Soil layer density measuring device for land surveying and mapping

Abstract

The invention discloses a soil layer density measuring device for land surveying and mapping, and relates to the technical field of land surveying and mapping devices.The soil layer density measuring device comprises a workbench, the workbench is in a C shape, the inner bottom of the workbench is fixedly connected with a plurality of bases, and the bases are distributed at intervals; the sampler comprises a barrel-shaped fixator with an opening in the bottom, a plurality of sampling barrels are placed in the barrel-shaped fixator, the bottom of the barrel-shaped fixator is in threaded connection with a hollow soil breaking barrel, the top of the soil breaking barrel is in extrusion contact with the plurality of sampling barrels, and a sampling cavity with an opening in the bottom is defined by the plurality of sampling barrels and the interior of the soil breaking barrel. According to the soil sampling device, the sampler is arranged and consists of the cylindrical fixer, the plurality of sampling barrels in the cylindrical fixer and the soil breaking barrel for breaking the soil, and after the sampler is inserted into the soil to complete sampling, the adjacent barrel bodies are conveniently cut subsequently, so that the sampling barrels filled with the soil with different depths are obtained; soil can be conveniently sampled and measured at different depths.

Description

Technical Field

[0001] The invention relates to the technical field of land surveying and mapping devices, and in particular to a soil layer density measuring device for land surveying and mapping. Background Art

[0002] Land surveying and mapping equipment mainly measures various data of land and its accessories, so as to facilitate the use of engineering or other work. In land surveying and mapping, it is necessary to measure the density of soil layers. First, the soil layers need to be sampled, and then the sampled soil layers are weighed and calculated, and then weighed and calculated after drying to obtain the wet density and dry density of the soil layers.

[0003] However, the existing soil density measuring device for land surveying cannot quickly sample and separate soil layers of different depths when sampling soil layers using a separate sampling tube. It is necessary to perform repeated sampling or gradually take out and separate the sample soil in the sampling tube. The repeated sampling method increases the workload of the staff. The gradual taking out and separation of the sample soil in the sampling tube can easily cause the sample soil to loosen and fall, affecting the measurement accuracy of the sample soil. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the existing soil layer density measuring device for land surveying and mapping that the soil layers at different depths cannot be quickly sampled and separated when sampling with a separate sampling tube, and to propose a soil layer density measuring device for land surveying and mapping.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a soil layer density measuring device for land surveying and mapping, comprising:

[0006] A workbench, wherein the workbench is C-shaped, and a plurality of bases are fixedly connected to the inner bottom, and the plurality of bases are distributed at intervals;

[0007] A sampler, the sampler comprising a bottom-opening cylindrical holder, a plurality of sampling cylinders being placed in the cylindrical holder, a hollow soil-breaking cylinder being threadedly connected to the bottom of the cylindrical holder, wherein the top of the soil-breaking cylinder is in compression contact with the plurality of sampling cylinders, wherein the plurality of sampling cylinders and the soil-breaking cylinders are enclosed inside a sampling cavity with a bottom opening, wherein the plurality of sampling cylinders and the soil-breaking cylinders are clearance-matched with the plurality of bases in a one-to-one correspondence;

[0008] The slitting mechanism includes a cooling component, a cutting component and a coating component. A plurality of the cooling components are connected to the top of a workbench. The top of the workbench is provided with knife grooves between adjacent cooling components. The cutting components are connected to the top of the workbench. The plurality of output ends of the cutting components correspond one-to-one with the plurality of knife groove gaps and face the gap between two adjacent cylinders in the plurality of sampling cylinders and soil-breaking cylinders. The coating component is connected to the workbench, wherein the coating component is used to attach a film to the surface of the output end of the cutting component.

[0009] Preferably, a thread groove is provided at the inner bottom of the cylinder-type fixer, and the outer side of the top of the earth-breaking cylinder is threadedly connected in the thread groove.

[0010] Preferably, a liquid storage tank is provided inside the cylindrical fixture, and the liquid storage tank contains cooling liquid.

[0011] Preferably, a groove is provided on the top of the base, wherein a plurality of grooves on the base are clearance-matched with the outer peripheral sides of the corresponding sampling tube and soil-breaking tube, and annular pads are fixedly connected in the plurality of grooves.

