A device for detecting the compactness of rockfill concrete

Abstract

The present invention discloses a device for detecting the compactness of rockfill concrete, which relates to the technical field of rockfill concrete detection. It includes a housing and a detection component. A lifting component is connected to the top of the housing, and the detection component is arranged inside the housing. The detection component includes a second motor, a second bevel gear set, a reciprocating lead screw, a driving block, a sliding seat, a guiding frame, a return spring, an ultrasonic transducer, and an ultrasonic sensor. A second motor is fixed inside the housing, and the end of the second motor is connected to a second bevel gear set. When detecting the compactness of rockfill concrete, two detection devices need to be respectively placed in two detection holes pre-opened in the rockfill concrete. At this time, the first motor drives the screw sleeve to rotate through the first bevel gear set, and the smooth rod restricts the self-rotation of the first screw rod. Therefore, the first screw rod can move up and down to adjust the height during detection.

Description

Technical Field

[0001] The present invention relates to the technical field of rock - filled concrete detection, and particularly to a device for detecting the compactness of rock - filled concrete. Background Technique

[0002] The construction technology of rock - filled concrete refers to directly stacking large - sized rubble into the bin, and then pouring special self - compacting concrete without any vibration from the surface of the rock - filled body. By utilizing the characteristics of high fluidity and high penetrability of the special self - compacting concrete, the voids of the rock - filled body are completely filled by its own weight, forming a large - volume concrete that is complete, dense, has low hydration heat, and meets the strength requirements.

[0003] Currently, when detecting the compactness of rock - filled concrete, the core - drilling method is usually used, that is, a core - drilling machine is used to drill core samples in the rock - filled concrete and then detect the samples. However, in the actual detection process, the detection results of the samples only reflect a small part of the rock - filled concrete, and the overall coverage range of the samples is small, resulting in a relatively general overall detection effect.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a device for detecting the compactness of rock - filled concrete is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for detecting the compactness of rock - filled concrete to solve the problems raised in the above - mentioned background technique.

[0006] To achieve the above - mentioned purpose, the present invention provides the following technical solution: A device for detecting the compactness of rock - filled concrete includes a housing and a detection component. A lifting component is connected to the top of the housing, and the detection component is arranged inside the housing. The detection component includes a second motor, a second bevel gear set, a reciprocating lead screw, a driving block, a sliding seat, a guiding frame, a return spring, an ultrasonic transducer, and an ultrasonic sensor. A second motor is fixed inside the housing, and a second bevel gear set is connected to the end of the second motor. A reciprocating lead screw is arranged inside the second bevel gear set, and a driving block is sleeved outside the reciprocating lead screw. The bottom of the driving block is slidably connected to a sliding seat, and the middle of the sliding seat is slidably connected to a guiding frame. A return spring is sleeved outside one end of the guiding frame. The number of guiding frames is two, and an ultrasonic transducer is fixed to one side of the lower part of one of the guiding frames, and an ultrasonic sensor is arranged on one side of the lower part of the other guiding frame.

[0007] Furthermore, the lifting component includes a smooth rod, a bracket, and a first motor. A smooth rod is arranged on the top of the housing, and a bracket is slidably connected to the outer side of the upper end of the smooth rod. One end of the top of the bracket is fixed with a first motor.

[0008] Further, the lifting assembly further includes a first bevel gear set, a screw sleeve, and a first screw rod. One end of the first motor is provided with the first bevel gear set, and a screw sleeve is fixed inside one end of the first bevel gear set. The screw sleeve is rotatably connected to the bracket, and the first screw rod is threadedly connected inside the screw sleeve and is rotatably connected to the housing.

[0009] Further, one end of the top of the guide frame is connected to a mounting plate, and the mounting plate is rotatably connected to the reciprocating lead screw. The bottom surface of the mounting plate and the bottom surface of the housing are both provided with mounting holes at equal intervals along the circumference.

[0010] Further, a coupling assembly is provided inside the housing. The coupling assembly includes a glue storage tank, a first one-way valve, and a fixed cylinder. The glue storage tank is fixed inside the housing, and a first one-way valve is arranged at the lower end of one side of the glue storage tank. One end of the first one-way valve is connected to the fixed cylinder, and the fixed cylinder is fixedly connected to the housing.

