Screwing type sediment sampler

Abstract

The utility model provides a screwing type sediment sampler. The screwing-type sediment sampler comprises a tool bit, wherein the tool bit is used for being inserted into a soil sample; the cutter head is arranged at one end of the outer tube; the inner pipe is arranged in the outer pipe, the inner pipe can rotate relative to the outer pipe, and the inner pipe and the tool bit are arranged in a spaced mode; the locking assembly is contained in the outer pipe and located between the inner pipe and the tool bit, the locking assembly is provided with a flexible section, one end of the flexible section is connected with the end, close to the tool bit, of the outer pipe, the other end of the flexible section is connected with the inner pipe, and the flexible section comprises a cloth body and a cutting wire arranged on the outer side wall of the cloth body; two ends of the cutting wire are respectively connected with two ends of the cloth body, and the cutting wire is used for cutting a soil sample. The utility model solves the problem that a sampler in the prior art has a poor sampling effect in a mud flat area.

Description

TECHNICAL FIELD

[0001] The utility model relates to geological survey and soil sediment sampling field, specifically, relate to a screw type sediment sampler. BACKGROUND

[0002] Geological sampling has important role in construction, environmental research direction, currently common sampling mode generally carries out sampling through sampler, and the sampler is a tool for sampling in the soil layer to carry out soil analysis, including the outer tube provided with the cutter head, the inner tube provided in the outer tube, the cutter provided in the inner tube and the operating handle, the inner tube can rotate relative to the outer tube, the cutter has two states of avoiding and cutting, before sampling, the cutter is adjusted to the avoiding state to avoid the soil sample to enter the inner tube, and then the operating handle is rotated, since the operating handle is connected with the cutter, the cutter is switched to the cutting state to complete the cutting of the soil sample, the inner tube is pulled out from the soil layer, and the sampling is completed.

[0003] From the above, it can be seen that the sampler in the prior art has poor sampling effect in the beach area. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a screw type sediment sampler to solve the problem of poor sampling effect of the sampler in the prior art in the beach area.

[0005] In order to achieve the above purpose, the utility model provides a screw type sediment sampler, which comprises: a cutter head, the cutter head is used for inserting a soil sample; an outer tube, the cutter head is arranged at one end of the outer tube; an inner tube, the inner tube is arranged in the outer tube, the inner tube can rotate relative to the outer tube, and the inner tube is arranged at intervals with the cutter head; a locking assembly, the locking assembly is accommodated in the outer tube, and the locking assembly is located between the inner tube and the cutter head, the locking assembly has a flexible section, one end of the flexible section is connected with one end of the outer tube close to the cutter head, the other end of the flexible section is connected with the inner tube, and the flexible section comprises a cloth body and a cutting wire arranged on the outer side wall of the cloth body, both ends of the cutting wire are connected with both ends of the cloth body respectively, and the cutting wire is used for cutting the soil sample.

[0006] Further, the cutting wire is a plurality of cutting wires, the plurality of cutting wires are arranged at intervals on the outer side wall of the cloth body, and the extension direction of the cutting wire is arranged at an angle with the extension direction of the inner tube.

[0007] Further, the locking assembly further comprises two connecting end heads, the two connecting end heads are arranged at both ends of the flexible section respectively, both ends of the cutting wire are connected with the two connecting end heads respectively, and the two connecting end heads are connected with the cutter head and the inner tube respectively.

[0008] Further, the connecting end head away from the inner tube among the two connecting end heads is clamped or threadedly connected with the cutter head.

[0009] Further, the screw-type sediment sampler further comprises a limiting support member, which is detachably connected with the inner wall of the flexible section, and two ends of the limiting support member are connected with the two connecting end heads respectively.

[0010] Further, the screw-type sediment sampler further comprises an operating assembly, which is connected with the other end of the inner tube and is used to drive the inner tube to rotate.

[0011] Further, the operating assembly comprises an operating end cover, which is detachably connected with the inner tube, and an operating handrail, which is detachably connected with the outer peripheral wall of the operating end cover.

[0012] Further, the operating assembly further comprises an air valve, which is arranged between the operating end cover and the inner tube and is used to adjust the gas flow in the inner tube.

[0013] Further, the screw-type sediment sampler further comprises a plugging member, which is used to plug the air valve.

[0014] Further, the screw-type sediment sampler further comprises a connecting member, two ends of which are connected with the outer tube and the cutter head respectively.