[0012] Preferably, an annular groove is coaxially opened in the top of the earth-breaking cylinder, the annular groove is snap-fitted with the bottom of the cylinder-shaped fixture, and the bottom end of the earth-breaking cylinder is conical.

[0013] Preferably, the cooling assembly comprises a liquid nitrogen tank, the liquid nitrogen tank is opened on the top of the workbench, an upper cover plate is installed on the top of the liquid nitrogen tank, and the knife groove is located between adjacent liquid nitrogen tanks.

[0014] Preferably, both sides of the knife groove are fixedly connected with a heat conduction plate, wherein the output end of the cutting assembly slides in contact with the heat conduction plate when passing through the knife groove.

[0015] Preferably, the cutting assembly includes a motor, which is installed at one end of the top of the workbench. The output end of the motor is coaxially fixedly connected with a connecting rod, and the connecting rod is rotatably connected in the workbench. A plurality of magnetic coupling transmission blocks are connected to the connecting rod. A rotating cavity for rotating the plurality of magnetic coupling transmission blocks is provided in the workbench. Blades are fixedly connected to the plurality of magnetic coupling transmission blocks. The plurality of blades correspond one-to-one with the gaps of the plurality of knife grooves and are in sliding contact with the heat conduction plate.

[0016] Preferably, the coating assembly includes an electrostatic generator, which is installed on a workbench, wherein the negative terminal of the electrostatic generator is electrically connected to the blade, and the positive terminal is electrically connected to a PVA film, wherein the PVA film is tightly attached to both sides of the blade surface through electrostatic action.

[0017] Preferably, the motor and the magnetic coupling transmission block are electrically connected to a data control box, and the data control box is arranged on one side of the workbench, wherein the multiple magnetic coupling transmission blocks have magnetic coupling components with different magnetic pole pairs and distribution states, and the data control box is used to control the working state of the motor and the multiple magnetic coupling transmission blocks.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1. The present invention provides a sampler, which consists of a cylinder-shaped fixture, a plurality of sampling cylinders therein, and a soil-breaking cylinder for breaking the soil. After the sampler is inserted into the soil to complete sampling, it is convenient to subsequently cut adjacent cylinders to obtain sampling cylinders filled with soil of different depths, thereby facilitating the sampling and measurement of soil at different depths, thereby reducing the workload of the staff.

[0020] 2. The present invention provides a liquid storage tank and a cooling component. The coolant in the liquid storage tank pre-cools the sampling process. The cooling component cools the blade used for cutting through a heat conduction plate, thereby reducing the temperature of the soil, enhancing the structural stability of the soil, and at the same time enlarging the gap between the soil, making it easier to cut and making the cut surface smoother, thereby minimizing the falling of soil.

[0021] 3. The present invention sets a cutting assembly and a coating assembly, and uses the coating assembly to attach a thin film to both sides of the blade in the cutting assembly through electrostatic action. When the blade cuts into the gap between adjacent cylinders, the pre-operation is carried out to make the temperature of the soil higher than the temperature of the blade, so that the film on the blade can cover the port of the cylinder and the cross-section of the soil, effectively preventing the cut soil from falling and improving the use effect of the soil.

[0022] 4. The present invention sets a cutting assembly and transmits the driving force of the motor to the blade through the magnetic coupling transmission block, thereby controlling the working state of the magnetic coupling transmission block. The corresponding magnetic coupling transmission block can be controlled to be "decoupled", that is, not to transmit torque, while other magnetic coupling transmission blocks work normally to transmit the driving force of the motor to the corresponding blade. Under the rotation and cutting of the corresponding blade, soil samples of corresponding lengths can be easily obtained to meet different measurement requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a soil layer density measuring device for land surveying and mapping proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the base and sampling tube of a soil density measuring device for land surveying and mapping proposed by the present invention cooperating with each other;

[0025] Figure 3A schematic diagram of the structure of the sampling tube and the tube-shaped fixture cooperating with each other in a soil layer density measuring device for land surveying and mapping proposed by the present invention;

