Solar radiation litter decomposition device

Abstract

The invention relates to the technical field of decomposition test equipment, and discloses a solar radiation litter decomposition device which comprises a base, a shell is rotatably mounted on the base, and a decomposition box is mounted in the shell; the light filtering film group is used for filtering light in different spectral ranges; the switching assembly is used for switching the filtering range of the filtering film group; the disturbance assembly is used for disturbing litters by utilizing wind power in the experiment process; and the rotating assembly is used for driving the decomposition box to rotate by utilizing wind power in the experiment process. Through the arrangement of the disturbance assembly, the multiple sliding rods are matched to enable the nylon pad to form wavy fluctuating motion, and the nylon pad can drive litters on the surface of the nylon pad to move through the wavy fluctuating motion, so that an air retention layer on the surface of the nylon pad is broken, air flow is promoted, and the contact frequency of the litters with oxygen and light is increased; therefore, test progress is accelerated and test efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of decomposition test equipment, and in particular to a solar radiation litter decomposition device. Background Art

[0002] Litter decomposition determines the storage and turnover of carbon and is a key link in the material cycle of terrestrial ecosystems. It affects the size and stability of soil carbon pools, and thus has an important impact on the global carbon cycle and climate change. Accurately understanding the litter decomposition process and its driving factors is crucial for predicting the response of terrestrial ecosystems to climate change. In traditional concepts, litter decomposition is considered to be a microbial enzyme process driven mainly by temperature and moisture. However, recent studies have found that solar radiation, due to its photodegradation effect, is another universal driving factor in addition to microorganisms, climate and litter characteristics. Ultraviolet rays and short-wave bands in sunlight Visible light can induce photochemical reactions, directly breaking down high-molecular compounds into soluble small-molecule substances, and promoting the decomposition of organic matter, namely photodegradation. The small-molecule substances formed can promote the absorption and utilization of microorganisms, indirectly accelerating the decomposition process. The study also found that different spectral partitions contribute differently to photodegradation. For example, in temperate forest ecosystems, blue light has been proven to be the main driving factor of photodegradation. In order to further study the impact of solar radiation on litter decomposition, special equipment is needed to accurately control and adjust solar radiation conditions in order to quantify the relative contribution of different spectral partitions, radiation intensity and other factors to litter decomposition.

[0003] However, the existing technology has the following problems:

[0004] In the prior art, when conducting solar radiation litter decomposition experiments, the litter is usually placed in a container, a layer of filter film is laid on the container, and then the container is placed outdoors for irradiation. Since the natural decomposition of litter takes a certain amount of time, the overall progress of the experiment is relatively slow and needs to be continued for a long time. In addition, since the litter remains in a static state in the container for a long time, part of the litter may be blocked, resulting in uneven contact with light, and the decomposition state of the litter is also uneven, which has a certain impact on the experimental results. Summary of the Invention

[0005] The purpose of the present invention is to provide a solar radiation litter decomposition device in order to solve the above problems and overcome the defects of the prior art, as described in detail below.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The present invention provides a solar radiation litter decomposition device, comprising: a base, on which a shell is rotatably mounted, and a decomposition box is mounted in the shell; a filter film group, used for filtering light in different spectral ranges; a switching component, used for switching the filtering range of the filter film group; a disturbance component, used for using wind force to disturb litter during the experiment; a rotating component, used for using wind force to drive the decomposition box to rotate during the experiment; the disturbance component comprises a rotating shaft, which is rotatably mounted on the shell, and a wind wheel is mounted on the rotating shaft, a reduction gear group is mounted on the inner wall of the shell, a reciprocating screw is rotatably mounted on the inner wall of the shell, a ball slider is slidably connected to the decomposition box, a plurality of slide rods are slidably mounted in the decomposition box, and nylon pads are connected to the tops of the plurality of slide rods.

[0008] Preferably, the reduction gear set is provided with an input end and an output end, the input end of the reduction gear set is connected to the rotating shaft, and the output end of the reduction gear set is connected to the reciprocating screw.

[0009] Preferably, a reciprocating thread groove is provided on the reciprocating screw, and the ball slider is threadedly connected to the reciprocating thread groove of the reciprocating screw via balls.

[0010] Preferably, the bottom of the ball slider is fixedly connected to a cambered rod, and the plurality of slide rods are arranged in a linear array. When the cambered rod moves, it sequentially slides and contacts with the bottoms of the plurality of slide rods.

[0011] Preferably, two ventilation windows are installed on the shell, and a resistance rod is fixedly connected to the end of the sliding rod away from the ball slider. A spoiler is rotatably installed on the inner wall of the decomposition box, and a protrusion is fixedly connected to the spoiler. Multiple resistance rods are located below the protrusion, and multiple resistance rods contact the protrusion in turn when moving.

