A multi-size adjustable concrete sampling device and method thereof

Abstract

The present invention provides a multi-size adjustable concrete sampling device and method thereof, belonging to the field of concrete sampling technology, comprising a U-shaped bracket plate, a drive assembly, a cylindrical sampling assembly, a partition assembly, and a pusher assembly, wherein the cylindrical sampling assembly is arranged on the inner side of the U-shaped bracket plate, and the drive assembly is mounted on the inner wall of the U-shaped bracket plate, and is used to drive the cylindrical sampling assembly to move up and down. When the cylindrical sampling assembly moves downward, it drills into the interior of the ground concrete to sample the ground concrete, and the partition assembly is buried in the ground concrete. Compared with the prior art, the embodiment of the present invention can separate the concrete sample core from the lower concrete during the concrete sampling process, thereby preventing the concrete sample core from being pulled out of the ground concrete by the lower concrete and then falling out of the sampler, thereby improving the sampling effect.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete sampling, in particular to a multi-size adjustable concrete sampling device and a method thereof. Background Art

[0002] Concrete is one of the most important civil engineering materials in contemporary times. It is an artificial stone made of cementitious materials, granular aggregates (also called aggregates), water, and admixtures and additives added when necessary in a certain proportion, which are evenly mixed, compacted into a dense shape, and cured and hardened. Concrete has the characteristics of abundant raw materials, low price, and simple production process, which makes its usage more and more. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades. At present, after the pavement concrete is poured and paved, in order to test the quality of the paved concrete, it is necessary to use a special drilling rig to drill core samples from the ground concrete to test the concrete strength or observe the internal quality of the concrete.

[0003] In the prior art, when a special drilling rig is used to sample ground concrete, the drill barrel in the drill rig is drilled into the ground concrete. At this time, part of the concrete flows into the drill barrel and serves as a concrete sample core. When the drill barrel drills into the predetermined depth, the drill barrel is pushed out from the inside of the ground concrete, and the concrete sample core is taken out from the inside of the ground concrete at the same time. However, in this process, since the root of the concrete sample core is still in a bonding state with the lower concrete, the lower concrete will exert a large pulling force on the concrete sample core, thereby causing the concrete sample core to detach from the inside of the drill barrel, resulting in sampling failure. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a concrete sampling device with multi-size adjustment and a method thereof.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A multi-size adjustable concrete sampling device includes a U-shaped bracket plate, a driving assembly, a cylindrical sampling assembly, a partition assembly and a pushing assembly.

[0007] The cylindrical sampling assembly is arranged inside the U-shaped bracket plate.

[0008] The driving assembly is mounted on the inner wall of the U-shaped bracket plate and is used to drive the cylindrical sampling assembly to move up and down. When the cylindrical sampling assembly moves down, it drills into the ground concrete to sample the ground concrete.

[0009] The partition assembly is buried inside the ground concrete. When the cylindrical sampling assembly drills into the ground concrete to a predetermined depth, the partition assembly is used to separate the concrete inside the cylindrical sampling assembly from the lower concrete.

[0010] The pushing assembly is arranged inside the cylindrical sampling assembly. When the cylindrical sampling assembly moves upward to bring the concrete sample core out from inside the ground concrete, the pushing assembly is used to push the concrete sample core out from inside the cylindrical sampling assembly.

[0011] As a further improvement of the present invention: the driving assembly includes a hydraulic cylinder, a mounting plate and a lifting plate,

[0012] The hydraulic cylinder is fixedly mounted on the inner top wall of the U-shaped bracket plate, the lifting plate is arranged at the output end of the hydraulic cylinder and is controlled to move up and down by the hydraulic cylinder, and the mounting plate is fixedly arranged at one end of the lifting plate.

[0013] The cylindrical sampling assembly includes a motor, a sampling barrel and a cutting blade.

