Roadbed compactness detection device

Abstract

The invention belongs to the technical field of roadbed compactness detection, and particularly discloses a roadbed compactness detection device which comprises a base plate, a positioning mechanism is arranged at the top of the base plate, a drilling mechanism is arranged at the top of the base plate, the drilling mechanism is used for drilling into a roadbed, a sample taking-out mechanism is arranged in the drilling mechanism, and the sample taking-out mechanism is used for taking out a sample. The drilling mechanism is arranged on the base plate, the sample taking-out mechanism is used for taking out a sample in the drilling mechanism, a sand filling cylinder is arranged at the top of the base plate, the positioning mechanism is used for positioning the drilling mechanism and the sand filling cylinder, mounting ring plates are fixedly connected to the bottoms of the drilling mechanism and the sand filling cylinder, and the positioning mechanism comprises a fixing cylinder. Through the arrangement of the drilling mechanism and the sample taking-out mechanism, the roadbed can be rapidly drilled, roadbed soil can be taken out, a worker does not need to punch holes, therefore, time and labor can be saved, samples cannot be scattered, and the roadbed compactness detection efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of roadbed compaction detection, and specifically discloses a roadbed compaction detection device. Background Art

[0002] Subgrade compaction refers to the degree of compaction of the subgrade soil after compaction, usually expressed as a percentage of the dry density after compaction to the maximum dry density of the soil. It is one of the key indicators for measuring the quality of subgrade construction and has a vital impact on the service life and performance of the road. Subgrade compaction detection equipment is required for testing. Common equipment includes sand-filled barrels, intelligent compaction monitors, ring cutters and portable probes. Sand-filled barrels have the advantages of wide detection range, simple structure and reduced cost.

[0003] In the prior art, when sand-filled barrels are used to detect the compaction of roadbed, it is time-consuming and laborious to manually drill holes, and the samples drilled are relatively scattered, making collection difficult, thereby reducing the efficiency of the roadbed compaction detection. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a roadbed compaction detection device to solve the problem that the prior art requires manual drilling of holes, which is time-consuming and labor-intensive, and the samples drilled are relatively scattered, making collection difficult, thereby reducing the efficiency of roadbed compaction detection.

[0005] To achieve the above objectives, the present invention provides a roadbed compaction detection device, comprising a base plate, a positioning mechanism is arranged on the top of the base plate, a drilling mechanism is arranged on the top of the base plate, the drilling mechanism is used to drill into the roadbed, a sample extraction mechanism is arranged inside the drilling mechanism, the sample extraction mechanism is used to extract samples inside the drilling mechanism, a sand filling cylinder is arranged on the top of the base plate, the positioning mechanism is used to position the drilling mechanism and the sand filling cylinder, and the bottoms of the drilling mechanism and the sand filling cylinder are fixedly connected with mounting ring plates.

[0006] In the above technical scheme, preferably, the positioning mechanism includes a fixed cylinder, the outside of the fixed cylinder is fixedly connected to the inner bottom end of the substrate, both ends of the inside of the fixed cylinder are slidably connected with sliding limit blocks, the outer ends of the sliding limit blocks are fixedly connected with a bent rod, the inside of the bent rod is slidably connected with a limit plate, one end of the limit plate is fixedly connected with a movable rod, the end of the movable rod away from the bent rod is rotatably connected with a rotating stop arm, the middle part of the rotating stop arm is rotatably connected with a fixed column, the bottom of the fixed column is fixedly connected to the inner bottom of the substrate, the inner bottom of the substrate is fixedly connected with two positioning columns, and the outer side of the fixed column is provided with a torsion spring.

[0007] In the above technical solution, preferably, the drilling mechanism includes a mounting frame, the bottoms of both ends of the mounting frame are fixedly connected to fixed rods, a sliding frame is slidably connected between the outsides of the two fixed rods, a sampling barrel is rotatably connected to the middle part of the sliding frame, a drilling auger is fixedly connected to the outside of the sampling barrel, a plurality of drill blocks are fixedly connected to the bottom of the sampling barrel, and a mounting column is fixedly connected to the top of the sampling barrel.

