A road construction quality detection sampling device

Abstract

The invention discloses a road construction quality detection sampling device, which belongs to the technical field of road construction detection. Its structure includes a base, a drive control platform, a guide platform and an arc-shaped sampling tube; the upper and lower ends of the arc-shaped sampling tube are respectively provided with a control arm and a probe end; the end of the control arm is detachably fixed with a plurality of extension arms, and adjacent extension arms are plugged and connected to each other through the docking ends at their own ends, and the extension arms can penetrate the guide platform and be plugged and slidably connected to the arc-shaped tube on the top of the drive control platform; the soil layer samples collected by the above-mentioned equipment are in an arc-shaped structure, and the permeability and shear strength of the soil layer in the horizontal direction can be fully understood, so as to fully grasp the road surface conditions, analyze the corresponding treatment plans, effectively reduce the uneven settlement of the road surface and the cracking of the road surface that may occur in the future, and lay a solid foundation for ensuring the overall quality of the project and extending the service life of the project.

Description

Technical Field

[0001] The invention relates to the technical field of road construction detection, in particular to a road construction quality detection sampling device. Background Art

[0002] Pavement sampling and testing can provide detailed information about pavement structure and material properties, including key indicators such as pavement thickness, density, compaction, deflection value, etc. These data are crucial for evaluating the pavement's bearing capacity, flatness, and skid resistance, and help to promptly detect pavement diseases and potential safety hazards;

[0003] The existing application number is CN202110227894.8, which discloses a road surface drilling sampling device. The patent document discloses a method of sampling ground soil samples using a drill bit and an air suction component. Specifically: the staff holds the handle, places the device in a specified position, aims the drill bit at the road surface to be sampled, and then turns on the toggle switch. The motor is powered on and starts working. At this time, the drill bit drills into the road surface driven by the drill rod, and the fan blade also starts to rotate under the drive of the driven shaft, and a negative pressure area is formed at the lower end of the sampling tube. Therefore, when the spiral blades on the drill bit drive the road dust and particles crushed by the drill bit to rise to the height of the connecting pipe 2, the dust and particles will rush into the sampling tube with the air flow, and the air flow driven by the fan blade will be blown out from the air vents above it, and the dust and particles entering the lower end of the sampling tube will fall into the sampling box under the action of gravity, completing the sampling work;

[0004] However, when using the technical solution in the above patent document, the soil sample is in a powder state, the sample core cannot be completely taken out, and it is impossible to fully understand the soil layer structure, the thickness of each layer, the vertical change of soil texture, and the distribution law of various substances in the soil in different soil layers, and the use effect is poor;

[0005] There is also a road construction sampling core device with application number CN202310813384.8. The patent document discloses a method for using a cylindrical drill bit to completely sample ground soil samples. Specifically: when sampling starts, the water pump is started to inject water into the sampling barrel. At the same time, the sampling barrel rotates and moves downward, and extends into the ground through the sampling knife. The rotation of the sampling barrel will close the suction mechanism in the sampling barrel to limit the entry of mud and water. When the sampling barrel moves downward relative to the sleeve, negative pressure will be generated inside the suction mechanism. After the rotation of the sampling barrel stops, the sampling barrel stops rotating to open the suction mechanism. The negative pressure inside the suction mechanism is used to draw a mixture of water and soil into the gap defined between the inner wall of the sampling barrel and the sample core, thereby increasing the friction between the inner wall of the sampling barrel and the sampling core, so that the sample core can be synchronously brought out when the sampling barrel moves upward to prevent the sample core from remaining underground.

[0006] However, when using the technical solution in the above-mentioned patent document, the sampling tube is extended vertically and moved vertically, and can sample the vertically extended soil layer, and it is necessary to prevent the sample core retained in the sampling tube from falling off, resulting in a limited diameter of the sampling tube. The collected sample cores are relatively limited for the horizontal soil layer structure, and the collected sample cores cannot reflect the soil layer structure well in the horizontal direction, resulting in misjudgment of the horizontal permeability, shear strength, etc. of the soil layer. Therefore, the present application provides a pavement construction quality inspection sampling equipment. Summary of the invention

[0007] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a road construction quality detection sampling equipment. The soil samples collected by the equipment can fully understand the horizontal permeability, shear strength and other conditions of the soil layer, so as to fully grasp the road conditions, analyze the corresponding treatment plans, and effectively reduce the uneven settlement of the road surface and road cracking that may occur in the future, thereby laying a solid foundation for ensuring the overall quality of the project and extending the service life of the project.

