Sample core sampling device for pavement thickness detection
By introducing the sample core clamping assembly and the slide knock assembly into the pavement thickness detection device, the problems of sample core adhesion and retention are solved, and the effective take-out of the sample core and the accuracy of the detection results are achieved.
Patent Information
- Application Number
- CN202411361248.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2024-12-27
AI Technical Summary
During the core extraction process of the existing pavement thickness detection device, the sample core is easily stuck to the pavement structure, resulting in the inability to be effectively carried out, and the effect of gravity causes the vertical height of the sample core to change in the inner cylinder, affecting the detection results.
A device including a lifting assembly, a sample core sleeve assembly, a sample core clamping assembly and a sample core slide-and-drop-and-drop-and-drop-and-drop-and-drop-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-slip-and-s The adhesion of the sleeve ensures that the sample core can be effectively brought out and avoided retention.
It effectively solves the problem that the sample core cannot be fully brought out, reduces the adhesion between the sample core and the pavement structure, ensures that the sample core can fall smoothly without staying in the inner sleeve, and improves the accuracy and convenience of detection.
Smart Images
Figure CN119198178A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of highway engineering, and in particular to a core sampling device for detecting road surface thickness. Background Art
[0002] Highway engineering is a comprehensive engineering field, involving the planning, design, construction, maintenance and management of roads, bridges, tunnels, traffic engineering facilities, etc. In highway engineering, the pavement thickness is a crucial parameter, which is directly related to the load-bearing capacity, service life and driving safety of the highway.
[0003] When detecting the pavement thickness, it is necessary to take a core on the pavement, and evaluate the pavement quality of the highway project by the thickness of the core sample. The invention patent with announcement number CN202410274933.3 discloses a pavement thickness detection device for highway engineering, including a support plate, an outer cylinder, an inner cylinder, a first drive assembly, a second drive assembly and a third drive assembly. The outer cylinder is sleeved on the outside of the inner cylinder and attached to the inner cylinder. A through hole is opened on the support plate. The first drive assembly, the second drive assembly and the third drive assembly are all installed on the upper part of the support plate. The second drive assembly is used to drive the outer cylinder to move up and down. When the outer cylinder moves downward, the outer cylinder and the inner cylinder as a whole can pass through the through hole and be inserted into the interior of the pavement. When the outer cylinder moves upward, the outer cylinder moves out of the interior of the pavement before the inner cylinder. Compared with the prior art, this embodiment of the invention can smoothly bring the sample core out from the inside of the road surface when taking coring samples for road thickness detection, thereby preventing the sample core from being affected by the external road surface structure and improving the convenience of the coring process. However, when the device is in operation, the sample core brought out by the inner cylinder is placed in the inner cylinder only by the retention of the sample core. During the rising process of the inner cylinder, the sample core inside the inner cylinder may adhere to the road surface structure and not be brought out, resulting in inconvenience in extracting the sample core. In addition, as the inner cylinder rises and the third drive assembly drives its lateral movement, the retention of the sample core inside the inner cylinder is affected during this movement, causing its vertical height inside the inner cylinder to change due to gravity. Summary of the invention
[0004] The present invention aims to provide a core sampling device for road thickness detection, which solves the problem that the core sample cannot be effectively taken out and solves the problem that the core sample is retained in an inner sleeve.
[0005] The present invention is achieved through the following technical solutions:
[0006] A sample core sampling device for road thickness detection comprises a lifting assembly, a sample core sleeve assembly, a sample core clamping assembly and a sample core sliding and knocking assembly; the lifting assembly is used to drive the sample core sleeve assembly to rise and fall; the sample core sleeve assembly is arranged at the moving part of the lifting assembly, and the sample core sleeve assembly is used to drill into the road surface and bring out the sample core; the sample core clamping assembly is arranged at the sample core sleeve assembly, and the sample core clamping assembly is used to clamp the sample core brought out of the sample core sleeve assembly; the sample core sliding and knocking assembly is arranged at the sample core sleeve assembly, and the sample core sliding and knocking assembly is used to knock the sample core sleeve assembly to reduce the adhesion between the sample core sleeve assembly and the sample core. In order to solve the above technical problems and achieve corresponding technical effects, the present invention clamps the sample core through a sample core clamping assembly to ensure that the sample core can be effectively taken out of the road surface. At the same time, the sample core slides and knocks the assembly to reduce the adhesion between the sample core and the inner sleeve, thereby facilitating the sample core to fall due to its own gravity and not be trapped in the inner sleeve.