[0008] In the above technical solution, preferably, the sample taking mechanism includes a sliding round block, which is slidably connected to the inside of the mounting column, an inner rod is fixedly connected to the bottom of the sliding round block, a return spring is sleeved on the outside of the inner rod, a push-out plate is fixedly connected to the bottom of the inner rod, a sliding handle is fixedly connected to the outside of the sliding round block, a through groove is provided at the outer wall of the mounting column, a take-out curved rod is fixedly connected to the bottom of the push-out plate, a plurality of tooth grooves are provided on both sides of the outside of the mounting column, a fixing bar is fixedly connected to both sides of the top of the mounting frame, a slide groove is provided on both sides of the inside of the fixing bar, two insertion holes are provided inside the fixing bar, a sliding frame is slidably connected to the outside of the fixing bar, two sliding bars are fixedly connected to the inside of the sliding frame, the sliding bar is slidably connected to the inside of the slide groove, a rotating wheel is rotatably connected to the top of the sliding frame, a plurality of tooth blocks are fixedly connected to the outside of the rotating wheel, a rotating handle is fixedly connected to the outside of the rotating wheel, the tooth block is engaged with the tooth groove, a latch is slidably connected to the bottom end of the sliding frame, and the latch is slidably connected to the inside of the insertion hole.

[0009] In the above technical solution, preferably, one end of the torsion spring is fixedly connected to the inside of the rotating blocking arm, and the other end of the torsion spring is fixedly connected to the outside of the fixing column.

[0010] In the above technical solution, preferably, a blocking plate is fixedly connected to the top of the fixing column, and the torsion spring is arranged inside the rotating blocking arm.

[0011] In the above technical solution, preferably, the bottoms of the two fixing rods are respectively fixedly connected to the two ends of the top of one of the mounting ring plates, and the outer bottom end of the sand filling cylinder is fixedly connected to the middle of the other mounting ring plate.

[0012] In the above technical solution, preferably, a handle is fixedly connected to the top of the mounting column, and a plurality of scale lines are provided on the outside of the fixing rod.

[0013] In the above technical solution, preferably, one end of the return spring is fixedly connected to the bottom of the sliding round block, and the other end of the return spring is fixedly connected to the inner bottom end of the mounting column.

[0014] In the above technical solution, preferably, the sliding handle is slidably connected to the inside of the through groove, and the bottom of the inner rod penetrates the bottom of the mounting column.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can quickly drill holes on the roadbed and take out the roadbed soil through the arrangement of the drilling mechanism and the sample taking-out mechanism, without the need for workers to drill holes, thus saving time and effort, and the samples will not be scattered, thereby improving the efficiency of roadbed compaction detection.

[0016] 2. The present invention can quickly and accurately place the sand filling tube on the substrate and fix it through the positioning mechanism, without the need for manual positioning of the substrate and the sand filling tube by the naked eye. This improves the placement efficiency of the sand filling tube and further improves the detection efficiency. It can also increase the accuracy of placing the sand filling tube on the substrate, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention; Figure 2 It is a structural schematic diagram of the sand filling tube of the present invention; Figure 3 It is a structural schematic diagram of the rotating blocking arm of the present invention; Figure 4 It is a structural schematic diagram of a fixed column of the present invention; Figure 5 It is a structural schematic diagram of the fixing tube of the present invention; Figure 6 This is a schematic diagram of the structure of the ring plate installed in the present invention; Figure 7 It is a structural schematic diagram of the sampling tube of the present invention; Figure 8 It is a structural schematic diagram of a bent rod of the present invention; Fig. 9 It is a structural schematic diagram of the installation column of the present invention; Fig.10 It is a structural schematic diagram of the inner rod of the present invention; Fig.11 It is a structural schematic diagram of the rotating wheel of the present invention; Fig.12 It is a structural schematic diagram of the sliding frame of the present invention; Fig.13 It is a schematic structural diagram of the fixing strip of the present invention.

