Multi-stage sampling device for soil detection

Abstract

The utility model discloses a multistage sampling device for soil detection, which belongs to the technical field of soil detection and comprises an outer barrel, two handles are fixed on the outer surface of the top end of the outer barrel, and an air cylinder is fixedly mounted at the top end of the outer barrel. The end of a piston rod of the air cylinder extends into the outer barrel and is fixedly provided with a sliding rod, the sliding rod slidably penetrates and extends out of the outer barrel and is fixedly provided with an installation disc, and a sampling conical barrel is installed on the lower surface of the installation disc in a threaded mode. The air cylinder is arranged to be matched with the sliding rod, the mounting disc and the sampling conical barrel for use, deep soil sampling operation is achieved, the abutting plate is matched with the sliding plate and the contact switch for use, the sliding plate can slide up and down to adjust the position, and accurate position control is achieved through the pointer and the scale strip; when the contact plate moves to touch the contact switch, the surface reaches the required sampling depth, so that the soil sampling depth can be accurately controlled, the multi-level depth accurate sampling operation is achieved, and the operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of soil detection, and in particular relates to a multi-stage sampling device used for soil detection. Background Art

[0002] Soil testing is the process of determining various physical and chemical properties of soil, such as iron, manganese, total potassium, organic matter, total nitrogen, available phosphorus, total phosphorus, moisture, total arsenic, available boron, fluoride, chloride, mineral oil and total salt content, by using appropriate measurement methods.

[0003] Sampling is required during soil testing, but existing soil sampling devices only have a simple soil penetration function when in use, and are unable to perform multi-level precise depth sampling operations according to sampling depth requirements, and thus have certain limitations in use. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-stage sampling device for soil detection, so as to solve the problem that the existing soil sampling device proposed in the above background technology only has a simple deep-soil function when in use, but cannot perform multi-stage precise depth sampling operations according to the sampling depth requirements, and has certain limitations in use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage sampling device for soil detection, comprising an outer cylinder, two handles are fixed on the outer surface of the top end of the outer cylinder, a cylinder is fixedly installed on the top end of the outer cylinder, the piston rod end of the cylinder extends into the inner part of the outer cylinder and is fixedly installed with a sliding rod, the sliding rod slides through and extends out of the outer cylinder and is fixedly installed with a mounting plate, a sampling cone is threadedly installed on the lower surface of the mounting plate, the outer surface of the sampling cone has a sampling port, and the outer surface of the top end of the sliding rod is fixedly installed A resistance plate is installed, and a slideway for the resistance plate to slide is provided on the outer cylinder body, a sliding plate is slidably installed on the outer surface of the outer cylinder body, a contact switch used in conjunction with the resistance plate is fixedly installed on the upper surface of the sliding plate, and the contact switch is electrically connected to the cylinder, a support tube is fixedly installed on the lower part of the outer surface of the outer cylinder body, both ends of the support tube have cavities inside and a sliding disk is movably provided in the cavity, a ground nail is fixedly installed on the lower surface of the sliding disk, and a through hole for the ground nail to pass through is provided on the lower surface of the support tube at a position opposite to the ground nail.

[0006] By adopting the above scheme, a cylinder is set to cooperate with a sliding rod, a mounting plate and a sampling cone to realize deep soil sampling operation. The contact plate is used in conjunction with a sliding plate and a contact switch. The sliding plate can slide up and down to adjust the position and the position can be accurately controlled by an indicator needle and a scale bar. When the contact plate moves until it touches the contact switch, the surface reaches the required sampling depth, and then the soil sampling depth can be accurately controlled to achieve multi-level depth precision sampling operations. The operation is convenient. By setting a support tube to cooperate with a ground nail, the ground nail can move up and down, and the ground nail can be operated to extend out of the support tube during sampling. After use, the ground nail can be operated to retract into the support tube, which has a good protective effect and prevents the ground nail from being exposed all the time. There are safety hazards.

[0007] In the above solution, it should be noted that the cylinder and the contact switch are both electrically connected to an external power source.

[0008] As a preferred embodiment, a plurality of limit blocks are fixed to the outer surface of the top end of the sliding rod, and a limit groove for use with the limit blocks is formed on the inner wall of the outer cylinder.

[0009] By adopting the above scheme, the limit block is used in conjunction with the limit slot. When the sliding rod is driven to move up and down during the extension and retraction of the cylinder, the sliding rod will drive the limit block to slide in the limit slot. Then, the limit block and the limit slot can be used together to ensure the smoothness of the up and down movement of the sliding rod.

