Rock drilling and sampling device for road construction

By designing the matching structure between the clamping plate and the side support plate in the rock drilling sampling device for road construction, combining the guide rod and spring, the problem of unstable clamping of the clamping member to the core sample is solved, and a more stable core sample lift is achieved and convenient operation.

CN222258797UActive Publication Date: 2024-12-27SHANXI JIACHENG HIGHWAY SURVEY & DESIGN CO LTD
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Patent Information

Application Number
CN202420832397.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-22
Publication Date
2024-12-27
Estimated Expiration
2034-04-22

AI Technical Summary

Technical Problem

In the existing road construction rock drilling sampling device, the clamping parts are unstable to the core sample, resulting in the problem that the core sample may slide out and fall during lifting.

Method used

A device including a moving frame body and a sampling drill barrel is designed. A clamping edge and a clamping groove are provided between the clamping plate and the outer cylinder. The side support plate is cooperated with the clamping plate, and the clamping plate can be topped toward the core sample surface. Combining the guide rod and spring ensures that the clamp plate slides stably and returns to prevent core samples from falling.

Benefits of technology

A more stable core sample clamping is achieved, preventing core sample from falling and improving the convenience of the sampling device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of engineering sampling equipment, in particular to a rock drilling and sampling device for road construction, which comprises a movable frame body and a sampling drill barrel, the sampling drill barrel comprises an inner barrel and an outer barrel, the inner barrel is fixedly connected in the outer barrel, a plurality of clamping plates are arranged on the side wall of the inner barrel, and the top ends of the clamping plates are slidably connected with the top wall of the outer barrel along the radial direction. A plurality of side supporting plates are arranged in a gap between the inner cylinder and the outer cylinder in the circumferential direction, receding cavities are reserved between the bottom ends of the side supporting plates and the bottom of the gap between the inner cylinder and the outer cylinder, the top ends of the side supporting plates penetrate through the top wall of the outer cylinder, and clamping grooves are formed in the top ends and the bottom ends of the inner side faces of the side supporting plates correspondingly. And the clamping edges are clamped in the clamping grooves. The rock drilling and sampling device for highway construction solves the problem that when an existing rock drilling and sampling device for highway construction is used for drilling a core sample, due to the fact that a clamping piece cannot stably clamp the core sample, the core sample slides out of a rock drilling and sampling barrel and falls into a sampling hole in the process of lifting the rock drilling and sampling barrel from the sampling hole.
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Description

Technical Field

[0001] The utility model relates to the technical field of engineering sampling equipment, in particular to a rock drilling sampling device for road construction. Background Art

[0002] During the road construction process, it is necessary to carry out surrounding rock quality evaluation and surrounding rock classification. Among them, obtaining relevant physical and mechanical parameters is a necessary condition for carrying out surrounding rock quality evaluation and classification. At this time, it is generally necessary to take rock samples from the rock mass and further carry out relevant indoor experiments to accurately obtain the relevant physical and mechanical parameters of the rock mass, such as: rock compressive strength, rock tensile strength, etc. In addition, sampling is also required for the constructed highway. Through the study of samples, the physical and mechanical properties of structural layers such as road pavement and roadbed can be analyzed to understand their quality, so as to carry out quality control and quality improvement.

[0003] In the prior art, for example, a Chinese patent with publication number CN117702598A proposes a highway construction rock drilling sampling device, which drives a circular ring member to move downward through a lifting driver, thereby driving a plurality of lifting drive rods to move downward, so that the inclined end at the lower end of the lifting drive rod is connected to the inclined surface of the protrusion, thereby pushing the protrusion and the clamping member to rotate toward the center direction of the rock drilling sampling barrel with the clamping member mounting axis as the center, so as to clamp the sample inside the rock drilling sampling barrel and prevent it from falling off.

[0004] In the above technical solution, the clamping member rotates with the mounting axis of the clamping member as the center, and the mounting axis is located at the lower end of the clamping member. Therefore, when clamping the core sample, the clamping member is in an inclined state, and the upper end of the clamping member can clamp the core sample, while the clamping member as a whole may not completely contact the surface of the core sample and clamp the core sample. In this way, the clamping force of the clamping member on the core sample gradually decreases from top to bottom, resulting in unstable clamping of the core sample by the clamping member. In the process of lifting the rock drilling sampling barrel from the sampling hole, the core sample may still slip out of the rock drilling sampling barrel and fall into the sampling hole. Utility Model Content

[0005] The utility model provides a road construction rock drilling sampling device, which solves the problem that when the existing highway construction rock drilling sampling device is used to drill core samples, the core sample slips out of the rock drilling sampling tube and falls into the sampling hole during the process of lifting the rock drilling sampling tube from the sampling hole due to the unstable clamping of the core sample by the clamping part.

