A retractable grain moisture content measuring instrument

Abstract

The present application relates to the technical field of measuring equipment, and specifically discloses a retractable grain moisture content measuring instrument, comprising: at least one rod, the piercing part is fixedly arranged at the head of the topmost rod; a plurality of flip rods are rotatably arranged in the inner cavity of the rod, the flip rods can penetrate and extend to the outside of the rod, and the projection positions of the plurality of flip rods in the direction of the piercing part do not overlap; at least one center rod, each center rod is located in the inner cavity of the rod; an operating part is arranged at one end of the equipment away from the piercing part, and the operating part is connected to all the center rods in a transmission manner; wherein a grain discharge mechanism and a temperature and humidity detection mechanism are also arranged in the flip rod, the grain discharge mechanism includes two inclined grain discharge belts, and the temperature and humidity detection mechanism includes a temperature and humidity detection probe. The present invention can realize comprehensive, accurate and efficient multi-point monitoring under the premise of reducing damage to grain.

Description

Technical Field

[0001] The invention relates to the technical field of measuring equipment, in particular to a telescopic grain moisture content measuring instrument. Background Art

[0002] At present, in the field of grain moisture content detection, when existing equipment is inserted into a grain pile, the temperature of the equipment itself will cause a certain amount of heat conduction impact on the grain, resulting in deviations in the detection results. This is especially true for multi-point monitoring equipment, where the monitoring components are directly located on the equipment body and are greatly affected by the equipment temperature, further exacerbating the problem of measurement errors.

[0003] However, the existing equipment's monitoring points are not distributed comprehensively, especially the lack of a three-dimensional monitoring structure in three-dimensional space, which cannot fully cover different areas and depths of the grain pile, resulting in incomplete monitoring data and insufficient accuracy. In addition, in actual operation, the existing multi-point monitoring equipment needs to overcome greater resistance when inserted into the grain pile. When the equipment is running, the friction between the probe and the grain is large, which can easily cause damage to the temperature and humidity sensor probe, reducing its service life and measurement accuracy.

[0004] Therefore, how to design a scalable grain moisture content measuring instrument that can achieve comprehensive, accurate and efficient multi-point monitoring while reducing damage to grain is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The embodiment of the present application provides a retractable grain moisture content measuring instrument, the main purpose of which is to achieve comprehensive, accurate and efficient multi-point monitoring while reducing damage to grain.

[0006] To achieve the above-mentioned purpose, the embodiment of the present application provides a retractable grain moisture content measuring instrument, comprising at least one rod, and further comprising:

[0007] A piercing portion, fixedly disposed on the head of the rod portion at the top;

[0008] A plurality of flip rods are rotatably arranged in the inner cavity of the rod portion, the flip rods can penetrate and extend to the outside of the rod portion, and the projection positions of the plurality of flip rods in the direction of the insertion portion do not overlap;

[0009] at least one central rod, each of the central rods being located in the inner cavity of the rod portion;

[0010] An operating part is arranged at one end of the device away from the piercing part, and the operating part is transmission-connected with all the central rods;

[0011] Among them, the flip rod is also provided with a grain discharge mechanism and a temperature and humidity detection mechanism. The grain discharge mechanism includes two inclined grain discharge belts, which are in contact with the grain and can be rotatably arranged. The temperature and humidity detection mechanism includes a temperature and humidity detection probe, which can be retracted.

[0012] In a feasible embodiment, an indicating portion is also provided at the outer end of the rod portion away from one end of the piercing portion, and the indicating portion includes an outer shell and also includes: a threaded sleeve, the threaded sleeve is threadedly connected to the outer wall of the center rod, and an indicating arrow is provided on the outer end surface of the threaded sleeve; an indicating groove is opened through the shell and corresponds to the position of the indicating arrow, and the indicating arrow will move along the indicating groove and point to the scale line at the corresponding position.

[0013] In a feasible embodiment, a handle and a stopper are further provided at the outer end of the rod away from one end of the piercing portion, wherein the handle comprises a polygonal outer wall, the handle is sleeved on the outside of the outer wall of the rod, and the stopper is attached to the surface of the grain or grain container.

[0014] In a feasible embodiment, the rod portion is provided with: a plurality of strip holes penetrating through the outer wall of the rod portion, and the length of each of the strip holes is not less than twice the length of the flip rod; a bonding plate is arranged on the inner side of the strip holes, and the end face of the bonding plate is parallel to the flipping path of the flip rod; a plurality of guide friction strips are equidistantly arranged on the bonding plate, and each of the guide friction strips points to the rotation point of the flip rod.

