CN207516063U - A kind of device for cutting ring sampling - Google Patents

Abstract

The utility model provides a device for sampling with a ring knife, which comprises a base, a handle, a pressing arm, a spring piece, a cylindrical soil cutting knife, a cartridge and a platform-shaped support. The base is respectively connected to the front end of the handle and the pressing arm through rivets. The rear end of the handle is mechanically connected; the handle is provided with a raised part on the part in contact with the pressing arm, and a chute is provided on the center line of the middle and rear part of the pressing arm, and the raised part on the handle can slide along the chute on the pressing arm The front end of the spring piece is fixed in the pressing arm, and the end of the spring piece touches the raised reaction platform at the rear of the base, but is not fixed; both the cylinder cutting knife and the cartridge are fixedly connected with the pressing arm through threads, and the lower end of the cartridge is fixed with a The ring-shaped permanent magnet, the outer wall of the cartridge and the inner wall of the cylinder cutting knife just have no contact and the two can slide up and down relative to each other; the platform-shaped bracket is mechanically fixedly connected by three parts: the upper ring, the side column and the lower ring. The utility model has simple device, convenient and safe operation, can save time and effort, and save cost.

Description

A device for ring knife sampling

technical field

The utility model relates to the field of geotechnical experiment research equipment, in particular to a device for sampling with a ring knife.

Background technique

Some properties of soil, such as bulk density, water content, density, porosity and water characteristic curve, play an important role in the study of soil science. The ring knife is often used to prepare soil samples in soil engineering tests. Generally, the edge of the ring knife is placed on the soil body, and the ring knife is pressed vertically downward with a hand or a hammer to make it enter the soil, and then it is taken out with a soil knife The excess soil around and above and below was cut off to prepare a ring knife soil sample for the test. However, if you encounter hard soil, it will take time and effort to press the ring knife; when using a hammer to press the ring knife, it is easy to hit the soil and interfere with the soil structure; improper operation can easily cause hand injuries; manual removal of excess soil Time-consuming and labor-intensive; and it is difficult to ensure that the ring cutter is evenly stressed around the ring cutter when pressing the ring cutter with hands.

Contents of the invention

The technical problem to be solved by the utility model is to provide a device for sampling with a ring knife, which can save time and effort, and safely cut out a standard ring knife soil sample.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a device for sampling ring knife, including the following components:

The base, the front part of the base is wider than the rear part, the center of the rectangular platform in front of the base is provided with an annular shallow groove, and the rear part of the base is provided with a raised reaction platform;

The handle, the front end of the handle is mechanically connected to the front part of the base through the first rivet, the handle can rotate around the first rivet, and the handle is provided with a raised part on the part in contact with the pressing arm;

Pressing arm, the rear end of the pressing arm is mechanically connected with the rear end of the base through the second rivet, and the pressing arm can rotate around the second rivet. The side wall of the cylindrical soil cutting knife position is provided with internal threads, and the center line of the middle and rear part of the pressing arm is provided with a chute;

The spring piece, the front end of the spring piece is fixed in the pressing arm, and the end of the spring piece touches the raised reaction platform at the rear of the base, but is not fixed;

Cylindrical soil cutting knife, the upper end of the cylindrical soil cutting knife is provided with an external thread, which is fixedly connected to the pressure arm through the internal thread of the cylindrical soil cutting knife position on the pressure arm;

Card cartridge, the upper end of the cartridge is provided with an external thread, which is fixedly connected to the pressing arm through the internal thread of the card position on the upper end of the pressing arm, and the lower end of the cartridge is fixed with a ring-shaped permanent magnet. Contact and the two can slide up and down relative to each other;

The platform-shaped support includes an upper ring, a side column and a lower ring, and the upper ring, the side columns and the lower ring are mechanically fixedly connected together in sequence.

In a preferred solution, the protruding part of the handle slides along the sliding groove on the pressing arm.

