Soil sample collector

Abstract

The utility model relates to the technical field of monitoring sample collection, and discloses a soil sample collector which comprises an inner cylinder and an outer cylinder detachably arranged outside the inner cylinder in a sleeving mode, the inner cylinder is of a cylindrical structure with an opening in the bottom, the outer cylinder is of a vertically-through cylindrical structure, and a plurality of first blind holes are distributed in the inner side wall of the top end of the outer cylinder; the first blind holes are distributed at intervals along the axis direction of the outer cylinder; a plurality of second blind holes are formed in the end cover in the radial direction, positioning pins are connected into the second blind holes in a sliding mode, and the multiple positioning pins are detachably connected with the multiple first blind holes in a one-to-one correspondence mode; and the operating rod is fixedly connected to the upper surface of the end cover. In the using process, due to blocking of the inner cylinder, the first blind hole and the second blind hole are not exposed to the outside and are not in contact with surrounding soil, and the possibility that the internal structure is rusted is reduced. The first magnet and the second magnet are matched with each other, so that inconvenience caused by long-distance operation in the prior art can be avoided, and operability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of monitoring sample collection, in particular to a soil sample collector. Background Art

[0002] A soil sample collector is a tool specially designed for obtaining soil samples. Accurate and efficient collection of soil samples is crucial in fields such as environmental monitoring, agricultural research, and geological exploration.

[0003] The patent with announcement number CN220650135U discloses a decomposable soil sample collector. When installing the drill bit, the outer cylinder is also pulled upward and the drill bit is put on the mounting head. Then the outer cylinder is loosened and pushed by the pressure of the spring rebound. The outer cylinder cooperates with the guide frame to drive the fixing pin to extend outward, so that the fixing pin is inserted into the fixing hole on the drill bit, and then the drill bit is fixed on the mounting head, so that the drill bit is firmly fixed after installation. The above method replaces the existing threaded connection structure between the drill bit and the rod body to avoid looseness between the drill bit and the rod body.

[0004] However, this patent still has the following defects: on the one hand, the fixing hole is a through hole set on the drill bit. During the soil sampling process, the moisture in the soil can easily enter the interior of the rod body through the fixing hole, causing the guide frame, fixing pin, spring and other components to rust; on the other hand, during the installation and removal of the drill bit, it is necessary to cooperate with the pulling of the upper end of the outer cylinder for operation, and the connection position of the fixing hole and the fixing pin is at the lower end of the outer cylinder during installation, which is inconvenient during operation.

[0005] In view of this, how to change the current situation that the collector in the above-mentioned prior art is easy to install and disassemble but is easy to corrode and inconvenient to operate has become a technical problem that technical personnel in this field need to solve urgently. Utility Model Content

[0006] The utility model aims to provide a soil sample collector to overcome the disadvantages of the above situation.

[0007] In order to achieve the above purpose, the technical solution of the utility model is:

[0008] A soil sample collector, comprising:

[0009] An inner cylinder and an outer cylinder detachably sleeved outside the inner cylinder, wherein the inner cylinder is a cylindrical structure with an opening at the bottom, and the outer cylinder is a cylindrical structure through from top to bottom, and a plurality of first blind holes are arranged on the inner side wall of the top end of the outer cylinder, and the first blind holes are arranged at intervals along the axis direction of the outer cylinder;

[0010] An end cover, wherein a plurality of second blind holes are arranged in a radial direction of the end cover, a positioning pin is slidably connected in the second blind hole, and the plurality of positioning pins are detachably connected to the plurality of first blind holes in a one-to-one correspondence; and

[0011] An operating rod is fixedly connected to the upper surface of the end cover.

[0012] Furthermore, it also includes:

[0013] an elastic member disposed in the second blind hole, wherein two ends of the elastic member are respectively fixedly connected to the end wall of the second blind hole and one end of the positioning pin, and the elastic member is used to drive the other end of the positioning pin to protrude out of the second blind hole; and

[0014] A reaction force component is used for selectively overcoming the elastic force of the elastic member to embed the positioning pin into the second blind hole.

[0015] Furthermore, the reaction force component comprises:

[0016] A first magnet fixedly connected to the other end of the positioning pin; and

[0017] A second magnet is detachably connected to the peripheral side of the outer cylinder, and the magnetic poles of the second magnet and the facing surface of the first magnet are the same.

[0018] Furthermore, the outer side wall of the top end of the outer tube extends outward to form a raised portion, and the first blind hole is located in the raised portion;

[0019] The outer side wall of the bottom end of the end cover is recessed inward to form a recessed portion, the second blind hole is located in the recessed portion, and the recessed portion is snap-fitted with the raised portion.

