Sludge sampling suite

Abstract

The utility model relates to a sludge sampling suite which comprises a sampling tube, a fixing sleeve and an outer lining tube, a plurality of sampling holes are formed in the sampling tube, a lower end head is arranged at the lower end of the sampling tube, the outer diameter of the lower end head is larger than that of the sampling tube, the outer lining tube is sleeved outside the sampling tube and located above the lower end head, and the outer lining tube is arranged on the fixing sleeve. A connector is arranged at the upper end of the sampling tube, a threaded part is arranged on the periphery of the sampling tube and below the connector, a fixing sleeve is arranged outside the threaded part, and the fixing sleeve is detachably fixed at the threaded part through a threaded structure. The device is simple in structure, complete samples can be obtained, the samples cannot be mixed under the action of external force, and especially under the condition that the upper layer is thin and the water content is high, and under the condition that the sample state is not influenced, the samples can be sampled layer by layer and then analyzed, so that the sample detection result is more accurate.

Description

Technical Field

[0001] This utility model relates to the field of water body silt sampling technology, and in particular to a silt sampling kit. Background Technology

[0002] In water bodies such as lakes, rivers, and reservoirs, bottom silt is typically a mixture of clay, sand, organic matter, and various minerals, formed over a long period through physical, chemical, and biological processes and water transport. This silt can affect water quality, riverbed stability, and the ecological environment. By testing the pollutant content in the silt, its impact on the water body and surrounding environment can be assessed, thereby enabling the development of appropriate remediation measures.

[0003] There are currently two main methods for sampling silt from water bodies. One method involves using a grab sampler to collect the silt and then testing it. Grab samplers are suitable for collecting silt with a relatively soft surface. The other method uses a columnar silt sampler, where the sampling tube is inserted into the silt, and then the upper layer of soft silt is removed from the deeper, harder silt. The silt remains in a stratified state within the sampler, but it tends to disperse easily when separated after extraction. There is also another type of sampler, such as the one with authorization announcement number CN 118168852. Patent document B describes a method for sampling underwater silt, comprising a sampling tube and an operating rod. The upper end of the sampling tube has a mounting base for mounting the operating rod, and the sampling tube extends vertically. The operating rod includes a rod body, a piston, and a handheld component. The piston is located at the lower end of the rod body, and the handheld component is located at the upper end. The mounting base includes a seat body and a mounting plate. The seat body is connected to the upper end of the sampling tube, and the mounting plate is located at the upper end of the seat body and spaced apart from it, forming a vent. The mounting plate has a first threaded hole, and the rod body has a threaded portion on the upper part of the piston, which is threadedly connected to the first threaded hole. The lower end of the sampling tube has a connector for insertion into the underwater silt, and the connector contains a sample collection component for collecting silt samples. The piston pushes the sample out into the silt sample collection component.

[0004] It has the following drawbacks: although the sampling is relatively complete and the lower sample can be pushed into the sample collection device step by step, the piston squeezes the sludge in the sampling tube, which will squeeze the soft sludge with higher water content in the upper layer. The water is squeezed into the lower sludge, and water-soluble substances will also diffuse downward, resulting in unsatisfactory stratification detection results. Summary of the Invention

[0005] To overcome the aforementioned shortcomings, the purpose of this utility model is to provide a sludge sampling kit.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a sludge sampling kit, including a sampling tube, a fixing sleeve, and an outer liner tube. The sampling tube is provided with multiple sampling holes, and the lower end of the sampling tube is provided with a lower end head. The outer diameter of the lower end head is larger than the outer diameter of the sampling tube. The sampling tube is covered with an outer liner tube, which is located above the lower end head. The upper end of the sampling tube is a connector. The outer periphery of the sampling tube is provided with a threaded part below the connector head. The fixing sleeve is provided outside the threaded part. The fixing sleeve is detachably fixed to the threaded part by the threaded structure.

[0007] Specifically, the sampling holes are uniformly arranged along the axial direction of the sampling tube.

[0008] Specifically, the lower end face of the lower end head is configured as a ring blade.

[0009] Specifically, the sampling tube is wrapped with a sealing film, and the outer liner is sleeved on the outside of the sealing film.

[0010] Specifically, it also includes a sampling bottle, the bottom of which is provided with a limiting hole, the limiting hole having a polygonal cross-section.

[0011] Specifically, it also includes a limiting end, the cross-section of which has the same shape as the cross-section of the limiting hole and is matched with the limiting hole.

[0012] Specifically, one end of the limiting end is provided with a handle, and a hexagonal reinforcing member is provided between the limiting end and the handle.

[0013] Specifically, a baffle is provided between the limiting end and the hexagonal reinforcing member.

[0014] The beneficial effects of this utility model are as follows: This utility model has a simple structure, can obtain complete samples, and the samples will not be mixed under the action of external force, especially when the upper layer is thinner and has a higher water content. Then, it can take samples layer by layer without affecting the sample state, and then perform analysis, making the sample detection results more accurate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the sampling tube structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the sample tube and its matching sampling handle in another embodiment of the present invention.