[0026] Figure 4 The present invention provides a soil layer density measuring device for land surveying and mapping Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 5 A schematic diagram of the structure of the working table and the upper cover plate of a soil density measuring device for land surveying and mapping proposed by the present invention cooperating with each other;

[0028] Figure 6 The present invention provides a soil layer density measuring device for land surveying and mapping Figure 5 A schematic diagram of the enlarged structure at B in the middle;

[0029] Figure 7 A schematic diagram of the structure of the connection rod and the magnetic coupling transmission block of a soil density measuring device for land surveying and mapping proposed by the present invention cooperating with each other;

[0030] Figure 8 This is a schematic diagram of the structure of the working table and liquid nitrogen tank cooperating with each other in a soil layer density measuring device for land surveying and mapping proposed by the present invention.

[0031] In the figure: 1. workbench; 2. electrostatic generator; 3. upper cover; 4. base; 5. annular pad; 6. thermal conductive plate; 7. cylinder type holder; 8. threaded groove; 9. liquid storage tank; 10. earth-breaking cylinder; 11. sampling cylinder; 12. data control box; 13. motor; 14. connecting rod; 15. magnetic coupling transmission block; 16. blade; 17. liquid nitrogen tank. DETAILED DESCRIPTION

[0032] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0033] Reference Figure 1-Figure 5 A soil density measuring device for land surveying and mapping comprises: a workbench 1, the workbench 1 is C-shaped, and a plurality of bases 4 are fixedly connected to the inner bottom, and the plurality of bases 4 are distributed at intervals.

[0034] The sampler includes a cylindrical fixture 7 with an opening at the bottom, a plurality of sampling tubes 11 are placed in the cylindrical fixture 7, a hollow soil-breaking tube 10 is threadedly connected to the bottom of the cylindrical fixture 7, wherein the top of the soil-breaking tube 10 is in compression contact with the plurality of sampling tubes 11, wherein the plurality of sampling tubes 11 and the soil-breaking tube 10 form a sampling cavity with an opening at the bottom, wherein the plurality of sampling tubes 11 and the soil-breaking tube 10 are in one-to-one correspondence with the plurality of bases 4 in clearance fit.

[0035] A thread groove 8 is provided at the bottom of the cylinder-shaped fixing device 7 , and the outer side of the top of the earth-breaking cylinder 10 is threadedly connected in the thread groove 8 .

[0036] A liquid reservoir 9 is provided inside the cylindrical holder 7, and the liquid reservoir 9 contains cooling liquid. The liquid reservoir 9 is connected to a feeding component for feeding low-temperature cooling liquid into the liquid reservoir 9, and the liquid reservoir 9 is sealed after the feeding is completed.

[0037] Reference Figure 6 A groove is provided on the top of the base 4, wherein a plurality of grooves on the base 4 are matched with the clearances on the outer circumferences of the corresponding sampling tubes 11 and the earth-breaking tubes 10, and annular pads 5 are fixedly connected in the plurality of grooves.

[0038] An annular groove is coaxially provided in the top of the earth-breaking cylinder 10, and the annular groove is engaged with the bottom of the cylinder-shaped fixture 7, and the bottom end of the earth-breaking cylinder 10 is conical.

[0039] The slitting mechanism includes a cooling component, a cutting component and a coating component. A plurality of cooling components are connected to the top of the workbench 1. The top of the workbench 1 is provided with knife grooves between adjacent cooling components. The cutting components are connected to the top of the workbench 1. A plurality of output ends of the cutting components correspond one to one with the gaps of the plurality of knife grooves and face the gaps between two adjacent cylinders in the plurality of sampling cylinders 11 and the earth-breaking cylinders 10. The coating component is connected to the workbench 1, wherein the coating component is used to attach a film to the surface of the output end of the cutting component.

[0040] Reference Figure 8 The cooling assembly includes a liquid nitrogen tank 17 , which is opened on the top of the workbench 1 , and an upper cover plate 3 is installed on the top of the liquid nitrogen tank 17 , and the knife groove is located between adjacent liquid nitrogen tanks 17 .

[0041] Both sides of the knife groove are fixedly connected with a heat conduction plate 6, wherein the output end of the cutting component slides in contact with the heat conduction plate 6 when passing through the knife groove.

