CN115825400B - Soil moisture detection device for monitoring plant growth environment - Google Patents
Soil moisture detection device for monitoring plant growth environment Download PDFInfo
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- CN115825400B CN115825400B CN202310117175.XA CN202310117175A CN115825400B CN 115825400 B CN115825400 B CN 115825400B CN 202310117175 A CN202310117175 A CN 202310117175A CN 115825400 B CN115825400 B CN 115825400B
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Abstract
The invention belongs to the technical field of detection of water retention conditions of plant root systems, in particular to a soil moisture detection device for monitoring plant growth environments, which comprises a U-shaped frame, wherein a top plate is fixedly connected to one end of the top of the U-shaped frame, a plurality of moisture detectors are arranged on the inner side of the U-shaped frame through an automatic adjustment detection mechanism, and automatic cleaning mechanisms capable of automatically cleaning soil on the surfaces of the moisture detectors are arranged on two sides of the plurality of moisture detectors. According to the invention, by arranging the automatic adjustment detection mechanism, the distance between the plurality of moisture detectors can be flexibly adjusted according to the growth condition of plants, the applicability of the device is improved, different detection data near the plant root system can be obtained by one-time detection, the analysis of the water retention of the plant root system is facilitated, and the convenience of the device in detecting the water retention of the plant root system is improved.
Description
Technical Field
The invention belongs to the technical field of detection of water retention of plant root systems, and particularly relates to a soil moisture detection device for monitoring plant growth environments.
Background
Soil moisture is an important component of water resources and is the basis for the survival of all terrestrial organisms. The free water content in the soil is a main target of soil moisture content monitoring and is one of key factors influencing the growth and yield of farmland crops. The real-time understanding of the transverse distribution state of the water in the soil is of great significance to the agricultural production for the understanding of the distribution of the crop root system, the change of soil moisture content and the water retention of the crop root system.
However, most of the existing soil moisture detection devices cannot detect the soil moisture at one time to obtain different detection data near the plant root system, multiple times of detection are needed to be carried out near the plant root system according to the specific growth condition of the plant root system, the water retention of the plant root system can be analyzed according to the multiple detection results, and the operation is complicated; in addition, the existing soil moisture detection device is mostly not provided with the function of automatically cleaning the probe of the moisture detector, so that the soil is adhered to the probe of the moisture detector to influence the detection result, and the soil on the probe needs to be manually cleaned after each use, so that the soil is more troublesome.
Therefore, it is necessary to invent a soil moisture detecting device for monitoring plant growth environment to solve the above problems.
Disclosure of Invention
In view of the above, the present invention provides a soil moisture detecting device for monitoring plant growth environment, so as to solve the above-mentioned problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a soil moisture detection device for vegetation environmental monitoring, includes the U-shaped frame, the top one end fixedly connected with roof of U-shaped frame, a plurality of moisture detectors are installed through automatic adjustment detection mechanism to the inboard of U-shaped frame, and the both sides of a plurality of moisture detectors are provided with can carry out clear self-cleaning mechanism with moisture detector surface earth automatically.
Further, automatic adjustment detection mechanism is including setting up a pair of threaded rod in the U-shaped frame inboard, and the bottom one end and the U-shaped frame rotation of a pair of threaded rod are connected, a pair of the equal fixedly connected with of top one end of threaded rod is first sprocket, a pair of the outside joint activity of first sprocket has cup jointed same chain, the bottom one end fixed mounting of roof has first motor, the second sprocket that output shaft one end fixedly connected with of first motor used with the cooperation of chain, and the second sprocket setting is between two first sprockets, a pair of the outside common screw thread of threaded rod cup joints same regulating plate, the below of regulating plate is provided with scissors fork mechanism, a plurality of moisture detector fixed mounting is in the bottom one end of scissors fork mechanism hinge point, the top one end of scissors fork mechanism hinge point is all through slider fixedly connected with scale, the spout that uses with a plurality of slider cooperation is offered to the surface symmetry of regulating plate, the top one end fixed mounting of regulating plate has the biax motor, and biax motor sets up between two spouts, the same regulating plate has two screw thread of screw thread joint in the equal side joint.