[0011] Further, the coupling assembly further includes a piston rod, a support rod, a second one-way valve, and a shunt pipe. The piston rod is slidably connected inside the fixed cylinder, and a support rod is fixed to the top of the piston rod. The support rod is fixedly connected to the driving block and is slidably connected to the housing. The second one-way valve is arranged at the front end of the lower part of the fixed cylinder, and the front end of the second one-way valve is connected to the shunt pipe.

[0012] Further, the coupling assembly further includes a glue outlet sleeve, an overflow hole, a guide rod, and a buffer spring. The bottom of the shunt pipe is connected to the glue outlet sleeve through a pipe, and an overflow hole is opened at the top of the glue outlet sleeve. A guide rod is arranged on one side of the glue outlet sleeve and is slidably connected to the sliding seat, and a buffer spring is arranged on one side of the sliding seat.

[0013] Further, a stabilizing assembly is provided at the upper end inside the housing. The stabilizing assembly includes a first end gear ring, a second end gear ring, and a compression spring. The top of the reciprocating lead screw is fixed with the first end gear ring, and the second end gear ring is slidably connected to the top of the first end gear ring, and a compression spring is arranged on the top of the second end gear ring.

[0014] Further, the stabilizing assembly further includes a guide post, a second screw rod, and an adjusting sleeve. The guide post is slidably connected inside the second end gear ring and is rotatably connected to the reciprocating lead screw. The top of the guide post is fixed with the second screw rod, and the second screw rod is rotatably connected to the housing. The adjusting sleeve is threadedly connected to the outer side of the upper end of the second screw rod.

[0015] Further, the stabilizing assembly further includes a connecting rod, a sliding rod, and a pulley. The outer side of the adjusting sleeve is rotatably connected to the connecting rod, and the end of the connecting rod is rotatably connected to the sliding rod. The sliding rod is slidably connected to the housing, and a pulley is rotatably connected inside one end of the sliding rod.

[0016] The present invention provides a device for detecting the compactness of rockfill concrete, which has the following beneficial effects:

[0017] 1. When detecting the compactness of rockfill concrete, two detection devices need to be respectively placed in two detection holes pre-opened in the rockfill concrete. At this time, the first motor drives the screw sleeve to rotate through the first bevel gear set, and the smooth rod restricts the self-rotation of the first screw rod. Therefore, the first screw rod can move up and down to adjust the height during detection, and the scale bar outside the smooth rod facilitates observing the height of the housing, so that the detection positions of the two detection devices are the same. After that, just start the second motor, and it can drive the reciprocating screw rod to rotate through the second bevel gear set, making the driving block move downward, thereby squeezing the sliding seat to move horizontally under the guidance of the guide frame. The ultrasonic transducer and the ultrasonic sensor will be in contact with the inner wall of the detection hole, so that the ultrasonic transducers and the ultrasonic sensors in the two detection holes correspond to each other. Since ultrasonic waves propagate faster in materials with higher compactness, the propagation speed of ultrasonic waves can be used to judge the compactness of rockfill concrete. At the same time, different heights of rockfill concrete can be detected during detection, further expanding the detection range. Moreover, the guide frame is fixed to the bottom of the housing and the mounting plate through bolts and mounting holes, so the orientation of the ultrasonic transducer and the ultrasonic sensor can also be adjusted according to needs, or the ultrasonic transducer and the ultrasonic sensor can be added or reduced to detect between multiple detection holes using multiple detection devices at the same time, further improving the usage range of the detection device.

[0018] 2. The present invention can use the support rod to limit the rotation direction of the driving block. Therefore, when the reciprocating screw rod rotates, the height of the driving block can be controlled. And when the driving block moves downward, it will also drive the piston rod to move downward, and the coupling agent in the fixed cylinder can be transported to the flow channel of the glue outlet sleeve through the second one-way valve and the shunt pipe and flow out from the inner through hole, so as to spray the ends of the ultrasonic transducer and the ultrasonic sensor. And when the sliding seat drives the glue outlet sleeve to move through the buffer spring and is in contact with the inner wall of the detection hole, the buffer spring will be compressed, and at the same time, the ultrasonic transducer and the ultrasonic transducer will slide inside the glue outlet sleeve, so as to squeeze the internal coupling agent, and the excess coupling agent will be discharged from the overflow hole. Therefore, during the detection process, the coupling agent can be automatically used to fill the gap between the ultrasonic transducer, the ultrasonic sensor and the inner wall of the detection hole, which is beneficial to improving the detection accuracy. And when the driving block moves upward as the reciprocating screw rod continues to rotate, the piston rod will also move upward synchronously inside the fixed cylinder. At this time, the coupling agent in the glue storage tank will be replenished into the fixed cylinder through the first one-way valve and can be reused. And multiple interfaces are provided at the lower end of the shunt pipe to meet different usage requirements.