[0008] The technical solution adopted by the present invention to solve the technical problem is:

[0009] Provided is a road construction quality inspection sampling device, comprising a base, a drive control platform, a guide platform and an arc-shaped sampling tube; the base is erected on the upper side of the construction road surface, the drive control platform is fixedly mounted on the base, the guide platform is fixedly mounted on the side of the drive control platform, the arc-shaped sampling tube is slidably connected to the guide platform, and the upper and lower ends of the arc-shaped sampling tube are respectively provided with a control arm and a probe end; a plurality of extension arms are detachably and fixedly mounted at the end of the control arm, and adjacent extension arms are plugged and connected to each other through the butt joint ends at their ends, and the extension arms can penetrate the guide platform and be plugged and slidably connected to the arc-shaped tube on the top of the drive control platform.

[0010] Furthermore, a plurality of alloy drilling bars are slidably mounted between the outer wall and the inner wall of the arc-shaped sampling barrel. The alloy drilling bars can be extended from the probe end. One end of the alloy drilling bar close to the control arm is connected to the synchronous traction disc through a wire rope. A linear electric cylinder II for driving the synchronous traction disc to move is installed in the control arm. A partition for sealing the active area of ​​the synchronous traction disc is provided in the arc-shaped sampling barrel. A soil sample retention area is formed between the end surface of the partition close to the probe end and the inner side surface of the arc-shaped sampling barrel.

[0011] Furthermore, a transmission groove is provided on the outer side of the extension arm, and a plurality of gear shafts are rotatably mounted on the control console, and gears are integrally formed on the gear shafts. The sides of the gears penetrate the arc tube and are connected to the transmission groove through meshing transmission.

[0012] Furthermore, an articulated seat is detachably fixedly mounted on the movable end of the linear electric cylinder II, the articulated seat is connected to the synchronous traction disc via a connecting rod, and the two ends of the connecting rod are respectively engaged and rotatably connected with the articulated seat and the synchronous traction disc.

[0013] Furthermore, a track is fixedly installed on the base, a U-shaped frame is slidably installed on the track, a rotating shaft is rotatably installed on the U-shaped frame, a plurality of clamping arms I are fixedly installed on the side of the rotating shaft, and a clamping arm II is slidably installed on the clamping arm I; the extended arm is clamped between the clamping arm I and the clamping arm II, and a plurality of embedded blocks that can be plugged into the transmission groove on the outer side of the extended arm are fixedly installed on the inner side of the clamping arm II.

[0014] Furthermore, the clamp arm I is connected to the rotating shaft via a polygonal sleeve, and the polygonal sleeve is detachably fixedly connected to the polygonal column on the rotating shaft.

[0015] Furthermore, the arc-shaped sampling tube is composed of a plurality of combined shells, and adjacent combined shells are detachably and fixedly connected together via a splicing piece.

[0016] Furthermore, a plurality of tightening heads are slidably mounted on the outer side of the guide platform, and the plurality of tightening heads can respectively abut against the side surface of the extension arm where no transmission groove is provided.

[0017] Furthermore, a plurality of rotating wheels are rotatably mounted on the bottom of the base, and overhead legs are rotatably mounted on both ends of the base.

[0018] Furthermore, a linear electric cylinder I is fixedly installed on the lower side of the drive control platform, and a synchronous drive control arm is fixedly installed on the movable end of the linear electric cylinder I. The two ends of the synchronous drive control arm are respectively slidably connected with the groove arms on the sides of the two overhead legs.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The pavement construction quality inspection sampling equipment of the example of the present invention controls the alloy drilling bar to continuously extend and retract from the end of the probe end, pokes and inserts the underground soil layer, and divides this part of the soil layer; because the curvature of multiple alloy drilling bars is consistent with the curvature size of the arc-shaped sampling tube, the movement of the alloy drilling bars is smooth and stable, and under the joint action of the multiple alloy drilling bars, a poking and inserting path consistent with the cross-sectional profile of the arc-shaped sampling tube is reserved underground; at the same time, the arc-shaped sampling tube is controlled to rotate, and this part of the soil layer is collected into the arc-shaped sampling tube to complete the sampling and collection operation of the soil layer sample; because the alloy drilling bar only pokes and inserts the edge of the soil layer sample, it will not cause damage to the overall soil layer sample, so that the soil layer structure, the thickness of each layer, the vertical change of soil texture, and the distribution law of various substances in the soil in different soil layers can be fully understood.

