CN219694598U - Spiral type sediment sampling device for hard sediment - Google Patents

Abstract

The utility model discloses a spiral bottom mud sampling device for hard bottom mud, which comprises an outer sampling tube, an inner sampling tube, a soil breaking cutter head, a first handle, a fixing ring, a second handle, a soil breaking outer spiral blade, a bolt, a locking pin and a hinged support. The utility model adopts the design of the inner sampling tube and the outer sampling tube, and the broken outer helical blade of the outer sampling tube is beneficial to the integral screwing of the device into the sediment, thereby reducing the sampling difficulty of the hard sediment; then the inner sampling tube and the mud sample are screwed out through the inner and outer thread structures, and the outer sampling tube left in the soil layer at the moment can be greatly reduced due to the overall weight, so that the difficulty in taking the outer sampling tube out of the soil layer can be effectively reduced; the inner sampling tube adopts a detachable structure, and bottom mud at a corresponding depth position is selected as a sample after being detached, so that investigation requirements are met.

Description

Spiral type sediment sampling device for hard sediment

Technical Field

The utility model belongs to the technical field of sediment sampling devices, and particularly relates to a spiral sediment sampling device for hard sediment.

Background

In the mountain river sediment sampling investigation process, sediment has soft and hard division, and for hard sediment, ordinary tubular sampler is difficult to break into soil layer, even if the sampler is driven into the mud layer by means of a tool, the action of the friction force between the outer wall of the sampler and the mud layer is caused due to the weight of the sediment in the sampler and the weight of the sampler, so that the sampler is very difficult to take out. Therefore, it is necessary to develop a spiral sediment sampling device which is suitable for the use of hard sediment, is convenient for entering a sediment layer and is convenient for taking out.

Disclosure of Invention

The utility model aims to provide a spiral sediment sampling device for hard sediment.

The utility model aims at realizing the method, the method comprises the steps of arranging a broken outer spiral blade on the outer wall of an outer sampling tube from bottom to top, arranging an inner thread on the inner wall of the outer sampling tube, arranging an outer thread on the outer wall of the inner sampling tube, splicing the inner sampling tube by two half tubes left and right, fixing a connecting table at the top end and a connecting table at the bottom end of the two half tubes respectively through bolts, arranging the inner sampling tube in the outer sampling tube, arranging the outer thread of the inner sampling tube in threaded fit with the inner thread of the outer sampling tube, arranging the broken cutter head at the bottom end of the outer sampling tube, arranging the top end of the inner sampling tube higher than the top end of the outer sampling tube, arranging the fixed ring on the top end of the inner sampling tube, downwards extending the edge of the fixed ring to form a buckling edge, buckling the top end of the outer sampling tube from the outer side of the buckling edge, penetrating the buckling edge into the outer sampling tube wall to fix the outer sampling tube and the inner sampling tube together, arranging first handles below the top end of the outer sampling tube respectively, arranging the first handles on the two sides of the handles, and arranging the first handles on the two sides respectively.

Preferably, the outer sampling tube and the inner sampling tube are made of stainless steel, and the stainless steel has high strength, corrosion resistance and long service life.

Preferably, the first handle and the second handle are sleeved with anti-slip sleeves for holding and preventing slipping.

Preferably, the bottom of the hinged support is provided with a limiting plate, so that the second handle can rotate to be horizontal or rotate upwards to be vertical, the second handle is in a vertical state when not in use, and when the second handle is needed to be used, the second handle is pulled downwards and rotated to be horizontal, and the limiting plate is used for limiting rotation of the second handle.

The utility model has the beneficial effects that: the utility model adopts the design of the inner sampling tube and the outer sampling tube, and the broken outer helical blade of the outer sampling tube is beneficial to the integral screwing of the device into the sediment, thereby reducing the sampling difficulty of the hard sediment; then the inner sampling tube and the mud sample are screwed out through the inner and outer thread structures, and the outer sampling tube left in the soil layer at the moment can be greatly reduced due to the overall weight, so that the difficulty in taking the outer sampling tube out of the soil layer can be effectively reduced; the inner sampling tube adopts a detachable structure, and bottom mud at a corresponding depth position is selected as a sample after being detached, so that investigation requirements are met.

Drawings

FIG. 1 is a schematic view of the internal structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;

FIG. 3 is a schematic view showing the structure of the inner sampling tube in use state according to the present utility model;

in the figure: 1-outer sampling tube, 2-inner sampling tube, 3-bit of breaking earth, 4-first handle, 5-fixed ring, 6-second handle, 7-outer helical blade of breaking earth, 8-internal thread, 9-external thread, 10-bolt, 11-locking pin, 12-hinged support.

Detailed Description

The utility model is further described below with reference to examples and drawings, but is not limited in any way, and any changes or substitutions based on the teachings of the utility model are intended to fall within the scope of the utility model.