[0014] The motor is fixedly mounted on the upper portion of the mounting plate, the sampling barrel is arranged below the mounting plate and connected to the output shaft of the motor, and the cutting blades are provided in several groups, and several of the cutting blades are fixedly mounted on the bottom of the sampling barrel.

[0015] As a further improvement of the present invention: a vertically distributed guide rail is fixedly provided on the inner wall of the U-shaped bracket plate, and a slider is fixedly provided on one end of the lifting plate away from the mounting plate, and the slider is slidably engaged with the guide rail.

[0016] As a further improvement of the present invention: the partition assembly includes a partition, the partition is buried inside the ground concrete, the surface of the partition is coated with an oily substance, and a guide rod is fixedly provided on the upper part of the partition.

[0017] As a further improvement of the present invention: the pusher assembly includes a push plate, a threaded sleeve, a screw and a handle.

[0018] The push plate is arranged inside the sampling barrel, the threaded sleeve is fixedly arranged on the upper part of the push plate, one end of the screw extends into the inside of the threaded sleeve and is threadedly engaged with the threaded sleeve, and the other end extends to the upper outside of the sampling barrel and is connected to the handle.

[0019] As a further improvement of the present invention: a guide assembly is further provided inside the sampling cylinder, and the guide assembly is used to provide a guide for the movement of the push plate.

[0020] The guide assembly includes a guide rod and a guide sleeve. The guide sleeve is fixedly arranged on the upper part of the push plate. One end of the guide rod is fixedly connected to the inner top wall of the sampling tube, and the other end extends into the interior of the guide sleeve and is telescopically matched with the guide sleeve.

[0021] As a further improvement of the present invention: a limiting assembly is further provided on the inner wall of the sampling cylinder, and during the upward movement of the sampling cylinder, the limiting assembly is used to confine the concrete sample core inside the sampling cylinder.

[0022] As a further improvement of the present invention: the inner wall of the sampling tube is provided with a slot along the length direction.

[0023] The limiting assembly includes a limiting block and an elastic member.

[0024] The limit block is rotatably arranged inside the slot, and the limit block is obliquely distributed. One end of the elastic member is connected to the inner wall of the slot, and the other end is connected to the limit block, so as to provide elastic support for the limit block.

[0025] An elastic rope is also provided on the upper part of the push plate, and the elastic rope extends to the inside of the slot at one end away from the push plate and is connected to the limit block. A support plate is fixedly provided on the inner wall of the sampling tube, and a guide wheel is rotatably provided on the side wall of the support plate, and the guide wheel is used to provide guidance for the elastic rope.

[0026] As a further improvement of the present invention: a bottom plate is fixedly provided at the bottom of the U-shaped bracket plate, and a plurality of casters are provided at the bottom of the bottom plate.

[0027] A multi-size adjustable concrete sampling method, using the multi-size adjustable concrete sampling device, comprises the following steps:

[0028] During the ground concrete paving process, the partition component is buried in the ground concrete. According to the position of the partition component, the cylindrical sampling component is moved to the position directly above the partition component, and then the driving component drives the cylindrical sampling component to move downward. When the cylindrical sampling component moves downward, it drills into the ground concrete. At this time, a part of the concrete enters the cylindrical sampling component and acts as a concrete sample core. When the cylindrical sampling component drills into the predetermined depth, the partition component separates the concrete sample core inside the cylindrical sampling component from the lower concrete. Then the driving component drives the cylindrical sampling component to move upward. When the cylindrical sampling component moves upward, the concrete inside it is brought out from the ground concrete. Then the pushing component is used to push the concrete sample core out of the cylindrical sampling component. Finally, the concrete sample core can be tested.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] In the embodiment of the present invention, when it is necessary to sample the ground concrete, the U-shaped bracket plate can be placed on the upper part of the ground concrete, so that the cylindrical sampling assembly is located just above the partition assembly, and then the driving assembly drives the cylindrical sampling assembly to move downward, and the cylindrical sampling assembly drills into the ground concrete when it moves downward, and at this time, a part of the concrete enters the cylindrical sampling assembly. When the cylindrical sampling assembly drills into the predetermined depth, the partition assembly separates the concrete inside the cylindrical sampling assembly from the lower concrete, and then the driving assembly drives the cylindrical sampling assembly to move upward, and the concrete inside the cylindrical sampling assembly is sampled when it moves upward. Concrete is brought out from the inside of the ground concrete. At this time, the concrete inside the cylindrical sampling component is used as the concrete sample core to complete the sampling operation. After the cylindrical sampling component brings the concrete inside it out of the ground concrete, the pushing component is used to push the concrete sample core out of the inside of the cylindrical sampling component, and then the concrete sample core can be tested. Compared with the existing technology, during the concrete sampling process, the concrete sample core and the lower concrete can be separated, so as to avoid the concrete sample core being pulled by the lower concrete and falling from the inside of the sampler when the concrete sample core is brought out of the ground concrete, thereby improving the sampling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a concrete sampling device with multiple size adjustments;