In a preferred solution, the rear part of the pressing arm is arc-shaped.

In the preferred solution, the cartridge and the cylinder cutter are made of transparent materials with certain strength and rigidity.

In the preferred solution, the cylindrical soil cutting knife is thin-walled cylindrical, the inner diameter of the cylindrical soil cutting knife is slightly larger than the outer diameter of the cartridge, and the lower end of the cylindrical soil cutting knife has a cutting edge similar to a ring knife.

In the preferred solution, the annular permanent magnet fixes the hollow cylinder and the standard ring cutter through magnetic adsorption, and both the hollow cylinder and the standard ring cutter can be manually installed and disassembled.

In a preferred solution, the inner diameter of the standard ring cutter is the same as the inner diameter of the cartridge, and the outer diameter of the standard ring cutter is slightly smaller than the outer diameter of the cartridge.

In the preferred scheme, the hollow cylinder is a variable cross-section cylinder, the upper end of the hollow cylinder is not sealed, and the outer diameter of the upper end is the same as the outer diameter of the standard ring cutter; the lower end of the hollow cylinder is sealed, and the outer diameter of the lower end is slightly smaller than the inner diameter of the standard ring cutter. Small.

In the preferred solution, the inner wall at the end of the upper ring is provided with a groove, the width of which is the same as the wall thickness of the standard ring cutter, which can be used to place the standard ring cutter with soil samples, but will not block the soil samples in the standard ring cutter from being hollowed out. Cylinder ejected.

In the preferred solution, when taking out the soil sample in the standard ring cutter, the lower ring of the platform-shaped support is put into the shallow groove of the base for positioning and placing the platform-shaped support; the diameter of the lower ring of the platform-shaped support is smaller than that of the upper ring. The diameter of the ring is large.

The utility model has the following beneficial effects:

1) Through the handle, using the principle of leverage, it saves effort when pressing the ring knife into the soil;

2) When pressing the ring knife into the soil sample, the hand does not directly touch the sharper ring knife, which is safer;

3) When pressing the ring knife sample, the cylindrical soil cutting knife can cut off the excess soil around the ring knife, reducing part of the labor of manually cutting off the excess soil;

4) The ring knife is fixed by the magnetic suction of the cartridge, and when the ring knife is pressed down, the force around the ring knife can be guaranteed to be even;

5) The whole device is simple and practical.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the schematic diagram of the overall device of the present utility model (when pressing the ring knife sample).

Fig. 2 is a schematic diagram of the overall device of the present utility model (when taking out the ring knife sample).

Fig. 3 is a schematic plan view of the base of the present invention.

Fig. 4 is a schematic top view of the handle of the present invention.

Fig. 5 is a schematic top view of the pressing arm of the present invention.

Fig. 6 is a longitudinal sectional view showing the relative positions of the cartridge, the cylinder cutter and the ring cutter of the utility model.

Fig. 7 is a schematic longitudinal sectional view of a hollow cylinder of the present invention.

Fig. 8 is a schematic diagram of the relative positions of the platform-shaped support of the present invention and the ring knife with the soil sample.

In the figure: base 1, handle 2, pressing arm 3, spring leaf 4, cylinder cutter 5, cartridge 6, hollow cylinder 7, platform-shaped support 8, first rivet 9, second rivet 9', Reaction table 10, raised part 11, chute 12, shallow groove 13, cartridge position 14, cylinder cutter position 15, upper ring 16, side column 17, lower ring 18, annular permanent magnet 19, Standard ring knife 20.

