Sample protection device for geotechnical engineering investigation

Abstract

The utility model relates to the technical field of rock and soil sample storage devices, solves the problem that in the prior art, a soil sample is troublesome to package, and discloses a sample protection device for geotechnical engineering investigation, the sample protection device comprises a sample box and a plurality of retainers, a buffer layer is arranged in the sample box, a plurality of sinking grooves for the retainers to be inserted are formed in the buffer layer, and the retainers are arranged in the sinking grooves. The retainer comprises a plurality of lower supporting pieces and a base, the lower supporting pieces are connected to the surface of the base in a circumferential array mode, the lower supporting pieces are perpendicular to the plane where the surface of the base is located, the lower supporting pieces are slidably connected with the base, and a first control assembly for driving the lower supporting pieces to be close to or away from each other is arranged in the base. According to the invention, a scheme for conveniently protecting the soil sample can be provided, so that the operation efficiency of the soil sample protection procedure is improved.

Description

Technical Field

[0001] The present application relates to the technical field of geotechnical sample preservation devices, and in particular to a sample protection device for geotechnical engineering investigation. Background Art

[0002] After the soil sample is taken to the ground, it is necessary to carefully remove the soil sample together with the liner and package it according to the method specified in the specification. Specific method: remove about 20mm from both ends of the soil sample, add a metal disc with the same cross-sectional area as the soil sample, and then pour wax liquid. After solidification, buckle the rubber or plastic protective tube, and then seal it with adhesive tape. When transporting soil samples, the original soil tube or sealed soil block should be packed into wooden boxes. When packing, the gap between the soil sample and the wooden box should be filled with straw or sawdust to avoid damage during transportation due to shock, freezing and rain.

[0003] With regard to the above-mentioned related technologies, the operation process is time-consuming and laborious, and the samples are easily shaken during transportation. Utility Model Content

[0004] In order to improve the problem of the prior art that it is troublesome to package soil samples, the present application provides a sample protection device for geotechnical engineering investigation.

[0005] The following technical solutions are adopted:

[0006] A sample protection device for geotechnical engineering investigation includes a sample box and a plurality of retainers, wherein a buffer layer is arranged in the sample box, a plurality of sink grooves for inserting the retainers are opened in the buffer layer, the retainer includes a plurality of lower support plates and a base, a plurality of the lower support plates are connected to the surface of the base in a circular array, the lower support plates are perpendicular to the plane where the surface of the base is located, the lower support plates are slidably connected to the base, a first control component is arranged in the base to drive the plurality of the lower support plates to approach or move away from each other, and the transverse cross-section of the lower support plates is an arc.

[0007] By adopting the above technical solution, the soil sample is supported laterally by a plurality of lower support sheets and supported at the bottom by the base, thereby supporting the soil sample circumferentially and at the bottom to maintain the shape of the soil sample. The buffer layer in the sample box reduces rigid collision of the soil sample during transportation. In this way, a more convenient solution for protecting the soil sample is provided to increase the efficiency of the soil sample protection process.

[0008] Optionally, the base is provided with a slide groove, which is opened along the radial direction of the base, and a slider is provided at the bottom of the lower support plate, and the slider is slidably connected in the slide groove.

[0009] Optionally, the slider is in an inverted T-shape, and the longitudinal cross-section of the slide groove corresponds to the shape of the slider.

[0010] By adopting the above technical solution, the stability of the lower support plate during sliding is improved by cooperating with the inverted T-shaped sliding block and the sliding groove.

[0011] Optionally, the first control component includes a screw, a first sleeve and a plurality of first connecting rods, the screw is vertically rotatably connected to the base, the screw passes through the first sleeve, the first sleeve is threadedly connected to the screw, the first connecting rod is circumferentially arranged outside the first sleeve, one end of the first connecting rod is rotatably connected to the first sleeve, and the other end is rotatably connected to the bottom of the lower support plate.

[0012] By adopting the above technical solution, the screw is rotated, and since the first sleeve is threadedly connected to the screw, the first sleeve moves along the length direction of the screw, and after the first sleeve moves, the corresponding lower support pieces are driven to move through a plurality of first connecting rods, thereby providing a solution for simultaneously controlling the lower support pieces to move closer to or farther from each other.

[0013] Optionally, the base includes a shell and a cover, the cover is rotatably connected to the shell, the screw is rotatably connected in the shell, and one end of the screw is connected to the center of the cover.

[0014] By adopting the above technical solution, the screw rod can be driven to rotate by rotating the cover body, and the hollowness of the shell body makes way for the movement of the first connecting rods.