[0032] Figure 2 A schematic diagram of the structure of a multi-size adjustable concrete sampling device in working state Figure 1 ;

[0033] Figure 3 A schematic diagram of the structure of a multi-size adjustable concrete sampling device in working state Figure 2 ;

[0034] Figure 4 This is a schematic diagram of the structure inside the sampling cylinder of a multi-size adjustable concrete sampling device;

[0035] Figure 5 for Figure 1 A magnified schematic diagram of area A in the middle;

[0036] Figure 6 for Figure 4 A magnified schematic diagram of area B in the middle;

[0037] Figure 7 for Figure 4 Enlarged schematic diagram of area C in the middle;

[0038] In the figure: 10-U-shaped bracket plate, 101-bottom plate, 102-castor, 103-guide rail, 20-drive assembly, 201-hydraulic cylinder, 202-mounting plate, 203-lifting plate, 204-slider, 30-cylindrical sampling assembly, 301-motor, 302-sampling barrel, 303-cutting blade, 304-notch, 305-guide wheel, 306-support plate, 40-partition assembly, 401-partition plate, 402-guide rod, 50-pushing assembly, 501-push plate, 502-threaded sleeve, 503-elastic rope, 504-screw, 505-handle, 60-guide assembly, 601-guide rod, 602-guide rod, 70-limiting assembly, 701-limiting block, 702-elastic member. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0040] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0041] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying 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.

[0042] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0043] See also Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4The present embodiment provides a multi-size adjustable concrete sampling device, including a U-shaped bracket plate 10, a driving assembly 20, a cylindrical sampling assembly 30, a partition assembly 40 and a pushing assembly 50. The cylindrical sampling assembly 30 is arranged on the inner side of the U-shaped bracket plate 10, and the driving assembly 20 is installed on the inner wall of the U-shaped bracket plate 10, and is used to drive the cylindrical sampling assembly 30 to move up and down. When the cylindrical sampling assembly 30 moves down, it drills into the ground concrete to sample the ground concrete. The partition assembly 40 is buried in the ground concrete. When the cylindrical sampling assembly 30 drills into the ground concrete to a predetermined depth, the partition assembly 40 is used to separate the concrete inside the cylindrical sampling assembly 30 from the lower concrete. The pushing assembly 50 is arranged inside the cylindrical sampling assembly 30. When the cylindrical sampling assembly 30 moves up to bring the concrete sample core out of the ground concrete, the pushing assembly 50 is used to push the concrete sample core out of the cylindrical sampling assembly 30.