Example 1

As shown in fig. 1-3, the spiral bottom mud sampling device for hard bottom mud in this embodiment includes an outer sampling tube 1, an inner sampling tube 2, a breaking cutter head 3, a first handle 4, a fixing ring 5, and a second handle 6, wherein the outer wall of the outer sampling tube 1 is provided with a broken outer spiral blade 7 from bottom to top, the inner wall of the outer sampling tube 1 is provided with an inner thread 8, the outer wall of the inner sampling tube 2 is provided with an outer thread 9, the inner sampling tube 2 is formed by splicing two half-tubes left and right, the connecting tables at the top ends of the two half-tubes are respectively fixed by bolts 10, the inner sampling tube 2 is located in the outer sampling tube 1, the outer thread 9 of the inner sampling tube 2 is in threaded fit with the inner thread 8 of the outer sampling tube 1, the breaking cutter head 3 is located at the bottom end of the outer sampling tube 1, the top end of the inner sampling tube 2 is higher than the top end of the outer sampling tube 1, the fixing ring 5 is sleeved and fixed at the top end of the inner sampling tube 2, the edge of the fixing ring 5 extends downwards to form a buckling edge, the top end of the outer sampling tube 1 is buckled by the buckling edge, the top end of the outer sampling tube 1 is respectively by the two half-tubes is respectively fixed by bolts 10, the connecting tables at the bottom ends of the two half-tubes 2 are respectively located at the two sides of the inner side 1 and the inner side 4 and the outer side 1 is respectively provided with the inner handle 4 and the outer handle 2 is located at the two side and the top end of the outer side 1 is respectively fixed by the side and the outer handle 4 and the side is respectively located at the side and 5 side and the side is fixed by the side and the side 1; the outer sampling tube 1 and the inner sampling tube 2 are made of stainless steel; the first handle 4 and the second handle 6 are sleeved with an anti-skid sleeve; the bottom of the hinged support 12 is provided with a limiting plate, so that the second handle 6 can be rotated to be horizontal or rotated upwards to be vertical.

The working principle and the working process of the utility model are as follows: placing the device at a sampling position, holding the first handle 4 by hand and pressing down to continuously rotate the device, wherein the soil breaking tool bit 3 is used for breaking soil and is matched with the outer soil breaking helical blades 7, so that the device is screwed into the bottom mud, and meanwhile, the bottom mud enters the inner sampling tube 2; when the outer sampling tube is taken out, the locking pin 11 is firstly removed, and one hand holds the first handle 4 to fix the outer sampling tube; the other person holds the second handle 6 and rotates the inner sampling tube 2 to enable the inner sampling tube 2 to be screwed out of the outer sampling tube 1 upwards, the worker horizontally places the inner sampling tube 2, removes the bolts 10, opens the inner sampling tube 2, and takes bottom mud with corresponding depth as a sample according to the requirement and bagging; the outer sampling tube 1 positioned in the mud layer is reduced in overall weight, meanwhile, the mud sample is taken out in advance, the difficulty in taking out the outer sampling tube is reduced, and at the moment, the outer sampling tube 1 is screwed out by reverse rotation. After the sampling is finished, the sediment attached to the device is cleaned and the device is assembled together to wait for the next sampling.

Claims (4)

1. The utility model provides a spiral bed mud sampling device for stereoplasm bed mud, includes outer sampling tube (1), interior sampling tube (2), the tool bit that breaks earth (3), first handle (4), solid fixed ring (5), second handle (6), its characterized in that be equipped with outer helical blade (7) that breaks earth from bottom to top outer wall of outer sampling tube (1), outer sampling tube (1) inner wall is equipped with internal thread (8), inner sampling tube (2) outer wall is equipped with external screw thread (9), and interior sampling tube (2) are formed by two half body left and right sides concatenation, and the connecting bench of two half body tops, the connecting bench of bottom are fixed through bolt (10) respectively, interior sampling tube (2) are located outer sampling tube (1), and screw-thread fit between external screw thread (9) and the internal screw thread (8) of outer sampling tube (1) of interior sampling tube (2), the tool bit (3) are located outer sampling tube (1) bottom, interior sampling tube (2) top is higher than outer sampling tube (1) top, gu tie-in that gu fixed ring (5) just detains the top and buckles the top (5) and form the limit and detains the limit from outer side (1) and pass outer side (1), the outer sampling tube (1) and the inner sampling tube (2) are fixed together, the first handles (4) are respectively and fixedly arranged at the two sides of the top end of the outer sampling tube (1), the first handles (4) are positioned below the buckling edge of the fixed ring (5), the two sides of the top end of the inner sampling tube (2) are respectively provided with the second handles (6) through the hinged support (12), and the second handles (6) are positioned above the fixed ring (5).

2. The spiral sediment sampling device for the hard sediment according to claim 1, wherein the outer sampling tube (1) and the inner sampling tube (2) are made of stainless steel.

3. The spiral sediment sampling device for the hard sediment according to claim 1, wherein the first handle (4) and the second handle (6) are sleeved with an anti-skid sleeve.

4. Screw-type sludge sampling device for hard sludge according to claim 1, characterized in that the bottom of the hinged support (12) is provided with a limiting plate enabling the second handle (6) to be turned either horizontally or upwards to be vertical.