[0015] Optionally, the sample protection device also includes a support cover, which includes a connecting rod, a plurality of upper support plates and a second control component, one end of the connecting rod is connected to a plurality of telescopic rods, an end of the telescopic rod away from the connecting rod is connected to the corresponding upper support plates, the upper support plates correspond to the lower support plates in position, and the second control component controls the plurality of upper support plates to move closer to or further away from each other.

[0016] By adopting the above technical solution, the upper opening is sealed by the support cover, thereby further protecting the soil sample.

[0017] Optionally, the second control assembly includes a second sleeve and a plurality of second connecting rods, the second sleeve is slidably connected to the connecting rod, the plurality of second connecting rods are circumferentially arranged on the second sleeve, one end of the second connecting rod is rotatably connected to the second sleeve, and the other end is rotatably connected to the upper support rod.

[0018] By adopting the above technical solution, a solution is provided for controlling a plurality of upper supporting plates to move towards or away from each other at the same time.

[0019] Optionally, an elastic member is provided in the telescopic rod so that the upper supporting plate always has a tendency to move toward the direction where the connecting rod is located.

[0020] In summary, the present application includes at least one of the following beneficial effects:

[0021] 1. Through the cooperation of the support cover, the upper support sheet and the base, the soil sample is supported circumferentially and at the top and bottom to maintain the shape of the soil sample;

[0022] 2. The buffer layer in the sample box can reduce rigid collision during the transportation of soil samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 1 is a schematic diagram showing the overall cross-sectional structure of this embodiment;

[0024] Figure 2 is a schematic diagram of the retainer structure;

[0025] Figure 3 1 is a schematic diagram showing the cross-sectional structure of a retainer;

[0026] Figure 4 It is a schematic diagram of the enlarged structure at A;

[0027] Figure 5 This is a schematic diagram of the enlarged structure at point B.

[0028] Explanation of the accompanying drawings: 1. sample box; 11. box body; 12. box cover; 13. buffer layer; 131. sink; 2. retainer; 21. lower support plate; 211. side stop; 2111. slot; 212. bottom support; 213. slider; 22. base; 221. shell; 222. slide groove; 2221. through groove; 223. connecting ring groove; 224. cover body; 2241. connecting ring; 3. first control component; 31. screw; 32. first sliding sleeve; 33. first connecting rod; 4. support cover; 41. connecting rod; 411. connecting plate; 42. upper support plate; 421. plug; 43. telescopic rod; 431. tube body; 432. rod body; 433. elastic member; 5. second control component; 51. second sliding sleeve; 52. second connecting rod. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 To Attachment Figure 5 This application is described in further detail.

[0030] Reference Figure 1 and Figure 2, the embodiment of the present application discloses a sample protection device for geotechnical engineering investigation, including a sample box 1 and a plurality of retainers 2. A buffer layer 13 is provided in the sample box 1, and the buffer layer 13 fills the sample box 1. A plurality of sinks 131 for the retainers 2 to be inserted are provided in the buffer layer 13, and the sinks 131 are larger than the volume occupied by the retainers 2. The retainer 2 includes a plurality of lower support plates 21 and a base 22, wherein the plurality of lower support plates 21 are connected to the surface of the base 22 in a circular array, the lower support plates 21 are perpendicular to the plane where the surface of the base 22 is located, the lower support plates 21 are slidably connected to the base 22, and a first control component 3 for driving the plurality of lower support plates 21 to move closer to or away from each other is provided in the base 22, and the transverse cross-section of the lower support plates 21 is an arc. When the soil sample needs to be held, the retainer 2 is moved from top to bottom to place a plurality of lower support sheets 21 around the soil sample, and the base 22 is made to abut against one end of the soil body. The first control component 3 is used to control the plurality of lower support sheets 21 to approach each other, clamp the soil sample from the outside to the inside, and continue to adjust the position of the lower support sheets 21 after turning it over until the soil sample is supported; then the retainer 2 together with the soil sample is placed in the corresponding trough 131 of the sample box 1 to protect the soil sample during transportation.

[0031] However, in the prior art, after the soil sample is taken to the ground, it is necessary to remove the soil sample together with the liner and package it. The specific method is as follows: about 20 mm is removed from each end of the soil sample, and a metal disc with the same cross-sectional area as the soil sample is added, and then wax liquid is poured. After solidification, a rubber or plastic protective tube is buckled, and then the mouth is sealed with adhesive tape. When transporting soil samples, the original soil tube or the sealed soil block should be packed into a wooden box. In comparison, the present application has the innovative feature of setting a plurality of lower support plates 21 to provide lateral support for the soil sample, and a base 22 is used for bottom support. The buffer layer 13 in the sample box 1 reduces rigid collision of the soil sample during transportation.

[0032] Reference Figure 1 Further, the sample box 1 comprises a box body 11 and a box cover 12. One side of the box cover 12 is rotatably connected to the box body 11, and the box body 11 is provided with a lock connected to the box cover 12. The box cover 12 is also covered with a buffer layer 13.