[0044] When it is necessary to sample the ground concrete, the U-shaped bracket plate 10 can be placed on the upper part of the ground concrete, so that the cylindrical sampling assembly 30 is located just above the partition assembly 40, and then the driving assembly 20 drives the cylindrical sampling assembly 30 to move downward. When the cylindrical sampling assembly 30 moves downward, it drills into the interior of the ground concrete. At this time, a part of the concrete enters the cylindrical sampling assembly 30. When the cylindrical sampling assembly 30 drills into the predetermined depth, the partition assembly 40 separates the concrete inside the cylindrical sampling assembly 30 from the lower concrete. Then the driving assembly 20 drives the cylindrical sampling assembly 30 to move upward. When the cylindrical sampling assembly 30 moves upward, the concrete inside it is brought out from the interior of the ground concrete. At this time, the concrete inside the cylindrical sampling assembly 30 is used as a concrete sample core, thereby completing the sampling operation. After the cylindrical sampling assembly 30 brings the concrete inside it out of the ground concrete, the pushing assembly 50 is used to push the concrete sample core out of the cylindrical sampling assembly 30, and then the concrete sample core can be tested.

[0045] See also Figure 1 as well as Figure 5In one embodiment, the driving assembly 20 includes a hydraulic cylinder 201, a mounting plate 202 and a lifting plate 203. The hydraulic cylinder 201 is fixedly mounted on the inner top wall of the U-shaped bracket plate 10. The lifting plate 203 is arranged at the output end of the hydraulic cylinder 201 and is controlled to move up and down by the hydraulic cylinder 201. The mounting plate 202 is fixedly arranged at one end of the lifting plate 203. The cylindrical sampling assembly 30 includes a motor 301, a sampling barrel 302 and a cutting blade 303. The motor 301 is fixedly mounted on the upper part of the mounting plate 202. The sampling barrel 302 is arranged below the mounting plate 202 and is connected to the output shaft of the motor 301. The cutting blade 303 is provided in several groups, and several of the cutting blades 303 are fixedly mounted on the bottom of the sampling barrel 302.

[0046] When sampling of the ground concrete is required, the U-shaped bracket plate 10 can be placed on the upper part of the ground concrete so that the sampling barrel 302 is located directly above the partition assembly 40. Then, the hydraulic cylinder 201 and the motor 301 are started. The hydraulic cylinder 201 extends and drives the lifting plate 203 to move downward. The lifting plate 203 drives the mounting plate 202, the motor 301 and the sampling barrel 302 to move downward synchronously. At the same time, the motor 301 drives the sampling barrel 302 to rotate, thereby driving the multiple cutting blades 303 at the bottom of the sampling barrel 302 to rotate. When the sampling barrel 302 moves downward so that the multiple cutting blades 303 at the bottom thereof act on the ground concrete, the multiple cutting blades 303 3 is used to cut the ground concrete, and at the same time, the sampling tube 302 drills into the ground concrete. At this time, a part of the concrete enters the sampling tube 302 and serves as a concrete sample core. When the sampling tube 302 drills into the ground concrete to a predetermined depth, the partition assembly 40 separates the concrete sample core inside the sampling tube 302 from the lower concrete. Then the hydraulic cylinder 201 retracts, thereby driving the lifting plate 203 to move upward. The lifting plate 203 drives the mounting plate 202, the motor 301 and the sampling tube 302 to move upward as a whole. The sampling tube 302 brings the concrete sample core inside it out of the ground concrete, thereby completing the concrete sampling operation.

[0047] See also Figure 1 、 Figure 2 as well as Figure 3 In one embodiment, a vertically distributed guide rail 103 is fixedly provided on the inner wall of the U-shaped bracket plate 10, and a slider 204 is fixedly provided on one end of the lifting plate 203 away from the mounting plate 202, and the slider 204 slides with the guide rail 103.

[0048] The sliding cooperation between the slider 204 and the guide rail 103 can improve the stability of the lifting plate 203, the mounting plate 202, the motor 301 and the sampling tube 302 when they move up and down.

[0049] See also Figure 3 In one embodiment, the partition assembly 40 includes a partition 401, which is buried inside the ground concrete, and the surface of the partition 401 is coated with an oily substance.