[0015] In a feasible embodiment, each of the center rods is connected to the flip rods via a transmission part, and the transmission part includes: multiple worms are coaxially arranged with the center rod, and the multiple worms are distributed at intervals; multiple fixing seats are fixedly arranged on the inner wall of the rod and connected to the rotating end of the flip rod; a worm wheel is fixedly arranged on the rotating end of each flip rod and meshingly connected to the worm; a central fixed column is arranged in the fixed seat and fixedly passes through the flip rod.

[0016] In a feasible embodiment, the grain discharge mechanism includes: a fixed gear fixedly sleeved on the outer wall of the central fixed column and located in the inner cavity of the flip rod; a moving gear rotatably arranged in the inner cavity of the flip rod through a gear shaft and meshing with the fixed gear, and the diameter of the moving gear is smaller than the diameter of the fixed gear; a gear transmission box is fixedly arranged in the inner cavity of the flip rod, and the gear transmission box includes a power input end and two power output shafts, the power input end and the shaft body where the moving gear is located are connected by a bevel gear transmission, and the two grain discharge belts are respectively connected to the two power output shafts.

[0017] In a feasible embodiment, the temperature and humidity detection mechanism includes: a fixed plate arranged in the inner cavity of the flip rod along the rotation direction of the flip rod; a driving groove is opened through the fixed plate, the driving groove is in an inclined state, and the two ends of the driving groove are at different distances from the rotation point of the flip rod; the middle part of the telescopic part can be slidably clamped on the inner side of the driving groove, and the end face of the telescopic part abuts against the guide friction strip; the temperature and humidity detection probe is fixedly connected to the telescopic part, and the temperature and humidity detection probe can be extended to the outside of the end of the flip rod to be exposed.

[0018] In a feasible embodiment, the two ends of the rod portion are also provided with a first connecting end and a second connecting end, and the first connecting end and the second connecting end can be fixedly combined by a snap-on that moves linearly; the two ends of the center rod are also provided with a first clamping end and a second clamping end, and the first clamping end can be clamped with the second clamping end by linear movement, and the cross-section of the first clamping end is a polygon.

[0019] In a feasible implementation, the temperature and humidity detection probe uses a fiber Bragg grating sensor to achieve distributed measurement of humidity and temperature by monitoring changes in the refractive index of the optical fiber.

[0020] The present application provides a retractable grain moisture content measuring instrument. The device forms a comprehensive and three-dimensional monitoring point network through the independent projection position distribution of multiple flip rods in three-dimensional space, which can cover different areas and depths of the grain pile, and significantly improve the comprehensiveness and accuracy of the measurement data; in addition, the grain discharge mechanism integrated inside the flip rod adopts two inclined grain discharge belts, which are close to the grain surface during rotation, effectively reducing the insertion resistance, and protecting the grain from excessive squeezing or damage; more importantly, the temperature and humidity detection probe in the device is designed as a retractable structure, and the measurement position and depth can be flexibly adjusted according to actual needs, further improving the measurement accuracy; the device adopts a modular design, and the center rod can extend the rod length by snapping or other means to adapt to different measurement depth requirements, increasing the applicability and operational flexibility of the equipment; it is suitable for various complex grain storage environments and measurement needs, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a retractable grain moisture content measuring instrument provided in an embodiment of the present application is shown;

[0022] Figure 2 A schematic diagram showing the structure of a retractable grain moisture content measuring instrument in a detection state provided in an embodiment of the present application is shown;

[0023] Figure 3 A schematic diagram of the structure of the center rod provided in an embodiment of the present application is shown;

[0024] Figure 4 A schematic structural diagram of a first card connection end and a second card connection end provided in an embodiment of the present application is shown;

[0025] Figure 5 A schematic diagram of the structure of a flip rod provided in an embodiment of the present application is shown;

[0026] Figure 6 A schematic diagram of the structure of a fixing base and a central fixing column provided in an embodiment of the present application is shown;

[0027] Figure 7 A schematic diagram showing the structure of the turning rod provided in the embodiment of the present application in a state of turning out of grain;

[0028] Figure 8 A schematic diagram of the structure of the flip rod provided in the embodiment of the present application reversely driving the temperature and humidity detection probe to extend;

[0029] Fig. 9 A schematic diagram of the structure of two grain discharge belts provided in an embodiment of the present application is shown;

[0030] Fig.10 A schematic diagram of the structure of the telescopic member provided in an embodiment of the present application is shown;

[0031] Fig.11 A schematic structural diagram of a threaded sleeve provided in an embodiment of the present application is shown.

