Railway roadbed sampling device

Abstract

The utility model discloses a railroad bed sampling device which comprises a grip, an inserting rod is fixedly mounted at one end of the grip, a rotating rod is rotatably mounted at the other end of the grip, a first sampling piece is fixedly mounted at the lower end of the inserting rod, and a second sampling piece is slidably mounted on the inner side of the first sampling piece. A second sampling piece is installed on the lower end of the rotating rod, a third sampling piece is installed on the inner side of the second sampling piece in a sliding mode, a fourth sampling piece is installed on the inner side of the third sampling piece in a sliding mode, a connecting rod is fixedly installed on the side, close to the fourth sampling piece, of the lower end of the rotating rod, and the connecting rod is fixedly connected with the upper end of the fourth sampling piece. The utility model aims to solve the problem that in the prior art, soil is squeezed during sampling, so that water in the sampled soil seeps out. The soil sampler has the technical effects that the lamellar structure can be inserted into soil more easily, so that the effects of reducing extrusion on the soil in the sampling process and preventing water in the sampled soil from seeping to the periphery are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of railway subgrade sampling, and particularly relates to a railway subgrade sampling device. Background Technique

[0002] Railway subgrade sampling refers to the process of collecting samples from railway subgrade soil to analyze its physical and engineering properties. This process helps to evaluate the stability, bearing capacity and adaptability of the subgrade during design and construction. Samples can be used to test parameters such as soil density, water content, strength, etc. to ensure the quality of railway construction and maintenance.

[0003] Most of the existing railway subgrade sampling devices are equipment such as soil samplers and drilling machines. The sampling pipes of these devices are sealed around, and the soil will be squeezed during the sampling process, resulting in the water in the sampled soil seeping out around. This may cause the water content in the soil sample to decrease, thus affecting its true physical properties, such as density, compaction degree and compressive strength, which may lead to inaccurate data for engineering design and quality control. Content of the Utility Model

[0004] For this reason, the utility model provides a railway subgrade sampling device to solve the above problems in the prior art.

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

[0006] According to the first aspect of the utility model, a railway subgrade sampling device includes a grip. One end of the bottom surface of the grip is fixedly installed with an insertion rod, and the other end of the grip is rotatably installed with a rotating rod. The upper end of the rotating rod penetrates through the grip and is fixedly installed with a rotating handle. The lower end of the insertion rod is fixedly installed with a first sampling piece. The first sampling piece is integrally in a quarter-barrel structure, and the lower end of the first sampling piece is in a quarter-cone barrel structure. A second sampling piece is slidably installed inside the first sampling piece, a third sampling piece is slidably installed inside the second sampling piece, a fourth sampling piece is slidably installed inside the third sampling piece, and a connecting rod is fixedly installed on one side of the lower end of the rotating rod close to the fourth sampling piece. The connecting rod is fixedly connected to the upper end of the fourth sampling piece.

[0007] Further, the second sampling piece, the third sampling piece and the fourth sampling piece have the same structure as the first sampling piece, and the first sampling piece, the second sampling piece, the third sampling piece and the fourth sampling piece can form a complete barrel structure with a pointed lower end.

[0008] Further, a side strip is fixedly installed on one side of the first sampling piece, and the side strip extends to wrap around one side of the second sampling piece and the third sampling piece.

[0009] Furthermore, the inner walls of the first sampling piece, the second sampling piece and the third sampling piece are all provided with a slide groove, and the outer walls of the second sampling piece, the third sampling piece and the fourth sampling piece are fixedly installed with a slide buckle on one side close to the side bar.

[0010] Furthermore, the slider on the outer wall of the second sampling piece is slidably installed in the slide groove on the inner wall of the first sampling piece, the slider on the outer wall of the third sampling piece is slidably installed in the slide groove on the inner wall of the second sampling piece, and the slider on the outer wall of the fourth sampling piece is slidably installed in the slide groove on the inner wall of the third sampling piece.

