A device for taking samples for detecting compactness in highway test

Abstract

This invention relates to the field of highway engineering technology, specifically to a highway testing and compaction degree sampling device, comprising: a hydraulic cylinder with a groove fixedly connected to its output end, and a rotary motor disposed inside the groove; a sampling tube, the end of which is connected to the output end of the rotary motor, and a limit rod disposed inside the sampling tube; and a movable plate disposed outside the sampling tube, one end of which is connected to a push block, and the other end of which is connected to a turntable via a connecting rope. The beneficial effects are: this highway testing and compaction degree sampling device, through the cooperation between the connecting rope and the movable plate, allows the bottom of the movable plate to move downwards by pushing the movable shaft when the connecting rope pulls the top of the movable plate, thereby causing the push block to move downwards. This allows the push block to quickly push the sample inside the sampling tube, causing the sample to quickly detach from the sampling tube, thus accelerating the unloading efficiency of the device. Furthermore, the device is simple to operate, providing convenience for operators.

Description

Technical Field

[0001] This invention relates to the field of highway engineering technology, specifically to a highway testing and compaction sampling device. Background Technology

[0002] Highway compaction degree refers to the ratio of the dry density of compacted soil or other road construction materials to the standard maximum dry density. Highway compaction degree is one of the key indicators for highway pavement construction quality inspection. It characterizes the density status after on-site compaction. The higher the compaction degree, the greater the density and the better the overall performance of the material. Therefore, it is necessary to test the compaction degree of the highway after construction to check whether the highway construction has reached the required standard.

[0003] When it is necessary to take samples for testing on highways, a highway testing and compaction sampling device is required. However, the existing sampling devices have poor unloading effect and are inconvenient to unload, which brings inconvenience to operators. Summary of the Invention

[0004] The purpose of this invention is to provide a material sampling device for testing the compaction degree of highway tests, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a highway testing and compaction degree sampling device, the highway testing and compaction degree sampling device comprising:

[0006] A hydraulic cylinder, the output end of which is fixedly connected to a groove, and a rotary motor is installed inside the groove;

[0007] The material receiving tube is connected at one end to the output end of the rotary motor, and a limit rod is installed inside the material receiving tube;

[0008] The movable plate is located on the outside of the material receiving tube. One end of the movable plate is connected to the push block, and the other end of the movable plate away from the push block is connected to the turntable via a connecting rope.

[0009] Preferably, the highway testing and compaction sampling device is characterized in that: the highway testing and compaction sampling device comprises:

[0010] A hydraulic cylinder, the output end of which is fixedly connected to a groove, and a rotary motor is installed inside the groove;

[0011] The material receiving tube is connected at one end to the output end of the rotary motor, and a limit rod is installed inside the material receiving tube;

[0012] The movable plate is located on the outside of the material receiving tube. One end of the movable plate is connected to the push block, and the other end of the movable plate away from the push block is connected to the turntable via a connecting rope.

[0013] Preferably, a push handle is fixedly arranged on one side wall of the upper end surface of the rack. The cross-section of the push handle is in a "C" shape structure. And rollers are fixedly arranged on the lower surface of the rack. There are four groups of rollers, and the four groups of rollers are evenly and symmetrically distributed around the bottom of the rack. The rack is moved through the cooperation of the push handle and the four groups of rollers.

[0014] Preferably, the output end of the hydraulic cylinder penetrates through the cross plate and is fixedly connected with the fixed column. A groove is opened at the central position of the end of the fixed column far away from the hydraulic cylinder. The groove is in a circular structure. And a rotary motor is fixedly arranged inside the groove. The size of the rotary motor matches the internal size of the groove. The output end of the rotary motor is fixedly connected with a material taking pipe.

[0015] Preferably, the size of the material taking pipe matches the internal size of the groove. The material taking pipe is rotationally arranged inside the fixed column through the rotary motor. And teeth are fixedly arranged on the lower end surface of the material taking pipe. There are multiple groups of teeth, and the multiple groups of teeth are distributed in a circumferential state with the material taking pipe as the center.

