Rapid soil sampling device for roadbed compactness detection

Abstract

The utility model relates to a roadbed compaction degree detection rapid soil sampling device, which comprises a main machine body, a rotating head, a driving assembly and a soil sampling main body, the driving assembly is located in the main machine body, the rotating head is connected to the output end of the main machine body, the driving assembly is used for driving the rotating head to rotate, and the soil sampling main body comprises a connecting rod and an annular tool post. During operation, the main machine body is held, the driving assembly is opened, the rotating head and the soil sampling main body are driven to rotate, the soil sampling main body drills into the ground to be measured, then the driving assembly is closed, and the soil sampling main body is pulled out. According to the arrangement, the soil sampling device is simple and light in structure and convenient to transfer, the compaction degree detection efficiency is effectively improved, manual operation can be reduced, the accuracy is improved, and the field standardization level is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of soil quality measurement equipment, and in particular relates to a quick soil taking device for detecting the compaction degree of a roadbed. Background Art

[0002] In recent years, roadbed compaction is the final link in the construction of highway projects, and the quality of compaction directly determines the quality of highway project construction. At present, foreign roadbed filling technology generally adopts the pit digging and sand filling method, which is one of the most commonly used test methods for testing compaction. This method is suitable for on-site determination of the density and compaction of various material compaction layers of the base (or subbase), gravel pavement and roadbed soil. However, the methods of roadbed filling compaction quality testing at home and abroad are different. In my country, sampling points are generally used to test whether the filling layer is qualified. This construction method has the following problems: 1. The detection operation is cumbersome and time-consuming; 2. It consumes labor; In view of this, this plan was created. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a rapid soil taking device for detecting the compaction degree of a roadbed, which can quickly take soil for detection.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a roadbed compaction detection and rapid soil taking device, comprising a main body, a rotating head, a driving assembly and a soil taking body, the driving assembly is located in the main body, the rotating head is connected to the output end of the main body, the driving assembly is used to drive the rotating head to rotate, the soil taking body comprises a connecting rod and an annular knife column, one end of the annular knife column has a groove, the connecting rod is connected to the other end face of the annular knife column, the connecting rod extends into the rotating head and is detachably connected to the rotating head.

[0005] Furthermore, a soil-carrying assembly is provided on the annular knife column, and the soil-carrying assembly is used to cover the soil entering the groove.

[0006] Further, the annular knife column includes an insertion portion and an operating portion, the groove is located in the insertion portion, the insertion portion has a first installation groove, the circumference of the first installation groove has a ratchet groove, a first clearance groove, a wheel groove and a second clearance groove from top to bottom, the ratchet groove and the first clearance groove are adjacent to each other and communicate with each other, and the wheel groove and the second clearance groove are adjacent to each other and communicate with each other;

[0007] The soil-carrying assembly comprises two arc-shaped pieces, a rotating body and a pressing body, wherein the two arc-shaped pieces are rotatably connected to the side wall of the groove along their own axis direction through a first rotating shaft, and a first return torsion spring is provided at the connection between the first rotating shaft and the side wall of the groove;

[0008] The rotating body comprises a rotating disk and a rotating column, wherein the rotating column is connected below the rotating disk, and a first receiving hole is formed on the rotating body, which passes through the rotating body from top to bottom, and a first clamping groove and a third paving groove are formed on the circumference of the middle section of the first receiving hole, and the first clamping groove and the third paving groove are adjacent to each other and communicate with each other from top to bottom;

[0009] The circumferential surface of the pressing body has a first clamping platform, a second clamping platform and a wire wheel from top to bottom, the first clamping platform is located in the first clamping groove and adapted to each other, the horizontal cross-section of the first clamping platform is square, the horizontal cross-section of the second clamping platform is circular, a one-way pawl is formed on the circumferential surface of the second clamping platform, the one-way pawl is adapted to the ratchet groove, the wire wheel is located in the wheel groove and adapted to each other, a first return compression spring is arranged between the bottom of the pressing body and the bottom of the first mounting groove; a pulling wire is arranged between the arc-shaped sheet and the wire wheel.

[0010] Furthermore, the bottom of the groove is matched with the bottom of the arc-shaped piece, a limited sliding block is formed on the back of the arc-shaped piece, a sliding groove is formed on the inner side wall of the groove, and the limited sliding block and the sliding groove are matched.

[0011] Furthermore, the end of the arc-shaped piece has a chamfer.

[0012] Furthermore, the groove opening has a chamfer.

[0013] Furthermore, the host body has a first holding portion and a second holding portion on the lower side.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The rapid soil taking device provided in the utility model only needs to hold the main body, open the driving component, drive the rotating head and the soil taking body to rotate, the soil taking body drills into the ground to be measured, and then close the driving component, pull out the soil taking body, pull out the soil taking body with the soil to be measured, and then measure the soil to be measured. With this arrangement, the structure is simple and light, and it is convenient to transport, which effectively improves the compaction detection efficiency, can reduce manual operation, improve accuracy, and improve the level of on-site standardization. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a quick soil-taking device for detecting compaction degree of roadbed according to the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the soil taking body in Embodiment 2 of the present utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the structure of the earth-taking body in Example 2 of the utility model when the arc-shaped piece is opened.

