Portable sediment water sample and wetland interstitial water in-situ collection device

Abstract

The utility model discloses a portable sediment water sample and wetland interstitial water in-situ collection device, which belongs to the technical field of water sample collection and comprises a sampling barrel and sampling holes uniformly arranged on the circumferential surface of the sampling barrel, and a conical water storage drill bit is mounted at the bottom end of the sampling barrel in a threaded manner. A sealing mechanism composed of the sleeve, the through hole, the spring and the pull rope is arranged in the sampling barrel, the sampling hole can be blocked before the sampling barrel is fed to a designated position, when the sampling barrel reaches the designated position, the sleeve is pulled upwards through the pull rope, the through hole is aligned with the sampling hole, sampling operation is completed, the sampling result is more accurate, and the sampling efficiency is improved. Through a downward inserting structure composed of the sliding sleeve, the screw rod, the sliding rod, the positioning screw and the cross rod, the downward inserting depth of the sampling barrel can be adjusted in the using process, using is more convenient, and the sliding sleeve is installed through the screw rod, can be rapidly disassembled and assembled and is more convenient to carry.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of collection devices, in particular to portable sediment water sample, wetland interstitial water in situ collection device, belong to water sample collection technical field. BACKGROUND

[0002] In wetland ecosystem research, wetland interstitial water and sediment water sample contain a large amount of key information, interstitial water is the medium of exchange of sediment and overlying water body, and its chemical composition (such as nutrient salt, heavy metal ion, etc.) can reflect the ecological process of wetland, for example, the change of nitrogen and phosphorus content in interstitial water has important indicative effect on wetland plant growth and water eutrophication, sediment water sample also contains information such as microbial community and organic pollutants, which is very important for studying the health status, biodiversity and ecological function of wetland ecosystem.

[0003] The prior art such as the utility model with the application number 201920223770.0 discloses a kind of overlying water, interstitial water and sediment synchronous sampler, to solve the problem that the structure of bottom mud layer is damaged in the process of obtaining sample, thereby leading to inaccurate test results, limited by conditions such as hardness, viscosity or water depth of bottom mud, when bottom mud is too hard, too sticky or water depth is too deep, sampling cannot be completed, the sampling device can collect overlying water, interstitial water and sediment of different depths at the same point simultaneously, and does not damage the structure of bottom mud layer, providing effective data for bottom mud pollution data analysis.

[0004] There are still deficiencies in the above-mentioned application:

[0005] Although one-way rubber sheet is used to prevent the outflow of sampling water during sampling, but after the device is inserted into water, the water sample will directly extrude the one-way rubber sheet into the inside of the sampling main pipe, resulting in inaccurate sampling results, and the whole device is long and not easy to disassemble and assemble, and is not convenient to carry, in addition, after sampling, subsequent filtration and cleaning are still needed, and the sampling water cannot be directly utilized, so the practicability is low.

[0006] Therefore, portable sediment water sample, wetland interstitial water in situ collection device is designed to optimize the above problems. UTILITY MODEL CONTENTS

[0007] The main purpose of the utility model is to provide portable sediment water sample, wetland interstitial water in situ collection device to solve the problems raised in the above background.

[0008] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0009] The utility model provides a portable sediment water sample, wetland interstice water in situ collection device, including sampling bucket and the even sampling hole that opens on the circumference of sampling bucket, the bottom end of sampling bucket is screw -threaded and is installed with conical water storage drill bit, the inner top of conical water storage drill bit is equipped with filter screen, the inside of sampling bucket is equipped with sealing mechanism who blocks sampling hole, the middle position of sampling bucket top is equipped with down insertion mechanism, one side of sampling bucket top is equipped with sampling pipe, and the bottom end of sampling pipe extends to the inside of conical water storage drill bit, the top of sampling pipe is installed with sampling bottle, the side of sampling bottle is installed with vacuum pump, and the input of vacuum pump is communicated with sampling bottle.

[0010] Preferably, the sealing mechanism comprises a sleeve, a through hole, a spring and a pull rope, the sleeve is vertically slidably arranged in the inside of the sampling bucket, the outside of the sleeve is attached to the inside of the sampling bucket, the sleeve is uniformly provided with the through hole matched with the sampling hole, the top of the sleeve is provided with the spring between the inside top of the sampling bucket, the inside of the sleeve is fixed with the pull rope, and the top of the pull rope extends above the sampling bucket.

[0011] Preferably, the top of the pull rope is fixed with a pull ring, and the top of the sampling bucket is provided with a rubber sealing plug at the pull rope penetrating area.

[0012] Preferably, the inside of the sampling bucket is uniformly provided with a sealing ring along the circumference, and the sealing ring is located between adjacent sampling holes.