[0015] The technical scheme of the screw-type sediment sampler comprises a cutter head, an outer tube, an inner tube and a locking assembly, the cutter head is used to be inserted into a soil sample, the cutter head is arranged at one end of the outer tube, the inner tube is arranged in the outer tube and can rotate relative to the outer tube, the inner tube is arranged in a spaced manner with the cutter head, the locking assembly is accommodated in the outer tube and is located between the inner tube and the cutter head, the locking assembly has a flexible section, one end of the flexible section is connected with the end of the outer tube close to the cutter head, and the other end of the flexible section is connected with the inner tube, the flexible section comprises a cloth body and a cutting wire arranged on the outer side wall of the cloth body, two ends of the cutting wire are connected with two ends of the cloth body respectively, and the cutting wire is used to cut the soil sample, the cutter head is arranged on the outer tube, the locking assembly is arranged in the outer tube, two ends of the flexible section of the locking assembly are connected with the inner tube and the cutter head respectively, pressure is applied to the end of the screw-type sediment sampler away from the cutter head, the screw-type sediment sampler is partially inserted into the soil sample, the inner tube is rotated by hand, the flexible section is screwed, the cutting wire is deformed in the process of screwing the flexible section, so that the soil sample is cut, meanwhile, the arrangement of the cloth body can prevent the soil sample from leaking out of the inner tube when the soil sample is loose soil, the sampling effect of the sampler is improved, and the problem that the sampling effect of the sampler in the present technical scheme is poor in a beach area is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of the present application serve to provide further understanding of the present application, the illustrative embodiments of the present application and the description thereof serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 A structure schematic view of the screw type sediment sampler in one specific embodiment of the present application is shown; and

[0018] Figure 2 An exploded view of the screw type sediment sampler in one specific embodiment of the present application is shown.

[0019] Figure 3 A structure schematic view of the locking assembly in one specific embodiment of the present application is shown.

[0020] Among them, the above drawings include the following reference signs:

[0021] 10, tool bit; 20, outer tube; 21, fixed handrail; 30, inner tube; 40, locking assembly; 41, cloth body; 42, cutting wire; 43, connecting end; 431, connecting hole; 50, limiting support; 60, operation assembly; 61, operation end cover; 62, operation handrail; 63, air valve; 70, plugging piece; 80, connecting piece. DETAILED DESCRIPTION

[0022] 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 present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0023] 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.

[0024] In the present application, unless otherwise specified, the orientation words such as "up, down, top, bottom" are generally directed to the directions shown in the drawings, or are directed to the vertical, perpendicular or gravity directions of the components themselves; 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 present application.

[0025] Obviously, the above described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0026] In order to solve the problem of poor sampling effect of the sampler in the mudflat area in the prior art, the utility model provides a screw type sediment sampler.

[0027] As Figures 1 to 3 The utility model discloses a screw type sediment sampler which comprises a cutter head 10, an outer tube 20, an inner tube 30 and a locking assembly 40. The cutter head 10 is used for inserting into the soil sample. The inner tube 30 is arranged in the outer tube 20 and can rotate relative to the outer tube 20. The locking assembly 40 is arranged in the outer tube 20 and is located between the inner tube 30 and the cutter head 10. The locking assembly 40 has a flexible section. One end of the flexible section is connected with one end of the outer tube 20 close to the cutter head 10. The other end of the flexible section is connected with the inner tube 30. The flexible section comprises a cloth body 41 and a cutting wire 42 arranged on the outer side wall of the cloth body 41. The cutting wire 42 is used for cutting the soil sample.

[0028] By arranging the cutter head 10 on the outer tube 20 and arranging the locking assembly 40 in the outer tube 20, the two ends of the flexible section of the locking assembly 40 are connected with the inner tube 30 and the cutter head 10 respectively. The screw type sediment sampler is partially inserted into the soil sample. The flexible section is screwed by rotating the inner tube 30. Since the flexible section comprises the cloth body 41 and the cutting wire 42, the cutting wire 42 is deformed during the screwing of the flexible section, so that the soil sample is cut. Meanwhile, the arrangement of the cloth body 41 can prevent the soil sample from leaking out of the inner tube 30 when the soil sample is loose, thereby improving the sampling effect of the sampler.

[0029] Further, by this design, the screw type sediment sampler can effectively prevent the soil sample from being deformed by external force during sampling, thereby ensuring the original state of the soil sample during sampling and ensuring the accuracy of the subsequent experimental results.

