Sampling device for forestry ecological protection

Abstract

The invention discloses a sampling device for forestry ecological protection, and particularly relates to the technical field of forestry ecological protection, the sampling device comprises a cart, the middle of the upper end of the cart is slidably connected with a fixing mechanism, the upper part of the fixing mechanism is slidably connected with a limiting mechanism, and the upper part of the limiting mechanism is provided with a pushing mechanism; a sampling mechanism is fixedly connected to the lower portion of the pushing mechanism, a sliding mechanism is slidably connected to the lower portion of the fixing mechanism, and a sweeping mechanism is slidably connected to the front side of the upper end of the cart. According to the sampling device for forestry ecological protection, through mutual cooperation of the sliding rod and the inner surface of the second chute, branches, topsoil and the like on a collection area can be quickly and effectively cleaned up before sampling is prepared, the sampling device can be reset after sampling is finished, excessive damage to the ecology of the collection area is avoided, and the sampling device is convenient to use. Through cooperation of a limiting cylinder, a round push plate and the like, spiral descending of the sampling cylinder is achieved, and excessive damage to original soil in a non-collection area is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of forestry ecological protection, and in particular to a sampling device for forestry ecological protection. Background Art

[0002] Forestry ecological protection is a comprehensive concept that involves the protection, utilization and management of forest resources. Forests are important habitats for biodiversity. Protecting forest resources can protect rare and endangered species, maintain biodiversity and ecological security. Sampling for forestry ecological protection aims to collect data on forest ecosystems to assess their health, monitor ecological changes, identify potential threats and develop effective protection measures. Through sampling, information on forest vegetation, soil, water quality, biodiversity and other aspects can be obtained, providing a scientific basis for forestry ecological protection.

[0003] Chinese patent announcement number CN116908244B discloses a sampling device for forestry ecological protection, including an overall external structure, a bottom support structure, and an internal detection structure. The overall external structure also includes an overall bottom plate. The invention utilizes the characteristics that hydrogen ions can move freely in the direction of low potential in aqueous solution, and hydroxide ions can move freely in the direction of high potential in molten salt or aqueous solution. Acid sensors and alkaline sensors are arranged inside the detection shell. When the acid-base sensing rod releases microcurrent, the outside of the acid-base sensing rod is affected by the power supply, and a charge film is formed on the surface. When the acid-base sensing rod is inserted into the soil, when the outside is acidic, the hydrogen ions on the charge film are responsible for conducting the potential and acting on the acidic sensor to lower the pH value; when the outside is alkaline, the hydroxide ions on the charge film are responsible for conducting the potential and acting on the alkaline sensor to increase the pH value. Through the above reaction, it is quickly detected whether the acidity and alkalinity of the bottom soil meet the requirements.

[0004] However, during the operation of the above-mentioned device, it is impossible to quickly and effectively clean the area above the soil collection target area before sampling, and after the sampling is completed, it is impossible to cover the collection area with loose soil, branches and weeds again to avoid causing excessive damage to the ecology of the collection area. Summary of the invention

[0005] The main purpose of the present invention is to provide a sampling device for forestry ecological protection, which can effectively solve the problem that it is not possible to quickly and effectively clean the area above the soil collection target area before sampling, and after the sampling is completed, the floating soil, branches, weeds, etc. can be covered again above the collection area to avoid excessive damage to the ecology of the collection area.

[0006] To achieve the above object, the technical solution adopted by the present invention is: A sampling device for forestry ecological protection comprises a cart, wherein a fixing mechanism is slidably connected to the middle part of the upper end of the cart, a limiting mechanism is slidably connected to the upper part of the fixing mechanism, a pushing mechanism is arranged on the upper part of the limiting mechanism, a sampling mechanism is fixedly connected to the lower part of the pushing mechanism, a sliding mechanism is slidably connected to the lower part of the fixing mechanism located on the left side of the upper end of the cart, and a cleaning mechanism is slidably connected to the front side of the upper end of the cart.

[0007] Preferably, a guide rail 1 is fixedly connected to the rear side of the upper end of the cart, a counterweight block is fixedly connected to the rear side of the middle part of the upper end of the cart, a limiting ring 1 is fixedly connected to the middle part of the upper end of the cart, a guide rail 2 is fixedly connected to the right side of the upper end of the cart, and a limiting ring 2 is fixedly connected to the front side of the upper end of the cart.

[0008] Preferably, the sliding mechanism includes a rectangular slider, an upper end of which is provided with an inclined groove 2, a middle portion of the rear end of the rectangular slider is provided with a rectangular groove 3, an inner surface of the rectangular groove 3 is slidably connected to an outer surface of a front end of a guide rail 1, a Z-shaped rod is fixedly connected to the left side of the front end of the rectangular slider, and the outer front side of the Z-shaped rod is slidably connected to an inner surface of a limit ring 2.