[0013] Preferably, the down insertion mechanism comprises a sliding sleeve, a screw rod, a sliding rod and a positioning screw, the screw rod is fixed at the middle position of the top of the sampling bucket, the sliding sleeve is screw -threaded on the screw rod, the sliding rod is vertically slidably arranged in the inside of the sliding sleeve, and the top of the outside of the sliding sleeve is provided with the positioning screw.

[0014] Preferably, the outside of the sliding rod is provided with a scale line along the vertical direction, and the shape of the sliding rod is a quadrangular prism.

[0015] Preferably, the top of the sliding rod is vertically provided with a horizontal rod, and the sliding rod and the horizontal rod form a T shape.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1. The sealing mechanism composed of the sleeve, the through hole, the spring and the pull rope is arranged in the inside of the sampling bucket, so that the sampling hole can be blocked before the sampling bucket is sent to the specified position, the sleeve is pulled up by the pull rope when reaching the specified position, the through hole is aligned with the sampling hole, the sampling operation is completed, and the sampling result is more accurate.

[0018] 2. The down insertion mechanism composed of the sliding sleeve, the screw rod, the sliding rod, the positioning screw and the horizontal rod can adjust the depth of the sampling bucket during use, is more convenient to use, and the sliding sleeve is installed by the screw rod, so that it can be quickly disassembled and carried more conveniently.

[0019] 3. The utility model discloses a sampling barrel is provided with the conical water storage drill bit at the bottom end, and the top of conical water storage drill bit is equipped with the filter screen, and the sampling tube is inserted to the inside of conical water storage drill bit, can directly filter water sample in the process of sampling, improved the functionality of device, in addition, the conical water storage drill bit can be dismantled, and it is more convenient to clean. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 It is the sampling barrel expansion structure diagram of the utility model;

[0022] Figure 3 It is the sampling barrel expansion structure diagram of the utility model;

[0023] Figure 4 It is the sampling barrel expansion structure diagram of the utility model.

[0024] In the drawing: 1, sampling barrel;

[0025] 2, sampling hole;

[0026] 3, conical water storage drill bit;

[0027] 4, filter screen;

[0028] 5, lower insertion mechanism; 501, sliding sleeve; 502, screw rod; 503, sliding rod; 504, positioning screw; 505, cross bar;

[0029] 6, sealing mechanism; 601, sleeve; 602, through hole; 603, spring; 604, pull rope;

[0030] 7, sampling tube; 8, sampling bottle; 9, vacuum pump. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment.

[0032] Therefore, the following detailed description of the embodiment of the utility model is not intended to limit the scope of the claimed utility model, but only represents some embodiments of the utility model. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the utility model protection.

[0033] It should be noted that the embodiments in the utility model and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0034] It should be noted that similar reference numerals and letters refer to similar items throughout the accompanying drawings, and thus, once an item is defined in one drawing, it is not necessary to further define and explain it in subsequent drawings.

[0035] In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly used when the product is used, or the orientation or position relationship commonly understood by those skilled in the art, and such terms are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0036] Embodiment 1

[0037] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the present embodiment proposes a portable sediment water sample, wetland interstitial water in-situ collection device, which comprises a sampling barrel 1 and a sampling hole 2 uniformly opened on the circumferential surface of the sampling barrel 1, and a conical water storage drill bit 3 is threadedly installed at the bottom end of the sampling barrel 1, a filter screen 4 is arranged at the inner top of the conical water storage drill bit 3, a sealing mechanism 6 is arranged in the sampling barrel 1 to block the sampling hole 2, a lower insertion mechanism 5 is arranged at the middle position of the top end of the sampling barrel 1, a sampling tube 7 is arranged at one side of the top of the sampling barrel 1, the bottom end of the sampling tube 7 extends into the inside of the conical water storage drill bit 3, a sampling bottle 8 is installed at the top end of the sampling tube 7, a vacuum pump 9 is installed at the side of the sampling bottle 8, and the input end of the vacuum pump 9 is in communication with the sampling bottle 8.

[0038] During sampling, a lower insertion mechanism 5 with a proper length is selected according to the sampling depth, the lower insertion mechanism 5 is installed at the top end of the sampling barrel 1, the conical water storage drill bit 3 is installed at the bottom end of the sampling barrel 1, the bottom end of the sampling tube 7 is in communication with the inner bottom of the conical water storage drill bit 3, the top end of the sampling tube 7 is connected with the sampling bottle 8, and the sampling bottle 8 is connected with the vacuum pump 9, the assembly of the device is completed, the sampling barrel 1 is vertically inserted into the sampling position, the sealing mechanism 6 blocks the sampling hole 2 during the insertion process, when the sampling position is reached, the sealing state of the sampling hole 2 is released, the vacuum pump 9 is started to generate negative pressure in the inside of the sampling bottle 8, the liquid in the sampling area enters into the inside of the sampling barrel 1 through the sampling hole 2, and is then filtered by the filter screen 4 and sucked into the inside of the sampling bottle 8 by the sampling tube 7 for storage.

