Thin-wall sleeve stratified sampling device for glacier accumulated snow

Abstract

The utility model belongs to the technical field of sampling equipment, and provides a glacier accumulated snow thin-wall sleeve stratified sampling device, which comprises an outer cylinder, an inner cylinder, an inner cylinder and a sampling device, the sampling pipes are arranged in the outer cylinder, sampling cavities are defined in the sampling pipes, the sampling pipes are fixed relative to the outer cylinder during sampling, and the sampling cavities are communicated with the sampling openings in a one-to-one correspondence manner; the cover plate is movably connected to the outer cylinder, one end of the cover plate is fixedly connected with a driving lever, and the cover plate is matched with the driving lever so as to plug or communicate the sampling port relative to the outside; the sampling knife is fixedly connected to one side of the sampling opening, and when the outer cylinder rotates, the sampling knife plays a guiding role from the sampling opening to the sampling cavity. The sampling device is convenient for personnel to perform stratified sampling, and the sampling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sampling equipment technical field especially, it relates to a glacier snow thin wall sleeve layered sampling device. BACKGROUND

[0002] Glacier snow can record rich paleoclimate and paleohydrological process because of long time in low temperature environment, at present, mainly adopt section excavation to carry out exploitation, but glacier snow has the characteristics of layered deposition, thereby leading to the snow sample between section collection easy to produce confusion, therefore need to use layered sampling device.

[0003] And the layered sampling device for glacier snow adopted in the prior art still has certain use defects, such as in the patent no. CN114509300A, a layered sampling device for glacier snow thin wall sleeve, the push hand is used to push the baffle, the baffle slides on the inner cylinder wall and closes the bottom of the inner cylinder, so that after the inner cylinder is inserted into the snow layer, the baffle is used to separate the inner cylinder, and the layered collection of snow sample is realized, but the lower layer is generally high-hardness ice structure after long time deposition of glacier snow, so when the inner cylinder is inserted into the snow layer, the high-hardness snow will not be convenient for personnel to close the bottom of the inner cylinder by pushing the baffle, and the sampling efficiency is affected. Therefore, a layered sampling device is urgently needed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a layered sampling device for glacier snow thin wall sleeve to solve the above problems, facilitate personnel to carry out layered sampling and improve sampling efficiency.

[0005] To achieve the above object, the utility model provides the following scheme: a layered sampling device for glacier snow thin wall sleeve, comprising:

[0006] The outer cylinder is provided with a plurality of sampling ports in the side wall surface from top to bottom;

[0007] A plurality of sampling tubes are arranged in the outer cylinder and have sampling cavities defined therein, the sampling tubes are fixed relative to the outer cylinder during sampling, and the sampling cavities are in one-to-one correspondence with the sampling ports and are in communication therewith;

[0008] A cover plate is movably connected to the outer cylinder, one end of the cover plate is fixedly connected with a lever, and the cover plate cooperates with the lever to block or communicate the sampling ports relative to the outside;

[0009] A sampling knife is fixedly connected to one side of the sampling port, and when the outer cylinder rotates, the sampling knife forms a guiding effect from the sampling port to the sampling cavity.

[0010] Preferably, a sliding groove is formed in the side wall of the outer cylinder, and the cover plate and the lever are slidably connected in the sliding groove.

[0011] Preferably, the top end of the lever extends out of the outer cylinder and is fixed with a knob, and the side wall surface of the knob is provided with anti-skid lines.

[0012] Preferably, a plurality of the cover plates and the levers are provided, and the plurality of the cover plates and the levers are fixed in sequence from top to bottom, and one cover plate and one lever cooperate to block or communicate one sampling port.

[0013] Preferably, the top end of the sampling tube is provided with a threaded groove, and the bottom end is fixed with a screw rod, and two adjacent sampling tubes are threadedly connected through the threaded groove and the screw rod.

[0014] Preferably, the utility model also comprises:

[0015] A limiting column is fixed to the inner wall surface of the outer cylinder away from the sampling port, and the outer side wall of the sampling tube is provided with a limiting groove, and the limiting column and the limiting groove are slidably connected, and during sampling, the limiting column and the limiting groove cooperate to fix the sampling tube relative to the outer cylinder.

