An online measuring device for moisture regain of seed cotton

Abstract

The invention discloses an online determination device for moisture regain of seed cotton, which belongs to the field of determination devices, and comprises a determination instrument body, a display screen is fixedly connected to one side of the determination instrument body, a handle is fixedly connected to the upper surface of the determination instrument body, and a second through groove is provided in the bottom of the handle. It is faster to realize the movement of the elliptical telescopic rod from the inside of the elliptical storage sleeve, because the diameter of the first driving gear is smaller than the first driven gear, so that the first driving gear is more labor-saving when rotating, which not only effectively reduces the resistance caused by the friction between the elliptical telescopic rod and the seed cotton, and then the movement of the detection head inside the seed cotton is more labor-saving, but also can measure the moisture regain of seed cotton of different depths, and at the same time, the elliptical telescopic rod stably moves and extends inside the elliptical storage sleeve, preventing the elliptical storage sleeve from deformation, improving the service life, and bringing great convenience to the determination of moisture regain of seed cotton.

Description

Technical Field

[0001] The invention relates to the field of measuring devices, and more specifically to an online measuring device for moisture regain of seed cotton. Background Art

[0002] Cotton is hygroscopic, and its moisture regain is an important factor affecting the quality of cotton processing. After the seed cotton is picked, it is usually transported to the cotton ginning factory by truck. The inspectors first test the moisture regain of the seed cotton to determine whether to purchase it, and then adjust the cotton ginning process and arrange processing according to the test results. At present, the moisture regain of seed cotton is generally measured manually using a handheld moisture regain meter.

[0003] However, in actual use, when manually holding the moisture regain measuring instrument for detection, the instrument detection end needs to be inserted into the cotton pile. During this process, the friction and resistance when inserting deep into the cotton pile are large, resulting in high labor intensity. In view of this problem, the prior art has also proposed some solutions. For example, the Chinese invention patent application with application publication number CN109444386A discloses an online measurement device for the moisture regain of seed cotton. The moisture regain measurement device for seed cotton first inserts the sleeve and the insertion rod into the cotton pile together, then separates the insertion rod from the sleeve, and continues to press the insertion rod to insert the insertion rod deeper into the cotton pile. The friction between the insertion rod and the smooth plane of the inner surface of the sleeve replaces the friction between the insertion rod and the cotton pile, thereby greatly reducing the friction and resistance when the insertion rod is inserted deep into the cotton pile.

[0004] However, as the length of the rod extending out of the sleeve increases, the contact between the rod surface and the cotton will become greater, and the friction will also increase accordingly. When the direction of the force used to push the rod deviates from the direction in which the rod is extended, part of the force will be applied to the sleeve through the rod, causing the friction between the rod and the sleeve to increase, and the front end of the sleeve will easily deform, affecting subsequent use. Summary of the invention

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide an online determination device for moisture regain of seed cotton.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] An online measuring device for moisture regain of seed cotton comprises a measuring instrument body, a display screen is fixedly connected to one side of the measuring instrument body, a handle is fixedly connected to the upper surface of the measuring instrument body, a second through groove is provided in the inner bottom of the handle, and an adjustment component for adjusting the seed cotton detection depth is provided on the upper surface of the measuring instrument body.

[0008] The adjustment assembly includes a threaded rod and a transmission gear rotatably connected to the upper surface of the measuring instrument body, a rotating shaft rotatably arranged inside the handle, and an elliptical storage sleeve fixed to the lower surface of the measuring instrument body, the top and bottom of the rotating shaft are respectively fixedly connected to a turntable and a first driving gear, the top of the threaded rod is fixedly connected to the first driven gear, the outer surface of the threaded rod is threadedly connected to an elliptical telescopic rod, and the bottom of the elliptical telescopic rod is fixedly connected to a detection head.