[0050] During the paving process of the ground concrete, a partition 401 with an oily substance on its surface is pre-buried in the concrete. When sampling of the ground concrete is needed later, the sampling tube 302 is moved to the position just above the partition 401, and then the sampling tube 302 is driven downward by the hydraulic cylinder 201, and the sampling tube 302 is driven to rotate by the motor 301. The sampling tube 302 drills into the ground concrete during the downward movement and rotation. When the sampling tube 302 moves down until the cutting blade 303 contacts the upper surface of the partition 401, the hydraulic cylinder 201 retracts, thereby driving the sampling tube 302 to move upward to bring the concrete sample core therein out from the ground concrete. After the cutting blade 303 contacts the upper surface of the partition 401, the partition 401 is used to separate the concrete sample core inside the sampling tube 302 from the lower concrete, thereby avoiding the lower concrete from being sampled. The concrete sample core inside the sampling tube 302 generates a large pulling force, thereby ensuring that the concrete sample core can be smoothly brought out of the ground concrete by the sampling tube 302, and because the surface of the partition 401 is coated with an oily substance, the oily substance will form an isolation layer on the surface of the partition 401, thereby reducing the adhesion between the concrete and the partition 401. Therefore, when the sampling tube 302 reaches the upper surface of the partition 401 and moves upward, the concrete sample core inside the sampling tube 302 and the upper surface of the partition 401 have a small adhesion force, and the concrete sample core can smoothly move upward with the sampling tube 302, thereby further improving the concrete sampling effect; according to the different buried depths of the partition 401 in the ground concrete, the cutting edge 303 at the bottom of the sampling tube 302 contacts the upper surface of the partition 401, and the drilling depth of the sampling tube 302 is different, thereby obtaining concrete sample cores of different lengths.

[0051] See also Figure 3 In one embodiment, a guide rod 402 is fixedly provided on the upper portion of the partition 401 .

[0052] After the partition 401 is buried in the ground concrete, the guide rod 402 extends vertically above the ground concrete to guide the sampling position. With the guidance of the guide rod 402, the staff can smoothly place the sampling tube 302 directly above the partition 401, thereby smoothly performing the sampling operation; in the specific sampling process, as the sampling tube 302 moves downward, when the sampling tube 302 drills into the ground concrete, the guide rod 402 is located outside the sampling tube 302. When the sampling tube 302 completes sampling of the concrete, the staff can cut off the guide rod 402 that leaks out of the ground concrete, thereby preventing the guide rod 402 from protruding above the ground concrete, thereby preventing damage to vehicles and pedestrians.

[0053] In one embodiment, the side walls of the guide rod 402 and the side walls of the sampling tube 302 are both provided with scales. By setting the scales on the side walls of the guide rod 402, the depth of the partition 401 inside the ground concrete can be intuitively displayed. With the help of this depth information, the staff can conveniently control the drilling depth of the sampling tube 302 inside the ground concrete. For example, when the scale on the side wall of the guide rod 402 shows that the depth of the partition 401 is H, the staff operates the hydraulic cylinder 201 to make the sampling tube 302 drill into the ground concrete to the same depth of H, so that the cutting blade 303 can reach the upper surface of the partition 401.

[0054] In one embodiment, in order to facilitate smooth shearing of the guide rod 402 , the guide rod 402 is made of plastic or rubber.

[0055] See also Figure 4 In one embodiment, the pushing assembly 50 includes a pushing plate 501, a threaded sleeve 502, a screw 504 and a handle 505. The pushing plate 501 is arranged inside the sampling barrel 302, and the threaded sleeve 502 is fixedly arranged on the upper part of the pushing plate 501. One end of the screw 504 extends into the interior of the threaded sleeve 502 and is threadedly engaged with the threaded sleeve 502, and the other end extends to the outside above the sampling barrel 302 and is connected to the handle 505.