[0007] Further technical solutions:
[0008] The sample core sleeve assembly comprises an inner sleeve, a first drive motor, a mounting plate and an outer sleeve, wherein the mounting plate is connected to the lifting component of the lifting assembly, the first drive motor is arranged on the mounting plate, and the rotating shaft of the first drive motor passes through the mounting plate and is connected to the inner sleeve;
[0009] The first driving motor is used to drive the inner sleeve to rotate clockwise or counterclockwise;
[0010] The outer sleeve is arranged at the bottom end of the inner sleeve.
[0011] Further: the sample core clamping assembly comprises a fixed outer ring, a mounting ring, a fixed inner ring and a clamping assembly, the fixed outer ring is fixed to the mounting plate through a connecting plate, and the mounting ring is rotatably arranged on the inner wall of the fixed outer ring;
[0012] The fixed inner ring is sleeved on the rotating shaft of the first driving motor, and the outer edge of the fixed inner ring cooperates with the mounting ring, and drives the mounting ring to rotate in the fixed outer ring;
[0013] The clamping assembly cooperates with the mounting ring, and the mounting ring drives the clamping assembly to clamp the sample core or release the sample core.
[0014] Further: a plurality of inner oblique blocks are evenly arranged on the inner wall of the mounting ring, a plurality of mounting grooves are opened on the fixed inner ring, and a first limiting claw is rotatably arranged in each of the mounting grooves, and the claw head of the first limiting claw is located between two of the inner oblique blocks;
[0015] The first limiting claw is provided with a first spring, and the other end of the first spring is fixed to the inner wall of the mounting groove.
[0016] Further: a plurality of top inclined blocks are evenly arranged on the top surface of the mounting ring, a placement ring is fixedly connected to the fixed outer ring, a plurality of second limiting claws are evenly rotated in the placement ring, and the claw heads of the second limiting claws are located between two of the top inclined blocks;
[0017] A baffle is disposed on one side of each of the second limiting claws, and a second spring is disposed on the second limiting claw, and the other end of the second spring is fixed to the baffle.
[0018] Further: the clamping assembly includes a pushing member, a moving ring, an extrusion plate and a clamping member, the top end of the pushing member is connected to the mounting ring, the bottom end of the pushing member abuts against the top surface of the moving ring, and the pushing member pushes the moving ring to move up and down;
[0019] The top end of the extrusion plate is fixed to the bottom of the moving ring, and the extrusion plate extrudes the clamping piece, and the clamping piece is used to clamp the sample core in the inner sleeve.
[0020] Further: the clamping assembly also includes a side frame, an insertion rod and a third spring, the insertion rod is vertically set up on the top surface of the inner sleeve, the side frame is fixed to the inner wall of the movable ring, and the side frame is slidably inserted into the insertion rod;
[0021] The third spring is sleeved on the insertion rod and is arranged between the top surface of the inner sleeve and the bottom surface of the side frame;
[0022] The top surface of the moving ring is provided with a plurality of first grooves with uniform spacing, and the bottom surface and the top surface of the first grooves are connected by a smooth curved surface, and the bottom end of the pushing member can make a circular motion along the first grooves;
[0023] When the pushing member slides to the top surface of the first groove, the moving ring moves downward, and when the pushing member slides to the bottom surface of the first groove, the moving ring moves upward.
[0024] Further: a reset bottom plate is also arranged on the clamping member, and a fourth spring is arranged between the reset bottom plate and the outer wall of the inner sleeve;
[0025] The contact surface between the extrusion plate and the clamping member is set as an inclined structure. When the extrusion plate moves downward, the clamping member is squeezed inwardly, and the clamping member is clamped on the surface of the sample core. When the extrusion plate moves upward, the clamping member contacts and squeezes the sample core.
