A pretreatment device for determining water-soluble salts in soil
By designing a pretreatment device for soil water-soluble salt determination, the problem of low mixing efficiency caused by hand-held shaking is solved by using multiple bottom placement seats and electric push rods to drive the stirring brush, and multiple test tubes are simultaneously fixed and clamped and mixed efficiently.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA NAT INSPECTION & TESTING HLDG GRP QINGDAO JINGCHENG CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the determination of water-soluble salts in soil requires shaking the test tubes by hand before mixing, which is inefficient, time-consuming, and labor-intensive, and cannot process multiple test tubes at the same time.
Design a pretreatment device that uses multiple bottom mounting seats, bidirectional screws in the adjusting shell, and electric push rods to fix and clamp the test tubes, and drives the stirring brush to stir synchronously through the rotating shaft. It is suitable for test tubes of different heights.
It enables the simultaneous fixing and clamping of multiple test tubes, saving time and effort, improving the mixing efficiency of soil and water, and is suitable for different test tube sizes, making it easy to operate.
Smart Images
Figure CN224518305U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of soil water-soluble salt determination technology, specifically relating to a pretreatment device for determining water-soluble salts in soil. Background Technology
[0002] Soil soluble salts refer to the water-soluble salts contained in soil extracted using a specific water-to-soil ratio and over a certain period of time. Soil refers to salts that are soluble in weak acids, weak alkalis, or water. These are typically water-soluble salts, such as sulfates, hydrochlorides, carbonates, or acidic carbonates of calcium, magnesium, sodium, and potassium. When the total content exceeds 11.2%, salinization occurs. A certain amount of soluble salts in the soil directly affects the normal growth of crops. The degree of harm caused by soluble salts varies depending on their composition, and this is also closely related to the salt tolerance of different crops.
[0003] Before determining the water-soluble salts in soil, the soil sample needs to be dissolved in water and thoroughly mixed. However, the mixing method involves shaking the test tube by hand, which results in poor mixing and only allows one test tube to be shaken at a time, which is time-consuming, labor-intensive, and inefficient. Therefore, we propose a pretreatment device for determining water-soluble salts in soil. Utility Model Content
[0004] The purpose of this invention is to provide a pretreatment device for determining water-soluble salts in soil, in order to solve the problems mentioned in the background art, which require dissolving the soil sample in water and mixing it thoroughly before determining the water-soluble salts in soil. The mixing method involves shaking the test tube by hand, which results in poor mixing effect and only allows shaking one test tube at a time, which is time-consuming, labor-intensive, and inefficient.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pretreatment device for determining water-soluble salts in soil, comprising a base plate, several bottom placement seats fixedly installed on the upper surface of the base plate, a vertical plate fixedly installed on the side of the base plate, the vertical plate corresponding to the bottom placement seats, two adjusting shells provided on the side of the vertical plate, the adjusting shell at the lower position fixedly installed on the side of the vertical plate, and the adjusting shell at the upper position movably disposed on the side of the vertical plate, a fixing block fixedly installed on the surface of the adjusting shell at the upper position, a fixing rod slidably installed on the fixing block, an operating plate fixedly installed at one end of the fixing rod, several fixing grooves opened on the side of the vertical plate, and the other end of the fixing rod connected to the fixing plate. The adjustable housing is used in conjunction with a fixed slot. A motor is fixedly installed on the side of the adjustable housing. A bidirectional screw is rotatably installed inside the adjustable housing. The output shaft of the motor is fixedly connected to one end of the bidirectional screw. Connecting brackets are threaded onto the outer surfaces of both threads of the bidirectional screw. The connecting brackets pass through a channel opened on the side of the adjustable housing and are fixedly installed with a clamping plate. A top plate is fixedly installed at the top of the vertical plate. An electric push rod is fixedly installed on the top plate. An mounting plate is fixedly installed at the bottom end of the piston rod of the electric push rod. Several motors are fixedly installed on the mounting plate. A rotating shaft is fixedly installed on the output shaft of the motors. Several agitating brushes are fixedly installed on the outer surface of the rotating shaft. The agitating brushes are located directly above the bottom placement seat at the corresponding position.