[0011] Furthermore, a crossbeam is provided in the middle of the insertion rod and the rotating rod, the insertion rod passes through one end of the crossbeam and is fixedly connected to the crossbeam, the rotating rod passes through the other end of the crossbeam and is rotatably connected to the crossbeam, and pedals are fixedly installed on both sides of the middle of the crossbeam.

[0012] The utility model has the following advantages: when sampling, the first sampling piece, the second sampling piece, the third sampling piece and the fourth sampling piece are folded together by rotating the rotating rod, and then the handle is held to push the insertion rod to insert the folded first sampling piece, the second sampling piece, the third sampling piece and the fourth sampling piece into the deep soil of the railway roadbed. The thin sheet structure can be inserted into the soil more easily, so as to reduce the squeezing of the soil during the sampling process and prevent the moisture in the sampled soil from seeping out to the surroundings; then the first sampling piece, the second sampling piece, the third sampling piece and the fourth sampling piece are driven to unfold and form a complete barrel-shaped structure with a pointed cone at the lower end deep in the soil by rotating the rotating rod, and finally the handle is held to drive the insertion rod to lift the first sampling piece, the second sampling piece, the third sampling piece and the fourth sampling piece, so as to complete the sampling and reduce the loss of water in the soil sample, thereby ensuring the true physical properties of the railway roadbed soil sample and making the data of engineering design and quality control more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of a railway roadbed sampling device provided by the utility model.

[0014] Figure 2 The present invention provides a folding schematic diagram of a railway roadbed sampling device.

[0015] Figure 3 The present invention provides a schematic diagram of the expansion of a railway roadbed sampling device.

[0016] Figure 4 This is an exploded view of a sampling piece of a railway roadbed sampling device provided by the utility model.

[0017] In the figure: 11, insertion rod; 12, rotating rod; 13, grip; 14, rotating handle; 15, cross beam; 16, foot pedal; 17, connecting rod; 21, first sampling piece; 22, second sampling piece; 23, third sampling piece; 24, fourth sampling piece; 25, sliding buckle; 26, sliding groove; 27, side strip. Detailed implementation mode

[0018] The following specific embodiments illustrate the implementation mode of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.

[0019] Embodiment 1

[0020] As Figures 1 to 4 shown, a railway subgrade sampling device in the first aspect embodiment of the present utility model includes a grip 13. One end of the bottom surface of the grip 13 is fixedly installed with an insertion rod 11. The other end of the grip 13 is rotatably installed with a rotating rod 12. The upper end of the rotating rod 12 penetrates through the grip 13 and is fixedly installed with a rotating handle 14. The lower end of the insertion rod 11 is fixedly installed with a first sampling piece 21. The first sampling piece 21 is integrally in a quarter-barrel structure. The lower end of the first sampling piece 21 is in a quarter-cone barrel structure. A second sampling piece 22 is slidably installed inside the first sampling piece 21. A third sampling piece 23 is slidably installed inside the second sampling piece 22. A fourth sampling piece 24 is slidably installed inside the third sampling piece 23. One side of the lower end of the rotating rod 12 close to the fourth sampling piece 24 is fixedly installed with a connecting rod 17. The connecting rod 17 is fixedly connected to the upper end of the fourth sampling piece 24;

[0021] In the above embodiment, it should be noted that the surface of the grip 13 is wrapped with a rubber anti-slip layer, and both the insertion rod 11 and the rotating rod 12 are made of alloy material;

