Sampling device for grouting model test

Abstract

The utility model provides a sampling device for a grouting model test, which comprises a moving mechanism and a cutting ring mechanism which are connected through a connecting mechanism, the moving mechanism comprises an assembly frame, and a drill rod and the cutting ring mechanism are respectively connected in the assembly frame through a sliding mechanism; a plurality of layers of cutting rings are arranged on the cutting ring mechanisms, the multiple layers of cutting ring mechanisms are connected through connecting rods located on the connecting mechanism, and a drill bit is connected to the cutting ring on the bottommost layer; the lower portion of the connecting mechanism is connected with an outer protection cylinder arranged on the periphery of the cutting ring in a sleeving mode, and the drill bit forms a working range along the bottom of the outer protection cylinder and surrounding the outer protection cylinder; and the closed grouting box is located below the assembly frame, and after the drill bit completes drilling sampling along the grouting box, sampling at a plurality of different heights in a drilling sample is carried out through the cutting ring. According to the sampling device, the grouting process is not damaged, the whole sample is not damaged, meanwhile, sampling in the grouting box at different positions and different depths is achieved, and the problem that sampling in the grouting model sample is difficult is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field among grouting sampling, especially the sampling device for grouting model test. BACKGROUND

[0002] In the research process of grouting material, the most basic requirement of material is to solve engineering problems, so the field actual simulation research should be carried out as far as possible for grouting material, but engineering environment is complex, and some projects do not support field test, so it is very necessary to carry out necessary test simulation in the room, and it has considerable research significance. The simulation of injection test is mainly grouting box simulation, and the main box body mainly simulates the diffusion of slurry under different conditions and the strength of stone body of slurry solidification different materials. However, a problem is caused, how to take out the corresponding test piece in the closed box. At present, there is little research on this aspect, and the patent CN108956195A studies the sampling of sand soil, but it needs to be pre-buried, so the pre-buried part will affect the diffusion of slurry to some extent. At present, there is no research on the equipment for sampling of different heights and different radii. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a sampling device for grouting model test, especially sampling of mortar in a sealed space.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme.

[0005] The sampling device for grouting model test comprises a moving mechanism and a ring cutter mechanism connected through a connecting mechanism, the moving mechanism comprises an assembly frame, a drill rod and the ring cutter mechanism are connected in the assembly frame through a sliding mechanism respectively;

[0006] A plurality of layers of ring cutters are arranged on the ring cutter mechanism, the plurality of layers of ring cutter mechanisms are connected through connecting rods located on the connecting mechanism, and a drill bit is connected to the bottommost ring cutter;

[0007] An external casing is connected below the connecting mechanism and is sleeved on the outer periphery of the ring cutter, and the drill bit forms a working range along the bottom of the external casing and around the external casing;

[0008] A closed grouting box is located below the assembly frame, and after the drill bit completes drilling and sampling along the grouting box, the ring cutter is used for sampling at a plurality of different heights in the drilling sample.

[0009] Further, the connecting mechanism is a connecting cover, at least four groups of connecting rods are arranged on the inner wall of the connecting cover in the circumferential direction, and a drill bit is connected to the bottom of the connecting rod through a connecting rod fixer.

[0010] Further, a drill bit fixer is arranged on the drill rod near the bottommost annular cutter, and the connecting rod and the drill bit at the bottommost annular cutter are fixed on the drill bit fixer to form an inward drilling direction.

[0011] Further, a casing fixing cover is arranged between the connecting cover and the outer casing, and the casing fixing cover is fixed to the connecting cover.

[0012] Further, the annular cutter mechanism comprises a telescopic rod connected to the sliding mechanism through a fixing rod, and a plurality of annular cutter fixers corresponding to the annular cutters are arranged on the telescopic rod.

[0013] Further, the telescopic rod and the annular cutter fixer are arranged perpendicularly, and the annular cutter fixer is arranged on the telescopic rod at the minimum diameter of the bottom.

[0014] Further, the sliding mechanism is a sliding top rod arranged on the top of the assembly frame, and the sliding top rod moves horizontally along the inner wall of the assembly frame to adjust the sampling position in the horizontal direction.

[0015] Further, the assembly frame is assembled through assembly rods, and the sliding top rod is arranged on the inner side of the assembly rod.

[0016] Further, the bottom of the assembly frame is assembled with a fixed box for a pulley for moving the assembly frame.

