Adjustable automatic soil screening device

Abstract

The utility model discloses an adjustable automatic soil screening device which comprises a soil screen, a cross beam base, a stirring device and an adjustable clamp, the cross beam base is in a strip plate shape, the stirring device is installed on the upper surface of the cross beam base and located at the center of the length direction, a guide rail is installed on the lower surface of the cross beam base and arranged in the length direction of the cross beam base, and the adjustable clamp is arranged on the cross beam base. At least two adjustable clamps are arranged in the guide rail in a sliding mode. The adjustable clamp designed by the utility model can be used for clamping soil sieves with different sizes and thicknesses, and is high in universality; only the soil screen needs to be replaced without replacing the clamp. According to the stirring device designed by the utility model, a soil sample is stirred above the screen, so that the soil sample can pass through the screen more easily.

Description

An adjustable automatic soil sieve Technical Field

[0001] This utility model relates to the field of laboratory soil sieving tools, and in particular to an adjustable automatic soil sieving device. Background Technology

[0002] Existing automatic soil sieving devices often lack the combination of a mixing brush, a vibrating sieving device, and an easily replaceable sieve, making it difficult to maintain high sieving efficiency when sieving large quantities of soil. For example, Chinese utility model patent CN207709355U discloses an automatic soil sieving device that relies solely on sieve vibration for sieving. This method has drawbacks: when sieving a large amount of soil sample at a time, the fine particles at the bottom are sieved quickly; however, the sieving path for the fine particles at the top is blocked, making it difficult for them to pass through the coarse particle layer solely through sieve vibration. Therefore, the sieving efficiency drops sharply after a period of time, resulting in long sieving time and low sieving efficiency.

[0003] In addition, to meet the screening requirements of different particle sizes, soil screens need to be changed frequently. When multiple soil screens have different outer diameters, the corresponding pallet and clamp sizes need to be adapted accordingly, lacking versatility. Summary of the Invention

[0004] To overcome the problems of low sieving efficiency, difficulty in adapting to different particle sizes, inability to adapt to changes in soil sieve shape, and lack of versatility in existing soil sample sieving processes, this invention aims to overcome the shortcomings of existing technologies and provide an adjustable automatic soil sieve.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adjustable automatic soil sieve includes a soil sieve, which includes a screen ring and a screen fixed inside the screen ring. It also includes a crossbeam base, a stirring device, and adjustable clamps. The crossbeam base is a long strip plate. The stirring device is installed on the upper surface of the crossbeam base and is located at the center of the length direction. A guide rail is installed on the lower surface of the crossbeam base. The guide rail is arranged along the length direction of the crossbeam base. At least two adjustable clamps are slidably arranged in the guide rail.

[0007] The design of the guide rail and adjustable clamps allows for adjustable distance between the two adjustable clamps, enabling the clamping of screen rings of different sizes, i.e., the clamping of soil screens of different diameters.

[0008] Furthermore, the adjustable clamp includes a guide rail support, a clamp seat, and clamping plates. One side of the guide rail support has a groove adapted to the guide rail, and the guide rail support is detachably connected to the guide rail through the groove. The clamp seat is connected to the side of the guide rail support opposite to the side with the groove. There are two clamping plates, each with a connecting end and a clamping end. The connecting end of the two clamping plates is hinged in the clamp seat. The two clamping plates are arranged opposite each other, with each side being an arc surface recessed towards the other, forming a cavity between the two arc surfaces for clamping the screen ring. An adjusting bolt for adjusting the distance between the two clamping plates is provided on both clamping plates.

[0009] The adjustable clamp is designed with two clamping plates hinged together. By adjusting the bolts and fixing the distance between the two clamps, it can be used to clamp screen rings of different thicknesses. Combined with the adjustable distance between the two adjustable clamps, it can comprehensively meet the needs of clamping soil screens of different sizes.

[0010] Furthermore, there are two clamping seats, which are arranged parallel to each other and spaced apart on the guide rail support. Each clamping seat has a pin hole. The connecting end of the clamping plate protrudes relative to the clamping plate and is located between the two clamping seats. The corresponding position of the connecting end has a pin hole. The clamping seat and the clamping plate are connected together by inserting a pin into the pin hole of the clamping seat and the connecting end.

[0011] The design of the clamp seat and pin allows the clamping plates to rotate, making the spacing between the clamping plates adjustable. To adjust, loosen the adjusting bolts between the clamping plates, rotate the clamping plates to the appropriate spacing, place the screen ring between the two clamping plates, and tighten the adjusting bolts again to keep the clamping plates fixed.

[0012] Furthermore, the guide rail support is also fixed to the guide rail by bolts.

[0013] Furthermore, the stirring device includes a motor, a motor support, a drive shaft, and a stirring brush. The motor is fixedly connected to the upper surface of the crossbeam base via the motor support. The output shaft of the motor is vertically arranged, and the drive shaft is vertically fixedly connected to the output shaft of the motor. The stirring brush is fixedly connected to the drive shaft. The lower end of the stirring brush is comb-shaped, and the stirring brush is located above the screen and has a gap with the screen.

