limiting groove is provided on the groove wall of the third mounting groove, there are six third limiting grooves, and the six third limiting grooves are distributed in a ring array, a fourth mounting groove is provided at the top end of the sixth rotating shaft, a fourth electromagnet is installed at the bottom end inside the fourth mounting groove, a fourth limiting groove is provided on the groove wall of the fourth mounting groove, there are six fourth limiting grooves, and the six fourth limiting grooves are distributed in a ring array, a second sliding column is arranged inside the fourth mounting groove, and the outer wall of the second sliding column and the groove wall of the third mounting groove and the fourth mounting groove are all clearance fit, a third iron block and a fourth iron block are respectively installed at the top and bottom ends of the second sliding column, a second limiting block is installed on the circumferential outer wall of the second sliding column, there are six second limiting blocks, and the six second limiting blocks are distributed in a ring array, and the outer wall of the second limiting block and the groove wall of the third limiting groove and the fourth limiting groove are clearance fit.

[0019] Preferably, the first heating chamber, the second heating chamber and the third heating chamber are all provided with electric heating plates and temperature detection sensors, and the electric heating plates and the temperature detection sensors are respectively installed on the inner walls on both sides of the shell, and a control box is installed above the outer wall on the other side of the shell. The first heating chamber is arranged between the top end of the shell and the upper surface of the partition on the first oscillation mechanism, the second heating chamber is arranged between the lower surface of the upper partition of the first oscillation mechanism and the upper surface of the partition on the second oscillation mechanism, and the third heating chamber is arranged between the lower surface of the upper partition of the second oscillation mechanism and the upper surface of the partition on the third oscillation mechanism.

[0020] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0021] 1. In the present invention, through the coordinated arrangement of a series of structures, when the staff performs an oscillation operation on the triangular bottles containing different samples, the staff places the triangular bottles containing three different samples on the first oscillation mechanism, the second oscillation mechanism and the third oscillation mechanism respectively, and the staff starts the device. The start of the driving mechanism will drive the first oscillation mechanism, the second oscillation mechanism and the third oscillation mechanism to perform oscillation operations on the triangular bottles containing three different samples respectively. The staff can control whether the first oscillation mechanism or the second oscillation mechanism performs an oscillation operation by controlling the connection state between the fifth rotating shaft and the fourth rotating shaft or the connection state between the fifth rotating shaft and the sixth rotating shaft. When the sample in the triangular bottle on the first oscillation mechanism is oscillated, , the staff makes the connection between the fifth rotating shaft and the fourth rotating shaft in a disconnected state, and the first oscillation mechanism does not perform an oscillation operation. After the oscillation of the sample in the triangular flask on the third oscillation mechanism is completed, the staff makes the connection between the fifth rotating shaft and the sixth rotating shaft in a disconnected state, and the third oscillation mechanism does not perform an oscillation operation. When the oscillation of the sample in the triangular flask on the second oscillation mechanism is completed, the staff directly turns off the reduction motor on the driving mechanism to prevent the second oscillation mechanism from performing an oscillation operation. Therefore, the staff controls the three different samples to perform oscillation operations at the same time at different oscillation times by controlling whether the first oscillation mechanism, the second oscillation mechanism and the third oscillation mechanism perform oscillation operations.

[0022] 2. In the present invention, through the coordinated arrangement of a series of structures, the first heating chamber, the second heating chamber and the third heating chamber are all provided with electric heating plates and temperature detection sensors, the three electric heating plates can heat the first heating chamber, the second heating chamber and the third heating chamber respectively, the three temperature detection sensors can detect the temperatures in the first heating chamber, the second heating chamber and the third heating chamber respectively, the staff sets the heating temperatures of the first heating chamber, the second heating chamber and the third heating chamber, when the temperature data value detected by the temperature detection sensor in the first heating chamber reaches a preset temperature data value range, the single-chip microcomputer in the control box turns off the electric heating plate in the first heating chamber, when the temperature data value detected by the temperature detection sensor in the first heating chamber is lower than the preset temperature data value range, the single-chip microcomputer in the control box turns on the electric heating plate in the first heating chamber to heat the first heating chamber, and when the temperature data value detected by the temperature detection sensor in the second heating chamber reaches a preset temperature data value range, the single-chip microcomputer in the control box turns on the electric heating plate in the first heating chamber to heat the first heating chamber, When the measured temperature data value reaches the preset temperature data value range, the single chip microcomputer in the control box turns off the electric heating plate in the second heating chamber; when the temperature data value detected by the temperature detection sensor in the second heating chamber is lower than the preset temperature data value range, the single chip microcomputer in the control box turns on the electric heating plate in the second heating chamber to heat the second heating chamber; when the temperature data value detected by the temperature detection sensor in the third heating chamber reaches the preset temperature data value range, the single chip microcomputer in the control box turns off the electric heating plate in the third heating chamber; when the temperature data value detected by the temperature detection sensor in the third heating chamber is lower than the preset temperature data value range, the single chip microcomputer in the control box turns on the electric heating plate in the third heating chamber to heat the third heating chamber, so that the staff can control the temperatures in the first heating chamber, the second heating chamber and the third heating chamber, so that three different samples can oscillate simultaneously at the same temperature or different temperatures.