Further, the two through grooves and the two sliding grooves are arranged in a mutually perpendicular mode, and the cross section of the adjusting plate is cross-shaped.
Further, the cross-section shape of U-shaped frame is the U-shaped, the U-shaped frame comprises a square frame and two curb plates of setting in square frame top one end, the inboard of U-shaped frame and the top one end of regulating plate all are provided with the scale that uses with the scale cooperation.
Further, the automatic cleaning mechanism comprises a first worm wheel fixedly sleeved outside one of the threaded rods, roller brushes matched with the moisture detector are arranged on two sides of one of the threaded rods, two ends of two roller brush shafts are rotatably connected with the U-shaped frame, and worms meshed with the first worm wheel are fixedly sleeved outside the two roller brush shafts.
Further, the top one end rotation of square frame is connected with two second worm wheels with worm meshing in the U-shaped frame, and two second worm wheels set up respectively in the one side that two worms kept away from each other, two equal fixedly connected with disc in top one end of second worm wheel shaft, two equal fixedly connected with round pin in top one end of disc, and two round pins all set up the eccentric position at the disc, two the outside of round pin has all slided and has cup jointed the guide frame, two locating plates of joint fixedly connected with between two curb plates in the U-shaped frame, two the outside of locating plate has all slided and has cup jointed the fly leaf, and two fly leaf sets up respectively in the outside of two second worm wheels, two one side of the top one end of fly leaf respectively with two guide frame fixed connection, two one side that the fly leaf is close to each other all is provided with a plurality of plectrums that cooperate the use with the cylinder brush.
Further, the top one end rotation of square frame is connected with two pairs of boards of dialling in the U-shaped frame, and two pairs of boards of dialling set up respectively in the one side that two fly leaves each other, two pairs of the equal fixedly connected with of one side that the board is close to moisture detector and fly leaf cooperation use hammer block, two pairs of the one side that the board was kept away from moisture detector all is provided with the fixed plate, and two pairs of fixed plates all with the square frame fixed connection in the U-shaped frame, all be provided with the spring between fixed plate and the corresponding board of dialling, and the both ends of spring respectively with dialling board and fixed plate fixed connection, the one side that the board was close to the fly leaf fixedly connected with lug, and lug and hammer block crisscross the setting, two the equal fixedly connected with of one side that the fly leaf is kept away from each other is a pair of gyro wheel that uses with the lug cooperation.
Further, the cross section shape of the two guide frames is square, and the cross section shape of the protruding block is triangular.
Further, the two pairs of shifting plates are rotatably connected with the square frame in the U-shaped frame through the mounting shaft, and the side section shape of the movable plate is in a shape like a Chinese character 'Hui'.
The invention has the technical effects and advantages that:
1. according to the invention, by arranging the automatic adjustment detection mechanism, the distance between the plurality of moisture detectors can be flexibly adjusted according to the growth condition of plants, the applicability of the device is improved, different detection data near the plant root system can be obtained by one-time detection, the analysis of the water retention of the plant root system is facilitated, and the convenience of the device in detecting the water retention of the plant root system is improved.