[0016] Preferably, a sunken hole is opened at the central position inside the material taking pipe. A motor is fixedly arranged on the inner top wall of the sunken hole. The output end of the motor is fixedly connected with a turntable. The cross-section of the turntable is in a "H" shape structure. The turntable is rotationally arranged inside the sunken hole through the motor. And a protective housing is arranged on the outer surface of one end of the turntable close to the motor. The protective housing is in a horn shape structure. A connecting rope is wound inside the turntable. There are two groups of connecting ropes, and both groups of connecting ropes penetrate through the side wall of the material taking pipe and are connected with one end of a movable plate.

[0017] Preferably, there are two groups of movable plates. The two groups of movable plates are symmetrically distributed with the material taking pipe as the center. And a让位槽 (releasing groove) is opened on the side wall of each of the two groups of movable plates. A central shaft is slidably arranged inside the releasing groove. The size of the central shaft matches the internal size of the movable plate. And a first spring is arranged inside the movable plate. The first spring is fixedly arranged between the inner wall of the movable plate and the outer surface of the central shaft. The central shaft is elastically arranged inside the movable plate through the first spring.

[0018] Preferably, mounting plates are connected to both ends of the central shaft. One end of the mounting plate far away from the central shaft is fixedly connected to the outer surface of the material taking pipe. And a movable shaft is rotationally connected to one end of the movable plate far away from the connecting rope. Both ends of the movable shaft are respectively connected to the two side walls inside the cavity. The cavity is opened at the central symmetric position on one side wall of the support block. The movable plate is hinged to the support block through the movable shaft.

[0019] Preferably, a receiving groove is provided below the countersunk hole. The receiving groove is located inside the material receiving tube. A limiting rod is provided inside the receiving groove. The size of the limiting rod matches the size of the receiving groove. A second spring is fixedly connected to one end of the limiting rod. The end of the second spring away from the limiting rod is fixedly connected to the top of the receiving groove. The limiting rod is elastically set inside the receiving groove by the second spring. A push block is fixedly provided at the center of the side wall of the limiting rod away from the second spring. A top block is fixedly provided at the center of the side wall of the push block away from the limiting rod.

[0020] Preferably, the inner sidewalls of the storage slot are provided with sliding grooves, and support blocks are slidably arranged inside the two sets of sliding grooves. The size of the support blocks matches the inner size of the sliding grooves, and the two sets of support blocks are fixedly connected to the sidewalls of the push block through the sliding grooves. The movable plate is fixedly connected to the push block through the support blocks.

[0021] Preferably, the turntable has guide grooves at the center of the upper and lower side walls. The guide grooves are annular in structure, and guide blocks are slidably arranged inside both sets of guide grooves. The size of the guide blocks matches the size of the guide grooves. A reciprocating screw is rotatably arranged between the two sets of guide blocks. The size of the reciprocating screw matches the distance between the two sets of guide blocks. A collar is screwed onto the outer surface of the reciprocating screw. The size of the collar matches the size of the reciprocating screw. A guide ring is fixedly arranged on one side of the collar.

[0022] Preferably, a connecting rod is fixedly provided on one side of the collar. The connecting rod has an "L" shape and the end of the connecting rod away from the collar is fixedly connected to the lower end face of the motor. The collar is fixed by the connecting rod. A first gear is fixedly provided on the outer surface of the top end of the reciprocating screw. The size of the first gear matches the size of the reciprocating screw, and the first gear meshes with the second gear. The second gear is fixedly provided on the inner top end of the turntable.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] This invention proposes a sampling device for testing the compaction degree of highways. Through the cooperation between a connecting rope and a movable plate, when the connecting rope pulls the top of the movable plate, the bottom of the movable plate will move a pusher block downwards by pushing a movable shaft. This allows the pusher block to quickly push the sample inside the sampling tube, causing the sample to quickly detach from the sampling tube, thus accelerating the unloading efficiency of the device. Furthermore, the device is simple to operate, providing convenience for operators. The rotation of the turntable drives the reciprocating screw to rotate, which in turn drives the collar to slide up and down, thereby guiding the connecting rope to wind itself through the guide ring and preventing the connecting rope from becoming entangled. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a cross-sectional view of the fixed column and material receiving tube structure of the present invention;

