An electrically powered ring knife sampling device

Abstract

The utility model discloses a kind of electric ring knife sampling devices, specifically related to soil detection technical field, including electric drill main body, and the connecting rod of electric drill main body output end is installed, connecting rod bottom end is fixedly connected with ring knife, multiple positioning grooves are opened in the outer side of connecting rod, ring knife upper surface is fixedly connected with positioning ring, multiple reinforcing ribs are fixedly connected in the inboard of positioning ring, reinforcing rib bottom is fixedly connected with ring knife upper surface, multiple reinforcing rib one end is fixedly connected with the surface of connecting rod.The utility model utilizes ring to push and provide stable uniform thrust to push link and pressure plate, and the soil sample is ejected from ring knife, the original structure is kept to the maximum limit, the subsequent measurement accuracy and the convenience of repeated sampling efficiency are improved, three spiral pieces generate continuous downward shearing force, combined with multiple cutting teeth preliminary crushing, active cutting ring knife outer wall contact soil, so that ring knife is more smoothly cut into soil with smaller vertical pressure, and the cutting sampling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of soil testing technology, and more specifically, to an electric ring sampler. Background Technology

[0002] Currently, there are two main methods for testing compaction: nuclear density meter and ring sampling. The most commonly used method is ring sampling, which involves excavating a certain volume of soil (including soil particles and interparticle pores) with a ring and measuring the weight of the dried soil by comparing it to the weight of the same volume of water. This is known as "soil bulk density." Soil bulk density can be used to calculate the weight of topsoil and soil porosity over a certain area. It can also be used as one of the indicators of soil maturity. Soils with a higher degree of maturity have a lower bulk density.

[0003] In practical use, after traditional ring samplers are used, it is usually necessary to use tools such as shovels and screwdrivers to poke the soil sample out of the ring sampler from one end. This process can easily cause compression, shearing or vibration to the soil sample, which can damage the original soil structure sampled from the ring sampler, causing cracks or deformation, affecting the efficiency of multiple sampling by the ring sampler and reducing the detection effect of the soil sample. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an electric ring knife sampling device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An electric ring cutter sampling device includes an electric drill body and a connecting rod installed at the output end of the electric drill body. A ring cutter is fixedly connected to the bottom end of the connecting rod. Multiple positioning grooves are formed on the outer side of the connecting rod. A positioning ring is fixedly connected to the upper surface of the ring cutter. Multiple reinforcing ribs are fixedly connected to the inner side of the positioning ring. The bottom of the reinforcing ribs is fixedly connected to the upper surface of the ring cutter. One end of the multiple reinforcing ribs is fixedly connected to the surface of the connecting rod. The multiple reinforcing ribs are arranged in a ring array on the top of the ring cutter. A sampling mechanism is provided on the inner side of the ring cutter. The sampling mechanism includes multiple sliding holes and openings on the surface of the ring cutter. The multiple sliding holes and openings are symmetrically arranged on the surface of the ring cutter with the reinforcing ribs as the center. A connecting rod is slidably connected to the inner side of each of the multiple sliding holes. The bottom end of the connecting rod extends into the inner side of the ring cutter. A push ring is fixedly connected to the top end of the multiple connecting rods. The opening is used to balance the air pressure inside and outside the ring cutter. A pressure plate is fixedly connected to the bottom end of the multiple connecting rods. The outer side of the pressure plate is slidably connected to the inner surface of the ring cutter. The cross-section of the pressure plate is set as conical. A soil breaking mechanism is provided on the outer side of the ring cutter.

[0006] By adopting the above technical solution—pushing the push ring, multiple connecting rods, and pressure plate—soil samples can be pushed from inside the ring cutter outwards, preventing soil samples from getting stuck inside the ring cutter and improving soil sample extraction efficiency.

[0007] As a further description of the above technical solution: the soil breaking mechanism includes multiple cutting teeth I fixedly connected to the bottom end of the ring cutter, and the multiple cutting teeth I are distributed in a ring array along the cutting surface of the bottom end of the ring cutter. Three spiral blades are fixedly connected to the outside of the ring cutter, and the three spiral blades are spirally wound around the outside of the ring cutter. Multiple cutting teeth II are fixedly connected to the bottom of the spiral blades, and the sides of the cutting teeth II are set as inclined surfaces.

[0008] By adopting the above technical solution, the sampling speed is effectively improved by using three spiral blades, multiple cutting teeth, and an inclined surface to form a downward spiral cut into the soil, combined with multiple cutting teeth to enhance the cutting force on the soil.