[0009] Furthermore, the bottom of the rotating shaft extends to the interior of the second through groove, the transmission gear is meshed with the first driven gear and the first driving gear for transmission, the diameter of the first driving gear is smaller than the first driven gear and the transmission gear, the bottom of the threaded rod passes through the measuring instrument body and extends to the interior of the elliptical storage sleeve, the elliptical telescopic rod is located inside the elliptical storage sleeve, the elliptical telescopic rod and the elliptical storage sleeve are slidably fitted with each other, the interior of the turntable is connected to a fixing component for fixing the limiting rotating shaft, and the outer surface of the elliptical storage sleeve is slidably connected to an auxiliary pulling-out component.

[0010] Furthermore, the fixing assembly includes a pull rod slidably connected to the inside of the turntable and a second annular rack fixed to the outer surface of the handle, the outer surface of the pull rod is sleeved with a first spring, the bottoms of the two pull rods are fixedly connected to the first annular rack, and the tops of the two pull rods are fixedly connected to a connecting plate.

[0011] Furthermore, the teeth of the first annular rack and the second annular rack are meshed with each other, the first annular rack is simultaneously sleeved on the outer surface of the handle, and the first spring is located between the turntable and the first annular rack.

[0012] Furthermore, the auxiliary pulling-out component includes a mounting plate sliding on the outer surface of the elliptical storage sleeve and a transmission component connected to the side of the measuring instrument body away from the display screen, contact plates are symmetrically fixedly connected on both sides of the mounting plate, a third sliding groove is symmetrically opened on one side of the upper surface of the contact plate, a spur rack is slidably connected inside the third sliding groove, a release component for limiting and fixing the spur rack is symmetrically connected at the edge of the upper surface of the contact plate, and an anti-slip component is connected inside the contact plate.

[0013] Furthermore, the transmission component includes a servo motor fixed on one side of the measuring instrument body and a second driven gear symmetrically connected to the side of the measuring instrument body, the output end of the servo motor is fixedly connected to a second driving gear, the second driving gear is located between the two second driven gears, the second driving gear is meshed with the second driven gear, and the second driven gear is meshed with the spur rack.

[0014] Furthermore, the release assembly includes a support frame fixed on the measuring instrument body, a first slide groove opened on the spur rack, a first through groove opened on the inner bottom of the spur rack, and a support column fixed at the edge of the upper surface of the measuring instrument body, the outer surface of the support column is slidably connected with a baffle, and the outer surface of the support column is sleeved with a second spring.

[0015] Furthermore, the top of the support column is fixedly connected to a limiting block, the second spring is located between the contact plate and the baffle plate, the baffle plate and the first through groove are adapted to each other, and the support frame is located inside the first sliding groove and slides with each other.

[0016] Furthermore, the anti-slip component includes a storage groove opened inside the contact plate and a cylinder fixed on the upper surface of the contact plate, the inner surface of the storage groove is symmetrically provided with a second sliding groove, the interior of the second sliding groove is slidably connected to the anti-slip plate, the bottom of the anti-slip plate is evenly distributed with rubber protrusions, and the outer surface of the cylinder is rotatably connected to a clamping plate.

[0017] Furthermore, a rubber ring is sleeved on the outer surface of the cylinder, and the abutting plate is sleeved on the rubber ring.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This scheme realizes that the elliptical telescopic rod moves out of the inside of the elliptical storage sleeve more quickly by setting an adjustment component. Because the diameter of the first driving gear is smaller than the first driven gear, the first driving gear is more labor-saving when rotating. It not only effectively reduces the resistance caused by the friction between the elliptical telescopic rod and the seed cotton, but also makes the movement of the detection head inside the seed cotton more labor-saving. It can also measure the moisture regain of seed cotton at different depths. At the same time, the elliptical telescopic rod moves stably and extends out from the inside of the elliptical storage sleeve to prevent the elliptical storage sleeve from deformation, thereby increasing the service life and bringing great convenience to the determination of the moisture regain of the seed cotton.