[0018] In the figure: 1, base plate; 2, positioning mechanism; 201, fixed cylinder; 202, sliding limit block; 203, bending rod; 204, limit plate; 205, movable rod; 206, rotating stop arm; 207, fixed column; 208, torsion spring; 209, positioning column; 210, blocking plate; 3, drilling mechanism; 301, mounting frame; 302, fixed rod; 303, sliding frame; 304, sampling cylinder; 305, drilling auger; 306, drill block; 307, mounting column; 308, handle hand; 309, scale line; 4, sample removal mechanism; 401, sliding round block; 402, inner rod; 403, reset spring; 404, push-out plate; 405, sliding handle; 406, through groove; 407, bring out the curved rod; 408, tooth groove; 409, rotating wheel; 410, tooth block; 411, rotating handle; 412, sliding bar; 413, fixing bar; 414, sliding groove; 415, socket; 416, latch; 417, sliding frame; 5, sand filling cylinder; 6, installation ring plate. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] like Figure 1-Figure 13 A roadbed compaction detection device shown in the figure includes a base plate 1, a positioning mechanism 2 is arranged on the top of the base plate 1, a drilling mechanism 3 is arranged on the top of the base plate 1, the drilling mechanism 3 is used to drill into the roadbed, a sample extraction mechanism 4 is arranged inside the drilling mechanism 3, the sample extraction mechanism 4 is used to extract the sample inside the drilling mechanism 3, a sand filling cylinder 5 is arranged on the top of the base plate 1, the positioning mechanism 2 is used to position the drilling mechanism 3 and the sand filling cylinder 5, and the bottoms of the drilling mechanism 3 and the sand filling cylinder 5 are fixedly connected with a mounting ring plate 6.

[0022] The positioning mechanism 2 includes a fixed cylinder 201, which provides an installation position. The outside of the fixed cylinder 201 is fixedly connected to the inner bottom end of the base plate 1. Both ends of the inside of the fixed cylinder 201 are slidably connected with sliding limit blocks 202, which have a limiting function. The outer ends of the sliding limit blocks 202 are fixedly connected with bent rods 203, and the bent rods 203 have a connecting function. The inside of the bent rod 203 is slidably connected with a limiting disk 204, and the limiting disk 204 has a limiting function. One end of the limiting disk 204 is fixedly connected with a movable rod 205, and the movable rod 205 has a connecting function. The end of the movable rod 205 away from the bent rod 203 is rotatably connected with a rotating stop arm 206. The middle part of the movable blocking arm 206 is rotatably connected with a fixed column 207, and the fixed column 207 has a positioning function. The bottom of the fixed column 207 is fixedly connected to the inner bottom of the substrate 1, and the inner bottom of the substrate 1 is fixedly connected to two positioning columns 209. After the rotating blocking arm 206 contacts the positioning columns 209, it can block the installation ring plate 6. The outer sleeve of the fixed column 207 is provided with a torsion spring 208, one end of the torsion spring 208 is fixedly connected to the inside of the rotating blocking arm 206, and the other end of the torsion spring 208 is fixedly connected to the outside of the fixed column 207. The top of the fixed column 207 is fixedly connected with a blocking plate 210, and the blocking plate 210 has a blocking function. The torsion spring 208 is arranged inside the rotating blocking arm 206 When the drilling mechanism 3 or the sand filling cylinder 5 is placed into the interior of the substrate 1, the bent rod 203 is first pressed toward the middle, which can then drive the sliding limit block 202 and the movable rod 205 to move toward the middle, and then drive the rotating blocking arm 206 to rotate. When the rotating blocking arm 206 rotates, it is in a circular motion. Therefore, when the movable rod 205 moves toward the middle, it will move toward the direction of the fixed column 207 driven by the rotating blocking arm 206, and then it can drive the limit plate 204 to move toward the direction of the fixed column 207. At the same time, when the rotating blocking arm 206 rotates, the torsion spring 208 can be compressed, and due to the rotation of the rotating blocking arm 206, then When the drilling mechanism 3 or the sand filling tube 5 is installed, the bending rod 203 is first pressed toward the middle. At this time, the rotating blocking arm 206 moves out of the range of the positioning column 209, and the mounting ring plate 6 at the bottom of the drilling mechanism 3 or the sand filling tube 5 is aligned with the positioning column 209 and inserted, and then the bending rod 203 is released. Under the reaction force of the torsion spring 208, the rotating blocking arm 206 can be driven to reset and engage on the outside of the positioning column 209. At this time, the bending rod 203 and the sliding limit block 202 will reset under the drive of the rotating blocking arm 206.