[0017] The beneficial effects of the present application are as follows:

[0018] The present application utilizes the arrangement of the drill rod annular cutter mechanism and the like to realize sampling of materials in the grouting box at different positions and different depths without damaging the grouting process and the whole sample during sampling. The present application creatively solves the problem of difficult sampling in the grouting model sample. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Fig. 1 is a structural schematic view of a sampling device for grouting model test provided by the present application;

[0020] Figure 2 Fig. 2 is another structural schematic view of a sampling device for grouting model test provided by the present application;

[0021] Figure 3 Fig. 3 is a structural schematic view of an annular cutter mechanism provided by the present application;

[0022] Figure 4 Fig. 4 is a structural schematic view of a connecting rod provided by the present application;

[0023] Figure 5 Fig. 5 is an assembly view of an annular cutter mechanism provided by the present application;

[0024] Figure 6 The utility model provides a structure schematic diagram of external casing;

[0025] Figure 7 The utility model provides a structure schematic diagram of ring cutter connecting hole;

[0026] Figure 8 The utility model provides a structure schematic diagram of sampling drill bit;

[0027] In the drawing,

[0028] 1, sliding mechanism, 2, first fixed link, 3, drill rod, 4, assembly link, 5, grouting box, 6, fixed box, 7, pulley, 8, second fixed link, 9, telescopic link, 10, connecting cover, 11, upper ring cutter, 12, middle ring cutter, 13, middle and lower ring cutter, 14, lower ring cutter, 15, upper ring cutter fixer, 16, middle ring cutter fixer, 17, middle and lower ring cutter fixer, 18, lower ring cutter fixer, 19, connecting link, 20, connecting link fixer, 21, drill bit, 22, drill bit fixer, 23, external casing fixing cover, 24, external casing, 25, ring cutter connecting hole, 27, fixed arm. DETAILED DESCRIPTION

[0029] The utility model will be explained in detail below in conjunction with each embodiment shown in the drawings, but it should be explained that these embodiments are not the limitation of the utility model, and the equivalent transformation or replacement of function, method or structure made by the ordinary skill in the art according to these embodiments all belong to the protection scope of the utility model.

[0030] Referring to the drawings, Figures 1-8 The grouting model test sampling device in the embodiment includes moving mechanism and ring cutter mechanism connected through connecting mechanism, the moving mechanism includes assembly frame, drill rod 3 and the ring cutter mechanism are connected in the assembly frame through sliding mechanism 1 respectively, in order to realize the sampling of multiple positions, the multiple ring cutters are arranged on the ring cutter mechanism in the embodiment, for example, upper ring cutter 11, middle ring cutter 12, middle and lower ring cutter 13 and lower ring cutter 14 in the embodiment, and the ring cutters are connected to each other through connecting link 19 to form a whole, and drill bit 21 is connected to the lower ring cutter 14 at the bottom.

[0031] In order to protect before the sampling of ring cutter, further including external casing 24, drill bit 21 forms the working range along the bottom of external casing 24 and surrounds it.

[0032] In order to sample, the embodiment also includes a closed grouting box 5 located below the assembly frame, after the drill bit completes the drilling sampling along the grouting box 5, the coring samples at several different heights are taken by the cutting ring, at this time the whole sampling is completed, and then the whole drill rod is taken, and then the sampling at different heights is taken on the whole.

[0033] In the embodiment, the connecting mechanism is a connecting cover 10, and at least four groups of the connecting rods 19 are arranged on the inner wall of the connecting cover 10 in a circumferential direction, and the drill bit 21 is connected to the bottom of the connecting rod 19 through the connecting rod fixer. By using this arrangement, the cutting ring is further connected and fixed at multiple positions, and the connection is stronger.

[0034] In the embodiment, in order to increase the drilling effect, the drill bit fixer 22 is arranged at the cutting ring close to the bottom layer through the drill rod, and the connecting rod 9 and the drill bit 21 at the bottom layer cutting ring are fixed at the drill bit fixer 22, forming an inward drilling direction.

[0035] In order to protect the external casing 24 and the connecting cover 10, a casing fixing cover 23 is further arranged between the connecting cover 10 and the external casing 24, and the casing fixing cover 23 is fixedly connected with the connecting cover 10.

[0036] In order to adjust the overall height of the sampling, the cutting ring mechanism comprises a telescopic rod 9 connected with the sliding mechanism through a fixing rod, and a plurality of cutting ring fixers corresponding to the cutting ring are arranged on the telescopic rod 9, and the cutting ring fixers correspond to the number of cutting ring layers.