[0056] After the sampling barrel 302 brings the concrete sample core inside it out of the concrete on the ground, the staff can rotate the handle 505, thereby driving the screw 504 to rotate, and utilizing the threaded cooperation between the screw 504 and the threaded sleeve 502 to drive the push plate 501 to move downward along the inside of the sampling barrel 302. When the push plate 501 moves downward, it acts on the concrete sample core, thereby pushing the concrete sample core out from the bottom of the sampling barrel 302.

[0057] See also Figure 4 In one embodiment, a guide assembly 60 is further provided inside the sampling cylinder 302, and the guide assembly 60 is used to provide a guiding effect on the movement of the push plate 501. Specifically, the guide assembly 60 includes a guide rod 601 and a guide sleeve 602. The guide sleeve 602 is fixedly provided on the upper part of the push plate 501. One end of the guide rod 601 is fixedly connected to the inner top wall of the sampling cylinder 302, and the other end extends to the inside of the guide sleeve 602 and is telescopically matched with the guide sleeve 602.

[0058] When the screw 504 rotates, the push plate 501 can smoothly move downward along the inside of the sampling tube 302 through the telescopic cooperation of the guide rod 601 and the guide sleeve 602, thereby steadily and smoothly pushing the concrete sample core out of the sampling tube 302.

[0059] See also Figure 4 In one embodiment, a limiting assembly 70 is further provided on the inner wall of the sampling cylinder 302. When the sampling cylinder 302 moves upward, the limiting assembly 70 is used to limit the concrete sample core inside the sampling cylinder 302, thereby preventing the concrete sample core from falling and improving the sampling effect.

[0060] See also Figure 4 、 Figure 6 as well as Figure 7 In one embodiment, a slot 304 is provided on the inner wall of the sampling cylinder 302 along the length direction, and the limiting assembly 70 includes a limiting block 701 and an elastic member 702, the limiting block 701 is rotatably arranged inside the slot 304, and the limiting block 701 is inclined. One end of the elastic member 702 is connected to the inner wall of the slot 304, and the other end is connected to the limiting block 701, for providing elastic support for the limiting block 701, and an elastic rope 503 is further provided on the upper part of the push plate 501, and the end of the elastic rope 503 away from the push plate 501 extends to the inside of the slot 304 and is connected to the limiting block 701, a support plate 306 is fixedly provided on the inner wall of the sampling cylinder 302, and a guide wheel 305 is rotatably provided on the side wall of the support plate 306, and the guide wheel 305 is used to provide guidance for the elastic rope 503.

[0061] When the sampling tube 302 is drilled into the ground concrete, the limit block 701 is elastically supported by the elastic member 702 and slides downwardly in contact with the outer wall of the concrete sample core. When the sampling tube 302 moves upward, the limit block 701 is supported by the elastic member 702, and one end of the limit block 701 extends from the inside of the notch 304 and is pressed against the side wall of the concrete sample core. As the sampling tube 302 moves upward, the limit block 701 supports the side wall of the concrete sample core and drives the concrete sample core to move upward with the sampling tube 302, so that the concrete sample core can be smoothly taken out from the ground concrete. When the concrete sample core is taken out from the ground concrete After taking it out, the staff rotates the handle 505, which in turn drives the screw 504 to rotate. When the screw 504 rotates, it drives the push plate 501 to move downward along the inside of the sampling tube 302. When the push plate 501 moves downward, it pulls one end of the elastic rope 503. When one end of the elastic rope 503 is pulled, it drives the limit block 701 to rotate upward compared to the slot 304, so that one end of the limit block 701 is separated from the side wall of the concrete sample core. Subsequently, the downward-moving push plate 501 acts on the top of the concrete sample core, thereby pushing the concrete sample core out of the sampling tube 302. In the above-mentioned process of the concrete sample core being pushed out of the sampling tube 302, the elastic rope 503 is gradually stretched under tension.

[0062] In one embodiment, the elastic rope 503 can be a rubber rope or a silicone rope, which is not limited here. The elastic member 702 can be a spring or a metal shrapnel, which is not limited here.