[0023] Therefore, it can be seen from the above that the present invention can make the flasks containing different samples oscillate simultaneously at the same temperature or different temperatures and different oscillation times, and there is no need to oscillate one batch of flasks containing one sample and then oscillate another batch of flasks containing another sample, thereby effectively improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0025] Figure 1 The overall cross-sectional structure of the present invention is schematically shown Figure 1 .

[0026] Figure 2 The overall cross-sectional structure of the present invention is schematically shown Figure 2 .

[0027] Figure 3 The structure diagram of the first oscillating mechanism, the second oscillating mechanism and the third oscillating mechanism of the present invention is shown in FIG. Figure 1 .

[0028] Figure 4 The structure diagram of the first oscillating mechanism, the second oscillating mechanism and the third oscillating mechanism of the present invention is shown in FIG. Figure 2 .

[0029] Figure 5 The structure of the transmission assembly of the present invention is shown in FIG. Figure 1 .

[0030] Figure 6 The structure of the transmission assembly of the present invention is shown in FIG. Figure 2 .

[0031] Figure 7 The structure diagram of the triangular bottle placement assembly of the present invention is shown in FIG. Figure 1 .

[0032] Figure 8 The structure diagram of the triangular bottle placement assembly of the present invention is shown in FIG. Figure 2 .

[0033] Fig. 9 The structure of the limit assembly of the present invention is shown in FIG. Figure 1 .

[0034] Fig.10 The structure of the limit assembly of the present invention is shown in FIG. Figure 2 .

[0035] Fig.11 It is a structural schematic diagram of the driving mechanism of the present invention.

[0036] Fig.12 It is a cross-sectional view of the driving mechanism of the present invention.

[0037] Fig.13 The present invention Fig.12 Schematic diagram of the local enlarged structure at A in the figure.

[0038] Fig.14 The present invention Fig.12 Schematic diagram of the local enlarged structure at B in the figure.

[0039] Fig.15 It is a schematic diagram of the overall structure of the present invention.

[0040] In the figure:

[0041] 100, housing; 110, protective cover; 120, first heating chamber; 130, second heating chamber; 140, third heating chamber; 150, temperature detection sensor; 160, electric heating plate; 170, control box;

[0042] 200, first oscillating mechanism; 210, triangular bottle placing assembly; 220, limiting assembly; 230, transmission assembly;

[0043] 211, reciprocating plate; 212, triangular bottle placement slot; 213, positioning hole; 214, side plate; 215, connecting rod; 216, slider; 217, rack;

[0044] 221, U-shaped handle; 222, limiting hole; 223, positioning column; 224, limiting plate;

[0045] 231, partition; 2311, slide rail; 2312, first connecting plate; 2313, second connecting plate; 2314, third connecting plate; 2315, fourth connecting plate; 232, first rotating wheel; 2321, first gear; 2322, first driven gear; 2323, first connecting shaft; 233, second rotating wheel; 2331, second gear; 2332, second driven gear; 2333, second connecting shaft; 234, first rotating shaft; 2341, first bevel gear; 2342, second bevel gear; 235, second rotating shaft; 2351, driving gear; 2352, third bevel gear;

[0046] 300, second oscillating mechanism;

[0047] 400, a third oscillating mechanism;

[0048] 500, driving mechanism; 510, reduction motor; 520, third rotating shaft; 521, fourth bevel gear; 530, fourth rotating shaft; 531, fifth bevel gear; 532, first mounting groove; 533, first electromagnet; 534, first limiting groove; 540, fifth rotating shaft; 541, sixth bevel gear; 542, seventh bevel gear; 543, second limiting groove; 544, second mounting groove; 545, second electromagnet; 546, first slide column; 5 461, the first iron block; 5462, the second iron block; 5463, the first limiting block; 547, the third mounting slot; 548, the third electromagnet; 549, the third limiting slot; 550, the sixth rotating shaft; 551, the eighth bevel gear; 552, the fourth limiting slot; 553, the fourth mounting slot; 554, the fourth electromagnet; 555, the second sliding column; 5551, the third iron block; 5552, the fourth iron block; 5553, the second limiting block; 560, the fifth connecting plate. DETAILED DESCRIPTION

[0049] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0050] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0051] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0052] like Figure 1-15 As shown, a soil available potassium content rapid detection device includes a housing 100, wherein a first heating chamber 120, a second heating chamber 130 and a third heating chamber 140 are arranged inside the housing 100 for heating triangular bottles containing different samples at the same temperature or different temperatures, and the first heating chamber 120, the second heating chamber 130 and the third heating chamber 140 are arranged in sequence from top to bottom, and a first oscillation mechanism 200, a second oscillation mechanism 300 and a third oscillation mechanism 400 for reciprocating oscillation of the samples in the triangular bottles are respectively arranged in the first heating chamber 120, the second heating chamber 130 and the third heating chamber 140;

[0053] The first oscillating mechanism 200, the second oscillating mechanism 300 and the third oscillating mechanism 400 are all provided with a triangular bottle placing assembly 210 for placing the triangular bottle, a limiting assembly 220 for limiting the position of the triangular bottle in the Y-axis direction, and a transmission assembly 230 for driving the triangular bottle placing assembly 210 to reciprocate in the X-axis direction;

[0054] The housing 100 is provided with a driving mechanism 500 for driving the transmission assembly 230 to drive the triangular bottle placement assembly 210 to reciprocate in the X-axis direction.

