A soil sampling device for environmental soil detection

Abstract

The present invention discloses a soil sampling device for environmental soil detection, which includes a working plate. A servo electric telescopic rod is installed at the bottom of the working plate, and a chassis is installed at the bottom end of the servo electric telescopic rod. A driving motor is installed on the top of the working plate, and the output end of the driving motor is fixedly connected to an upper mounting column. A sliding groove is provided on the outer wall of one side of the upper mounting column, and an upper flange is installed at the bottom end of the upper mounting column. An inner fixing plate is installed on the inner wall of one side of the upper mounting column, and an inner sleeve is installed at the end of the inner fixing plate; a slot is provided on the outer surface of one side of the lower mounting column. This soil sampling device for environmental soil detection uses a method of digging soil to collect soil, filters out the stones mixed in the soil during sampling, and there is no need to screen the stones before detection. The process is relatively simple, can detect soils at different depths according to needs, is convenient to take out the soil, and has high accuracy in collecting soils at different depths.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection, and specifically provides a soil sampling device for environmental soil detection. Background Art

[0002] With the popularization of scientific planting techniques, it has become increasingly important to collect various environmental parameters of farmland in agricultural planting. Among them, parameters such as soil composition and structure are also very important reference parameters for selecting crop varieties and planting methods. However, there is a difficult problem in many existing sampling devices for soil sampling and detection, that is, the devices for multi-depth soil sampling often cannot balance the convenience of sampling and the requirement of keeping the soil intact during the sampling process. When sampling soil, if a device can collect soil samples at multiple depths through a single drill hole, generally, soil samples are obtained by scraping or sucking the surrounding soil from the side after drilling. In this way, the soil structure will be actually damaged during the drilling process and the process of scraping and sucking the soil, resulting in the mixing of upper and lower layer soils or the dispersion of the same layer soil, and the soil structure may also be severely compressed. Existing sampling tools that can reduce soil structure changes basically insert a sampling and excavation structure from the surrounding of the sampling area, and then take out the soil sample by closing from the bottom. However, it is difficult to obtain soil samples at deeper depths by this method. If deeper soil samples need to be obtained, the upper layer of soil needs to be removed first. The existing sampling devices of this type are very inconvenient for collecting deep soil samples, time-consuming and laborious, not to mention the collection of multi-depth soil samples.

[0003] Deficiencies of the prior art: Most of the existing sampling devices drive a rotating rod to rotate through a motor for sampling. After sampling, stones will be mixed in the soil, which not only easily damages the machine, but also requires screening of the stones before detection, otherwise it will affect the detection accuracy, and the process is rather cumbersome;

[0004] Also, because the existing collection devices are all long strip-shaped columns after collection, when collecting samples of soils at different depths, it is impossible to accurately collect the soil at a certain depth layer, and the accuracy is not high. Summary of the Invention

[0005] The purpose of the present invention is to provide a soil sampling device for environmental soil detection to solve the problems raised in the above background art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a soil sampling device for environmental soil detection, comprising a working plate, a servo electric telescopic rod is installed at the bottom of the working plate, a chassis is installed at the bottom end of the servo electric telescopic rod, a driving motor is installed at the top of the working plate, an output end of the driving motor is fixedly connected to an upper mounting column, a sliding groove is opened on an outer wall of one side of the upper mounting column, an upper flange is installed at the bottom end of the upper mounting column, an inner fixing plate is installed on the inner wall of one side of the upper mounting column, and a built-in sleeve is installed at the end of the inner fixing plate;

[0007] A lower flange is installed at the bottom of the upper flange, a lower mounting column is installed at the bottom of the lower flange, a drill bit is installed at the bottom end of the lower mounting column, a groove is opened on the outer surface of one side of the lower mounting column, and an outer sleeve for closing the groove is sleeved on the outer surface of the lower mounting column;

[0008] The inner wall of the built-in sleeve is provided with an inner movable rod for pushing and pulling the soil box assembly, and a limiting plate for limiting the soil box assembly is installed at the bottom end of the inner movable rod;

[0009] A soil box assembly for storing soil is installed at the front end of the limiting plate, and a soil shoveling assembly for collecting soil is installed on the outer surface of one side of the soil box assembly. The inner movable rod includes a fixed rod, and the fixed rod is arranged at the bottom end of the inner movable rod. A movable box assembly is arranged at the bottom end of the fixed rod, and the movable box assembly includes a bottom box, and the bottom box is arranged at the bottom of the movable box assembly. A locking assembly is installed at the bottom of the bottom box.

