Pull-type sediment sampler

Abstract

The utility model provides a pull-type sediment sampler. The pull-type sediment sampler comprises a cutter head; the tool bit is arranged at one end of the shell assembly; the sampling assembly is contained in the shell assembly, the sampling assembly comprises a traction piece and a flexible piece, the two ends of the flexible piece are connected with the shell assembly and the tool bit respectively, one end of the traction piece is arranged on the flexible piece in a sleeving mode, the other end of the traction piece stretches out of the shell assembly, and the traction piece is used for tightening the flexible piece to cut off a soil sample. The utility model solves the problem that a soil sample structure is easy to damage when a sampler is used for sampling in a mud flat area in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of geological survey and soil sediment sampling, in particular to a traction type sediment sampler. BACKGROUND

[0002] In geological survey, the soil layer needs to be sampled, and the sampler is a commonly used tool, which generally comprises a sample storage tube, a cutter head and a cutter. The sample storage tube has an avoiding hole. The cutter head is used to cut into the soil sample, and then the operating rod on the cutter is used to cut the soil sample in the sample storage tube, thus completing the sampling. However, since the operating rod of the cutter is partially located in the sample storage tube, the sample in the sample storage tube is easily disturbed during the sampling process, which cannot effectively ensure the structural stability of the soil sample. In particular, when the soil quality is loose, such as beach and mudflat, the operating rod is easy to destroy the structural layering of the sample, resulting in errors in the subsequent experimental results. In addition, the loose soil quality is also easy to cause the soil sample to leak out when the sampler is taken out.

[0003] As can be seen from the above, the sampler in the prior art is easy to cause the structure of the soil sample to be destroyed when sampling in the mudflat area. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the utility model is to provide a traction type sediment sampler to solve the problem that the sampler in the prior art is easy to cause the structure of the soil sample to be destroyed when sampling in the mudflat area.

[0005] In order to achieve the above purpose, the utility model provides a traction type sediment sampler, which comprises a cutter head, a shell assembly, a sampling assembly, a traction member and a flexible member. The cutter head is arranged at one end of the shell assembly. The sampling assembly is accommodated in the shell assembly and comprises the traction member and the flexible member. The two ends of the flexible member are connected with the shell assembly and the cutter head respectively. One end of the traction member is sleeved on the flexible member, and the other end of the traction member extends out of the shell assembly. The traction member is used to tighten the flexible member to cut off the soil sample.

[0006] Further, the shell assembly comprises a first pipe body and a second pipe body. The cutter head is connected with the first pipe body. The second pipe body is movably arranged in the first pipe body along the axial direction of the first pipe body.

[0007] Further, the traction type sediment sampler further comprises a handrail, and the handrail is connected with the first pipe body.

[0008] Further, the sampling assembly further comprises a supporting member, which is arranged between the flexible member and the traction member. The two ends of the supporting member are connected with the second pipe body and the cutter head respectively. The traction member is used to cut off the supporting member.

[0009] Further, a limiting protrusion is arranged on the inner wall of the cutter head, and the limiting protrusion abuts against the supporting member.

[0010] Further, the support member is threadedly connected with the second tube body or connected by a pin.

[0011] Further, the middle part of the support member has a cutting recess, and the traction member is arranged at the cutting recess.

[0012] Further, the support member comprises two support rings, and at least two connecting arms, two ends of each connecting arm being connected with the two support rings, and the cutting recess being arranged on the connecting arm.

[0013] Further, the traction type sediment sampler further comprises a connecting barrel, two ends of the connecting barrel being connected with the housing assembly and the cutter head respectively.

[0014] Further, the traction type sediment sampler further comprises a limiting ring, the limiting ring being arranged on the outer peripheral wall of the housing assembly and being used for limiting the traction member.