[0026] Further: the sample core sliding knocking assembly comprises a connecting rod, a knocking assembly and a knocking ring, the top end of the connecting rod is connected to the pushing member, the knocking assembly is arranged at the bottom end of the connecting rod, and the knocking ring is sleeved on the outer surface of the inner sleeve;
[0027] The knocking assembly includes a knocking rod, a mounting groove, a fifth spring and a retaining ring, wherein the mounting groove is fixed to the side wall of the connecting rod, the knocking rod is movably inserted into the mounting groove and a through hole horizontally opened on the connecting rod, the fifth spring is arranged in the mounting groove and sleeved on the knocking rod, the retaining ring is fixedly sleeved on one end of the knocking rod close to the knocking head, and the two ends of the fifth spring are respectively in contact with the inner wall of the mounting groove and the retaining ring;
[0028] The outer side surface of the knocking ring is provided with a plurality of second grooves with uniform spacing, and the knocking head of the knocking rod makes a circular motion along the second groove. When the knocking head enters the top surface from the bottom surface of the second groove along the smooth curved surface, the fifth spring is compressed. When the knocking head enters the bottom surface from the top surface of the second groove, the fifth spring rebounds and knocks on the bottom surface of the second groove.
[0029] The bottom surface of the second groove is aligned with the top surface of the first groove in the vertical direction, and the top surface of the second groove is aligned with the bottom surface of the first groove in the vertical direction.
[0030] Further: the lifting assembly includes a fixed frame, a second drive motor, a threaded rod and a transmission plate, the fixed frame is fixed to the moving frame, the second drive motor is arranged on the top surface of the fixed frame, and the drive shaft of the second drive motor passes through the fixed frame and is connected to the threaded rod, and the transmission plate is threadedly connected to the threaded rod;
[0031] The transmission plate is fixedly connected to the mounting plate, and an opening for supplying a sample core sleeve assembly is provided on the bottom plate of the movable frame.
[0032] Compared with the prior art, the present invention has the following advantages and beneficial effects:
[0033] 1. The present invention provides a core sampling device for road thickness detection. The core sample is clamped by a core clamping assembly to ensure that the core sample can be effectively taken out of the road surface. At the same time, the core sample is knocked by a core knocking assembly to reduce the adhesion between the core sample and the inner sleeve, so that the core sample falls due to its own gravity and does not remain in the inner sleeve.
[0034] 2. The present invention provides a core sampling device for road surface thickness detection. When the first driving motor drives the inner sleeve and the outer sleeve to rotate counterclockwise, the mounting ring is in a relaxed state relative to the stationary core clamping assembly of the inner sleeve, thereby realizing drilling work toward the road surface; when the first motor drives the inner sleeve and the outer sleeve to rotate clockwise, the core clamping assembly installed relative to the inner sleeve can be in a clamped state, and the inner sleeve is driven by the first motor to rotate with the core, thereby facilitating the separation of the core from the road surface structure.
[0035] 3. The present invention provides a core sampling device for road thickness detection. The core clamping assembly can repeatedly achieve the effects of loosening, knocking and clamping the sample core, so that the sample core can be lowered intermittently during the descent process. On the one hand, the adhesion between the sample core and the inner sleeve can be reduced by knocking to facilitate the descent of the sample core. On the other hand, it can prevent the sample core from falling to the ground and being damaged due to the rapid descent speed, thereby affecting the subsequent measurement of the sample core thickness. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:
[0037] Figure 1 It is a schematic diagram of the structure of the present invention;
[0038] Figure 2 It is a schematic diagram of the connection structure between the sample core sleeve assembly and the sample core clamping assembly;
[0039] Figure 3 for Figure 2 A schematic diagram of a local structure of the structure shown;
[0040] Figure 4 Schematic diagram of the connection structure of the fixed outer ring, mounting ring, and fixed inner ring Figure 1 ;
[0041] Figure 5 Schematic diagram of the connection structure of the fixed outer ring, mounting ring, and fixed inner ring Figure 2 ;
[0042] Figure 6 Schematic diagram of the connection structure of the fixed outer ring, mounting ring, and fixed inner ring Figure 3 ;
[0043] Figure 7 This is a schematic diagram of the mounting ring structure;
[0044] Figure 8 This is a schematic diagram of the placement ring structure;
[0045] Fig. 9 This is a schematic diagram of the mobile ring installation structure;
[0046] Fig.10 for Fig. 9 A vertical cross-section of the structure;
[0047] Fig.11 This is a schematic diagram of the installation structure of the knock ring;
[0048] Fig.12 It is a schematic diagram of the structure of the knocking component;
[0049] Fig.13 It is a schematic diagram of the lifting component structure.