[0037] In order to facilitate assembly, the telescopic rod 9 and the cutting ring fixer are arranged vertically, and the cutting ring fixer is arranged at the telescopic rod 9 with the smallest diameter at the bottom.

[0038] Specifically, the sliding mechanism is a sliding top rod located at the top of the assembly frame, which moves in the horizontal direction along the inner wall of the assembly frame to adjust the sampling position in the horizontal direction.

[0039] Specifically, the assembly frame is assembled by assembly rods 4, and the sliding top rod is located inside the assembly rod 4. Then the fixed box 6 is assembled at the bottom of the assembly frame to assemble the pulley 7 for moving the assembly frame.

[0040] As shown in Figure 1 、 2 The whole schematic diagram of the grouting model test sampling device is composed of a moving device and a sampling device part. The two parts are mainly connected through the connecting cover 10.

[0041] The mobile device system is mainly composed of a sliding mechanism 1 composed of a sliding top rod, a first fixed rod 2, a drill rod 3, an assembly rod 4, a grouting box 5, a fixed box 6, a pulley 7, a second fixed rod 8, an extension rod 9, and a fixed arm. The main working principle of the mobile device is that the pulley 7 controls the movement of the overall device, the first fixed rod 2 is connected to the sliding top rod, the first fixed rod 2 is connected to the drill rod 3, and the drill rod 3 controls the drilling sampling of the sampling device. At the same time, the second fixed rod 8 is connected to the sliding top rod, the second fixed rod 8 is connected to the extension rod 9, and the extension rod controls the cutter holder on the fixed arm 27 to fix the cutter.

[0042] The sampling device system is mainly composed of a connecting cover 10, an upper cutter 11, a middle cutter 12, a lower cutter 13, a lower cutter 14, an upper cutter holder 15, a middle cutter holder 16, a lower cutter holder 17, a connecting rod 19, a connecting rod holder 20, a drill bit 21, a drill bit holder 22, an external casing fixing cover 23, an external casing 24, a cutter connecting hole 25, and a drill bit 26. The working principle of the sampling device is mainly that the connecting cover 10 is provided on the drill rod 3, and the upper cutter 11, the middle cutter 12, the lower cutter 13, the lower cutter 14, and the drill bit holder 22 are connected below the connecting cover 10. The upper cutter 11, the middle cutter 12, the lower cutter 13, the lower cutter 14, and the drill bit holder 22 are fixed by the connecting rod 19, and are connected by the cutter connecting hole 25 on the cutter. The upper part of the connecting rod 19 is connected to the connecting cover 10, and the lower part is connected to the connecting rod holder 20. The upper and lower parts can be detached, and the upper and lower parts are fixedly connected to make the upper cutter 11, the middle cutter 12, the lower cutter 13, the lower cutter 14, and the drill bit holder 22 tightly connected together. The drill bit holder 22 and the connecting rod holder 20 are both fixed with the drill bit 21. Under the action of the rotating drill rod 3, drilling sampling is performed.

[0043] When the drilling sampling is extracted, the upper cutter holder 15, the middle cutter holder 16, the lower cutter holder 17, and the lower cutter holder 18 are adjusted by the sliding top rod, the second fixed rod 8, and the extension rod 9 to fix the upper cutter 11, the middle cutter 12, the lower cutter 13, and the lower cutter 14, respectively. The connecting cover 10 and the connecting rod holder 20 are loosened, the connecting rod 19 is extracted, and the samples of different cutters are separated through the pores between the cutters. Thus, samples of different depths at the same position are extracted

[0044] The working principle of the outer casing fixing cover 23 and the outer casing 24 is mainly that the outer casing fixing cover 23 is connected to the drill rod 3, and then drilling is carried out, but the outer casing does not need to be taken out, because the size of the outer casing needs to be larger than the sizes of the upper cutter, the middle cutter, the middle-lower cutter, the lower cutter and the drill fixing device, so that the test materials around the samples after sampling can be protected.