[0015] The technical scheme of the traction type sediment sampler comprises a cutter head, a housing assembly and a sampling assembly, the cutter head is arranged at one end of the housing assembly, the sampling assembly is accommodated in the housing assembly, the sampling assembly comprises a traction member and a flexible member, two ends of the flexible member are connected with the housing assembly and the cutter head respectively, one end of the traction member is sleeved on the flexible member, the other end of the traction member extends out of the housing assembly, the traction member is used for tightening the flexible member to cut off the soil sample, the sampling assembly is arranged in the housing assembly, the cutter head is inserted into the soil sample to realize that the soil sample is accommodated in the sampling assembly in the housing assembly, then the traction member sleeved on the flexible member is operated to realize that the flexible member is tightened, in this process, the traction member can cut off the soil sample in the flexible member, the structure of the soil sample above the flexible member is ensured to be complete, after the flexible member is tightened, the soil sample can be prevented from leaking out, the effectiveness of sampling is improved, and the problem that the sampler in the prior art is easy to damage the structure of the soil sample in the sampling in a beach area is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of this application form a part hereof, serve to provide further understanding of the present application, and together with the description of the present application, explain the present application, and do not limit the present application. In the drawings:

[0017] Figure 1 Fig. 1 shows a structure schematic diagram of a traction type sediment sampler in one specific embodiment of the present application; and

[0018] Figure 2 Fig. 4 shows an exploded view of the traction type sediment sampler in one specific embodiment of the present application;

[0019] Figure 3 Fig. 5 shows a sectional view of the traction type sediment sampler in one specific embodiment of the present application;

[0020] Figure 4 The utility model discloses a Figure 3 The partial enlarged view at A in the middle shows the structure of the support.

[0021] Figure 5 The utility model discloses a

[0022] Among them, the above-mentioned drawing includes the following sign:

[0023] 10, cutter head;11, limit protrusion;20, shell assembly;21, first pipe body;22, second pipe body;30, sampling assembly;31, traction piece;32, flexible piece;33, support piece;331, cutting recess;332, support ring;333, connecting arm;40, handrail;50, connecting barrel;60, limit ring;70, plugging piece. DETAILED DESCRIPTION

[0024] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0026] In the utility model, in the case where no opposite statement is made, the orientation words such as '' up, down, top, bottom '' used are generally for the direction shown in the drawing, or for the component itself in the vertical, perpendicular or gravity direction. Similarly, for the convenience of understanding and description, '' inner, outer '' refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0027] Obviously, the above-described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the utility model.

[0028] In order to solve the problem that the sampler in the prior art is easy to damage the soil sample structure in the mudflat area, the utility model provides a traction type sediment sampler.

[0029] As Figures 1 to 4As shown, the tractor-type sediment sampler comprises a cutter head 10, a shell assembly 20 and a sampling assembly 30. The cutter head 10 is arranged at one end of the shell assembly 20. The sampling assembly 30 is accommodated in the shell assembly 20, and the sampling assembly 30 comprises a traction member 31 and a flexible member 32, two ends of the flexible member 32 are connected with the shell assembly 20 and the cutter head 10 respectively, one end of the traction member 31 is sleeved on the flexible member 32, and the other end of the traction member 31 extends out of the shell assembly 20, and the traction member 31 is used to tighten the flexible member 32 to cut the soil sample.

[0030] By arranging the sampling assembly 30 in the shell assembly 20, the cutter head 10 is inserted into the soil sample to realize that the soil sample is partially accommodated in the sampling assembly 30 in the shell assembly 20, and then the traction member 31 sleeved on the flexible member 32 is operated to realize that the flexible member 32 is tightened, in this process, the traction member 31 can cut the soil sample in the flexible member 32, which ensures the integrity of the soil sample structure above the flexible member 32, and after the flexible member 32 is tightened, the soil sample can be prevented from leaking, and the effectiveness of sampling is improved.

[0031] Further, this design greatly simplifies the sampling process, and the operator only needs to pull the traction member 31 to realize the cutting of the soil, which not only improves the efficiency, but also reduces the physical consumption of the operator.

[0032] As shown in the drawings, Figure 2 The shell assembly 20 comprises a first pipe body 21 and a second pipe body 22. The cutter head 10 is connected with the first pipe body 21. The second pipe body 22 is movably arranged in the first pipe body 21 along the axial direction of the first pipe body 21.

[0033] Specifically, one end of the second pipe body 22 close to the cutter head 10 is detachably connected with the sampling assembly 30, when the first pipe body 21 moves downward by a distance through the cutter head 10, part of the soil sample will be accommodated in the second pipe body 22, at this time, the traction member 31 can tighten the flexible member 32 to cut the soil sample in the flexible member 32, so as to save the soil sample in the second pipe body 22.