[0050] Marks and corresponding parts names in the attached drawings:
[0051] 1-lifting assembly, 2-sample core sleeve assembly, 3-sample core clamping assembly, 4-sample core sliding knocking assembly, 5-moving frame, 11-fixed frame, 12-second drive motor, 13-threaded rod, 14-transmission plate, 21-inner sleeve, 22-first drive motor, 23-mounting plate, 24-outer sleeve, 25-connecting plate, 31-fixed outer ring, 32-mounting ring, 33-fixed inner ring, 34-clamping assembly, 35-placing ring, 41-connecting rod, 42-knocking assembly, 43-knocking ring, 44-second groove, 32 1-inner oblique block, 322-top oblique block, 331-mounting groove, 332-first limiting claw, 333-first spring, 340-fourth spring, 341-pushing member, 342-moving ring, 343-extrusion plate, 344-clamping member, 345-side frame, 346-insertion rod, 347-third spring, 348-first groove, 349-reset bottom plate, 351-second limiting claw, 352-baffle, 353-second spring, 421-knocking rod, 422-mounting groove, 423-fifth spring, 424-baffle ring. DETAILED DESCRIPTION
[0052] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.
[0053] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to one of ordinary skill in the art that these specific details are not necessarily employed to practice the present invention. In other embodiments, in order to avoid obscuring the present invention, well-known structures, circuits, materials, or methods are not specifically described.
[0054] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0055] In the description of the present invention, the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “up”, “down”, “vertical”, “horizontal”, “high”, “low”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.
[0056] Example:
[0057] like Figures 1 to 13 As shown, the present invention is a sample core sampling device for road thickness detection, comprising a lifting assembly 1, a sample core sleeve assembly 2, a sample core clamping assembly 3 and a sample core sliding and knocking assembly 4; the lifting assembly 1 is used to drive the sample core sleeve assembly 2 to rise and fall; the sample core sleeve assembly 2 is arranged at the moving part of the lifting assembly 1, and the sample core sleeve assembly 2 is used to drill into the road surface and bring out the sample core; the sample core clamping assembly 3 is arranged at the sample core sleeve assembly 2, and the sample core clamping assembly 3 is used to clamp the sample core brought out of the sample core sleeve assembly 2; the sample core sliding and knocking assembly 4 is arranged at the sample core sleeve assembly 2, and the sample core sliding and knocking assembly 4 is used to knock the sample core sleeve assembly 2 to reduce the adhesion between the sample core sleeve assembly 2 and the sample core. In this embodiment, the sample core is clamped by the sample core clamping assembly 3 to ensure that the sample core can be effectively taken out of the road surface. At the same time, the knocking action of the sample core sliding knocking assembly 4 reduces the adhesion between the sample core and the inner sleeve 21, thereby facilitating the sample core to fall due to its own gravity without being retained in the inner sleeve 21.
[0058] Specifically, the sample core sleeve assembly 2 includes an inner sleeve 21, a first drive motor 22, a mounting plate 23 and an outer sleeve 24, the mounting plate 23 is connected to the lifting component of the lifting assembly 1, the first drive motor 22 is arranged on the mounting plate 23, and the rotating shaft of the first drive motor 22 passes through the mounting plate 23 and is connected to the inner sleeve 21; the first drive motor 22 is used to drive the inner sleeve 21 to rotate clockwise or counterclockwise; when the first drive motor 22 drives the inner sleeve 21 to rotate counterclockwise, the drilling work of the sample core sleeve assembly 2 can be realized in cooperation with the lifting assembly 1 ; When the first drive motor 22 drives the inner sleeve 21 to rotate clockwise to the position where the sample core clamping assembly 3 is in a clamping state, the first drive motor 22 is temporarily stopped. After the sample core sleeve assembly 2 is brought out of the ground by the lifting assembly 1, the first drive motor 22 continues to drive the inner sleeve 21 to rotate clockwise. At this time, the sample core clamping assembly 3 can alternately clamp and release the sample core, and cooperate with the knocking effect of the sample core sliding knocking assembly 4, which can effectively reduce the adhesion between the sample core and the inner sleeve 21 to facilitate the descent of the sample core, and at the same time, it can also prevent the sample core from falling too fast and falling to the ground and causing damage. At the same time, in order to prevent the sample core from adhering to the ground structure, the outer sleeve 24 is arranged at the bottom end of the inner sleeve 21, and the outer sleeve 24 can be used to form an isolation between the inner sleeve 21 and the ground structure, thereby preventing the sample core from adhering to the ground structure.