[0023] The drilling mechanism 3 includes a mounting frame 301, which provides a mounting position. The bottom of both ends of the mounting frame 301 are fixedly connected to fixed rods 302, and the fixed rods 302 can provide a mounting position. A sliding frame 303 is slidably connected between the outsides of the two fixed rods 302, and a sampling tube 304 is rotatably connected to the middle of the sliding frame 303. The sliding frame 303 provides stability for the sampling tube 304 when drilling a hole. A drilling auger 305 is fixedly connected to the outside of the sampling tube 304, and a plurality of drill blocks 306 are fixedly connected to the bottom of the sampling tube 304. The drill blocks 306 can easily drill the roadbed soil. The top of the sampling tube 304 is fixedly connected to a mounting column 307. The bottoms of the two fixed rods 302 are respectively fixedly connected to the two ends of the top of one of the mounting ring plates 6, and the outer bottom end of the sand filling tube 5 is fixedly connected to the middle of the other mounting ring plate 6. The top of the mounting column 307 is fixedly connected to a handle 308, and the handle 308 is convenient for rotating the mounting column 3 07. A plurality of scale lines 309 are provided on the outside of the fixing rod 302. The scale lines 309 can be used to check the height to which the sampling tube 304 descends. When drilling a hole in the roadbed, the mounting ring plate 6 at the bottom of the fixing rod 302 is inserted into the positioning column 209, and the mounting ring plate 6 is installed on the inner side of the base plate 1 using the positioning mechanism 2. At this time, the handle 308 is turned and pressed downward. When the handle 308 is turned, the mounting column 307 can be driven to rotate. When the mounting column 307 is rotated, the sampling tube 304 can be driven to rotate. When the sampling tube 304 is rotated, the drilling auger 305 and the drill block 306 can be driven to rotate. When rotating, due to the pressing force, the sampling tube 304 moves downward, and then the sampling tube 304 can be moved toward the inside of the roadbed. At this time, part of the soil in the roadbed is discharged from the inside of the roadbed along with the drilling auger 305 and enters the inside of the base plate 1, and part enters the inside of the sampling tube 304. The descending height can be known through the scale lines 309.