[0027] Figure 3 This is an exploded view of the internal structure of the material intake tube of the present invention;

[0028] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0029] Figure 5 This is a schematic diagram showing the connection between the motor and the turntable structure of the present invention;

[0030] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point B;

[0031] Figure 7 This is a schematic diagram of the connection between the turntable and the reciprocating lead screw structure of the present invention.

[0032] In the diagram: 1. Frame; 2. Horizontal plate; 3. Hydraulic cylinder; 4. Fixed column; 5. Slide groove; 6. Material handling pipe; 7. Movable plate; 8. Turntable; 9. Motor; 10. Rotary motor; 11. Groove; 12. First spring; 13. Central shaft; 14. Mounting plate; 15. Top block; 16. Push block; 17. Limiting rod; 18. Second spring; 19. Connecting rope; 20. Support block; 21. Movable shaft; 22. Cavity; 23. Push handle; 24. Roller; 25. Connecting rod; 26. Gear; 27. Countersunk hole; 28. Storage groove; 29. ​​Collar; 30. Guide ring; 31. First gear; 32. Second gear; 33. Guide groove; 34. Guide block; 35. Reciprocating screw. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1 to 5 This invention provides a technical solution: a highway testing and compaction degree sampling device, which includes:

[0035] Hydraulic cylinder 3 has a groove 11 fixedly connected to its output end. A rotary motor 10 is installed inside the groove 11. Hydraulic cylinder 3 is fixedly positioned symmetrically at the center of horizontal plate 2. Horizontal plate 2 is positioned at the center of the upper end face of frame 1, and its size matches that of frame 1. Both ends of horizontal plate 2 are fixedly connected to the two sides of frame 1. Hydraulic cylinder 3 is fixedly connected to frame 1 via horizontal plate 2. Frame 1 has a hollow rectangular structure. The output end of hydraulic cylinder 3 is located inside frame 1. A push handle 23 is fixedly installed on one side wall of the upper end face of frame 1. The cross-section of push handle 23 is "U" shaped. The frame 1 has a structure in which rollers 24 are fixedly installed on its lower surface. There are four sets of rollers 24, which are evenly and symmetrically distributed around the bottom of the frame 1. The frame 1 moves by the cooperation of the push handle 23 and the four sets of rollers 24. The output end of the hydraulic cylinder 3 passes through the horizontal plate 2 and is fixedly connected to the fixed column 4. A groove 11 is provided at the center of the end of the fixed column 4 away from the hydraulic cylinder 3. The groove 11 is circular and a rotary motor 10 is fixedly installed inside the groove 11. The size of the rotary motor 10 matches the size of the inside of the groove 11. The output end of the rotary motor 10 is fixedly connected to the material pick-up pipe 6.

[0036] The material taking tube 6 is connected to the output end of the rotary motor 10 at its end. The material taking tube 6 is equipped with a limit rod 17 inside. The size of the material taking tube 6 matches the size of the groove 11 inside. The material taking tube 6 is rotated inside the fixed column 4 by the rotary motor 10. The lower end face of the material taking tube 6 is fixedly provided with a tooth 26. There are multiple sets of tooth 26. The multiple sets of tooth 26 are distributed in a circumferential state with the material taking tube 6 as the center. A countersunk hole 27 is opened at the center of the material taking tube 6. A motor 9 is fixedly installed on the top wall of the countersunk hole 27. The output end of the motor 9 is fixedly connected to a turntable 8. The cross-section of the turntable 8 is an "I" shaped structure. The turntable 8 is rotated inside the countersunk hole 27 by the motor 9. A connecting rope 19 is wound inside the turntable 8. There are two sets of connecting ropes 19. Both sets of connecting ropes 19 pass through the side wall of the material taking tube 6 and are connected to one end of the movable plate 7.