[0063] See also Figure 1 In one embodiment, a base plate 101 is fixedly provided at the bottom of the U-shaped bracket plate 10 , and a plurality of casters 102 are provided at the bottom of the base plate 101 .

[0064] By providing the casters 102 , the U-shaped support plate 10 can be flexibly moved, thereby facilitating the movement of the cylindrical sampling assembly 30 to directly above the partition assembly 40 .

[0065] In one embodiment, the oily substance may be paint or mineral oil, which is not limited here.

[0066] In one embodiment, a multi-size adjustable concrete sampling method is provided, the method comprising the following steps:

[0067] During the ground concrete paving process, the partition component 40 is buried in the ground concrete. According to the position of the partition component 40, the cylindrical sampling component 30 is moved to a position directly above the partition component 40, and then the driving component 20 drives the cylindrical sampling component 30 to move downward. When the cylindrical sampling component 30 moves downward, it drills into the ground concrete. At this time, a part of the concrete enters the cylindrical sampling component 30 and serves as a concrete sample core. When the cylindrical sampling component 30 drills into the predetermined depth, the partition component 40 separates the concrete sample core inside the cylindrical sampling component 30 from the lower concrete. Then the driving component 20 drives the cylindrical sampling component 30 to move upward. When the cylindrical sampling component 30 moves upward, the concrete inside it is brought out from the ground concrete. Then the pushing component 50 is used to push the concrete sample core out of the cylindrical sampling component 30. Finally, the concrete sample core can be tested.

[0068] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be embraced herein, and any reference signs in the claims should not be construed as limiting the claims to which they relate.

[0069] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A multi-size adjustable concrete sampling device, characterized in that: It comprises a U-shaped support plate (10), a driving assembly (20), a cylindrical sampling assembly (30), a partition assembly (40) and a pushing assembly (50), The cylindrical sampling assembly (30) is arranged inside the U-shaped bracket plate (10). The driving assembly (20) is mounted on the inner wall of the U-shaped bracket plate (10) and is used to drive the cylindrical sampling assembly (30) to move up and down. When the cylindrical sampling assembly (30) moves down, it drills into the ground concrete to sample the ground concrete. The separation component (40) is buried inside the ground concrete. When the cylindrical sampling component (30) is drilled into the ground concrete to a predetermined depth, the separation component (40) is used to separate the concrete inside the cylindrical sampling component (30) from the lower concrete. The pushing assembly (50) is arranged inside the cylindrical sampling assembly (30), and when the cylindrical sampling assembly (30) moves upward to bring the concrete sample core out from inside the ground concrete, the pushing assembly (50) is used to push the concrete sample core out from inside the cylindrical sampling assembly (30).

2. The multi-size adjustable concrete sampling device according to claim 1, characterized in that: The driving assembly (20) includes a hydraulic cylinder (201), a mounting plate (202), and a lifting plate (203). The hydraulic cylinder (201) is fixedly mounted on the inner top wall of the U-shaped bracket plate (10); the lifting plate (203) is arranged at the output end of the hydraulic cylinder (201) and is controlled by the hydraulic cylinder (201) to move up and down; the mounting plate (202) is fixedly mounted at one end of the lifting plate (203); The cylindrical sampling assembly (30) comprises a motor (301), a sampling cylinder (302) and a cutting blade (303). The motor (301) is fixedly mounted on the upper portion of the mounting plate (202), the sampling barrel (302) is arranged below the mounting plate (202) and is connected to the output shaft of the motor (301), and the cutting blades (303) are provided in a plurality of groups, and a plurality of the cutting blades (303) are fixedly mounted on the bottom of the sampling barrel (302).

3. The multi-size adjustable concrete sampling device according to claim 2, characterized in that: A vertically distributed guide rail (103) is fixedly provided on the inner wall of the U-shaped bracket plate (10), and a slider (204) is fixedly provided on one end of the lifting plate (203) away from the mounting plate (202), and the slider (204) is in sliding engagement with the guide rail (103).