[0009] The technical effects and advantages of this utility model are as follows: 1. By setting up a sampling mechanism, compared with the existing technology, the push ring pushes the connecting rod and pressure plate to provide a stable and uniform pushing force to the sample, pushing the soil sample out of the ring cutter. This maximizes the preservation of the original structure of the soil sample, maintains the accuracy of subsequent measurements of soil bulk density, porosity and permeability, and improves the efficiency and convenience of repeated soil sampling. 2. By setting up a soil-breaking mechanism, compared with existing technologies, the three spiral blades will generate a continuous downward shearing force, which, combined with the initial crushing of multiple cutting teeth, can actively cut the soil in contact with the outer wall of the ring cutter. This allows the ring cutter to cut into the soil more smoothly with less vertical pressure, thereby improving the efficiency of the ring cutter in soil sampling. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the bottom structure of this utility model.

[0012] Figure 3 This is a front view diagram of the present invention.

[0013] Figure 4 This is a partial schematic diagram of the connection between the tool changer and the connecting rod of this utility model.

[0014] Figure 5 This is a partial schematic diagram of the connection between the connecting rod and the push ring of this utility model.

[0015] Figure 6 This is a partial schematic diagram of the connection between the ring cutter and the cutting teeth of this utility model.

[0016] Figure 7 This is a partial schematic diagram of the connection between the spiral blade and the cutting tooth of this utility model.

[0017] Figure 8 This is a partial schematic diagram of the connection between the ring cutter and the positioning ring of this utility model.

[0018] The attached diagram is labeled as follows: 1. Drill body; 2. Connecting rod; 3. Ring cutter; 4. Positioning ring; 5. Reinforcing rib; 6. Sliding hole; 7. Opening; 8. Connecting rod; 9. Push ring; 10. Pressure plate; 11. Positioning groove; 12. Cutting tooth one; 13. Spiral blade; 14. Cutting tooth two; 15. Inclined surface. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] The embodiments disclosed in this application are as follows: Figures 1-8 An electric ring cutter sampling device is shown, comprising an electric drill body 1 and a connecting rod 2 installed at the output end of the electric drill body 1. A ring cutter 3 is fixedly connected to the bottom end of the connecting rod 2. Multiple positioning grooves 11 are provided on the outer side of the connecting rod 2. A positioning ring 4 is fixedly connected to the upper surface of the ring cutter 3. Multiple reinforcing ribs 5 are fixedly connected to the inner side of the positioning ring 4. The bottom of the reinforcing ribs 5 is fixedly connected to the upper surface of the ring cutter 3. One end of the multiple reinforcing ribs 5 is fixedly connected to the surface of the connecting rod 2. The multiple reinforcing ribs 5 are arranged in a ring array on the top of the ring cutter 3. A sampling mechanism is provided on the inner side of the ring cutter 3. The sampling mechanism includes multiple sliding holes 6 and openings 7 provided on the surface of the ring cutter 3. The multiple sliding holes 6 and openings 7 are all... Reinforcing ribs 5 are symmetrically arranged on the surface of the ring cutter 3. Multiple sliding holes 6 are slidably connected to connecting rods 8. The bottom end of the connecting rods 8 extends into the inner side of the ring cutter 3. Push rings 9 are fixedly connected to the top of the multiple connecting rods 8. Openings 7 are used to balance the air pressure inside and outside the ring cutter 3. Pressure plates 10 are fixedly connected to the bottom of the multiple connecting rods 8, and the outer side of the pressure plates 10 is slidably connected to the inner surface of the ring cutter 3. The cross-section of the pressure plates 10 is set as conical. A soil breaking mechanism is set on the outside of the ring cutter 3. Using the pushable push rings 9, connecting rods 8 and pressure plates 10, a portion of the soil sample that is completely stuck inside the ring cutter 3 can be pushed out. Combined with the knocking and shaking of the ring cutter 3 by the staff, the sample can be removed completely more quickly.

[0021] Reference Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, the soil-breaking mechanism includes multiple cutting teeth 12 fixedly connected to the bottom end of the ring cutter 3, and the multiple cutting teeth 12 are distributed in a ring array along the cutting surface of the bottom end of the ring cutter 3. Three spiral blades 13 are fixedly connected to the outside of the ring cutter 3, and the three spiral blades 13 are spirally wound around the outside of the ring cutter 3. Multiple cutting teeth 14 are fixedly connected to the bottom of the spiral blades 13, and the sides of the cutting teeth 14 are set as inclined surfaces 15. The three spiral blades 13 can cut the soil spirally downwards, so that the ring cutter can cut into the soil smoothly with less vertical pressure, and can better cut towards the soil surface through the multiple cutting teeth 12, cutting teeth 14 and inclined surfaces 15 at the bottom of the ring cutter 3.