[0020] Furthermore, the inner wall of the protrusion is provided with a plurality of sliding notches, and the plurality of sliding notches are arranged one by one above the first blind hole. The sliding notch is provided with an inclined surface, and the inclined surface is inclined from top to bottom toward the axial direction of the outer cylinder, and the inclined surface is slidably connected to the first magnet.

[0021] Furthermore, the end cover cloth is provided with a plurality of first air holes, and the top cover cloth of the inner tube is provided with a plurality of second air holes, and the plurality of first air holes and the plurality of second air holes are arranged in one-to-one correspondence.

[0022] Furthermore, the inner cylinder comprises two cylinder halves which are snap-fitted with each other, a protrusion is provided on the edge of one side wall of the cylinder half, a groove is provided on the other edge of the cylinder half, the protrusion matches the groove, and the top cover of the cylinder half is provided with the second air vent.

[0023] Furthermore, cutting teeth are provided at the bottom of the outer cylinder.

[0024] Compared with the prior art, the utility model has at least the following advantages:

[0025] During use, by installing the inner tube inside the outer tube and embedding the positioning pin in the second blind hole, the end cap and the top of the outer tube can be opposite and close to each other until the second blind hole and the first blind hole are opposite, and the positioning pin is further embedded in the second blind hole and the first blind hole at the same time, thereby realizing the connection process between the end cap and the top of the outer tube. During use, due to the obstruction of the inner tube, the first blind hole and the second blind hole are not exposed to the outside world and have no contact with the surrounding soil, reducing the possibility of rusting of the internal structure.

[0026] The method of using the first magnet and the second magnet in coordination can avoid the inconvenience caused by long-distance operation in the prior art and improve operability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 This is a schematic diagram of the structure of the soil sample collector of the utility model when the second magnet is not used;

[0029] Figure 2 It is a front cross-sectional view of the soil sample collector of the utility model when the second magnet is not used;

[0030] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle A area;

[0031] Figure 4 This is an exploded view of the soil sample collector of the utility model;

[0032] Figure 5 For this utility model Figure 4 A partial enlarged view of the middle B area;

[0033] Figure 6 This is a schematic diagram of the overall structure of the soil sample collector of the utility model;

[0034] Figure 7 It is a schematic cross-sectional view of the whole soil sample collector of the utility model;

[0035] Figure 8 For this utility model Figure 7 A partial enlarged view of the middle C area;

[0036] Fig. 9 For this utility model Figure 7 A partial enlarged view of the D area in the middle.

[0037] Figure numerals: 1, inner cylinder; 2, outer cylinder; 3, first blind hole; 4, end cover; 5, second blind hole; 6, positioning pin; 7, operating rod; 8, elastic member; 9, first magnet; 10, second magnet; 11, raised portion; 12, recessed portion; 13, sliding notch; 14, stopper; 15, first air hole; 16, second air hole; 17, cutting teeth; 101, cylinder half body. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0040] Reference Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 The utility model provides a soil sample collector, comprising an inner cylinder 1, an outer cylinder 2, an end cover 4 and an operating rod 7. The outer cylinder 2 is detachably sleeved on the outside of the inner cylinder 1. The inner cylinder 1 is a cylindrical structure with an opening at the bottom, and the outer cylinder 2 is a cylindrical structure that is through from top to bottom. The inner side wall of the top of the outer cylinder 2 is provided with a plurality of first blind holes 3, and the first blind holes 3 are arranged at intervals along the axial direction of the outer cylinder 2. Original sampling is a technical operation for obtaining samples in geotechnical tests, which aims to maintain the original structure and moisture content of the soil sample. Original sampling minimizes the disturbance to the original structure and state of the soil sample during the sampling process to obtain a soil sample that can represent the actual condition of the stratum. In the utility model, by designing the structure of the inner cylinder 1 and the outer cylinder 2, after each sampling is completed, the inner cylinder 1 is taken out to realize the current soil sample collection process, and the next soil sample collection process can be realized by replacing the next inner cylinder 1. In the above manner, the soil sample collected each time is separated from other soil samples, which can improve the data accuracy of soil sample collection. The top end of the outer cylinder 2 of the utility model is detachably connected to the end cover 4, and a plurality of second blind holes 5 are arranged in the radial direction of the end cover 4. Positioning pins 6 are slidably connected in the second blind holes 5. The plurality of positioning pins 6 are detachably connected to the plurality of first blind holes 3 in a one-to-one correspondence; the operating rod 7 is arranged in the vertical direction and presents a "T"-shaped structure, and the operating rod 7 is fixedly connected to the upper surface of the end cover 4.

