A subgrade compaction degree detection device

Abstract

The present invention belongs to the technical field of subgrade compactness detection, and specifically discloses a subgrade compactness detection device, including a base plate. A positioning mechanism is arranged on the top of the base plate, and a drilling mechanism is arranged on the top of the base plate. The drilling mechanism is used to drill into the subgrade. A sample extraction mechanism is arranged inside the drilling mechanism, and the sample extraction mechanism is used to extract the sample inside the drilling mechanism. A sand pouring cylinder is arranged on the top of the base plate, and the positioning mechanism is used to position the drilling mechanism and the sand pouring cylinder. Installation ring plates are fixedly connected to the bottoms of the drilling mechanism and the sand pouring cylinder. The positioning mechanism includes a fixed cylinder. Through the arrangement of the drilling mechanism and the sample extraction mechanism, it is realized that drilling can be quickly carried out on the subgrade and subgrade soil can be extracted, without the need for workers to chisel holes. Therefore, it can save time and effort, and the samples will not be scattered, improving the efficiency of subgrade compactness detection.

Description

Technical Field

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

[0002] The subgrade compaction degree refers to the degree of compaction reached by 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 construction quality of the subgrade and has a crucial impact on the service life and performance of the road. When detecting the subgrade compaction degree, a subgrade compaction degree detection device needs to be used for detection. Common devices include sand pouring cylinders, intelligent compaction degree monitors, core cutters, and portable sounding rods. Among them, the sand pouring cylinder has the advantages of a wide detection range, simple structure, and cost reduction.

[0003] In the prior art, when using a sand pouring cylinder to detect the subgrade compaction degree, since holes need to be chiseled manually, it is time-consuming and laborious, and the chiseled samples are relatively scattered, resulting in difficult collection, thus reducing the efficiency of subgrade compaction degree detection. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a subgrade compaction degree detection device to solve the problems in the prior art that holes need to be chiseled manually, which is time-consuming and laborious, and the chiseled samples are relatively scattered, resulting in difficult collection, thus reducing the efficiency of subgrade compaction degree detection.

[0005] To achieve the above object, the present invention provides a subgrade compaction degree detection device, including 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 subgrade. A sample extraction mechanism is arranged inside the drilling mechanism. The sample extraction mechanism is used to extract the sample inside the drilling mechanism. A sand pouring cylinder is arranged on the top of the base plate. The positioning mechanism is used to position the drilling mechanism and the sand pouring cylinder. Installation ring plates are fixedly connected to the bottoms of the drilling mechanism and the sand pouring cylinder.

[0006] In the above technical solution, preferably, the positioning mechanism includes a fixed cylinder. The outer part of the fixed cylinder is fixedly connected to the inner bottom end of the base plate. Sliding limit blocks are slidably connected to both ends inside the fixed cylinder. Bent rods are fixedly connected to the outer ends of the sliding limit blocks. A limit disk is slidably connected inside the bent rod. One end of the limit disk is fixedly connected to a movable rod. The end of the movable rod away from the bent rod is rotatably connected to a rotating stop arm. The middle part of the rotating stop arm is rotatably connected to a fixed column. The bottom of the fixed column is fixedly connected to the inner bottom of the base plate. Two positioning columns are fixedly connected to the inner bottom of the base plate. A torsion spring is sleeved outside the fixed column.

[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:

[0016] 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.

[0017] 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

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the sand filling tube of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the rotating blocking arm of the present invention;

[0021] Figure 4 It is a structural schematic diagram of a fixed column of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the fixing tube of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the ring plate installed in the present invention;

[0024] Figure 7 It is a structural schematic diagram of the sampling tube of the present invention;

[0025] Figure 8 It is a structural schematic diagram of a bent rod of the present invention;

[0026] Figure 9 It is a structural schematic diagram of the installation column of the present invention;

[0027] Figure 10 It is a structural schematic diagram of the inner rod of the present invention;

[0028] Figure 11 It is a structural schematic diagram of the rotating wheel of the present invention;

[0029] Figure 12 It is a structural schematic diagram of the sliding frame of the present invention;

[0030] Figure 13 It is a schematic structural diagram of the fixing strip of the present invention.

[0031] 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

[0032] 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.

[0033] 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.

[0034] like Figures 1 - 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.

[0035] The positioning mechanism 2 includes a fixed cylinder 201 which provides an installation position. The outer part of the fixed cylinder 201 is fixedly connected to the inner bottom end of the substrate 1. At both ends inside the fixed cylinder 201, there are sliding limit blocks 202 which have the function of limiting. At the outer ends of the sliding limit blocks 202, there are fixedly connected bent rods 203 which have the function of connection. Inside the bent rods 203, there are slidingly connected limit discs 204 which have the function of limiting. At one end of the limit disc 204, there is fixedly connected a movable rod 205 which has the function of connection. At the end of the movable rod 205 away from the bent rod 203, there is a rotatable stop arm 206 rotatably connected. In the middle of the rotatable stop arm 206, there is a fixed column 207 which has the function of positioning. The bottom of the fixed column 207 is fixedly connected to the inner bottom of the substrate 1. There are two positioning columns 209 fixedly connected to the inner bottom of the substrate 1. After the rotatable stop arm 206 touches the positioning column 209, it can block the mounting ring plate 6. An external torsion spring 208 is sleeved on the fixed column 207. One end of the torsion spring 208 is fixedly connected to the inside of the rotatable stop arm 206, and the other end of the torsion spring 208 is fixedly connected to the outside of the fixed column 207. At the top of the fixed column 207, there is a blocking plate 210 which has the function of blocking. The torsion spring 208 is arranged inside the rotatable stop arm 206. When putting the drilling mechanism 3 or the sand filling cylinder 5 into the inside of the substrate 1, first press the bent rod 203 towards the middle, then it can drive the sliding limit block 202 and the movable rod 205 to move towards the middle, and then it can drive the rotatable stop arm 206 to rotate. When the rotatable stop arm 206 rotates, because it makes a circular motion, when the movable rod 205 moves towards the middle, it will move towards the direction of the fixed column 207 driven by the rotatable stop arm 206, and then it can drive the limit disc 204 to move towards the direction of the fixed column 207. At the same time, when the rotatable stop arm 206 rotates, it can compress the torsion spring 208, and because of the rotation of the rotatable stop arm 206, it can move out of the range of the positioning column 209. At this time, the rotatable stop arm 206 will not block the mounting ring plate 6, and then the drilling mechanism 3 or the sand filling cylinder 5 can be pulled out upwards. When installing the drilling mechanism 3 or the sand filling cylinder 5, first press the bent rod 203 towards the middle. At this time, the rotatable stop arm 206 moves out of the range of the positioning column 209, and align the mounting ring plate 6 at the bottom of the drilling mechanism 3 or the sand filling cylinder 5 with the positioning column 209 and insert it. Then release the bent rod 203. Under the reaction force of the torsion spring 208, it can drive the rotatable stop arm 206 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 driven by the rotatable stop arm 206.