[0009] Preferably, the cleaning mechanism includes a rectangular plate that is slidably connected to the front side of the upper end of the cart, the rear end of the rectangular plate is fixedly connected to the right side of the front end of the Z-shaped rod, the upper end of the rectangular plate is rotatably connected to a plurality of rollers, the upper parts of the outer surfaces of the plurality of rollers are fixedly connected to gears, the plurality of gears are meshed with each other, and the lower ends of the plurality of rollers are fixedly connected to round brushes.

[0010] Preferably, vertical brushes are fixedly connected to the left and right ends of the rectangular plate, a rack is meshed on the outer surface of the gear near the Z-shaped rod, and the lower end of the rack is fixedly connected to the front side of the upper end of the cart.

[0011] Preferably, the fixing mechanism includes a hydraulic cylinder 1 fixedly connected to the upper end of the counterweight block, the output end of the hydraulic cylinder 1 is fixedly connected to a fixing plate, the rear side of the lower end of the fixing plate is fixedly connected to a sliding rod, the middle part of the upper end of the fixing plate is fixedly connected to a fixing ring, the inner surface of the fixing ring is provided with two inclined grooves 1 in a ring array, the right end of the fixing plate is slidably connected to the outer surface of the guide rail 2, a through hole is provided on the upper end of the fixing plate at the lower end of the fixing ring, the outer surface of the sliding rod is slidably connected to the inner surface of the limiting ring 1, and the middle and lower part of the outer surface of the sliding rod is slidably connected to the inner surface of the inclined groove 2.

[0012] Preferably, the limiting mechanism includes a limiting cylinder slidably connected to the inner surface of the through hole, and two limiting blocks are rotatably connected in a circular array at the upper end of the limiting cylinder. The two limiting blocks on the side close to the limiting cylinder are fixedly connected to a plurality of springs, and the ends of the plurality of springs away from the limiting blocks are commonly fixedly connected to the limiting cylinder.

[0013] Preferably, a plurality of arc grooves are provided in a circular array on the inner surface of the limit cylinder, and two rectangular grooves 2 are provided in a circular array on the upper surface of the outer surface of the limit cylinder. The upper ends of the two limit blocks close to the limit cylinder are fixedly connected with rectangular blocks, and the lower ends of the two limit blocks are fixedly connected with inclined sliding blocks, and the ends of the several springs on the same side away from the limit blocks are fixedly connected to the inner surface of the rectangular groove 2.

[0014] Preferably, the pushing mechanism includes a hydraulic cylinder 2 fixedly connected to the upper end of the fixed plate, the output end of the hydraulic cylinder 2 is rotatably connected to a circular push plate, the upper end of the circular push plate is fixedly connected to a circular ring, the lower middle part of the circular push plate is fixedly connected to a fixed cylinder, the outer surface of the circular ring is provided with two rectangular grooves 1 in an annular array, the outer surface of the circular push plate is provided with a plurality of circular protrusions in an annular array, the outer surfaces of the plurality of circular protrusions are respectively slidably connected to the inner surfaces of the matching arc-shaped grooves, and the inner surfaces of the two rectangular grooves 1 are respectively slidably connected to the outer surfaces of the matching rectangular blocks.