[0041] During use, by installing the inner cylinder 1 inside the outer cylinder 2 and embedding the positioning pin 6 in the second blind hole 5, the end cap 4 can be made to face the top of the outer cylinder 2 and approach each other until the second blind hole 5 faces the first blind hole 3, and the positioning pin 6 is further embedded in the second blind hole 5 and the first blind hole 3 at the same time, thereby achieving the connection process between the end cap 4 and the top of the outer cylinder 2. During use, due to the obstruction of the inner cylinder 1, the first blind hole 3 and the second blind hole 5 are not exposed to the outside world and have no contact with the surrounding soil, reducing the possibility of rusting of the internal structure.

[0042] Preferably, the utility model further includes an elastic member 8 and a reaction force assembly. The elastic member 8 is arranged in the second blind hole 5. The elastic member 8 is preferably a compression spring. The two ends of the elastic member 8 are respectively fixedly connected to the end wall of the second blind hole 5 and one end of the positioning pin 6. The elastic member 8 is used to drive the other end of the positioning pin 6 to protrude from the second blind hole 5; the reaction force assembly is used to selectively overcome the elastic force of the elastic member 8 so that the positioning pin 6 is embedded in the second blind hole 5. When the end cover 4 is connected to the outer cylinder 2, the other end of the positioning pin 6 is driven to protrude from the second blind hole 5 and embedded in the first blind hole 3, thereby realizing the connection between the end cover 4 and the outer cylinder 2. When the end cover 4 is disconnected from the outer cylinder 2, the reaction force assembly overcomes the elastic force of the elastic member 8, so that the positioning pin 6 can be completely embedded in the second blind hole 5, and the end cover 4 and the outer cylinder 2 can be separated.

[0043] Optionally, in order to facilitate the soil sampling process, the outer cylinder 2 is provided with a plurality of first air holes 15, and the top cover of the inner cylinder 1 is provided with a plurality of second air holes 16, and the plurality of first air holes 15 and the plurality of second air holes 16 are arranged one by one. In order to facilitate the soil cutting process, the outer cylinder 2 of the utility model is provided with cutting teeth 17 at the bottom.

[0044] Specifically, refer to Figure 2 , Figure 3 , Figure 7 and Figure 8 The reaction force assembly of the utility model includes a first magnet 9 and a second magnet 10. The first magnet 9 is fixedly connected to the other end of the positioning pin 6; the second magnet 10 is detachably connected to the peripheral side of the outer cylinder 2, and the magnetic poles of the second magnet 10 and the first magnet 9 on the opposite sides are the same. The outer wall of the top end of the outer cylinder 2 extends outward to form a protrusion 11, and the first blind hole 3 is located in the protrusion 11; the outer wall of the bottom end of the end cover 4 is recessed inward to form a recess 12, and the second blind hole 5 is located in the recess 12, and the recess 12 is engaged with the protrusion 11.

[0045] Preferably, refer to Figure 5The inner wall of the raised portion 11 is provided with a plurality of sliding notches 13, and the plurality of sliding notches 13 are arranged one by one above the first blind hole 3. The sliding notches 13 are provided with an inclined surface, and the inclined surface is inclined from top to bottom toward the axial direction of the outer tube 2, and the inclined surface is slidably connected to the first magnet 9.

[0046] When the end cap 4 is connected to the outer cylinder 2, the positioning pin 6 and the first magnet 9 are directed toward the end of the second blind hole 5 by manpower, so that the first magnet 9 slides to the inclined surface, and then the end cap 4 and the outer cylinder 2 are brought close to each other. During the sliding process of the first magnet 9 on the inclined surface, the elastic member 8 is compressed, and the first magnet 9 and the positioning pin 6 are embedded in the second blind hole 5 until the second blind hole 5 is opposite to the first blind hole 3. At this time, the other end of the first magnet 9 and the positioning pin 6 are embedded in the first blind hole 3 under the action of the elastic member 8 to realize the connection process of the end cap 4 and the outer cylinder 2. It should be noted that the second magnet 10 is not required in the connection process of the end cap 4 and the outer cylinder 2.

[0047] When the connection between the end cover 4 and the outer cylinder 2 is released, the second magnet 10 is sleeved on the peripheral side of the protrusion 11 so that the second magnet 10 and the first magnet 9 are opposite to each other. At this time, a mutual repulsive force is generated between the second magnet 10 and the first magnet 9, which can overcome the elastic force of the elastic member 8 so that the first magnet 9 and the positioning pin 6 are completely embedded in the second blind hole 5. Then, the end cover 4 and the outer cylinder 2 are moved away from each other to release the connection between the end cover 4 and the outer cylinder 2.