[0020] 2. In this scheme, the second annular rack can limit the first annular rack through the fixing component to prevent it from rotating, and finally make the rotating shaft unable to be rotated, so that the detection head cannot be pushed, so that it can stably contact with the seed cotton for measurement, which can effectively improve the accuracy of the detection head during detection, release the meshing state of the first annular rack and the second annular rack, and then the turntable can be rotated again, and the detection head can be driven to move through the transmission, thereby improving the flexibility of the device.

[0021] 3. This solution provides an auxiliary pull-out component, which is supported on the surface of the snakeskin bag by a mounting plate and a contact plate. This can effectively prevent the elliptical storage sleeve from shifting during the removal process, avoid expanding the hole into which the snakeskin bag is inserted, ensure the integrity of the snakeskin bag, and avoid bending of the elliptical storage sleeve, thereby effectively increasing the service life of the elliptical storage sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0023] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0024] Figure 3 The structure of the regulating component of the present invention is schematically shown in FIG. Figure 1 ;

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the elliptical storage sleeve of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the fixing assembly of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the auxiliary pull-out assembly of the present invention;

[0028] Figure 7 For the present invention Figure 6 A magnified image of point A;

[0029] Figure 8 The anti-skid assembly structure of the present invention is shown in FIG. Figure 1 ;

[0030] Fig. 9 The anti-skid assembly structure of the present invention is shown in FIG. Figure 2 .

[0031] Description of the numbers in the figure:

[0032] 1. Measuring instrument body; 2. Display screen; 3. Handle;

[0033] 4. Adjustment assembly; 41. Rotating shaft; 42. First driving gear; 43. Transmission gear; 44. First driven gear; 45. Threaded rod; 46. Rotating disk;

[0034] 47, fixing assembly; 471, pull rod; 472, first spring; 473, first annular rack; 474, second annular rack; 475, connecting plate;

[0035] 48. Oval storage sleeve; 49. Detection head; 410. Oval telescopic rod;

[0036] 5. Auxiliary pull-out assembly; 51. Mounting plate; 52. Contact plate; 53. Second driving gear; 54. Servo motor; 55. Second driven gear; 56. Spur rack;

[0037] 57, release assembly; 571, support frame; 572, first slide slot; 573, support column; 574, second spring; 575, baffle; 576, first through slot;

[0038] 58, anti-skid assembly; 581, storage slot; 582, abutment plate; 583, cylinder; 584, anti-skid plate; 585, rubber protrusion; 586, second slide slot;

[0039] 59. Third chute;

[0040] 6. Second through groove. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0042] See also Figures 1 to 9 An online measuring device for moisture regain of seed cotton comprises a measuring instrument body 1, a display screen 2 is fixedly connected to one side of the measuring instrument body 1, a handle 3 is fixedly connected to the upper surface of the measuring instrument body 1, a second through groove 6 is provided at the bottom of the handle 3, and an adjusting component 4 for adjusting the seed cotton detection depth is provided on the upper surface of the measuring instrument body 1.

[0043] like Figure 3 and Figure 4 As shown, the adjustment component 4 includes a threaded rod 45 and a transmission gear 43 rotatably connected to the upper surface of the measuring instrument body 1, a rotating shaft 41 rotatably arranged inside the handle 3, and an elliptical storage sleeve 48 fixed to the lower surface of the measuring instrument body 1, the top and bottom of the rotating shaft 41 are respectively fixedly connected to a turntable 46 and a first driving gear 42, the top of the threaded rod 45 is fixedly connected to the first driven gear 44, the outer surface of the threaded rod 45 is threadedly connected to an elliptical telescopic rod 410, and the bottom of the elliptical telescopic rod 410 is fixedly connected to a detection head 49.