[0019] 3. When the present invention places the housing in the detection hole and starts the second motor to rotate the reciprocating lead screw, the compression spring will push the second end gear ring at this time, making it close to the first end gear ring. Therefore, when rotating, the second screw can be driven to rotate through the guide post, causing the adjusting sleeve to move upward. The connecting rod will then push the sliding rod, making the pulley fit against the inner wall of the detection hole, which is beneficial to keeping the housing stable. Thus, during the detection process, the situation of shaking and deviation at the lower part of the device can be avoided. And when the pulley fits against the inner wall of the detection hole, the second end gear ring will encounter a large resistance in the rotation direction. At this time, when the first end gear ring rotates, an upward component force can be provided through its inclined surface to squeeze the compression spring, so that sliding occurs between the second end gear ring and the first end gear ring, preventing the situation of movement interference with the detection component. Therefore, before the detection component detects, the housing will be automatically stabilized, further improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an overall three-dimensional structural schematic diagram of a device for detecting the compactness of rockfill concrete according to the present invention;

[0021] Figure 2 is an internal structural schematic diagram of the housing of a device for detecting the compactness of rockfill concrete according to the present invention;

[0022] Figure 3 is a three-dimensional structural schematic diagram of the detection component of a device for detecting the compactness of rockfill concrete according to the present invention;

[0023] Figure 4 is a bottom view structural schematic diagram of the housing of a device for detecting the compactness of rockfill concrete according to the present invention;

[0024] Figure 5 is a three-dimensional structural schematic diagram of the coupling component of a device for detecting the compactness of rockfill concrete according to the present invention;

[0025] Figure 6 is a partial sectional structural schematic diagram of the stability component of a device for detecting the compactness of rockfill concrete according to the present invention;

[0026] Figure 7 is a three-dimensional structural schematic diagram of the second end gear disc of a device for detecting the compactness of rockfill concrete according to the present invention.

[0027] In the figure: 1. Housing; 2. Lifting assembly; 201. Smooth rod; 202. Bracket; 203. First motor; 204. First bevel gear set; 205. Nut sleeve; 206. First screw rod; 3. Detection assembly; 301. Second motor; 302. Second bevel gear set; 303. Reciprocating lead screw; 304. Driving block; 305. Slide block; 306. Guide frame; 307. Return spring; 308. Ultrasonic transducer; 309. Ultrasonic sensor; 4. Mounting plate; 5. Mounting hole; 6. Coupling assembly; 601. Glue storage tank; 602. First one-way valve; 603. Fixed cylinder; 604. Piston rod; 605. Support rod; 606. Second one-way valve; 607. Diverging pipe; 608. Glue outlet sleeve; 609. Overflow hole; 610. Guide rod; 611. Buffer spring; 7. Stabilizing assembly; 701. First end gear ring; 702. Second end gear ring; 703. Compression spring; 704. Guide post; 705. Second screw rod; 706. Adjusting sleeve; 707. Connecting rod; 708. Slide rod; 709. Pulley. Detailed implementation mode

[0028] Please refer to Figures 1 to 7 As shown in the figure, the present invention provides a technical solution: a detection device for the compactness of rockfill concrete, including a housing 1 and a detection assembly 3. A lifting assembly 2 is connected to the top of the housing 1. The detection assembly 3 is arranged inside the housing 1. The detection assembly 3 includes a second motor 301, a second bevel gear set 302, a reciprocating lead screw 303, a driving block 304, a slide block 305, a guide frame 306, a return spring 307, an ultrasonic transducer 308 and an ultrasonic sensor 309. A second motor 301 is fixed inside the housing 1, and a second bevel gear set 302 is connected to the end of the second motor 301. A reciprocating lead screw 303 is arranged inside the second bevel gear set 302, and a driving block 304 is sleeved outside the reciprocating lead screw 303. The bottom of the driving block 304 is slidably connected to a slide block 305, and the middle of the slide block 305 is slidably connected to a guide frame 306. A return spring 307 is sleeved outside one end of the guide frame 306. The number of the guide frames 306 is two. An ultrasonic transducer 308 is fixed on one side of the lower part of one of the guide frames 306, and an ultrasonic sensor 309 is arranged on one side of the lower part of the other guide frame 306.