[0022] The working principle of this utility model is as follows: When sampling the compacted backfill soil, the connecting rod 2 at the top of the ring cutter 3 is first inserted into the output end of the electric drill body 1 and connected. At the same time, the multiple positioning grooves 11 on the outside of the connecting rod 2 are used to lock it with the output end of the electric drill body 1. Then, the electric drill body 1 is started to drive the output end to rotate the connecting rod 2 and the ring cutter 3. The ring cutter 3 drives multiple cutting teeth 12 to rotate and cut the soil surface. The ring cutter 3 utilizes a ring array distributed on the outer side of three spiral blades 13, multiple cutting teeth 14 fixed to the bottom of the spiral blades 13, and an inclined surface 15 to further cut into the soil cutting surface. The inclined surface 15 and the spiral arrangement of the spiral blades 13 allow for spiral downward cutting into the soil. When sampling the soil, the ring cutter 3, combined with the downward pressure applied by the operator to the drill body 1 and the ring cutter 3, ensures complete penetration into the soil. It is noteworthy that when the soil sample enters the ring cutter 3, the air inside is compressed by the sample and discharged outwards through multiple openings 7 on the upper surface of the ring cutter 3, maintaining air pressure balance inside and outside the ring cutter 3. Simultaneously, the sample compresses and pushes the lower surface of the pressure plate 10, causing the pressure plate 10 to move upwards along the sliding holes 6 with multiple connecting rods 8, thus completing the soil sampling by the ring cutter 3. The ring cutter 3, carrying the sample, is then removed from the soil. The push ring 9 is pushed to one side of the ring cutter 3, and the pressure plate 10 is pushed inside the ring cutter 3 through multiple connecting rods 8. The pressure plate 10 pushes the sample from the top of the sample through its conical bottom end. Then the sample is pushed outward from inside the ring cutter 3, loosening the sample from the ring cutter 3 and allowing it to extend a certain distance. Finally, the staff can shake and tap the outer wall of the ring cutter 3 to remove the sample relatively intact from inside the ring cutter 3 for subsequent sample testing.

[0023] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0024] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electric ring cutter sampling device, comprising an electric drill body (1) and a connecting rod (2) installed at the output end of the electric drill body (1), characterized in that: The bottom end of the connecting rod (2) is fixedly connected to a ring cutter (3). Multiple positioning grooves (11) are provided on the outer side of the connecting rod (2). A positioning ring (4) is fixedly connected to the upper surface of the ring cutter (3). Multiple reinforcing ribs (5) are fixedly connected to the inner side of the positioning ring (4). The bottom of the reinforcing ribs (5) is fixedly connected to the upper surface of the ring cutter (3). One end of the multiple reinforcing ribs (5) is fixedly connected to the surface of the connecting rod (2). The multiple reinforcing ribs (5) are arranged in a ring array on the top of the ring cutter (3). A sample dispensing mechanism is provided on the inner side of the ring cutter (3). The sample dispensing mechanism includes multiple sliding holes (6) and openings (7) on the surface of the ring cutter (3), and the multiple sliding holes (6) and openings (7) are symmetrically arranged on the surface of the ring cutter (3) with the reinforcing rib (5) as the center. The outer side of the ring cutter (3) is provided with a soil breaking mechanism.

2. The electric ring cutter sampling device according to claim 1, characterized in that: Multiple sliding holes (6) are slidably connected to connecting rods (8) on their inner sides, with the bottom end of the connecting rods (8) extending inside the ring cutter (3).

3. The electric ring cutter sampling device according to claim 2, characterized in that: Push rings (9) are fixedly connected to the top of multiple connecting rods (8), and the openings (7) are used to balance the air pressure inside and outside the ring cutter (3).

4. The electric ring cutter sampling device according to claim 2, characterized in that: Multiple connecting rods (8) are fixedly connected to pressure plates (10) at their bottom ends, and the outer side of the pressure plate (10) is slidably connected to the inner surface of the ring cutter (3). The cross section of the pressure plate (10) is set as conical.

5. The electric ring cutter sampling device according to claim 1, characterized in that: The soil breaking mechanism includes multiple cutting teeth (12) fixedly connected to the bottom end of the ring cutter (3), and the multiple cutting teeth (12) are distributed in a ring array along the bottom cutting surface of the ring cutter (3).

6. The electric ring sampler according to claim 1, characterized in that: Three spiral blades (13) are fixedly connected to the outside of the ring cutter (3), and the three spiral blades (13) are spirally wound around the outside of the ring cutter (3).

7. The electric ring sampler according to claim 6, characterized in that: The bottom of the spiral blade (13) is fixedly connected with a plurality of cutting teeth (14), and the side of the cutting teeth (14) is set as an inclined surface (15).

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