[0022] The technical effect achieved by the above embodiment is as follows: when sampling, the first sampling piece 21, the second sampling piece 22, the third sampling piece 23 and the fourth sampling piece 24 are folded together by holding the turning handle 14 and rotating the turning rod 12. Then, the first sampling piece 21, the second sampling piece 22, the third sampling piece 23 and the fourth sampling piece 24 are folded together by holding the handle 13 and pushing the insertion rod 11 to insert the folded first sampling piece 21, the second sampling piece 22, the third sampling piece 23 and the fourth sampling piece 24 deep into the railway roadbed soil. The thin sheet structure can be inserted into the soil more easily, thereby reducing the squeezing of the soil during the sampling process and preventing the moisture in the sampled soil from seeping out to the surroundings. Then, by holding the turning handle 14 and rotating the turning rod 12, the first sampling piece 21, the second sampling piece 22, the third sampling piece 23 and the fourth sampling piece 24 are driven to unfold and form a complete barrel-shaped structure with a pointed cone at the lower end deep in the soil. Finally, the handle 13 is held and the insertion rod 11 is driven to lift the first sampling piece 21, the second sampling piece 22, the third sampling piece 23 and the fourth sampling piece 24 to complete the sampling and reduce the water loss in the soil sample, thereby ensuring the true physical properties of the railway subgrade soil sample and making the data for engineering design and quality control more accurate.

[0023] Example 2

[0024] like Figures 1 to 4 As shown, a railway roadbed sampling device includes all the contents of Example 1. In addition, the second sampling piece 22, the third sampling piece 23, and the fourth sampling piece 24 have the same structure as the first sampling piece 21. The first sampling piece 21, the second sampling piece 22, the third sampling piece 23, and the fourth sampling piece 24 can form a complete barrel-shaped structure with a pointed cone at the lower end. A side strip 27 is fixedly installed on one side of the first sampling piece 21, and the side strip 27 extends and wraps around one side of the second sampling piece 22 and the third sampling piece 23.

[0025] In the above embodiment, it should be noted that the radius of the first sample piece 21 is larger than that of the second sample piece 22 , the radius of the second sample piece 22 is larger than that of the third sample piece 23 , and the radius of the third sample piece 23 is larger than that of the fourth sample piece 24 ;

[0026] Example 3

[0027] like Figures 1 to 4As shown, a railway subgrade sampling device includes all the contents of Embodiment 2. In addition, sliding grooves 26 are provided on the inner walls of the first sampling piece 21, the second sampling piece 22, and the third sampling piece 23. On one side of the outer walls of the second sampling piece 22, the third sampling piece 23, and the fourth sampling piece 24 close to the side strip 27, sliding fasteners 25 are fixedly installed. The sliding fastener 25 on the outer wall of the second sampling piece 22 is slidably installed in the sliding groove 26 on the inner wall of the first sampling piece 21. The sliding fastener 25 on the outer wall of the third sampling piece 23 is slidably installed in the sliding groove 26 on the inner wall of the second sampling piece 22. The sliding fastener 25 on the outer wall of the fourth sampling piece 24 is slidably installed in the sliding groove 26 on the inner wall of the third sampling piece 23;

[0028] In the above embodiment, it should be noted that the diameter of the sliding fastener 25 is equal to the inner diameter of the sliding groove 26.

[0029] The technical effect achieved by the above embodiment is: The sliding fastener 25 and the sliding groove 26 are used to realize the sliding connection between the first sampling piece 21 and the second sampling piece 22, the sliding connection between the second sampling piece 22 and the third sampling piece 23, and the sliding connection between the third sampling piece 23 and the fourth sampling piece 24.

[0030] Embodiment 4

[0031] As Figure 1 shown, a railway subgrade sampling device includes all the contents of Embodiment 3. In addition, a cross beam 15 is provided in the middle of the insertion rod 11 and the rotating rod 12. The insertion rod 11 penetrates through one end of the cross beam 15 and is fixedly connected to the cross beam 15. The rotating rod 12 penetrates through the other end of the cross beam 15 and is rotatably connected to the cross beam 15. On both sides of the middle of the cross beam 15, foot pedals 16 are fixedly installed;

[0032] In the above embodiment, it should be noted that both the cross beam 15 and the foot pedals 16 are made of alloy materials;

[0033] The technical effect achieved by the above embodiment is: When the user holds the handle 13 and pushes the insertion rod 11 to insert the folded first sampling piece 21, second sampling piece 22, third sampling piece 23, and fourth sampling piece 24 deep into the railway subgrade soil, the user can use the foot pedal 16 for leverage.