[0016] Preferably, one end of the sampling knife is fixed to the inner wall surface of the sampling port, and the other end of the sampling knife extends outwardly in a direction away from the sampling port, and the part of the sampling knife extending out of the sampling port is provided with sawteeth.

[0017] Preferably, the utility model also comprises:

[0018] A drill bit is arranged at the bottom end of the outer cylinder and is welded to the outer cylinder.

[0019] Compared with the prior art, the utility model has the following advantages and technical effects:

[0020] The utility model discloses a plurality of sampling ports are arranged on the side wall surface of the outer cylinder from top to bottom, the sampling tubes are arranged in the outer cylinder, and the side of the sampling tube is provided with an opening, so that the sampling cavities of the plurality of sampling tubes are communicated with the plurality of sampling ports one by one, in addition, the cover plate is movably connected to the outer cylinder, the lever fixed to the cover plate is convenient for the sampler to control the cover plate, and the blocking or communicating state of the sampling port is switched, when the outer cylinder is inserted into the snow sample layer, the sampling port is blocked by the cover plate, so that the snow samples of different layers are prevented from mixing with each other and entering the sampling cavity, after the outer cylinder reaches the sampling depth, the cover plate is opened to sample, so that the sampling cavities correspond to the snow samples of different layers for collection, and finally, the cover plate blocks the sampling port before the outer cylinder is taken out, so that the stratified sampling effect is effectively guaranteed, and during the sampling process, the sampling knife is fixed to the side of the sampling port, the outer cylinder is rotated to utilize the sampling knife to provide the guiding effect from the sampling port to the sampling cavity, so that the deposited ice layer is crushed and sampled, and the sampling efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only illustrate some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative labor.

[0022] Fig. 1 It is a connection relationship diagram of the outer cylinder and the sampling cavity.

[0023] Fig. 2 It is a position relationship diagram of the cover plate and the sampling tube.

[0024] Fig. 3 It is a position relationship diagram of the sampling knife and the sampling tube.

[0025] 1, outer cylinder; 2, sampling tube; 3, cover plate; 4, lever; 5, sampling knife; 6, lever block; 7, screw rod; 8, limiting column; 9, sawtooth; 10, drill bit; 11, support ring; 12, handle. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative labor are within the scope of protection of the present application.

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0028] Embodiment: Refer to Figs. 1-3 A layered sampling device for glacial snow thin-wall casing, comprising:

[0029] The outer cylinder 1 has a plurality of sampling ports arranged in the side wall surface from top to bottom.

[0030] A plurality of sampling tubes 2 are arranged in the outer cylinder 1 and define a sampling cavity inside, wherein the sampling tube 2 is fixed relative to the outer cylinder 1 during sampling, and the sampling cavity is in one-to-one correspondence with the sampling port.

[0031] The cover plate 3 is movably connected to the outer cylinder 1, and one end of the cover plate 3 is fixedly connected with the lever 4, and the cover plate 3 cooperates with the lever 4 to block or communicate the sampling port relative to the outside.

[0032] The sampling knife 5 is fixedly connected to one side of the sampling port, and when the outer cylinder 1 rotates, the sampling knife 5 forms a guiding effect from the sampling port to the sampling cavity.

[0033] The utility model discloses a plurality of sampling ports are set up from top to bottom on the lateral surface of the outer cylinder 1, the sampling tube 2 is arranged in the outer cylinder 1, and the lateral surface of the sampling tube 2 is provided with an opening, so that the sampling cavities of the plurality of sampling tubes 2 are communicated with the plurality of sampling ports one by one, in addition, the outer cylinder 1 is movably connected with the cover plate 3, the cover plate 3 is controlled by the push rod 4 fixedly connected with the cover plate 3, and the plugging or communication state of the sampling port is switched, when the outer cylinder 1 is inserted into the snow sample layer, the sampling port is plugged by the cover plate 3, so that the snow samples of different layers are prevented from mixing and entering the sampling cavity, after the outer cylinder 1 reaches the sampling depth, the cover plate 3 is opened to sample, and the sampling cavities correspond to the snow samples of different layers for collection, and finally the cover plate 3 is plugged to the sampling port before the outer cylinder 1 is taken out, so that the stratified sampling effect is effectively guaranteed, and the sampling efficiency is improved by fixing the sampling knife 5 on one side of the sampling port and rotating the outer cylinder 1 to provide the guiding effect from the sampling port to the sampling cavity.