[0059] The sample core clamping assembly 3 includes a fixed outer ring 31, a mounting ring 32, a fixed inner ring 33 and a clamping assembly 34. The fixed outer ring 31 is fixed to the mounting plate 23 through a connecting plate 25, and the mounting ring 32 is rotatably arranged on the inner wall of the fixed outer ring 31; the fixed inner ring 33 is sleeved on the rotating shaft of the first drive motor 22, and the outer edge of the fixed inner ring 33 cooperates with the mounting ring 32, and drives the mounting ring 32 to rotate in the fixed outer ring 31; the clamping assembly 34 cooperates with the mounting ring 32, and the mounting ring 32 drives the clamping assembly 34 to clamp the sample core or loosen the sample core. In this embodiment, the setting of the fixed outer ring 31 can provide a place for the setting of the mounting ring 32, the fixed inner ring 33 is used to connect the rotating shaft of the first drive motor 22, and can drive the mounting ring 32, and then drive the clamping assembly 34 through the mounting ring 32 to achieve the clamping and loosening effect of the sample core. Specifically, a plurality of inner oblique blocks 321 are evenly arranged on the inner wall of the mounting ring 32, a plurality of mounting grooves 331 are provided on the fixed inner ring 33, and a first limiting claw 332 is rotatably arranged in each of the mounting grooves 331, and the claw head of the first limiting claw 332 is located between two of the inner oblique blocks 321; a first spring 333 is arranged on the first limiting claw 332, and the other end of the first spring 333 is fixed to the inner wall of the mounting groove 331. When the first driving motor 22 drives the fixed inner ring 33 to rotate counterclockwise, the first limiting claw 332 and the inner oblique block 321 will be locked, and the fixed inner ring 33 can drive the mounting ring 32 to rotate synchronously; when the first driving motor 22 drives the fixed inner ring 33 to rotate clockwise, the first limiting claw 332 will slide between the plurality of inner oblique blocks 321, and the fixed inner ring 33 and the mounting ring 32 will rotate relatively, and the mounting ring 32 will be stationary. When the first limiting claw 332 slides between the multiple inner oblique blocks 321, friction will be generated so that the mounting ring 32 has a tendency to rotate. At this time, in order to prevent the mounting ring 32 from rotating, in this embodiment, a plurality of top oblique blocks 322 are evenly arranged on the top surface of the mounting ring 32, a placement ring 35 is fixedly connected to the fixed outer ring 31, and a plurality of second limiting claws 351 are evenly arranged in the placement ring 35 for rotation, and the claw head of the second limiting claw 351 is located between two of the top oblique blocks 322; a baffle plate 352 is arranged on one side of each of the second limiting claws 351, and a second spring 353 is arranged on the second limiting claw 351, and the other end of the second spring 353 is fixed to the baffle plate 352. The second limiting claw 351 is used to lock the top oblique blocks 322, so as to effectively prevent the mounting ring 32 from rotating under the drive of friction, thereby ensuring the relative motion state between the mounting ring 32 and the inner sleeve 21, and further ensuring the clamping and knocking effect.
[0060] The clamping assembly 34 includes a pusher 341, a moving ring 342, a pressing plate 343 and a clamping member 344. The top of the pusher 341 is connected to the mounting ring 32, the bottom of the pusher 341 abuts against the top surface of the moving ring 342, and the pusher 341 pushes the moving ring 342 to move up and down; the top of the pressing plate 343 is fixed to the bottom of the moving ring 342, and the pressing plate 343 presses the clamping member 344, and the clamping member 344 is used to clamp the sample core in the inner sleeve 21. In this embodiment, the pusher 341 is used to push the moving ring 342 to move up and down, and the pressing plate 343 is driven to move through the moving ring 342, and the clamping member 344 is squeezed or relaxed, so that the clamping member 344 can clamp and relax the sample core. More specifically, the clamping assembly 34 also includes a side frame 345, an insertion rod 346 and a third spring 347. The insertion rod 346 is vertically established on the top surface of the inner sleeve 21, and the side frame 345 is fixed to the inner wall of the movable ring 342, and the side frame 345 is slidably inserted into the insertion rod 346; the third spring 347 is sleeved on the insertion rod 346 and is arranged between the top surface of the inner sleeve 21 and the bottom surface of the side frame 345; the side frame 345, the insertion rod 346 and the third spring 347 can effectively realize the automatic resetting of the movable ring 342, so as to alternately realize the clamping and loosening effects of the sample core.