[0037] Movable plate 7 is located outside the material receiving tube 6. One end of movable plate 7 is connected to push block 16, and the end of movable plate 7 away from push block 16 is connected to turntable 8 via connecting rope 19. Two sets of movable plates 7 are provided, symmetrically distributed around the material receiving tube 6. Each set of movable plates 7 has a clearance groove on its side wall, and a central shaft 13 is slidably installed inside the clearance groove. The size of the central shaft 13 matches the internal size of the movable plate 7. A first spring 12 is installed inside the movable plate 7 and is fixedly mounted on... Between the inner wall of the movable plate 7 and the outer surface of the central shaft 13, the central shaft 13 is elastically set inside the movable plate 7 by a first spring 12. Two sets of movable plates 7 are provided, symmetrically distributed around the material receiving pipe 6. Each set of movable plates 7 has a clearance groove on its side wall, inside which the central shaft 13 slides. The size of the central shaft 13 matches the internal size of the movable plate 7. A first spring 12 is fixedly installed inside the movable plate 7 and on both the inner wall of the movable plate 7 and the outer surface of the central shaft 13. Between them, the central shaft 13 is elastically set inside the movable plate 7 by the first spring 12. A receiving groove 28 is provided below the countersunk hole 27. The receiving groove 28 is located inside the material receiving tube 6. A limit rod 17 is provided inside the receiving groove 28. The size of the limit rod 17 matches the internal size of the receiving groove 28, and a second spring 18 is fixedly connected to one end of the limit rod 17. The end of the second spring 18 away from the limit rod 17 is fixedly connected to the top of the receiving groove 28. The limit rod 17 is elastically set inside the receiving groove 28 by the second spring 18. Inside the 8, a push block 16 is fixedly installed at the center of the side wall away from the second spring 18 of the limiting rod 17. A top block 15 is fixedly installed at the center of the side wall away from the limiting rod 17 of the push block 16. Slide grooves 5 are opened on both sides of the inside of the storage groove 28. Support blocks 20 are slidably installed inside the two sets of slide grooves 5. The size of the support blocks 20 matches the size of the inside of the slide grooves 5. The two sets of support blocks 20 are fixedly connected to the side wall of the push block 16 through the slide grooves 5. The movable plate 7 is fixedly connected to the push block 16 through the support blocks 20.

[0038] The turntable 8 has guide grooves 33 at the center of its upper and lower sidewalls. The guide grooves 33 are annular in structure, and guide blocks 34 are slidably disposed inside each set of guide grooves 33. The size of the guide blocks 34 matches the internal size of the guide grooves 33. A reciprocating screw 35 is rotatably disposed between the two sets of guide blocks 34. The size of the reciprocating screw 35 matches the distance between the two sets of guide blocks 34. A collar 29 is screwed onto the outer surface of the reciprocating screw 35. The size of the collar 29 matches the size of the reciprocating screw 35. A guide ring 30 is fixedly installed on one side of the motor 9, and a connecting rod 25 is fixedly installed on one side of the collar 29. The connecting rod 25 has an "L" shape, and the end of the connecting rod 25 away from the collar 29 is fixedly connected to the lower end face of the motor 9. The collar 29 is fixed by the connecting rod 25. A first gear 31 is fixedly installed on the outer surface of the top end of the reciprocating screw 35. The size of the first gear 31 matches the size of the reciprocating screw 35, and the first gear 31 meshes with the second gear 32. The second gear 32 is fixedly installed on the inner top end of the turntable 8.

