Portable bottom mud sampling device

Abstract

The utility model relates to the technical field of environmental sampling, and discloses a portable bottom mud sampling device which comprises a pipe body, and the inner circular wall of the pipe body is fixedly connected with a connecting rod; the center of the connecting rod is in threaded connection with a threaded rod; a handle is arranged at the top end of the threaded rod; the bottom of the threaded rod is rotationally connected with a first partition disc. The outer circular wall of the first partition disc is connected to the inner circular wall of the pipe body in a sealed and sliding mode. The inner circular wall, close to the bottom, of the pipeline is fixedly connected with a chassis; a through hole is formed in the side wall of the chassis; a second separation disc, a third separation disc and a fourth separation disc are respectively arranged between the first separation disc and the base disc; the first partition disc, the second partition disc, the third partition disc and the fourth partition disc are connected through telescopic assemblies; the round through groove is sealed under the action of the telescopic assembly, so that a worker can take out a sample from the tube body, continuous sampling of the worker is facilitated, the sampling process is simplified, and the time cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of environmental sampling, and particularly relates to a portable bottom mud sampling device. BACKGROUND

[0002] River bottom mud, as an important component of river, not only exchanges material with river water, but also provides living environment for aquatic organisms. Its quality directly reflects the pollution status and historical pollution record of river, therefore, river bottom mud sampling is of great significance for understanding water pollution, assessing water ecological health status and supporting water quality improvement project.

[0003] In order to make up for the deficiency of prior art, in the process of river bottom mud sampling, due to the uneven distribution of pollutants in the bottom mud, in order to obtain more accurate data and reduce accidental error, multiple sampling and comprehensive analysis of results are required; however, most of the existing samplers have the inconvenience of operation when continuous sampling, that is, the sampler needs to be cleaned after each sampling to remove the last collected sample, which undoubtedly increases the complexity and time cost of the sampling process. SUMMARY

[0004] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a portable bottom mud sampling device.

[0005] The technical scheme of the utility model is as follows: a portable bottom mud sampling device, comprising a pipe body, a connecting rod is fixedly connected to the inner circular wall of the pipe body; a threaded rod is threadedly connected to the center of the connecting rod; a handle is arranged at the top end of the threaded rod; a first partition disc is rotatably connected to the bottom of the threaded rod; the outer circular wall of the first partition disc is sealingly and slidably connected to the inner circular wall of the pipe body; a bottom disc is fixedly connected to the inner circular wall of the pipe near the bottom; a through opening is arranged on the side wall of the bottom disc; a second partition disc, a third partition disc and a fourth partition disc are respectively arranged between the first partition disc and the bottom disc; the first partition disc, the second partition disc, the third partition disc and the fourth partition disc are connected through a telescopic assembly; the side wall of the second partition disc, the third partition disc and the fourth partition disc is provided with a circular through groove; the side wall of the pipe body is provided with a plurality of valves.

[0006] As a preferred implementation form, the telescopic assembly comprises a sleeve rod; the side wall of the first partition disc is slidably connected with the sleeve rod; the outer circular wall of the sleeve rod close to the top is fixedly connected with a first clamping ring; the side wall of the first partition disc is provided with a first circular groove; the circular groove is matched with the first clamping ring; the second partition disc is fixedly connected with the outer circular wall of the sleeve rod; the inner part of the sleeve rod is slidably connected with an inner rod; the third partition disc is slidably connected with the inner rod; the outer circular wall of the inner rod is fixedly connected with a second clamping ring; the side wall of the third partition disc is provided with a second circular groove; the second circular groove is matched with the second clamping ring; the inner part of the inner rod is slidably connected with a limiting rod; the limiting rod is slidably connected with a fourth partition disc; the outer circular wall of the limiting rod is fixedly connected with a third clamping ring; the side wall of the fourth partition disc is provided with a third circular groove; the third circular groove is matched with the third clamping ring; the second partition disc, the third partition disc and the fourth partition disc are all provided with a sealing assembly.

[0007] As a preferred implementation form, the sealing assembly comprises a circular block; the side wall of the circular through groove is fixedly connected with the circular block; the side wall of the circular block is provided with a plurality of arc-shaped through grooves; the side wall of the circular block is rotatably connected with a fan-shaped block; the outer circular wall of the fan-shaped block is provided with a trigger.

