Soil water stability large aggregate sample test tool

Abstract

The utility model belongs to the technical field of soil analysis experiment equipment, and particularly relates to a soil water stability large aggregate sample test tool which comprises a base, screws, a clamping ring and a nut sliding block, the base is used for supporting a sieve tray, the two screws are rotationally installed on the two opposite sides of the base respectively, the four screws are used for jointly clamping the sieve tray, and the nut sliding block is arranged on the base. Each screw rod is sequentially provided with a clamping ring and a nut sliding block from bottom to top, the nut sliding blocks are in threaded connection with the corresponding screw rods, and fixing claws are arranged on the clamping rings in an obliquely downward mode. The soil water stability large aggregate sample experiment device is suitable for small-component samples and soil water stability large aggregate sample experiments needing to rapidly obtain experiment results, and is easy to manufacture and high in practicability. Operation is simple and easy to understand, no complex internal structure exists, the self-weight positioning piece can automatically position and clamp the sieve tray through the self weight of the sieve tray placed on the base, the operation difficulty is lowered, and the operation efficiency of an experiment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of soil analysis experimental equipment, in particular to a soil water-stable macroaggregate sample test tool. Background Art

[0002] In the detection of water-stable macroaggregates in soil, soil samples need to be screened for particle size to examine the particle size distribution ratio of the soil samples, thereby determining the status of water-stable macroaggregates in the soil.

[0003] The existing technology has a multi-layer automatic vibration screen. The mesh sizes of the tightly stacked multi-layer sieve plates are distributed from large to small from top to bottom. The multi-layer sieve plates are vibrated by a vibration motor, and the samples are screened through the sieve holes of different mesh sizes on the multi-layer sieve plates, thereby obtaining samples of different mesh particle sizes. However, the multi-layer automatic vibration screen of the existing technology is only suitable for continuous operation of large samples, and the single operation cycle is long. It is difficult to meet the needs of laboratories in the scenario of small samples and the need to quickly obtain experimental data. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a soil water-stable large aggregate sample testing tool, comprising: a base, a screw, a clamping ring, and a nut slider. The base is used to support a sieve plate. Two screws are rotatably installed on opposite sides of the base. The four screws are used to clamp the sieve plate together. A clamping ring and a nut slider are installed on each screw in sequence from bottom to top. The nut slider is threadedly connected to the corresponding screw, and a fixing claw is arranged on the clamping ring obliquely downward.

[0005] Preferably, the ends of the two screw rods on the same side of each base away from the base are connected by a holding rod, the two ends of the holding rod and the two screw rods are detachably connected, and the surface of the holding rod is provided with anti-slip fingerprints.

[0006] Preferably, the clamping ring and the nut slider are rotatably connected, and the clamping ring can rotate circumferentially around the nut slider.

[0007] Preferably, self-weight positioning parts are rotatably installed on both sides of the base where no screw is installed, and each of the self-weight positioning parts is provided with a support plate for supporting the bottom of the sieve plate in the direction pointing to the inside of the base, and each of the self-weight positioning parts is provided with a positioning claw for clamping and positioning the side of the sieve plate.

[0008] Preferably, the weight of each positioning claw is greater than that of the support plate on the same self-weight positioning member, and when the base is placed horizontally, the positioning claw causes the support plate to rotate and tilt upward.

[0009] Preferably, the self-weight positioning member is made of spring steel.

[0010] Compared with the prior art, the utility model provides a soil water-stable macroaggregate sample test tool, which has the following beneficial effects:

[0011] The utility model is suitable for the soil water stability large aggregate sample test experiment which needs to obtain the experimental results quickly with small sample. The manufacture is simple and the operation is easy to understand. There is no complicated internal structure. The self-weight positioning part can use the self-weight of the sieve plate placed on the base to automatically position and clamp the sieve plate, which reduces the operation difficulty and improves the operation efficiency of the experiment. At the same time, the number of layers of the sieve plate can be defined according to actual needs to meet the needs of different experimental objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model when the sieve plate is not installed;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model after the sieve plate is installed;

[0014] Figure 3 This is a schematic diagram of the principle of use of self-weight locating parts.

[0015] In the figure: 1. base; 2. screw; 3. holding rod; 4. nut slider; 5. clamping ring; 6. fixing claw; 7. self-weight positioning piece; 8. support plate; 9. positioning claw. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Example

[0018] Reference Figures 1 to 3 The utility model provides a soil water-stable macroaggregate sample test tool, including: a base 1, a screw 2, a clamping ring 5, and a nut slider 4. The base 1 is used to support the sieve plate. Two screws 2 are rotatably installed on opposite sides of the base 1. The four screws 2 are used to clamp the sieve plate together to limit the horizontal movement of the sieve plate. A clamping ring 5 and a nut slider 4 are sequentially installed on each screw 2 from bottom to top. The nut slider 4 is threadedly connected to the corresponding screw 2, and a fixing claw 6 is obliquely downwardly arranged on the clamping ring 5. The screw 2 can adopt national standard parts and be welded on the rotating shaft through a rotating shaft to realize rotation on the base 1. When it is rotated to the same plane as the base 1, the occupied space can be reduced, and it is further convenient for multiple identical utility models to be stacked and placed, which is convenient for transportation and storage.

[0019] In order to reduce the cost and production difficulty, the base 1 can be made of standard profiles such as steel bars or angle irons, and can be made into a shape that can support the sieve plate. The clamping ring 5 can be a nut or a straight cylinder with a larger diameter than the screw 2. The fixing claw 6 is used to clamp the sieve plate at the top layer to limit the vertical movement of the sieve plate. Figure 2 .