[0055] A reciprocating plate 211 is provided on the triangular bottle placement assembly 210, and a triangular bottle placement groove 212 is provided on the surface of the reciprocating plate 211, and the triangular bottle can be placed in the triangular bottle placement groove 212, and positioning holes 213 are provided at the four corners of the surface of the reciprocating plate 211, and side plates 214 are installed at the front and rear ends of the outer walls on both sides of the reciprocating plate 211, and the lower surface of the side plate 214 is connected to the slider 216 through a connecting rod 215, and a rack 217 is installed on the lower surface of the reciprocating plate 211.

[0056] A limiting plate 224 is provided on the limiting assembly 220, and the limiting plate 224 is located above the reciprocating plate 211. A limiting hole 222 is provided on the surface of the limiting plate 224, and U-shaped handles 221 are installed on both sides of the upper surface of the limiting plate 224. The matching arrangement of the limiting plate 224 and the limiting hole 222 can limit the triangular bottle in the triangular bottle placement groove 212 in the Y-axis direction, thereby preventing the triangular bottle in the triangular bottle placement groove 212 from moving out of the triangular bottle placement groove 212 when the triangular bottle is reciprocating in the X-axis direction. Positioning posts 223 are installed at the four corners of the surface, and the other end of the positioning post 223 is installed in the positioning hole 213. The outer wall of the positioning post 223 and the hole wall of the positioning hole 213 are connected with a gap. A magnet block is installed at the other end of the positioning post 223, and a magnet block is installed at the inner bottom end of the positioning hole 213. The magnet block on the positioning post 223 and the magnet block in the positioning hole 213 are magnetically connected. The coordinated arrangement of the positioning post 223, the positioning hole 213, the magnet block and other structures makes it convenient for the staff to remove the limit assembly 220 from the triangular bottle placement assembly 210.

[0057] A partition 231 is provided on the transmission assembly 230, and the partition 231 is installed inside the housing 100, and the partition 231 is located below the reciprocating plate 211, and a second rotating wheel 233 and a first rotating wheel 232 are respectively provided on both sides above the partition 231, and second gear teeth 2331 and first gear teeth 2321 are respectively provided on the circumferential outer walls of the second rotating wheel 233 and the first rotating wheel 232, and a second connecting shaft 2333 is installed on the end walls at both ends of the second rotating wheel 233, and the other end of the second connecting shaft 2333 is installed on the bearing on the end surface of the second connecting plate 2313, and a second driven gear 2332 is installed on the other end of the second connecting shaft 2333 on one end of the second rotating wheel 233, and the second connecting plate 2313 is installed on the front and rear ends of one side of the upper surface of the partition 231;

[0058] The end walls at both ends of the first rotating wheel 232 are both installed with a first connecting shaft 2323, the other end of the first connecting shaft 2323 is installed in a bearing on the end surface of the first connecting plate 2312, the other end of the first connecting shaft 2323 on one end of the first connecting shaft 2323 is installed with a first driven gear 2322, and the first connecting plate 2312 is installed at the front and rear ends of the other side of the upper surface of the partition 231, the rear end of the upper surface of the partition 231 is installed with a fourth connecting plate 2315, the second rotating shaft 235 is installed in a bearing on the end surface of the fourth connecting plate 2315, the rear end of the second rotating shaft 235 is installed with a third bevel gear 2352, and the outer wall of the second rotating shaft 235 is installed with a driving gear 2351;

[0059] The driving gear 2351 is meshed with the first driven gear 2322 and the second driven gear 2332, the third bevel gear 2352 is meshed with the first bevel gear 2341, the first bevel gear 2341 is mounted on one end of the first rotating shaft 234, the other end of the first rotating shaft 234 passes through the bearing on the outer wall of the third connecting plate 2314 and is connected to the second bevel gear 2342, and the third connecting plate 2314 is mounted on one side of the rear end surface of the upper surface of the partition 231, and the front and rear ends of the upper surface of the partition 231 are both installed with slide rails 2311, the slider 216 on the limit assembly 220 is arranged on the slide rail 2311 on the transmission assembly 230, and the slider 216 and the slide rail 2311 are slidably connected, the matching arrangement of the slider 216 and the slide rail 2311 can play a role of limiting and guiding the movement of the reciprocating plate 211, thereby enhancing the stability of the reciprocating movement of the reciprocating plate 211 in the X-axis direction.