[0015] Preferably, the sampling mechanism comprises a sampling cylinder threadably connected to the inner surface of the fixing cylinder, and a spiral blade is fixedly connected to the outer surface of the sampling cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention can perform a comprehensive and detailed cleaning of the sampling target area before sampling through the cooperation of the fixing mechanism, the sliding mechanism and the cleaning mechanism, remove branches, weeds and other debris, and reduce the possibility of these foreign impurities mixing into the soil sample. At the same time, the coordinated work of the pushing mechanism, the limiting mechanism and the fixing mechanism can realize the precise positioning and stable descent of the sampling mechanism, ensure that the sampling tube can accurately reach the predetermined sampling depth, avoid the deviation of the sampling position, and further improve the accuracy of sampling. At the same time, the sampling mechanism can more evenly collect soil from different positions during the rotating descent sampling process, making the sample more representative. After the sampling is completed, the branches and weeds and floating soil that have been cleaned on one side are restored to their original state through the mutual cooperation of the sliding mechanism and the cleaning mechanism, thereby maintaining the original ecological environment of the sampling area to the maximum extent, avoiding excessive ecological damage to the sample collection area, and being conducive to the self-repair and stability of the ecosystem. The present invention cooperates with the sliding rod and the inner surface of the second inclined groove. When the fixing mechanism pushes the sliding rod to move, the driving sliding block slides to the right, thereby causing the rectangular plate and the vertical brush and the circular brush thereon to move to the right and rotate. Before preparing for sampling, the branches, weeds and loose soil above the target soil collection area can be quickly and effectively cleaned, providing good conditions for subsequent soil collection work. After the sampling is completed, the loose soil and branches and weeds can be covered again above the collection area to avoid excessive damage to the ecology of the collection area. Through the cooperation of the limiting cylinder and the circular push plate, the spiral descent of the sampling cylinder is realized, which can not only accurately collect soil samples, but also will not cause excessive damage to the original soil in the non-collection area. At the same time, the spiral blades can also cut a gap in the soil in the non-collection area during the descent process, which is conducive to the subsequent filling and integration of guest soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of another operating state structure of the present invention as a whole; Figure 3 It is a schematic diagram of the local structure of the present invention; Figure 4 This is a schematic diagram of the structure of the sliding mechanism cooperating with the cleaning mechanism of the present invention; Figure 5 It is a schematic diagram of the cleaning mechanism structure of the present invention; Figure 6 It is a schematic diagram of the fixing mechanism structure of the present invention; Figure 7 It is a schematic diagram of the structure of the limiting mechanism of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the limiting mechanism of the present invention; Fig. 9 For the present invention Figure 8 The enlarged structural diagram at A in the middle; Fig.10 This is a schematic diagram of the structure of the pushing mechanism cooperating with the sampling mechanism of the present invention.

[0018] In the figure: 1, cart; 11, guide rail 1; 12, limit ring 1; 13, counterweight; 14, guide rail 2; 15, limit ring 2; 2, fixing mechanism; 21, hydraulic cylinder 1; 22, fixing plate; 221, through hole; 23, slide bar; 24, fixing ring; 241, inclined groove 1; 3, pushing mechanism; 31, hydraulic cylinder 2; 32, circular ring; 321, rectangular groove 1; 33, fixing cylinder; 34, circular push plate; 341, circular protrusion; 4, limit mechanism; 41 , limiting cylinder; 411, arc groove; 412, rectangular groove two; 42, limiting block; 421, rectangular block; 422, inclined slider; 43, spring; 5, sliding mechanism; 51, rectangular slider; 511, inclined groove two; 512, rectangular groove three; 52, Z-shaped rod; 6, cleaning mechanism; 61, rack; 62, vertical brush; 63, gear; 64, roller; 65, rectangular plate; 66, round brush; 7, sampling mechanism; 71, sampling cylinder; 72, spiral blade. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] Embodiment 1, as Figure 1 and Figure 2 As shown, a sampling device for forestry ecological protection includes a cart 1, a fixing mechanism 2 is slidably connected to the middle part of the upper end of the cart 1, a limiting mechanism 4 is slidably connected to the upper part of the fixing mechanism 2, a pushing mechanism 3 is arranged on the upper part of the limiting mechanism 4, a sampling mechanism 7 is fixedly connected to the lower part of the pushing mechanism 3, a sliding mechanism 5 is slidably connected to the lower part of the fixing mechanism 2 located on the left side in the upper end of the cart 1, and a cleaning mechanism 6 is slidably connected to the front side of the upper end of the cart 1.

[0021] In the process of forestry ecological protection, it is necessary to sample forest soil from time to time to analyze the nutrients, pH, soil microorganisms, etc. in the soil to determine the state of the soil in the sampling area.

[0022] When it is necessary to sample the soil in the forest, the cart 1 is pushed to the determined sampling location, and then the fixed mechanism 2 cooperates with the sliding mechanism 5 and the cleaning mechanism 6 to clean the branches, weeds, etc. in the sampling target area, which helps to ensure the accuracy of the collected soil samples. Then, the pushing mechanism 3 cooperates with the limiting mechanism 4 to first lower the entire sampling mechanism 7 to close to the ground, and then the pushing mechanism 3 cooperates with the limiting mechanism 4 and the fixing mechanism 2 to enable the sampling mechanism 7 to achieve rotation and descending sampling during the sampling process.

[0023] Similarly, after the sampling is completed, the pushing mechanism 3 cooperates with the limiting mechanism 4 to make the sampling mechanism 7 rotate and rise to reset. Then the operator fills the guest soil with similar properties to the original soil into the circular pit left after the sampling mechanism 7 collects the sample. During the process of the fixing mechanism 2 driving the pushing mechanism 3 and the limiting mechanism 4 to reset, the sliding mechanism 5 and the cleaning mechanism 6 cooperate with each other to restore the branches, weeds and loose soil on one side to their original state, thereby avoiding excessive ecological damage to the soil sample collection area.