[0012] Preferably, the filter film group includes a base film and a plurality of filter films, and the plurality of filter films are mounted on the base film in a linear array, and one of the filter films covers the top of the housing.

[0013] Preferably, the switching assembly includes two reels, both of which are fixedly mounted on the shell, with a reel rotatably mounted inside the reel, the two ends of the base film are respectively fixedly connected to the two reels, and one end of the reel is connected to a handle.

[0014] Preferably, two sets of pressing wheels are installed on the top of the shell, and the two sets of pressing wheels are respectively in contact with the two side edges of the base film.

[0015] Preferably, the rotating assembly includes a mounting ring, which is fixedly connected to the base, and a plurality of blades are fixedly connected to the mounting ring in a circular array. A rotating rod is rotatably installed on the shell, and a transmission wheel is rotatably installed on the inner wall of the shell. A first belt is connected to the output end of the transmission wheel and the reduction gear set, one end of the rotating rod is fixedly connected to a paddle, and the other end of the rotating rod is connected to the transmission wheel by a second belt, and the paddle sequentially shifts the plurality of blades during rotation.

[0016] The beneficial effects are:

[0017] 1. The solar radiation litter decomposition device, through the setting of the disturbance component, enables the multiple sliding rods to cooperate to cause the nylon pad to form a wave-like undulating motion. The nylon pad can drive the litter on its surface to move through the wave-like undulating motion, thereby breaking the air stagnation layer on the surface of the nylon pad, promoting air flow, and increasing the frequency of contact between the litter and oxygen and light, thereby accelerating the test progress and improving the test efficiency. Through the setting of the spoiler, the spoiler can disturb the air in the shell during the reciprocating swing process, promote air circulation, and further increase the frequency of contact between the litter and oxygen.

[0018] 2. The solar radiation litter decomposition device, through the coordination of the switching component and the filter film group, enables the staff to switch the filter film by turning the handle, so as to achieve the technical effect of switching different filter films according to experimental requirements. The operation is relatively convenient, and the unused filter film can be rolled up in the reel to play a protective effect and extend the service life of the filter film.

[0019] 3. The solar radiation litter decomposition device, through the setting of the rotating component, allows the shell to rotate intermittently when wind blows outdoors, so that the filter film on the shell and the litter in the decomposition box can continuously change the angle, so that they are exposed to solar radiation at different angles, so that the litter on the nylon pad is more evenly exposed to solar radiation, avoiding local litter from being in a light-blocked position for a long time and affecting decomposition, and reducing the situation where local litter is affected by uneven light and the uniformity of litter decomposition is affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the switching component structure of the present invention;

[0023] Figure 3 Schematic diagram of the structure of the filter film group of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the disturbance component of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the reduction gear set of the present invention;

[0026] Figure 6 It is a schematic diagram of the sliding rod structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the cambered rod structure of the present invention;

[0028] Figure 8 Schematic diagram of the spoiler structure of the present invention;

[0029] Figure 9 It is a schematic diagram of the convex structure of the present invention;

[0030] Figure 10 It is a schematic structural diagram of the rotating assembly of the present invention;

[0031] Figure 11 It is a schematic diagram of the transmission wheel structure of the present invention;

[0032] Figure 12 It is a schematic diagram of the second belt structure of the present invention.

[0033] The accompanying drawings are marked as follows: 1. Base; 2. Shell; 3. Decomposition box; 4. Ventilation window; 5. Filter film group; 51. Base film; 52. Filter film; 6. Switching assembly; 61. Reel; 62. Reel; 63. Turning handle; 64. Pressure wheel; 7. Disturbance assembly; 71. Rotating shaft; 72. Wind wheel; 73. Reduction gear set; 74. Reciprocating screw; 75. Ball slider; 76. Arc rod; 77. Sliding rod; 78. Nylon pad; 79. Resistance rod; 710. Spoiler; 711. Lug; 8. Rotating assembly; 81. Mounting ring; 82. Blade; 83. Rotating rod; 84. Paddle; 85. Transmission wheel; 86. First belt; 87. Second belt. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other implementations obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figure 1 - Figure 7 , a solar radiation litter decomposition device includes: a base 1, a shell 2 is rotatably mounted on the base 1, and a decomposition box 3 is installed in the shell 2; a disturbance component 7 is used to use wind force to disturb the litter during the experiment; the disturbance component 7 includes a rotating shaft 71, which is rotatably mounted on the shell 2, and a wind wheel 72 is installed on the rotating shaft 71. The inner wall of the shell 2 is installed with a reduction gear set 73, and the reduction gear set 73 is a prior art. Its specific structure and principle are not repeated here. A reciprocating screw rod 74 is rotatably mounted on the inner wall of the shell 2, and the reduction gear set 73 is provided with an input end and an output end. The input end of the reduction gear set 73 is connected to the rotating shaft 71, and the output end of the reduction gear set 73 is connected to the reciprocating screw rod 74. The wind drives the wind wheel 72 to rotate, and the wind wheel 72 drives the rotating shaft 71 to rotate. The rotating shaft 71 drives the reciprocating screw rod 74 to rotate through the reduction gear set 73.