[0010] Preferably, the inner movable rod includes a pin shaft 1, the pin shaft 1 is arranged at the top end of the inner movable rod, the outer surface of the pin shaft 1 is sleeved with a mounting plate, the inner movable rod is slidingly connected to the inner wall of the built-in sleeve, the mounting plate is arranged on the inner side of the sliding groove, and the mounting plate is rotatably connected to the inner movable rod through the pin shaft 1.

[0011] Preferably, the limiting plate includes a second pin shaft, the second pin shaft is arranged at the front end of the limiting plate, the outer surface of the second pin shaft is sleeved on the rotating plate, the rotating plate is rotatably connected to the limiting plate through the second pin shaft, the soil loading box assembly is fixedly connected to the bottom end of the rotating plate, the number of the soil loading box assemblies is set to two groups, and springs are installed on the left and right sides of the two groups of soil loading box assemblies.

[0012] Preferably, the outer surface of the upper part of the lower mounting column is installed with an external thread, and the inner wall of the top of the outer sleeve is installed with an internal thread. The outer sleeve is sleeved on the outer surface of the lower mounting column and is threadedly connected to the external thread installed on the outer surface of the lower mounting column through the internal thread. The outer sleeve is arranged above the slot.

[0013] Preferably, the soil loading box assembly includes a chain plate disposed on one side of the bottom of the soil loading box assembly. One end of the chain plate is provided with a cover plate, and a threaded plate is installed at the bottom of the cover plate. A fixing screw is provided on the inner wall of the threaded plate. The cover plate is rotatably connected to the bottom of the soil loading box assembly through the chain plate, and the fixing screw is threadedly connected to the bottom of the soil loading box assembly and the threaded plate.

[0014] Preferably, the soil digging assembly includes a soil digging box with arc-shaped surfaces provided at the top and bottom thereof. An opening is formed on one side of the soil digging box. A first filter stone plate and a second filter stone plate are installed on the inner walls of the bottom and top of the soil digging box close to the opening, and the first filter stone plate and the second filter stone plate are arranged in a V-shaped pattern.

[0015] Preferably, the number of the first filter stone plate and the second filter stone plate is set to several groups, and the gap between several groups of the first filter stone plate and the second filter stone plate is set to 2 mm. The length and width of the outer side of the soil digging assembly are equal to the length and width of the inner side of the grooving.

[0016] Preferably, a first rotating shaft is installed at the front end of the bottom box. A rotating arm is installed at one end of the first rotating shaft. A limiting seat is sleeved on the outer surface of the rotating arm, and the limiting seat is installed inside the soil loading box assembly. A first gear is sleeved on the outer surface of the first rotating shaft. A third gear is meshed with one side of the first gear, and a second rotating shaft is sleeved inside the third gear. The second rotating shaft is installed at the front end of the bottom box.

[0017] Preferably, the locking assembly includes a telescopic column installed on the inner wall of the top of the bottom box. A rack is installed at the bottom end of the telescopic column. A clamping plate is installed at the bottom end of the rack. A third rotating shaft is installed at the front end of the bottom box. A driving gear is sleeved on the outer surface of the third rotating shaft. A connecting plate is installed on one side of the third rotating shaft. A steel ball is installed at the end of the connecting plate. A stop rod is installed at the front end of the bottom box.