[0032] In the figure: 10, piercing part, 20, rod part, 30, flip rod, 40, indicating part, 50, operating part, 60, hand-held part, 70, stop part, 80, center rod, 90, transmission part, 21, strip hole, 22, first connecting end, 23, second connecting end, 24, bonding plate, 25, guide friction strip, 31, grain discharge mechanism, 32, temperature and humidity detection mechanism, 41, threaded sleeve, 42, indicating groove, 81, first clamping end, 82, second clamping end, 91, worm, 92, worm wheel, 93, fixing seat, 94, center fixing column, 311, fixed gear, 312, moving gear, 313, gear transmission box, 314, output shaft, 315, grain discharge belt, 321, fixing plate, 322, driving groove, 323, telescopic member, 324, temperature and humidity detection probe. DETAILED DESCRIPTION

[0033] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0034] In this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.

[0035] See also Figures 1 to 11 As shown, the embodiment of the present application provides a retractable grain moisture content measuring instrument, comprising a piercing portion 10, at least one rod portion 20, a plurality of flip rods 30 and an operating portion 50;

[0036] Specifically, the insertion portion 10 is fixedly arranged at the head of the topmost rod portion 20; a plurality of flip rods 30 are rotatably arranged in the inner cavity of the rod portion 20, the flip rods 30 can penetrate and extend to the outside of the rod portion 20, and the projection positions of the flip rods 30 on each rod portion 20 in the direction of the insertion portion 10 do not overlap; at least one center rod 80, each center rod 80 is located in the inner cavity of the rod portion 20; the operating portion 50 is arranged at one end of the device away from the insertion portion 10, and the operating portion 50 is transmission-connected with all the center rods 80;

[0037] Among them, a grain discharge mechanism 31 and a temperature and humidity detection mechanism 32 are also provided in the flip rod 30. The grain discharge mechanism 31 includes two inclined grain discharge belts 315, which are in contact with the grain and can be rotatably arranged. The temperature and humidity detection mechanism 32 includes a temperature and humidity detection probe 324, which can be retracted.

[0038] The present application provides a retractable grain moisture content measuring instrument, including, one end of the device is equipped with a piercing portion 10, which is designed as a conical structure, so that it can be easily inserted into a grain pile without causing damage to it; on the other side of the piercing portion 10, one or more rod portions 20 are provided, each of which contains an inner cavity for accommodating a central rod 80 and a flip rod 30; the flip rod 30 located in each rod portion 20 is a measuring component of the device; the flip rod 30 can rotate around the central axis and extend to the outside of the rod portion 20 through the strip hole 21; by ensuring that the projection position of each flip rod 30 does not overlap, a plurality of independent monitoring points are formed in three-dimensional space, thereby improving the comprehensiveness and accuracy of data collection.

[0039] The central rod 80 is located in the inner cavity of the rod portion 20 and is connected to the operating portion 50; the operator can control the movement of the central rod 80 by rotating or adjusting the operating portion 50, thereby driving the flip rod 30 to rotate, so as to achieve the measurement requirements of different angles and depths; inside each flip rod 30, a grain discharge mechanism 31 and a temperature and humidity detection mechanism 32 are integrated; the grain discharge mechanism 31 is composed of two inclined grain discharge belts 315, which are tightly attached to the grain surface during the rotation of the flip rod 30 and can be rotated to any position to provide a flexible measurement process, while reducing the insertion resistance and protecting the grain to be measured from excessive squeezing or damage; each Each flip rod 30 is equipped with a retractable temperature and humidity detection probe 324, which can be extended to an appropriate length at different depths and angles to contact different areas of the grain pile, thereby ensuring the accuracy and comprehensiveness of the measurement results; the equipment adopts a modular design concept, and the two ends of the center rod 80 can extend the length of the rod 20 by snap-on or other means to adapt to different measurement depth requirements; this equipment not only increases the applicability of the equipment, but also facilitates the operator to adjust the structure according to the actual environment and improve work efficiency; the retractable grain moisture content measuring instrument realizes flexible, comprehensive and efficient measurement capabilities, and is suitable for a variety of different grain storage environments and measurement needs.

[0040] In some examples, further, an indicating portion 40 is provided at the outer end of the rod portion 20 away from one end of the insertion portion 10, and the indicating portion 40 includes an outer shell, and also includes: a threaded sleeve 41 and an indicating groove 42, the threaded sleeve 41 is screwed on the outer wall of the center rod 80, and an indicating arrow is provided on the outer end surface of the threaded sleeve 41; the indicating groove 42 is opened through the shell and corresponds to the position of the indicating arrow.