[0024] During the operation of this embodiment, through the cooperation of the fixing mechanism 2, the sliding mechanism 5 and the cleaning mechanism 6, the sampling target area can be thoroughly and carefully cleaned before sampling, and branches, weeds and other debris can be removed, reducing the possibility of these foreign impurities mixing into the soil sample. At the same time, the coordinated work of the pushing mechanism 3, the limiting mechanism 4 and the fixing mechanism 2 can realize the precise positioning and stable descent of the sampling mechanism 7, ensuring that the sampling tube can accurately reach the predetermined sampling depth, avoiding the deviation of the sampling position, and further improving the accuracy of sampling. At the same time, the sampling mechanism 7 can more evenly collect soil at different positions during the rotating descent sampling process, making the sample more representative. After the sampling is completed, the branches and weeds and floating soil on one side are restored to their original state through the mutual cooperation of the sliding mechanism 5 and the cleaning mechanism 6, which maximizes the maintenance of the original ecological environment of the sampling area, avoids excessive ecological damage to the sample collection area, and is conducive to the self-repair and stability of the ecosystem.

[0025] Embodiment 2: Based on embodiment 1, this embodiment can quickly and effectively clean the area above the soil collection target area before sampling. After sampling, the loose soil, branches, weeds, etc. can be covered again above the collection area to avoid excessive damage to the ecology of the collection area.

[0026] See also Figure 3 A guide rail 11 is fixedly connected to the rear side of the upper end of the cart 1, a counterweight 13 is fixedly connected to the rear side of the middle part of the upper end of the cart 1, a limiting ring 12 is fixedly connected to the middle part of the upper end of the cart 1, a guide rail 2 14 is fixedly connected to the right side of the upper end of the cart 1, and a limiting ring 2 15 is fixedly connected to the front side of the upper end of the cart 1.

[0027] Specifically, the center of gravity of the overall structure is adjusted by the cooperation of the counterweight block 13 to avoid the center of gravity shifting and being unstable during the operation of the device. Similarly, the sliding mechanism 5 is limited by the cooperation of the limiting ring 12, the guide rail 11 and the limiting ring 2 15, and the guide rail 2 14 cooperates with the fixing mechanism 2 to avoid the position shifting during the forward movement.

[0028] See also Figure 6The fixing mechanism 2 includes a hydraulic cylinder 21 fixedly connected to the upper end of the counterweight block 13, the output end of the hydraulic cylinder 21 is fixedly connected to a fixing plate 22, the rear side of the lower end of the fixing plate 22 is fixedly connected to a sliding rod 23, the middle part of the upper end of the fixing plate 22 is fixedly connected to a fixing ring 24, the inner surface of the fixing ring 24 is provided with two inclined grooves 241 in a circular array, the right end of the fixing plate 22 is slidably connected to the outer surface of the guide rail 14, a through hole 221 is provided at the upper end of the fixing plate 22 at the lower end of the fixing ring 24, and the outer surface of the sliding rod 23 is slidably connected to the inner surface of the limit ring 12.

[0029] Specifically, when the cart 1 is pushed to a suitable soil collection area in the forest, the hydraulic cylinder 21 is activated, and then the output end of the hydraulic cylinder 21 pushes the fixed plate 22 forward, causing the fixed plate 22 to slide forward along the outer surface of the guide rail 14. In the process of the fixed plate 22 being pushed forward, the slide bar 23 and the fixed ring 24 as well as the pushing mechanism 3, the limiting mechanism 4 and the sampling mechanism 7 at the upper end of the fixed plate 22 will be driven to move forward at the same time. At this time, the outer surface of the slide bar 23 slides forward along the inner surface of the limiting ring 12.

[0030] See also Figure 4-5 The sliding mechanism 5 includes a rectangular slider 51, an upper end of the rectangular slider 51 is provided with an inclined groove 2 511, a middle portion of the rear end of the rectangular slider 51 is provided with a rectangular groove 3 512, an inner surface of the rectangular groove 3 512 is slidably connected to an outer surface of the front end of the guide rail 11, a Z-shaped rod 52 is fixedly connected to the left side of the front end of the rectangular slider 51, the front side of the outer surface of the Z-shaped rod 52 is slidably connected to the inner surface of the limit ring 2 15, and the lower middle portion of the outer surface of the slide bar 23 is slidably connected to the inner surface of the inclined groove 2 511.