[0024] The sample taking mechanism 4 includes a sliding round block 401, which has a limiting function. The sliding round block 401 is slidably connected to the inside of the mounting column 307. The bottom of the sliding round block 401 is fixedly connected to an inner rod 402, and the inner rod 402 has a connecting function. The outer sleeve of the inner rod 402 is provided with a reset spring 403, and the reset spring 403 can drive the sliding round block 401 to reset. The bottom of the inner rod 402 is fixedly connected to a push-out plate 404, and the push-out plate 404 can push the soil inside the sampling tube 304 out. The outside of the sliding round block 401 is fixedly connected to a sliding handle 405, and the sliding handle 405 can easily push the inner rod 402 to move downward. A through groove 406 is provided on the outer wall of the mounting column 307, and the through groove 406 can facilitate the sliding handle 40 5 is slidable, a bent rod 407 is fixedly connected to the bottom of the push-out plate 404, and the bent rod 407 can expand the contact area with the inside of the sampling tube 304, so that the soil inside the sampling tube 304 can be brought out when the mounting column 307 moves upward, and multiple tooth grooves 408 are provided on both sides of the outside of the mounting column 307, and a fixing bar 413 is fixedly connected to both sides of the top of the mounting frame 301, and the fixing bar 413 provides a mounting position, and a slide groove 414 is provided on both sides of the inside of the fixing bar 413, and two plug holes 415 are provided inside the fixing bar 413, and a sliding frame 417 is slidably connected to the outside of the fixing bar 413, and the sliding frame 417 can provide a mounting position, and the sliding bar 412 can slide inside the slide groove 414, so as to limit The moving track of the sliding frame 417, the inner side of the sliding frame 417 is fixedly connected with two sliding bars 412, the sliding bars 412 are slidably connected to the inside of the sliding groove 414, the top of the sliding frame 417 is rotatably connected with a rotating wheel 409, the outside of the rotating wheel 409 is fixedly connected with a plurality of tooth blocks 410, the outside of the rotating wheel 409 is fixedly connected with a rotating handle 411, the tooth block 410 is engaged with the tooth groove 408, the bottom end of the sliding frame 417 is slidably connected with a latch 416, the latch 416 is slidably connected to the inside of the socket 415, one end of the reset spring 403 is fixedly connected to the bottom of the sliding round block 401, the other end of the reset spring 403 is fixedly connected to the inner bottom end of the mounting column 307, the sliding handle 405 is slidably connected to the inside of the through groove 406, the inner The bottom of the rod 402 passes through the bottom of the mounting column 307. When the sampling tube 304 enters the roadbed and reaches the descending height, the sliding handle 405 drives the inner rod 402 and the push-out plate 404 to rotate as the mounting column 307 rotates. When the push-out plate 404 rotates, it can drive the curved rod 407 to rotate and drill into the soil inside the sampling tube 304. When the sampling tube 304 reaches the descending height, the latch 416 is pulled out, and the sliding frame 417 is slid toward the middle, which can then drive the rotating wheel 409 and the rotating handle 411 to slide toward the middle, and slide the middle part of the bottom of the sliding frame 417 to the socket 415 close to the mounting column 307, and then insert the latch 416 into the middle part of the bottom end of the sliding frame 417 and the inside of the socket 415.At this time, the tooth block 410 is engaged with one of the tooth grooves 408, and the rotating handle 411 is rotated downward, thereby driving the rotating wheel 409 to rotate outward, and then the mounting post 307 can be pulled up, achieving the effect of saving effort. When the mounting post 307 moves upward, it will drive the sampling tube 304 to move upward. At the same time, since there is a positioning bolt on the sliding handle 405, when the mounting post 307 moves upward, it can drive the inner rod 402 to move upward, and then drive the anti-plate 404 and the lead-out curved rod 407 to move upward. Since the lead-out curved rod 407 is threaded into the roadbed soil inside the sampling tube 304, and the roadbed soil is relatively compact, the contact surface between the lead-out curved rod 407 and the soil inside the sampling tube 304 is enlarged, so that the soil inside the sampling tube 304 will not fall off easily. The soil is pulled up and broken. After the sliding frame 417 is slid to its original position, the engagement between the tooth groove 408 and the tooth block 410 can be released. At this time, the handle 308 is pulled up to bring out the sampling tube 304 and the roadbed soil inside it. When taking out the internal soil, first screw the positioning bolt on the sliding handle 405 to release the connection between the positioning bolt and the mounting column 307, and then place the drilling mechanism 3 horizontally. At this time, the sliding handle 405 can be pushed in the direction of the drill block 306, and then the inner rod 402 and the push-out plate 404 can be driven to move in the direction of the drill block 306, and then the soil inside the sampling tube 304 can be pushed out of the sampling tube 304, and the soil can be rotated to unscrew the collected soil from the bringing-out curved rod 407 and save it. Then the soil inside the base plate 1 is saved, and the sand filling tube 5 is installed on the base plate 1. At this time, the roadbed compaction degree can be detected by the sand filling method.