[0034] In this embodiment, the first pipe body 21 is an aluminum alloy pipe or a stainless steel pipe, and the second pipe body 22 is a PVC pipe. The diameter of the first pipe body 21 is slightly larger than the diameter of the second pipe body 22, so as to avoid the existence of the soil sample between the first pipe body 21 and the second pipe body 22.

[0035] As shown in the drawings, Figures 1 to 3 The tractor-type sediment sampler further comprises a handrail 40, and the handrail 40 is connected with the first pipe body 21.

[0036] Specifically, the two handrails 40 are provided with external threads, and the first pipe body 21 is provided with internal threads, so that the handrails 40 and the first pipe body 21 can be conveniently disassembled and assembled. Alternatively, the handrails 40 and the first pipe body 21 are integrally formed. Meanwhile, the handrails 40 are arranged to enable the operator to be more stable and labor-saving when using the towed sediment sampler. The design of the handrails 40 is crucial to maintaining the stability of the towed sediment sampler and improving the comfort of the operator when sampling on uneven terrain, and avoids sampling failure caused by unstable terrain.

[0037] As shown in Figures 1 to 2 The towed sediment sampler further comprises a blocking piece 70. The blocking piece 70 is arranged at one end of the first pipe body 21 away from the cutter head 10, and the blocking piece 70 partially extends into the second pipe body 22. The blocking piece 70, the second pipe body 22 and the first pipe body 21 are fixed by pin connection.

[0038] In another optional embodiment of the present application, the towed piece 31 is located between the first pipe body 21 and the second pipe body 22, a part of the blocking piece 70 extends into the second pipe body 22 and is fixedly connected with the second pipe body 22, and another part of the blocking piece 70 is clamped with the first pipe body 21. Thus, after sampling is completed, the second pipe body 22 can be pulled out of the first pipe body 21 by releasing the clamping state of the blocking piece 70 and the first pipe body 21. After the new second pipe body 22 is replaced, new sampling can be performed. One first pipe body 21 matched with multiple second pipe bodies 22 can reduce the production cost. Alternatively, a sliding groove is arranged between the first pipe body 21 and the second pipe body 22, and the towed piece 31 moves in the sliding groove, so as to achieve the effect of tightening the flexible piece 32.

[0039] In the present embodiment, the towed piece 31 is a pull rope, the flexible piece 32 is non-woven fabric or other flexible material, the towed piece 31 has a ring structure capable of being sleeved on the outer surface of the flexible piece 32, and the towed piece 31 always maintains a tightened state before the ring structure is operated, so as to achieve the effect of preventing leakage.

[0040] In the present embodiment, the blocking piece 70 is internally provided with a concave hollow porous thermosensitive resin circular closed head. The towed sediment sampler can be moved downward by applying pressure to the blocking piece 70. The pressure applying mode can be artificial hammering, or the blocking piece 70 can be connected with a driving device to move the towed sediment sampler downward by driving the driving device. Alternatively, a scale mark is arranged on the outer side wall of the first pipe body 21, and the distance of the movement of the towed sediment sampler is determined by the scale mark.

[0041] In the present embodiment, the handrails 40 are provided with anti-skid layers. When used, one hand holds the anti-skid layer, and the other hand is used to hammer the blocking piece 70 to sample.

[0042] AsFigures 2 to 4 As shown, the sampling assembly 30 further comprises a support member 33, which is arranged between the flexible member 32 and the traction member 31, and the two ends of the support member 33 are connected to the second pipe body 22 and the cutter head 10 respectively, and the traction member 31 is used to cut off the support member 33.

[0043] Specifically, the support member 33 is sleeved on the outer side of the flexible member 32, and the traction member 31 is sleeved on the support member 33. The support member 33 keeps the straight state of the flexible member 32, which is convenient for keeping the state of the flexible member 32 when the traction type sediment sampler is assembled. After reaching the sampling depth, the traction member 31 is pulled to realize that the outer side wall of the support member 33 is connected to the flexible member 32, and finally the soil sample is cut off and the second pipe body 22 is blocked.

[0044] As shown in the drawings, Figure 5 The middle part of the support member 33 has a cutting recess 331, and the traction member 31 is arranged at the cutting recess 331.