[0060] The driving mechanism 500 is provided with a reduction motor 510, which is mounted on the upper surface of the support plate. The reduction motor 510 and the support plate are both located inside the protective cover body 110, and the protective cover body 110 and the support plate are both mounted above the outer wall of one side of the housing 100. A heat dissipation hole is opened on the outer wall of one side of the protective cover body 110 for naturally dissipating the heat inside the protective cover body 110. The protective cover body 110 can protect the reduction motor 510. The output shaft on the reduction motor 510 is connected to the protective cover body 110. The third rotating shaft 520 is connected to the third rotating shaft 520 through a coupling, and the other end of the third rotating shaft 520 passes through the bearing on the outer wall of one side of the shell 100 and extends into the second heating chamber 130 to be connected to the fourth bevel gear 521, the fourth bevel gear 521 is meshed and connected with the sixth bevel gear 541, and the sixth bevel gear 541 is arranged on the outer wall of the fifth rotating shaft 540, and both ends of the fifth rotating shaft 540 pass through the bearings on the surface of the fifth connecting plate 560, and the fifth connecting plate 560 is installed on the inner wall of one side of the shell 100;

[0061] A seventh bevel gear 542 is arranged below the outer wall of the fifth rotating shaft 540, and a fourth rotating shaft 530 and a sixth rotating shaft 550 are arranged at the top and bottom ends of the fifth rotating shaft 540 respectively. The top end of the fourth rotating shaft 530 passes through the bearing on the surface of the partition 231 on the first oscillating mechanism 200 and extends to the first heating chamber 120 to be connected with the fifth bevel gear 531. The bottom end of the sixth rotating shaft 550 passes through the bearing on the surface of the partition 231 on the second oscillating mechanism 300 and is installed in the bearing on the surface of the partition 231 on the third oscillating mechanism 400. An eighth bevel gear 551 is installed on the outer wall of the sixth rotating shaft 550, and the eighth bevel gear 551 is located in the third heating chamber 140.

[0062] The fifth bevel gear 531 is meshedly connected with the second bevel gear 2342 on the first oscillating mechanism 200, the seventh bevel gear 542 is meshedly connected with the second bevel gear 2342 on the second oscillating mechanism 300, and the eighth bevel gear 551 is meshedly connected with the second bevel gear 2342 on the third oscillating mechanism 400. When the reduction motor 510 is started, it will drive the third rotating shaft 520 and the fourth bevel gear 521 to rotate. When the fourth bevel gear 521 rotates, it will drive the fifth rotating shaft 540 to rotate. When the fifth rotating shaft 540 is in a connected state with the fourth rotating shaft 530 or the fifth rotating shaft 540 is in a connected state with the sixth rotating shaft 550, the fifth rotating shaft 540 will drive the fourth rotating shaft 530 and the sixth rotating shaft 550. 550 rotates, when the fifth rotating shaft 540 is not connected to the fourth rotating shaft 530 or the fifth rotating shaft 540 is not connected to the sixth rotating shaft 550, the fifth rotating shaft 540 will not drive the fourth rotating shaft 530 and the sixth rotating shaft 550 to rotate, when the fifth rotating shaft 540 drives the fourth rotating shaft 530 and the sixth rotating shaft 550 to rotate, the fifth bevel gear 531, the seventh bevel gear 542 and the eighth bevel gear 551 will rotate, and when the fifth bevel gear 531, the seventh bevel gear 542 and the eighth bevel gear 551 rotate, they will respectively drive the first oscillation mechanism 200, the second oscillation mechanism 300 and the second bevel gear 2342 on the third oscillation mechanism 400 to rotate, The rotation of the second bevel gear 2342 will drive the first rotating shaft 234 and the first bevel gear 2341 to rotate, the rotation of the first bevel gear 2341 will drive the third bevel gear 2352 to rotate, the rotation of the third bevel gear 2352 will drive the second rotating shaft 235 and the driving gear 2351 to rotate, the rotation of the driving gear 2351 will drive the first driven gear 2322 and the second driven gear 2332 to rotate, and the first driven gear 2322 rotates in the opposite direction to the second driven gear 2332, the rotation of the first driven gear 2322 and the second driven gear 2332 will respectively drive the first rotating wheel 232 and the second rotating wheel 233 to rotate, and the first rotating wheel 232 and the second rotating wheel 233 rotate. The first gear teeth 2321 and the second gear teeth 2331 are driven to rotate respectively. Since the first driven gear 2322 and the second driven gear 2332 rotate in opposite directions, the first gear teeth 2321 on the first rotating wheel 232 rotate in opposite directions to the second gear teeth 2331 on the second rotating wheel 233. When the first gear teeth 2321 on the first rotating wheel 232 rotate forward or reverse, the first gear teeth 2321 are meshed with the rack 217 and drive the reciprocating plate 211 to move left or right. When the second gear teeth 2331 on the second rotating wheel 233 rotate forward or reverse, the second gear teeth 2331 are meshed with the rack 217 and drive the reciprocating plate 211 to move left or right.The first rotating wheel 232 rotates and drives the reciprocating plate 211 to move in a direction opposite to the direction in which the second rotating wheel 233 rotates and drives the reciprocating plate 211 to move, so that the rotation of the first rotating wheel 232 and the second rotating wheel 233 causes the reciprocating plate 211 to reciprocate in the X-axis direction.