[0044] The bottom of the rotating shaft 41 extends to the inside of the second through groove 6, the transmission gear 43 is meshed with the first driven gear 44 and the first driving gear 42 for transmission, the diameter of the first driving gear 42 is smaller than the first driven gear 44 and the transmission gear 43, the bottom of the threaded rod 45 passes through the measuring instrument body 1 and extends to the inside of the elliptical storage sleeve 48, the elliptical telescopic rod 410 is located inside the elliptical storage sleeve 48, the elliptical telescopic rod 410 and the elliptical storage sleeve 48 are slidably fitted with each other, the inside of the turntable 46 is connected to a fixing component 47 for fixing the limiting rotating shaft 41, and the outer surface of the elliptical storage sleeve 48 is slidably connected to an auxiliary pull-out component 5.

[0045] When it is necessary to detect the moisture regain of the seed cotton, the handle 3 is held to insert the elliptical storage sleeve 48 in connection with the elliptical telescopic rod 410 into the seed cotton as a whole, and the seed cotton of different depths is detected by the insertion depth of the detection head 49. When it is necessary to detect the seed cotton at a deep level, in order to reduce the resistance caused by the friction between the seed cotton and the elliptical storage sleeve 48, the rotating disk 46 is driven to rotate the first driving gear 42 through the rotating shaft 41, and the first driving gear 42 is meshed with the transmission gear 43 to drive the first driven gear 44 to rotate, and the first driven gear 44 synchronously drives the threaded rod 45 to rotate, and the threaded rod 45 is rotated in the threaded The elliptical telescopic rod 410 is driven to move out of the elliptical receiving sleeve 48 under the action of , because the diameter of the first driving gear 42 is smaller than the first driven gear 44, the first driving gear 42 is more labor-saving when rotating, which not only effectively reduces the resistance caused by the friction between the elliptical telescopic rod 410 and the seed cotton, but also saves more effort when the detection head 49 moves inside the seed cotton, and can also measure the moisture regain of seed cotton at different depths. The elliptical telescopic rod 410 moves stably and extends out from the inside of the elliptical receiving sleeve 48, which reduces the deformation of the elliptical receiving sleeve 48, improves the service life, and brings great convenience to the determination of the moisture regain of the seed cotton.

[0046] like Figure 5 As shown, the fixing assembly 47 includes a pull rod 471 slidably connected to the inside of the turntable 46 and a second annular rack 474 fixed to the outer surface of the handle 3, the outer surface of the pull rod 471 is sleeved with a first spring 472, the bottoms of the two pull rods 471 are fixedly connected to the first annular rack 473, and the tops of the two pull rods 471 are fixedly connected to the connecting plate 475.

[0047] The teeth of the first annular rack 473 and the second annular rack 474 are meshed with each other. The first annular rack 473 is also sleeved on the outer surface of the handle 3 . The first spring 472 is located between the rotating disk 46 and the first annular rack 473 .

[0048] However, during measurement, it is necessary to ensure that the detection head 49 is in stable contact with the seed cotton for a certain period of time. When the detection head 49 reaches the specified depth, the first annular rack 473 and the second annular rack 474 can be brought into contact and mesh with each other, and the second annular rack 474 can limit the first annular rack 473 to prevent it from rotating, thereby limiting the turntable 46 through the two pull rods 471, so that the rotating shaft 41 cannot be rotated, and the detection head 49 cannot be pushed, so that it can stably contact with the seed cotton for measurement, which can effectively improve the accuracy of the detection head 49 during detection. When the detection head 49 needs to be moved, the connecting plate 475 is pulled to drive the two pull rods 471 to move inside the turntable 46, driving the first annular rack 473 and the second annular rack 474 away from each other to release the meshing state. At this time, the turntable 46 can be rotated again, and the detection head 49 can be driven to move through the transmission, thereby improving the flexibility of the device.

[0049] like Figure 6 As shown, the auxiliary pull-out component 5 includes a mounting plate 51 sliding on the outer surface of the elliptical storage sleeve 48 and a transmission component connected to the side of the measuring instrument body 1 away from the display screen 2, and contact plates 52 are symmetrically fixedly connected on both sides of the mounting plate 51, a third sliding groove 59 is symmetrically opened on one side of the upper surface of a contact plate 52, and a straight rack 56 is slidably connected inside the third sliding groove 59, a release component 57 for limiting and fixing the straight rack 56 is symmetrically connected at the edge of the upper surface of a contact plate 52, and an anti-slip component 58 is connected inside the contact plate 52.