[0010] As a preferred embodiment, a plurality of sliding bars are fixed to the outer surface of the outer cylinder, and the sliding plate is slidably mounted on the outer surface of the sliding bars.

[0011] By adopting the above solution, the sliding bar can be used to ensure smooth upward and downward sliding operation of the sliding plate.

[0012] As a preferred embodiment, a plurality of guide rods are fixedly installed on the side of the sliding plate, an operating plate is slidably installed on the outer surface of the guide rod, a spring is fixed between the end of the guide rod and the operating plate, a clamping rod is fixedly installed on the side of the operating plate, a circular hole for the clamping rod to pass through is provided on the sliding plate, and a plurality of clamping grooves for use with the clamping rod are provided on the side of the sliding bar.

[0013] By adopting the above scheme, when the operation panel moves to drive the card rod out of the card slot, the spring is in a deformed state. Therefore, the elasticity of the spring can be used to drive the card rod to quickly return to the card slot, thereby realizing the position adjustment and locking of the sliding plate. The setting of the guide rod can support the movement process of the operation panel, improve the movement stability and prevent shaking.

[0014] As a preferred embodiment, rotating shafts are rotatably installed on the upper and lower sides of the inner wall of the upper cavity of the support cylinder, a knob is fixed to the end of the rotating shaft at the upper position, a threaded rod is fixedly installed between the two rotating shafts, and the sliding disk is threadedly installed on the outer surface of the threaded rod.

[0015] By adopting the above scheme, the rotating shaft is used in conjunction with the threaded rod. The knob drives the rotating shaft to drive the threaded rod to rotate, and then drives the sliding plate to move up and down, thereby driving the ground nail to move up and down, so that the ground nail can be extended out of the support tube during sampling, and the ground nail can be operated to be retracted into the support tube after use.

[0016] As a preferred embodiment, a plurality of guide bars are fixedly mounted on the inner wall of the upper cavity of the support tube, and a guide groove for use with the guide bars is formed on the outer surface of the sliding disk.

[0017] By adopting the above solution, the guide bar and the guide groove are used together to support and guide the up and down movement of the sliding plate, thereby improving the stability of the up and down movement of the sliding plate.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The multi-stage sampling device used for soil detection realizes deep soil sampling operation by setting a cylinder to cooperate with a sliding rod, a mounting plate and a sampling cone, and uses a contact plate to cooperate with a sliding plate and a contact switch. The sliding plate can slide up and down to adjust the position and realize accurate position control through an indicator needle and a scale bar. When the contact plate moves to touch the contact switch, the surface reaches the required sampling depth, and the soil sampling depth can be accurately controlled, so as to achieve multi-stage depth precision sampling operation, and the operation is convenient;

[0020] The multi-stage sampling device used for soil testing is used by arranging a support tube in conjunction with a ground nail. The ground nail can move up and down. The ground nail can be operated to extend out of the support tube during sampling and can be operated to retract into the support tube after use, thereby achieving a good protective effect and preventing the ground nail from being exposed all the time, which poses a safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the outer cylinder of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the cross section of the outer cylinder of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the sliding plate of the utility model;

[0025] Figure 5It is an exploded schematic diagram of the installation plate and sampling cone of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the cross section of the support tube of the utility model.

[0027] In the figure: 1. outer cylinder; 2. handle; 3. cylinder; 4. sliding rod; 5. mounting plate; 6. sampling cone; 7. resistance plate; 8. sliding plate; 9. contact switch; 10. support cylinder; 11. sliding plate; 12. ground nail; 13. limit block; 14. sliding bar; 15. scale bar; 16. indicator needle; 17. operation panel; 18. clamping rod; 19. guide rod; 20. spring; 21. rotating shaft; 22. threaded rod; 23. guide bar. DETAILED DESCRIPTION

[0028] See also Figure 1-6 The utility model provides a multi-stage sampling device for soil detection, including an outer cylinder 1, two handles 2 are fixed on the outer surface of the top of the outer cylinder 1, a cylinder 3 is fixedly installed on the top of the outer cylinder 1, the piston rod end of the cylinder 3 extends into the inner part of the outer cylinder 1 and is fixedly installed with a sliding rod 4, the sliding rod 4 slides through and extends out of the outer cylinder 1 and is fixedly installed with a mounting plate 5, a sampling cone 6 is threadedly installed on the lower surface of the mounting plate 5, the outer surface of the sampling cone 6 has a sampling port, a top outer surface of the sliding rod 4 is fixedly installed with a contact plate 7, and the outer cylinder 1 is provided with a plurality of holes. A slideway is provided for the contact plate 7 to slide, a sliding plate 8 is slidably installed on the outer surface of the outer cylinder 1, a contact switch 9 used in conjunction with the contact plate 7 is fixedly installed on the upper surface of the sliding plate 8, the contact switch 9 is electrically connected to the cylinder 3, a support cylinder 10 is fixedly installed on the lower part of the outer surface of the outer cylinder 1, both ends of the support cylinder 10 have cavities inside and a sliding disk 11 is movably provided in the cavity, a ground nail 12 is fixedly installed on the lower surface of the sliding disk 11, and a through hole for the ground nail 12 to pass through is provided on the lower surface of the support cylinder 10 at a position opposite to the ground nail 12.