[0008] As a preferred implementation form, the trigger comprises an arc-shaped block; the side wall of the circular block is slidably connected with the arc-shaped block through a sliding groove; the side wall of the arc-shaped block is fixedly connected on the fan-shaped block; the side wall of the circular block is fixedly connected with a fixing block; the fixing block and the arc-shaped block are fixedly connected with a return spring; the groove walls of the circular through grooves of the third partition disc and the fourth partition disc are all fixedly connected with first resisting blocks; the side wall of the through port of the bottom disc is fixedly connected with a second resisting block; the side wall of the arc-shaped block is provided with a limiting groove; the limiting groove is matched with the first resisting block and the second resisting block.

[0009] As a preferred implementation form, the limiting groove is in an inclined shape.

[0010] As a preferred implementation form, the pipe body comprises a pipe, a receiving pipe and a top cover; the pipe, the receiving pipe and the top cover are connected through flanges; the connecting rod is fixedly connected on the top cover; the top of the threaded rod is fixedly connected with a polygonal rod; the handle is slidably connected on the side wall of the polygonal rod.

[0011] As a preferred implementation form, the first resisting block and the second resisting block are both in an arc shape close to one end of the limiting groove.

[0012] As a preferred implementation form, the outer surface of the handle is provided with anti-skid lines.

[0013] The utility model discloses the beneficial effect is as follows:

[0014] The device can be contacted with the river bottom mud at the bottom end of the pipe body by the worker, the worker rotates the handle with the arm, so that the handle drives the threaded rod to rotate, so that the threaded rod rotates on the connecting rod, at this time the threaded rod drives the first partition disc to move upward, the river bottom mud is sucked into the pipe body at the bottom disc opening, then the circular slot is closed through the action of the telescopic assembly, the sample is stored between the first partition disc, the second partition disc, the third partition disc and the fourth partition disc, then through the valve, the worker can take out the sample from the pipe body, which is convenient for the worker to continuously sample, simplifies the sampling process, saves the time cost, through the rotation of the fan blade block on the circular block, the fan blade block can cover the arc-shaped slot on the circular block, preventing the sample from flowing out of the circular slot, then through the action of the trigger, the fan blade block can be rotated to cover the arc-shaped slot, so that the device can automatically close the arc-shaped slot after sampling, preventing the sample from flowing out. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further described below in combination with the drawings.

[0016] Figure 1 It is the utility model three-dimensional structure diagram;

[0017] Figure 2 It is the pipe body partial sectional view;

[0018] Figure 3 It is Figure 2 It is the enlarged view of A in the middle;

[0019] Figure 4 It is Figure 2 It is the enlarged view of B in the middle;

[0020] Figure 5 It is the partial structure diagram of trigger;

[0021] Figure 6 It is the partial explosion view of trigger;

[0022] Figure 7 It is the partial structure diagram of circular block.

[0023] Explanation of reference signs:

[0024] In the figure: 1, pipe body; 2, connecting rod; 3, threaded rod; 4, handle; 5, first partition disc; 6, bottom disc; 7, through hole; 8, second partition disc; 9, third partition disc; 10, fourth partition disc; 11, circular through slot; 12, valve; 13, sleeve rod; 14, first clamping ring; 15, inner rod; 16, second clamping ring; 17, limiting rod; 18, third clamping ring; 19, circular block; 20, arc-shaped through slot; 21, fan-shaped block; 22, arc-shaped block; 23, fixed block; 24, first abutting block; 25, second abutting block; 26, limiting groove; 27, pipe; 28, receiving pipe; 29, top cover opening; 30, flange; 31, polygonal rod. DETAILED DESCRIPTION

[0025] To make the possible application scenarios, technical principles, specific implementation schemes, and the purposes and effects of the present application clear, the following will be described in detail in combination with the specific embodiments listed and the accompanying drawings. The embodiments described in this paper are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0026] In this paper, the term "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing at various places in the specification does not necessarily refer to the same embodiment, and does not particularly limit the independence or association between other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical scheme.

[0027] Unless otherwise defined, the meaning of the technical terms used in this paper is the same as that generally understood by those skilled in the art to which the present application belongs; the use of related terms in this paper is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0028] In the description of the present application, the phrase "and / or" is a description of the logical relationship between the objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" logical relationship.

[0029] In the present application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary and secondary or order relationship between the entities or operations.

[0030] In the absence of more restrictions, in the utility model, the "including", "containing", "having" or other similar expressions used in the sentence are intended to cover non-exclusive inclusion, and these expressions do not exclude the presence of other elements in the process, method or product including the elements described, so that the process, method or product including a series of elements can not only include those limited elements, but also include other elements not explicitly listed, or also include the elements inherent in such process, method or product.

[0031] As the same understanding in the "Guidelines for Examination", in the utility model, "greater than", "less than", "exceed" and other expressions are understood as not including the number; "above", "below", "within" and other expressions are understood as including the number. In addition, in the description of the embodiments of the utility model, the meaning of "multiple" is more than two (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times" and the like, unless otherwise explicitly specified.