[0025] The current status of the road section of the expansion project of the Taicang to Changzhou section of the Huwu Expressway is a two-way four-lane expressway with a roadbed width of 28m and a design speed of 120km / h. The expansion adopts the method of widening on both sides to expand it into a two-way eight-lane expressway with a roadbed width of 42m and a design speed of 120km / h. The main construction content includes roadbed, culverts, passages, bridge widening, and the pavement, traffic safety, and greening of the intersecting roads. The roadbed of this type of road is complex and is not only fine-grained soil. Therefore, the ring knife method detection equipment is not applicable. The cost of using instruments such as intelligent compaction monitors and nuclear density and humidity meters to detect the compaction of the roadbed is relatively high. Therefore, the sand filling method is more suitable for this type of road section. Therefore, the above embodiment innovates the sand filling method detection device.

[0026] Working principle: when the drilling mechanism 3 or the sand filling tube 5 is placed inside the substrate 1, the bent rod 203 is first pressed toward the middle, which can then drive the sliding limit block 202 and the movable rod 205 to move toward the middle, and then drive the rotating blocking arm 206 to rotate. When the rotating blocking arm 206 rotates, it is in a circular motion. Therefore, when the movable rod 205 moves toward the middle, it will move toward the direction of the fixed column 207 driven by the rotating blocking arm 206, and then drive the limit plate 204 to move toward the direction of the fixed column 207. At the same time, when the rotating blocking arm 206 rotates, the torsion spring 208 can be compressed, and due to the rotation of the rotating blocking arm 206, Then it can move out of the range of the positioning column 209. At this time, the rotating stop arm 206 will not block the installation ring plate 6, so the drilling mechanism 3 or the sand filling tube 5 can be pulled out upward. When installing the drilling mechanism 3 or the sand filling tube 5, first press the bent rod 203 to the middle. At this time, the rotating stop arm 206 moves out of the range of the positioning column 209, and align the installation ring plate 6 at the bottom of the drilling mechanism 3 or the sand filling tube 5 with the positioning column 209 and insert it, and then release the bent rod 203. Under the reaction force of the torsion spring 208, the rotating stop arm 206 can be driven to reset and engage with the outside of the positioning column 209. At this time, the bent rod 203 and the sliding limit block 202 will reset under the drive of the rotating stop arm 206; When drilling a hole in the roadbed, insert the mounting ring plate 6 at the bottom of the fixing rod 302 onto the positioning column 209, and use the positioning mechanism 2 to install the mounting ring plate 6 on the inner side of the base plate 1. At this time, turn the handle 308 and press it downward. When the handle 308 is rotated, it can drive the mounting column 307 to rotate. After the mounting column 307 is rotated, it can drive the sampling barrel 304 to rotate. After the sampling barrel 304 is rotated, it can drive the drilling auger 305 and the drill block 306 to rotate. When rotating, due to the pressing force, it will move downward, and then the sampling barrel 304 can move toward the inside of the roadbed. At this time, part of the soil in the roadbed is discharged from the inside of the roadbed along the drilling auger 305 and enters the inside of the base plate 1, and part of it enters the inside of the sampling barrel 304. The height of the descent can be known by the scale line 309. When the sampling tube 304 enters the roadbed and reaches the descending height, as the mounting column 307 rotates, the sliding handle 405 drives the inner rod 402 and the push-out plate 404 to rotate as well. When the push-out plate 404 rotates, it can drive the curved rod 407 to rotate and drill into the soil inside the sampling tube 304. When the sampling tube 304 reaches the descending height, the latch 416 is pulled out, and the sliding frame 417 is slid toward the middle, which can then drive the rotating wheel 409 and the rotating handle 411 to slide toward the middle, and slide the middle of the bottom of the sliding frame 417 to the socket 415 close to the mounting column 307, and then insert the latch 416 into the middle of the