[0031] Furthermore, when the slide bar 23 is driven by the fixed plate 22 to move forward, the inner surface of the limit ring 12 cooperates with the inner surface of the inclined groove 2 511, so that the slide bar 23 slides forward and drives the rectangular slide block 51 to drive the rectangular groove 3 512 to slide to the right along the outer surface of the guide rail 1 11, and then the rectangular slide block 51 slides to the right and drives the Z-shaped rod 52 to slide to the right, and then the front side of the outer surface of the Z-shaped rod 52 slides to the right along the inner surface of the limit ring 2 15.

[0032] See also Figure 4-5 The cleaning mechanism 6 includes a rectangular plate 65 that is slidably connected to the front side of the upper end of the cart 1, the rear end of the rectangular plate 65 is fixedly connected to the right side of the front end of the Z-shaped rod 52, and the upper end of the rectangular plate 65 is rotatably connected to a plurality of rollers 64, and the upper parts of the outer surfaces of the plurality of rollers 64 are fixedly connected to gears 63, and the plurality of gears 63 are meshed with each other. The lower ends of the plurality of rollers 64 are fixedly connected to round brushes 66, and the left and right ends of the rectangular plate 65 are fixedly connected to vertical brushes 62, and a rack 61 is meshed with the outer surface of the gear 63 near the Z-shaped rod 52, and the lower end of the rack 61 is fixedly connected to the front side of the upper end of the cart 1.

[0033] Furthermore, when the Z-shaped rod 52 is driven by the rectangular slider 51 to move to the right, the Z-shaped rod 52 will drive the rectangular plate 65 to slide to the right along the upper end of the cart 1, and then drive the two vertical brushes 62 to move to the right at the same time during the sliding of the rectangular plate 65. At this time, the vertical brush 62 located on the right side of the rectangular plate 65 will uniformly push the branches and weeds above the target area to the right; Furthermore, when the rectangular plate 65 is driven to move to the right, the gears 63, the rollers 64 and the round brush 66 are driven to move to the right at the same time; Then, a gear 63 close to the Z-shaped rod 52 cooperates with the front end of the rack 61, so that the gears 63 are driven to move to the right, and the gears 63 mesh with each other and rotate, thereby driving the rollers 64 fixedly connected to the gears 63 to rotate and connect, and then the round brushes 66 are driven to move to the right and continuously rotate, so that the loose soil above the target collection area can be brushed up, and then the loose soil can be pushed to the right side of the front end of the cart 1 in cooperation with the vertical brush 62 located on the left side of the rectangular plate 65.

[0034] Furthermore, when the output end of the hydraulic cylinder 21 pushes the fixed plate 22 to drive the slide rod 23 to move to the front side of the inner surface of the inclined groove 511 and the front side of the inner surface of the limiting ring 12, the rectangular slider 51 drives the Z-shaped rod 52 to move to the front side of the outer surface of the Z-shaped rod 52 and is tightly attached to the right side of the inner surface of the limiting ring 15. At this time, the rectangular plate 65 drives a number of gears 63, a rotating roller 64 and a round brush 66 to be moved to the right side of the front end of the rack 61, and then the operation of the hydraulic cylinder 21 is suspended.

[0035] At this time, the plurality of round brushes 66 cooperate with the two vertical brushes 62 to clean the soil collection target area.

[0036] See also Fig.10 The pushing mechanism 3 includes a hydraulic cylinder 2 31 fixedly connected to the upper end of the fixed plate 22, the output end of the hydraulic cylinder 2 31 is rotatably connected to a circular push plate 34, the upper end of the circular push plate 34 is fixedly connected to a circular ring 32, the lower middle part of the circular push plate 34 is fixedly connected to a fixed cylinder 33, the outer surface of the circular ring 32 is provided with two rectangular grooves 321 in an annular array, and the outer surface of the circular push plate 34 is provided with a plurality of circular protrusions 341 in an annular array.

[0037] After the target area for soil collection is cleaned, the hydraulic cylinder 2 31 is activated, so that the output end of the hydraulic cylinder 2 31 pushes the upper end of the circular push plate 34 downward, thereby driving the circular push plate 34, the fixing cylinder 33 and the circular ring 32 to move downward simultaneously; Furthermore, when the circular push plate 34 is driven by the output end of the hydraulic cylinder 2 31 to move downward, a plurality of circular protrusions 341 are driven by the circular push plate 34 to move downward at the same time.

[0038] See also Figure 7-9The limiting mechanism 4 includes a limiting cylinder 41 that is slidably connected to the inner surface of the through hole 221. The upper end of the limiting cylinder 41 is rotatably connected to two limiting blocks 42 in a circular array. The two limiting blocks 42 on the side close to the limiting cylinder 41 are fixedly connected to a plurality of springs 43. The ends of the plurality of springs 43 that are away from the limiting blocks 42 are fixedly connected to the limiting cylinder 41.