[0018] Preferably, the driving gear is meshed with the rack. The driving gear is rotatably connected to the front end of the bottom box through the third rotating shaft, and the rack is vertically movable through the telescopic column on the inner wall of the top of the bottom box.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. The method of digging soil is adopted to collect fine-grained and relatively fine soil, and stones mixed in the soil are filtered out during sampling, so there is no need to screen the stones before detection, the process is relatively simple, and the detection efficiency and accuracy of the soil are improved;

[0021] 2. Low cost and strong practicability. It can accurately and horizontally collect soils at different depths according to needs, facilitate the extraction of soils, and has high accuracy in collecting soils at different depths. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the sampling device of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the upper mounting column and the lower mounting column of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the lower mounting column and the outer sleeve of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the upper mounting column and the inner movable rod of the present invention;

[0026] Figure 5 It is a bottom view structural diagram of the limit plate and soil loading box assembly of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the limit plate and soil box assembly of the present invention;

[0028] Figure 7 For the present invention Figure 6 A is an enlarged schematic diagram;

[0029] Figure 8 It is an enlarged schematic diagram of b in Figure A of the present invention;

[0030] Figure 9 It is a schematic diagram of the structure of the soil-cutting component of the present invention.

[0031] In the figure: 1, working plate; 10, servo electric telescopic rod; 11, chassis; 12, driving motor; 2, upper mounting column; 20, sliding groove; 21, upper flange; 22, inner fixing plate; 23, built-in sleeve; 3, lower mounting column; 30, external thread; 31, lower flange; 32, drill bit; 33, slot; 4, outer sleeve; 40, internal thread; 5, inner movable rod; 50, pin shaft 1; 51, mounting plate; 6, limit plate; 60, pin shaft 2; 61, fixing rod; 62, rotating plate; 7, soil box assembly; 70, chain plate; 71, cover plate; 72 , threaded plate; 721, fixing screw; 8, soil-planing assembly; 80, arc surface; 81, opening; 82, filter plate one; 83, filter plate two; 84, soil-planing box; 9, movable box assembly; 90, spring; 91, bottom box; 92, shaft one; 93, rotating arm; 94, limit seat; 95, gear one; 96, shaft two; 97, gear three; 108, locking assembly; 100, telescopic column; 101, rack; 102, clamping plate; 103, driving gear; 104, shaft three; 105, connecting plate; 106, steel ball; 107, stop rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figures 1-9 The present invention provides a technical solution: a soil sampling device for environmental soil detection, comprising a working plate 1, a servo electric telescopic rod 10 is installed at the bottom of the working plate 1, a chassis 11 is installed at the bottom end of the servo electric telescopic rod 10, a driving motor 12 is installed at the top of the working plate 1, the output end of the driving motor 12 is fixedly connected to an upper mounting column 2, a sliding groove 20 is opened on the outer wall of one side of the upper mounting column 2, an upper flange 21 is installed at the bottom end of the upper mounting column 2, an inner fixing plate 22 is installed on the inner wall of one side of the upper mounting column 2, and a built-in sleeve 23 is installed at the end of the inner fixing plate 22;

[0034] A lower flange 31 is installed at the bottom of the upper flange 21, a lower mounting column 3 is installed at the bottom of the lower flange 31, a drill bit 32 is installed at the bottom end of the lower mounting column 3, a groove 33 is opened on the outer surface of one side of the lower mounting column 3, and an outer sleeve 4 for closing the groove 33 is sleeved on the outer surface of the lower mounting column 3;

[0035] The inner wall of the built-in sleeve 23 is provided with an inner movable rod 5 for pushing and pulling the soil box assembly 7, and a limiting plate 6 for limiting the soil box assembly 7 is installed at the bottom end of the inner movable rod 5;

[0036] A soil box assembly 7 for storing soil is installed at the front end of the limiting plate 6, and a soil shoveling assembly 8 for collecting soil is installed on the outer surface of one side of the soil box assembly 7. The inner movable rod 5 includes a fixed rod 61, and the fixed rod 61 is arranged at the bottom end of the inner movable rod 5. A movable box assembly 9 is arranged at the bottom end of the fixed rod 61. The movable box assembly 9 includes a bottom box 91, and the bottom box 91 is arranged at the bottom of the movable box assembly 9. A locking assembly 108 is installed at the bottom of the bottom box 91.