[0014] The motor drives the stirring brush to stir the soil sample on the screen, which helps the soil sample to spread evenly on the screen and pass through the sieve holes. At the same time, the operation of the motor also has a certain vibration effect on the soil sample, which is also more conducive to the soil sample passing through the sieve. In addition, the drive shaft of different lengths can be replaced to adapt to different soil sieve depths.

[0015] Furthermore, the guide rail is fixedly connected to the lower surface of the beam base by connecting screws.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The adjustable clamp designed in this invention can be used to hold soil sieves of different sizes and thicknesses, making it highly versatile; only the soil sieve needs to be replaced, not the clamp. The mixing device designed in this invention mixes the soil sample above the sieve, making it easier for the soil sample to pass through the sieve. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the adjustable automatic soil sieve.

[0019] Figure 2 is a front view schematic diagram of the adjustable fixture;

[0020] Figure 3 is a side view of the adjustable fixture.

[0021] Figure 4 is a schematic diagram of the guide rail structure;

[0022] Figure 5 is a schematic diagram of the upper surface structure of the beam base;

[0023] Figure 6 is a schematic diagram of the lower surface structure of the beam base;

[0024] Figure 7 is a schematic diagram of the stirring device;

[0025] Figure 8 is an exploded view of the connection structure between the guide rail support and the clamping plate;

[0026] Figure 9 is a structural view of the guide rail support and clamping plate connected together;

[0027] In the diagram: 1-Beam base; 2-Agitator; 3-Adjustable clamp; 4-Soil sieve; 21-Motor; 22-Motor support; 23-Triangular reinforcing rib; 24-Rotating shaft; 25-Reinforcing rib; 26-Agitating brush; 31-Guide rail; 32-Guide rail support; 33-Bolt hole one; 331-Connecting bolt one; 332-Connecting bolt two; 34-Adjusting bolt; 35-Clamping seat; 36-Clamping plate; 37-Bolt hole two; 38-Adjusting nut; 39-Rubber gasket; 41-Screw; 42-Screw ring; 55-Connecting screw one; 56-Connecting screw two; 61-Motor mounting hole one; 62-Motor mounting hole two; 63-Motor mounting hole three; 64-Motor mounting hole four; 65-Threaded hole one; 66-Threaded hole two; 67-Threaded hole three; 68-Threaded hole four; 71-Through hole. Detailed Implementation

[0028] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Embodiments

[0029] In this embodiment, an adjustable clamp is applied to the field of soil screening, forming an adjustable automatic soil screening device, which can also be used in...

[0030] As shown in Figure 1, an adjustable automatic soil sieve includes a crossbeam base 1, a mixing device 2, an adjustable clamp 3, and a soil sieve 4.

[0031] As shown in Figure 5, the crossbeam base 1 is a long strip plate. A through hole 71 is opened at the center of the upper surface of the crossbeam base. Around the through hole 71, there are mounting holes for installing the motor support 22, which are named motor mounting hole one 61, motor mounting hole two 62, motor mounting hole three 63, and motor mounting hole four 64, respectively. As shown in Figure 6, threaded hole one 65 and threaded hole two 66 are opened at the left end of the lower surface of the crossbeam base, and threaded hole three 67 and threaded hole four 68 are opened at the right end of the lower surface of the crossbeam base.

[0032] As shown in Figures 1 and 7, the stirring device 2 includes a motor 21, a motor support 22, a drive shaft 24, and a stirring brush 26. The motor 21 is fixed on the motor support 22, which is provided with triangular reinforcing ribs 23. The motor support 22 has mounting holes that correspond one-to-one with the motor mounting holes on the aforementioned crossbeam base. The motor support 22 is fixed to the upper surface of the crossbeam base 1 with screws. The upper end of the drive shaft 24 is fixed to the output end of the motor, and the lower end of the drive shaft 24 passes through the through hole 71 of the crossbeam base. The lower end of the drive shaft 24 is connected to a cross-shaped stirring brush 26, which is provided with reinforcing ribs 25.

[0033] As shown in Figures 2 and 3, the adjustable clamp 3 includes a guide rail 31, a guide rail support 32, a clamp seat 35, a clamping plate 36, an adjusting bolt 34, and an adjusting nut 38. The guide rail 31 is fixed to both ends of the lower surface of the beam base 1. Taking one end as an example, as shown in Figure 4, connecting screw 1 55 and connecting screw 2 56 pass through threaded holes 1 65 and 2 66 on the lower surface of the beam base, respectively, to fasten the guide rail 31 to the beam base 1. Correspondingly, the other end of the beam base is provided with threaded holes 3 67 and 4 68.

[0034] As shown in Figure 3, the guide rail support 32 has a groove for engaging the guide rail 31. Bolt holes 33 and 37 are located on both sides of the guide rail support 32. Connecting bolts 331 and 332 pass through the corresponding bolt holes, fixing the guide rail support 32 to the guide rail 31. Loosening the connecting bolts allows the guide rail support 32 to slide on the guide rail 31, enabling it to be installed at different positions on the guide rail 31 to accommodate variations in the diameter of the soil sieve.