[0029] Please refer to Figures 1 to 5, the lifting assembly 2 includes a polished rod 201, a bracket 202 and a first motor 203. The polished rod 201 is arranged at the top of the housing 1, and the bracket 202 is slidably connected to the outer side of the upper end of the polished rod 201. One end of the top of the bracket 202 is fixed with the first motor 203. The lifting assembly 2 further includes a first bevel gear set 204, a screw sleeve 205 and a first screw rod 206. One end of the first motor 203 is provided with the first bevel gear set 204, and the screw sleeve 205 is fixed inside one end of the first bevel gear set 204. The screw sleeve 205 is rotatably connected to the bracket 202, and the first screw rod 206 is threadedly connected inside the screw sleeve 205. The first screw rod 206 is rotatably connected to the housing 1. One end of the top of the guide frame 306 is connected to a mounting plate 4, and the mounting plate 4 is rotatably connected to the reciprocating lead screw 303. The bottom surface of the mounting plate 4 and the bottom surface of the housing 1 are both provided with mounting holes 5 at equal intervals along the circumference. A coupling assembly 6 is arranged inside the housing 1. The coupling assembly 6 includes a glue storage tank 601, a first one-way valve 602 and a fixed cylinder 603. The glue storage tank 601 is fixed inside the housing 1, and the first one-way valve 602 is arranged at the lower end of one side of the glue storage tank 601. One end of the first one-way valve 602 is connected to the fixed cylinder 603, and the fixed cylinder 603 is fixed to the housing 1. The coupling assembly 6 further includes a piston rod 604, a support rod 605, a second one-way valve 606 and a shunt pipe 607. The piston rod 604 is slidably connected inside the fixed cylinder 603, and the support rod 605 is fixed to the top of the piston rod 604. The support rod 605 is fixed to the driving block 304 and is slidably connected to the housing 1. The second one-way valve 606 is arranged at the front end of the lower part of the fixed cylinder 603, and the shunt pipe 607 is connected to the front end of the second one-way valve 606. The coupling assembly 6 further includes a glue outlet sleeve 608, an overflow hole 609, a guide rod 610 and a buffer spring 611. The bottom of the shunt pipe 607 is connected to the glue outlet sleeve 608 through a pipeline, and the overflow hole 609 is opened at the top of the glue outlet sleeve 608. The guide rod 610 is arranged at one side of the glue outlet sleeve 608 and is slidably connected to the sliding seat 305. A buffer spring 611 is arranged on one side of the sliding seat 305;