[0006] The above solution, by setting multiple bottom placement seats, allows the test tubes to rest on the bottom of the seats. The rotation of the bidirectional screw inside the adjusting shell drives the movement of the clamping plate, thus securing the test tubes. An electric push rod drives the mounting plate up and down, which in turn drives the rotating shaft to move the stirring brush deep into the test tube for mixing. This not only allows for the simultaneous securing of multiple test tubes but also eliminates the need for hand-shaking, ensuring thorough mixing of soil and water. It saves time and effort, improving work efficiency. By using a vertical plate with two adjusting shells—one fixed and the other movable—it can be used to secure test tubes of different heights, increasing versatility and making operation and adjustment convenient.
[0007] In the above scheme, it should be noted that motor one, motor two and electric push rod are all electrically connected to an external power supply.
[0008] In a preferred embodiment, a plurality of suction cups are fixedly installed on the lower surface of the base plate, and the plurality of suction cups are correspondingly arranged at both ends of the base plate.
[0009] By adopting the above solution, the suction cup can stably adhere the entire device to the workbench surface, maintaining good operational stability.
[0010] In a preferred embodiment, a number of trapezoidal sliders are fixedly installed on the side of the adjustment shell at the upper position, and a number of trapezoidal grooves are opened on the side of the vertical plate, with the trapezoidal sliders slidably installed on the inner wall of the trapezoidal grooves.
[0011] By adopting the above scheme, the trapezoidal slider can slide within the trapezoidal groove, ensuring the stable up-and-down movement of the adjustment shell at the upper position and preventing separation from the vertical plate during the up-and-down sliding adjustment process.
[0012] In a preferred embodiment, a plurality of limiting strips are fixedly installed on the inner wall of the adjusting shell, and the surface of the connecting frame is provided with limiting grooves for the limiting strips to slide.
[0013] By using the above solution, and by combining the limiting strip and the limiting groove, the connecting frame can be guaranteed to have good stability during movement and is not prone to shaking.
[0014] In a preferred embodiment, a limiting ring is fixedly installed on the outer surface of the fixing rod, and a spring is fixedly installed between the limiting ring and the fixing block.
[0015] By adopting the above solution, the setting of the limiting ring can prevent the fixed rod from slipping off the fixed block, thus achieving a limiting effect. The elastic force of the spring can drive the fixed rod to quickly snap into the fixed groove, improving the convenience of locking during the fixing operation.
[0016] In a preferred embodiment, anti-slip pads are fixedly installed on the side of the card plate, and two anti-slip pads are arranged opposite each other on the adjustment shell.
[0017] By adopting the above solution, the anti-slip pads can provide an anti-slip effect when the clamping plate secures the test tube, thus improving the fixation effect.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] This pretreatment device for determining water-soluble salts in soil uses multiple bottom placement seats. The test tubes are placed in the bottom placement seats, and the bidirectional screw in the adjusting shell drives the movement of the clamping plate to fix the test tubes. The electric push rod drives the mounting plate up and down, which in turn drives the rotating shaft to drive the stirring brush to penetrate into the test tube for stirring. This device can not only fix multiple test tubes simultaneously, but also eliminates the need for hand shaking, ensuring thorough mixing of soil and water, saving time and effort, and improving work efficiency.
[0020] This pretreatment device for determining water-soluble salts in soil uses a vertical plate in conjunction with two adjusting shells. One adjusting shell is fixed while the other is movable, thus it can be used to fix and clamp test tubes of different heights, improving its versatility and making operation and adjustment convenient. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a structural schematic diagram of the adjusting shell, trapezoidal slider, and fixing block of this utility model;
[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the adjusting shell of this utility model;
[0024] Figure 4 This is a schematic diagram of the structure of the top plate of this utility model;
[0025] Figure 5 This is a schematic diagram of the structure of the fixing block of this utility model.