[0035] As shown in Figures 8 and 9, two clamp seats 35 are fixedly connected to the lower surface of the guide rail support 32. The two clamp seats are arranged in parallel and spaced apart, and two pin holes are opened on each clamp seat.

[0036] Both clamping plate 361 and clamping plate 362 have upwardly protruding connecting ends with pin holes. The connecting ends of the clamping plates are located between two clamping seats. The clamping seats 35 and clamping plates 36 are movably connected by inserting pins 352 and 353 into the pin holes of the clamping seats and connecting ends.

[0037] Both clamping pieces 36 have curved surfaces on their sides that are close to each other, and the curved surfaces of the two clamping pieces 36 form a groove for locking the screen ring 42.

[0038] Both clamping plates 36 have through holes, and an adjusting bolt 34 is connected to both clamping plates through the through holes. A rubber gasket 39 is placed between the adjusting bolt 34 and the clamping plates. Tightening the adjusting bolt 34 will bring the distance between the two clamping plates closer and achieve locking. Conversely, it will increase the distance between the two clamping plates and lock the screen ring 42 between the clamping plates.

[0039] As shown in Figure 1, the soil sieve 4 includes a screen 41 and a screen ring 42. The screen ring is a circular ring structure with the screen inside. The upper end of the screen ring can be locked and fixed with the clamping piece of the adjustable clamp.

[0040] The shape of the soil sieve 4 does not have to be a circular or cylindrical structure as shown in the figure. As long as the internally connected screen mesh can be well matched with the mixing brush and the soil does not easily accumulate in the corners, it is acceptable.

[0041] Assemble the device according to the above structure and connection relationship. Place the device above the collection box, with the top of the collection box open. The device is supported by the crossbeam base 1 at the open top of the collection box, or by other external supports. Pouring soil into the screen, turning on the motor 21, the motor 21 drives the soil brush 26 to rotate and turn the soil through the transmission shaft 24. The vibration of the motor is transmitted to the soil screen 4 through the motor support 22, the crossbeam base 1, and the adjustable clamp 3, causing the soil to vibrate. The path for the upper soil particles to be screened downwards is opened by the vibration. The combined effect of turning and vibration improves the screening efficiency of the soil particles. After screening, the coarser soil particles remaining on the screen 41 are poured out into the waste bin, and then soil is added again.

Claims

1. An adjustable automatic soil sieve, comprising a soil sieve (4), the soil sieve including a screen ring (42) and a screen (41) fixed within the screen ring, characterized in that... It also includes a beam base (1), a stirring device (2) and an adjustable clamp (3). The beam base (1) is a long strip plate. The stirring device (2) is installed on the upper surface of the beam base (1) and located at the center of the length direction. A guide rail is installed on the lower surface of the beam base (1). The guide rail is set along the length direction of the beam base. At least two adjustable clamps (3) are slidably arranged in the guide rail.

2. An adjustable automatic soil sieve according to claim 1, characterized in that... The adjustable clamp (3) includes a guide rail support (32), a clamp seat (35), and clamping plates (36). The guide rail support (32) has a groove adapted to the guide rail on one side, and the guide rail support is detachably connected to the guide rail through the groove. The clamp seat (35) is connected to the side of the guide rail support that is different from the side with the groove. There are two clamping plates (36), each with a connecting end and a clamping end. The connecting end of the two clamping plates is hinged in the clamp seat (35). The two clamping plates (36) are arranged opposite to each other, and each of the opposite sides is an arc surface that is concave to the other side. A cavity for clamping the screen ring (42) is formed between the two arc surfaces. The two clamping plates (36) are provided with an adjusting bolt (34) for adjusting the distance between them.

3. An adjustable automatic soil sieve according to claim 2, characterized in that... There are two clamp seats (35), which are arranged parallel and spaced apart on the guide rail support. Each clamp seat has a pin hole. The connecting end of the clamping plate is raised relative to the clamping plate and is located between the two clamp seats. The corresponding position of the connecting end has a pin hole. The clamp seat and the clamping plate are connected together by inserting a pin into the pin hole of the clamp seat and the connecting end.

4. An adjustable automatic soil sieve according to claim 2, characterized in that... The guide rail support is also fixed to the guide rail by bolts.

5. An adjustable automatic soil sieve according to claim 1, characterized in that... The stirring device (2) includes a motor (21), a motor support (22), a transmission shaft (24), and a stirring brush (26). The motor (21) is fixedly connected to the upper surface of the crossbeam base (1) through the motor support (22). The output shaft of the motor is set vertically. The transmission shaft (24) is fixedly connected to the output shaft of the motor vertically. The stirring brush (26) is fixedly connected to the transmission shaft. The lower end of the stirring brush is comb-shaped. The stirring brush (26) is located above the screen (41) and has a gap with the screen (41).

6. An adjustable automatic soil sieve according to claim 1, characterized in that... The guide rail is fixedly connected to the lower surface of the beam base (1) by connecting screws.

Images