bottom end of the sliding frame 417 and the socket 415. The tooth block 410 is engaged with one of the tooth grooves 408, and the rotating handle 411 is rotated downward, so that the rotating wheel 409 can be driven to rotate outward, and then the mounting column 307 can be pulled up, so as to save effort. When the mounting column 307 moves upward, it will drive the sampling tube 304 to move upward. At the same time, since there is a positioning bolt on the sliding handle 405, when the mounting column 307 moves upward, the inner rod 402 can be driven to move upward, and then the anti-plate 404 and the brought-out curved rod 407 can be driven to move upward. Since the brought-out curved rod 407 is screwed into the roadbed soil inside the sampling tube 304, and the roadbed soil is relatively compact, the sampling tube 304 can be pulled up. The contact surface between the bent rod 407 and the soil inside the sampling tube 304 is enlarged, so that the soil inside the sampling tube 304 will not fall off easily. Therefore, under the action of the bent rod 407, the roadbed soil inside the sampling tube 304 can be pulled up and the soil can be broken. After the sliding frame 417 is slid to its original position, the engagement between the tooth groove 408 and the tooth block 410 can be released. The cooperation between the rotating wheel 409 and the mounting column 307 is mainly used to save effort when breaking the soil. If the cooperation between the rotating wheel 409 and the mounting column 307 is always used, the soil is lifted slowly and the operation is complicated. Therefore, at this time, the handle 308 is directly pulled up, and then the sampling tube 304 and its contents can be pulled out. When taking out the inner soil, first screw the positioning bolt on the sliding handle 405 to release the connection between the positioning bolt and the mounting column 307, and then place the drilling mechanism 3 horizontally. At this time, the sliding handle 405 can be pushed toward the mounting frame 301, and then the inner rod 402 and the push-out plate 404 can be driven to move toward the mounting frame 301, and then the soil inside the sampling tube 304 can be pushed out of the sampling tube 304, and the collected soil can be unscrewed from the bringing-out curved rod 407 by directly rotating the soil manually and saved, and then the soil inside the base plate 1 is saved, and the sand filling tube 5 is installed on the base plate 1. At this time, the roadbed compaction degree detection can be carried out by the sand filling method.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A roadbed compaction detection device, comprising a base plate (1), characterized in that: A positioning mechanism (2) is provided on the top of the base plate (1), a drilling mechanism (3) is provided on the top of the base plate (1), the drilling mechanism (3) is used to drill into the roadbed, a sample extraction mechanism (4) is provided inside the drilling mechanism (3), the sample extraction mechanism (4) is used to extract the sample inside the drilling mechanism (3), a sand filling cylinder (5) is provided on the top of the base plate (1), the positioning mechanism (2) is used to position the drilling mechanism (3) and the sand filling cylinder (5), and the bottoms of the drilling mechanism (3) and the sand filling cylinder (5) are fixedly connected to a mounting ring plate (6).

2. A roadbed compaction detection device according to claim 1, characterized in that: The positioning mechanism (2) comprises a fixed cylinder (201), the exterior of the fixed cylinder (201) being fixedly connected to the inner bottom end of the base plate (1), both ends of the interior of the fixed cylinder (201) being slidably connected to sliding limit blocks (202), the outer ends of the sliding limit blocks (202) being fixedly connected to a bent rod (203), the interior of the bent rod (203) being slidably connected to a limit plate (204), one end of the limit plate (204) being fixedly connected to a movable rod (205), one end of the movable rod (205) being rotatably connected to a rotating stop arm (206), the middle part of the rotating stop arm (206) being rotatably connected to a fixed column (207), the bottom of the fixed column (207) being fixedly connected to the inner bottom of the base plate (1), the inner bottom of the base plate (1) being fixedly connected to two positioning columns (209), and the outer portion of the fixed column (207) being sleeved with a torsion spring (208).