[0026] In the diagram: 1. Base plate; 2. Bottom placement seat; 3. Vertical plate; 4. Adjustment shell; 5. Fixing block; 6. Fixing rod; 7. Operation panel; 8. Motor 1; 9. Bidirectional screw; 10. Connecting frame; 11. Clamping plate; 12. Top plate; 13. Electric push rod; 14. Mounting plate; 15. Motor 2; 16. Rotating shaft; 17. Agitating brush; 18. Suction cup; 19. Trapezoidal slider; 20. Limiting strip; 21. Limiting ring; 22. Spring; 23. Anti-slip pad. Detailed Implementation
[0027] Please see Figure 1-5This utility model provides a pretreatment device for determining water-soluble salts in soil, including a base plate 1. Several bottom placement seats 2 are fixedly installed on the upper surface of the base plate 1. A vertical plate 3 is fixedly installed on the side of the base plate 1, with the vertical plate 3 corresponding to the bottom placement seats 2. Two adjusting shells 4 are provided on the side of the vertical plate 3. The adjusting shell 4 at the lower position is fixedly installed on the side of the vertical plate 3, while the adjusting shell 4 at the upper position is movably disposed on the side of the vertical plate 3. A fixing block 5 is fixedly installed on the surface of the adjusting shell 4 at the upper position. A fixing rod 6 is slidably installed on the fixing block 5. An operating plate 7 is fixedly installed at one end of the fixing rod 6. Several fixing grooves are opened on the side of the vertical plate 3, and the other end of the fixing rod 6 cooperates with the fixing grooves. The side of the adjusting shell 4 is fixed... Motor 8 is installed, and a bidirectional screw 9 is rotatably installed inside the adjusting housing 4. The output shaft of motor 8 is fixedly connected to one end of the bidirectional screw 9. Connecting brackets 10 are threaded on the outer surfaces of both ends of the bidirectional screw 9. The connecting brackets 10 pass through the channel opened on the side of the adjusting housing 4 and are fixedly installed with a clamping plate 11. A top plate 12 is fixedly installed at the top of the vertical plate 3. An electric push rod 13 is fixedly installed on the top plate 12. A mounting plate 14 is fixedly installed at the bottom end of the piston rod of the electric push rod 13. Several motors 15 are fixedly installed on the mounting plate 14. A rotating shaft 16 is fixedly installed on the output shaft of motor 15. Several stirring brushes 17 are fixedly installed on the outer surface of the rotating shaft 16. The stirring brushes 17 are located directly above the bottom placement seat 2 at the corresponding position.
[0028] By setting multiple bottom placement seats 2, the bottom of the test tube rests in the bottom placement seat 2. With the rotation of the bidirectional screw 9 in the adjusting shell 4, the clamping plate 11 is moved, thus fixing and clamping the test tube. With the electric push rod 13, the mounting plate 14 is moved up and down, which in turn drives the rotating shaft 16 to drive the stirring brush 17 to penetrate into the test tube for stirring. This not only allows multiple test tubes to be fixed and clamped at the same time, but also eliminates the need for hand shaking, ensuring thorough mixing of soil and water, saving time and effort, and improving work efficiency. By setting a vertical plate 3 to work with two adjusting shells 4, one adjusting shell 4 is fixed and the other is movable, so it can be used to fix and clamp test tubes of different heights and specifications, improving the versatility of use and making operation and adjustment convenient.
[0029] Several suction cups 18 are fixedly installed on the lower surface of the base plate 1. The suction cups 18 are arranged at both ends of the base plate 1. The suction cups 18 can stably adhere the entire device to the workbench and maintain good stability during use.
[0030] Several trapezoidal sliders 19 are fixedly installed on the side of the adjustment shell 4 at the upper position. Several trapezoidal grooves are opened on the side of the vertical plate 3. The trapezoidal sliders 19 are slidably installed on the inner wall of the trapezoidal grooves. By using the trapezoidal sliders 19 to slide in the trapezoidal grooves, the stable up and down movement of the adjustment shell 4 at the upper position can be ensured, and separation from the vertical plate 3 can be avoided during the up and down sliding adjustment process.
[0031] Several limiting strips 20 are fixedly installed on the inner wall of the adjusting shell 4. The surface of the connecting frame 10 is provided with a limiting groove for the limiting strips 20 to slide. By using the limiting strips 20 and the limiting groove in combination, the connecting frame 10 can be guaranteed to have good stability during movement and is not prone to shaking.
[0032] A limiting ring 21 is fixedly installed on the outer surface of the fixing rod 6. A spring 22 is fixedly installed between the limiting ring 21 and the fixing block 5. The limiting ring 21 can prevent the fixing rod 6 from sliding away from the fixing block 5, thus achieving a limiting effect. The elastic force of the spring 22 can drive the fixing rod 6 to quickly snap into the fixing groove, improving the convenience of fixing and locking.
[0033] Anti-slip pads 23 are fixedly installed on the side of the clamping plate 11. Two anti-slip pads 23 are arranged opposite each other on the adjusting shell 4. The anti-slip pads 23 can play an anti-slip role when the clamping plate 11 is used to fix and clamp the test tube, thereby improving the fixing effect.