[0061] The top surface of the moving ring 342 is provided with a plurality of first grooves 348 at uniform intervals, and the bottom surface and the top surface of the first groove 348 are connected by a smooth curved surface, and the bottom end of the pushing member 341 can make a circular motion along the first groove 348; when the pushing member 341 slides to the top surface of the first groove 348, the moving ring 342 moves downward, and when the pushing member 341 slides to the bottom surface of the first groove 348, the moving ring 342 moves upward. In this embodiment, by providing a plurality of first grooves 348, when the pushing member 341 makes a circular motion along the moving ring 342 (i.e., when the outer sleeve 21 rotates clockwise and the pushing member 341 is stationary, the moving ring 342 rotates under the pushing member 341), the moving ring 342 is intermittently pressed downward, thereby driving the clamping member 344 to achieve the clamping and loosening effect of the sample core. At the same time, a reset bottom plate 349 is also provided on the clamping member 344, and a fourth spring 340 is provided between the reset bottom plate 349 and the outer wall of the inner sleeve 21; the contact surface between the extrusion plate 343 and the clamping member 344 is set as an inclined structure, and when the extrusion plate 343 moves downward, the clamping member 344 is squeezed inward, and the clamping member 344 is clamped on the surface of the sample core, and when the extrusion plate 343 moves upward, the clamping member 344 contacts and squeezes the sample core.
[0062] In this embodiment, the sample core sliding and knocking assembly 4 specifically includes a connecting rod 41, a knocking assembly 42 and a knocking ring 43. The top end of the connecting rod 41 is connected to the pushing member 341, the knocking assembly 42 is arranged at the bottom end of the connecting rod 41, and the knocking ring 43 is sleeved on the outer surface of the inner sleeve 21; the connection between the sample core sliding and knocking assembly 4 and the sample core clamping assembly 3 is realized through the connecting rod 41, so as to realize the synchronization of the knocking work and the sample core clamping work. In the preferred embodiment of the present invention, the knocking assembly 42 includes a knocking rod 421, a mounting groove 422, a fifth spring 423 and a retaining ring 424, the mounting groove 422 is fixed to the side wall of the connecting rod 41, the knocking rod 421 is movably inserted into the mounting groove 422 and the through hole horizontally opened on the connecting rod 41, the fifth spring 423 is arranged in the mounting groove 422 and sleeved on the knocking rod 421, the retaining ring 424 is fixedly sleeved on one end of the knocking rod 421 close to the knocking head, and the two ends of the fifth spring 423 are respectively abutted against the inner wall of the mounting groove 422 and the retaining ring 424; the outer side surface of the knocking ring 43 is provided with a plurality of uniformly spaced second grooves 44, and the knocking rod 421 is provided with a plurality of uniformly spaced second grooves 44. The knocking head makes a circular motion along the second groove 44. When the knocking head enters the top surface from the bottom surface of the second groove 44 along the smooth curved surface, the fifth spring 423 is compressed. When the knocking head enters the bottom surface from the top surface of the second groove 44, the fifth spring 423 rebounds and knocks on the bottom surface of the second groove 44. Furthermore, in the present embodiment, preferably, the bottom surface of the second groove 44 is aligned with the top surface of the first groove 348 up and down, and the top surface of the second groove 44 is aligned with the bottom surface of the first groove 348 up and down, so as to ensure that when the sample core clamping assembly 3 relaxes the clamping of the sample core, the sample core slides off the knocking assembly 4 and reduces the adhesion between the sample core and the inner sleeve by knocking on the inner sleeve 21, thereby facilitating the falling of the sample core.