[0042] Reference Figure 7 The cutting assembly includes a motor 13, which is installed at one end of the top of the workbench 1. The output end of the motor 13 is coaxially fixedly connected with a connecting rod 14, which is rotatably connected in the workbench 1. A plurality of magnetic coupling transmission blocks 15 are connected to the connecting rod 14. A rotating cavity for rotating the plurality of magnetic coupling transmission blocks 15 is provided in the workbench 1. Blades 16 are fixedly connected to the plurality of magnetic coupling transmission blocks 15. The plurality of blades 16 correspond one by one to the gaps of the plurality of knife grooves and are in sliding contact with the heat conducting plate 6.

[0043] The coating assembly includes an electrostatic generator 2, which adopts existing technology and is installed on a workbench 1. The negative end of the electrostatic generator 2 is electrically connected to the blade 16, and the positive end is electrically connected to a PVA film, i.e., a polyvinyl alcohol film, wherein the PVA film is tightly attached to both sides of the surface of the blade 16 through electrostatic action.

[0044] The motor 13 and the magnetic coupling transmission block 15 are electrically connected to a data control box 12, which is arranged on one side of the workbench 1, wherein the multiple magnetic coupling transmission blocks 15 have magnetic coupling components with different magnetic pole pairs and distribution states, and the data control box 12 is used to control the working state of the motor 13 and the multiple magnetic coupling transmission blocks 15.

[0045] The data control box 12 controls the magnetic coupling transmission block 15. Since the magnetic coupling transmission block 15 has magnetic coupling components with different pole pairs and distribution states, when the motor 13 rotates, due to the difference in the interaction of the magnetic field, the torque and rotation speed received by each blade 16 will be different. If a blade 16 is not needed to rotate, the corresponding magnetic coupling transmission block 15 is controlled to be "decoupled", that is, the torque is not transmitted. Therefore, when the motor 13 rotates, the blade 16 will not rotate accordingly, while the blade 16 connected to other magnetic coupling components that can be effectively coupled will rotate normally, making it convenient to obtain soil samples of corresponding lengths.

[0046] In the present invention, when soil sampling is performed, the four sampling tubes 11 are first weighed, and the total mass of the four sampling tubes 11 is recorded. Then, the four sampling tubes 11 are sequentially placed in the cylindrical holder 7, and then the soil-breaking tube 10 is threadedly connected to the inner side of the cylindrical holder 7 through the threaded groove 8 to fix it. At this time, when the soil-breaking tube 10 is fixed, the upper side surface of the soil-breaking tube 10 will abut against the four groups of sampling tubes 11 at the upper end, thereby completing the composition of the sampler, and the four sampling tubes 11 and the interior of the soil-breaking tube 10 form a sampling cavity with an opening at the bottom;

[0047] When sampling is required, the surface of the land is simply cleaned, and then the sampler is inserted into the soil from top to bottom, and the cylindrical holder 7 is pressed down by external force, so that the soil breaking cylinder 10 drives the cylindrical holder 7 to be inserted into the soil. When the sampler is completely inserted into the soil layer, the sampler is pulled out or dug out from the soil layer to complete the sampling operation;

[0048] A liquid reservoir 9 is provided inside the cylinder-shaped fixture 7. A coolant is stored inside the liquid reservoir 9 to reduce the temperature of the soil in the sampling cylinder 11 to about 5 to 10 degrees. This will prevent the internal water vapor of the soil from crystallizing, and will not damage the internal soil structure of the soil layer. The overall quality will not change, and the stability of the entire soil will be increased, so that it can be cut better.

[0049] After sampling is completed, the sampler is stably placed on the five bases 4 in the workbench 1, and then the outer side of the cylinder-shaped fixture 7 is closely attached to the annular pad 5 on the base 4. Since the outer surface diameter of the earth-breaking cylinder 10 is relatively large, the inner diameter of the grooves on the five bases 4 is correspondingly larger than that on the first four bases 4, forming an adaptive fit;

[0050] The staff holds the earth-breaking cylinder 10, and then rotates the cylinder-type holder 7 in the reverse direction to separate it from the earth-breaking cylinder 10. An opening is provided at the top of the cylinder-type holder 7. In the initial state, it is threadedly connected in the opening through a threaded head. The threaded head can abut against the sampling cylinder 11 to improve the stability of the sampler. When removing the cylinder-type holder 7, the threaded head is rotated in the reverse direction to be removed, and a tool with a diameter smaller than the opening is used to abut against the sampling cylinder 11 through the opening to pull out the cylinder-type holder 7. At this time, the annular pads 5 on the five bases 4 support the sampling cylinder 11 to prevent the soil inside the sampling cylinder 11 from being greatly deformed.