[0021] 2. The pavement construction quality inspection sampling equipment of the example of the present invention, since the soil layer sample is in an arc-shaped structure, it includes both the vertical soil layer structure and the horizontal soil layer structure, and can fully understand the horizontal permeability, shear strength and other conditions of the soil layer, so as to fully grasp the pavement conditions, analyze the corresponding treatment plans, and effectively reduce the uneven pavement settlement and pavement cracking that may occur in the future, laying a solid foundation for ensuring the overall quality of the project and extending the service life of the project.

[0022] 3. In the pavement construction quality inspection sampling equipment of the example of the present invention, the disassembly and installation direction of two adjacent extension arms is horizontal, and the length of the extension arm is greater than the spacing between the arc tube and the guide platform, multiple tightening heads tighten and limit multiple side surfaces of the extension arm, and the inner side surface of the arc tube abuts and fits with the outer side surface of the extension arm, so that horizontal movement will not occur between the multiple extension arms, effectively maintaining the state of splicing the multiple extension arms to each other, and ensuring that the equipment collects soil samples smoothly and stably.

[0023] 4. The pavement construction quality inspection sampling equipment of the example of the present invention controls multiple clamp arms I and II to move horizontally along the extension direction of the axis of the rotating shaft and rotate with the axis of the rotating shaft as the axis, and controls clamp arms I and II to release the clamping state of the extension arm, and successively connects the extension arms clamped by multiple clamp arms I and II to each other and install them on the end of the control arm, and implements automatic positioning and connection and docking operations, so that the operator can control the entire process with the help of remote control technology. The automation efficiency is high, the convenience is good, and the danger caused by direct contact of the operator can be avoided, thereby improving the overall safety factor of the equipment and ensuring the safety and reliability of the entire soil layer sample collection operation.

[0024] 5. The pavement construction quality inspection sampling equipment of the example of the present invention controls the movement of the synchronous drive control arm, and utilizes the interlocking sliding between the end of the synchronous drive control arm and the slot arm to drive the two overhead legs to rotate synchronously to open or close, so that the rotating wheel is separated from the ground, and the base is lifted and erected above the construction road surface, which effectively improves the placement stability of the equipment, avoids shaking, deviation, etc. of the equipment due to unstable placement during the construction process, and ensures the accuracy of the soil sample collection operation and the operational safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0026] Figure 1 A schematic diagram of the structure of the road construction quality detection sampling equipment provided by the embodiment of the present invention Figure 1 ;

[0027] Figure 2 For the present invention Figure 1 The enlarged view of point A in the middle;

[0028] Figure 3 For the present invention Figure 1 The enlarged view of point B in the middle;

[0029] Figure 4 A schematic diagram of the structure of the road construction quality detection sampling equipment provided by the embodiment of the present invention Figure 2 ;

[0030] Figure 5 A schematic diagram of the overall structure of a road construction quality detection sampling device provided by an embodiment of the present invention;

[0031] Figure 6 A schematic diagram of the structure of the track, U-shaped frame and movable arm provided in an embodiment of the present invention;

[0032] Figure 7 For the present invention Figure 6 Enlarged view of point C in the middle;

[0033] Figure 8 A schematic diagram of the structure of a control arm, an extension arm and a docking terminal provided by an embodiment of the present invention;

[0034] Fig. 9 A schematic diagram of the structure of a combined housing, a splicing piece and an alloy drilling strip provided in an embodiment of the present invention;

[0035] Fig.10 For the present invention Fig. 9 The enlarged view of point D in the middle;

[0036] Fig.11 This is a schematic structural diagram of a guide platform, a tightening head and a tension spring provided in an embodiment of the present invention.

[0037] In the figure: 101 construction road surface, 102 sampling channel, 11 base, 111 rotating wheel, 112 counterweight plate, 12 drive control platform, 121 gear shaft, 13 guide platform, 131 tightening head, 132 tension spring, 14 linear electric cylinder I, 15 synchronous drive control arm, 16 overhead support leg, 17 slot arm, 18 track, 19 screw rod, 21 arc sampling tube, 211 combined shell, 212 splicing piece, 22 probe end, 23 control arm, 24 partition, 25 extension arm, 251 docking end, 26 transmission groove, 31 alloy drilling strip, 32 synchronous traction plate, 33 linear electric cylinder II, 34 articulated seat, 35 connecting rod, 41 U-shaped frame, 42 moving arm, 43 rotating shaft, 44 polygonal sleeve, 45 clamping arm I, 46 clamping arm II, 461 linear electric cylinder III, 462 insert. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0039] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0040] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings.