Detailed ways

Referring to Fig. 1 ~ 8, a kind of device that is used for ring knife sampling comprises following parts:

Base 1, the front of the base 1 is wider than the rear, a shallow circular groove 13 is provided in the center of the front rectangular platform of the base 1, and a raised counter force platform 10 is provided at the rear of the base 1, and the counter force platform 10 is a spring leaf 4 Provide a position of force, which is convenient for the pressing arm 3 to bounce up after the soil sample is pressed by the ring knife, and return to its original shape;

The handle 2, the front end of the handle 2 is mechanically connected with the front part of the base 1 through the first rivet 9, the handle 2 can rotate around the first rivet 9, and the handle 2 is provided with a raised part 11 on the position in contact with the pressing arm 3, the convex The space occupied by the lifting part 11 is small;

Pressing arm 3, the rear end of pressing arm 3 is mechanically connected with the rear end of base 1 through second rivet 9', pressing arm 3 can rotate around the second rivet 9', and the front end of pressing arm 3 is provided with a cartridge position 14 and a round The cylinder cutter position 15, the cartridge position 14 and the side wall of the cylinder cutter position 15 are provided with internal threads, and the center line of the rear part of the pressing arm 3 is provided with a chute 12;

The spring piece 4, the front end of the spring piece 4 is fixed in the pressure arm 3, the end of the spring piece 4 touches the raised counter force platform 10 at the rear of the base 1, but it is not fixed, when the handle 2 is pressed, the pressure arm 3 will withstand the spring piece 4 Press down, and when you let go, the pressing arm 3 will return to its original position synchronously when the spring leaf 4 recovers;

Cylindrical soil cutting knife 5, the upper end of cylindrical soil cutting knife 5 is provided with external thread, and is fixedly connected with pressing arm 3 through the internal thread of cylindrical soil cutting knife position 15 on pressing arm 3;

Cartridge 6, the upper end of the cartridge 6 is provided with an external thread, and the internal thread of the card cartridge position 14 on the pressing arm 3 is fixedly connected with the pressing arm 3, and the lower end of the cartridge 6 is fixed with an annular permanent magnet 19, and the outer wall of the cartridge 6 is connected to the The inner wall of the cylinder soil cutting knife 5 just has no contact and the two can slide up and down relatively;

The platform-shaped support 8, the platform-shaped support 8 includes an upper ring 16, a side column 17 and a lower ring 18, and the upper ring 16, the side columns 17 and the lower ring 18 are sequentially mechanically fixedly connected together.

In a preferred solution, when the handle 2 is pressed, the raised portion 11 on the handle 2 will slide downward around the first rivet 9 along the chute 12 of the pressing arm 3 , and at the same time press down the pressing arm 3 .

In a preferred solution, the rear part of the pressing arm 3 is arc-shaped.

In the preferred scheme, the cartridge 6 and the cylindrical soil cutting knife 5 adopt transparent materials with certain strength and rigidity, which is convenient for observing the situation that the soil sample is pressed into the standard ring knife 20 when the standard ring knife 20 is sampling, and will bear higher pressure pressure.

In the preferred scheme, the cylinder soil cutting knife 5 is thin-walled cylindrical, and the cylinder soil cutting knife 5 inner diameter is slightly larger than the outer diameter of the cartridge 6, and the lower end of the cylinder soil cutting knife 5 has a cutting edge similar to a ring knife.

In a preferred solution, the annular permanent magnet 19 fixes the hollow cylinder 7 and the standard ring cutter 20 through magnetic adsorption, and the hollow cylinder 7 and the standard ring cutter 20 can be installed and disassembled manually.

In the preferred solution, the inner diameter of the standard ring cutter 20 is the same as the inner diameter of the cartridge 6, the outer diameter of the standard ring cutter 20 is slightly smaller than the outer diameter of the cartridge 6, the inner diameter of the standard ring cutter 20 is 61.8mm, and the height is 20mm.

In the preferred scheme, the hollow cylinder 7 is a cylinder with variable cross-section, and the upper end of the hollow cylinder 7 is not sealed, and the outer diameter of the upper end is the same as that of the standard ring cutter 20; the lower end of the hollow cylinder 7 is sealed, and the outer diameter of the lower end is smaller than that of the standard ring cutter The inner diameter of 20 is slightly smaller, and the hollow cylinder 7 is used to push out the soil sample downwards when taking out the soil sample in the ring cutter, which is convenient for taking out the soil sample.