4. The multi-size adjustable concrete sampling device according to claim 1, characterized in that: The partition assembly (40) comprises a partition (401), the partition (401) is buried inside the ground concrete, the surface of the partition (401) is smeared with an oily substance, and a guide rod (402) is fixedly provided on the upper part of the partition (401).

5. The multi-size adjustable concrete sampling device according to claim 2, characterized in that: The pushing assembly (50) includes a pushing plate (501), a threaded sleeve (502), a screw (504) and a handle (505). The push plate (501) is arranged inside the sampling barrel (302), the threaded sleeve (502) is fixedly arranged on the upper part of the push plate (501), one end of the screw rod (504) extends into the inside of the threaded sleeve (502) and is threadedly matched with the threaded sleeve (502), and the other end extends to the outside above the sampling barrel (302) and is connected to the handle (505).

6. The multi-size adjustable concrete sampling device according to claim 5, characterized in that: A guide assembly (60) is further provided inside the sampling cylinder (302), and the guide assembly (60) is used to provide a guide for the movement of the push plate (501). The guide assembly (60) includes a guide rod (601) and a guide sleeve (602). The guide sleeve (602) is fixedly arranged on the upper part of the push plate (501). One end of the guide rod (601) is fixedly connected to the inner top wall of the sampling tube (302), and the other end extends into the interior of the guide sleeve (602) and is telescopically matched with the guide sleeve (602).

7. The multi-size adjustable concrete sampling device according to claim 5, characterized in that: A limiting assembly (70) is also provided on the inner wall of the sampling barrel (302). During the upward movement of the sampling barrel (302), the limiting assembly (70) is used to limit the concrete sample core inside the sampling barrel (302).

8. The multi-size adjustable concrete sampling device according to claim 7, characterized in that: The inner wall of the sampling tube (302) is provided with a notch (304) along the length direction. The limiting assembly (70) includes a limiting block (701) and an elastic member (702). The limit block (701) is rotatably arranged inside the slot (304), and the limit block (701) is distributed obliquely. One end of the elastic member (702) is connected to the inner wall of the slot (304), and the other end is connected to the limit block (701), and is used to provide elastic support for the limit block (701). An elastic rope (503) is also provided on the upper part of the push plate (501), and one end of the elastic rope (503) away from the push plate (501) extends to the inside of the slot (304) and is connected to the limit block (701). A support plate (306) is fixedly provided on the inner wall of the sampling cylinder (302), and a guide wheel (305) is rotatably provided on the side wall of the support plate (306), and the guide wheel (305) is used to provide guidance for the elastic rope (503).

9. The multi-size adjustable concrete sampling device according to claim 1, characterized in that: A bottom plate (101) is fixedly provided at the bottom of the U-shaped bracket plate (10), and a plurality of casters (102) are provided at the bottom of the bottom plate (101).

10. A multi-size adjustable concrete sampling method, using the multi-size adjustable concrete sampling device according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: During the paving process of the ground concrete, the partition component (40) is buried in the ground concrete. According to the position of the partition component (40), the cylindrical sampling component (30) is moved to a position just above the partition component (40). Then, the driving component (20) drives the cylindrical sampling component (30) to move downward. When the cylindrical sampling component (30) moves downward, it drills into the ground concrete. At this time, a part of the concrete enters the cylindrical sampling component (30) and serves as a concrete sample core. When the cylindrical sampling component (30) drills into the predetermined depth, the partition component (40) separates the concrete sample core inside the cylindrical sampling component (30) from the lower concrete. Then, the driving component (20) drives the cylindrical sampling component (30) to move upward. When the cylindrical sampling component (30) moves upward, the concrete inside it is brought out from the ground concrete. Then, the pushing component (50) is used to push the concrete sample core out of the cylindrical sampling component (30). Finally, the concrete sample core is tested.

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