[0019] Figure 4It is a cross-sectional structural diagram of the arc-shaped piece in the soil-taking body in the embodiment 2 of the utility model in the pencil case state;

[0020] Figure 5 For this utility model Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the arc-shaped piece in the utility model.

[0022] Markings in the figure: 1. Main body; 2. Rotating head; 3. Soil-taking body; 31. Connecting rod; 32. Annular knife column; 321. Insertion part; 3211. Groove; 3212. Slide groove; 322. Operating part; 3221. First clearance groove; 3222. Second clearance groove; 4223. Ratchet groove; 4. Soil-pocketing assembly; 41. Arc-shaped piece; 411. Limiting sliding block; 42. Rotating body; 421. Rotating disk; 422. Rotating column; 4221. Third clearance groove; 43. Pressing body; 431. First clamping platform; 432. Second clamping platform; 433. Wire wheel; 44. First return compression spring; 45. Pulling line. DETAILED DESCRIPTION

[0023] In order to make the above features and advantages of the present invention more obvious and understandable, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0024] Example 1

[0025] like Figure 1 As shown, this embodiment provides a rapid soil-taking device for detecting the compaction degree of a roadbed, comprising a main body 1, a rotating head 2, a driving assembly and a soil-taking body 3.

[0026] The host body 1 has a first holding portion and a second holding portion on the lower side, the driving assembly is located inside the host body 1, the rotating head 2 is connected to the output end of the host body 1, the driving assembly is used to drive the rotating head 2 to rotate, the driving assembly is a driving motor, an assembly hole is provided in the middle of the rotating head 2, and a clamping mechanism is provided at the assembly hole. The host body 1, the rotating head 2 and the driving assembly in this scheme are similar to the impact drill structure in the prior art.

[0027] The soil-extracting body 3 includes a connecting rod 31 and an annular knife column 32. One end of the annular knife column 32 has a groove 3211. The opening of the groove 3211 is formed with a chamfer, which is a sharp annular chamfer. The connecting rod 31 is connected to the other end face of the annular knife column 32. The connecting rod 31 extends into the rotating head 2 and is detachably connected to the rotating head 2.

[0028] When collecting samples, install the connecting rod 31 on the rotating head 2, then hold the first holding part and the second holding part, align the annular knife column 32 with the ground and insert it. While inserting, control the drive assembly to start, so that the annular knife column 32 rotates and extends into the ground, retaining the soil to be tested in the groove 3211 of the annular knife column 32, and then pull it out to complete the collection.

[0029] Example 2

[0030] When the soil in the area to be tested is relatively loose, the structure of embodiment 1 is used for collection. When the annular knife column 32 is pulled out, the soil to be tested will fall off. Therefore, embodiment 2 provides a soil collecting device with a soil bag component 4, such as Figure 1-Figure 6 As shown, the difference between this embodiment and embodiment 1 is that a soil bag assembly 4 is provided on the annular knife column 32, and the soil bag assembly 4 is used to cover the soil entering the groove 3211.

[0031] The annular knife column 32 includes an insertion portion 321 and an operating portion 322, the groove 3211 is located at the insertion portion 321, the insertion portion 321 has a first installation groove, the circumference of the first installation groove has a ratchet groove 4223, a first clearance groove 3221, a wheel groove and a second clearance groove 3222 from top to bottom, the ratchet groove 4223 and the first clearance groove 3221 are adjacent to each other and communicate with each other, and the wheel groove and the second clearance groove 3222 are adjacent to each other and communicate with each other;

[0032] The soil-carrying assembly 4 includes two arc-shaped pieces 41, a rotating body 42 and a pressing body 43. The two arc-shaped pieces 41 are rotatably connected to the side wall of the groove 3211 along their own axis direction through a first rotating shaft. A first return torsion spring is provided at the connection between the first rotating shaft and the side wall of the groove 3211. The end of the arc-shaped piece 41 has a chamfer. Specifically, the bottom of the groove 3211 is matched with the bottom of the arc-shaped piece 41, a limited sliding block 411 is formed on the back of the arc-shaped piece 41, a sliding groove 3212 is formed on the inner side wall of the groove 3211, and the limited sliding block 411 is matched with the sliding groove 3212.

[0033] The rotating body 42 includes a rotating disk 421 and a rotating column 422, and the rotating column 422 is connected below the rotating disk 421. A first accommodating hole is formed on the rotating body 42, and the first accommodating hole has a first clamping groove and a third yielding groove 4221 on the circumference of the middle section. The first clamping groove and the third yielding groove 4221 are adjacent to each other and communicate with each other.