[0045] Specifically, the cutting recess 331 is arranged on the outer circumferential side of the support member 33, and the thickness of the support member 33 at the cutting recess 331 is smaller than that at other positions. The cutting recess 331 can facilitate the cutting of the support member by the traction member 31, and can also prevent the traction member 31 from sliding on the support member 33, thereby ensuring the accurate cutting of the soil sample and effectively avoiding the data deviation caused by inaccurate sample cutting.

[0046] As shown in the drawings, Figure 5 The support member 33 comprises a support ring 332 and a connecting arm 333. The support ring 332 is two. The two ends of the connecting arm 333 are connected to the support ring 332, and the connecting arm 333 is at least two. The cutting recess 331 is arranged on the connecting arm 333.

[0047] Specifically, a plurality of connecting arms 333 are arranged between the two support rings 332, and the plurality of connecting arms 333 are arranged at intervals along the circumferential direction of the support ring 332. One cutting recess 331 is arranged on each support ring 332. The cutting recesses 331 on the plurality of connecting arms 333 are located at the same position, and the plane formed by the plurality of cutting recesses 331 is parallel to the plane where the support ring 332 is located, thereby facilitating the cutting of the connecting arm 333 by the traction member 31. Alternatively, the hardness of the support ring 332 is greater than the hardness of the connecting arm 333, and the connecting arm 333 is made of plastic.

[0048] In this embodiment, the cutting recess 331 is located at the middle part of the connecting arm 333, and part of the middle part of the connecting arm 333 is recessed downward. The shape of the cutting recess 331 is matched with the traction member 31.

[0049] As shown in the drawings, Figure 4 The inner wall of the cutter head 10 is provided with a limiting protrusion 11, and the limiting protrusion 11 abuts against the support member 33.

[0050] Specifically, one of the two support rings 332 is connected and fixed with the second tube body 22, and the other support ring 332 is in abutment with the limiting protrusion 11, thereby facilitating assembly. Meanwhile, it is also convenient to pull out the first tube body 21 from the second tube body 22. Of course, the two support rings 332 can be respectively connected and fixed with the second tube body 22 and the tool bit 10.

[0051] In the embodiment, the support 33 is threadedly connected with the second tube body 22 or connected through a pin.

[0052] Specifically, when the support 33 is threadedly connected with the second tube body 22, external threads can be arranged on the support 33, and internal threads are arranged on the inner wall of the second tube body 22, or vice versa. When the pin is used for connection, the pin passes through the outer side wall of the support 33 and the second tube body 22.

[0053] As shown in Figures 1 to 4 , the traction type sediment sampler further comprises a connecting barrel 50, and two ends of the connecting barrel 50 are connected with the shell assembly 20 and the tool bit 10 respectively.

[0054] Specifically, the connecting barrel 50 is connected and fixed with the outer side wall of the second tube body 22. When assembling the traction type sediment sampler, other structures can be assembled first, and finally the tool bit 10 is connected with the connecting barrel 50. Since the tool bit 10 is connected with the support 33 through the limiting protrusion 11, at this time, the limiting protrusion 11 of the tool bit 10 needs to be in abutment with the support 33, and the tool bit 10 and the connecting barrel 50 are connected by using a bolt. The tool bit 10 has various types, including a structure with a sharp blade and a structure with a serrated cutter. According to different sampling environments, different tool bits 10 can be selected to improve the sampling efficiency.

[0055] As shown in Figures 1 to 4 , the traction type sediment sampler further comprises a limiting ring 60, and the limiting ring 60 is arranged on the outer peripheral wall of the shell assembly 20. The limiting ring 60 is used for limiting the traction member 31.

[0056] Specifically, the limiting ring 60 is integrally formed with the first tube body 21 or detachably connected. By arranging the limiting ring 60, the swinging and winding of the traction member 31 on the outer side wall of the first tube body 21 is avoided, so that the traction member 31 is ensured to be in the best position, and the traction member 31 winding on the outer side wall of the first tube body 21 is prevented from causing the traction member 31 to fail to pull. Alternatively, the limiting ring 60 is a plurality of limiting rings 60, and the plurality of limiting rings 60 are arranged at intervals along the axial direction of the first tube body 21. Meanwhile, the addition of the limiting ring 60 can prevent the traction member 31 from being excessively stretched or slipping during operation, thereby ensuring the normal work of the traction type sediment sampler.