[0063] A first mounting groove 532 is provided at the bottom end of the fourth rotating shaft 530, a first electromagnet 533 is installed at the top end of the first mounting groove 532, a first limiting groove 534 is provided on the groove wall of the first mounting groove 532, there are six first limiting grooves 534, and the six first limiting grooves 534 are distributed in a ring array, a second mounting groove 544 is provided at the top end of the fifth rotating shaft 540, a second electromagnet 545 is installed at the bottom end of the second mounting groove 544, a second limiting groove 543 is provided on the groove wall of the second mounting groove 544, there are six second limiting grooves 543, and the six second limiting grooves 543 are distributed in a ring array, and a first sliding column is provided inside the second mounting groove 544 546, and there is a clearance fit between the outer wall of the first slide post 546 and the groove wall of the first installation groove 532 and the second installation groove 544, the top and bottom ends of the first slide post 546 are respectively installed with the first iron block 5461 and the second iron block 5462, and the first slide post 546 is installed with a first limit block 5463 on the circumferential outer wall, and there are six first limit blocks 5463, and the six first limit blocks 5463 are distributed in a ring array, and there is a clearance fit between the outer wall of the first limit block 5463 and the groove wall of the first limit groove 534 and the second limit groove 543, and the first limit block 5463, the first limit groove 534 and the second limit groove 543 are arranged in a coordinated manner, and the first limit block 5463, the first limit groove 534 and the second limit groove 543 can be adjusted to the first slide post. The movement of 546 plays a role of limiting guide. When the staff controls the connection state between the fourth rotating shaft 530 and the fifth rotating shaft 540, the staff controls whether the first electromagnet 533 and the second electromagnet 545 are powered on and have magnetism. When the staff controls the first electromagnet 533 to be powered on and have magnetism, and the second electromagnet 545 is powered off and has no magnetism, the first electromagnet 533 will adsorb the first iron block 5461 on the first sliding column 546. When the first electromagnet 533 is magnetically connected to the first iron block 5461, a part of the first sliding column 546 itself will be in the first mounting groove 532. At this time, the fourth rotating shaft 530 and the fifth rotating shaft 540 are connected. 540 are in a connected state, and when the fifth shaft 540 rotates, it will drive the fourth shaft 530 to rotate. When the staff controls the second electromagnet 545 to be energized and magnetic, and the first electromagnet 533 is powered off and has no magnetism, the second electromagnet 545 will adsorb the second iron block 5462 on the first slide column 546. When the second electromagnet 545 is magnetically connected to the second iron block 5462, the first slide column 546 itself will be completely in the second mounting groove 544. At this time, the fifth shaft 540 and the fourth shaft 530 are in a disconnected state, and when the fifth shaft 540 rotates, it will not drive the fourth shaft 530 to rotate.

[0064] A third mounting groove 547 is provided at the bottom end of the fifth rotating shaft 540, a third electromagnet 548 is installed at the top end of the third mounting groove 547, a third limiting groove 549 is provided on the groove wall of the third mounting groove 547, there are six third limiting grooves 549, and the six third limiting grooves 549 are distributed in a ring array, a fourth mounting groove 553 is provided at the top end of the sixth rotating shaft 550, a fourth electromagnet 554 is installed at the bottom end of the fourth mounting groove 553, a fourth limiting groove 552 is provided on the groove wall of the fourth mounting groove 553, there are six fourth limiting grooves 552, and the six fourth limiting grooves 552 are distributed in a ring array, and a second sliding column is provided inside the fourth mounting groove 553 555, and there is a clearance fit between the outer wall of the second slide post 555 and the groove walls of the third mounting groove 547 and the fourth mounting groove 553, the top and bottom ends of the second slide post 555 are respectively installed with a third iron block 5551 and a fourth iron block 5552, and a second limit block 5553 is installed on the circumferential outer wall of the second slide post 555, and there are six second limit blocks 5553, and the six second limit blocks 5553 are distributed in a ring array, and there is a clearance fit between the outer wall of the second limit block 5553 and the groove walls of the third limit groove 549 and the fourth limit groove 552, and the second limit block 5553, the third limit groove 549 and the fourth limit groove 552 are arranged in a coordinated manner, so that the second slide post can be adjusted. The movement of 555 plays a role of limiting guide. When the staff controls the connection state between the sixth rotating shaft 550 and the fifth rotating shaft 540, the staff controls whether the third electromagnet 548 and the fourth electromagnet 554 are powered on and have magnetism. When the staff controls the third electromagnet 548 to be powered on and have magnetism, and the fourth electromagnet 554 is powered off and has no magnetism, the third electromagnet 548 will adsorb the third iron block 5551 on the second sliding column 555. When the third electromagnet 548 is magnetically connected to the third iron block 5551, a part of the second sliding column 555 itself will be in the third mounting groove 547. At this time, the sixth rotating shaft 550 and the fifth rotating shaft are connected. 540 are in a connected state, and when the fifth shaft 540 rotates, the sixth shaft 550 will be driven to rotate. When the staff controls the fourth electromagnet 554 to be energized and magnetic, and the third electromagnet 548 is powered off and not magnetic, the fourth electromagnet 554 will adsorb the fourth iron block 5552 on the second slide column 555. When the fourth electromagnet 554 is magnetically connected to the fourth iron block 5552, the second slide column 555 itself will be completely in the fourth mounting groove 553. At this time, the fifth shaft 540 and the sixth shaft 550 are in a disconnected state, and when the fifth shaft 540 rotates, it will not drive the sixth shaft 550 to rotate.