[0041] In this example, an indicator portion 40 is provided at the outer end of the rod portion 20 away from one end of the insertion portion 10, and the indicator portion 40 is used to provide operational feedback to help the operator understand the status and adjustment of the device; specifically, the indicator portion 40 includes a shell, a threaded sleeve 41 and an indicator groove 42; the shell is a structure fixed to the outer end of the rod portion 20, which provides support and protection for the entire indicator portion 40 and is made of durable and lightweight materials; the threaded sleeve 41 is fixed to the outer wall of the center rod 80 by a threaded connection; when the operator rotates the center rod 80, the threaded sleeve 41 will rotate accordingly, thereby driving the position of the indicator arrow to change; the indicator groove 42 is opened through the shell and corresponds to the position of the indicator arrow; a sliding track is provided for the indicator arrow; an indicator arrow is provided on the outer end face of the threaded sleeve 41, and when the center rod 80 rotates or moves, the indicator arrow will move along the indicator groove 42 and point to the scale line at the corresponding position; the scale line is usually used to display a specific angle range, telescopic length or other operating parameters to help the operator accurately judge the current status of the device.

[0042] For example, during the measurement process, if the operator needs to adjust the rotation angle of the flip rod 30, it can be achieved by rotating the center rod 80; as the center rod 80 rotates, the threaded sleeve 41 and the indicator arrow will move along the indicator groove 42 and point to the corresponding scale line, thereby clearly displaying the current position of the flip rod 30 and the temperature and humidity detection probe 324 inside the flip rod 30; the operation convenience of the equipment is improved, and the operator can intuitively see the current adjustment status to avoid measurement errors or equipment damage due to misoperation.

[0043] In some examples, further, a handle portion 60 and a stop portion 70 are provided at the outer end of the rod portion 20 away from one end of the piercing portion 10, wherein the handle portion 60 includes a polygonal outer wall, the handle portion 60 is sleeved on the outer side of the outer wall of the rod portion 20, and the stop portion 70 is attached to the surface of the grain or the grain container.

[0044] In this example, a hand-held portion 60 and a stopper 70 are further provided at the outer end of the rod portion 20 away from one end of the piercing portion 10, wherein the hand-held portion 60 includes an outer wall of a regular hexagon, which is designed to be suitable for hand holding to increase comfort and stability during operation; the hand-held portion 60 is sleeved on the outer side of the rod portion 20, which is convenient for the operator to rotate or move during use, and ensures that the flip rod 30 in the device can be easily adjusted to the desired position; in addition, the stopper 70 is attached to the surface of the grain or grain container, and plays the role of fixing the measuring instrument to prevent it from sliding during the detection process, thereby ensuring the accuracy and reliability of the measurement results; therefore, the hand-held portion 60 and the stopper 70 together provide the operator with a convenient operating experience, while also improving the overall performance and use efficiency of the equipment.

[0045] In some examples, further, the rod portion 20 is provided with: a plurality of strip holes 21, a bonding plate 24 and a plurality of guide friction strips 25, the plurality of strip holes 21 are opened through the outer wall of the rod portion 20, and the length of each strip hole 21 is not less than twice the length of the flip rod 30; the bonding plate 24 is arranged on the inner side of the strip hole 21, and the end face of the bonding plate 24 is parallel to the flipping path of the flip rod 30; the plurality of guide friction strips 25 are equidistantly arranged on the bonding plate 24, and each guide friction strip 25 points to the rotation point of the flip rod 30.

[0046] In the measuring instrument provided in this example, in order to improve its operating performance and stability, a plurality of strip holes 21 are provided on the rod 20, and the length of each strip hole 21 is designed to be not less than twice the length of the flip rod 30, so that the device can provide a complete flip rod 30 to flip out from the rod 20, and then after continuing to rotate, it can be flipped back into the rod 20 again. Therefore, a strip hole 21 at least longer than twice the length of the flip rod 30 is required to ensure that the flip rod 30, which can only discharge grain in one direction, can be re-accommodated into the inner cavity of the rod 20 with less movement resistance; a fitting plate 24 is provided on the inner side of the strip hole 21, and its end face is kept parallel to the flipping path of the flip rod 30, so as to effectively guide the movement of the flip rod 30;

[0047] In addition, in order to further realize the extension and retraction of the temperature and humidity detection probe 324 at any angle, the present device does not need to set up a complex telescopic driving structure, while also having the lightweight and portable effect of the device. In this example, a plurality of guide friction strips 25 are equidistantly arranged on the bonding plate 24, and each guide friction strip 25 points to the rotation point of the flip rod 30, thereby being able to assist in the extension and retraction of the temperature and humidity detection mechanism 32. The setting of the guide friction strip 25 can provide a guiding force for the temperature and humidity detection mechanism 32 to extend or retract in the inner cavity of the flip rod 30, so that the temperature and humidity detection mechanism 32 only relies on the friction resistance setting in a specific direction to achieve the extension and retraction effect, making the overall structure more compact and efficient, and having a low manufacturing cost.