[0029] By setting the cylinder 3 to cooperate with the sliding rod 4, the mounting plate 5 and the sampling cone 6, the deep soil sampling operation is realized, and the contact plate 7 is used in conjunction with the sliding plate 8 and the contact switch 9. The sliding plate 8 can slide up and down to adjust the position and realize precise position control through the indicator needle 16 and the scale bar 15. When the contact plate 7 moves to touch the contact switch 9, the surface reaches the required sampling depth, and then the soil sampling depth can be accurately controlled to achieve multi-level depth precision sampling operation, which is easy to operate. By setting the support tube 10 to cooperate with the ground nail 12, the ground nail 12 can move up and down, and the ground nail 12 can be operated to extend out of the support tube 10 during sampling, and the ground nail 12 can be operated to retract into the support tube 10 after use, which has a good protective effect and prevents the ground nail 12 from being exposed all the time. There are potential safety hazards.

[0030] A number of limit blocks 13 are fixed to the outer surface of the top end of the sliding rod 4, and a limit groove is opened on the inner wall of the outer cylinder 1 for use with the limit block 13. The limit block 13 is used in conjunction with the limit groove. When the sliding rod 4 is driven to move up and down during the extension and retraction of the cylinder 3, the sliding rod 4 will drive the limit block 13 to slide in the limit groove, and then the limit block 13 and the limit groove can be used to ensure that the upward and downward movement of the sliding rod 4 is smooth.

[0031] A plurality of sliding bars 14 are fixed on the outer surface of the outer cylinder 1 , and the sliding plate 8 is slidably mounted on the outer surface of the sliding bars 14 . The arrangement of the sliding bars 14 can ensure smooth up and down sliding operation of the sliding plate 8 .

[0032] A plurality of guide rods 19 are fixedly installed on the side of the sliding plate 8, and an operating plate 17 is slidably installed on the outer surface of the guide rod 19. A spring 20 is fixed between the end of the guide rod 19 and the operating plate 17, and a clamping rod 18 is fixedly installed on the side of the operating plate 17. A round hole for the clamping rod 18 to pass through is provided on the sliding plate 8, and a plurality of clamping grooves for use with the clamping rod 18 are provided on the side of the sliding bar 14. When the operating plate 17 moves to drive the clamping rod 18 out of the clamping groove, the spring 20 is in a deformed state. Therefore, the elasticity of the spring 20 can be used to drive the clamping rod 18 to quickly reset and insert it into the clamping groove, so as to achieve the position adjustment and locking of the sliding plate 8. The setting of the guide rod 19 can support the movement process of the operating plate 17, improve the movement stability and prevent shaking.

[0033] A rotating shaft 21 is rotatably installed on both the upper and lower sides of the inner wall of the upper cavity of the support tube 10, a knob is fixed on the end of the rotating shaft 21 at the upper position, a threaded rod 22 is fixedly installed between the two rotating shafts 21, and the sliding disk 11 is threadedly installed on the outer surface of the threaded rod 22. The rotating shaft 21 is used in conjunction with the threaded rod 22, and the knob drives the rotating shaft 21 to drive the threaded rod 22 to rotate, thereby driving the sliding disk 11 to move up and down, thereby driving the ground nail 12 to move up and down, so that the ground nail 12 can be operated to extend out of the support tube 10 when sampling, and the ground nail 12 can be operated to retract into the support tube 10 after use.

[0034] A plurality of guide bars 23 are fixedly installed on the inner wall of the upper cavity of the support tube 10, and a guide groove is provided on the outer surface of the sliding plate 11 for use with the guide bars 23. The guide bars 23 and the guide groove are used together to support and guide the up and down movement of the sliding plate 11, thereby improving the stability of the up and down movement of the sliding plate 11.