[0044] Embodiment 1:

[0045] like Figure 1 , Figure 4 , Figure 5 and Figure 8As shown, this embodiment provides a road construction quality detection sampling device, including a base 11, a drive control platform 12, a guide platform 13 and an arc-shaped sampling barrel 21; the base 11 is erected on the upper side of the construction road surface 101, and a plurality of rotating wheels 111 are rotatably installed on the bottom of the base 11, and a plurality of counterweight plates 112 are detachably fixedly installed on the upper side of the base 11, so that the base 11 can be stably placed relative to the ground; the drive control platform 12 is fixedly installed on the base 11, and the guide platform 13 is fixedly installed on the side of the drive control platform 12, and the arc-shaped sampling barrel 21 is slidably connected to the guide platform 13, and the upper and lower ends of the arc-shaped sampling barrel 21 are respectively provided with a control arm 23 and a probe end 22; the end of the control arm 23 is detachably fixedly installed with a plurality of extension arms 25.

[0046] Among them, adjacent extension arms 25 are plugged and connected to each other through the docking ends 251 at their ends, and are plugged and connected through clearance fit or locked in position through fasteners; the extension arm 25 can pass through the guide platform 13 and be plugged and slidably connected with the arc-shaped cylinder on the top of the control platform 12.

[0047] like Figure 1 , Figure 5 and Fig.11 As shown, a plurality of tightening heads 131 are slidably installed on the outer side of the guide platform 13, and the plurality of tightening heads 131 can respectively abut against the side surface of the extension arm 25 where the transmission groove 26 is not provided, so as to ensure the stable movement of the extension arm 25 in the guide platform 13; an arc-shaped head is provided at the end of the tightening head 13 close to the guide platform 13, and circular rings are fixedly installed at both ends of the tension spring 132, and the two circular rings are detachably fixedly connected to the guide platform 13 and the tightening head 131 through fasteners.

[0048] like Fig. 9 As shown, a plurality of alloy drilling bars 31 are slidably mounted between the outer wall and the inner wall of the arc-shaped sampling tube 21, and the alloy drilling bars 31 can be protruded from the probing end 22, and one end of the alloy drilling bar 31 close to the control arm 23 is connected to the synchronous traction disc 32 through a steel wire rope; the inner side of the end of the arc-shaped sampling tube 21 close to the control arm 23 is provided with a plurality of grooves for the steel wire rope to pass through and slide; a linear electric cylinder II 33 for driving the synchronous traction disc 32 to move is installed in the control arm 23, and a partition 24 for sealing the active area of ​​the synchronous traction disc 32 is provided in the arc-shaped sampling tube 21 to prevent soil from seeping into the synchronous traction disc 32 and affecting the stable operation of the equipment.

[0049] Among them, an articulated seat 34 is detachably fixedly installed on the movable end of the linear electric cylinder II 33, and the articulated seat 34 is connected to the synchronous traction disk 32 through a connecting rod 35. The two ends of the connecting rod 35 are respectively integrally formed with a spherical structure, and the spherical structures at both ends of the connecting rod 35 are respectively engaged and rotatably connected with the bearing structures on the synchronous traction disk 32 and the articulated seat 34.

[0050] like Fig.10 As shown, a soil sample retention area is formed between the end surface of the partition 24 close to the probe end 22 and the inner side surface of the arc-shaped sampling tube 21; air holes are provided on the arc-shaped sampling tube 21, and when the arc-shaped sampling tube 21 collects soil samples, the soil samples can smoothly enter the arc-shaped sampling tube 21 while ensuring efficient interception of the soil.

[0051] like Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, a transmission groove 26 is provided on the outer side of the extension arm 25, and a gear shaft 121 and a hydraulic motor for driving the gear shaft 121 to rotate are installed on the control console 12. The gear shaft 121 and the hydraulic motor correspond to each other one by one, and a plurality of gears are provided respectively. A gear is integrally formed on the gear shaft 121, and the side of the gear passes through the arc tube and is connected to the transmission groove 26 by meshing transmission.