[0034] Further, the sliding groove is set up in the lateral wall of the outer cylinder 1, and the cover plate 3 and the push rod 4 are slidably connected in the sliding groove.

[0035] The sliding groove is set up in the lateral wall of the outer cylinder 1, the cover plate 3 is adjusted by the staff to plug or communicate the sampling port, the sampling efficiency is improved, and the obstruction caused by external factors when the cover plate 3 is adjusted is reduced.

[0036] Further, the top end of the push rod 4 is provided with the push block 6 fixedly connected with the outer cylinder 1, and the lateral surface of the push block 6 is provided with anti-skid lines.

[0037] The top end of the push rod 4 is fixedly connected with the push block 6, and the cover plate 3 is adjusted and controlled by the staff outside the snow layer when the outer cylinder 1 is inserted into the snow layer.

[0038] Further, the cover plate 3 and the push rod 4 are provided with a plurality of cover plates 3 and push rods 4, and the plurality of cover plates 3 and push rods 4 are fixedly connected from top to bottom, wherein one cover plate 3 and one push rod 4 cooperate to plug or communicate one sampling port.

[0039] Correspondingly, the cover plate 3 and the push rod 4 are provided with a plurality of sampling ports one by one, and the two ends of the push rod 4 except the uppermost push rod 4 are fixedly connected with the adjacent cover plate 3, and only the uppermost push rod 4 is fixedly connected with the push block 6 outside the outer cylinder 1, when the staff rotates the push block 6, the cover plate 3 slides along the sliding groove, and the communication or plugging of the sampling port is adjusted and controlled.

[0040] Further, the top end of the sampling tube 2 is provided with a threaded groove, and the bottom end is fixedly connected with the screw rod 7, and the adjacent two sampling tubes 2 are threadedly connected through the threaded groove and the screw rod 7.

[0041] The top end of the sampling pipe 2 is provided with a threaded groove, and the bottom end is fixedly connected with a screw rod 7, so that two adjacent sampling pipes 2 can be detachably connected at the top and the bottom, the number of samples is controlled, the outer cylinder 1 with a corresponding length is selected according to different stratification requirements, and the sampling pipes 2 with a corresponding number of sampling ports are connected at the top and the bottom, and then are placed in the outer cylinder 1 to sample, so that the convenience in the sampling process is enhanced.

[0042] Further, it further comprises:

[0043] The limiting column 8 is fixedly connected to the inner wall of the outer cylinder 1 away from the sampling port, and the outer side wall of the sampling pipe 2 is provided with a limiting groove, and the limiting column 8 is slidably connected with the limiting groove. During sampling, the limiting column 8 cooperates with the limiting groove to fix the sampling pipe 2 relative to the outer cylinder 1.

[0044] The limiting column 8 fixedly connected to the inner wall of the outer cylinder 1 limits and fixes the plurality of sampling pipes 2, so that the sampling cavity can be connected with the sampling port, and when the outer cylinder 1 is rotated for sampling, the sampling pipe 2 moves relatively with the outer cylinder 1, so that the collection effect of the snow sample is guaranteed.

[0045] Further, one end of the sampling knife 5 is fixedly connected to one side of the inner wall of the sampling port, and the other end of the sampling knife 5 extends outwardly and obliquely away from the sampling port. The part of the sampling knife 5 extending out of the sampling port is provided with a sawtooth 9.

[0046] The sawtooth 9 is arranged on the side of the sampling knife 5 extending out of the outer cylinder 1. When the outer cylinder 1 is rotated, the sampling knife 5 scrapes the snow layer, so that the snow sample is separated and enters the sampling cavity along the oblique sampling knife 5, the collection of the snow sample is completed, and after the collection is completed, the sampling port is blocked by the cover plate 3, so that the sampling effect is guaranteed, and the sampling of the hard ice layer is facilitated, and the sampling efficiency is improved.