[0035] When in use, the position of the sliding plate 8 is adjusted according to the sampling depth. When adjusting, the operating plate 17 is pulled, and the operating plate 17 slides on the surface of the guide rod 19 and drives the spring 20 to deform, and the clamping rod 18 is disengaged from the clamping slot. At this time, the sliding plate 8 is unlocked and can slide up and down, and the sampling depth is controlled and adjusted in conjunction with the indicator needle 16 and the scale bar 15. After adjusting to a suitable position, the operating plate 17 is released, and the elasticity of the spring 20 is used to drive the clamping rod 18 to reset and clamp into the clamping slot, so that the position of the sliding plate 8 is adjusted and locked, and then the outer cylinder 1 is supported by the handle 2 to face the sampling point, and the support cylinder 10 is brought into contact with the ground. , turn the knob to drive the rotating shaft 21 to drive the threaded rod 22 to rotate, and then drive the sliding disk 11 to drive the ground nail 12 to move downward, so that the ground nail 12 extends out of the supporting tube 10 and penetrates into the ground to ensure the overall stability, and then start the cylinder 3 to drive the sliding rod 4 to move downward, and the sliding rod 4 drives the sampling cone 6 to move downward through the mounting plate 5 and penetrate into the soil. At the same time, the sliding rod 4 will drive the contact plate 7 to move downward. When the contact plate 7 moves to contact with the contact switch 9, it will drive the cylinder 3 to stop moving. When the surface reaches the required depth, the soil will enter the sampling cone 6 through the sampling port to achieve sampling.

Claims

1. A multi-stage sampling device for soil detection, characterized in that: The invention comprises an outer cylinder (1), wherein two handles (2) are fixed on the outer surface of the top end of the outer cylinder (1), a cylinder (3) is fixedly installed on the top end of the outer cylinder (1), a piston rod end of the cylinder (3) extends into the interior of the outer cylinder (1) and is fixedly installed with a sliding rod (4), the sliding rod (4) slides through and extends out of the outer cylinder (1) and is fixedly installed with a mounting plate (5), a sampling cone (6) is threadedly installed on the lower surface of the mounting plate (5), the outer surface of the sampling cone (6) has a sampling port, a contact plate (7) is fixedly installed on the outer surface of the top end of the sliding rod (4), and a sliding groove for the contact plate (7) to slide is provided on the outer cylinder (1). The outer surface of the outer cylinder (1) is slidably mounted with a sliding plate (8), the upper surface of the sliding plate (8) is fixedly mounted with a contact switch (9) used in conjunction with the contact plate (7), the contact switch (9) is electrically connected to the cylinder (3), the lower portion of the outer surface of the outer cylinder (1) is fixedly mounted with a support cylinder (10), both ends of the support cylinder (10) have cavities inside and a sliding disk (11) is movably arranged in the cavity, a ground nail (12) is fixedly mounted on the lower surface of the sliding disk (11), and a through hole for the ground nail (12) to pass through is provided on the lower surface of the support cylinder (10) at a position opposite to the ground nail (12).

2. The multi-stage sampling device for soil detection according to claim 1, characterized in that: A plurality of limit blocks (13) are fixed to the outer surface of the top end of the sliding rod (4), and a limit groove for use with the limit blocks (13) is provided on the inner wall of the outer cylinder (1).

3. The multi-stage sampling device for soil detection according to claim 1, characterized in that: A plurality of sliding bars (14) are fixed on the outer surface of the outer cylinder (1), and the sliding plate (8) is slidably mounted on the outer surface of the sliding bars (14).

4. The multi-stage sampling device for soil detection according to claim 3, characterized in that: A plurality of guide rods (19) are fixedly mounted on the side of the sliding plate (8); an operating plate (17) is slidably mounted on the outer surface of the guide rod (19); a spring (20) is fixed between the end of the guide rod (19) and the operating plate (17); a clamping rod (18) is fixedly mounted on the side of the operating plate (17); a circular hole for the clamping rod (18) to pass through is provided on the sliding plate (8); and a plurality of clamping grooves for use with the clamping rod (18) are provided on the side of the sliding bar (14).

5. The multi-stage sampling device for soil detection according to claim 1, characterized in that: Rotating shafts (21) are rotatably mounted on both upper and lower sides of the inner wall of the upper cavity of the support tube (10); a knob is fixed to the end of the rotating shaft (21) at the upper position; a threaded rod (22) is fixedly mounted between the two rotating shafts (21); and the sliding disk (11) is threadedly mounted on the outer surface of the threaded rod (22).

6. The multi-stage sampling device for soil detection according to claim 1, characterized in that: A plurality of guide bars (23) are fixedly mounted on the inner wall of the upper cavity of the support tube (10), and a guide groove for use with the guide bars (23) is provided on the outer surface of the sliding plate (11).

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