[0048] In some examples, further, each center rod 80 is connected to the flip rod 30 through a transmission part 90, and the transmission part 90 includes: multiple worm gears 91, worm wheels 92, multiple fixed seats 93 and a central fixed column 94, the multiple worm gears 91 are coaxially arranged with the center rod 80, and the multiple worm gears 91 are distributed at intervals; the multiple fixed seats 93 are fixedly arranged on the inner wall of the rod part 20 and are connected to the rotating end of the flip rod 30; the worm wheel 92 is fixedly arranged on the rotating end of each flip rod 30 and meshingly connected to the worm gear 91; the central fixed column 94 is arranged in the fixed seat 93 and fixedly passes through the flip rod 30.

[0049] In this example, the transmission between the center rod 80 and the flip rod 30 is achieved through a transmission mechanism. Specifically, multiple worm gears 91 are coaxially arranged with the center rod 80 and are distributed at intervals in the entire rod portion 20 to ensure that power can be evenly transmitted to all flip rods 30 in the rod portion 20; the fixed seat 93 is firmly mounted on the inner wall of the rod portion 20 and connected to the rotating end of the flip rod 30 to provide stable support for the rotation of the flip rod 30; each rotating end of the flip rod 30 is provided with a worm gear 92, and forms a meshing relationship with the corresponding worm gear 91, thereby realizing a power transmission structure that can drive all multi-directional flipping only through a single center rod 80; a central fixed column 94 is also provided inside the fixed seat 93, which runs through the entire flip rod 30. On the one hand, it can provide an enhanced effect on the rotation stability of the flip rod 30, and on the other hand, the purpose of setting the central fixed column 94 is to form a relative movement between the flip rod 30 and the central fixed column 94 to provide power for the grain discharge mechanism 31.

[0050] In some examples, further, the grain discharge mechanism 31 includes: a fixed gear 311, a moving gear 312 and a gear transmission box 313, the fixed gear 311 is fixedly mounted on the outer wall of the central fixed column 94, and is located in the inner cavity of the flip rod 30; the moving gear 312 is rotatably set in the inner cavity of the flip rod 30 through a gear shaft, and meshes with the fixed gear 311, and the diameter of the moving gear 312 is smaller than the diameter of the fixed gear 311; the gear transmission box 313 is fixedly set in the inner cavity of the flip rod 30, and the gear transmission box 313 includes a power input end and two power output shafts 314, the power input end and the shaft body where the moving gear 312 is located are connected by a bevel gear transmission, and the two grain discharge belts 315 are respectively connected to the two power output shafts 314.

[0051] In this example, each center rod 80 is connected to the flip rod 30 through a transmission part 90, and the worm 91 is responsible for transmitting the rotational motion of the center rod 80 to the flip rod 30 to rotate it. To generate rotational power, the fixed gear 311 is fixedly sleeved on the outer wall of the center fixed column 94 and is located in the inner cavity of the flip rod 30. When the center rod 80 rotates, the fixed gear 311 and the flip rod 30 generate relative rotation. The moving gear 312 is rotatably arranged in the inner cavity of the flip rod 30 through the gear shaft and meshes with the fixed gear 311. Therefore, in this process, the moving gear 312 will rotate, and the diameter of the moving gear 312 is smaller than that of the fixed gear 311, thereby optimizing the speed and torque.

[0052] The gear transmission box 313 is fixedly arranged in the inner cavity of the flip rod 30, and the power input end is connected to the shaft body where the moving gear 312 is located through a bevel gear, so that the power can be effectively transmitted and adapted to different transmission angles. The two grain discharge belts 315 are respectively connected to the two power output shafts 314. When the power output shaft 314 of the gear transmission box 313 rotates, the grain discharge belts 315 are driven to operate, so that the grain on the front side of the flip rod 30 is transported to the peripheral side, thereby achieving the effect of reducing resistance.