[0037] The decomposition box 3 is slidably connected with a ball slider 75, and a plurality of slide rods 77 are slidably installed in the decomposition box 3. The tops of the plurality of slide rods 77 are connected with nylon pads 78. When in use, the fallen objects are placed on the nylon pads 78 in the decomposition box 3. A reciprocating thread groove is provided on the reciprocating screw rod 74. The ball slider 75 is threadedly connected to the reciprocating thread groove of the reciprocating screw rod 74 through the ball. When the reciprocating screw rod 74 rotates, the cooperation of the reciprocating thread groove and the ball drives the ball slider 75 to move back and forth. The bottom of the ball slider 75 is fixedly connected with an arc rod 76. The plurality of slide rods 77 are arranged in a linear array. When the arc rod 76 moves, it is in sliding contact with the bottom of the plurality of slide rods 77 The top of the arc rod 76 is provided with an arc surface. When the slide rod 77 contacts the arc rod 76, the slide rod 77 is subjected to the reverse thrust of the arc surface of the arc rod 76 and slides upward. When the slide rod 77 is not in contact with the arc rod 76, the slide rod 77 slides down and resets due to gravity. When the slide rod 77 moves upward, the nylon pad 78 can be lifted, so that the multiple slide rods 77 can cooperate to make the nylon pad 78 form a wave-like undulating motion. The nylon pad 78 can drive the fallen objects on its surface to move through the wave-like undulating motion, thereby breaking the air retention layer on the surface of the nylon pad 78, promoting air flow, and increasing the frequency of contact between the fallen objects and oxygen and light, thereby accelerating the test progress and improving the test efficiency.

[0038] Further, see Figure 8- Figure 9 The cam 711 of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end

[0039] Also, see Figure 1 - Figure 3 The filter film group 5 is used to filter light in different spectral ranges; the filter film group 5 includes a base film 51 and multiple filter films 52, and the multiple filter films 52 are installed on the base film 51 in a linear array, one of the filter films 52 covers the top of the shell 2, and different filter films 52 can filter light in different spectral ranges.

[0040] In addition, see Figure 1 - Figure 2 , the switching component 6 is used to switch the filtering range of the filter film group 5; the switching component 6 includes two reels 61, both of which are fixedly mounted on the shell 2, and a reel 62 is rotatably mounted inside the reel 61. The two ends of the base film 51 are respectively fixedly connected to the two reels 62, and one end of the reel 62 is connected to a turning handle 63. When one of the turning handles 63 is turned, the turning handle 63 drives the reel 62 to rotate, thereby reeling the base film 51. When the base film 51 is reeled, different filter films 52 pass over the shell 2 in turn, thereby achieving the technical effect that the two reels 61 can switch the filter film 52 by cooperating.

[0041] It is worth noting that see Figure 2 Two sets of pressing wheels 64 are installed on the top of the shell 2. The two sets of pressing wheels 64 are respectively in contact with the two side edges of the base film 51. The two sets of pressing wheels 64 can press the two side edges of the base film 51 to prevent the base film 51 from partially flipping up.

[0042] It is worth noting that, please refer to Figure 1 、 Figure 10 - Figure 12, the rotating assembly 8 is used to use wind force to drive the decomposition box 3 to rotate during the experiment; the rotating assembly 8 includes a mounting ring 81, the mounting ring 81 is fixedly connected to the base 1, and a plurality of blades 82 are fixedly connected to the mounting ring 81 in a circumferential array. A rotating rod 83 is rotatably installed on the shell 2, and a transmission wheel 85 is rotatably installed on the inner wall of the shell 2. A first belt 86 is connected between the transmission wheel 85 and the output end of the reduction gear set 73, one end of the rotating rod 83 is fixedly connected to a paddle 84, and the other end of the rotating rod 83 is connected to the transmission wheel 85 by a second belt 87. The paddle 84 sequentially toggles multiple The blades 82 and the paddle 84 contact with multiple blades 82 in turn during the continuous rotation. The shell 2 can rotate a certain angle each time the paddle 84 rotates, so that the shell 2 can rotate intermittently when wind blows outdoors, so that the filter film 52 on the shell 2 and the fallen leaves in the decomposition box 3 can continuously change their angles, thereby being exposed to solar radiation at different angles, so that the fallen leaves on the nylon pad 78 are more evenly exposed to solar radiation, avoiding local fallen leaves from being blocked from light for a long time and affecting decomposition, and reducing the situation where local fallen leaves are affected by uneven light and the uniformity of fallen leaves decomposition is affected.

