Highway engineering surface loamy soil sampling device

Abstract

The utility model discloses a highway engineering surface loamy soil sampling device, relates to the field of surface loamy soil sampling, and provides the following scheme aiming at the problem that the existing surface loamy soil sampling device needs to be in direct or indirect contact with soil when a sample is stripped from a sampling appliance: the highway engineering surface loamy soil sampling device comprises a sampling main body for collecting soil, a spiral drill bit is arranged at the bottom end of the sampling main body, a sleeve is arranged outside the sampling main body in a sleeving manner, an external thread meshed with the spiral drill bit is arranged inside the sleeve, and when the spiral drill bit rotates reversely, sampling soil in the spiral drill bit is spirally extruded and separated through the external thread. According to the device disclosed by the utility model, the loamy soil sample can be collected under the condition that a sampler is not in direct or indirect contact with the loamy soil sample, and the loamy soil sample collection can be completed by one person.

Description

Technical Field

[0001] The utility model relates to the field of surface loamy soil sampling, in particular to a surface loamy soil sampling device for highway engineering. Background Art

[0002] Highway engineering refers to the work of surveying, measuring, designing, constructing, maintaining, managing, etc. of highway structures. Highway engineering structures include: subgrade, pavement, bridge, culvert, tunnel, drainage system, safety protection facilities, greening and traffic monitoring facilities, as well as houses, workshops and other service facilities used for construction, maintenance and monitoring. Among them, in the process of subgrade and pavement survey, due to the irregular and sticky characteristics of loamy soil collection, it is often difficult to collect samples after the collection by instruments, or the samples are contaminated due to indirect or direct contact with the sampling instruments, or the shape of soil sampling cannot be completely retained due to human factors.

[0003] Aiming at the problem that in the current surface loamy soil sampling device, it is necessary to directly or indirectly contact the soil when stripping the sample from the sampling instrument, we propose a surface loamy soil sampling device for highway engineering. Content of the Utility Model

[0004] The surface loamy soil sampling device for highway engineering proposed by the utility model solves the problems that in the current surface loamy soil sampling process, when stripping the sample from the sampling instrument, it is necessary to directly or indirectly contact the soil, resulting in sample contamination or the shape of soil sampling cannot be completely retained due to human factors.

[0005] In order to achieve the above object, the utility model adopts the following technical solutions:

[0006] A surface loamy soil sampling device for highway engineering includes a sampling main body for soil collection. A spiral drill bit is provided at the bottom end of the sampling main body, and a sleeve is sleeved outside the sampling main body. External threads meshing with the spiral drill bit are arranged inside the sleeve. When the spiral drill bit rotates in the reverse direction, the sampled soil in the spiral drill bit is spirally extruded and separated through the external threads.

[0007] Preferably, a group of symmetrically distributed main body grips are provided at the upper end of the sampling main body, and a sleeve buckle is provided below the main body grips.

[0008] Preferably, an L-shaped card slot is opened at the upper end of the sleeve, and a sleeve card slot elastic piece is arranged inside the card slot. The sleeve buckle is fixed by being snapped into the card slot inside the elastic piece of the sleeve card slot.

[0009] Preferably, external threads of the sleeve are provided on the outer side of the bottom of the sleeve.

[0010] Preferably, a sleeve grip is provided on the outer side of the upper end of the sleeve.

[0011] Preferably, a end cap is connected to the bottom end of the sleeve, and an internal thread of the end cap is provided on the inner side of the upper end of the end cap. The internal thread of the end cap is engaged with the external thread of the sleeve.

[0012] Preferably, the height of the end cap matches the length of the screw drill bit.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. By means of the screw drill bit sinking into the soil for sampling, the device greatly reduces the damage to the surface structure during the sampling of the surface loamy soil.

[0015] 2. The device can strip the loamy soil on the screw drill bit through the sleeve, avoiding the problems of sample contamination caused by direct or indirect contact with the soil and the failure to completely retain the shape of the soil sample due to human factors.

[0016] 3. The device can be connected by the end cap and the sleeve to form an integral body and protect the main drill bit. At the same time, the end cap can fix and expand the soil sample storage bag, facilitating sample collection.

[0017] In summary, the device can collect loamy soil samples without the sampler directly or indirectly contacting the loamy soil samples, and one person can complete the collection of loamy soil samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the combined state of the present utility model.

[0019] Figure 2 is a schematic disassembled structural diagram of the present utility model.

[0020] Figure 3 is the present utility model Figure 2 The enlarged structural diagram at A in.

[0021] Figure 4 is a schematic cross-sectional structural diagram of the present utility model.

[0022] Description of the reference numerals: 1. Sampling main body; 11. Main body grip; 12. Sleeve buckle; 13. Screw drill bit; 2. Sleeve; 21. Sleeve slot elastic piece; 22. Sleeve grip; 23. External thread of the sleeve; 24. External thread; 3. End cap; 31. Internal thread of the end cap. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] The present utility model will be further described below in conjunction with the accompanying drawings.