[0053] In some examples, further, the temperature and humidity detection mechanism 32 includes: a fixed plate 321, a driving groove 322, a telescopic member 323 and a temperature and humidity detection probe 324, the fixed plate 321 is arranged in the inner cavity of the flip rod 30 along the rotation direction of the flip rod 30; the driving groove 322 is opened through the fixed plate 321, the driving groove 322 is in an inclined state, and the two ends of the driving groove 322 are at different distances from the rotation point of the flip rod 30; the middle part of the telescopic member 323 can be slidably connected to the inner side of the driving groove 322, and the end face of the telescopic member 323 abuts against the guide friction strip 25; the temperature and humidity detection probe 324 is fixedly connected to the telescopic member 323, and the temperature and humidity detection probe 324 can be extended to the outside of the end of the flip rod 30 to be exposed.

[0054] In this example, the temperature and humidity detection mechanism 32 includes a fixed plate 321, a driving groove 322, a telescopic member 323 and a temperature and humidity detection probe 324, and its specific working principle is as follows: the fixed plate 321 is installed in the inner cavity of the flip rod 30, and the driving groove 322 is an inclined channel that runs through the fixed plate 321, and the two ends are at different distances from the rotation point of the flip rod 30; so that when the flip rod 30 rotates, the telescopic member 323 can slide and telescope in the driving groove 322; the middle part of the telescopic member 323 can be slidably engaged in the driving groove 322, and its end face abuts against the guide friction strip 25; ensure that the telescopic member 323 slides in the direction of the guide friction strip 25 during the sliding process; the temperature and humidity detection probe 324 is fixedly connected to one end of the telescopic member 323, and can move with the telescopic member 323 to telescope inside and outside the end of the flip rod 30; when the flip rod 30 rotates in the opposite direction, the telescopic member 323 slides under the corresponding action, driving the temperature and humidity detection probe 324 to extend out of the flip rod 30 The outer side of the end portion continues to maintain a contracted state during forward rotation, thereby realizing the collection of temperature and humidity data in different areas; by combining the fixed plate 321, the driving slot 322 and the telescopic member 323, the rotation of the flip rod 30 is used to drive the movement of the probe, thereby ensuring that the temperature and humidity parameters can be accurately measured at different angles; at the same time, the guide friction strip 25 provides the necessary telescopic guiding function with a simple structure to ensure the reliability of the entire mechanism.

[0055] In some examples, further, the two ends of the rod portion 20 are also provided with a first connecting end 22 and a second connecting end 23, and the first connecting end 22 and the second connecting end 23 can be fixedly combined by a linearly moving snap-on combination; the two ends of the center rod 80 are also provided with a first clamping end 81 and a second clamping end 82, and the first clamping end 81 can be clamped with the second clamping end 82 by linear movement, and the cross-section of the first clamping end 81 is a polygon.

[0056] A first connecting end 22 and a second connecting end 23 are respectively provided at both ends of the rod portion 20, and the two can be fixed together by a linearly movable buckle, so that the rod portion 20 can be adjusted in length according to actual needs and the stability of the connection is ensured; a first clamping end 81 and a second clamping end 82 are provided at both ends of the center rod 80, and the first clamping end 81 is designed with a polygonal cross-section. After being combined, the center rod 80 in multiple sections of the rod portion 20 can form a whole longer center rod 80. After one section of the center rod 80 is rotated under force, the entire center rod 80 can rotate synchronously, thereby ensuring that the flip rods 30 at different positions of the center rod 80 provide rotational power in different directions through the transmission part 90, thereby improving the flexibility and reliability of assembly and use.

[0057] In some examples, further, the temperature and humidity detection probe 324 uses a fiber Bragg grating sensor to achieve distributed measurement of humidity and temperature by monitoring changes in the refractive index of the optical fiber; the fiber Bragg grating sensor also has the characteristics of miniaturization and lightweight, and is relatively easy to install; since the optical fiber itself is light and flexible, it can be arranged in a complex structure without adding too much burden. The fiber Bragg grating sensor works by detecting changes in the refractive index of the optical fiber caused by environmental changes; changes in temperature directly affect the thermal expansion coefficient of the material, thereby changing the structure of the optical fiber; and humidity affects the hygroscopic properties of the material, further changing the refractive characteristics of the optical fiber; resulting in a shift in the wavelength of the reflected light, and the corresponding temperature and humidity values ​​can be inferred by analyzing the change in wavelength.

[0058] The working principle of this device is explained below.