2. The automatic cleaning mechanism is arranged, so that the automatic cleaning of the moisture detector probe can be realized, the cleaning convenience of the moisture detector probe in the using process of the device can be effectively improved, a good cleaning effect can be maintained after the device is used for a plurality of times, the cyclic continuity of the device can be ensured, and the overall practicability of the device is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a front view of an embodiment of the present invention;
FIG. 2 illustrates a partial structure split schematic of an embodiment of the present invention;
FIG. 3 shows a partial structure of an embodiment of the present invention in a top sectional view;
FIG. 4 shows a partial structure in a plan view in plan view of an embodiment of the present invention;
FIG. 5 shows a partial right cross-sectional plan view of an embodiment of the present invention;
FIG. 6 shows an enlarged schematic view of the A-section structure of an embodiment of the present invention;
FIG. 7 shows an enlarged schematic view of the structure of the portion B according to the embodiment of the present invention;
in the figure: 1. a U-shaped frame; 2. a top plate; 3. automatic adjustment detection mechanism; 31. a threaded rod; 32. a first sprocket; 33. a chain; 34. a first motor; 35. a second sprocket; 36. an adjustment plate; 37. a scissors mechanism; 38. a ruler; 39. a chute; 40. a biaxial motor; 41. a screw; 42. a screw block; 43. a through groove; 5. a moisture detector; 6. an automatic cleaning mechanism; 61. a first worm wheel; 62. a roller brush; 63. a worm; 64. a second worm wheel; 65. a disc; 66. round pins; 67. a guide frame; 68. a positioning plate; 69. a movable plate; 70. a pulling piece; 71. a poking plate; 72. a hammer block; 73. a fixing plate; 74. a spring; 75. a bump; 76. and a roller.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a soil moisture detection device for monitoring plant growth environment, which is shown in figures 1-7, and comprises a U-shaped frame 1, wherein one end of the top of the U-shaped frame 1 is fixedly connected with a top plate 2, a plurality of moisture detectors 5 are arranged on the inner side of the U-shaped frame 1 through an automatic adjustment detection mechanism 3, and automatic cleaning mechanisms 6 capable of automatically cleaning soil on the surfaces of the moisture detectors 5 are arranged on two sides of the plurality of moisture detectors 5;
the automatic adjustment detection mechanism 3 comprises a pair of threaded rods 31 arranged on the inner side of the U-shaped frame 1, one end of the bottoms of the pair of threaded rods 31 is rotationally connected with the U-shaped frame 1, one end of the tops of the pair of threaded rods 31 is fixedly connected with a first sprocket 32, the outer parts of the pair of first sprockets 32 are movably sleeved with the same chain 33 together, a first motor 34 is fixedly arranged at one end of the bottom of the top plate 2, a second sprocket 35 matched with the chain 33 is fixedly connected at one end of an output shaft of the first motor 34, the second sprocket 35 is arranged between the two first sprockets 32, the outer parts of the pair of threaded rods 31 are sleeved with the same adjusting plate 36 in a common thread way, a shearing fork mechanism 37 is arranged below the adjusting plate 36, a plurality of moisture detectors 5 are fixedly arranged at one end of the bottom of a hinging point of the shearing fork mechanism 37, one end of the hinging point of the shearing fork mechanism 37 is fixedly connected with a scale 38 through a sliding block, sliding grooves 39 matched with a plurality of sliding blocks are symmetrically arranged on the surface of the adjusting plate 36, a double-shaft motor 40 is fixedly arranged at one end of the top of the adjusting plate 36, the double-shaft motor 40 is arranged between the two sliding grooves 39 and the two sliding blocks 42 are symmetrically connected with two screw blocks 42 which are matched with the two screw threads 42 at the two ends of the two screw rods 42, and the two screw rods are screwed with the two screw rods 42 are fixedly connected with the two screw rods 42;
the two through grooves 43 and the two sliding grooves 39 are arranged perpendicular to each other, and the cross section of the adjusting plate 36 is cross-shaped;
the cross section of the U-shaped frame 1 is U-shaped, the U-shaped frame 1 consists of a square frame and two side plates arranged at one end of the top of the square frame, and the inner side of the U-shaped frame 1 and one end of the top of the adjusting plate 36 are both provided with graduated scales matched with the staff 38;
when the soil moisture detection device is used, the device can be moved to the vicinity of a plant root system to be detected, then the double-shaft motor 40 is opened, the two screws 41 are driven to rotate by the double-shaft motor 40, so that the two threaded blocks 42 slide in the two through grooves 43 respectively and are close to each other, the two threaded blocks 42 drive the shearing fork mechanism 37 to stretch, the shearing fork mechanism 37 drives the moisture detectors 5 and the scale 38 to synchronously move, so that the distance between the moisture detectors 5 is increased, and at the moment, the distance between the moisture detectors 5 can be adjusted by the operation while observing the scale on the adjusting plate 36 according to the growth condition of plants to be detected, so as to adapt to the measurement of the plants with different growth conditions;
during measurement, the first motor 34 can be turned on, the second chain wheel 35 is driven to rotate through the first motor 34, the chain 33 is driven to rotate through the second chain wheel 35, the two first chain wheels 32 are driven to rotate through the chain 33, the threaded rods 31 are driven to rotate through the two first chain wheels 32, the two threaded rods 31 synchronously rotate in the adjusting plate 36, the adjusting plate 36 pushes the plurality of adjusted moisture detectors 5 to move downwards through the fork shearing mechanism 37, probes of the plurality of moisture detectors 5 are inserted into soil, the water retention of plant roots is detected by the plurality of moisture detectors once, and during detection, the water retention of the plant roots can be analyzed according to the distance between the plurality of moisture detectors 5 and plant stems and the detection result;
after the detection is finished, only the first motor 34 is required to be turned on again, the two threaded rods 31 are driven to reversely rotate through the cooperation between the first motor 34 and the structures, so that the two threaded rods 31 drive the adjusting plate 36 to move upwards, the adjusting plate 36 drives the plurality of moisture detectors 5 to synchronously move upwards through the shearing mechanism 37, and the probes of the plurality of moisture detectors 5 are pulled out of soil, so that the detection is finished once;
according to the invention, the automatic adjustment detection mechanism 3 is arranged, so that the distance between the plurality of moisture detectors 5 can be flexibly adjusted according to the growth condition of plants, the applicability of the device is improved, different detection data near the plant root system can be obtained by one-time detection, the analysis of the water retention of the plant root system is facilitated, and the convenience of the device in detecting the water retention of the plant root system is improved.