[0052] The specific details of using the road construction quality inspection sampling equipment to collect ground soil samples are as follows:

[0053] 1. Preparation before use;

[0054] Move the base 11 to the position where sampling is required; select the number of extension arms 25 required according to the sampling depth, adjust the distance between the bottom of the base 11 and the construction road surface 101, and change the distance between the arc center of the arc sampling tube 21 and the ground;

[0055] 2. Collect soil samples;

[0056] Manually splice and install multiple extension arms 25 at the end of the control arm 23, start the hydraulic motor, control the gear shaft 121 to rotate, and use the meshing transmission between the gear and the transmission groove 26 to allow the arc-shaped sampling tube 21 to be inserted into the ground;

[0057] At the same time, the linear electric cylinder II 33 is started to reciprocate and extend, driving the alloy drilling bar 31 to continuously extend and retract from the end of the probe end 22, to poke into the underground soil layer and divide this part of the soil layer; since the curvature of the multiple alloy drilling bars 31 is consistent with the curvature size of the arc-shaped sampling tube 21, the movement of the alloy drilling bars 31 is smooth and stable, and under the joint action of the multiple alloy drilling bars 31, a poking path consistent with the cross-sectional contour of the arc-shaped sampling tube 21 is reserved underground; as the arc-shaped sampling tube 21 continues to rotate, this part of the soil layer is collected into the arc-shaped sampling tube 21, completing the sampling and collection operation of the soil layer sample.

[0058] 3. Analyze soil samples;

[0059] The soil layer samples in the arc sampling tube 21 are analyzed. Since the soil layer samples are in an arc structure, they include both vertical and horizontal soil layer structures, so the permeability and shear strength of the soil layer in the horizontal direction can be fully understood, so as to fully understand the road surface conditions, analyze the corresponding treatment plans, and effectively reduce the uneven settlement of the road surface and road cracking that may occur in the future, thus laying a solid foundation for ensuring the overall quality of the project and extending the service life of the project.

[0060] In the above step 2, since the alloy drilling bar 31 only pokes the edge of the soil layer sample, it will not cause damage to the entire soil layer sample, so that the soil layer structure, the thickness of each layer, the vertical change of soil texture, and the distribution pattern of various substances in the soil in different soil layers can be fully understood.

[0061] In the above step 2, multiple extension arms 25 are spliced ​​and connected to each other, so that the rotational movement range of the arc-shaped sampling tube 21 is greatly increased, so that the insertion end 22 at the end of the arc-shaped sampling tube 21 can be extended from another position on the ground to form a sampling channel 102 on the ground. Since the sampling channel 102 has the same contour shape as the arc-shaped sampling tube 21, both are arc-shaped, and both ends of the sampling channel 102 are exposed on the ground, when the soil is backfilled, the formation of air pockets inside the road base surface can be avoided, so that the soil can be restored to a state close to its original state more quickly after backfilling.

[0062] During the implementation of the above-mentioned scheme of this embodiment, the disassembly and installation direction of two adjacent extension arms 25 is horizontal, and the length of the extension arm 25 is greater than the spacing between the arc tube and the guide platform 13, multiple tightening heads 131 tighten and limit multiple side surfaces of the extension arm 25, and the inner side surface of the arc tube abuts and fits with the outer side surface of the extension arm 25, so that horizontal movement will not occur between the multiple extension arms 25, effectively maintaining the state of splicing the multiple extension arms 25 with each other, and ensuring that the equipment collects soil samples smoothly and stably.

[0063] In order to facilitate the collection of soil samples from the arc-shaped sampling tube 21, Fig. 9 and Fig.10 As shown, the arc-shaped sampling tube 21 is composed of a plurality of combined shells 211, and the adjacent combined shells 211 are detachably fixedly connected together by splicing pieces 212; by removing the splicing pieces 212, the combined shells 211 on one side are rotated and pulled out from the plurality of alloy drilling bars 31 around the arc center of the arc-shaped sampling tube 21 in turn, and the soil layer samples are exposed.

[0064] like Fig. 9As shown, the end of the alloy drilling bar 31 penetrates and retracts from the edge of the probe end 22 without affecting the stable retention of the soil layer sample between the end surface of the partition 24 close to the probe end 22 and the inner side surface of the arc-shaped sampling tube 21.