[0032] In the description of the embodiments of the utility model, the spatial-related expressions used, such as "center", "vertical", "horizontal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. The indicated orientation or position relationship is based on the orientation or position relationship shown in the specific embodiment or the drawing, and is only for the convenience of describing the specific embodiments of the utility model or for the reader to understand, and does not indicate or imply that the indicated device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, therefore it cannot be understood as a limitation on the embodiments of the utility model.

[0033] Unless otherwise explicitly specified or limited, in the description of the embodiments of the utility model, the terms "mounting", "connecting", "connecting", "fixing", "setting" and the like should be understood broadly. For example, the "connection" can be fixed connection, or detachable connection, or integrated setting; it can be mechanical connection, or electrical connection, or communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art to which the utility model belongs, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0034] Please refer to Figures 1-7The utility model provides a portable bottom mud sampling device, including the tubulature 1, the inner circular wall of tubulature 1 is fixedly connected with connecting rod 2, the centre place of connecting rod 2 is threadedly connected with threaded rod 3, the top of threaded rod 3 is equipped with handle 4, the bottom of threaded rod 3 is rotatably connected with first baffle 5, the outer circular wall of first baffle 5 is sealed and is slidably connected on the inner circular wall of tubulature 1, the inner circular wall of the bottom of pipeline 27 is fixedly connected with bottom disc 6, the lateral wall of bottom disc 6 is equipped with mouth 7, second baffle 8, third baffle 9 and fourth baffle 10 are placed respectively between first baffle 5 and bottom disc 6, first baffle 5, second baffle 8, third baffle 9 and fourth baffle 10 are connected through telescopic component, the lateral wall of second baffle 8, third baffle 9 and fourth baffle 10 is equipped with round through groove 11, the lateral wall of tubulature 1 is equipped with multiple valve 12.

[0035] Specifically, the telescopic component includes a sleeve rod 13; the lateral wall of the first baffle 5 is slidably connected with the sleeve rod 13; the outer circular wall of the sleeve rod 13 close to the top is fixedly connected with a first clamping ring 14; the lateral wall of the first baffle 5 is provided with a first circular groove; the first circular groove is matched with the first clamping ring 14; the outer circular wall of the second baffle 8 is fixedly connected with the sleeve rod 13; the inside of the sleeve rod 13 is slidably connected with an inner rod 15; the third baffle 9 is slidably connected with the inner rod 15; the outer circular wall of the inner rod 15 is fixedly connected with a second clamping ring 16; the lateral wall of the third baffle 9 is provided with a second circular groove; the second circular groove is matched with the second clamping ring 16; the inside of the inner rod 15 is slidably connected with a limiting rod 17; the limiting rod 17 is slidably connected with the fourth baffle 10; the outer circular wall of the limiting rod 17 is fixedly connected with a third clamping ring 18; the lateral wall of the fourth baffle 10 is provided with a third circular groove; the third circular groove is matched with the third clamping ring 18; the second baffle 8, the third baffle 9 and the fourth baffle 10 are all provided with a sealing assembly.

[0036] Specifically, the sealing assembly includes a circular block 19; the lateral wall of the circular through groove 11 is fixedly connected with the circular block 19; the lateral wall of the circular block 19 is provided with a plurality of arc-shaped through grooves 20; the lateral wall of the circular block 19 is rotatably connected with a leaf block 21; the outer circular wall of the leaf block 21 is provided with a trigger.

[0037] Specifically, the trigger piece comprises an arc-shaped block 22; the sidewall of the circular block 19 is slidably connected with the arc-shaped block 22 through a sliding groove; the sidewall of the arc-shaped block 22 is fixedly connected to a sector-shaped block; the sidewall of the circular block 19 is fixedly connected with a fixing block 23; the fixing block 23 and the arc-shaped block 22 are fixedly connected with a return spring; the sidewall of the circular through slot 11 of the third and fourth partition plates 9 and 10 is fixedly connected with a first resisting block 24; the sidewall of the through opening 7 of the bottom plate 6 is fixedly connected with a second resisting block 25; the sidewall of the arc-shaped block 22 is provided with a limiting slot 26; the limiting slot 26 is matched with the first and second resisting blocks 24 and 25.