[0047] Further, it further comprises:

[0048] The drill bit 10 is arranged at the bottom end of the outer cylinder 1 and is welded with the outer cylinder 1.

[0049] It can be understood that the support ring 11 is fixedly connected to the outer side wall of the bottom of the outer cylinder 1, and the handle 12 is fixedly connected to the opposite sides of the support ring 11, so that the personnel can rotate the outer cylinder 1 for sampling.

[0050] The working process of the embodiment is as follows:

[0051] When the snow layer is hard, the sampling hole is drilled by using a drilling machine or manually, the outer cylinder 1 is inserted into the sampling hole, the cover plate 3 covers the sampling port during the process to prevent the snow sample from entering the sampling cavity, then when sampling, the staff drives the cover plate 3 to slide along the sliding groove by driving the push block 6, so that the sampling port is communicated with the outside, then the outer cylinder 1 is rotated along the direction of the sawtooth 9 of the sampling cutter 5 to crush the ice structure existing in the snow layer, the collected snow sample is put into the sampling cavity, finally the push block 6 is pushed to make the cover plate 3 block the sampling port, then the outer cylinder 1 is taken out to complete the layered sampling.

[0052] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0053] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application should fall within the protection scope of the present application.

Claims

1. A layered sampling device for glacial snow thin-walled casing, characterized in that, Include: The outer tube (1), the side wall surface is opened in turn from top to bottom with several sampling ports; Several sampling tubes (2) are arranged in the outer tube (1), and the inside is limited to have a sampling cavity, when sampling, the sampling tube (2) is fixed relative to the outer tube (1), the sampling cavity is communicated with the sampling port one by one; The cover plate (3) is movably connected to the outer tube (1), one end of the cover plate (3) is fixedly connected with the lever (4), the cover plate (3) cooperates with the lever (4) to block or communicate the sampling port relative to the outside; The sampling knife (5) is fixed on one side of the sampling port, and when the outer tube (1) rotates, the sampling knife (5) is formed with the guiding effect from the sampling port to the sampling cavity.

2. The glacial snow thin-walled casing stratigraphic sampling device according to claim 1, characterized in that: The outer tube (1) is provided with a sliding groove in the side wall, and the cover plate (3) and the lever (4) are slidably connected in the sliding groove.

3. The glacial snow thin-walled casing stratigraphic sampling device of claim 1, wherein: The top end of the lever (4) extends out of the outer tube (1) and is fixedly connected with a lever block (6), and the side wall surface of the lever block (6) is provided with anti-skid lines.

4. The glacial snow thin-walled sleeve stratigraphic sampling device of claim 1, wherein: The cover plate (3) and the lever (4) are provided with a plurality of cover plates (3) and levers (4), and a plurality of cover plates (3) and levers (4) are fixed from top to bottom, wherein one cover plate (3) and one lever (4) cooperate to block or communicate one sampling port.

5. The glacial snow thin-walled sleeve stratigraphic sampling device of claim 1, wherein: The top end of the sampling tube (2) is provided with a threaded groove, and the bottom end is fixedly connected with a screw rod (7), and the adjacent two sampling tubes (2) are threadedly connected through the threaded groove and the screw rod (7).

6. The glacial snow thin-walled sleeve stratigraphic sampling device of claim 1, wherein, Also include: The limiting column (8) is fixedly connected to the inner wall surface of the outer tube (1) away from one side of the sampling port, the outer side wall of the sampling tube (2) is provided with a limiting groove, the limiting column (8) is slidably connected with the limiting groove, and during sampling, the limiting column (8) cooperates with the limiting groove to fix the sampling tube (2) relative to the outer tube (1).

7. The glacial snow thin-walled sleeve stratigraphic sampling device of claim 1, wherein: One end of the sampling knife (5) is fixedly connected with one side of the inner wall surface of the sampling port, the other end of the sampling knife (5) extends outwardly along the direction away from the sampling port, and the part of the sampling knife (5) extending out of the sampling port is provided with a sawtooth (9).

8. The glacial snow thin-walled sleeve stratigraphic sampling device of claim 1, wherein, Also include: The drill bit (10) is arranged at the bottom end of the outer tube (1) and is welded with the outer tube (1).

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