3. A roadbed compaction detection device according to claim 1, characterized in that: The drilling mechanism (3) comprises a mounting frame (301), the bottoms of both ends of the mounting frame (301) are fixedly connected to fixed rods (302), a sliding frame (303) is slidably connected between the outsides of the two fixed rods (302), a sampling barrel (304) is rotatably connected to the middle of the sliding frame (303), a drilling auger (305) is fixedly connected to the outside of the sampling barrel (304), a plurality of drill blocks (306) are fixedly connected to the bottom of the sampling barrel (304), and a mounting column (307) is fixedly connected to the top of the sampling barrel (304).

4. A roadbed compaction detection device according to claim 3, characterized in that: The sample removal mechanism (4) comprises a sliding round block (401), wherein the sliding round block (401) is slidably connected to the inside of the mounting column (307), the bottom of the sliding round block (401) is fixedly connected to an inner rod (402), the outer part of the inner rod (402) is sleeved with a return spring (403), the bottom of the inner rod (402) is fixedly connected to a push-out plate (404), the outer part of the sliding round block (401) is fixedly connected to a sliding handle (405), a through groove (406) is provided on the outer wall of the mounting column (307), the bottom of the push-out plate (404) is fixedly connected to a take-out curved rod (407), a plurality of tooth grooves (408) are provided on both sides of the outer part of the mounting column (307), and the top two sides of the mounting frame (301) are fixedly connected to fixing bars (413), and the fixing bars (413) are Slide grooves (414) are provided on both sides of the interior, two insertion holes (415) are provided inside the fixing bar (413), a sliding frame (417) is slidably connected to the outside of the fixing bar (413), two sliding bars (412) are fixedly connected to the inside of the sliding frame (417), the sliding bars (412) are slidably connected to the inside of the slide groove (414), a rotating wheel (409) is rotatably connected to the top of the sliding frame (417), a plurality of tooth blocks (410) are fixedly connected to the outside of the rotating wheel (409), a rotating handle (411) is fixedly connected to the outside of the rotating wheel (409), the tooth blocks (410) are engaged with the tooth grooves (408), a latch (416) is slidably connected to the bottom of the sliding frame (417), and the latch (416) is slidably connected to the inside of the insertion hole (415).

5. A roadbed compaction detection device according to claim 2, characterized in that: One end of the torsion spring (208) is fixedly connected to the inside of the rotating blocking arm (206), and the other end of the torsion spring (208) is fixedly connected to the outside of the fixing column (207).

6. A roadbed compaction detection device according to claim 2, characterized in that: A blocking plate (210) is fixedly connected to the top of the fixed column (207), and the torsion spring (208) is arranged inside the rotating blocking arm (206).

7. A roadbed compaction detection device according to claim 3, characterized in that: The bottoms of the two fixing rods (302) are respectively fixedly connected to the two ends of the top of one of the mounting ring plates (6), and the outer bottom end of the sand filling cylinder (5) is fixedly connected to the middle of the other mounting ring plate (6).

8. A roadbed compaction detection device according to claim 3, characterized in that: A handle (308) is fixedly connected to the top of the mounting column (307), and a plurality of scale lines (309) are provided on the outside of the fixing rod (302).

9. A roadbed compaction detection device according to claim 4, characterized in that: One end of the return spring (403) is fixedly connected to the bottom of the sliding round block (401), and the other end of the return spring (403) is fixedly connected to the inner bottom end of the mounting column (307).

10. A roadbed compaction detection device according to claim 4, characterized in that: The sliding handle (405) is slidably connected to the inside of the through slot (406), and the bottom of the inner rod (402) penetrates the bottom of the mounting column (307).

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