[0065] The first heating chamber 120, the second heating chamber 130 and the third heating chamber 140 are all provided with an electric heating plate 160 and a temperature detection sensor 150, and the electric heating plate 160 and the temperature detection sensor 150 are respectively installed on the inner walls on both sides of the shell 100, and a control box 170 is installed above the outer wall on the other side of the shell 100. The first heating chamber 120 is arranged between the top of the shell 100 and the upper surface of the partition 231 on the first oscillation mechanism 200, the second heating chamber 130 is arranged between the lower surface of the partition 231 on the first oscillation mechanism 200 and the upper surface of the partition 231 on the second oscillation mechanism 300, and the third heating chamber 140 is arranged between the lower surface of the partition 231 on the second oscillation mechanism 300 and the upper surface of the partition 231 on the third oscillation mechanism 400.

[0066] When in use, the external power supply is turned on. When the staff performs oscillation operation on the triangular bottles containing different samples, the staff places the triangular bottles containing three different samples on the first oscillation mechanism 200, the second oscillation mechanism 300 and the third oscillation mechanism 400 respectively. The staff starts the device, and the driving mechanism 500 starts to drive the first oscillation mechanism 200, the second oscillation mechanism 300 and the third oscillation mechanism 400 to perform oscillation operation on the triangular bottles containing three different samples respectively. The staff can control whether the first oscillation mechanism 200 or the second oscillation mechanism 300 performs oscillation operation by controlling the connection state between the fifth rotating shaft 540 and the fourth rotating shaft 530 or the connection state between the fifth rotating shaft 540 and the sixth rotating shaft 550. When the sample in the triangular bottle on the first oscillation mechanism 200 is oscillated, the staff makes the connection between the fifth rotating shaft 540 and the fourth rotating shaft 530 in a disconnected state, and the first oscillation mechanism 200 does not perform an oscillation operation. When the sample in the triangular bottle on the third oscillation mechanism 400 is oscillated, the staff makes the connection between the fifth rotating shaft 540 and the sixth rotating shaft 550 in a disconnected state, and the third oscillation mechanism 400 does not perform an oscillation operation. When the sample in the triangular bottle on the second oscillation mechanism 300 is oscillated, the staff directly turns off the reduction motor 510 on the driving mechanism 500 to prevent the second oscillation mechanism 300 from performing an oscillation operation, thereby the staff controls the first The oscillation mechanism 200, the second oscillation mechanism 300 and the third oscillation mechanism 400 are controlled to perform oscillation operation at the same time for three different samples at different oscillation times. The first heating chamber 120, the second heating chamber 130 and the third heating chamber 140 are each provided with an electric heating plate 160 and a temperature detection sensor 150. The three electric heating plates 160 can heat the first heating chamber 120, the second heating chamber 130 and the third heating chamber 140 respectively. The three temperature detection sensors 150 can detect the temperature in the first heating chamber 120, the second heating chamber 130 and the third heating chamber 140 respectively. The staff sets the heating temperature of the first heating chamber 120, the second heating chamber 130 and the third heating chamber 140. When the temperature data value detected by the temperature detection sensor 150 in the first heating chamber 120 reaches within the preset temperature data value range, the single-chip microcomputer in the control box 170 turns off the electric heating plate 160 in the first heating chamber 120; when the temperature data value detected by the temperature detection sensor 150 in the first heating chamber 120 is lower than the preset temperature data value range, the single-chip microcomputer in the control box 170 turns on the electric heating plate 160 in the first heating chamber 120 to heat the first heating chamber 120; when the temperature data value detected by the temperature detection sensor 150 in the second heating chamber 130 reaches within the preset temperature data value range, the single-chip microcomputer in the control box 170 turns off the electric heating plate 160 in the second heating chamber 130.When the temperature data value detected by the temperature detection sensor 150 in the second heating chamber 130 is lower than the preset temperature data value range, the single chip microcomputer in the control box 170 turns on the electric heating plate 160 in the second heating chamber 130 to heat the second heating chamber 130. When the temperature data value detected by the temperature detection sensor 150 in the third heating chamber 140 reaches the preset temperature data value range, the single chip microcomputer in the control box 170 turns off the electric heating plate 160 in the third heating chamber 140. When the temperature data value detected by the temperature detection sensor 150 in the third heating chamber 140 is lower than the preset temperature data value range, The single chip microcomputer in the control box 170 turns on the electric heating plate 160 in the third heating chamber 140 to heat the third heating chamber 140, so that the staff can control the temperature in the first heating chamber 120, the second heating chamber 130 and the third heating chamber 140, and the three different samples can be oscillated at the same temperature or different temperatures at the same time. Therefore, the present invention can make the triangular bottles containing different samples oscillate at the same temperature or different temperatures and different oscillation times at the same time, and it is not necessary to oscillate the triangular bottles containing one sample in one batch before oscillating the triangular bottles containing another sample in another batch, which effectively improves the detection efficiency.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A soil available potassium content rapid detection device, comprising a housing (100), characterized in that: The housing (100) is provided with a first heating chamber (120), a second heating chamber (130) and a third heating chamber (140) for heating flasks containing different samples at the same temperature or different temperatures, and the first heating chamber (120), the second heating chamber (130) and the third heating chamber (140) are arranged in sequence from top to bottom, and the first heating chamber (120), the second heating chamber (130) and the third heating chamber (140) are respectively provided with a first oscillation mechanism (200), a second oscillation mechanism (300) and a third oscillation mechanism (400) for reciprocatingly oscillating the samples in the flasks; The first oscillating mechanism (200), the second oscillating mechanism (300) and the third oscillating mechanism (400) are all provided with a triangular bottle placement assembly (210) for placing the triangular bottle, a limiting assembly (220) for limiting the position of the triangular bottle in the Y-axis direction, and a transmission assembly (230) for driving the triangular bottle placement assembly (210) to reciprocate in the X-axis direction; The housing (100) is provided with a driving mechanism (500) for driving the transmission assembly (230) to drive the triangular bottle placement assembly (210) to reciprocate in the X-axis direction.