[0051] At this time, the upper cover plate 3 is opened, and the low-temperature liquid nitrogen is poured into the liquid nitrogen tank 17 on the workbench 1, and then the upper cover plate 3 is closed to prevent excessive volatilization of the low-temperature liquid nitrogen;

[0052] The motor 13 is controlled by the data control box 12, and the output end of the motor 13 drives the connecting rod 14 to rotate, and the connecting rod 14 drives the blade 16 to rotate through the magnetic coupling transmission block 15;

[0053] Before the motor 13 works, the surface of the blade 16 to be cut is cleaned and wiped, and then the electrostatic generator 2 is used to ensure that it can provide sufficient voltage and current to generate the required electrostatic field, and then the negative electrode is connected, and then the PVA film is connected to the positive electrode, so that an electrostatic attraction is generated between the blade 16 and the PVA film. Under the action of electrostatics, the PVA film is brought close to the blade 16, so that it is tightly attached to both sides of the surface of the blade 16 under the action of electrostatics;

[0054] At this time, the motor 13 works, and finally drives the blade 16 to rotate slowly. The blade 16 drives the PVA film to rotate synchronously. The blade 16 slowly passes through the knife groove and contacts the heat transfer plate 6 in the knife groove. The temperature of the liquid nitrogen in the cooling component is usually around -196°C, so the blade 16 is quickly cooled by the heat transfer plate 6. The temperature of the blade 16 is controlled to a certain extent by the rotation speed, so that the blade 16 is cooled to less than five degrees but not lower than zero degrees.

[0055] When the cooled blade 16 rotates and cuts into the gap between adjacent cylinders, the sampled soil is cut. When the low-temperature blade 16 contacts the soil, the soil has been pre-treated before, so that the temperature of the soil is between five and ten degrees, which is greater than the temperature of the blade 16. As the blade 16 cuts into the gap between adjacent cylinders and under the influence of temperature, the PVA film on the blade 16 adheres to the cylinder ports on both sides and the cut soil surface, effectively preventing the soil from falling, obtaining the cut and coated sampling cylinder 11 and the sample soil in the sampling cylinder 11, and facilitating the use effect of the sample;

[0056] The cooled blade 16 and the coolant in the liquid storage tank 9 pre-treat the soil, so that the soil temperature is reduced, the structure is more stable, the gap is enlarged, the cutting is better, and the cut surface is smoother, which can minimize the falling of soil;

[0057] Finally, the sampling tube 11 required for measurement is taken out to measure the total mass, and then the mass of the sampling tube 11 is subtracted from the total mass to obtain the mass of the sample soil, and then the volume of the sampling tube 11 is divided by the mass of the sample soil to obtain the wet density of the sample soil; the soil is then dried, and the corresponding weight and calculation are performed to obtain the dry density of the soil layer;

[0058] The density of soil layers at different depths can be detected by setting different sampling tubes 11, while ensuring accuracy to the greatest extent.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A soil density measuring device for land surveying and mapping, characterized in that: include: A workbench (1), the workbench (1) is C-shaped, and a plurality of bases (4) are fixedly connected to the inner bottom, and the plurality of bases (4) are distributed at intervals; A sampler, the sampler comprising a bottom-opening cylindrical holder (7), a plurality of sampling cylinders (11) being placed in the cylindrical holder (7), a hollow soil-breaking cylinder (10) being threadedly connected to the bottom of the cylindrical holder (7), wherein the top of the soil-breaking cylinder (10) is in compression contact with the plurality of sampling cylinders (11), wherein the plurality of sampling cylinders (11) and the soil-breaking cylinder (10) are internally surrounded by a sampling cavity with a bottom opening, wherein the plurality of sampling cylinders (11) and the soil-breaking cylinder (10) are in one-to-one correspondence with the plurality of bases (4) in clearance fit; The slitting mechanism comprises a cooling component, a cutting component and a coating component. A plurality of the cooling components are connected to the top of a workbench (1). The top of the workbench (1) is provided with knife grooves between adjacent cooling components. The cutting components are connected to the top of the workbench (1). The plurality of output ends of the cutting components are matched with the plurality of knife groove gaps in a one-to-one correspondence and face the gaps between two adjacent cylinders in the plurality of sampling cylinders (11) and the soil breaking cylinders (10). The coating component is connected to the workbench (1), wherein the coating component is used to attach a film to the surface of the output end of the cutting component.