[0037] Furthermore, the inner movable rod 5 includes a pin shaft 50, which is arranged at the top of the inner movable rod 5, and the outer surface of the pin shaft 50 is sleeved with a mounting plate 51, the inner movable rod 5 is slidably connected to the inner wall of the built-in sleeve 23, the mounting plate 51 is arranged on the inner side of the sliding groove 20, and the mounting plate 51 is rotatably connected to the inner movable rod 5 through the pin shaft 50, the limiting plate 6 includes a pin shaft 2 60, the pin shaft 2 60 is arranged at the front end of the limiting plate 6, the outer surface of the pin shaft 2 60 is sleeved with a rotating plate 62, and the rotating plate 62 is rotatably connected to the limiting plate 6 through the pin shaft 2 60, the soil loading box assembly 7 is fixedly connected to the bottom end of the rotating plate 62, the number of the soil loading box assemblies 7 is set to two groups, and springs 90 are installed on the left and right sides of the two groups of soil loading box assemblies 7, and the outer surface of the upper part of the lower mounting column 3 is installed with an external thread 30, An internal thread 40 is installed on the inner wall at the top of the outer sleeve 4. The outer sleeve 4 is sleeved on the outer surface of the lower mounting column 3, and is threadedly connected to the external thread 30 installed on the outer surface of the lower mounting column 3 through the internal thread 40. The outer sleeve 4 is arranged above the slot 33. The soil loading box assembly 7 includes a chain plate 70, and the chain plate 70 is arranged on one side of the bottom of the soil loading box assembly 7. A cover plate 71 is installed at one end of the chain plate 70, and a threaded plate 72 is installed at the bottom of the cover plate 71. A fixing screw 721 is provided on the inner wall of the threaded plate 72. The cover plate 71 is rotatably connected to the bottom of the soil loading box assembly 7 through the chain plate 70, and the fixing screw 721 is threadedly connected to the bottom of the soil loading box assembly 7 and the threaded plate 72. The planing assembly 8 includes a planing box 84, and the top and bottom of the planing box 84 are provided with an arc surface 80, and one side of the planing box 84 is provided with an opening The bottom and top of the soil-scraping box 84 are installed with a filter plate 82 and a filter plate 83 on the inner wall close to the opening 81. The filter plates 82 and 83 are arranged in an eight-shaped pattern. The number of the filter plates 82 and 83 is set to a plurality of groups. The gap between the plurality of groups of filter plates 82 and 83 is set to two millimeters. The outer length and width of the soil-scraping component 8 are equal to the inner length and width of the slot 33. A rotating shaft 92 is installed at the front end of the bottom box 91. A rotating arm 93 is installed at one end of the rotating shaft 92. The outer surface of the rotating arm 93 is sleeved with a limited seat 94. The limited seat 94 is installed on the inner side of the soil-loading box component 7. A gear 95 is sleeved on the outer surface of the rotating shaft 92. A gear 97 is meshed and connected to one side of the gear 95. The inner wall of the gear 97 is sleeved with A second rotating shaft 96 is installed at the front end of the bottom box 91. A locking assembly 108 includes a telescopic column 100, which is installed on the top inner wall of the bottom box 91. A rack 101 is installed at the bottom end of the telescopic column 100, and a clamping plate 102 is installed at the bottom end of the rack 101. A third rotating shaft 104 is installed at the front end of the bottom box 91. A driving gear 103 is sleeved on the outer surface of the third rotating shaft 104. A connecting plate 105 is installed on one side of the third rotating shaft 104. A steel ball 106 is installed at the end of the connecting plate 105. A stopper 107 is installed at the front end of the bottom box 91. The driving gear 103 is meshed and connected with the rack 101. The driving gear 103 is rotatably connected to the front end of the bottom box 91 through the third rotating shaft 104. The rack 101 is arranged to move up and down with the top inner wall of the bottom box 91 through the telescopic column 100;