[0048] The method of using the first magnet 9 and the second magnet 10 in coordination can avoid the inconvenience caused by long-distance operation in the prior art and improve operability.

[0049] Reference Figure 7 and Fig. 9 In the utility model, the inner wall of the outer cylinder 2 is provided with an L-shaped stopper 14, the stopper 14 is clamped with the bottom of the inner cylinder 1, and the top of the inner cylinder 1 is clamped with the lower surface of the end cover 4, thereby achieving the fixing effect of the inner cylinder 1.

[0050] Preferably, the inner cylinder 1 comprises two cylinder halves 101 which are snap-fitted to each other, a protrusion is provided on one side wall edge of the cylinder half body 101, a groove is provided on the other edge of the cylinder half body 101, the protrusion matches the groove, and a second air vent 16 is provided on the top cover of the cylinder half body 101.

[0051] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply 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 understood as a limitation on the present invention.

[0052] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A soil sample collector, characterized in that: include: An inner cylinder (1) and an outer cylinder (2) detachably sleeved on the outer side of the inner cylinder (1), wherein the inner cylinder (1) is a cylindrical structure with an open bottom, and the outer cylinder (2) is a cylindrical structure through-through from top to bottom, and a plurality of first blind holes (3) are arranged on the inner side wall of the top end of the outer cylinder (2), and the first blind holes (3) are arranged at intervals along the axial direction of the outer cylinder (2); An end cover (4), wherein the end cover (4) is provided with a plurality of second blind holes (5) in a radial direction, wherein positioning pins (6) are slidably connected in the second blind holes (5), and the plurality of positioning pins (6) are detachably connected to the plurality of first blind holes (3) in a one-to-one correspondence; and An operating rod (7) is fixedly connected to the upper surface of the end cover (4).

2. The soil sample collector according to claim 1, characterized in that: Also includes: an elastic member (8) disposed in the second blind hole (5), the two ends of the elastic member (8) being respectively fixedly connected to the end wall of the second blind hole (5) and one end of the positioning pin (6), the elastic member (8) being used to drive the other end of the positioning pin (6) to protrude out of the second blind hole (5); and A reaction force component for selectively overcoming the elastic force of the elastic member (8) so that the positioning pin (6) is embedded in the second blind hole (5).

3. The soil sample collector according to claim 2, characterized in that: The reaction force component comprises: A first magnet (9) fixedly connected to the other end of the positioning pin (6); and A second magnet (10) is detachably connected to the peripheral side of the outer cylinder (2), and the magnetic poles of the second magnet (10) and the first magnet (9) on the opposite sides are the same.

4. The soil sample collector according to claim 3, characterized in that: The outer side wall of the top end of the outer cylinder (2) extends outward to form a protrusion (11), and the first blind hole (3) is located in the protrusion (11); The outer side wall of the bottom end of the end cover (4) is recessed inward to form a recessed portion (12), the second blind hole (5) is located in the recessed portion (12), and the recessed portion (12) is snap-fitted with the raised portion (11).

5. The soil sample collector according to claim 4, characterized in that: The inner wall of the protruding portion (11) is provided with a plurality of sliding notches (13), and the plurality of sliding notches (13) are arranged one by one above the first blind hole (3). The sliding notches (13) are provided with an inclined surface, and the inclined surface is inclined from top to bottom toward the axial direction of the outer cylinder (2), and the inclined surface is slidably connected to the first magnet (9).

6. The soil sample collector according to claim 1, characterized in that: An L-shaped stopper (14) is arranged on the inner wall of the outer cylinder (2) opposite to the bottom of the inner cylinder (1); the stopper (14) is clamped with the bottom of the inner cylinder (1); and the top of the inner cylinder (1) is in contact with the lower surface of the end cover (4).

7. The soil sample collector according to claim 1, characterized in that: The end cover (4) is provided with a plurality of first air holes (15), and the top cover of the inner cylinder (1) is provided with a plurality of second air holes (16), and the plurality of first air holes (15) and the plurality of second air holes (16) are arranged in a one-to-one correspondence.

8. The soil sample collector according to claim 7, characterized in that: The inner cylinder (1) comprises two cylinder halves (101) that are snap-fitted with each other, a protrusion is provided on the edge of one side wall of the cylinder half-body (101), a groove is provided on the other edge of the cylinder half-body (101), the protrusion is matched with the groove, and the top cover of the cylinder half-body (101) is provided with the second air vent (16).

9. The soil sample collector according to any one of claims 1 to 8, characterized in that: The bottom of the outer cylinder (2) is provided with cutting teeth (17).

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