[0063] The lifting assembly 1 includes a fixed frame 11, a second drive motor 12, a threaded rod 13 and a transmission plate 14. The fixed frame 11 is fixed to the moving frame 5. The second drive motor 12 is arranged on the top surface of the fixed frame 11, and the drive shaft of the second drive motor 12 passes through the fixed frame 11 and is connected to the threaded rod 13. The transmission plate 14 is threadedly connected to the threaded rod 13; the transmission plate 14 is fixedly connected to the mounting plate 23, and an opening for supplying the sample core sleeve assembly 2 is opened on the bottom plate of the moving frame 5.
[0064] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A core sampling device for road thickness detection, characterized in that: It comprises a lifting component (1), a sample core sleeve component (2), a sample core clamping component (3) and a sample core sliding and knocking component (4); The lifting assembly (1) is used to drive the sample core sleeve assembly (2) to rise and fall; The sample core sleeve assembly (2) is arranged on the moving part of the lifting assembly (1), and the sample core sleeve assembly (2) is used to drill into the road surface and bring out the sample core; The sample core clamping assembly (3) is arranged on the sample core sleeve assembly (2), and the sample core clamping assembly (3) is used to clamp the sample core taken out of the sample core sleeve assembly (2); The sample core sliding and knocking assembly (4) is arranged on the sample core sleeve assembly (2), and the sample core sliding and knocking assembly (4) is used to knock the sample core sleeve assembly (2) to reduce the adhesion between the sample core sleeve assembly (2) and the sample core.
2. A core sampling device for road thickness detection according to claim 1, characterized in that: The sample core sleeve assembly (2) comprises an inner sleeve (21), a first drive motor (22), a mounting plate (23) and an outer sleeve (24), wherein the mounting plate (23) is connected to the lifting component of the lifting assembly (1), the first drive motor (22) is arranged on the mounting plate (23), and the rotating shaft of the first drive motor (22) passes through the mounting plate (23) and is connected to the inner sleeve (21); The first driving motor (22) is used to drive the inner sleeve (21) to rotate clockwise or counterclockwise; The outer sleeve (24) is arranged at the bottom end of the inner sleeve (21).
3. A core sampling device for road thickness detection according to claim 2, characterized in that: The sample core clamping assembly (3) comprises a fixed outer ring (31), a mounting ring (32), a fixed inner ring (33) and a clamping assembly (34); the fixed outer ring (31) is fixed to the mounting plate (23) via a connecting plate (25); and the mounting ring (32) is rotatably arranged on the inner wall of the fixed outer ring (31); The fixed inner ring (33) is sleeved on the rotating shaft of the first driving motor (22), and the outer edge of the fixed inner ring (33) cooperates with the mounting ring (32) and drives the mounting ring (32) to rotate in the fixed outer ring (31); The clamping assembly (34) cooperates with the mounting ring (32), and the mounting ring (32) drives the clamping assembly (34) to clamp the sample core or release the sample core.
4. A core sampling device for road thickness detection according to claim 3, characterized in that: A plurality of inner oblique blocks (321) are evenly arranged on the inner wall of the mounting ring (32), a plurality of mounting grooves (331) are opened on the fixed inner ring (33), and a first limiting claw (332) is rotatably arranged in each of the mounting grooves (331), and the claw head of the first limiting claw (332) is located between two of the inner oblique blocks (321); A first spring (333) is provided on the first limiting claw (332), and the other end of the first spring (333) is fixed to the inner wall of the installation groove (331).
5. A core sampling device for road thickness detection according to claim 4, characterized in that: A plurality of top inclined blocks (322) are evenly arranged on the top surface of the mounting ring (32); a placement ring (35) is fixedly connected to the fixed outer ring (31); a plurality of second limiting claws (351) are evenly rotatably arranged inside the placement ring (35); and the claw heads of the second limiting claws (351) are located between two of the top inclined blocks (322); A baffle (352) is provided on one side of each second limiting claw (351), and a second spring (353) is provided on the second limiting claw (351), and the other end of the second spring (353) is fixed to the baffle (352).
6. A core sampling device for road thickness detection according to claim 5, characterized in that: The clamping assembly (34) comprises a pushing member (341), a moving ring (342), an extrusion plate (343) and a clamping member (344); the top end of the pushing member (341) is connected to the mounting ring (32); the bottom end of the pushing member (341) abuts against the top surface of the moving ring (342); and the pushing member (341) pushes the moving ring (342) to move up and down; The top end of the squeezing plate (343) is fixed to the bottom of the moving ring (342), and the squeezing plate (343) squeezes the clamping member (344), and the clamping member (344) is used to clamp the sample core in the inner sleeve (21).