[0038] Through the above technical scheme, when the staff contacts the bottom end of the pipe body 1 with the river channel sediment, the staff rotates the handle 4 with the arm, so that the handle 4 drives the threaded rod 3 to rotate, so that the threaded rod 3 is screwed on the connecting rod 2, at this time the threaded rod 3 will drive the first partition plate 5 to move upwards, the river channel sediment will be sucked into the pipe body 1 at the bottom plate 6 through hole 7, through the action of the telescopic assembly, the first sample will be between the first partition plate 5 and the second partition plate 8, when the staff continues to take samples, the second partition plate 8 and the third partition plate 9 will form a new storage space under the action of the telescopic assembly to obtain the second sample, and then the circular through slot 11 is closed through the action of the telescopic assembly, so that the sample is stored between the first partition plate 5, the second partition plate 8, the third partition plate 9 and the fourth partition plate 10, and then through the valve 12, the staff can take out the sample from the pipe body 1, which is convenient for the staff to continuously take samples, simplifies the sampling process and saves time cost; when the staff rotates the threaded rod 3 to drive the first partition plate 5 to move upwards, the second circular groove on the first partition plate 5 contacts the second clamping ring 16, the first partition plate 5 moves upwards to drive the sleeve rod 13 to move upwards, so that the sleeve rod 13 drives the second partition plate 8 to move upwards, and then when the sleeve rod 13 moves upwards, the sliding between the sleeve rod 13 and the inner rod 15 will cause a certain gap between the second partition plate 8 and the third partition plate 9, after that, the second limiting ring on the inner rod 15 corresponds to the second circular groove on the second partition plate 8, so that the inner rod 15 continues to drive the second partition plate 8 upwards, and then the sliding between the inner rod 15 and the limiting rod 17 will cause a certain gap between the third partition plate 9 and the fourth partition plate 10, and then through the action of the sealing assembly, the circular through slot 11 will be blocked, so that the pipe body 1 can store multiple samples; by rotating the fan blade block 21 on the circular block 19, the fan blade block 21 will cover the arc-shaped through slot 20 on the circular block 19, preventing the sample from flowing out of the circular through slot 11, and then through the action of the trigger, the fan blade block 21 can be rotated to cover the arc-shaped through slot 20; by moving the first abutting block 24 and the second abutting block 25 on the limiting groove 26, the arc-shaped block 22 will drive the fan-shaped block to rotate under the action of the return spring, and when the second partition plate 8, the third partition plate 9, the fourth partition plate 10 and the bottom plate 6 are no longer attached, the first abutting block 24 in the circular through slot 11 and the second abutting block 25 on the bottom plate 6 will be separated from the limiting groove 26, at this time the arc-shaped block 22 will be pulled to the fixed block 23 by the return spring, so that the fan blade block 21 fixedly connected with the arc-shaped block 22 will rotate to cover the arc-shaped through slot 20, realizing that the device will automatically close the arc-shaped through slot 20 after sampling, preventing the sample from flowing out.

[0039] Specifically, the limiting groove 26 is inclined.

[0040] Through the technical scheme, the first abutting block 24 and the second abutting block 25 are extruded by the limiting groove 26 during the process that the staff rotates the threaded rod 3 to restore the device to the initial state, the arc-shaped block 22 is pushed back to the initial position after the limiting groove 26 is extruded, the arc-shaped through groove 20 is opened by the sector-shaped block, and the staff is facilitated to operate.

[0041] Specifically, the pipe body 1 comprises a pipe 27, a receiving pipe 28 and a top cover 29; the pipe 27, the receiving pipe 28 and the top cover 29 are connected through a flange 30; the connecting rod 2 is fixedly connected to the top cover 29; the top of the threaded rod 3 is fixedly connected with a polygonal rod 31; the handle 4 is slidingly connected to the side wall of the polygonal rod 31.

[0042] Through the technical scheme, the pipe 27, the receiving pipe 28 and the top cover 29 are connected through the flange 30, a plurality of receiving pipes 28 can be used to increase the length of the pipe body 1, so as to facilitate sampling of river channels with different depths, and the pipe body 1 is convenient to disassemble, and portability is provided for transportation of the pipe body 1.

[0043] Specifically, the first abutting block 24 and the second abutting block 25 are arc-shaped at one end close to the limiting groove 26.

[0044] Through the technical scheme, the arc shape on the first abutting block 24 and the second abutting block 25 reduces the degree of friction when the first abutting block 24 and the second abutting block 25 extrude the limiting groove 26, and the arc-shaped block 22 is facilitated to return to the initial position.

[0045] Specifically, the outer surface of the handle 4 is provided with anti-skid lines.

[0046] Through the technical scheme, the anti-skid lines on the handle 4 can facilitate the staff to rotate the handle 4 to operate the device.

[0047] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of the utility model, they cannot limit the patent protection scope of the utility model. Any equivalent structure or equivalent process replacement or modification based on the essential concept of the utility model, using the contents recorded in the utility model specification and drawings, and directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are all included in the patent protection scope of the utility model.