[0033] Reference Figure 3 and Figure 4Furthermore, the base 22 includes a shell 221 and a cover 224. The shell 221 is in the shape of a truncated cone, and the central part of the shell 221 is raised to form a support platform, which is circular. The shell 221 is hollow and one end is connected to the outside, and the lower support sheet 21 is slidably connected to the other end of the shell 221. The cover 224 is a circular sheet corresponding to the shell 221, and the cover 224 covers the through end of the shell 221, and the cover 224 is rotatably connected to the shell 221. The cover 224 is circumferentially provided with a connecting ring 2241, and the surface of the shell 221 is provided with a connecting ring groove 223 for the connecting ring 2241 to penetrate and rotate, and the longitudinal section of the connecting ring 2241 is an inverted L-shaped.

[0034] Reference Figure 3 and Figure 4 Furthermore, a plurality of slide grooves 222 are provided on the surface of the shell 221, and the slide grooves 222 are provided along the radial direction of the shell 221. The lower support sheet 21 includes a side stop 211 and a bottom support 212, and one end of the side stop 211 is vertically connected to one end of the bottom support 212, so that the longitudinal cross section of the lower support sheet 21 is L-shaped. The side stop 211 is a vertically arranged arc-shaped sheet, and the bottom support 212 is a horizontally arranged fan-shaped sheet. A slider 213 is provided on the lower surface of the bottom support 212, and the slider 213 is slidably connected to the slide groove 222. The slider 213 is an inverted T-shape, and the longitudinal cross section of the slide groove 222 corresponds to the shape of the slider 213.

[0035] Reference Figure 3 and Figure 4 Further, the first control component 3 includes a screw rod 31, a first sleeve 32 and a plurality of first connecting rods 33. The screw rod 31 is vertically rotatably connected in the housing 221. The screw rod 31 passes through the first sleeve 32, and the first sleeve 32 is threadedly connected to the screw rod 31. The first connecting rod 33 is circumferentially arranged outside the first sleeve 32, one end of the first connecting rod 33 is rotatably connected to the first sleeve 32, and the other end is rotatably connected to the bottom of the lower support plate 21. A through groove 2221 of the same length is provided at the bottom of the slide groove 222, and the through groove 2221 is connected to the slide groove 222. The first connecting rod 33 passes through the through groove 2221 and is connected to the lower support plate 21. One end of the screw rod 31 is fixedly connected to the center of the cover body 224.

[0036] Reference Figure 3 and Figure 5, further, the sample protection device also includes a support cover 4. The support cover 4 includes a connecting rod 41, a plurality of upper support sheets 42 and a second control assembly 5. A circular connecting sheet 411 is provided at one end of the connecting rod 41, and an end cap is provided at the other end for convenient handholding. A plurality of telescopic rods 43 are horizontally and circumferentially arranged at the connecting sheet 411, and the telescopic rod 43 includes a tube body 431 and a rod body 432, one end of the rod body 432 is connected to the connecting sheet 411, and the other end is inserted into the tube body 431, and the rod body 432 can slide in the tube body 431, and the end of the tube body 431 away from the rod body 432 is connected to the corresponding upper support sheet 42. Further, an elastic member 433 is provided in the telescopic rod 43, and the elastic member 433 is a spring, one end of the elastic member 433 is connected to the inner wall of the tube, and the other end is connected to one end of the connecting rod 41 body. The elastic member 433 makes the upper support sheet 42 always have a tendency to move in the direction of the connecting rod 41. The upper support sheet 42 is vertically arranged, and the transverse cross section of the upper support sheet 42 is arc-shaped. The upper support sheet 42 corresponds to the lower support sheet 21. The second control component 5 controls the plurality of upper support sheets 42 to move closer to or farther from each other.

[0037] Reference Figure 3 and Figure 5 Further, the second control assembly 5 includes a second sleeve 51 and a plurality of second connecting rods 52. The connecting rod 41 is a bare rod. The second sleeve 51 is slidably connected to the connecting rod 41, and a plurality of second connecting rods 52 are circumferentially arranged on the second sleeve 51. One end of the second connecting rod 52 is rotatably connected to the second sleeve 51, and the other end is rotatably connected to the upper support rod.

[0038] Reference Figure 3 and Figure 5 Furthermore, an insert block 421 is provided on the inner wall of the upper support sheet 42, and the insert block 421 is provided perpendicular to the length direction of the upper support sheet 42. A slot 2111 is provided on the lower support sheet 21 for inserting the insert block 421. The insert block 421 can be inserted into the slot 2111 by moving the upper support sheet 42 horizontally. The shape of the insert block 421 is preferably an inverted trapezoid, and the shape of the slot 2111 corresponds to the insert block 421.