2. The soil available potassium content rapid detection device according to claim 1, characterized in that: The triangular bottle placement assembly (210) is provided with a reciprocating plate (211), a triangular bottle placement groove (212) is provided on the surface of the reciprocating plate (211), and positioning holes (213) are provided at four corners of the surface of the reciprocating plate (211), side plates (214) are installed at both front and rear ends of the outer walls on both sides of the reciprocating plate (211), and the lower surface of the side plate (214) is connected to a slider (216) through a connecting rod (215), and a rack (217) is installed on the lower surface of the reciprocating plate (211).

3. The rapid detection device for soil available potassium content according to claim 2 is characterized in that: A limiting plate (224) is arranged on the limiting assembly (220), and the limiting plate (224) is located above the reciprocating plate (211); a limiting hole (222) is arranged on the surface of the limiting plate (224), and U-shaped handles (221) are installed on both sides of the upper surface of the limiting plate (224); positioning columns (223) are installed at four corners of the lower surface of the limiting plate (224); the other end of the positioning column (223) is installed in the positioning hole (213), and the outer wall of the positioning column (223) and the hole wall of the positioning hole (213) are connected by a gap; a magnet block is installed at the other end of the positioning column (223), and a magnet block is installed at the inner bottom end of the positioning hole (213), and the magnet block on the positioning column (223) and the magnet block in the positioning hole (213) are magnetically connected.

4. The rapid detection device for soil available potassium content according to claim 3 is characterized in that: The transmission assembly (230) is provided with a partition (231), the partition (231) is installed inside the housing (100), and the partition (231) is located below the reciprocating plate (211), and the second rotating wheel (233) and the first rotating wheel (232) are respectively provided on both sides above the partition (231), and the second rotating wheel (233) and the first rotating wheel (232) are respectively provided with second gear teeth (2331) and first gear teeth (2332). (2321), the end walls at both ends of the second rotating wheel (233) are both installed with a second connecting shaft (2333), the other end of the second connecting shaft (2333) is installed on the bearing on the end surface of the second connecting plate (2313), the other end of the second connecting shaft (2333) on one end of the second rotating wheel (233) is installed with a second driven gear (2332), and the second connecting plate (2313) is installed at the front and rear ends of one side of the upper surface of the partition (231); The end walls at both ends of the first rotating wheel (232) are both installed with a first connecting shaft (2323), the other end of the first connecting shaft (2323) is installed in a bearing on the end surface of the first connecting plate (2312), the other end of the first connecting shaft (2323) on one end of the first connecting shaft (2323) is installed with a first driven gear (2322), and the first connecting plate (2312) is installed at the front and rear ends of the other side of the upper surface of the partition (231), the rear end of the upper surface of the partition (231) is installed with a fourth connecting plate (2315), the second rotating shaft (235) is installed in a bearing on the end surface of the fourth connecting plate (2315), the rear end of the second rotating shaft (235) is installed with a third bevel gear (2352), and the outer wall of the second rotating shaft (235) is installed with a driving gear (2351); The driving gear (2351) is meshedly connected with the first driven gear (2322) and the second driven gear (2332); the third bevel gear (2352) is meshedly connected with the first bevel gear (2341); the first bevel gear (2341) is mounted on one end of the first rotating shaft (234); the other end of the first rotating shaft (234) passes through the bearing on the outer wall of the third connecting plate (2314) and is connected to the second bevel gear (2342); the third connecting plate (2314) is mounted on one side of the rear end surface of the upper surface of the partition (231); the front and rear ends of the upper surface of the partition (231) are both mounted with slide rails (2311); the slider (216) on the limit assembly (220) is arranged on the slide rail (2311) on the transmission assembly (230); and the slider (216) and the slide rail (2311) are slidably connected.