[0026] Referring to Figures 1 - 4 As shown, a sampling device for surface loamy soil in highway engineering includes a sampling main body 1 for soil collection. A spiral drill bit 13 is provided at the bottom end of the sampling main body 1, and a sleeve 2 is sleeved outside the sampling main body 1. An external thread 24 meshing with the spiral drill bit 13 is provided inside the sleeve 2. When the spiral drill bit 13 rotates in the reverse direction, the sampled soil in the spiral drill bit 13 is spirally extruded and separated through the external thread 24; a group of main body grips 11 symmetrically distributed are provided at the upper end of the sampling main body 1, and a sleeve buckle 12 is provided below the main body grip 11; the top main body grip 11 applies a spiral downward force to the main body screw 13 to perform surface loamy soil sampling. A sleeve grip 22 is provided on the outer side of the upper end of the sleeve 2. The sleeve grip 22 on the sleeve gives a spiral downward force to the sleeve 2, so that the internal thread 24 of the sleeve spirally descends along the spiral drill bit 13 and removes the surface loamy soil attached to the spiral drill bit 13.

[0027] Referring to Figure 2 , Figure 3 , an L-shaped card slot is provided at the upper end of the sleeve 2, and a sleeve card slot elastic piece 21 is provided inside the card slot. The sleeve buckle 12 is snapped into the card slot inside the inner side of the sleeve card slot elastic piece 21 for fixation, ensuring that the spiral drill bit 13 is completely immersed in the surface soil during surface loamy soil collection; an external thread 23 of the sleeve is provided on the outer side of the bottom of the sleeve 2, and the internal spiral thread 24 of the sleeve can strip the loamy soil sample on the spiral drill bit 13.

[0028] Refer to Figure 1 , Figure 2 , the bottom end of the sleeve 2 is connected with an end cap 3, and an internal thread 31 of the end cap is arranged on the inner side of the upper end of the end cap 3. The internal thread 31 of the end cap is meshed and connected with the external thread 23 of the sleeve. The height of the end cap 3 matches the length of the auger bit 13. The end cap 3 can be used to collect the surface loamy soil samples peeled off from the auger bit 13. The internal thread 31 of the end cap can be combined with the external thread 23 of the sleeve to protect the auger bit 13.

[0029] When the utility model is in use, first separate the end cap 3 from the sleeve 2. The end cap 3 is used to fix and expand the soil sample sampling bag, and then fix the sleeve 2 through the sleeve slot elastic piece 21 and the sleeve buckle 12 of the sleeve 2;

[0030] Then place the auger bit 13 above the surface loamy soil sampling point, press down and rotate the main body grip 11 to make the auger bit 13 spiral downward. After the auger bit 13 is completely immersed in the soil, pull out the auger bit 13;

[0031] Then, after separating the sleeve 2 from the main body 1, use the sleeve grip 22 to make the sleeve spiral down along the auger bit 13, and remove the surface loamy soil attached to the auger bit 13. The removed soil is collected by the end cap 3 that fixes the soil sample sampling bag.

[0032] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the utility model.

Claims

1. A surface loamy soil sampling device for highway engineering, comprising a sampling main body (1) for soil collection, characterized in that, A screw drill bit (13) is provided at the bottom end of the sampling main body (1), and a sleeve (2) is sleeved outside the sampling main body (1). An external thread (24) meshing with the screw drill bit (13) is provided inside the sleeve (2). When the screw drill bit (13) rotates in the reverse direction, the sampled soil in the screw drill bit (13) is extruded and separated spirally through the external thread (24).

2. The surface loamy soil sampling device for highway engineering according to claim 1, characterized in that, A group of main body grips (11) symmetrically distributed are provided at the upper end of the sampling main body (1), and a sleeve buckle (12) is provided below the main body grip (11).

3. The surface loamy soil sampling device for highway engineering according to claim 2, characterized in that, An L-shaped card slot is opened at the upper end of the sleeve (2), and a sleeve card slot elastic piece (21) is provided inside the card slot. The sleeve buckle (12) is fixed by being snapped into the card slot inside the sleeve card slot elastic piece (21).

4. The surface loamy soil sampling device for highway engineering according to claim 1, characterized in that, An external thread (23) of the sleeve is provided on the outer side of the bottom of the sleeve (2).

5. The surface loamy soil sampling device for highway engineering according to claim 1, characterized in that, A sleeve grip (22) is provided on the outer side of the upper end of the sleeve (2).

6. The surface loamy soil sampling device for highway engineering according to claim 4, characterized in that, A end cap (3) is connected to the bottom end of the sleeve (2), and an internal thread (31) of the end cap is provided on the inner side of the upper end of the end cap (3). The internal thread (31) of the end cap is meshed and connected with the external thread (23) of the sleeve.

7. The surface loamy soil sampling device for highway engineering according to claim 6, characterized in that, The height of the end cap (3) is matched with the length of the screw drill bit (13).

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