[0038] In real-time use, the staff first places the soil sampling device on the soil to be sampled, places the chassis 11 horizontally to the ground, and first rotates the outer sleeve 4. Since the outer sleeve 4 is threadedly connected to the outer thread 30 of the lower mounting column 3 through the internal thread 40, the outer sleeve 4 moves downward under the rotation of the staff, covering the slot 33 to prevent the soil at other depths from entering the lower mounting column 3 through the slot 33 when the drill bit 32 rotates downward. Then, the servo electric telescopic rod 10 is started to move the drive motor 12 downward, and the drive motor 12 starts to rotate the upper mounting column 2 and the lower mounting column 3, and drives the drill bit 32 to start rotating downward. The drill bit 32 is made of ultra-strong titanium alloy material, which can easily loosen the soil and drill through stones. (Servo electric telescopic rod 10 The rod 10 can accurately control the depth of the drill bit 32 drilling downwards. At this time, the drill bit 32 starts to drill into the soil. When the drill bit 32 drills down to the soil depth that the staff needs to detect (the depth should be deeper than the required depth by the distance between the drill bit 32 and the slot 33, so the distance between the drill bit 32 and the slot 33 is added on the basis of the staff's needs), the soil depth collected by the soil-cutting component 8 is the soil depth required by the staff. At this time, the staff stops the operation of the servo electric telescopic rod 10, and then the staff continues to rotate the outer sleeve 4 in the opposite direction to move the outer sleeve 4 upward. At this time, the slot 33 is exposed, and the staff will install the mounting plate 51 at the top of the movable rod 5 on the inner wall of the built-in sleeve 23 in the upper mounting column 2 through the pin shaft 5 0 is rotated to pull it out of the sliding groove 20. In advance, since the inner movable rod 5 needs to rotate at a high speed, the mounting plate 51 is adjusted in the sliding groove 20. Then, the mounting plate 51 is pressed downward together with the inner movable rod 5 to drive the soil loading box assembly 7 to move downward (the side wall of the inner movable rod 5 is provided with a long groove that is mutually limited by the inner limiting rib of the lower mounting column 3, which is used to limit the moving direction of the inner movable rod 5. It can only move up and down but not rotate. The soil-cutting assembly 8 will pop out of the slot 33 accurately), until the soil-cutting assembly 8 reaches the slot 33. Since the diameter of the soil-cutting assembly 8 is the same as that of the slot 33, the elastic force of the spring 90 rotates the soil-loading box assembly 7 outward along the limiting plate 6 and the pin 60 and pushes it out. The outer soil-cutting assembly 8 is pushed out and enters the slot 3 3, at this time, gear 1 95 and gear 3 97 can rotate under the rotation of the rotating arm 93, and then when the staff starts the driving motor 12 again to rotate the upper mounting column 2 and the lower mounting column 3, the steel ball 106 is thrown upward under the centrifugal force of the high-speed rotation of the upper mounting column 2 and the lower mounting column 3, and rotates around the rotating shaft 3 104 through the steel ball 106, and drives the driving gear 103 to drive the rack 101 downward. At this time, the clamping plate 102 is clamped between the gear 1 95 and the gear 3 97, and the gear 1 95 and the gear 3 97 are locked under the clamping effect of the clamping plate 102, so that the soil-cutting component 8 will not rotate back inward along the limit plate 6 and the pin shaft 2 60 through the soil-loading box component 7 when subjected to the pressure of the soil, so as to form support for the soil-cutting component 8 and the soil-loading box component 7.At this time, the soil digging component 8 rotates under the rotation of the driving motor 12. The soil at this depth will enter the soil digging component 8 through the opening 81 on one side of the soil digging component 8. At the same time, since the filter stone plate one 82 and the filter stone plate two 83 are arranged in a V-shaped pattern, the fine soil enters the soil digging component 8 through the gap between the filter stone plate one 82 and the filter stone plate two 83 at this time, while the larger stones will be intercepted outside. The soil digging component 8 continuously digs the surrounding fine soil into the soil digging component 8 during rotation. The soil enters the soil loading box component 7 through the hole at the fixed part of the soil digging component 8 and the soil loading box component 7 and is stored. Subsequently, the staff stops the operation of the driving motor 12. When the driving motor 12 stops, the steel ball 106 is no longer affected by the centrifugal force and rotates back in the reverse direction around the rotating shaft three 104, driving the rack 101 to rise. At the same time, the telescopic column 100 is compressed, and the clamping plate 102 is driven to lift upward. The clamping plate 102 no longer clamps the gear one 95 and the gear three 97. At this time, the locking component 108 no longer locks the soil loading box component 7. Finally, the staff removes the lower flange 31 and the lower mounting post 3 from the upper flange 21 and places them flat on the ground, and then lifts the soil loading box component 7 and the inner movable rod 5 upward through the mounting plate 51. The soil digging component 8 is lifted upward, and through the arc surface 80 at the top of the soil digging component 8, it slides into the slot 33, and the soil digging component 8 is pulled into the slot 33 and lifted. Subsequently, until the soil loading box component 7 is pulled out, at this time, the staff removes the fixing screw 721 on the threaded plate 72 at the bottom of the cover plate 71 and opens the cover plate 71, and then the just-collected soil can be taken out to complete the soil collection work;