[0050] The transmission component includes a servo motor 54 fixed to one side of the measuring instrument body 1 and a second driven gear 55 symmetrically connected to one side of the measuring instrument body 1. The output end of the servo motor 54 is fixedly connected to the second driving gear 53, and the second driving gear 53 is located between the two second driven gears 55. The second driving gear 53 and the second driven gear 55 are meshed with each other, and the second driven gear 55 and the spur rack 56 are meshed with each other.

[0051] The seed cotton is mainly stored in a snakeskin bag. When the measuring instrument is pulled out of the seed cotton, if the force direction is not parallel to the direction of the elliptical storage sleeve 48, the moving elliptical storage sleeve 48 will be offset, which will not only easily cause the elliptical storage sleeve 48 to bend, but also expand the hole where the snakeskin bag is inserted, which will easily damage the snakeskin bag and cause the seed cotton to fall during subsequent transportation.

[0052] When the elliptical storage sleeve 48 is inserted into the interior of the seed cotton, the mounting plate 51 moves to the top and contacts with the measuring instrument body 1, and is supported by the surface of the seed cotton snakeskin bag. When the measuring device needs to be pulled out from the interior of the seed cotton, the servo motor 54 is turned on to drive the second driving gear 53 to rotate, and the second driving gear 53 simultaneously drives the two second driven gears 55 to rotate, and the second driven gear 55 drives the spur rack 56 meshing with it to move, and the spur rack 56 drives the contact plate 52 and the mounting plate 51 to contact with each other on the surface of the elliptical storage sleeve 48. As for movement, since the mounting plate 51 and the contact plate 52 are supported on the surface of the snakeskin bag, the elliptical storage sleeve 48 is gradually pushed out, and the elliptical storage sleeve 48 can be easily pulled out from the inside of the seed cotton by manually pulling. By supporting the mounting plate 51 and the contact plate 52 on the surface of the snakeskin bag, the elliptical storage sleeve 48 can be effectively prevented from being offset during the removal process, and the hole for inserting the snakeskin bag can be prevented from expanding, thereby ensuring the integrity of the snakeskin bag and preventing the elliptical storage sleeve 48 from bending, thereby effectively improving the service life of the elliptical storage sleeve 48.

[0053] like Figure 7 As shown, the release assembly 57 includes a support frame 571 fixed on the measuring instrument body 1, a first slide groove 572 opened on the spur rack 56, a first through groove 576 opened on the inner bottom of the spur rack 56, and a support column 573 fixed at the edge of the upper surface of the measuring instrument body 1, the outer surface of the support column 573 is slidably connected with a baffle 575, and the outer surface of the support column 573 is sleeved with a second spring 574.

[0054] The top of the support column 573 is fixedly connected to the limit block, the second spring 574 is located between the contact plate 52 and the baffle 575, the baffle 575 and the first through groove 576 are adapted to each other, and the support frame 571 is located inside the first sliding groove 572 and slides with each other.

[0055] When the next measurement is to be carried out, the mounting plate 51 is moved to the end of the elliptical telescopic rod 410. At this time, it is necessary to reset to the bottom of the measuring instrument body 1. If the servo motor 54 is used for driving and transmission, it will not only take a long time, but also accelerate the loss of battery power of the measuring instrument body 1, and it is necessary to charge it frequently. At this time, the baffle 575 is pressed downward, and when the baffle 575 is moved to the same level as the first through slot 576, the two spur racks 56 are pushed to slide inside the third slide slot 59 and separate from the second driven gear 55, and the baffle 575 is inserted into the first through slot 576. At this time, quickly pull the two spur racks 56 to drive the contact plate 52 and the mounting plate 51 to move along the outer surface of the elliptical storage sleeve 48 to the bottom of the measuring instrument body 1. Finally, just push the two spur racks 56 together to engage with the second driven gear 55, so that the baffle 575 moves out from the inside of the first through groove 576. The second spring 574 pushes the baffle 575 upward and slides on the surface of the spur rack 56, so that the baffle 575 resists the spur rack 56 to prevent the spur rack 56 from moving, thereby effectively resetting the mounting plate 51 and improving the service life of the battery inside the measuring instrument body 1.