7. A core sampling device for road thickness detection according to claim 6, characterized in that: The clamping assembly (34) further comprises a side frame (345), an insertion rod (346) and a third spring (347), wherein the insertion rod (346) is vertically arranged on the top surface of the inner sleeve (21), the side frame (345) is fixed to the inner wall of the movable ring (342), and the side frame (345) is slidably inserted into the insertion rod (346); The third spring (347) is sleeved on the insertion rod (346) and is arranged between the top surface of the inner sleeve (21) and the bottom surface of the side frame (345); The top surface of the moving ring (342) is provided with a plurality of first grooves (348) at uniform intervals, and the bottom surface and the top surface of the first grooves (348) are connected by a smooth curved surface, and the bottom end of the pushing member (341) can perform circular motion along the first grooves (348); When the pushing member (341) slides to the top surface of the first groove (348), the moving ring (342) moves downward, and when the pushing member (341) slides to the bottom surface of the first groove (348), the moving ring (342) moves upward.
8. A core sampling device for road thickness detection according to claim 7, characterized in that: The clamping member (344) is also provided with a reset bottom plate (349), and a fourth spring (340) is provided between the reset bottom plate (349) and the outer wall of the inner sleeve (21); The contact surface between the extrusion plate (343) and the clamping member (344) is set as an inclined structure. When the extrusion plate (343) moves downward, the clamping member (344) is squeezed inward, and the clamping member (344) is clamped on the surface of the sample core. When the extrusion plate (343) moves upward, the clamping member (344) contacts and squeezes the sample core.
9. A core sampling device for road thickness detection according to claim 7, characterized in that: The sample core sliding knocking assembly (4) comprises a connecting rod (41), a knocking assembly (42) and a knocking ring (43), the top end of the connecting rod (41) is connected to the pushing member (341), the knocking assembly (42) is arranged at the bottom end of the connecting rod (41), and the knocking ring (43) is sleeved on the outer surface of the inner sleeve (21); The knocking assembly (42) comprises a knocking rod (421), a mounting groove (422), a fifth spring (423) and a retaining ring (424); the mounting groove (422) is fixed to the side wall of the connecting rod (41); the knocking rod (421) is movably inserted into the mounting groove (422) and a through hole horizontally opened on the connecting rod (41); the fifth spring (423) is arranged in the mounting groove (422) and sleeved on the knocking rod (421); the retaining ring (424) is fixedly sleeved on one end of the knocking rod (421) close to the knocking head, and two ends of the fifth spring (423) are respectively in contact with the inner wall of the mounting groove (422) and the retaining ring (424); The outer side surface of the knocking ring (43) is provided with a plurality of second grooves (44) with uniform and equal spacing. The knocking head of the knocking rod (421) performs a circular motion along the second groove (44). When the knocking head enters the top surface from the bottom surface of the second groove (44) along the smooth curved surface, the fifth spring (423) is compressed. When the knocking head enters the bottom surface from the top surface of the second groove (44), the fifth spring (423) rebounds and knocks on the bottom surface of the second groove (44). The bottom surface of the second groove (44) is aligned with the top surface of the first groove (348) in the vertical direction, and the top surface of the second groove (44) is aligned with the bottom surface of the first groove (348) in the vertical direction.
10. A core sampling device for road thickness detection according to claim 2, characterized in that: The lifting assembly (1) comprises a fixed frame (11), a second drive motor (12), a threaded rod (13) and a transmission plate (14); the fixed frame (11) is fixed to the moving frame (5); the second drive motor (12) is arranged on the top surface of the fixed frame (11); a drive shaft of the second drive motor (12) passes through the fixed frame (11) and is connected to the threaded rod (13); and the transmission plate (14) is threadedly connected to the threaded rod (13); The transmission plate (14) is fixedly connected to the mounting plate (23), and an opening for supplying the sample core sleeve assembly (2) is provided on the bottom plate of the moving frame (5).
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Material taking device for rock mechanics experiment
CN120685364A