[0039] Finally, after taking out the collected soil, the inner movable rod 5 is inserted into the lower mounting post 3 through the opening at the top of the lower flange 31 and the top of the lower mounting post 3 to reach the starting position (long grooves are provided on the side wall of the inner movable rod 5 for mutual limitation with the limiting ribs on the inner side of the lower mounting post 3 for limitation), to prepare for the next soil collection work.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil sampling device for environmental soil detection, comprising a working plate (1), a servo electric telescopic rod (10) is installed at the bottom of the working plate (1), a chassis (11) is installed at the bottom end of the servo electric telescopic rod (10), and a driving motor (12) is installed at the top of the working plate (1), characterized in that: The output end of the driving motor (12) is fixedly connected to the upper mounting post (2). A sliding groove (20) is formed on the outer wall of one side of the upper mounting post (2). A upper flange (21) is installed at the bottom end of the upper mounting post (2). An inner fixing plate (22) is installed on the inner wall of one side of the upper mounting post (2). An inner sleeve (23) is installed at the end of the inner fixing plate (22); A lower flange (31) is installed at the bottom of the upper flange (21). A lower mounting post (3) is installed at the bottom of the lower flange (31). A drill bit (32) is installed at the bottom end of the lower mounting post (3). A slot (33) is formed on the outer surface of one side of the lower mounting post (3). An outer sleeve (4) for closing the slot (33) is sleeved on the outer surface of the lower mounting post (3); An inner movable rod (5) for pushing and pulling the soil loading box assembly (7) is provided on the inner wall of the inner sleeve (23). A limiting plate (6) for limiting the soil loading box assembly (7) is installed at the bottom end of the inner movable rod (5); A soil loading box assembly (7) for storing soil is installed at the front end of the limiting plate (6). An earth digging assembly (8) for collecting soil is installed on the outer surface of one side of the soil loading box assembly (7). The inner movable rod (5) includes a fixed rod (61). The fixed rod (61) is arranged at the bottom end of the inner movable rod (5). A movable box assembly (9) is arranged at the bottom end of the fixed rod (61). The movable box assembly (9) includes a bottom box (91). The bottom box (91) is arranged at the bottom of the movable box assembly (9). A locking assembly (108) is installed at the bottom of the bottom box (91); The earth digging assembly (8) includes an earth digging box (84). Arc-shaped surfaces (80) are arranged at the top and bottom of the earth digging box (84). An opening (81) is formed on one side of the earth digging box (84). A first filter stone plate (82) and a second filter stone plate (83) are installed on the inner walls of the bottom and top of the earth digging box (84) close to the opening (81). The first filter stone plate (82) and the second filter stone plate (83) are arranged in a shape of an eight characters; The number of the first filter stone plates (82) and the second filter stone plates (83) is set to several groups. The gap between several groups of the first filter stone plates (82) and the second filter stone plates (83) is set to two millimeters. The outer length and width of the earth digging assembly (8) are equal to the inner length and width of the slot (33).