[0056] like Figure 8 and Fig. 9 As shown, the anti-slip component 58 includes a receiving groove 581 opened inside the contact plate 52 and a cylinder 583 fixed on the upper surface of the contact plate 52, the inner surface of the receiving groove 581 is symmetrically provided with a second sliding groove 586, the interior of the second sliding groove 586 is slidably connected with an anti-slip plate 584, the bottom of the anti-slip plate 584 is evenly distributed with rubber protrusions 585, and the outer surface of the cylinder 583 is rotatably connected with a clamping plate 582.

[0057] A rubber ring is sleeved on the outer surface of the cylinder 583, and the pressing plate 582 is sleeved on the rubber ring.

[0058] Since the surface of the snakeskin bag is relatively smooth, the mounting plate 51 and the contact plate 52 slip against the surface of the snakeskin bag and will still slide under the action of external force. Therefore, before measuring, the anti-slip plate 584 is pressed downward, and the anti-slip plate 584 drives the rubber protrusion 585 to move out of the interior of the storage groove 581, so that the rubber protrusion 585 contacts the surface of the snakeskin bag, and the anti-slip plate 584 continues to be moved so that the rubber protrusion 585 is tightly squeezed against the snakeskin bag. At this time, the tightening plate 582 is rotated again, and one end of the tightening plate 582 is moved to the top of the anti-slip plate 584, and the anti-slip plate 584 is pressed and fixed to ensure that the rubber protrusion 585 is always in squeeze contact with the snakeskin bag, thereby increasing the friction between the rubber protrusion 585 and the snakeskin bag. Therefore, when the elliptical storage sleeve 48 is pulled out, the contact plate 52 is stably supported on the snakeskin bag without deviation.

[0059] Usage method: First, insert the elliptical storage sleeve 48 and the elliptical telescopic rod 410 into the seed cotton. The depth of the detection head 49 inserted into the seed cotton can be more labor-saving by adjusting the component 4, which reduces the inconvenience of measurement caused by excessive insertion resistance during measurement. At the same time, the turntable 46 can be fixed by the fixing component 47, thereby preventing the rotating shaft 41 from rotating, effectively improving the stability of the detection head 49 inside the seed cotton, and improving the accuracy of the detection result of the detection head 49 on the seed cotton;

[0060] Then, when the elliptical storage sleeve 48 is pulled out of the seed cotton, the auxiliary pulling-out component 5 can drive the mounting plate 51 and the contact plate 52 to slide relative to each other on the surface of the elliptical storage sleeve 48. Since the mounting plate 51 and the contact plate 52 are supported on the snakeskin bag and cannot move, the elliptical storage sleeve 48 is pushed outward, which can save a lot of effort and ensure the stability of the elliptical storage sleeve 48 when it is removed, avoiding the expansion of the hole for inserting the snakeskin bag. With the cooperation of the various parts of the release component 57, the mounting plate 51 and the contact plate 52 can be quickly reset, saving time and the battery power of the measuring instrument main body 1. Through the action of the anti-slip component 58, the friction between the contact plate 52 and the snakeskin bag is greatly improved, avoiding the sliding deviation of the contact plate 52 when supported, and further improving the stability of the contact plate 52 and the surface of the snakeskin bag.