[0057] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: through setting the traction type sediment sampler, including: cutter head 10;Shell assembly 20, cutter head 10 is arranged at one end of shell assembly 20;Sampling assembly 30, sampling assembly 30 is housed in shell assembly 20, sampling assembly 30 includes traction piece 31 and flexible piece 32, both ends of flexible piece 32 are connected with shell assembly 20 and cutter head 10 respectively, one end of traction piece 31 is sleeved on flexible piece 32, the other end of traction piece 31 extends out of shell assembly 20, traction piece 31 is used for tightening flexible piece 32 to cut off the soil sample, by setting sampling assembly 30 in shell assembly 20, using cutter head 10 to insert into the soil sample to realize that the soil sample is housed in the sampling assembly 30 in shell assembly 20, then operating traction piece 31 that is sleeved on flexible piece 32 realizes that flexible piece 32 is tightened, in this process, traction piece 31 can cut off the soil sample part in flexible piece 32, guarantees the integrity of the soil sample structure above flexible piece 32, and simultaneously after flexible piece 32 is tightened, the soil sample can be avoided to leak out, improves the effectiveness of sampling.

[0058] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments consistent with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0059] It should be noted that the terms "upper", "lower", and the like used herein are used for distinguishing between similar objects only and are not necessarily used to describe a particular orientation or sequential order. It is understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the present application described herein are capable of operation in other orientations than those illustrated or otherwise described herein.

[0060] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and the utility model can have various changes and changes for the person skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A towed sediment sampler characterized in that, The utility model relates to a kind of traction type sediment sampler, including: Tool bit (10); Shell assembly (20), the tool bit (10) is arranged at one end of the shell assembly (20); Sampling assembly (30) is housed in the shell assembly (20), the sampling assembly (30) includes traction (31) and flexible piece (32), two ends of the flexible piece (32) are connected with the shell assembly (20) and the tool bit (10) respectively, one end of the traction (31) is sleeved on the flexible piece (32), the other end of the traction (31) extends out of the shell assembly (20), and the traction (31) is used to tighten the flexible piece (32) to cut off soil sample.

2. The towed sediment sampler of claim 1, wherein, The shell assembly (20) includes: First tube body (21), the tool bit (10) is connected with the first tube body (21); Second tube body (22), the second tube body (22) is movably arranged in the first tube body (21) along the axial direction of the first tube body (21).

3. The towed sediment sampler of claim 2, wherein, The traction type sediment sampler further includes a handrail (40) connected with the first tube body (21).

4. The towed sediment sampler of claim 2, wherein, The sampling assembly (30) further includes a support member (33) disposed between the flexible piece (32) and the traction (31), two ends of the support member (33) are connected with the second tube body (22) and the tool bit (10) respectively, and the traction (31) is used to cut off the support member (33).

5. The towed sediment sampler of claim 4, wherein, A limiting protrusion (11) is provided on the inner wall of the tool bit (10), and the limiting protrusion (11) abuts against the support member (33).

6. The towed sediment sampler of claim 4, wherein, The support member (33) is threadedly connected with the second tube body (22) or connected by a pin.

7. The towed sediment sampler of claim 4, wherein, The middle part of the support member (33) has a cutting recess (331), and the traction (31) is arranged at the cutting recess (331).

8. The towed sediment sampler of claim 7, wherein, The support member (33) includes: A support ring (332) is provided, and the support ring (332) is two in number. A connecting arm (333) is provided, and two ends of the connecting arm (333) are connected with the support ring (332). The connecting arm (333) is at least two in number, and the cutting recess (331) is arranged on the connecting arm (333).

9. The towed sediment sampler according to any one of claims 1 to 8, characterized in that, The traction type sediment sampler further includes a connecting cylinder (50) connected with the shell assembly (20) and the tool bit (10) at two ends thereof.

10. The towed sediment sampler according to any one of claims 1 to 8, characterized in that, The traction type sediment sampler further includes a limiting ring (60) arranged on the outer peripheral wall of the shell assembly (20), and the limiting ring (60) is used to limit the traction (31).

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