[0039] The implementation principle of a sample protection device for geotechnical engineering investigation in the embodiment of the present application is as follows:

[0040] When the soil sample needs to be protected, first remove the support cover 4 of the holder 2; turn the base 22 upside down so that the space enclosed by the lower support sheets 21 can be placed on the outside of the soil sample from top to bottom, rotate the cover 224 to rotate the screw 31, so that the lower support sheets 21 gradually approach the soil until they abut; hold the soil sample by hand, turn the holder 2, return the base 22 to the right position, and continue to adjust the cover 224 until the abutment between the lower support sheet 21 and the soil sample is sufficiently firm; slide the second sliding sleeve 51 on the support cover 4 to move the upper support sheets 42 away from each other to a suitable position, and then put the support cover 4 on the outside of the lower support sheets 21 from top to bottom, align the insert 421 and the slot 2111, release the second slider 213, and the support cover 4 is connected to the lower support sheets 21 under the action of elastic force. Then, place the holder 2 in the corresponding sink 131 of the sample box 1. Therefore, a more convenient solution for protecting soil samples is provided to increase the efficiency of the soil sample protection process operation.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sample protection device for geotechnical engineering investigation, characterized in that: The invention comprises a sample box (1) and a plurality of retainers (2), wherein a buffer layer (13) is arranged in the sample box (1), a plurality of sink grooves (131) for inserting the retainers (2) are provided in the buffer layer (13), the retainers (2) comprise a plurality of lower support plates (21) and a base (22), a plurality of the lower support plates (21) are connected to the surface of the base (22) in a circular array, the lower support plates (21) are perpendicular to the plane where the surface of the base (22) is located, the lower support plates (21) are slidably connected to the base (22), a first control component (3) for driving the plurality of the lower support plates (21) to move closer to or farther from each other is arranged in the base (22), and the transverse cross section of the lower support plates (21) is arc-shaped.

2. A sample protection device for geotechnical engineering investigation according to claim 1, characterized in that: The base (22) is provided with a slide groove (222), and the slide groove (222) is provided along the radial direction of the base (22). A slider (213) is provided at the bottom of the lower support plate (21), and the slider (213) is slidably connected in the slide groove (222).

3. A sample protection device for geotechnical engineering investigation according to claim 2, characterized in that: The sliding block (213) is in an inverted T-shape, and the longitudinal cross-section of the sliding groove (222) corresponds to the shape of the sliding block (213).

4. The sample protection device for geotechnical engineering investigation according to claim 1, characterized in that: The first control component (3) comprises a screw rod (31), a first sliding sleeve (32) and a plurality of first connecting rods (33); the screw rod (31) is vertically rotatably connected to the base (22); the screw rod (31) passes through the first sliding sleeve (32); the first sliding sleeve (32) is threadedly connected to the screw rod (31); the first connecting rod (33) is circumferentially arranged outside the first sliding sleeve (32); one end of the first connecting rod (33) is rotatably connected to the first sliding sleeve (32); and the other end is rotatably connected to the bottom of the lower support plate (21).

5. A sample protection device for geotechnical engineering investigation according to claim 4, characterized in that: The base (22) comprises a shell (221) and a cover (224); the cover (224) is rotatably connected to the shell (221); the screw rod (31) is rotatably connected to the shell (221); one end of the screw rod (31) is connected to the center of the cover (224).

6. The sample protection device for geotechnical engineering investigation according to claim 1, characterized in that: The sample protection device further comprises a support cover (4), the support cover (4) comprising a connecting rod (41), a plurality of upper support sheets (42) and a second control component (5), one end of the connecting rod (41) is connected to a plurality of telescopic rods (43), one end of the telescopic rod (43) away from the connecting rod (41) is connected to the corresponding upper support sheet (42), the upper support sheet (42) corresponds to the position of the lower support sheet (21), and the second control component (5) controls the plurality of upper support sheets (42) to move closer to or farther away from each other.

7. A sample protection device for geotechnical engineering investigation according to claim 6, characterized in that: The second control assembly (5) comprises a second sliding sleeve (51) and a plurality of second connecting rods (52), wherein the second sliding sleeve (51) is slidably connected to the connecting rod (41), and the plurality of second connecting rods (52) are circumferentially arranged on the second sliding sleeve (51), and one end of the second connecting rod (52) is rotatably connected to the second sliding sleeve (51), and the other end is rotatably connected to the upper support plate (42).

8. The sample protection device for geotechnical engineering investigation according to claim 6, characterized in that: The telescopic rod (43) is provided with an elastic member (433) which enables the upper support plate (42) to always have a tendency to move in the direction where the connecting rod (41) is located.

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