[0039] Furthermore, when the output end of the hydraulic cylinder 2 31 pushes the circular push plate 34 to descend, the two limit blocks 42 and a plurality of springs 43 cooperate to lock the two limit blocks 42 with the outer surface of the ring 32. Thus, during the descent of the ring 32 and the circular push plate 34, the limit cylinder 41 is driven to descend at the same time through the cooperation of the two limit blocks 42.

[0040] See also Figure 8-9 A plurality of arc grooves 411 are provided in a circular array on the inner surface of the limit cylinder 41, and two rectangular grooves 412 are provided in a circular array on the upper surface of the outer surface of the limit cylinder 41. The upper ends of the two limit blocks 42 close to the limit cylinder 41 are fixedly connected with rectangular blocks 421, and the lower ends of the two limit blocks 42 are fixedly connected with inclined sliding blocks 422. The ends of the plurality of springs 43 on the same side away from the limit blocks 42 are fixedly connected with the inner surface of the rectangular groove 412. The outer surfaces of the plurality of round protrusions 341 are respectively slidably connected with the inner surfaces of the adapted arc grooves 411, and the inner surfaces of the two rectangular grooves 321 are respectively slidably connected with the outer surfaces of the adapted rectangular blocks 421.

[0041] Specifically, when the hydraulic cylinder 2 31 is not activated, the plurality of springs 43 on the same side cooperate to rotate the limit block 42 toward the side close to the ring 32, and then the operator presses the rectangular block 421 to move the rectangular block 421 inward along the inner surface of the rectangular groove 1 321, and at this time, the plurality of springs 43 on the same side are stretched; Then, the circular push plate 34 is pushed downward at the output end of the hydraulic cylinder 2 31 to drive the circular ring 32 to descend. At this time, the rectangular block 421 cooperates with the rectangular groove 1 321 to make the two limit blocks 42 move downward during the descending process of the circular ring 32. At the same time, the two limit blocks 42 cooperate to drive the limit cylinder 41 downward synchronously. At this time, the outer surface of the limit cylinder 41 slides downward along the inner surface of the fixing ring 24 and the inner surface of the through hole 221.

[0042] Furthermore, when the limiting cylinder 41 and the two limiting blocks 42 are pushed to the point where the lower end of the inclined slider 422 begins to contact the upper end of the fixing ring 24, the limiting block 42 is pushed down further, and then the outer surfaces of the two inclined sliders 422 slide downward along the inner surface of the adapted inclined groove 1 241. In the process of sliding downward along the inner surface of the inclined groove 1 241, the inclined slider 422 moves closer to the inner surface of the arc groove 411 along the inner surface of the inclined groove 1 241 through the setting of the two inclined grooves 1 241, and then drives the lower part of the limiting block 42 to rotate toward the side close to the limiting cylinder 41, thereby squeezing the plurality of springs 43 on the same side. Similarly, when the lower part of the limit block 42 is driven by the inclined sliding block 422 and the inclined groove 241 to rotate toward the side close to the limit cylinder 41, the rectangular block 421 will be driven to slide outward along the inner surface of the rectangular groove 321. When the upper end of the limit cylinder 41 drops to be flush with the upper end of the fixed plate 22, the limit block 42 is driven by the inclined sliding block 422 to rotate until the rectangular block 421 is completely separated from the inner surface of the rectangular groove 321, and the ring 32 is unlocked from the two limit blocks 42. At this time, the lower end of the limit cylinder 41 is flush with the ground.

[0043] Then, the output end of the hydraulic cylinder 31 continues to push the circular push plate 34 downward. At this time, the limiting cylinder 41 no longer moves. The circular push plate 34 descends, driving the circular ring 32 and the fixing cylinder 33 to descend at the same time. At the same time, a number of circular protrusions 341 cooperate with the inner surface of the arc groove 411 to make the circular push plate 34 rotate during the descent, that is, spiral descent.

[0044] See also Fig.10 The sampling mechanism 7 includes a sampling cylinder 71 threadedly connected to the inner surface of the fixing cylinder 33 , and a spiral blade 72 is fixedly connected to the outer surface of the sampling cylinder 71 .

[0045] Furthermore, when the fixed cylinder 33 is driven down by the circular push plate 34, the sampling cylinder 71 is driven down at the same time; Then, when the lower end of the limiting cylinder 41 is flush with the ground, the lower end of the sampling cylinder 71 is flush with the ground, and then the circular push plate 34 will drive the sampling cylinder 71 to rotate and descend through the circular protrusion 341 and the arc groove 411, so as to facilitate the sampling cylinder 71 to collect the soil without causing excessive vibration damage to the original soil in the non-collection area. At the same time, during the rotation and descent of the sampling cylinder 71, the spiral blade 72 will be driven to rotate and descend in the same direction, and then the side of the spiral blade 72 away from the sampling cylinder 71 will cut a gap in the soil in the non-collection area during the descent.