[0065] Embodiment 2:

[0066] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, a track 18 is fixedly installed on the base 11, a U-shaped frame 41 is slidably installed on the track 18, a screw rod 19 is rotatably installed on the upper side of the track 18 through a bracket, a driving motor I for driving the screw rod 19 to rotate is installed on the track 18, the screw rod 19 is connected to the movable arm 42 by a threaded transmission, a rotating shaft 43 and a driving motor II for driving the rotating shaft 43 to rotate are installed on the U-shaped frame 41, a plurality of clamping arms I 45 are fixedly installed on the side of the rotating shaft 43, a clamping arm II 46 is slidably installed on the clamping arm I 45, and a linear electric cylinder III 461 for driving the clamping arm II 46 to slide is installed on the side of the clamping arm I 45; the extension arm 25 is clamped between the clamping arm I 45 and the clamping arm II 46, and a plurality of inserts 462 that can be plugged into the transmission groove 26 on the outer side of the extension arm 25 are fixedly installed on the inner side of the clamping arm II 46.

[0067] like Figure 7 As shown, the clamp arm Ⅰ45 is connected to the rotating shaft 43 through a polygonal sleeve 44, and the polygonal sleeve 44 is detachably fixedly connected to the polygonal column on the rotating shaft 43. The number of corners of the cross section of the polygonal sleeve 44 is consistent with the number of clamp arms Ⅰ45 used, so that multiple clamp arms Ⅰ45 are arranged at equal intervals on the outside of the rotating shaft 43 along the axial direction of the rotating shaft 43, and the extension direction of the multiple clamp arms Ⅰ45 is centered on the axis of the rotating shaft 43, and is arranged at equal angles on the outside of the rotating shaft 43.

[0068] The driving motors I and II are started alternately to drive the clamping arms I 45 and II 46 to move horizontally along the axis extension direction of the rotating shaft 43 and rotate around the axis of the rotating shaft 43. During this process, the linear electric cylinder III 461 corresponding to the starting position is started to release the clamping state of the extension arm 25 by the clamping arms I 45 and II 46. Figure 5As shown, the extension arms 25 clamped by multiple clamp arms Ⅰ 45 and clamp arms Ⅱ 46 are connected to each other and installed at the end of the control arm 23 in sequence, thereby increasing the extension distance of the arc sampling tube 21 and improving the extension range of the soil sample collected by the arc sampling tube 21 within the ground, so that the soil sample can cover more soil layer information, reflect the mechanical properties of the soil layer from different positions and levels, and help to fully understand the changes in the shear strength of the soil layer in the horizontal direction.

[0069] Compared with the manual splicing and assembly solution in Example 1, the above-mentioned solution of this embodiment can implement automatic positioning and connection and docking of multiple extension arms 25, so that the operator can control the entire process with the help of remote control technology. It has high automation efficiency and good convenience, and can avoid the danger caused by direct contact of the operator, thereby improving the overall safety factor of the equipment and ensuring safety and reliability during the entire soil sample collection operation.

[0070] Embodiment three:

[0071] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, overhead legs 16 are rotatably installed at both ends of the base 11, a linear electric cylinder Ⅰ14 is fixedly installed on the lower side of the control platform 12, and a synchronous control arm 15 is fixedly installed on the movable end of the linear electric cylinder Ⅰ14, and both ends of the synchronous control arm 15 are respectively slidably connected with the groove arms 17 on the sides of the two overhead legs 16.

[0072] Start the linear electric cylinder I14 to control the movement of the synchronous drive arm 15. Utilize the sliding engagement between the end of the synchronous drive arm 15 and the slot arm 17 to drive the two overhead legs 16 to rotate synchronously to open or close, so that the rotating wheel 111 is lifted off the ground, and the base 11 is lifted and erected above the construction road surface 101. In this state, the bottom of the overhead leg 16 is in contact with the upper side of the construction road surface 101, which effectively improves the placement stability of the equipment, avoids shaking, deviation, etc. of the equipment due to unstable placement during construction, and ensures the accuracy of the soil sample collection operation and the safety of the equipment operation.

[0073] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

[0074] Except for the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present invention, the remaining technical features will not be described here in detail.