[0059] The present application provides a retractable grain moisture content measuring instrument, which is used to be inserted into grain to measure the temperature and humidity of grain at multiple locations. The device comprises a piercing portion 10 and a rod portion 20, wherein the piercing portion 10 is located at the head of the rod portion 20, and a plurality of flipping rods 30 are provided. The flipping rods 30 can be flipped to the outside of the device through the strip holes 21 and penetrate into the grain. The retractable temperature and humidity detection probe 324 on the food grain realizes the monitoring function of different positions (three-dimensional space) in the grain, realizes multi-point monitoring at one time and quickly, and has a higher reference value. The device also includes an indication part 40 connected to the outside of the rod part 20. The indication part 40 is used for the staff to know the flipping angle of the flip rod 30 located in the grain through the indication part 40 located outside when operating the equipment outside the grain. The indication part 40 is also connected to the outside of the indication part 40. The operation part 50 is a component manually controlled by the staff. It cooperates with the handheld part 60 to prevent the overall equipment from rotating in the grain. Instead, it is only necessary to realize the rotation of the center rod 80. When the staff controls the operation part 50, the center rod 80 is driven to rotate. The center rod 80 is provided with a transmission part 90. The transmission part 90 includes a plurality of worm gears 91 and other structures. After the worm gears 91 rotate, they can drive the worm wheels 92 on each worm gear 91 to rotate. Then, the rotation of the worm gear 91 drives the overall flip rod 30 to rotate, so that the flip rod 30 can rotate toward the external grain side. At the same time, the flip rod 3 0 is also provided with a grain discharge mechanism 31, which includes a fixed gear 311 provided on the central fixed seat 93, the fixed gear 311 is fixedly provided as a whole, and the grain discharge mechanism 31 also includes a movable gear 312, which is provided in the inner cavity of the flip rod 30 and can rotate with the flip rod 30, and the movable gear 312 is meshed with the fixed gear 311, and when the flip rod 30 rotates outward, the movable gear 312 can be driven to rotate through the rotation cooperation of the fixed gear 311 and the flip rod 30, and the shaft on which the movable gear 312 is located The gear transmission box 313 is connected to the power input end, and has two power output ends, which are respectively connected to the outer sides of the two grain discharge belts 315. Through the above-mentioned arrangement, the flip rod 30 can also drive the two grain discharge belts 315 to rotate and transport at the same time during the rotation process, so that the flip rod 30 can convey the grain in front of the movement to both sides and the rear of the flip rod 30 during the rotation process in the grain, thereby reducing damage to the seeds and also reducing the resistance of the flip rod 30 penetrating into the seeds.

[0060] In order to further reduce the resistance of grain to the equipment and the influence of the equipment on the grain temperature, all the temperature and humidity detection probes 324 in the present device are retractable. The specific operation is as follows. When the staff knows the current flip angle of the flip rod 30 through the indication part 40 and reaches the preset position, the center rod 80 is rotated in the reverse direction to make the worm 91 rotate in the reverse direction, and finally the flip rod 30 is rotated in the reverse direction for a short distance. During this movement, the shape setting of the temperature and humidity detection mechanism 32 itself can help the temperature and humidity detection probe 324 to realize the flexible telescopic control function. The temperature and humidity detection mechanism 32 includes a device A fixed plate 321 is arranged inside the flip rod 30, and an inclined driving groove 322 is opened on the fixed plate 321. A telescopic member 323 is clamped in the driving groove 322. The bottom end of the telescopic member 323 abuts against all the guide friction strips 25. The arrangement direction of the guide friction strips 25 all points to the center direction of the rotation point of the flip rod 30. Therefore, when the flip rod 30 rotates in the opposite direction, the inclined driving groove 322 and the guiding friction strip 25 with a guiding function and the limiting effect make the telescopic member 323 in the driving groove 322 extend outward, and drive the temperature and humidity detection probe 324 thereon to extend to the target detection position.

[0061] Finally, it should be briefly added that the structures in the present device can be combined. For example, the two ends of each center rod 80 are a first clamping end 81 and a second clamping end 82. For example, the clamping connection is arranged in the shape of a regular hexagon. The two ends of the rod portion 20 can also be respectively provided with a first connecting end 22 and a second connecting end 23. Through the combination of the first connecting end 22 and the second connecting end 23, the single rod portion 20 and the internal structure (including the center rod 80) can be combined into a longer tester to meet the monitoring needs at a deeper depth.