[0039] Embodiment 2

[0040] The scheme in embodiment 1 is further introduced in combination with specific working modes, and details are described as follows:

[0041] As shown in Figure 2 and Figure 3 , as a preferred embodiment, on the basis of the above mode, further, the sealing mechanism 6 comprises a sleeve 601, a through hole 602, a spring 603 and a pull rope 604, the sleeve 601 is vertically slidingly arranged in the inside of the sampling barrel 1, the outside of the sleeve 601 is attached to the inside of the sampling barrel 1, the sleeve 601 is uniformly provided with the through hole 602 matched with the sampling hole 2, the top end of the sleeve 601 is provided with the spring 603 between the inside top of the sampling barrel 1, and the inside of the sleeve 601 is fixed with the pull rope 604, and the top end of the pull rope 604 extends to the upper side of the sampling barrel 1.

[0042] In the initial state, the sleeve 601 is attached to the top end of the conical water storage drill bit 3, at this time, the spring 603 is in the compressed state to limit the position of the sleeve 601, and the through hole 602 is misaligned with the sampling hole 2, in the process of inserting the sampling barrel 1 downward, the water sample will not directly enter the inside of the sampling barrel 1, when reaching the sampling position, at this time, the sleeve 601 is pulled upward through the pull rope 604, the through hole 602 is aligned with the sampling hole 2, at this time, the water sample at the fixed depth can enter the inside of the sampling barrel 1.

[0043] As shown in Figure 1 , as a preferred embodiment, on the basis of the above mode, further, the top of the pull rope 604 is fixed with a pull ring, and the rubber sealing plug is arranged at the top of the sampling barrel 1 at the pull rope 604 penetration area, the use of the pull ring can facilitate the pulling of the pull rope 604, and the use of the rubber sealing plug at the top end of the sampling barrel 1 can ensure the sealing effect of the sampling barrel 1.

[0044] As shown in Figure 3 , as a preferred embodiment, on the basis of the above mode, further, the inside of the sampling barrel 1 is uniformly provided with a sealing ring in the circumferential direction, and the sealing ring is located between adjacent sampling holes 2, the use of the sealing ring can ensure the sealing effect between the sampling barrel 1 and the sleeve 601.

[0045] As shown in Figure 4 , as a preferred embodiment, on the basis of the above mode, further, the downward insertion mechanism 5 comprises a sliding sleeve 501, a screw rod 502, a sliding rod 503 and a positioning screw 504, the screw rod 502 is fixed at the middle position of the top of the sampling barrel 1, the sliding sleeve 501 is threadedly installed on the screw rod 502, the sliding rod 503 is vertically slidingly installed in the inside of the sliding sleeve 501, and the positioning screw 504 is installed at the top outside of the sliding sleeve 501.

[0046] In use, the slide sleeve 501 is selected according to the length, and in use, the slide rod 503 is controlled to slide in the slide sleeve 501, the length of the lower inserting mechanism 5 is adjusted, the position of the slide rod 503 is fixed by the positioning screw 504, the slide rod 503 is pressed when the sampling bucket 1 is controlled to move downward, and the sampling bucket 1 is driven to move downward.

[0047] As shown in Figure 4 , as a preferred embodiment, on the basis of the above mode, further, the outer side of the slide rod 503 is provided with scale lines in the vertical direction, and the shape of the slide rod 503 is quadrangular prism, the use of the scale lines can facilitate the adjustment of the extension length of the slide rod 503, and the quadrangular prism shape of the slide rod 503 can ensure the stable control of the rotation of the sampling bucket 1.

[0048] As shown in Figure 4 , as a preferred embodiment, on the basis of the above mode, further, the top end of the slide rod 503 is vertically provided with a cross rod 505, and the slide rod 503 and the cross rod 505 are in T shape, the use of the cross rod 505 can facilitate the control of the downward movement and lifting of the sampling bucket 1.