[0030] The specific operations are as follows. First, fix the guide frame 306 to the bottoms of the housing 1 and the mounting plate 4 through bolts and the mounting holes 5. During this process, the orientations of the ultrasonic transducer 308 and the ultrasonic sensor 309 can also be adjusted according to requirements, or the ultrasonic transducer 308 and the ultrasonic sensor 309 can be added or reduced so as to use multiple detection devices to detect between multiple detection holes simultaneously. Then, place the housings 1 of the multiple detection devices into different detection holes respectively. At this time, the first motor 203 drives the screw sleeve 205 to rotate through the first bevel gear set 204, and the smooth rod 201 restricts the self-rotation of the first screw rod 206. Therefore, the first screw rod 206 can move up and down, so as to adjust the height during detection, and it is convenient to observe the height of the housing 1 through the scale bar on the outer side of the smooth rod 201, making the detection positions of each detection device consistent. Then, start the second motor 301, and it can drive the reciprocating lead screw 303 to rotate through the second bevel gear set 302. At this time, use the support rod 605 to limit the rotation direction of the driving block 304. Therefore, when the reciprocating lead screw 303 rotates, the height of the driving block 304 can be controlled. And when the driving block 304 moves down, it will also drive the piston rod 604 to move down, and the coupling agent in the fixed cylinder 603 can be transported to the flow channel of the glue outlet sleeve 608 through the second one-way valve 606 and the shunt pipe 607 and flow out from the inner through hole, so as to spray the ends of the ultrasonic transducer 308 and the ultrasonic sensor 309. At the same time, the driving block 304 squeezes the sliding seat 305 to make it move horizontally under the guidance of the guide frame 306. The sliding seat 305 drives the glue outlet sleeve 608 to move through the buffer spring 611. After fitting with the inner wall of the detection hole, the buffer spring 611 will be compressed. At the same time, the ultrasonic transducer 308 and the ultrasonic transducer 308 will slide inside the glue outlet sleeve 608, so as to squeeze the internal coupling agent, and the excess coupling agent will be discharged from the overflow hole 609. Therefore, during the detection process, the coupling agent can be automatically used to fill the gap between the ultrasonic transducer 308, the ultrasonic sensor 309 and the inner wall of the detection hole, which is beneficial to improving the detection accuracy. And because the ultrasonic transducers 308 and the ultrasonic sensors 309 in the two detection holes correspond to each other, and ultrasonic waves propagate faster in materials with higher density, the density of the rockfill concrete can be judged by using the propagation speed of ultrasonic waves. At the same time, the rockfill concrete at different heights can also be detected during the detection, further expanding the detection range. When the detection is completed, control the reciprocating lead screw 303 to continue to rotate again, so that the driving block 304 moves up, and the piston rod 604 will also move up synchronously inside the fixed cylinder 603. At this time, the coupling agent in the glue storage tank 601 will be replenished into the fixed cylinder 603 through the first one-way valve 602 and can be reused. And the return spring 307 will push the sliding seat 305 to reset it. Then, change the height of the housing 1 through the lifting assembly 2, and repeat the above detection steps, and the multiple heights of the detection hole can be detected, further expanding the detection range during the rockfill concrete density detection.

[0031] Please refer to Figure 3 、 Figures 6 to 7 As shown in Figure 3 and Figures 6 to 7 , a stabilizing component 7 is provided at the upper end inside the housing 1. The stabilizing component 7 includes a first end gear ring 701, a second end gear ring 702 and a compression spring 703. The top of the reciprocating lead screw 303 is fixed with the first end gear ring 701, and the top of the first end gear ring 701 is slidably connected with the second end gear ring 702, and a compression spring 703 is provided at the top of the second end gear ring 702. The stabilizing component 7 further includes a guide post 704, a second screw 705 and an adjusting sleeve 706. The guide post 704 is slidably connected inside the second end gear ring 702, and the guide post 704 is rotatably connected with the reciprocating lead screw 303. The top of the guide post 704 is fixed with the second screw 705, and the second screw 705 is rotatably connected with the housing 1, and the adjusting sleeve 706 is threadedly connected to the outer side of the upper end of the second screw 705. The stabilizing component 7 further includes a connecting rod 707, a sliding rod 708 and a pulley 709. The outer side of the adjusting sleeve 706 is rotatably connected with the connecting rod 707, and the end of the connecting rod 707 is rotatably connected with the sliding rod 708. The sliding rod 708 is slidably connected with the housing 1, and a pulley 709 is rotatably connected inside one end of the sliding rod 708;

[0032] The specific operation is as follows. When the second motor 301 is started, the reciprocating lead screw 303 can be driven to rotate through the second bevel gear set 302. At this time, the compression spring 703 will push the second end gear ring 702 to make it close to the first end gear ring 701. Therefore, the second screw 705 can be driven to rotate through the guide post 704 during rotation, so that the adjusting sleeve 706 moves upward, and the connecting rod 707 will push the sliding rod 708, making the pulley 709 fit against the inner wall of the detection hole, which is beneficial to keeping the housing 1 stable. Thus, during the detection process, the situation that the lower part of the device shakes and deviates can be avoided. And when the pulley 709 fits against the inner wall of the detection hole, the second end gear ring 702 will receive a large resistance in the rotation direction. At this time, when the first end gear ring 701 rotates, an upward component force can be provided through its inclined surface to squeeze the compression spring 703, so that sliding occurs between the second end gear ring 702 and the first end gear ring 701, preventing the situation of movement interference with the detection component 3.