[0046] Furthermore, after the sampling cylinder 71 descends to the deepest point, the output end of the hydraulic cylinder 2 31 moves upward, and then the circular push plate 34 drives the fixed cylinder 33, the sampling cylinder 71 and the spiral blade 72 to return to the original distance. Subsequently, when the circular push plate 34, the ring 32 and the sampling cylinder 71 rise until the inner surface of the rectangular groove 1 321 is flush with the outer surface of the rectangular block 421, the operator releases the restriction of the inner surface of the inclined groove 1 241 on the inclined sliding block 422 and the limit block 42, so that the rectangular block 421 continues to be tightly attached to the inner surface of the rectangular groove 1 321. Then, the output end of the hydraulic cylinder 2 31 drives the circular push plate 34 and the sampling cylinder 71 to rise, which will drive the limit cylinder 41 and the two limit blocks 42 to move upward at the same time.

[0047] Then, the operator fills foreign soil with properties similar to the original soil into the circular pit after sampling in the sampling tube 71, and the foreign soil is integrated with the original soil as quickly as possible through the gaps created by the spiral blades 72.

[0048] Then, by stimulating the hydraulic cylinder 21, the output end of the hydraulic cylinder 21 drives the fixed plate 22, the slide rod 23, the integral limit cylinder 41, the circular push plate 34 and other structures to reset. When the slide rod 23 is driven to reset by the fixed plate 22, the inner surface of the limit ring 12 cooperates with the inner surface of the inclined groove 2 511 to make the rectangular slide block 51 move to the left along the guide rail 11, thereby driving the Z-shaped rod 52, the rectangular plate 65 and the two vertical brushes 62 to move to the left at the same time. Then, when the two vertical brushes 62 and several circular brushes 66 move to the left, the floating soil, branches and weeds are covered again above the collection area to avoid damage to the ecology of the collection area.

[0049] Therefore, in this solution, the slide bar 23 cooperates with the inner surface of the second inclined groove 511. When the fixing mechanism 2 pushes the slide bar 23 to move, the sliding block 51 is driven to slide to the right, thereby causing the rectangular plate 65 and the vertical brush 62 and the circular brush 66 thereon to move to the right and rotate. Before preparing for sampling, the branches, weeds and loose soil above the soil collection target area can be quickly and effectively cleaned, providing good conditions for subsequent soil collection work. After the sampling is completed, the loose soil and branches and weeds can be covered again above the collection area to avoid excessive damage to the ecology of the collection area. Through the cooperation of the limiting cylinder 41 and the circular push plate 34, the spiral descent of the sampling cylinder 71 is realized, which can not only accurately collect soil samples, but also will not cause excessive damage to the original soil in the non-collection area. At the same time, the spiral blade 72 can also cut a gap in the soil in the non-collection area during the descent process, which is conducive to the subsequent filling and integration of foreign soil.

[0050] It should be noted that the specific installation method, circuit connection method and control method of the hydraulic cylinder 1 21 and the hydraulic cylinder 2 31 used in the present invention are all conventional designs and will not be elaborated in detail in the present invention.

[0051] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A sampling device for forestry ecological protection, comprising a cart (1), characterized in that: The middle part of the upper end of the cart (1) is slidably connected to a fixing mechanism (2), the upper part of the fixing mechanism (2) is slidably connected to a limiting mechanism (4), the upper part of the limiting mechanism (4) is provided with a pushing mechanism (3), the lower part of the pushing mechanism (3) is fixedly connected to a sampling mechanism (7), the lower part of the fixing mechanism (2) located on the left side of the upper end of the cart (1) is slidably connected to a sliding mechanism (5), and the front side of the upper end of the cart (1) is slidably connected to a cleaning mechanism (6).

2. A sampling device for forestry ecological protection according to claim 1, characterized in that: The rear side of the upper end of the cart (1) is fixedly connected to a guide rail 1 (11), the rear side of the middle part of the upper end of the cart (1) is fixedly connected to a counterweight block (13), the middle part of the upper end of the cart (1) is fixedly connected to a limit ring 1 (12), the right side of the upper end of the cart (1) is fixedly connected to a guide rail 2 (14), and the front side of the upper end of the cart (1) is fixedly connected to a limit ring 2 (15).