[0030] In this embodiment, the cutting wire 42 is a plurality of cutting wires 42. The plurality of cutting wires 42 are arranged on the outer side wall of the cloth body 41 at intervals. The extension direction of the cutting wire 42 is arranged at an angle to the extension direction of the inner tube 30.

[0031] Specifically, the cutting wire 42 is a metal wire with a certain deformation ability, the cloth body 41 is a non-woven fabric, and the plurality of cutting wires 42 are arranged at the same angle along the extension direction of the inner tube 30. When the inner tube 30 rotates relative to the outer tube 20, the plurality of cutting wires 42 are twisted in the same direction, and the inner tube 30 moves towards the cutter head 10. Finally, the plurality of cutting wires 42 are twisted together, and the movement process is similar to wringing a towel. The non-woven fabric can prevent soil samples from leaking out and has a certain structural strength and will not be cut by the cutting wire 42. At the same time, the design of the plurality of cutting wires 42 can more uniformly cut the soil sample, reduce the damage of the soil sample during sampling, and improve the sampling accuracy.

[0032] In the embodiment, the cutting wire 42 is three, in order to ensure that the cutting wire 42 can cut off the soil sample, and the cloth body 41 can block one end of the inner tube 30, and the inner tube 30 rotates half a circle when rotating.

[0033] As shown in Figures 2 to 3 The locking assembly 40 also includes a connecting end 43, and the connecting end 43 is two, the two connecting ends 43 are respectively arranged at both ends of the flexible section, and the two ends of the cutting wire 42 are respectively connected with the two connecting ends 43. The two connecting ends 43 are respectively connected with the cutter head 10 and the inner tube 30.

[0034] Specifically, the two connecting ends 43 are respectively located at both ends of the cloth body 41, and the connecting end 43 is provided with a connecting hole 431, and the connecting hole 431 is a plurality of, and the plurality of connecting holes 431 are arranged at intervals along the outer peripheral wall of the connecting end 43. The two ends of each cutting wire 42 extend into the connecting end 43 through the connecting hole 431.

[0035] In the embodiment, the inner tube 30 is a standard columnar PVC sampling tube, and the outer tube 20 is an aluminum alloy tube or a stainless steel tube. When the inner tube 30 is connected with the connecting end 43, it is connected through a screw or a pin shaft to avoid the locking assembly 40 from being separated from the inner tube 30.

[0036] In the embodiment, the connecting end 43 far away from the inner tube 30 of the two connecting ends 43 is connected with the cutter head 10 through clamping or threaded connection.

[0037] Specifically, the cutter head 10 is a cylindrical structure, the cutter head 10 is an inclined blunt cutter solid structure arranged close to the inner tube 30 along the axial direction of the outer tube 20, and includes a plurality of trapezoidal sawtooth structures, so that when softer soil is encountered, rotation is used, and when harder soil is encountered, hammering on the outer tube 20 is used, so that various soil sampling can be satisfied. When the connecting end head 43 is threadedly connected with the cutter head 10, an inner thread is formed in the inner wall of the cutter head 10, and an outer thread is formed in the connecting end head 43; and when the connecting end head 43 is clamped with the cutter head 10, a plurality of protrusions are arranged on the inner wall of the cutter head 10, and a plurality of clamping recesses are arranged on the connecting end head 43. When connected, one end of the locking assembly 40 is riveted with the inner tube 30, and the other end is inserted into the cutter head 10 and connected by clamping the protrusions in the clamping recesses.

[0038] As shown in Figure 2 , the screw type sediment sampler further comprises a limiting support 50, which is detachably connected with the inner wall of the flexible section, and two ends of the limiting support 50 are connected with the two connecting end heads 43 respectively.

[0039] Specifically, the limiting support 50 is arranged in the inside of the cloth body 41, and the limiting support 50 is clamped with the two connecting end heads 43 respectively, so that the diameter of the cloth body 41 is maintained during assembly, and the flexible section is prevented from being squeezed and deformed accidentally during installation, so that the cutting wire 42 is squeezed and deformed and cannot cut the soil sample. That is, the purpose of the limiting support 50 is to prevent the flexible section from being deformed due to misoperation during assembly. When the screw type sediment sampler is assembled, the limiting support 50 is detached, so that sampling can be performed.

[0040] As shown in the figure, the screw type sediment sampler further comprises an operating assembly 60, which is connected with the other end of the inner tube 30, and the operating assembly 60 is used to drive the inner tube 30 to rotate.