[0043] With the above structure, the working principle of this case is to place the fallen objects on the nylon pad 78 in the decomposition box 3, turn one of the handles 63, and the handle 63 drives the reel 62 to rotate, thereby reeling the base film 51. When one end of the base film 51 is reeled in, the other end of the base film 51 is unfolded. When the base film 51 is reeled in, different filter films 52 pass over the shell 2 in sequence. When the filter film 52 to be used is located above the shell 2, the reeling is stopped, thereby achieving the technical effect of the two reels 61 being able to switch the filter film 52 by cooperating, and the two sets of pressure wheels 64 can press the two side edges of the base film 51. To avoid partial flipping of the base film 51, different filter films 52 can filter light in different spectral ranges. After the staff switches the required filter film 52, the base 1 is placed outdoors. After filtering the light in a part of the spectral range, the solar radiation allows the light in a specific spectral range to be irradiated on the litter, so that the decomposition test of the litter under the irradiation of the specific spectral range of solar radiation can be carried out. The staff can use multiple solar radiation litter decomposition devices, switch different filter films 52, and conduct experiments at the same time to compare the effects of different spectrum ranges on the decomposition of litter.

[0044] When the wind blows, the wind drives the wind wheel 72 to rotate, and the wind wheel 72 drives the rotating shaft 71 to rotate. The rotating shaft 71 drives the reciprocating screw rod 74 to rotate through the reduction gear set 73. The reduction gear set 73 is a mechanical device that uses gear meshing to transmit the power of the input end from the output end, thereby achieving deceleration and torque increase, changing the transmission direction or adjusting the transmission distance. The reduction gear set 73 is a prior art. Its specific structure and principle are not described in detail. When the reciprocating screw rod 74 rotates, it drives the ball slider 75 to reciprocate through the cooperation of the reciprocating thread groove and the ball. The ball slider 75 drives the cambered rod 76 to reciprocate. The top of the cambered rod 76 is provided with a cambered surface. When the cambered rod 76 moves, it contacts multiple slide rods 77 in turn. When the rod 77 contacts the curved rod 76, the sliding rod 77 slides upward due to the reverse thrust of the curved surface of the curved rod 76. When the sliding rod 77 does not contact the curved rod 76, the sliding rod 77 slides down and resets due to gravity. Therefore, during the reciprocating movement of the curved rod 76, multiple sliding rods 77 can move up and reset in turn. When the sliding rod 77 moves up, the nylon pad 78 can be lifted, so that the multiple sliding rods 77 can cooperate to make the nylon pad 78 form a wave-like undulating motion. The nylon pad 78 can drive the fallen matter on its surface to move through the wave-like undulating motion, thereby breaking the air stagnation layer on the surface of the nylon pad 78, promoting air flow, and increasing the frequency of contact between the fallen matter and oxygen and light, thereby accelerating the test progress and improving the test efficiency.

[0045] When the sliding rod 77 moves upward, it drives the contact rod 79 upward. When the contact rod 79 moves upward, it contacts the protrusion 711 and drives the protrusion 711 upward. When the protrusion 711 moves upward, it can drive the spoiler 710 to swing upward. When the contact rod 79 is no longer in contact with the protrusion 711, the spoiler 710 and the protrusion 711 swing down and reset by their own gravity. Since multiple contact rods 79 move up and then move down and reset in turn, multiple contact rods 79 can contact the protrusion 711 in turn, causing the spoiler 710 to swing upward and then swing down and reset continuously. The two ventilation windows 4 on the shell 2 are used for ventilation, and the spoiler 710 can disturb the air in the shell 2 during the reciprocating swing process, promote air circulation, and further increase the frequency of contact between fallen matter and oxygen.