As shown in fig. 1 to 7, the automatic cleaning mechanism 6 comprises a first worm wheel 61 fixedly sleeved on the outer part of one of the threaded rods 31, roller brushes 62 matched with the moisture detector 5 are arranged on two sides of one pair of threaded rods 31, two ends of brush shafts of the two roller brushes 62 are rotatably connected with the U-shaped frame 1, and worms 63 meshed with the first worm wheel 61 are fixedly sleeved on the outer parts of the brush shafts of the two roller brushes 62;
the top end of the square frame in the U-shaped frame 1 is rotationally connected with two second worm gears 64 meshed with the worm gears 63, the two second worm gears 64 are respectively arranged on one sides of the two worm gears 63, which are far away from each other, the top ends of the wheel shafts of the two second worm gears 64 are fixedly connected with round discs 65, the top ends of the two round discs 65 are fixedly connected with round pins 66, the two round pins 66 are respectively arranged at the eccentric positions of the round discs 65, the outer parts of the two round pins 66 are respectively and slidingly sleeved with a guide frame 67, two positioning plates 68 are fixedly connected between the two side plates in the U-shaped frame 1 together, the outer parts of the two positioning plates 68 are respectively and slidingly sleeved with a movable plate 69, the two movable plates 69 are respectively arranged on the outer sides of the two second worm gears 64, one sides of the top ends of the two movable plates 69 are respectively and fixedly connected with the two guide frames 67, and one sides of the two movable plates 69, which are close to each other, are respectively provided with a plurality of poking plates 70 matched with the roller brushes 62;
two pairs of shifting plates 71 are rotatably connected to one end of the top of the square frame in the U-shaped frame 1, the two pairs of shifting plates 71 are respectively arranged on one side, away from each other, of the two movable plates 69, a hammer block 72 matched with the movable plates 69 is fixedly connected to one side, close to the moisture detector 5, of the two pairs of shifting plates 71, a fixed plate 73 is arranged on one side, away from the moisture detector 5, of the two pairs of shifting plates 71, the two pairs of fixed plates 73 are fixedly connected with the square frame in the U-shaped frame 1, springs 74 are arranged between the fixed plates 73 and the corresponding shifting plates 71, two ends of the springs 74 are respectively fixedly connected with the shifting plates 71 and the fixed plates 73, a lug 75 is fixedly connected to one side, close to the movable plates 69, of the shifting plates 71 and the hammer block 72 are arranged in a staggered manner, and a pair of idler wheels 76 matched with the lug 75 are fixedly connected to one side, away from each other, of the two movable plates 69;
the cross section of the two guide frames 67 is square, and the cross section of the convex blocks 75 is triangular;
the two pairs of shifting plates 71 are rotatably connected with a square frame in the U-shaped frame 1 through mounting shafts, and the side section shape of the movable plate 69 is in a shape like a Chinese character 'Hui';
while the probes of the moisture detectors 5 are pulled out of the soil, the probes of the moisture detectors 5 are contacted with the roller brushes 62 at the two sides in the moving process while the probes of the moisture detectors 5 are moved upwards, and the two roller brushes 62 are moved upwards while the probes of the moisture detectors 5 are moved upwards, so that the soil adhered on the probes of the moisture detectors 5 is cleaned;
simultaneously, the two threaded rods 31 drive the first worm wheel 61 to rotate, the first worm wheel 61 drives the two roller brushes 62 to synchronously rotate through the meshing action between the first worm wheel 61 and the two worms 63, and the two roller brushes 62 are rotated while the plurality of moisture detectors 5 move upwards, so that the phenomenon that the roller brushes 62 are fixed and the cleaning effect is not ideal is avoided;