[0041] Specifically, the operating assembly 60 is detachably connected with the inner tube 30, and when the soil sample needs to be cut, the operating assembly 60 is operated to drive the inner tube 30 to rotate. During operation, manual operation or connection of the operating assembly 60 with a driving device can be used, and the driving device drives the operating assembly 60 to rotate, so that multiple screw type sediment samplers can be rotated at the same time, improving the sampling efficiency.

[0042] As shown in Figures 1 to 2 , the operating assembly 60 includes an operating end cover 61 and an operating handrail 62. The operating end cover 61 is detachably connected with the inner tube 30. The operating handrail 62 is detachably connected with the outer peripheral wall of the operating end cover 61.

[0043] Specifically, the operation end cover 61 is connected with the inner tube 30 through a hexagonal bolt, the operation handrails 62 are two, the two operation handrails 62 are arranged in a straight line, and the two operation handrails 62 are provided with external threads, the operation end cover 61 is provided with internal threads, and the two operation handrails 62 are each provided with a protection arrangement. The operation end cover 61 is a concave hollow porous thermal sensitive resin circular closed head, and is provided with a clamping groove, which can be used to be connected with a driving device.

[0044] Further, the outer periphery of the outer tube 20 is also provided with two fixed handrails 21. Alternatively, the driving device is connected with the fixed handrails 21 and the operation handrails 62 at the same time, the outer tube 20 is moved by rotating the fixed handrails 21 or applying pressure to the fixed handrails 21, and the cutting head 10 is rotated to cut the soil sample or is pressed to cut the soil sample, at this time, the fixed handrails 21 and the operation handrails 62 are connected with the driving device as connecting pieces, and automatic sampling is realized.

[0045] As shown in Figure 2 , the operation assembly 60 further comprises a gas valve 63, which is arranged between the operation end cover 61 and the inner tube 30, and is used to adjust the gas flow in the inner tube 30.

[0046] Specifically, the gas valve 63 is arranged at the end of the inner tube 30 away from the cutting head 10, the air flow in the inner tube 30 is controlled through the gas valve 63, the gas valve 63 is one-way, the one-way gas valve 63 can facilitate the gas discharge of the inner tube 30, and prevents the gas from entering the inner tube 30, so as to form a negative pressure at the end of the inner tube 30 away from the cutting head 10, further preventing the soil sample from falling down. That is to say, the arrangement of the gas valve 63 can effectively control the air pressure in the inner tube 30, and prevent the soil sample from loosening due to air pressure change during sampling.

[0047] As shown in Figure 2 , the screw-type sediment sampler further comprises a plugging piece 70, which is used for the gas valve 63.

[0048] Specifically, the plugging piece 70 is used to plug the inner tube 30. Alternatively, the screw-type sediment sampler moves downward, the soil sample enters the inner tube 30, part of the gas in the inner tube 30 is discharged, and then the plugging piece 70 is arranged on the gas valve 63, which can further prevent the gas from entering the inner tube 30, and ensure the effect of negative pressure. At the same time, the use of the plugging piece 70 can ensure the integrity of the soil sample during transportation, which is particularly important for the case that the soil sample needs to be sent to a remote laboratory for analysis.

[0049] As shown in Figures 1 to 2 , the screw-type sediment sampler further comprises a connecting piece 80, which is connected with the outer tube 20 and the cutting head 10 at two ends respectively.

[0050] Specifically, the two ends of the connecting piece 80 are connected with the tool bit 10 and the outer tube 20 respectively, the tool bit 10 is detachably connected with the connecting piece 80, and the tool bit 10 comprises various types and is replaced according to actual needs. During assembly, the connecting piece 80 can be arranged on the outer tube 20 first, then the tool bit 10 is connected with the locking assembly 40 and the inner tube 30, the inner tube 30 is arranged in the outer tube 20, and finally the tool bit 10 is connected, so that the state of the cutting wire 42 can be observed conveniently.