Claims

1. A road construction quality detection sampling device, characterized in that: The invention comprises a base (11) erected on the upper side of a construction road surface (101), a driving control platform (12) installed on the upper side of the base (11), and a guide platform (13) installed on the side of the driving control platform (12); an arc-shaped sampling tube (21) is slidably mounted on the inner side of the guide platform (13), and a control arm (23) and a probe end (22) are respectively arranged at the upper and lower ends of the arc-shaped sampling tube (21); The end of the control arm (23) is detachably fixedly mounted with a plurality of extension arms (25), and adjacent extension arms (25) are plug-fitted and connected to each other via butt joint ends (251) at their ends, and the extension arms (25) can penetrate the guide platform (13) and be plug-fitted and slidably connected to the arc-shaped cylinder at the top of the drive control platform (12), and a transmission groove (26) is arranged on the outer side of the extension arm (25), and a plurality of gear shafts (121) are rotatably mounted on the drive control platform (12), and a gear is integrally formed on the gear shaft (121), and the side of the gear penetrates the arc-shaped cylinder and is connected to the transmission groove (26) by meshing transmission; A plurality of alloy drilling bars (31) are slidably mounted between the outer wall and the inner wall of the arc-shaped sampling tube (21). The alloy drilling bars (31) can be extended and retracted from the edge of the probe end (22). One end of the alloy drilling bar (31) close to the control arm (23) is connected to the synchronous traction disc (32) via a steel wire rope. A linear electric cylinder II (33) for driving the synchronous traction disc (32) to move is installed in the control arm (23). A partition (24) for sealing the active area of ​​the synchronous traction disc (32) is provided in the arc-shaped sampling tube (21). A soil layer sample retention area is formed between the end surface of the partition (24) close to the probe end (22) and the inner side surface of the arc-shaped sampling tube (21).

2. The road construction quality detection sampling equipment according to claim 1 is characterized in that: An articulated seat (34) is detachably fixedly mounted on the movable end of the linear electric cylinder II (33); the articulated seat (34) is connected to the synchronous traction disc (32) via a connecting rod (35); and the two ends of the connecting rod (35) are respectively engaged and rotatably connected with the articulated seat (34) and the synchronous traction disc (32).

3. The road construction quality detection sampling equipment according to claim 1 is characterized in that: A track (18) is fixedly mounted on the base (11), a U-shaped frame (41) is slidably mounted on the track (18), a rotating shaft (43) is rotatably mounted on the U-shaped frame (41), a plurality of clamping arms I (45) are fixedly mounted on the side of the rotating shaft (43), and a clamping arm II (46) is slidably mounted on the clamping arm I (45); The extension arm (25) is clamped between the clamp arm I (45) and the clamp arm II (46), and a plurality of inserts (462) capable of being plugged into the transmission groove (26) on the outer side of the extension arm (25) are fixedly mounted on the inner side of the clamp arm II (46).

4. The road construction quality detection sampling equipment according to claim 3 is characterized in that: The clamp arm I (45) is connected to the rotating shaft (43) via a polygonal sleeve (44), and the polygonal sleeve (44) is detachably fixedly connected to the polygonal column on the rotating shaft (43).

5. The road construction quality detection sampling equipment according to claim 1 is characterized in that: The arc-shaped sampling cylinder (21) is composed of a plurality of combined shells (211) spliced ​​together, and adjacent combined shells (211) are detachably fixedly connected together via a splicing piece (212).

6. The road construction quality detection sampling equipment according to claim 1 is characterized in that: A plurality of tightening heads (131) are slidably mounted on the outer side of the guide platform (13), and the plurality of tightening heads (131) can respectively abut against the side surface of the extension arm (25) where the transmission groove (26) is not provided.

7. The road construction quality detection sampling equipment according to claim 1 is characterized in that: A plurality of rotating wheels (111) are rotatably mounted on the bottom of the base (11), and overhead legs (16) are rotatably mounted on both ends of the base (11).

8. The road construction quality detection sampling equipment according to claim 7 is characterized in that: A linear electric cylinder I (14) is fixedly mounted on the lower side of the drive control platform (12), a synchronous drive control arm (15) is fixedly mounted on the movable end of the linear electric cylinder I (14), and both ends of the synchronous drive control arm (15) are respectively slidably connected to the slot arms (17) on the sides of the two overhead legs (16).

9. The road construction quality detection sampling equipment according to claim 4 is characterized in that: A plurality of clamping arms I (45) are arranged at equal intervals on the outside of the rotating shaft (43) along the axial direction of the rotating shaft (43).

10. The road construction quality detection sampling equipment according to claim 4, characterized in that: The extension direction of the plurality of clamp arms I (45) is centered on the axis of the rotating shaft (43) and is arranged at equal angular intervals outside the rotating shaft (43).

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