[0039] In use, the rotary motor 10 drives the sampling tube 6 to rotate, the hydraulic cylinder 3 drives the fixed column 4 to move downward, the toothed 26 cuts and samples the road. When the road sample is taken out, the motor 9 drives the turntable 8 to rotate. The rotation of the turntable 8 will wind the two sets of connecting ropes 19. Through the cooperation between the connecting ropes 19 and the movable plate 7, when the connecting ropes 19 pull the top of the movable plate 7, the bottom of the movable plate 7 will drive the push block 16 to move downward by pushing the movable shaft 21, so that the push block 16 can quickly push the sample in the sampling tube 6 and make the sample quickly detach from the sampling tube 6.

[0040] When the motor 9 drives the turntable 8 to rotate, the turntable 8 drives the reciprocating screw 35 to rotate through the cooperation of the second gear 32 and the first gear 31. During the rotation of the reciprocating screw 35, the collar 29 moves back and forth on the surface of the reciprocating screw 35 due to the limitation of the connecting rod 25. During the reciprocating movement of the collar 29, the connecting rope 19 set inside the guide ring 30 will reciprocate and wrap around the inside of the turntable 8.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A material sampling device for testing the compaction degree of highway construction, characterized in that: The highway test compaction sampling device includes: A hydraulic cylinder (3) is fixedly connected to a groove (11) at its output end, and a rotary motor (10) is installed inside the groove (11). The end of the material taking tube (6) is connected to the output end of the rotary motor (10), and a limit rod (17) is provided inside the material taking tube (6). Movable plate (7) is set on the outside of the material pick-up tube (6). One end of the movable plate (7) is connected to the push block (16), and the other end of the movable plate (7) away from the push block (16) is connected to the turntable (8) through the connecting rope (19). The material taking tube (6) has a countersunk hole (27) at its center. A motor (9) is fixedly installed on the top wall of the countersunk hole (27). A turntable (8) is fixedly connected to the output end of the motor (9). The turntable (8) has an "I" shaped cross section. The turntable (8) is rotated inside the countersunk hole (27) by the motor (9). A connecting rope (19) is wound inside the turntable (8). There are two sets of connecting ropes (19). Both sets of connecting ropes (19) pass through the side wall of the material taking tube (6) and are connected to one end of the movable plate (7). The movable plate (7) is provided in two sets, which are symmetrically distributed around the material pick-up pipe (6). The side walls of both sets of movable plates (7) are provided with clearance grooves, and a central shaft (13) is slidably arranged inside the clearance grooves. The size of the central shaft (13) matches the internal size of the movable plate (7). A first spring (12) is provided inside the movable plate (7). The first spring (12) is fixedly arranged between the inner wall of the movable plate (7) and the outer surface of the central shaft (13). The central shaft (13) is elastically arranged on the movable plate by the first spring (12). Inside (7), both ends of the central shaft (13) are connected to mounting plates (14). The end of the mounting plate (14) away from the central shaft (13) is fixedly connected to the outer surface of the material taking tube (6). The end of the movable plate (7) away from the connecting rope (19) is rotatably connected to a movable shaft (21). The two ends of the movable shaft (21) are respectively connected to the two side walls inside the cavity (22). The cavity (22) is opened at the center symmetrical position of one side wall of the support block (20). The movable plate (7) is hinged to the support block (20) through the movable shaft (21).

2. The material sampling device for testing compaction degree in highway testing according to claim 1, characterized in that: The hydraulic cylinder (3) is fixedly installed at the center symmetrical position of the horizontal plate (2). The horizontal plate (2) is installed at the center of the upper end face of the frame (1). The size of the horizontal plate (2) matches the size of the frame (1). The two ends of the horizontal plate (2) are fixedly connected to the two sides of the frame (1). The hydraulic cylinder (3) is fixedly connected to the frame (1) through the horizontal plate (2). The frame (1) has a hollow rectangular structure. The output end of the hydraulic cylinder (3) is located inside the frame (1).