[0051] From the above description, it can be seen that the embodiments of the utility model realize the following technical effects: the screw type sediment sampler comprises a tool bit 10, an outer tube 20, an inner tube 30 and a locking assembly 40, the tool bit 10 is used for inserting into a soil sample, the tool bit 10 is arranged at one end of the outer tube 20, the inner tube 30 is arranged in the outer tube 20, the inner tube 30 can rotate relative to the outer tube 20, the inner tube 30 is arranged in a spaced mode with the tool bit 10, the locking assembly 40 is accommodated in the outer tube 20, and the locking assembly 40 is located between the inner tube 30 and the tool bit 10, the locking assembly 40 has a flexible section, one end of the flexible section is connected with one end of the outer tube 20 close to the tool bit 10, the other end of the flexible section is connected with the inner tube 30, the flexible section comprises a cloth body 41 and a cutting wire 42 arranged on the outer side wall of the cloth body 41, the two ends of the cutting wire 42 are connected with the two ends of the cloth body 41 respectively, and the cutting wire 42 is used for cutting a soil sample. By arranging the tool bit 10 on the outer tube 20, arranging the locking assembly 40 in the outer tube 20, connecting the two ends of the flexible section of the locking assembly 40 with the inner tube 30 and the tool bit 10 respectively, and applying pressure to the end of the screw type sediment sampler away from the tool bit 10, the screw type sediment sampler can be partially inserted into a soil sample, the inner tube 30 can be rotated by hand, the flexible section can be screwed, the cutting wire 42 deforms in the process of screwing the flexible section, so that the soil sample is cut, and meanwhile, the arrangement of the cloth body 41 can prevent the soil sample from leaking out of the inner tube 30 when the soil sample is loose soil, thereby improving the sampling effect of the sampler.

[0052] It is to be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the example embodiments according to the present application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise, and it should be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or their combinations.

[0053] It should be noted that the terms "upper", "lower", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0054] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A screw-type sediment sampler characterized by, The utility model relates to a screw type sediment sampler, which comprises a cutter head (10) for inserting into a soil sample, an outer tube (20) with the cutter head (10) arranged at one end of the outer tube (20), an inner tube (30) arranged in the outer tube (20) and capable of rotating relative to the outer tube (20), the inner tube (30) being spaced apart from the cutter head (10), a locking assembly (40) accommodated in the outer tube (20) and located between the inner tube (30) and the cutter head (10), the locking assembly (40) having a flexible section, one end of the flexible section being connected to one end of the outer tube (20) close to the cutter head (10), the other end of the flexible section being connected to the inner tube (30), the flexible section comprising a cloth body (41) and cutting wires (42) arranged on the outer sidewall of the cloth body (41), both ends of the cutting wires (42) being connected to both ends of the cloth body (41) respectively, the cutting wires (42) being used for cutting the soil sample. The cutting wires (42) are arranged at intervals on the outer sidewall of the cloth body (41) and are arranged at an angle to the extension direction of the inner tube (30). The locking assembly (40) further comprises two connecting end heads (43), the two connecting end heads (43) being arranged at both ends of the flexible section respectively, both ends of the cutting wires (42) being connected to the two connecting end heads (43) respectively, and the two connecting end heads (43) being connected to the cutter head (10) and the inner tube (30) respectively. The connecting end head (43) of the two connecting end heads (43) that is away from the inner tube (30) is clamped or screwed to the cutter head (10). The screw type sediment sampler further comprises a limiting support (50) that is detachably connected to the inner wall of the flexible section, both ends of the limiting support (50) being connected to the two connecting end heads (43) respectively.

2. The screw-on sediment sampler of claim 1, wherein, The screw type sediment sampler further comprises an operating assembly (60) that is connected to the other end of the inner tube (30) and used for rotating the inner tube (30).

3. A screw-in sediment sampler according to claim 2, characterised in that The operating assembly (60) comprises:

4. A screw-in sediment sampler according to claim 3, characterised in that an operating end cover (61) that is detachably connected to the inner tube (30), 5. The screw-on sediment sampler of claim 3, wherein, an operating handrail (62) that is detachably connected to the outer peripheral wall of the operating end cover (61).

6. The screw-on sediment sampler of claim 1, wherein, The operating assembly (60) further comprises an air valve (63) arranged between the operating end cover (61) and the inner tube (30), the air valve (63) being used for adjusting the gas flow in the inner tube (30).

7. A screw-in sediment sampler according to claim 6, characterised in that The screw type sediment sampler further comprises a plugging member (70) used for plugging the air valve (63). ​ ​ 8. The screw-on sediment sampler of claim 7, wherein, ​ 9. A screw-in sediment sampler according to claim 8, characterised in that ​ 10. A screw-in sediment sampler according to any one of claims 1 to 9, characterized in that The screw-on sediment sampler further comprises a connecting piece (80), two ends of the connecting piece (80) are connected with the outer tube (20) and the cutter head (10) respectively.

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