at the same time of the rotation of the two worms 63, the two worms 63 drive the two circular discs 65 to rotate through the meshing action between the two second worm wheels 64 respectively, the two circular pins 66 are respectively driven to synchronously rotate through the two circular discs 65, the two circular pins 66 respectively slide in the two guide frames 67, and the two movable plates 69 are respectively driven to slide back and forth outside the positioning plates 68 through the two guide frames 67, so that the two movable plates 69 respectively drive the plurality of poking sheets 70 to slide back and forth synchronously, and therefore, when the two roller brushes 62 rotate, the plurality of poking sheets 70 are utilized to poke the bristles of the roller brushes 62, the mud adhered on the bristles of the roller brushes 62 is shaken off, and the cleaned mud adhered on the roller brushes 62 is avoided;
when the two movable plates 69 reciprocate, when the movable plates 69 move to one side, the roller 76 at one side of the movable plates 69 collides with the convex blocks 75 and pushes the shifting plate 71 to rotate towards the direction close to the corresponding fixed plate 73 through the convex blocks 75, so that the springs 74 are compressed, when the roller 76 moves to a position far away from the position not abutting against the convex blocks 75, the shifting plate 71 reversely rotates under the stretching reset action of the springs 74 and drives the hammer blocks 72 to strike the movable plates 69, and the movable plates 69 reciprocate in sequence, and when the movable plates 69 drive the plurality of shifting blocks 70 to reciprocate to clean the bristles on the roller brush 62, the movable plates 69 are continuously struck by the hammer blocks 72 through the cooperation among the structures, so that the movable plates 69 vibrate while moving, and the shifting blocks 70 are prevented from adhering to soil when the bristles are reciprocally poked by vibration;
according to the invention, the automatic cleaning mechanism 6 is arranged, so that the automatic cleaning of the probe of the moisture detector 5 can be realized, the convenience of cleaning the probe of the moisture detector 5 in the using process of the device can be effectively improved, a good cleaning effect can be maintained after the device is used for many times, the cyclic continuity of the device can be ensured, and the overall practicability of the device is increased.
Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. Soil moisture detection device for plant growth environment monitoring, including U-shaped frame (1), its characterized in that: a top plate (2) is fixedly connected to one end of the top of the U-shaped frame (1), a plurality of moisture detectors (5) are mounted on the inner side of the U-shaped frame (1) through an automatic adjustment detection mechanism (3), and automatic cleaning mechanisms (6) capable of automatically cleaning soil on the surfaces of the moisture detectors (5) are arranged on two sides of the plurality of moisture detectors (5);
the automatic adjustment detection mechanism (3) comprises a pair of threaded rods (31) arranged on the inner side of the U-shaped frame (1), one end of the bottom of each threaded rod (31) is rotationally connected with the U-shaped frame (1), one pair of the threaded rods (31) is fixedly connected with a first sprocket (32) at one end of the top, one pair of the first sprockets (32) are movably sleeved with the same chain (33) together, one end of the bottom of the top plate (2) is fixedly provided with a first motor (34), one end of an output shaft of the first motor (34) is fixedly connected with a second sprocket (35) matched with the chain (33), the second sprocket (35) is arranged between the two first sprockets (32), one pair of the threaded rods (31) are sleeved with the same adjustment plate (36) through external common threads, a shearing fork mechanism (37) is arranged below the adjustment plate (36), a plurality of the moisture detectors (5) are fixedly arranged at one end of the bottom of a hinging point of the shearing fork mechanism (37), one end of the sliding rod (37) is fixedly connected with a sliding chute (40) through the sliding chute (39), one end of the sliding chute (40) is fixedly connected with one end of the sliding chute (40), and the sliding chute (40) is fixedly matched with the sliding chute (40), the output shafts at two ends of the double-shaft motor (40) are fixedly connected with screws (41), threaded blocks (42) are sleeved outside the screws (41), through grooves (43) matched with the threaded blocks (42) are symmetrically formed in the surface of the adjusting plate (36), and one ends of the bottoms of the two threaded blocks (42) penetrate through the through grooves (43) and are fixedly connected with two hinge points in the scissors mechanism (37);