2. The soil density measuring device for land surveying and mapping according to claim 1, characterized in that: The inner bottom of the cylindrical fixing device (7) is provided with a thread groove (8), and the outer side of the top of the earth-breaking cylinder (10) is threadedly connected in the thread groove (8).

3. The soil density measuring device for land surveying and mapping according to claim 1, characterized in that: A liquid storage tank (9) is provided inside the cylindrical fixture (7), and the liquid storage tank (9) contains cooling liquid.

4. The soil density measuring device for land surveying and mapping according to claim 1, characterized in that: The top of the base (4) is provided with a groove, wherein a plurality of grooves on the base (4) are clearance-matched with the outer circumference of the corresponding sampling tube (11) and the soil-breaking tube (10), and an annular pad (5) is fixedly connected in each of the plurality of grooves.

5. The soil density measuring device for land surveying and mapping according to claim 1, characterized in that: An annular groove is coaxially formed in the top of the earth-breaking cylinder (10), and the annular groove is snap-fitted with the bottom of the cylinder-shaped fixture (7). The bottom end of the earth-breaking cylinder (10) is conical.

6. The soil density measuring device for land surveying and mapping according to claim 1, characterized in that: The cooling component comprises a liquid nitrogen tank (17), the liquid nitrogen tank (17) is opened on the top of the workbench (1), an upper cover plate (3) is installed on the top of the liquid nitrogen tank (17), and the knife groove is located between adjacent liquid nitrogen tanks (17).

7. The soil density measuring device for land surveying and mapping according to claim 6, characterized in that: Both sides of the knife groove are fixedly connected with a heat conduction plate (6), wherein the output end of the cutting component slides in contact with the heat conduction plate (6) when passing through the knife groove.

8. The soil density measuring device for land surveying and mapping according to claim 7, characterized in that: The cutting assembly comprises a motor (13), the motor (13) being mounted at one end of the top of the workbench (1), the output end of the motor (13) being coaxially fixedly connected to a connecting rod (14), the connecting rod (14) being rotatably connected in the workbench (1), a plurality of magnetic coupling transmission blocks (15) being connected to the connecting rod (14), a rotating cavity for the plurality of magnetic coupling transmission blocks (15) to rotate being provided in the workbench (1), a plurality of blades (16) being fixedly connected to the plurality of magnetic coupling transmission blocks (15), the plurality of blades (16) being correspondingly matched with the plurality of knife groove gaps one by one, and being in sliding contact with the heat conducting plate (6).

9. The soil density measuring device for land surveying and mapping according to claim 8, characterized in that: The coating assembly comprises an electrostatic generator (2), wherein the electrostatic generator (2) is mounted on a workbench (1), wherein a negative terminal of the electrostatic generator (2) is electrically connected to a blade (16), and a positive terminal of the electrostatic generator (2) is electrically connected to a PVA film, wherein the PVA film is tightly attached to both sides of the surface of the blade (16) by electrostatic action.

10. The soil density measuring device for land surveying and mapping according to claim 1, characterized in that: The motor (13) and the magnetic coupling transmission block (15) are both electrically connected to a data control box (12), and the data control box (12) is arranged on one side of the workbench (1), wherein the plurality of magnetic coupling transmission blocks (15) have magnetic coupling components with different numbers of magnetic pole pairs and distribution states, and the data control box (12) is used to control the working states of the motor (13) and the plurality of magnetic coupling transmission blocks (15).

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