[0036] The drilling mechanism 3 includes a mounting frame 301 which provides a mounting position. At the bottom ends of both sides of the mounting frame 301, there are fixedly connected fixing rods 302 which can provide a mounting position. A sliding frame 303 is slidably connected between the outsides of the two fixing rods 302. A sampling cylinder 304 is rotatably connected to the middle of the sliding frame 303. The sliding frame 303 provides stability for the sampling cylinder 304 when drilling. A drilling auger 305 is fixedly connected to the outside of the sampling cylinder 304. A plurality of drill blocks 306 are fixedly connected to the bottom of the sampling cylinder 304. The drill blocks 306 can facilitate drilling the subgrade soil. An installation column 307 is fixedly connected to the top of the sampling cylinder 304. The bottom ends of the two fixing rods 302 are respectively fixedly connected to the two top ends of one of the mounting ring plates 6. The outer bottom end of the sand filling cylinder 5 is fixedly connected to the middle of the other mounting ring plate 6. A handle 308 is fixedly connected to the top of the installation column 307. The handle 308 facilitates rotating the installation column 307. 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 descending height of the sampling cylinder 304. When drilling the subgrade, 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 inside the base plate 1. At this time, rotate the handle 308 and press downwards. When the handle 308 rotates, it can drive the installation column 307 to rotate. After the installation column 307 rotates, it can drive the sampling cylinder 304 to rotate. After the sampling cylinder 304 rotates, it can drive the drilling auger 305 and the drill blocks 306 to rotate. When rotating, due to the pressing force, it will move downwards, and then the sampling cylinder 304 can move into the subgrade. At this time, a part of the soil in the subgrade is discharged from the inside of the subgrade and into the inside of the base plate 1 through the drilling auger 305, and a part enters the inside of the sampling cylinder 304. The descending height can be known through the scale lines 309.

[0037] 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.

[0038] 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.

[0039] Working principle: When the drilling mechanism 3 or the sand filling cylinder 5 is placed inside the base plate 1, first press the bent rod 203 towards the middle, which can then drive the sliding limit block 202 and the movable rod 205 to move towards the middle. Subsequently, it can drive the rotating stop arm 206 to rotate. When the rotating stop arm 206 rotates, since it makes a circular motion, the movable rod 205 will move towards the fixed column 207 under the drive of the rotating stop arm 206 when moving towards the middle. Then it can drive the limit disc 204 to move towards the fixed column 207. At the same time, when the rotating stop arm 206 rotates, it can compress the torsion spring 208, and due to the rotation of the rotating stop arm 206, it can move out of the range of the positioning column 209. At this time, the rotating stop arm 206 will not block the mounting ring plate 6, and the drilling mechanism 3 or the sand filling cylinder 5 can be pulled out upwards. When installing the drilling mechanism 3 or the sand filling cylinder 5, first press the bent rod 203 towards the middle. At this time, the rotating stop arm 206 moves out of the range of the positioning column 209, align the mounting ring plate 6 at the bottom of the drilling mechanism 3 or the sand filling cylinder 5 with the positioning column 209 and insert it. Then release the bent rod 203. Under the reaction force of the torsion spring 208, it can drive the rotating stop arm 206 to reset and engage outside 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;

[0040] When drilling the subgrade, insert the mounting ring plate 6 at the bottom of the fixed 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, rotate the handle 308 and press it downwards. When the handle 308 rotates, it can drive the mounting column 307 to rotate. After the mounting column 307 rotates, it can drive the sampling cylinder 304 to rotate. After the sampling cylinder 304 rotates, it can drive the drilling auger 305 and the drill block 306 to rotate. When rotating, due to the pressing force, it will move downwards. Then it can make the sampling cylinder 304 move into the subgrade. At this time, a part of the soil in the subgrade is discharged from the subgrade interior and enters the interior of the base plate 1 along with the drilling auger 305, and a part enters the interior of the sampling cylinder 304. The descending height can be known through the scale line 309;

[0041] 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.

[0042] The foregoing has shown and described 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 by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, various changes and improvements will occur to the present invention, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended 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); the bottoms of the drilling mechanism (3) and the sand filling cylinder (5) are both fixedly connected to a mounting ring plate (6); 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); 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).

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 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).

4. 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).

5. A roadbed compaction detection device according to claim 1, 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).

6. A roadbed compaction detection device according to claim 1, 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).

7. A roadbed compaction detection device according to claim 1, 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).

8. A roadbed compaction detection device according to claim 1, 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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