In the preferred scheme, the inner wall at the end of the upper ring 16 is provided with a groove, and the width of the groove is the same as the standard ring cutter 20 wall thickness, which can be used to put the standard ring cutter 20 with soil samples, but can not block the standard ring cutter 20. The soil sample is pushed out by the hollow cylinder 7 .

In the preferred scheme, when taking out the soil sample in the standard ring cutter 20, the lower ring 18 of the platform-shaped support is put into the shallow groove 13 of the base, and is used for positioning and placing the platform-shaped support 8; the lower ring of the platform-shaped support The diameter of 18 is larger than the diameter of upper ring 16, so that the soil sample in the standard ring cutter 20 is ejected by hollow cylinder 7 and then falls onto base 1.

As shown in Figure 1, when pressing the ring knife soil sample, the working principle and process of the utility model are as follows:

1) Twist the cartridge 6 to the cartridge position 14 to fix it through the thread;

2) Twist the cylindrical soil cutting knife 5 to the cylindrical soil cutting knife position 15 and fix it;

3) Fix the standard ring knife 20 through the ring-shaped permanent magnet 19 at the lower end of the cartridge 6;

4) Place the roughly flattened soil on the upper and lower sides on the rectangular platform at the front of the base 1;

5) Press the handle 2 to press down the pressing arm 3, so that the standard ring knife 20 is pressed into the soil through the cartridge 6, and the cylindrical soil cutting knife 5 will also cut off the standard ring knife 20 when it is pressed into the soil. The redundant soil body around ring knife 20. When pressing the handle 2, pay attention to observe the situation of the soil pressing into the standard ring knife 20 through the transparent cartridge position and the soil cutting knife. When the soil pressed into the standard ring knife 20 meets the test requirements, stop pressing the handle 2 hard, then The pressing arm 3 and the handle 2 will return to their original positions synchronously when the leaf spring 4 recovers.

As shown in Figure 2, when taking out the soil sample in the ring cutter, the working principle and process of the present utility model are as follows:

1) Twist the cartridge 6 to the cartridge position 14 to fix it through the thread;

2) Place the platform-shaped bracket 8 in the shallow annular groove 13 of the base 1;

3) put the standard ring cutter 20 with the soil sample in the groove of the upper ring 16 of the platform-shaped support 8;

4) Fix the upper end of the hollow cylinder 7 without a bottom cover through the ring-shaped permanent magnet 19 at the lower end of the cartridge 6;

5) Press the handle 2 to press down the pressing arm 3, and press the hollow cylinder 7 to the soil sample in the standard ring knife 20 through the cartridge 6, thereby ejecting the soil sample in the standard ring knife 20.

Above-mentioned embodiment is only the preferred technical scheme of the present utility model, and should not be considered as the restriction to the present utility model, and the protection scope of the present utility model should be the technical solution described in the claims, including the technology in the technical solution described in the claims. An equivalent alternative to the feature is the scope of protection. That is, equivalent replacement and improvement within this scope are also within the protection scope of the present utility model.

Claims (10)

1. a kind of device for cutting ring sampling, it is characterized in that including with lower component：

Pedestal（1）, pedestal（1）Forepart it is wider than rear portion, pedestal（1）Forepart rectangle Platform center is equipped with the shallow grooves of annular （13）, pedestal（1）Rear portion is equipped with the counter-force platform of protrusion（10）；

Handle（2）, handle（2）Front end and pedestal（1）Forepart pass through the first rivet（9）Mechanical connection, handle（2）It can be around One rivet（9）Rotation, handle（2）With pressure arm（3）The position of contact is equipped with projection portion（11）；