[0061] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An online measuring device for moisture regain of seed cotton, comprising a measuring instrument body (1), a display screen (2) being fixedly connected to one side of the measuring instrument body (1), a handle (3) being fixedly connected to the upper surface of the measuring instrument body (1), and a second through groove (6) being provided at the inner bottom of the handle (3); Features: An upper surface of the measuring instrument body (1) is provided with an adjustment component (4) for adjusting the seed cotton detection depth; The adjustment assembly (4) comprises a threaded rod (45) and a transmission gear (43) rotatably connected to the upper surface of the measuring instrument body (1), a rotating shaft (41) rotatably arranged inside the handle (3), and an elliptical storage sleeve (48) fixed to the lower surface of the measuring instrument body (1), the top and bottom of the rotating shaft (41) are respectively fixedly connected to a turntable (46) and a first driving gear (42), the top of the threaded rod (45) is fixedly connected to a first driven gear (44), the outer surface of the threaded rod (45) is threadedly connected to an elliptical telescopic rod (410), and the bottom of the elliptical telescopic rod (410) is fixedly connected to a detection head (49); The bottom of the rotating shaft (41) extends to the inside of the second through groove (6); the transmission gear (43) meshes with the first driven gear (44) and the first driving gear (42) for transmission; the diameter of the first driving gear (42) is smaller than that of the first driven gear (44) and the transmission gear (43); the bottom of the threaded rod (45) passes through the measuring instrument body (1) and extends to the inside of the elliptical storage sleeve (48); the elliptical telescopic rod (410) is located inside the elliptical storage sleeve (48); the elliptical telescopic rod (410) and the elliptical storage sleeve (48) are slidably fitted with each other.

2. The on-line measuring device for moisture regain of seed cotton according to claim 1, characterized in that: The interior of the rotating disk (46) is connected to a fixing assembly (47) for fixing the limiting rotating shaft (41), and the outer surface of the elliptical storage sleeve (48) is slidably connected to an auxiliary pulling assembly (5); The fixing assembly (47) comprises a pull rod (471) slidably connected to the inside of the rotating disk (46) and a second annular rack (474) fixed to the outer surface of the handle (3); the outer surface of the pull rod (471) is sleeved with a first spring (472); the bottoms of the two pull rods (471) are fixedly connected to the first annular rack (473); and the tops of the two pull rods (471) are fixedly connected to a connecting plate (475); The teeth of the first annular rack (473) and the second annular rack (474) are meshed with each other, the first annular rack (473) is simultaneously sleeved on the outer surface of the handle (3), and the first spring (472) is located between the rotating disk (46) and the first annular rack (473); When the detection head (49) reaches the specified depth, the first annular rack (473) and the second annular rack (474) are brought into contact and meshed with each other, and the second annular rack (474) limits the first annular rack (473) to prevent it from rotating, thereby limiting the turntable (46) through the two pull rods (471), so that the rotating shaft (41) cannot be rotated, and the detection head (49) cannot be pushed, so that it can stably contact with the seed cotton for measurement, effectively improving the accuracy of the detection head (49) during detection. When it is necessary to move the detection head (49), the connecting plate (475) is pulled to drive the two pull rods (471) to move inside the turntable (46), driving the first annular rack (473) and the second annular rack (474) to move away from each other and release the meshing state. At this time, the turntable (46) is rotated again to drive the detection head (49) to move through the transmission.