the automatic cleaning mechanism (6) comprises a first worm wheel (61) fixedly sleeved outside one of the threaded rods (31), roller brushes (62) matched with the moisture detector (5) are arranged on two sides of one pair of the threaded rods (31), two ends of brush shafts of the two roller brushes (62) are rotationally connected with the U-shaped frame (1), and worms (63) meshed with the first worm wheel (61) are fixedly sleeved outside the brush shafts of the two roller brushes (62);
two second worm gears (64) meshed with the worm gears (63) are rotatably connected to one end of the top of the square frame in the U-shaped frame (1), the two second worm gears (64) are respectively arranged on one sides of the two worm gears (63) which are far away from each other, a disc (65) is fixedly connected to one end of the top of each wheel shaft of the two second worm gears (64), round pins (66) are fixedly connected to one end of the top of each disc (65), the two round pins (66) are respectively arranged at the eccentric positions of the discs (65), guide frames (67) are respectively and slidably sleeved on the outer parts of the two round pins (66), two positioning plates (68) are fixedly connected between the two side plates in the U-shaped frame (1), movable plates (69) are respectively and slidably sleeved on the outer sides of the two second worm gears (64), one sides of one ends of the tops of the two movable plates (69) are respectively and fixedly connected with the two guide frames (67), and the two movable plates (69) are respectively and the two movable plates (62) are respectively and close to one sides of the two movable plates (69) which are respectively and are matched with a plurality of rotary drums (70);
the utility model discloses a water content detector, including square frame, fixed plate (73), spring (74), lug (75) and lug (72), fixed plate (73) are provided with to the top one end rotation of square frame in U-shaped frame (1), and two are to setting up respectively in two movable plate (69) one sides that keep away from each other, two are to setting up respectively dial plate (71) one side that is close to moisture detector (5) equal fixedly connected with and movable plate (69) cooperation use hammer block (72), two are to dial plate (71) one side that keeps away from moisture detector (5) all is provided with fixed plate (73), and two are to fixed plate (73) all with square frame fixed connection in U-shaped frame (1), all be provided with spring (74) between fixed plate (73) and the corresponding plate (71), and the both ends of spring (74) are respectively with dial plate (71) and fixed plate (73) fixed connection, dial plate (71) one side that is close to movable plate (69) fixedly connected with lug (75), and lug (75) and hammer block (72) crisscross setting, two one side that movable plate (69) kept away from each other is provided with a pair of lug (76) cooperation use.
2. A soil moisture detection device for plant growth environment monitoring as claimed in claim 1 wherein: the two through grooves (43) and the two sliding grooves (39) are arranged perpendicular to each other, and the cross section of the adjusting plate (36) is cross-shaped.
3. A soil moisture detection device for plant growth environment monitoring as claimed in claim 1 wherein: the cross-section shape of U-shaped frame (1) is the U-shaped, U-shaped frame (1) comprises square frame and two curb plates of setting in square frame top one end, the inboard of U-shaped frame (1) and the top one end of regulating plate (36) all are provided with the scale that uses with scale (38) cooperation.
4. A soil moisture detection device for plant growth environment monitoring as claimed in claim 1 wherein: the cross-sectional shapes of the two guide frames (67) are square frames, and the cross-sectional shapes of the convex blocks (75) are triangular.
5. A soil moisture detection device for plant growth environment monitoring as claimed in claim 1 wherein: the two pairs of shifting plates (71) are rotatably connected with a square frame in the U-shaped frame (1) through mounting shafts, and the side section shape of the movable plate (69) is in a shape like a Chinese character 'Hui'.
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