[0033] In summary, for the density detection device of roller compacted concrete, during use, first, several detection holes are drilled in the roller compacted concrete by a drilling device. Secondly, the guide frame 306 is fixed to the bottoms of the housing 1 and the mounting plate 4 through bolts and the mounting holes 5, and the orientations of the ultrasonic transducers 308 and the ultrasonic sensors 309 can also be adjusted according to requirements, or the ultrasonic transducers 308 and the ultrasonic sensors 309 can be added or reduced, so as to use multiple detection devices to detect between multiple detection holes simultaneously. Then, the housings 1 of the multiple detection devices are respectively placed in different detection holes. At this time, the first motor 203 drives the screw sleeve 205 to rotate through the first bevel gear set 204, and the smooth rod 201 restricts the self-rotation of the first screw rod 206. Therefore, the first screw rod 206 can move up and down, so as to adjust the height during detection, and the height of the housing 1 can be conveniently observed through the scale bar on the outer side of the smooth rod 201. Subsequently, when the second motor 301 is started, the reciprocating lead screw 303 can be driven to rotate through the second bevel gear set 302. At this time, the compression spring 703 will push the second end gear ring 702 to make it close to the first end gear ring 701. Therefore, when rotating, the second screw rod 705 can be driven to rotate through the guide post 704, so that the adjusting sleeve 706 moves up, and the connecting rod 707 will push the sliding rod 708, so that the pulley 709 fits with the inner wall of the detection hole, which is beneficial to keeping the housing 1 stable. Moreover, when the pulley 709 fits with the inner wall of the detection hole, the second end gear ring 702 will be subject to a large resistance in the rotation direction. At this time, when the first end gear ring 701 rotates, an upward component force can be provided through its inclined surface to squeeze the compression spring 703, so that sliding occurs between the second end gear ring 702 and the first end gear ring 701, preventing the situation of movement interference with the detection assembly 3. Then, the support rod 605 is used to limit the rotation direction of the driving block 304. Therefore, when the reciprocating lead screw 303 rotates, the height of the driving block 304 can be controlled. And when the driving block 304 moves down, the piston rod 604 will also move down, and the coupling agent in the fixed cylinder 603 can be conveyed to the flow channel of the glue outlet sleeve 608 through the second one-way valve 606 and the shunt pipe 607 and flow out from the inner through hole, so as to spray the ends of the ultrasonic transducers 308 and the ultrasonic sensors 309. During this process, the driving block 304 will squeeze the sliding seat 305 to make it move horizontally under the guidance of the guide frame 306. The sliding seat 305 will drive the glue outlet sleeve 608 to move through the buffer spring 611. After fitting with the inner wall of the detection hole, the buffer spring 611 will be compressed. At the same time, the ultrasonic transducers 308 and the ultrasonic transducers 308 will slide inside the glue outlet sleeve 608, so as to squeeze the internal coupling agent, and the excess coupling agent will be discharged from the overflow hole 609. After that, since the ultrasonic transducers 308 and the ultrasonic sensors 309 in the two detection holes correspond to each other, the density of the roller compacted concrete can be judged by using the propagation speed of ultrasonic waves. Finally,When the reciprocating lead screw 303 is further controlled to rotate so that the driving block 304 moves upward, the piston rod 604 will also move upward synchronously inside the fixed cylinder 603. At this time, the coupling agent inside the glue storage tank 601 will be replenished into the fixed cylinder 603 through the first one-way valve 602, and it can be reused. Moreover, the return spring 307 will push the sliding seat 305 to reset it. Then, the height of the housing 1 is changed through the lifting assembly 2, and the above detection steps are repeated, so that the heights at multiple positions in the detection hole can be detected.