[0018] In the figure, 1 is the sampling tube, 101 is the connector, 102 is the threaded part, 103 is the sampling hole, 2 is the fixing sleeve, 3 is the outer liner, 4 is the lower end, 401 is the ring blade, 5 is the sample tube, 501 is the limiting hole, 6 is the wrench, 601 is the handle, 602 is the six-sided reinforcement, and 603 is the baffle. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] Example 1

[0021] like Figure 1 , 2 The sludge sampling kit shown includes a sampling tube 1, a fixing sleeve 2, and an outer liner tube 3. The sampling tube 1 has multiple sampling holes 103. The lower end of the sampling tube 1 has a lower end head 4, the outer diameter of which is larger than the outer diameter of the sampling tube 1. The sampling tube 1 is covered with an outer liner tube 3, the outer diameter of which is equal to or slightly smaller than the outer diameter of the lower end head 4. The outer end head 4 serves as a limiting device. The outer liner tube is located above the lower end head 4. The upper end of the sampling tube 1 is a connector 101. The outer periphery of the sampling tube 1, below the connector 101, has a threaded portion 102. The threaded portion 102 is covered with a fixing sleeve 2, which is detachably fixed to the threaded portion 102 by means of a threaded structure.

[0022] Specifically, the sampling holes 103 are uniformly arranged along the axial direction of the sampling tube 1.

[0023] Specifically, the lower end face of the lower end head 4 is designed as a ring blade, which facilitates cutting through silt or soil layers when pressed downwards, thereby reducing drilling resistance.

[0024] Specifically, in order to be suitable for relatively thin sludge, when the outer liner tube 3 is removed, the sample will not flow out from the sampling hole 102. The sampling tube 1 is wrapped with a sealing film, and the outer liner tube 3 is wrapped outside the sealing film. It can be wrapped with plastic wrap or other thermoplastic film and heated and wrapped, depending on the state of the sample to be taken.

[0025] Its working principle is as follows: During sampling, the outer liner tube 3 is inserted from the top of the sampling tube 1, located above the lower end 4. The fixing sleeve 2 is then put on and tightened onto the threaded part 102. The outer liner tube 3 is pressed between the lower end 4 and the fixing sleeve 2, so that the outer liner tube 3 can block the sampling hole 103, preventing the silt and soil samples inside from leaking out during and after the sampling process. Then, the connector 101 is connected to the operating rod or an existing gasoline or electric motor for applying downward force or impact. The operating rod can be an existing cross-shaped operating rod, which is existing technology and will not be described in detail. Then, the operation is carried out in a conventional manner, inserting it downward into the silt. In order to overflow excess water, a water outlet can be provided at the connector of the sampling tube 1. After inserting to a predetermined depth, it is rotated upward while being lifted out. After being lifted out, the sampling tube 1 is removed, and the connector 101 is sealed with a sealing cap.

[0026] Note that during transport, samples with a thinner upper layer should be placed vertically to prevent mixing. Once the samples are transferred to the appropriate sampling bottle, remove the fixing sleeve 2, lift the outer liner tube upwards, insert the sample bottle into the sampling hole 103, and take samples layer by layer. Of course, if there is a sealing film, you can also directly puncture the sealing film with the sample bottle to take samples without damaging the samples. When the sampling tube 1 and the outer liner tube 3 are made of transparent material, the state of each layer of sample can also be observed.

[0027] Example 2

[0028] like Figure 3 The sludge sampling kit shown also includes a sampling bottle 5, the bottom of which is provided with a limiting hole 501. The limiting hole 501 has a polygonal cross-section, preferably hexagonal, and is suitable for conventional hexagonal wrenches.

[0029] Specifically, it also includes a limiting end 6, the cross-section of which is the same as the cross-sectional shape of the limiting hole 501. It is used in conjunction with the limiting hole 501 and can be inserted into the limiting hole 501 to facilitate applying pressure to the sampling tube 5. One end of the limiting end 6 is provided with a handle 601. A hexagonal reinforcing member 602 is provided between the limiting end 6 and the handle 601. The hexagonal reinforcing member can be adapted to existing hexagonal wrenches. When it is necessary to forcefully insert it into the sample, the relevant tool can be used to apply force. A baffle 603 is provided between the limiting end 6 and the hexagonal reinforcing member 602 to prevent the sample from overflowing and contaminating the operator.

[0030] This utility model is not limited to the described embodiments. Anyone should know that any structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

[0031] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A sludge sampling kit, characterized in that: The device includes a sampling tube, a fixing sleeve, and an outer liner. The sampling tube has multiple sampling holes and a lower end with a lower head. The outer diameter of the lower end is larger than the outer diameter of the sampling tube. The sampling tube is fitted with an outer liner above the lower end. The upper end of the sampling tube is a connector. The outer circumference of the sampling tube below the connector has a threaded portion. A fixing sleeve is fitted outside the threaded portion. The fixing sleeve is detachably fixed to the threaded portion by a threaded structure.

2. The sludge sampling kit according to claim 1, characterized in that: The sampling holes are evenly arranged along the axial direction of the sampling tube.

3. The sludge sampling kit according to claim 1, characterized in that: The lower end face of the lower end head is designed as a ring blade.

4. A sludge sampling kit according to claim 1, characterized in that: The sampling tube is wrapped with a sealing film, and the outer liner is sleeved on the outside of the sealing film.

5. A sludge sampling kit according to claim 1, characterized in that: It also includes a sampling bottle, the bottom of which is provided with a limiting hole, the limiting hole having a polygonal cross-section.

6. A sludge sampling kit according to claim 1, characterized in that: It also includes a limiting end, the cross-section of which has the same shape as the cross-section of the limiting hole and is matched with the limiting hole.

7. A sludge sampling kit according to claim 6, characterized in that: One end of the limiting end is provided with a handle, and a hexagonal reinforcing member is provided between the limiting end and the handle.

8. A sludge sampling kit according to claim 7, characterized in that: A baffle is provided between the limiting end and the hexagonal reinforcing member.

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