3. The material sampling device for testing compaction degree in highway testing according to claim 2, characterized in that: On one side wall of the upper end surface of the frame (1), a push handle (23) is fixedly arranged. The cross-section of the push handle (23) is in a "U" shape structure. And on the lower surface of the frame (1), rollers (24) are fixedly arranged. There are four groups of rollers (24), and the four groups of rollers (24) are evenly and symmetrically distributed around the bottom of the frame (1). The frame (1) moves through the cooperation of the push handle (23) and the four groups of rollers (24).

4. The material sampling device for testing compaction degree in highway testing according to claim 3, characterized in that: The output end of the hydraulic cylinder (3) penetrates through the cross plate (2) and is fixedly connected to the fixed column (4). At the center position of the end of the fixed column (4) far away from the hydraulic cylinder (3), a groove (11) is opened. The groove (11) is in a circular structure. And inside the groove (11), a rotating motor (10) is fixedly arranged. The size of the rotating motor (10) matches the internal size of the groove (11). The output end of the rotating motor (10) is fixedly connected to a material taking pipe (6).

5. The material sampling device for testing compaction degree in highway testing according to claim 4, characterized in that: The size of the material taking pipe (6) matches the internal size of the groove (11). The material taking pipe (6) is rotationally arranged inside the fixed column (4) through the rotating motor (10). And on the lower end surface of the material taking pipe (6), cutting teeth (26) are fixedly arranged. There are multiple groups of cutting teeth (26), and the multiple groups of cutting teeth (26) are distributed in a circumferential state with the material taking pipe (6) as the center of the circle.

6. The material sampling device for testing compaction degree in highway testing according to claim 5, characterized in that: Below the counter bore (27), a storage groove (28) is opened. The storage groove (28) is located inside the material taking pipe (6). Inside the storage groove (28), a limiting rod (17) is arranged. The size of the limiting rod (17) matches the internal size of the storage groove (28). And at one end of the limiting rod (17), a second spring (18) is fixedly connected. The end of the second spring (18) far away from the limiting rod (17) is fixedly connected to the top of the storage groove (28). The limiting rod (17) is elastically arranged inside the storage groove (28) through the second spring (18). At the center position of the side wall of the limiting rod (17) far away from the second spring (18), a push block (16) is fixedly arranged. At the center position of the side wall of the push block (16) far away from the limiting rod (17), a top block (15) is fixedly arranged. On both side walls inside the storage groove (28), sliding grooves (5) are opened. Inside the two sliding grooves (5), support blocks (20) are slidably arranged. The size of the support blocks (20) matches the internal size of the sliding grooves (5). And the two support blocks (20) are respectively fixedly connected to the side wall of the push block (16) through the sliding grooves (5). The movable plate (7) is fixedly connected to the push block (16) through the support blocks (20).

7. The material sampling device for testing compaction degree in highway testing according to claim 6, characterized in that: The turntable (8) has guide grooves (33) at the center of the upper and lower side walls. The guide grooves (33) are annular structures. Guide blocks (34) are slidably arranged inside the two sets of guide grooves (33). The size of the guide blocks (34) matches the size of the guide grooves (33). A reciprocating screw (35) is rotatably arranged between the two sets of guide blocks (34). The size of the reciprocating screw (35) matches the distance between the two sets of guide blocks (34). A collar (29) is screwed onto the outer surface of the reciprocating screw (35). The size of the collar (29) matches the size of the reciprocating screw (35). A guide ring (30) is fixedly arranged on one side of the collar (29).

8. The material sampling device for testing compaction degree in highway testing according to claim 7, characterized in that: A connecting rod (25) is fixedly provided on one side of the collar (29). The connecting rod (25) has an "L" shape structure, and the end of the connecting rod (25) away from the collar (29) is fixedly connected to the lower end face of the motor (9). The collar (29) is fixed by the connecting rod (25), and a first gear (31) is fixedly provided on the outer surface of the top end of the reciprocating screw (35). The size of the first gear (31) matches the size of the reciprocating screw (35), and the first gear (31) meshes with the second gear (32). The second gear (32) is fixedly provided on the inner top end of the turntable (8).

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