[0020] The ends of the two screw rods 2 on the same side of each base 1 away from the base 1 are connected by a holding rod 3, which is convenient for hand holding during manual vibration. The two ends of the holding rod 3 and the two screw rods 2 are detachably connected, which is convenient for reducing welding points and further reducing production costs. The surface of the holding rod 3 is provided with anti-slip hand patterns to increase the friction of holding and improve the holding efficiency.

[0021] The clamping ring 5 and the nut slider 4 are rotatably connected. When assembling the sieve plate, the clamping ring 5 and the nut slider 4 are connected at the same time, which can reduce the complexity of operation. When the nut slider 4 is rotated to move on the screw rod 2, one-handed operation can be achieved instead of holding the nut slider 4 with one hand and the clamping ring 5 with the other hand. The clamping ring 5 can rotate circumferentially around the nut slider 4, which is convenient for the clamping ring 5 to rotate to the angle where the fixed claw 6 does not interfere with the sieve plate.

[0022] like Figure 3 Self-weight positioning parts 7 are rotatably installed on both sides of the base 1 where the screw 2 is not installed. Each self-weight positioning part 7 is provided with a support plate 8 for supporting the bottom of the sieve plate in the direction pointing to the inside of the base 1. Each self-weight positioning part 7 is provided with a positioning claw 9 for clamping and positioning the side of the sieve plate. When the sieve plate is seated on the support plate 8 of the self-weight positioning part 7, the self-weight of the sieve plate presses down the support plates 8 on both sides, and then the positioning claws 9 on both sides rotate upward, thereby positioning and clamping the sieve plate, and there is no need to fix it all the time. At this time, you can focus on rotating the nut slider 4 on the screw 2 until the fixing claws 6 clamp and fix the sieve plate.

[0023] like Figure 3 The weight of each positioning claw 9 is greater than the support plate 8 on the same self-weight positioning member 7. When the base 1 is placed horizontally, the positioning claw 9 causes the support plate 8 to rotate upward and tilt, so that the sieve plate can be directly pressed onto the support plate 8 when placed on the base 1 without the need for adjustment.

[0024] The self-weight positioning member 7 is made of spring steel, which has certain toughness and strength. In actual production, a structure in which two spring steel plates are welded to a rotating shaft can be adopted.

[0025] Reference Figure 2When in use, stack a set number of sieve plates in sequence, rotate the screw 2 to the same plane as the base 1, or rotate it to a position that does not interfere with the placement of the sieve plates, and then place the stacked sieve plates on the base 1. At this time, the sieve plate at the bottom is pressed against the support plate 8, and the positioning claws 9 clamp the sieve plate at the bottom circumferentially under the rotation of the self-weight positioning member 7, and fix the bottom sieve plate together. At this time, rotate the four screws 2 upward to the position against the clamping sieve plate, and rotate the nut slider 4 downward to the position where the fixing claws 6 of the clamping ring 5 are against the edge of the top sieve plate. At this time, the four screws 2 limit the horizontal movement of the sieve plate, and the base 1 and the clamping ring 5 limit the vertical movement of the sieve plate. At this time, hold the holding connecting rod 3 with both hands, and vibrate and screen the entire structure to obtain particle size samples of different mesh sizes.

[0026] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A soil water-stable macroaggregate sample test tool, characterized in that: include: A base (1), a screw rod (2), a clamping ring (5), and a nut slider (4). The base (1) is used to support a sieve plate. Two screw rods (2) are rotatably mounted on opposite sides of the base (1). The four screw rods (2) are used to clamp the sieve plate together. A clamping ring (5) and a nut slider (4) are sequentially mounted on each screw rod (2) from bottom to top. The nut slider (4) is threadedly connected to the corresponding screw rod (2). A fixing claw (6) is obliquely arranged on the clamping ring (5).

2. A soil water-stable macroaggregate sample testing tool according to claim 1, characterized in that: The ends of the two screw rods (2) on the same side of each base (1) away from the base (1) are connected by a holding connecting rod (3), the two ends of the holding connecting rod (3) and the two screw rods (2) are detachably connected, and the surface of the holding connecting rod (3) is provided with anti-slip hand lines.

3. A soil water-stable macroaggregate sample testing tool according to claim 1, characterized in that: The clamping ring (5) is rotatably connected to the nut slider (4), and the clamping ring (5) can rotate circumferentially around the nut slider (4).

4. A soil water-stable macroaggregate sample testing tool according to claim 1, characterized in that: Self-weight positioning members (7) are rotatably mounted on both sides of the base (1) where the screw rod (2) is not mounted. Each of the self-weight positioning members (7) is provided with a support plate (8) for supporting the bottom of the sieve plate in a direction pointing to the inside of the base (1). Each of the self-weight positioning members (7) is provided with a positioning claw (9) for clamping and positioning the side of the sieve plate.

5. A soil water-stable macroaggregate sample testing tool according to claim 4, characterized in that: The weight of each positioning claw (9) is greater than that of the support plate (8) on the same self-weight positioning member (7), and when the base (1) is placed horizontally, the positioning claw (9) causes the support plate (8) to rotate and tilt upward.

6. A soil water-stable macroaggregate sample testing tool according to claim 4, characterized in that: The self-weight positioning member (7) is made of spring steel.

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