Pressure arm（3）, pressure arm（3）Rear end and pedestal（1）Rear end pass through the second rivet（9’）Mechanical connection, pressure arm（3）It can be around Second rivet（9’）Rotation, pressure arm（3）Front end be equipped with card cylinder position（14）Native cutter spacing is cut with cylinder（15）, card cylinder position（14）And circle Cylinder cuts native cutter spacing（15）Side wall is equipped with internal thread, pressure arm（3）The center line of middle and back is equipped with sliding slot（12）；

Spring leaf（4）, spring leaf（4）Front end is fixed on pressure arm（3）It is interior, spring leaf（4）End contacts pedestal（1）Rear portion protrusion Counter-force platform（10）, but be not fixed；

Cylinder cuts native knife（5）, cylinder cuts native knife（5）Upper end is equipped with external screw thread, passes through pressure arm（3）Upper cylinder cuts native cutter spacing（15）'s Internal thread and pressure arm（3）It is fixedly connected；

Card cylinder（6）, card cylinder（6）Upper end is equipped with external screw thread, passes through pressure arm（3）Upper card cylinder position（14）Internal thread and pressure arm（3）Gu Fixed connection, card cylinder（6）Lower end is fixed with annular permanent magnet（19）, card cylinder（6）Outer wall and cylinder cut native knife（5）Inner wall just without It contacts and the two opposite can slide up and down；

Stage body shape stent（8）, stage body shape stent（8）Including upper ring（16）, lateral column（17）With lower ring（18）, upper ring（16）, lateral column （17）With lower ring（18）It is mechanically fixed and links together successively.

2. a kind of device for cutting ring sampling according to claim 1, it is characterized in that：The handle（2）Lug boss Point（11）Along pressure arm（3）On sliding slot（12）It slides.

3. a kind of device for cutting ring sampling according to claim 1, it is characterized in that：The pressure arm（3）Middle and back In arc line shaped.

4. according to a kind of device for cutting ring sampling described in claim 1, it is characterized in that：The card cylinder（6）It is cut with cylinder Native knife（5）Using the transparent material with some strength and rigidity.

5. a kind of device for cutting ring sampling according to claim 1, it is characterized in that：The cylinder cuts native knife（5） For thin-wall circular tubular, cylinder cuts native knife（5）Interior diameter is slightly larger than card cylinder（6）Overall diameter, cylinder cuts native knife（5）Lower end have class It is similar to the cutting edge of cutting ring.

6. a kind of device for cutting ring sampling according to claim 1, it is characterized in that：The annular permanent magnet（19） Pass through magnetic absorption fixation hollow cylinder（7）With standard cutting ring（20）, hollow cylinder（7）With standard cutting ring（20）It can hand Dynamic installation and removal.

7. a kind of device for cutting ring sampling according to claim 6, it is characterized in that：The standard cutting ring（20）'s Interior diameter and card cylinder（6）Interior diameter it is identical, standard cutting ring（20）Overall diameter be slightly less than card cylinder（6）Overall diameter.

8. a kind of device for cutting ring sampling according to claim 6, it is characterized in that：The hollow cylinder（7） For variable cross-section cylinder, hollow cylinder（7）Upper end not back cover, upper end overall diameter and standard cutting ring（20）Overall diameter it is identical； Hollow cylinder（7）Lower end back cover, the overall diameter of lower end is than standard cutting ring（20）Interior diameter it is smaller.

9. a kind of device for cutting ring sampling according to claim 6, it is characterized in that：The upper ring（16）In end Wall is equipped with groove, recess width and standard cutting ring（20）Wall thickness is identical, and the standard cutting ring of soil sample is carried available for shelving（20）.

10. a kind of device for cutting ring sampling according to claim 6, it is characterized in that：Taking out standard cutting ring（20） In soil sample when, the lower ring of stage body shape stent（18）It is put into the shallow grooves of pedestal（13）It is interior, place stage body shape stent for positioning （8）；Ring under stage body shape stent（18）Diameter than upper ring（16）Diameter it is big.