5. The rapid detection device for soil available potassium content according to claim 4 is characterized in that: The driving mechanism (500) is provided with a reduction motor (510), which is mounted on the upper surface of the support plate. The reduction motor (510) and the support plate are both located inside the protective cover body (110), and the protective cover body (110) and the support plate are both mounted above the outer wall of one side of the shell (100). The output shaft on the reduction motor (510) is connected to the third rotating shaft (520) through a coupling, and the other end of the third rotating shaft (520) passes through a bearing on the outer wall of one side of the shell (100) and extends into the second heating chamber (130) to be connected to a fourth bevel gear (521), and the fourth bevel gear (521) is meshedly connected with a sixth bevel gear (541), and the sixth bevel gear (541) is arranged on the outer wall of the fifth rotating shaft (540), and both ends of the fifth rotating shaft (540) pass through bearings on the surface of a fifth connecting plate (560), and the fifth connecting plate (560) is mounted on the inner wall of one side of the shell (100); A seventh bevel gear (542) is arranged below the outer wall of the fifth rotating shaft (540); a fourth rotating shaft (530) and a sixth rotating shaft (550) are arranged at the top and bottom ends of the fifth rotating shaft (540) respectively; the top end of the fourth rotating shaft (530) passes through the bearing on the surface of the partition (231) on the first oscillating mechanism (200) and extends to the first heating chamber (120) to be connected with the fifth bevel gear (531); the bottom end of the sixth rotating shaft (550) passes through the bearing on the surface of the partition (231) on the second oscillating mechanism (300) and is installed in the bearing on the surface of the partition (231) on the third oscillating mechanism (400); an eighth bevel gear (551) is installed on the outer wall of the sixth rotating shaft (550), and the eighth bevel gear (551) is located in the third heating chamber (140); The fifth bevel gear (531) is meshedly connected with the second bevel gear (2342) on the first oscillation mechanism (200), the seventh bevel gear (542) is meshedly connected with the second bevel gear (2342) on the second oscillation mechanism (300), and the eighth bevel gear (551) is meshedly connected with the second bevel gear (2342) on the third oscillation mechanism (400).

6. The rapid detection device for soil available potassium content according to claim 5 is characterized in that: A first mounting groove (532) is provided at the bottom end of the fourth rotating shaft (530), a first electromagnet (533) is installed at the top end of the first mounting groove (532), a first limiting groove (534) is provided on the groove wall of the first mounting groove (532), there are six first limiting grooves (534), and the six first limiting grooves (534) are distributed in a ring array, a second mounting groove (544) is provided at the top end of the fifth rotating shaft (540), a second electromagnet (545) is installed at the bottom end of the second mounting groove (544), a second limiting groove (543) is provided on the groove wall of the second mounting groove (544), there are six second limiting grooves (543), and the six second limiting grooves (543) are distributed in a ring array Distribution, a first slide column (546) is arranged inside the second mounting groove (544), and the outer wall of the first slide column (546) and the groove walls of the first mounting groove (532) and the second mounting groove (544) are clearance-fitted, the top and bottom ends of the first slide column (546) are respectively installed with a first iron block (5461) and a second iron block (5462), a first limit block (5463) is installed on the circumferential outer wall of the first slide column (546), there are six first limit blocks (5463), and the six first limit blocks (5463) are distributed in a ring array, and the outer wall of the first limit block (5463) and the groove walls of the first limit groove (534) and the second limit groove (543) are clearance-fitted.

7. The rapid detection device for soil available potassium content according to claim 5 is characterized in that: A third mounting groove (547) is provided at the bottom end of the fifth rotating shaft (540), a third electromagnet (548) is installed at the top end of the third mounting groove (547), a third limiting groove (549) is provided on the groove wall of the third mounting groove (547), there are six third limiting grooves (549), and the six third limiting grooves (549) are distributed in a ring array, a fourth mounting groove (553) is provided at the top end of the sixth rotating shaft (550), a fourth electromagnet (554) is installed at the bottom end of the fourth mounting groove (553), a fourth limiting groove (552) is provided on the groove wall of the fourth mounting groove (553), there are six fourth limiting grooves (552), and the six fourth limiting grooves (552) are distributed in a ring array The fourth mounting groove (553) is provided with a second slide column (555), and the outer wall of the second slide column (555) is clearance-fitted with the groove walls of the third mounting groove (547) and the fourth mounting groove (553). The top and bottom ends of the second slide column (555) are respectively installed with a third iron block (5551) and a fourth iron block (5552). The circumferential outer wall of the second slide column (555) is installed with a second limit block (5553). There are six second limit blocks (5553), and the six second limit blocks (5553) are distributed in a ring array. The outer wall of the second limit block (5553) is clearance-fitted with the groove walls of the third limit groove (549) and the fourth limit groove (552).

8. The rapid detection device for soil available potassium content according to claim 6 is characterized in that: The first heating chamber (120), the second heating chamber (130) and the third heating chamber (140) are all provided with an electric heating plate (160) and a temperature detection sensor (150), and the electric heating plate (160) and the temperature detection sensor (150) are respectively installed on the inner walls on both sides of the shell (100), and a control box (170) is installed above the outer wall on the other side of the shell (100); the first heating chamber (120) is arranged between the top of the shell (100) and the upper surface of the partition (231) on the first oscillating mechanism (200); the second heating chamber (130) is arranged between the lower surface of the upper partition (231) of the first oscillating mechanism (200) and the upper surface of the partition (231) on the second oscillating mechanism (300); and the third heating chamber (140) is arranged between the lower surface of the upper partition (231) of the second oscillating mechanism (300) and the upper surface of the partition (231) on the third oscillating mechanism (400).

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