[0049] Example 3

[0050] The schemes in examples 1 and 2 will be further introduced in combination with specific working modes, and details are described below:

[0051] When sampling, the lower insertion mechanism 5 of a proper length is selected according to the sampling depth, then the bottom end of the sliding sleeve 501 is installed on the screw rod 502 at the top end of the sampling barrel 1, then the sliding rod 503 is controlled to slide in the inside of the sliding sleeve 501 according to the sampling depth, the using length of the lower insertion mechanism 5 is adjusted, then the position of the sliding rod 503 is fixed by the positioning screw 504, then the conical water storage drill bit 3 is installed at the bottom end of the sampling barrel 1, the bottom end of the sampling tube 7 is communicated with the inner bottom of the conical water storage drill bit 3, the top end of the sampling tube 7 is connected with the sampling bottle 8, the sampling bottle 8 is connected with the vacuum pump 9, the assembly of the device is completed, the sampling barrel 1 is vertically inserted into the sampling position, the hand exerts pressure on the top of the horizontal rod 505, the horizontal rod 505 can be controlled to rotate, the sampling barrel 1 is driven to rotate and move downward, so as to quickly reach the sampling depth, in the process of downward insertion, the lower sleeve 601 is attached to the top end of the conical water storage drill bit 3, at this time, the spring 603 is in the compressed state, the position of the sleeve 601 is limited, and the through hole 602 is misaligned with the sampling hole 2, the water sample cannot directly enter the inside of the sampling barrel 1, when reaching the sampling position, the sleeve 601 is pulled upward by the pull rope 604, the through hole 602 is aligned with the sampling hole 2, at this time, the water sample at the fixed depth can enter the inside of the sampling barrel 1, the vacuum pump 9 is started to generate negative pressure in the inside of the sampling bottle 8, the liquid at the sampling area enters the inside of the sampling barrel 1 through the sampling hole 2, and is sucked to the inside of the sampling bottle 8 after being filtered by the filter screen 4.

[0052] The above merely illustrates the further embodiments of the present application, but the protection scope of the present application is not limited to this, any skilled person in the technical field can make equivalent replacement or change according to the technical scheme and concept of the present application within the disclosed range, which belongs to the protection scope of the present application.

Claims

1. A portable in-situ sampling device for sediment water samples and wetland interstitial water, comprising a sampling bucket (1) and sampling holes (2) uniformly opened on the circumferential surface of the sampling bucket (1), characterized in that: A conical water storage drill bit (3) is threaded at the bottom of the sampling bucket (1). A filter screen (4) is provided at the top of the conical water storage drill bit (3). A sealing mechanism (6) for sealing the sampling hole (2) is provided inside the sampling bucket (1). A downward insertion mechanism (5) is provided at the middle position of the top of the sampling bucket (1). A sampling tube (7) is provided on one side of the top of the sampling bucket (1), and the bottom end of the sampling tube (7) extends into the interior of the conical water storage drill bit (3). A sampling bottle (8) is installed at the top of the sampling tube (7). A vacuum pump (9) is installed on the side of the sampling bottle (8), and the input end of the vacuum pump (9) is connected to the sampling bottle (8).

2. The portable in-situ collection device for sediment water samples and wetland interstitial water according to claim 1, characterized in that: The sealing mechanism (6) includes a sleeve (601), a through hole (602), a spring (603), and a pull rope (604). The sleeve (601) is vertically slidably disposed inside the sampling barrel (1). The outer side of the sleeve (601) is in contact with the inner side of the sampling barrel (1). The sleeve (601) is evenly provided with through holes (602) that cooperate with the sampling hole (2). A spring (603) is provided between the top of the sleeve (601) and the inner top of the sampling barrel (1). A pull rope (604) is fixed on the inner side of the sleeve (601), and the top of the pull rope (604) extends to the top of the sampling barrel (1).

3. The portable in-situ collection device for sediment water samples and wetland interstitial water according to claim 2, characterized in that: A pull ring is fixed to the top of the pull rope (604), and a rubber sealing plug is provided at the top of the sampling bucket (1) where the pull rope (604) passes through.

4. The portable in-situ collection device for sediment water samples and wetland interstitial water according to claim 3, characterized in that: The inner side of the sampling bucket (1) is uniformly provided with sealing rings along the circumference, and the sealing rings are located between adjacent sampling holes (2).

5. The portable in-situ collection device for sediment water samples and wetland interstitial water according to claim 4, characterized in that: The lower insertion mechanism (5) includes a sliding sleeve (501), a screw (502), a sliding rod (503), and a positioning screw (504). The screw (502) is fixed at the middle position of the top of the sampling barrel (1). The sliding sleeve (501) is threaded on the screw (502). The sliding rod (503) is vertically slidably installed inside the sliding sleeve (501). The positioning screw (504) is installed at the top of the outer side of the sliding sleeve (501).

6. The portable in-situ collection device for sediment water samples and wetland interstitial water according to claim 5, characterized in that: The slide rod (503) has scale lines on its outer side along the vertical direction, and the slide rod (503) is a quadrangular prism.

7. The portable in-situ collection device for sediment water samples and wetland interstitial water according to claim 6, characterized in that: A crossbar (505) is vertically installed at the top of the slide rod (503), and the slide rod (503) and the crossbar (505) form a T-shape.

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