[0045] The operation process of the anti-erosion performance simulation under different roughness of the utility model is as follows:

[0046] Firstly, the position of the whole device is adjusted through the pulley 7;

[0047] Further, the outer casing fixing cover 23 is connected to the drill rod 3 through the power center, the position of the outer casing 24 is adjusted, and the outer casing 24 is installed on the outer diameter of the sampling position;

[0048] Further, the upper cutter 11, the middle cutter 12, the middle-lower cutter 13, the lower cutter 14 and the drill fixing device 22 are fixed through the connecting cover 10, the connecting rod 19 and the connecting rod fixing device 20;

[0049] Further, the installed cutters are connected to the drill rod 3 through the connecting cover 10,

[0050] Further, the power system is used to drill and sample along the outer casing 24, and the drilling is completed, and then the drilling is extracted;

[0051] Further, the power system is used to control the upper cutter fixing device 15, the middle cutter fixing device 16, the middle-lower cutter fixing device 17 and the lower cutter fixing device 18 to move to the layered cutters which are lifted out for sampling, and the fixed arms 27 on the telescopic rods 9 are respectively fixed with the upper cutter 11, the middle cutter 12, the middle-lower cutter 13 and the lower cutter 14 through the adjustment of the upper cutter fixing device 15, the middle cutter fixing device 16, the middle-lower cutter fixing device 17 and the lower cutter fixing device 18;

[0052] In use, the connecting rod 19 is extracted by loosening the connecting cover 10 and the connecting rod fixing device 20;

[0053] Further, the samples between the upper cutter 11, the middle cutter 12, the middle-lower cutter 13 and the lower cutter 14 are divided through the divider, so that the sample soil at the same position and different depths is taken out;

[0054] Finally, the above steps are repeated to take out the soil sample at another position.

[0055] The series of detailed descriptions listed above are only specific descriptions for the feasible implementation manners of the present application, and are not used to limit the protection scope of the present application, and equivalent implementation manners or changes made without departing from the spirit of the present application should be included in the protection scope of the present application.

[0056] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0057] In addition, it should be understood that although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments which can be understood by those skilled in the art.

Claims

1. A sampling device for grouting model testing, characterized in that, It includes a moving mechanism and a ring cutter mechanism connected by a connecting mechanism. The moving mechanism includes an assembly frame, in which a drill rod and the ring cutter mechanism are respectively connected by a sliding mechanism. The ring cutter mechanism is provided with several layers of ring cutters, and the several layers of ring cutter mechanisms are connected by connecting rods located on the connecting mechanism, and a drill bit is connected to the bottom ring cutter. The connecting mechanism is connected below an outer casing sleeved around the outer periphery of the ring cutter, and the drill bit forms a working range along the bottom of the outer casing and around the outer casing; The enclosed grouting box is located below the assembly frame. After the drill bit completes drilling and sampling along the grouting box, it takes samples from several different heights in the drilled sample through a ring cutter.

2. The sampling device for grouting model testing according to claim 1, characterized in that, The connecting mechanism is a connecting cover, and at least four sets of connecting rods are arranged circumferentially on the inner wall of the connecting cover. A drill bit is connected to the bottom of the connecting rod through a connecting rod retainer.

3. The sampling device for grouting model testing according to claim 2, characterized in that, A drill bit retainer is installed near the bottom ring cutter via a drill rod. The connecting rod and the drill bit at the bottom ring cutter are fixed to the drill bit retainer, forming an inward drilling direction.

4. The sampling device for grouting model testing according to claim 3, characterized in that, It also includes a protective sleeve fixing cover located between the connecting cover and the outer protective sleeve, the protective sleeve fixing cover being fixedly connected to the connecting cover.

5. The sampling device for grouting model testing according to claim 1, characterized in that, The ring cutter mechanism includes a telescopic rod connected to the sliding mechanism via a fixed rod, and the telescopic rod is provided with a plurality of ring cutter retainers corresponding to the ring cutter.

6. The sampling device for grouting model testing according to claim 5, characterized in that, The telescopic rod is perpendicular to the ring cutter retainer, and the ring cutter retainer is located at the telescopic rod with the smallest diameter at the bottom.

7. The sampling device for grouting model testing according to claim 1, characterized in that, The sliding mechanism is a sliding top rod located at the top of the assembly frame. The sliding top rod moves horizontally along the inner wall of the assembly frame to adjust the sampling position in the horizontal direction.

8. The sampling device for grouting model testing according to claim 7, characterized in that, The assembly frame is assembled using assembly rods, and the sliding top rod is located inside the assembly rods.

9. The sampling device for grouting model testing according to claim 1, characterized in that, The bottom of the assembly rack is fitted with casters for moving the assembly rack via a fixed box.

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