Claims

1. A portable sediment sampling device comprising a tube body (1), characterized in that, The inner circular wall of the pipe body (1) is fixedly connected with a connecting rod (2); the center of the connecting rod (2) is threadedly connected with a threaded rod (3); the top end of the threaded rod (3) is provided with a handle (4); the bottom of the threaded rod (3) is rotatably connected with a first partition disc (5); the outer circular wall of the first partition disc (5) is sealingly and slidably connected to the inner circular wall of the pipe body (1); the pipe body (1) comprises a pipeline (27), the inner circular wall of the bottom of which is fixedly connected with a bottom disc (6); the side wall of the bottom disc (6) is provided with a through port (7); the first partition disc (5), the second partition disc (8), the third partition disc (9) and the fourth partition disc (10) are respectively arranged between the first partition disc (5) and the bottom disc (6); the first partition disc (5), the second partition disc (8), the third partition disc (9) and the fourth partition disc (10) are connected through a telescopic assembly; the side wall of each of the second partition disc (8), the third partition disc (9) and the fourth partition disc (10) is provided with a circular through groove (11); the side wall of the pipe body (1) is provided with a plurality of valve doors (12).

2. The portable sediment sampling device of claim 1, wherein, The telescopic assembly comprises a sleeve rod (13); the side wall of the first partition disc (5) is slidably connected with the sleeve rod (13); the outer circular wall of the top of the sleeve rod (13) is fixedly connected with a first clamping ring (14); the side wall of the first partition disc (5) is provided with a first circular recess; the first circular recess is matched with the first clamping ring (14); the outer circular wall of the sleeve rod (13) is fixedly connected with the second partition disc (8); the inside of the sleeve rod (13) is slidably connected with an inner rod (15); the third partition disc (9) is slidably connected with the inner rod (15); the outer circular wall of the inner rod (15) is fixedly connected with a second clamping ring (16); the side wall of the third partition disc (9) is provided with a second circular recess; the second circular recess is matched with the second clamping ring (16); the inside of the inner rod (15) is slidably connected with a limiting rod (17); the limiting rod (17) is slidably connected with the fourth partition disc (10); the outer circular wall of the limiting rod (17) is fixedly connected with a third clamping ring (18); the side wall of the fourth partition disc (10) is provided with a third circular recess; the third circular recess is matched with the third clamping ring (18); each of the second partition disc (8), the third partition disc (9) and the fourth partition disc (10) is provided with a sealing assembly.

3. The portable sediment sampling device of claim 2, wherein, The sealing assembly comprises a circular block (19); the side wall of the circular through groove (11) is fixedly connected with the circular block (19); the side wall of the circular block (19) is provided with a plurality of arc-shaped through grooves (20); the side wall of the circular block (19) is rotatably connected with a fan block (21); the outer circular wall of the fan block (21) is provided with a trigger.

4. The portable sediment sampling device of claim 3, wherein, The trigger comprises an arc-shaped block (22); the sidewall of the circular block (19) is slidably connected with the arc-shaped block (22) through a sliding groove; the sidewall of the arc-shaped block (22) is fixedly connected with a sector-shaped block; the sidewall of the circular block (19) is fixedly connected with a fixing block (23); the fixing block (23) and the arc-shaped block (22) are fixedly connected with a reset spring; the sidewall of the circular through groove (11) of the third partition disc (9) and the fourth partition disc (10) is fixedly connected with a first resisting block (24); the sidewall of the through opening (7) of the bottom disc (6) is fixedly connected with a second resisting block (25); the sidewall of the arc-shaped block (22) is provided with a limiting groove (26); the limiting groove (26) is matched with the first resisting block (24) and the second resisting block (25).

5. The portable sediment sampling device of claim 4, wherein, The limiting groove (26) is provided in an inclined shape.

6. The portable sediment sampling device of claim 1, wherein, The pipe body (1) further comprises a receiving pipe (28) and a top cover opening (29); the pipe (27), the receiving pipe (28) and the top cover opening (29) are connected through a flange (30); the connecting rod (2) is fixedly connected with the top cover opening (29); the top of the threaded rod (3) is fixedly connected with a polygonal rod (31); the handle (4) is slidably connected with the sidewall of the polygonal rod (31).

7. The portable sediment sampling device of claim 4, wherein, The first resisting block (24) and the second resisting block (25) are provided in an arc shape at one end close to the limiting groove (26).

8. The portable sediment sampling device of claim 5, wherein, The outer surface of the handle (4) is provided with anti-skid lines.

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