CN207280810U - A kind of lake sediment gap laden water collecting device - Google Patents

Abstract

The utility model provides a lake sediment gap water collection device, which includes a protection mechanism, a collection mechanism, a casing, a collection handle, a collection rod, a collection cylinder, a guide head and a liquid discharge hole; the protection mechanism is sleeved on the collection mechanism. External; the protection mechanism includes a pressing handle and a casing; the pressing handle is fixedly welded to both sides of the top of the casing; the collection mechanism includes a collection handle, a collection rod, a collection tube and a guide head; the collection handle It is fixedly welded on the top of the collection rod; a collection hole is opened on the side wall of the collection tube close to the top. The utility model adopts a plug-in automatic collection method to collect interstitial water, which can collect interstitial water in a deep area without digging a pit, and significantly reduces the labor load compared with the method of digging a pit for collection. The interstitial water collection device of the utility model has a double-layer structure. When the collection depth is not reached, the interstitial water in the insertion process will not enter the collection cylinder, which can ensure the accuracy of collection and reduce errors.

Description

A lake sediment interstitial water collection device

technical field

The utility model belongs to the technical field of water sample collection, in particular to a lake sediment gap water collection device.

Background technique

The mineralization and decomposition of organic clasts in sediments release various nutrients into interstitial water, and the composition of interstitial water changes with depth, which reflects the rate and stoichiometry of mineralization reactions. Studying the dynamics of substances in surface sediments helps to understand their behavior in the entire water environment system, such as sediment-water interface exchange, chemical forms of substances in surface sediments and their diagenetic models, understanding of bottom mineralization and nutrition The burial process of substances requires accurate determination of the chemical composition and content of interstitial water.

Based on the above, the inventors found that the existing interstitial water collection device often needs to dig a pit at the collection point for collection, which destroys the water layer structure of the collection point, and there are errors in the collection. Moreover, when the collection depth is deep, The collection method of digging pits is inefficient and labor-intensive; on the other hand, because the composition of interstitial water changes with the increase of depth, the traditional insertion collection method may cause interstitial water in the shallow area during the insertion process. It will enter the collection tube, resulting in poor collection accuracy and affecting the measurement results.

Therefore, in view of this, the existing structure and defects are studied and improved, and a lake sediment interstitial water collection device is provided, in order to achieve more practical purposes.

Utility model content

In order to solve the above technical problems, the utility model provides a lake sediment interstitial water collection device to solve the problems of low collection efficiency and collection errors in the existing interstitial water collection device.

The purpose and effect of the utility model lake sediment interstitial water collection device are achieved by the following specific technical means:

A lake sediment interstitial water collection device, including a protection mechanism, a collection mechanism, a press-down handle, a casing, a collection handle, a collection rod, a collection cylinder, a guide head, a first threaded sleeve, a first threaded head, and a second threaded sleeve , a second threaded head, a sealing ring, a collection hole, a filter screen and a drain hole; the protection mechanism is sleeved on the outside of the collection mechanism; the protection mechanism includes a pressing handle and a casing; the pressing handle is fixedly welded On both sides of the top of the casing; the collection mechanism includes a collection handle, a collection rod, a collection tube and a guide head; the collection handle is fixedly welded to the top of the collection rod; the bottom of the collection rod is provided with a first threaded sleeve; The top of the collection tube is provided with a first threaded head; the collection rod and the collection tube are threaded through the first threaded sleeve and the first threaded head; the bottom of the collection tube is provided with a second threaded sleeve; the guide The top of the head is provided with a second threaded head; the collection tube and the guide head are threaded through the second threaded sleeve and the second threaded head; the side wall of the collection tube is provided with a collection hole near the top; the collection hole There is a filter on it.

Further, the diameter of the top of the guide head is larger than the diameter of the bottom of the casing.

Further, a sealing ring is provided on the top of the guide head.

Further, the guide head is a conical structure.

Further, a drain hole is opened on the first threaded head; the drain hole is connected to the inside of the collection cylinder.

Compared with the prior art, the utility model has the following beneficial effects:

1. The utility model adopts the plug-in automatic collection method to collect interstitial water, which can avoid digging pits and collect interstitial water in deeper areas. Compared with the method of digging pits, the labor load is significantly reduced.

2. The interstitial water collection device of the present utility model has a double-layer structure. When the collection depth is not reached, the interstitial water during the insertion process will not enter the collection cylinder, which can ensure the accuracy of collection and reduce errors.

3. The utility model is assisted by pressing down the handle and collecting handle when in use, and the operation is simple and fast.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the structure of the acquisition mechanism;

Fig. 3 is a schematic diagram of the connection structure between the casing and the guide head;

Fig. 4 is a structural schematic diagram of the protection mechanism.

In the figure: 1-protection mechanism, 2-collection mechanism, 3-press down handle, 4-cage, 5-collection handle, 6-collection rod, 7-collection cylinder, 8-guiding head, 9-first thread sleeve , 10-first threaded head, 11-second threaded sleeve, 12-second threaded head, 13-sealing ring, 14-collection hole, 15-filter and drain hole.