[0034] Working principle: When sampling, first hold the throttle grip 14 and rotate the rotating rod 12 to drive the first sampling piece 21, the second sampling piece 22, the third sampling piece 23 and the fourth sampling piece 24 to fold together. Then hold the handle 13 and push the inserting rod 11 to insert the folded first sampling piece 21, the second sampling piece 22, the third sampling piece 23 and the fourth sampling piece 24 deep into the railway subgrade soil. Then hold the throttle grip 14 and rotate the rotating rod 12 to drive the first sampling piece 21, the second sampling piece 22, the third sampling piece 23 and the fourth sampling piece 24 to unfold and form a complete barrel-shaped structure with a pointed lower end deep in the soil. Finally, hold the handle 13 and drive the inserting rod 11 to lift the first sampling piece 21, the second sampling piece 22, the third sampling piece 23 and the fourth sampling piece 24 to complete the sampling of the railway subgrade soil.

Claims

1. A railway subgrade sampling device, comprising a grip (13), one end of the bottom surface of the grip (13) is fixedly installed with a plug rod (11), the other end of the grip (13) is rotatably installed with a rotating rod (12), the upper end of the rotating rod (12) penetrates through the grip (13) and is fixedly installed with a rotating handle (14), characterized in that, A first sampling piece (21) is fixedly installed at the lower end of the insertion rod (11). The first sampling piece (21) is integrally in a quarter-barrel structure. The lower end of the first sampling piece (21) is in a quarter-cone-barrel structure. A second sampling piece (22) is slidably installed inside the first sampling piece (21). A third sampling piece (23) is slidably installed inside the second sampling piece (22). A fourth sampling piece (24) is slidably installed inside the third sampling piece (23). One side of the lower end of the rotating rod (12) close to the fourth sampling piece (24) is fixedly installed with a connecting rod (17). The connecting rod (17) is fixedly connected to the upper end of the fourth sampling piece (24).

2. The railway subgrade sampling device according to claim 1, characterized in that, The second sampling piece (22), the third sampling piece (23), and the fourth sampling piece (24) have the same structure as the first sampling piece (21). The first sampling piece (21), the second sampling piece (22), the third sampling piece (23), and the fourth sampling piece (24) can form a complete barrel structure with a pointed lower end.

3. The sampling device for railway subgrade according to claim 1, characterized in that, A side strip (27) is fixedly installed on one side of the first sampling piece (21). The side strip (27) extends and wraps around one side of the second sampling piece (22) and the third sampling piece (23).

4. The railway subgrade sampling device according to claim 3, characterized in that, Chute grooves (26) are provided on the inner walls of the first sampling piece (21), the second sampling piece (22), and the third sampling piece (23). Sliding buckles (25) are fixedly installed on the outer walls of the second sampling piece (22), the third sampling piece (23), and the fourth sampling piece (24) close to the side strip (27).

5. The railway subgrade sampling device according to claim 4, characterized in that, The sliding buckle (25) on the outer wall of the second sampling piece (22) is slidably installed in the chute groove (26) on the inner wall of the first sampling piece (21). The sliding buckle (25) on the outer wall of the third sampling piece (23) is slidably installed in the chute groove (26) on the inner wall of the second sampling piece (22). The sliding buckle (25) on the outer wall of the fourth sampling piece (24) is slidably installed in the chute groove (26) on the inner wall of the third sampling piece (23).

6. The railway subgrade sampling device according to claim 1, characterized in that, A cross beam (15) is provided between the middle parts of the insertion rod (11) and the rotating rod (12). The insertion rod (11) penetrates through one end of the cross beam (15) and is fixedly connected to the cross beam (15). The rotating rod (12) penetrates through the other end of the cross beam (15) and is rotatably connected to the cross beam (15). Foot pedals (16) are fixedly installed on both sides of the middle part of the cross beam (15).

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