3. The on-line measuring device for moisture regain of seed cotton according to claim 2, characterized in that: The auxiliary pull-out component (5) comprises a mounting plate (51) sliding on the outer surface of the elliptical storage sleeve (48) and a transmission component connected to the side of the measuring instrument body (1) away from the display screen (2), the mounting plate (51) is symmetrically fixedly connected to the two sides with contact plates (52), one side of the upper surface of the contact plate (52) is symmetrically provided with a third slide groove (59), the interior of the third slide groove (59) is slidably connected to a spur rack (56), a release component (57) for limiting and fixing the spur rack (56) is symmetrically connected at the edge of the upper surface of the contact plate (52), and the interior of the contact plate (52) is connected to an anti-slip component (58); The transmission component comprises a servo motor (54) fixed to one side of the measuring instrument body (1) and a second driven gear (55) symmetrically connected to the one side of the measuring instrument body (1), the output end of the servo motor (54) is fixedly connected to a second driving gear (53), the second driving gear (53) is located between the two second driven gears (55), the second driving gear (53) and the second driven gear (55) are meshed with each other, and the second driven gear (55) and the spur rack (56) are meshed with each other; When the elliptical storage sleeve (48) is inserted into the interior of the seed cotton, the mounting plate (51) moves to the top to contact the measuring instrument body (1) and is supported by the surface of the seed cotton snakeskin bag. When the measuring device needs to be pulled out from the interior of the seed cotton, the servo motor (54) is turned on to drive the second driving gear (53) to rotate. The second driving gear (53) simultaneously drives the two second driven gears (55) to rotate. The second driven gears (55) drive the spur rack (56) meshing with it to move. The release assembly (57) comprises a support frame (571) fixed on the measuring instrument body (1), a first slide groove (572) provided on the spur rack (56), a first through groove (576) provided on the inner bottom of the spur rack (56), and a support column (573) fixed at the edge of the upper surface of the measuring instrument body (1), the outer surface of the support column (573) being slidably connected with a baffle (575), and the outer surface of the support column (573) being sleeved with a second spring (574); The top of the support column (573) is fixedly connected to a limit block, the second spring (574) is located between the contact plate (52) and the baffle plate (575), the baffle plate (575) and the first through groove (576) are adapted to each other, and the support frame (571) is located inside the first sliding groove (572) and slides with each other; The baffle plate (575) is pressed downward, and when the baffle plate (575) is moved to the same level as the first through slot (576), the two spur racks (56) are pushed to slide inside the third slide slot (59) and separate from the second driven gear (55), and the baffle plate (575) is inserted into the first through slot (576). At this time, the two spur racks (56) are quickly pulled to move the contact plate (52) and the mounting (51) on the outer surface of the elliptical storage sleeve (48) to The bottom of the measuring instrument body (1) is finally moved by pushing the two spur racks (56) closer to each other and meshing with the second driven gear (55), so that the baffle (575) moves out from the inside of the first through groove (576), and the second spring (574) pushes the baffle (575) upward and slides on the surface of the spur rack (56), so that the baffle (575) resists the spur rack (56) to prevent the spur rack (56) from moving, thereby effectively resetting the mounting plate (51); The anti-skid assembly (58) comprises a receiving groove (581) provided inside the contact plate (52) and a cylinder (583) fixed on the upper surface of the contact plate (52); a second slide groove (586) is symmetrically provided on the inner surface of the receiving groove (581); an anti-skid plate (584) is slidably connected inside the second slide groove (586); rubber protrusions (585) are evenly distributed on the bottom of the anti-skid plate (584); and a clamping plate (582) is rotatably connected to the outer surface of the cylinder (583); Before measuring, the anti-slip plate (584) is pressed downward, and the anti-slip plate (584) drives the rubber protrusion (585) to move out of the interior of the storage groove (581), so that the rubber protrusion (585) contacts the surface of the snakeskin bag, and the anti-slip plate (584) is continued to be moved so that the rubber protrusion (585) and the snakeskin bag are tightly squeezed. At this time, the tightening plate (582) is rotated again, and one end of the tightening plate (582) is moved to the top of the anti-slip plate (584), and the anti-slip plate (584) is tightened and fixed to ensure that the rubber protrusion (585) is always in squeeze contact with the snakeskin bag, thereby increasing the friction between the rubber protrusion (585) and the snakeskin bag.

4. The on-line measuring device for moisture regain of seed cotton according to claim 3, characterized in that: The outer surface of the cylinder (583) is sleeved with a rubber ring, and the abutting plate (582) is sleeved on the rubber ring.

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