[0034] The embodiments of the present invention are given for purposes of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention so as to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A detection device for the compactness of rockfill concrete, characterized in that, It includes a housing (1) and a detection component (3). A lifting component (2) is connected to the top of the housing (1). The detection component (3) is arranged inside the housing (1). The detection component (3) includes a second motor (301), a second bevel gear set (302), a reciprocating lead screw (303), a driving block (304), a sliding seat (305), a guide frame (306), a return spring (307), an ultrasonic transducer (308) and an ultrasonic sensor (309). The second motor (301) is fixed inside the housing (1), and the end of the second motor (301) is connected to the second bevel gear set (302). The reciprocating lead screw (303) is arranged inside the second bevel gear set (302), and the driving block (304) is sleeved on the outer side of the reciprocating lead screw (303). The bottom of the driving block (304) is slidably connected to the sliding seat (305), and the middle of the sliding seat (305) is slidably connected to the guide frame (306). A return spring (307) is sleeved on the outer side of one end of the guide frame (306). The number of the guide frames (306) is two. An ultrasonic transducer (308) is fixed on one side of the lower part of one of the guide frames (306), and an ultrasonic sensor (309) is arranged on one side of the lower part of the other guide frame (306). The lifting component (2) includes a smooth rod (201), a bracket (202) and a first motor (203). The smooth rod (201) is arranged on the top of the housing (1), and the upper end of the smooth rod (201) is slidably connected to the bracket (202). One end of the top of the bracket (202) is fixed with the first motor (203). The lifting component (2) further includes a first bevel gear set (204), a screw sleeve (205) and a first screw rod (206). The first bevel gear set (204) is arranged at one end of the first motor (203), and the screw sleeve (205) is fixed inside one end of the first bevel gear set (204). The screw sleeve (205) is rotatably connected to the bracket (202), and the first screw rod (206) is threadedly connected inside the screw sleeve (205) and is rotatably connected to the housing (1). One end of the top of the guide frame (306) is connected to a mounting plate (4), and the mounting plate (4) is rotatably connected to the reciprocating lead screw (303). Mounting holes (5) are equidistantly arranged along the circumference on the bottom surface of the mounting plate (4) and the bottom surface of the housing (1).

2. The compactness detection device for rolled concrete according to claim 1, characterized in that, A coupling component (6) is arranged inside the housing (1). The coupling component (6) includes a glue storage tank (601), a first one-way valve (602) and a fixed cylinder (603). The glue storage tank (601) is fixed inside the housing (1), and the first one-way valve (602) is arranged at the lower end of one side of the glue storage tank (601). One end of the first one-way valve (602) is connected to the fixed cylinder (603), and the fixed cylinder (603) is fixed to the housing (1).

3. The compactness detection device for roller compacted concrete according to claim 2, characterized in that, The coupling component (6) further includes a piston rod (604), a support rod (605), a second one-way valve (606) and a shunt pipe (607). A piston rod (604) is slidably connected inside the fixed cylinder (603), and a support rod (605) is fixed to the top of the piston rod (604). The support rod (605) is fixedly connected to the driving block (304) and is slidably connected to the housing (1). A second one-way valve (606) is arranged at the front end of the lower part of the fixed cylinder (603), and a shunt pipe (607) is connected to the front end of the second one-way valve (606).

4. A device for detecting the compactness of rockfill concrete according to claim 3, characterized in that, The coupling component (6) further includes a glue outlet sleeve (608), an overflow hole (609), a guide rod (610) and a buffer spring (611). The bottom of the shunt pipe (607) is connected to the glue outlet sleeve (608) through a pipe, and an overflow hole (609) is formed in the top of the glue outlet sleeve (608). A guide rod (610) is arranged on one side of the glue outlet sleeve (608) and is slidably connected to the sliding seat (305), and a buffer spring (611) is arranged on one side of the sliding seat (305).

5. The compactness detection device for rockfill concrete according to claim 1, wherein, A stabilizing component (7) is arranged at the upper end inside the housing (1). The stabilizing component (7) includes a first end gear ring (701), a second end gear ring (702) and a compression spring (703). A first end gear ring (701) is fixed to the top of the reciprocating lead screw (303), and a second end gear ring (702) is slidably connected to the top of the first end gear ring (701), and a compression spring (703) is arranged on the top of the second end gear ring (702).

6. The compactness detection device for roller compacted concrete according to claim 5, wherein, The stabilizing component (7) further includes a guide post (704), a second screw rod (705) and an adjusting sleeve (706). A guide post (704) is slidably connected inside the second end gear ring (702), and the guide post (704) is rotatably connected to the reciprocating lead screw (303). A second screw rod (705) is fixed to the top of the guide post (704), and the second screw rod (705) is rotatably connected to the housing (1), and an adjusting sleeve (706) is threadedly connected to the outer side of the upper end of the second screw rod (705).

7. A device for detecting the compactness of rockfill concrete according to claim 6, characterized in that The stabilizing component (7) further includes a connecting rod (707), a sliding rod (708) and a pulley (709). A connecting rod (707) is rotatably connected to the outer side of the adjusting sleeve (706), and the end of the connecting rod (707) is rotatably connected to a sliding rod (708). The sliding rod (708) is slidably connected to the housing (1), and a pulley (709) is rotatably connected inside one end of the sliding rod (708).

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