[0034] The circumference of the pressing body 43 has a first clamping platform 431, a second clamping platform 432 and a wire wheel 433 from top to bottom. The first clamping platform 431 is located in the first clamping slot and is adapted to it. The horizontal cross-section of the first clamping platform 431 is square. Only when the non-circular first clamping platform 431 cooperates with the first clamping slot, the rotating disk 421 can drive the pressing body 43 to rotate. The horizontal cross-section of the second clamping platform 432 is circular. A one-way pawl is formed on the circumference of the second clamping platform 432. The one-way pawl is adapted to the ratchet groove 4223. The wire wheel 433 is located in the wheel groove and is adapted to it. A first return compression spring 44 is provided between the bottom of the pressing body 43 and the bottom of the first mounting groove; a pulling line 45 is provided between the arc-shaped sheet 41 and the wire wheel 433.

[0035] Working principle: When collecting samples, install the connecting rod 31 on the rotating head 2, then hold the first holding part and the second holding part, align the annular knife column 32 with the ground and insert it. While inserting, control the driving component to start, so that the annular knife column 32 rotates and extends into the ground. At this time, the two arc-shaped pieces 41 are in an open state. At this time, press the pressing body 43 on the operating part 322 to disengage the one-way pawl and the ratchet groove 4223, and the one-way pawl extends into the first make way groove 3221. The wire wheel 433 moves to the second make way groove 3222, and the first card table 43 1 moves to the third giving way groove 4221, and then under the action of the first reset torsion spring, the two arc-shaped pieces 41 move closer to each other to achieve closure, and cover the soil to be tested. Then, the design will not generate pressure on the soil to be tested while covering it, resulting in the density of the soil to be tested being different from the actual density. When the sample needs to be poured out, under the action of the first reset compression spring 44, the pressing body 43 is reset, and the first clamping platform 431 of the pressing body 43 cooperates with the first clamping groove. At this time, the rotating disk 421 is rotated to make the wire wheel 433 wind the pulling wire 45, so that the two arc-shaped pieces 41 are separated.

[0036] The above shows and describes the basic principles and main features of the invention and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the invention, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A rapid soil-taking device for detecting roadbed compaction, characterized in that: It includes a main body, a rotating head, a driving assembly and a soil extracting body, wherein the driving assembly is located in the main body, the rotating head is connected to the output end of the main body, the driving assembly is used to drive the rotating head to rotate, and the soil extracting body includes a connecting rod and an annular knife column, one end of the annular knife column has a groove, the connecting rod is connected to the other end surface of the annular knife column, and the connecting rod extends into the rotating head and is detachably connected to the rotating head.

2. A rapid soil-taking device for detecting roadbed compaction according to claim 1, characterized in that: The annular knife column is provided with a soil bag assembly, and the soil bag assembly is used to cover the soil entering the groove.

3. A rapid soil-taking device for detecting roadbed compaction according to claim 2, characterized in that: The annular knife column comprises an insertion portion and an operating portion, the groove is located at the insertion portion, the insertion portion has a first installation groove, the circumference of the first installation groove has a ratchet groove, a first clearance groove, a wheel groove and a second clearance groove from top to bottom, the ratchet groove and the first clearance groove are adjacent to each other and communicate with each other, and the wheel groove and the second clearance groove are adjacent to each other and communicate with each other; The soil-carrying assembly comprises two arc-shaped pieces, a rotating body and a pressing body, wherein the two arc-shaped pieces are rotatably connected to the side wall of the groove along their own axis direction through a first rotating shaft, and a first return torsion spring is provided at the connection between the first rotating shaft and the side wall of the groove; The rotating body comprises a rotating disk and a rotating column, wherein the rotating column is connected below the rotating disk, and a first receiving hole is formed on the rotating body, which passes through the rotating body from top to bottom, and a first clamping groove and a third paving groove are formed on the circumference of the middle section of the first receiving hole, and the first clamping groove and the third paving groove are adjacent to each other and communicate with each other from top to bottom; The circumferential surface of the pressing body has a first clamping platform, a second clamping platform and a wire wheel from top to bottom, the first clamping platform is located in the first clamping groove and adapted to each other, the horizontal cross-section of the first clamping platform is square, the horizontal cross-section of the second clamping platform is circular, a one-way pawl is formed on the circumferential surface of the second clamping platform, the one-way pawl is adapted to the ratchet groove, the wire wheel is located in the wheel groove and adapted to each other, a first return compression spring is arranged between the bottom of the pressing body and the bottom of the first mounting groove; a pulling wire is arranged between the arc-shaped sheet and the wire wheel.

4. A rapid soil-taking device for detecting roadbed compaction according to claim 3, characterized in that: The bottom of the groove is matched with the bottom of the arc-shaped piece, a limited sliding block is formed on the back of the arc-shaped piece, a sliding groove is formed on the inner side wall of the groove, and the limited sliding block is matched with the sliding groove.

5. A rapid soil-taking device for detecting roadbed compaction according to claim 3, characterized in that: The end of the arc-shaped piece has a chamfer.

6. A rapid soil-taking device for detecting roadbed compaction according to claim 3, characterized in that: The groove has a chamfer at its opening.

7. A rapid soil-taking device for detecting roadbed compaction according to claim 1, characterized in that: The host body has a first gripping portion and a second gripping portion on the lower side.

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