2. The soil sampling device for environmental soil detection according to claim 1, characterized in that: The inner movable rod (5) includes a first pin shaft (50). The first pin shaft (50) is arranged at the top end of the inner movable rod (5). A mounting plate (51) is sleeved on the outer surface of the first pin shaft (50). The inner movable rod (5) is slidably connected to the inner wall of the inner sleeve (23). The mounting plate (51) is arranged inside the sliding groove (20). The mounting plate (51) is rotatably connected to the inner movable rod (5) through the first pin shaft (50).

3. The soil sampling device for environmental soil detection according to claim 1, wherein: The limiting plate (6) includes a second pin shaft (60). The second pin shaft (60) is arranged at the front end of the limiting plate (6). A rotating plate (62) is sleeved on the outer surface of the second pin shaft (60). The rotating plate (62) is rotatably connected to the limiting plate (6) through the second pin shaft (60). The soil loading box assembly (7) is fixedly connected to the bottom end of the rotating plate (62). The number of the soil loading box assemblies (7) is set to two groups. Springs (90) are installed on the left and right sides of the two groups of soil loading box assemblies (7).

4. A soil sampling device for environmental soil detection according to claim 1, characterized in that: External threads (30) are installed on the outer surface of the upper part of the lower mounting column (3). Internal threads (40) are installed on the inner wall of the top of the outer sleeve (4). The outer sleeve (4) is sleeved on the outer surface of the lower mounting column (3) and is threadedly connected to the external threads (30) installed on the outer surface of the lower mounting column (3) through the internal threads (40). The outer sleeve (4) is arranged above the slot (33).

5. The soil sampling device for environmental soil detection according to claim 1, characterized in that: The soil loading box assembly (7) includes a chain plate (70). The chain plate (70) is arranged on one side of the bottom of the soil loading box assembly (7). One end of the chain plate (70) is installed with a cover plate (71). A threaded plate (72) is installed at the bottom of the cover plate (71). A fixing screw (721) is arranged on the inner wall of the threaded plate (72). The cover plate (71) is rotatably connected to the bottom of the soil loading box assembly (7) through the chain plate (70). The fixing screw (721) is threadedly connected to the bottom of the soil loading box assembly (7) and the threaded plate (72).

6. The soil sampling device for environmental soil detection according to claim 1, characterized in that: A first rotating shaft (92) is installed at the front end of the bottom box (91). A rotating arm (93) is installed at one end of the first rotating shaft (92). A limiting seat (94) is sleeved on the outer surface of the rotating arm (93). The limiting seat (94) is installed inside the soil loading box assembly (7). A first gear (95) is sleeved on the outer surface of the first rotating shaft (92). A third gear (97) is meshed and connected to one side of the first gear (95). A second rotating shaft (96) is sleeved on the inner wall of the third gear (97). The second rotating shaft (96) is installed at the front end of the bottom box (91).

7. The soil sampling device for environmental soil detection according to claim 1, wherein: The locking assembly (108) includes a telescopic column (100). The telescopic column (100) is installed on the inner wall of the top of the bottom box (91). A rack (101) is installed at the bottom end of the telescopic column (100). A clamping plate (102) is installed at the bottom end of the rack (101). A third rotating shaft (104) is installed at the front end of the bottom box (91). A driving gear (103) is sleeved on the outer surface of the third rotating shaft (104). A connecting plate (105) is installed on one side of the third rotating shaft (104). A steel ball (106) is installed at the end of the connecting plate (105). A stop rod (107) is installed at the front end of the bottom box (91).

8. The soil sampling device for environmental soil detection according to claim 7, characterized in that: The driving gear (103) is meshed and connected to the rack (101). The driving gear (103) is rotatably connected to the front end of the bottom box (91) through the third rotating shaft (104). The rack (101) is arranged to move up and down through the telescopic column (100) on the inner wall of the top of the bottom box (91).

Images