3. A sampling device for forestry ecological protection according to claim 2, characterized in that: The sliding mechanism (5) comprises a rectangular slider (51), the upper end of the rectangular slider (51) is provided with a second inclined groove (511), the middle portion of the rear end of the rectangular slider (51) is provided with a third rectangular groove (512), the inner surface of the third rectangular groove (512) is slidably connected to the outer surface of the front end of the guide rail (11), the left side of the front end of the rectangular slider (51) is fixedly connected to a Z-shaped rod (52), and the front side of the outer surface of the Z-shaped rod (52) is slidably connected to the inner surface of the second limiting ring (15).

4. A sampling device for forestry ecological protection according to claim 3, characterized in that: The cleaning mechanism (6) comprises a rectangular plate (65) slidably connected to the front side of the upper end of the cart (1); the rear end of the rectangular plate (65) is fixedly connected to the right side of the front end of the Z-shaped rod (52); the upper end of the rectangular plate (65) is rotatably connected to a plurality of rollers (64); the upper parts of the outer surfaces of the plurality of rollers (64) are fixedly connected to gears (63); the plurality of gears (63) are meshed with each other; and the lower ends of the plurality of rollers (64) are fixedly connected to round brushes (66).

5. A sampling device for forestry ecological protection according to claim 4, characterized in that: The left and right ends of the rectangular plate (65) are both fixedly connected to vertical brushes (62), and the outer surface of the gear (63) near the Z-shaped rod (52) is meshed with a rack (61), and the lower end of the rack (61) is fixedly connected to the front side of the upper end of the cart (1).

6. A sampling device for forestry ecological protection according to claim 2, characterized in that: The fixing mechanism (2) comprises a hydraulic cylinder (21) fixedly connected to the upper end of the counterweight (13); the output end of the hydraulic cylinder (21) is fixedly connected to a fixing plate (22); the rear side of the lower end of the fixing plate (22) is fixedly connected to a sliding rod (23); the middle part of the upper end of the fixing plate (22) is fixedly connected to a fixing ring (24); the inner surface of the fixing ring (24) is provided with two inclined grooves (241) in a circular array; the right end of the fixing plate (22) is slidably connected to the outer surface of the guide rail (14); the upper end of the fixing plate (22) is provided with a through hole (221) at the lower end of the fixing ring (24); the outer surface of the sliding rod (23) is slidably connected to the inner surface of the limiting ring (12); and the lower middle part of the outer surface of the sliding rod (23) is slidably connected to the inner surface of the inclined groove (511).

7. A sampling device for forestry ecological protection according to claim 6, characterized in that: The limiting mechanism (4) comprises a limiting cylinder (41) slidably connected to the inner surface of the through hole (221); the upper end of the limiting cylinder (41) is rotatably connected to two limiting blocks (42) in an annular array; the two limiting blocks (42) on the side close to the limiting cylinder (41) are both fixedly connected to a plurality of springs (43); and the ends of the plurality of springs (43) away from the limiting blocks (42) are fixedly connected to the limiting cylinder (41).

8. A sampling device for forestry ecological protection according to claim 7, characterized in that: The inner surface of the limiting cylinder (41) is provided with a plurality of arc grooves (411) in a circular array, and the upper outer surface of the limiting cylinder (41) is provided with two rectangular grooves (412) in a circular array. The upper ends of the two limiting blocks (42) close to the limiting cylinder (41) are fixedly connected to rectangular blocks (421), and the lower ends of the two limiting blocks (42) are fixedly connected to inclined sliding blocks (422). The ends of the plurality of springs (43) on the same side away from the limiting blocks (42) are fixedly connected to the inner surface of the rectangular groove (412).

9. A sampling device for forestry ecological protection according to claim 8, characterized in that: The pushing mechanism (3) comprises a hydraulic cylinder 2 (31) fixedly connected to the upper end of the fixed plate (22); the output end of the hydraulic cylinder 2 (31) is rotatably connected to a circular push plate (34); the upper end of the circular push plate (34) is fixedly connected to a circular ring (32); the middle part of the lower end of the circular push plate (34) is fixedly connected to a fixed cylinder (33); the outer surface of the circular ring (32) is provided with two rectangular grooves 1 (321) in an annular array; the outer surface of the circular push plate (34) is provided with a plurality of circular protrusions (341); the outer surfaces of the plurality of circular protrusions (341) are respectively slidably connected to the inner surfaces of the matching arc grooves (411); the inner surfaces of the two rectangular grooves 1 (321) are respectively slidably connected to the outer surfaces of the matching rectangular blocks (421).

10. A sampling device for forestry ecological protection according to claim 9, characterized in that: The sampling mechanism (7) comprises a sampling cylinder (71) threadedly connected to the inner surface of the fixing cylinder (33), and a spiral blade (72) is fixedly connected to the outer surface of the sampling cylinder (71).

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