[0062] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0063] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A retractable grain moisture content measuring instrument, comprising at least one rod, characterized in that: Also includes: A piercing portion, fixedly disposed on the head of the rod portion at the top; A plurality of flip rods are rotatably arranged in the inner cavity of the rod portion, the flip rods can penetrate and extend to the outside of the rod portion, and the projection positions of the plurality of flip rods in the direction of the insertion portion do not overlap; at least one central rod, each of the central rods being located in the inner cavity of the rod portion; An operating part is arranged at one end of the device away from the piercing part, and the operating part is transmission-connected with all the central rods; The flip rod is also provided with a grain discharge mechanism and a temperature and humidity detection mechanism, wherein the grain discharge mechanism comprises two inclined grain discharge belts, the grain discharge belts are attached to the grain and can be rotatably arranged, and the temperature and humidity detection mechanism comprises a temperature and humidity detection probe, and the temperature and humidity detection probe can be retracted; The rod portion is provided with: A plurality of strip holes are formed on the outer wall of the rod portion, and the length of each strip hole is not less than twice the length of the flip rod; A bonding plate, arranged inside the strip-shaped hole, wherein the end surface of the bonding plate is parallel to the turning path of the turning rod; A plurality of guide friction strips are equidistantly arranged on the laminating plate, and each of the guide friction strips points to the rotation point of the flip rod; Each of the central rods is connected to the flip rods via a transmission part, and the transmission part includes: A plurality of worms are coaxially arranged with the central rod, and the plurality of worms are spaced apart; A plurality of fixing seats, fixedly arranged on the inner wall of the rod portion and connected to the rotating end of the flip rod; A worm wheel, fixedly disposed on the rotating end of each of the flip rods and meshingly connected to the worm; A central fixed column, disposed in the fixed seat and fixedly passing through the flip rod; The food discharge mechanism comprises: A fixed gear, which is fixedly sleeved on the outer wall of the central fixed column and located in the inner cavity of the flip rod; A movable gear is rotatably disposed in the inner cavity of the flip rod through a gear shaft and meshes with the fixed gear, and the diameter of the movable gear is smaller than the diameter of the fixed gear; The gear transmission box is fixedly arranged in the inner cavity of the flip rod, and the gear transmission box includes a power input end and two power output shafts. The power input end is connected to the shaft where the moving gear is located through a bevel gear transmission, and the two grain discharge belts are respectively connected to the two power output shafts.

2. The retractable grain moisture content measuring instrument according to claim 1, characterized in that: The outer end of the rod portion away from one end of the piercing portion is also provided with an indicating portion, and the indicating portion includes a housing and further includes: A threaded sleeve, the threaded sleeve is threadedly connected to the outer wall of the center rod, and an indicating arrow is arranged on the outer end surface of the threaded sleeve; The indicating groove is formed on the shell body and corresponds to the position of the indicating arrow. The indicating arrow moves along the indicating groove and points to the scale line at the corresponding position.

3. The retractable grain moisture content measuring instrument according to claim 1, characterized in that: The outer end of the rod away from one end of the piercing part is also provided with a hand-holding part and a stopper, wherein the hand-holding part comprises a polygonal outer wall, the hand-holding part is sleeved on the outer side of the outer wall of the rod, and the stopper is attached to the surface of the grain or the grain container.

4. The retractable grain moisture content measuring instrument according to claim 1, characterized in that: The temperature and humidity detection mechanism comprises: A fixing plate, arranged in the inner cavity of the flip rod along the rotation direction of the flip rod; A driving groove is formed through the fixing plate, the driving groove is in an inclined state, and the distances between the two ends of the driving groove and the rotation point of the flip rod are different; A telescopic member, the middle portion of which is slidably engaged with the inner side of the driving groove, and the end surface of the telescopic member abuts against the guide friction strip; The temperature and humidity detection probe is fixedly connected to the telescopic member, and the temperature and humidity detection probe can be extended to the outside of the end of the flip rod to be exposed.

5. The retractable grain moisture content measuring instrument according to claim 4 is characterized in that: The two ends of the rod are also provided with a first connecting end and a second connecting end, and the first connecting end and the second connecting end can be fixedly assembled by a buckle that moves linearly; The two ends of the central rod are also provided with a first clamping end and a second clamping end. The first clamping end can be clamped with the second clamping end through linear movement. The cross section of the first clamping end is a polygon.

6. The retractable grain moisture content measuring instrument according to claim 4, characterized in that: The temperature and humidity detection probe adopts a fiber Bragg grating sensor, which is used to realize the distributed measurement of humidity and temperature by monitoring the change of the refractive index of the optical fiber.

Images