[0034] In use, the base plate 1 is attached to the workbench using suction cup 18. The bottom of the test tube is then placed in the bottom holder 2. The height of the upper adjusting shell 4 is adjusted according to the height of the test tube. During adjustment, pulling the operating plate 7 causes the fixing rod 6 to move and disengage from the fixing groove. At this time, the spring 22 deforms, and the upper adjusting shell 4 unlocks and can slide up and down using the trapezoidal slider 19. After sliding to the appropriate height, the operating plate 7 is released, and the elastic force of the spring 22 drives the fixing rod 6 back into the fixing groove, achieving position locking. The motor 8 is started to drive the bidirectional screw 9 to rotate, which in turn drives the connecting frame 10 to move the clamping plate 11. The clamping plate 11 is used to fix and clamp the test tube. Then the motor 8 is stopped, and the soil sample and water are added into the test tube. The electric push rod 13 is started to drive the mounting plate 14 to move downward, which in turn drives the rotating shaft 16 and the stirring brush 17 to move downward into the test tube. Then the electric push rod 13 is stopped and the motor 15 is started. The motor 15 drives the stirring brush 17 to rotate through the rotating shaft 16, so that the soil and water are fully mixed and agitated.
Claims
1. A pre-treatment device for the determination of water soluble salts in soil, characterized in that: Includes a base plate (1), on the upper surface of which several bottom placement seats (2) are fixedly installed. A vertical plate (3) is fixedly installed on the side of the base plate (1), and the vertical plate (3) is arranged corresponding to the bottom placement seats (2). Two adjusting shells (4) are provided on the side of the vertical plate (3). The adjusting shell (4) at the lower position is fixedly installed on the side of the vertical plate (3), and the adjusting shell (4) at the upper position is movably disposed on the side of the vertical plate (3). A fixing block (5) is fixedly installed on the surface of the adjusting shell (4). A fixing rod (6) is slidably installed on the fixing block (5). An operating plate (7) is fixedly installed on one end of the fixing rod (6). Several fixing grooves are opened on the side of the vertical plate (3). The other end of the fixing rod (6) is used in conjunction with the fixing grooves. A motor (8) is fixedly installed on the side of the adjusting shell (4). 4) is internally mounted with a bidirectional screw (9). The output shaft of the motor (8) is fixedly connected to one end of the bidirectional screw (9). The two threads of the bidirectional screw (9) are threadedly mounted with connecting brackets (10). The connecting brackets (10) pass through the channel opened on the side of the adjusting shell (4) and are fixedly mounted with a clamping plate (11). The top of the vertical plate (3) is fixedly mounted with a top plate (12). An electric push rod (13) is fixedly mounted on the top plate (12). The bottom of the piston rod of the electric push rod (13) is fixedly mounted with a mounting plate (14). Several motors (15) are fixedly mounted on the mounting plate (14). The output shaft of the motor (15) is fixedly mounted with a rotating shaft (16). Several stirring brushes (17) are fixedly mounted on the outer surface of the rotating shaft (16). The stirring brushes (17) are located directly above the bottom placement seat (2) at the corresponding position.
2. The pre-treatment device for the determination of water soluble salts in soil according to claim 1, characterized in that: A number of suction cups (18) are fixedly installed on the lower surface of the base plate (1), and the suction cups (18) are arranged at both ends of the base plate (1).
3. The pre-treatment device for the determination of water soluble salts in soil according to claim 1, characterized in that: Several trapezoidal sliders (19) are fixedly installed on the side of the adjustment shell (4) at the upper position, and several trapezoidal grooves are opened on the side of the vertical plate (3). The trapezoidal sliders (19) are slidably installed on the inner wall of the trapezoidal grooves.
4. The pre-treatment device for the determination of water soluble salts in soil according to claim 1, characterized in that: The inner wall of the adjusting shell (4) is fixedly installed with several limiting strips (20), and the surface of the connecting frame (10) is provided with a limiting groove for the limiting strips (20) to slide.
5. The pre-treatment device for the determination of water soluble salts in soil according to claim 1, characterized in that: A limiting ring (21) is fixedly installed on the outer surface of the fixing rod (6), and a spring (22) is fixedly installed between the limiting ring (21) and the fixing block (5).
6. The pretreatment apparatus for determining water-soluble salts in soil according to claim 1, characterized in that: Anti-slip pads (23) are fixedly installed on the side of the card plate (11), and two anti-slip pads (23) are arranged opposite each other on the adjustment shell (4).