[0046] When the output end of the reduction gear set 73 rotates, it drives the transmission wheel 85 to rotate through the first belt 86. The transmission wheel 85 drives the rotating rod 83 to rotate through the second belt 87. The rotating rod 83 drives the paddle 84 to rotate. During each rotation of the paddle 84, it can contact one of the blades 82. The paddle 84 is subjected to the reverse thrust of the blade 82 and drives the rotating rod 83 and the housing 2 to rotate a certain angle. In this way, the paddle 84 contacts multiple blades 82 in sequence during the continuous rotation process. The housing 2 can rotate a certain angle during each rotation of the paddle 84. This allows the housing 2 to rotate intermittently when wind blows outdoors, so that the filter film 52 on the housing 2 and the litter in the decomposition box 3 can continuously change angles, thereby being exposed to solar radiation at different angles. The litter on the nylon pad 78 is more evenly exposed to solar radiation, thereby preventing local litter from being blocked from light for a long time and affecting decomposition, and reducing the situation where local litter is affected by uneven light and affects the uniformity of litter decomposition.

[0047] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A solar radiation litter decomposition device, characterized in that: include: A base (1), a housing (2) being rotatably mounted on the base (1), and a decomposition box (3) being mounted in the housing (2); A filter film group (5) is used to filter light in different spectral ranges; A switching component (6) for switching the filtering range of the filter film group (5); a disturbance component (7), used to utilize wind power to disturb litter during the experiment; A rotating assembly (8) is used to utilize wind power to drive the decomposition box (3) to rotate during the experiment; The disturbance component (7) includes a rotating shaft (71), the rotating shaft (71) is rotatably mounted on the housing (2), a wind wheel (72) is mounted on the rotating shaft (71), a reduction gear set (73) is mounted on the inner wall of the housing (2), a reciprocating screw (74) is rotatably mounted on the inner wall of the housing (2), a ball slider (75) is slidably connected in the decomposition box (3), a plurality of slide rods (77) are slidably mounted in the decomposition box (3), and nylon pads (78) are connected to the tops of the plurality of slide rods (77).

2. The solar radiation litter decomposition device according to claim 1, characterized in that: The reduction gear set (73) is provided with an input end and an output end. The input end of the reduction gear set (73) is connected to the rotating shaft (71), and the output end of the reduction gear set (73) is connected to the reciprocating screw (74).

3. The solar radiation litter decomposition device according to claim 2, characterized in that: The reciprocating screw rod (74) is provided with a reciprocating thread groove, and the ball slider (75) is threadedly connected to the reciprocating thread groove of the reciprocating screw rod (74) via balls.

4. The solar radiation litter decomposition device according to claim 3, characterized in that: The bottom of the ball slider (75) is fixedly connected to a cambered rod (76), and the plurality of slide rods (77) are arranged in a linear array. When the cambered rod (76) moves, it sequentially slides and contacts with the bottoms of the plurality of slide rods (77).

5. The solar radiation litter decomposition device according to claim 4, characterized in that: Two ventilation windows (4) are installed on the housing (2); one end of the slide rod (77) away from the ball slider (75) is fixedly connected to a resistance rod (79); a spoiler (710) is rotatably installed on the inner wall of the decomposition box (3); a convex piece (711) is fixedly connected to the spoiler (710); a plurality of the resistance rods (79) are all located below the convex piece (711); and the plurality of the resistance rods (79) sequentially contact the convex piece (711) when moving.

6. The solar radiation litter decomposition device according to claim 1, characterized in that: The filter film group (5) comprises a base film (51) and a plurality of filter films (52), wherein the plurality of filter films (52) are mounted on the base film (51) in a linear array, and one of the filter films (52) covers the top of the housing (2).

7. The solar radiation litter decomposition device according to claim 6, characterized in that: The switching assembly (6) comprises two reels (61), both of which are fixedly mounted on the housing (2), a reel (62) being rotatably mounted inside the reel (61), the two ends of the base film (51) being fixedly connected to the two reels (62), and one end of the reel (62) being connected to a turning handle (63).

8. The solar radiation litter decomposition device according to claim 7, characterized in that: Two groups of pressing wheels (64) are installed on the top of the shell (2), and the two groups of pressing wheels (64) are respectively in contact with the two side edges of the base film (51).

9. The solar radiation litter decomposition device according to claim 2, characterized in that: The rotating assembly (8) comprises a mounting ring (81), the mounting ring (81) being fixedly connected to the base (1), a plurality of blades (82) being fixedly connected to the mounting ring (81) in a circumferential array, a rotating rod (83) being rotatably mounted on the housing (2), a transmission wheel (85) being rotatably mounted on the inner wall of the housing (2), a first belt (86) being transmission-connected between the transmission wheel (85) and the output end of the reduction gear set (73), a paddle (84) being fixedly connected to one end of the rotating rod (83), a second belt (87) being transmission-connected between the other end of the rotating rod (83) and the transmission wheel (85), and the paddle (84) sequentially shifting the plurality of blades (82) during the rotation process.

Images