Detailed ways

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

Example:

As shown in accompanying drawings 1 to 4:

The utility model provides a lake sediment gap water collection device, which includes a protection mechanism 1, a collection mechanism 2, a pressing handle 3, a protective tube 4, a collection handle 5, a collection rod 6, a collection cylinder 7, a guide head 8, a first Thread sleeve 9, first thread head 10, second thread sleeve 11, second thread head 12, sealing ring 13, collection hole 14, filter screen 15 and drain hole 16; protection mechanism 1 is sleeved on the outside of collection mechanism 2 The protection mechanism 1 includes a pressing handle 3 and a casing 4; the pressing handle 3 is fixedly welded on both sides of the top of the casing 4; the collection mechanism 2 includes a collection handle 5, a collection rod 6, a collection tube 7 and a guide head 8; The handle 5 is fixedly welded on the top of the collection rod 6; the bottom of the collection rod 6 is provided with a first threaded sleeve 9; the top of the collection tube 7 is provided with a first threaded head 10; the collection rod 6 and the collection tube 7 pass through the first threaded sleeve 9 Carry out threaded connection with first threaded head 10; The bottom of collection tube 7 is provided with second threaded sleeve 11; The top of guide head 8 is provided with second threaded head 12; Collection tube 7 and guide head 8 pass through second threaded sleeve 11 and The second threaded head 12 is threaded; the side wall of the collection tube 7 is provided with a collection hole 14 near the top; the collection hole 14 is provided with a filter screen 15 .

Wherein, the diameter of the top of the guide head 8 is larger than the diameter of the bottom of the casing 4, and is used to resist the bottom end of the casing 4 and play a position-limiting role.

Wherein, the top of the guide head 8 is provided with a sealing ring 13 to keep the inside of the casing 4 isolated from the outside world, and prevent external water from entering the inside of the casing 4 .

Wherein, the guide head 8 has a conical structure, and the guide head 8 arranged in a conical shape makes the utility model easier to insert into the soil and has better guiding performance.

Wherein, the first threaded head 10 is provided with a drain hole 16; the drain hole 16 is connected to the inside of the collection cylinder 7, and the drain hole 16 is used to pour out the collected interstitial water.

The specific usage and function of this embodiment:

When using the lake sediment interstitial water collection device, the casing 4 is first pressed down into the soil layer by pressing down the handle 3. During the pressing down process, the collection handle 5 remains motionless. Under the action of pressure, the guide head 8 against the protective tube 4 upwards, since the top of the protective tube 4 is provided with a sealing ring 13, the outside water will not enter the inside of the protective tube 4, after reaching the collection depth, press the collection handle 5 downward to make the collection tube 5 stretch out The interstitial water outside casing 4 can enter in the collection cylinder 5 through collection hole 14, and collection hole 14 is arranged on the upper half of collection cylinder 7, and the lower half of collection cylinder 7 is used for collecting interstitial water, and in filter screen 15 Under the action of filtration, larger particles of silt and impurities will not enter the collection tube 5. After the collection is completed, first pull the collection handle 5 upwards so that the guide head 8 is against the bottom of the casing 4 again, and then lift upwards. Pull down the pressure handle 3, pull out the whole device, then unscrew the collection tube 7 from the collection rod 6, and pour out the interstitial water through the drain hole 16.

Utilize the technical solution described in the utility model, or those skilled in the art design a similar technical solution under the inspiration of the technical solution of the utility model, and achieve the above-mentioned technical effects, all fall into the protection scope of the utility model.

Claims (5)

1. A kind of 1. lake sediment gap laden water collecting device, it is characterised in that：The lake sediment gap laden water collecting device includes Protection mechanism, collecting mechanism, pushing handle, casing, collection handle, collection bar, collection tube, guide head, the first thread bush, first Thread head, the second thread bush, the second thread head, sealing ring, gathers hole, filter screen and outage；The protection mechanism is sheathed on The outside of collecting mechanism；The protection mechanism includes pushing handle and casing；The handle that pushes fixes the top for being welded in casing Portion both sides；The collecting mechanism includes collection handle, collection bar, collection tube and guide head；The collection handle, which is fixed, to be welded in Gather the top of bar；The bottom of the collection bar is equipped with the first thread bush；The top of the collection tube is equipped with the first thread head；Institute State collection bar and collection tube is threadedly coupled by the first thread bush and the first thread head；The bottom of the collection tube is equipped with the Two thread bush；The top of the guide head is equipped with the second thread head；The collection tube and guide head pass through the second thread bush and Two thread heads are threadedly coupled；On the side wall of the collection tube collection hole is offered close to top；The collection hole is equipped with Filter screen.
2. 2. lake sediment gap as claimed in claim 1 laden water collecting device, it is characterised in that：The top diameter of the guide head More than the diameter of casing bottom.
3. 3. lake sediment gap as claimed in claim 1 or 2 laden water collecting device, it is characterised in that：The top of the guide head Equipped with sealing ring.
4. 4. lake sediment gap as claimed in claim 1 laden water collecting device, it is characterised in that：The guide head is tied for cone Structure.
5. 5. lake sediment gap as claimed in claim 1 laden water collecting device, it is characterised in that：Opened up on first thread head There is outage；The outage is connected with the inside of collection tube.