[0006] To achieve the above-mentioned purpose, the utility model proposes a road construction rock drilling sampling device, comprising a mobile frame and a sampling drill barrel, wherein a driver is fixedly installed in the mobile frame, the sampling drill barrel is fixedly connected to the output end of the driver, a lifter is provided on the top of the mobile frame, the output end of the lifter is fixed to the top of the housing of the driver, the sampling drill barrel comprises an inner barrel and an outer barrel, the inner barrel is fixedly connected to the outer barrel, and a gap is left between the inner barrel and the outer barrel;

[0007] A plurality of clamping plates are provided on the side wall of the inner cylinder, the top ends of the clamping plates are radially slidably connected to the top wall of the outer cylinder, and the top and bottom ends of the outer side surfaces of the clamping plates are respectively provided with clamping edges, and the cross section of the clamping edges is semicircular;

[0008] A plurality of side support plates are arranged in the circumferential direction in the gap between the inner tube and the outer tube, and the side support plates slide vertically in the gap between the inner tube and the outer tube;

[0009] A clearance cavity is left at the bottom of the gap between the bottom end of the side support plate and the inner tube and the outer tube, the top end of the side support plate passes through the top wall of the outer tube, and the side support plate slides relatively with the top wall of the outer tube;

[0010] The side support plate is arranged corresponding to the clamping plate, and the top and bottom ends of the inner side of the side support plate are respectively provided with a card slot, the bottom surface of the card slot is semicircular, the card slot corresponds to the position of the card edge, and the card edge is stuck in the card slot.

[0011] Preferably, the movable frame includes a movable bottom frame, side support walls and a top frame, wherein two side support walls are provided and are respectively fixedly connected to the left and right sides of the upper surface of the movable bottom frame, and the top frame is fixedly connected to the top ends of the two side support walls.

[0012] Preferably, a fixed beam is fixedly connected inside the top frame, and the lifter is fixedly mounted on the fixed beam.

[0013] Preferably, a lifting beam is provided between the two side support walls for vertical sliding, and the driver is fixedly mounted on the lifting beam;

[0014] A connecting frame is provided on the top surface of the lifting beam, and the output end of the lifter is fixedly connected to the connecting frame.

[0015] Preferably, a plurality of sliding holes for making way are provided on the top wall of the outer cylinder, the positions of the sliding holes for making way correspond to the positions of the clamping plates, and the top ends of the side support plates slide vertically in the sliding holes for making way;

[0016] Sliding grooves are arranged on the front and rear hole walls of the yield sliding hole.

[0017] Preferably, sliding blocks are provided on the front and rear side walls at the top end of the clamping plate, and the sliding blocks slide in the sliding grooves.

[0018] Preferably, a guide hole is provided in the top wall of the outer cylinder, the axial direction of the guide hole is parallel to the radial direction of the top wall of the outer cylinder, and the guide hole is connected to the yield sliding hole.

[0019] Preferably, a guide rod is fixedly connected to the top end of the inner side wall of the clamping plate, and the guide rod slides in the guide hole;

[0020] A spring is arranged in the yielding sliding hole, and the spring is sleeved outside the guide rod.

[0021] Preferably, the top ends of the plurality of side support plates are fixedly connected with a pressing plate;

[0022] A sliding sleeve is provided on the upper surface of the pressing plate, and a vertical limiting groove is provided on the inner side wall of the sliding sleeve.

[0023] Preferably, a limiting edge is provided on the peripheral side surface of the output shaft of the driver;

[0024] The output shaft sleeve of the driver is arranged in the sliding sleeve, and the limiting edge is inserted into the limiting groove. The output shaft of the driver passes through the pressing plate and is fixedly connected to the top wall of the outer cylinder.

[0025] The utility model has the following beneficial effects:

[0026] 1. Since the upper and lower ends of the outer wall of the clamping plate are provided with clamping edges, and they cooperate with the clamping grooves at the upper and lower ends of the inner wall of the side support plate, when the side support plate is pressed down, the clamping edges slide out of the clamping grooves and abut against the inner wall of the side support plate. The side support plate pushes the clamping plate toward the core sample, so that the upper and lower parts of the clamping plate can be close to the surface of the core sample, so that the core sample can be clamped more stably to prevent the core sample from falling;

[0027] 2. The guide rod can prevent the spring from bending. The guide rod cooperates with the guide hole to further stabilize the clamping plate, so that the clamping plate can slide stably. In addition, the spring can push the clamping plate outward to facilitate the return of the clamping plate.

[0028] 3. The pressing plate can drive multiple side support plates to move up and down at the same time, and can make multiple clamping plates move at the same time, thereby improving the convenience of the sampling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a top view structural diagram of a road construction rock drilling sampling device according to the utility model;

[0030] Figure 2 This is a bottom perspective structural diagram of a road construction rock drilling sampling device according to the utility model;

[0031] Figure 3 This is a schematic structural diagram of an outer cylinder in a road construction rock drilling sampling device according to the utility model;

[0032] Figure 4 This is a structural schematic diagram of an inner cylinder and a clamping plate in a road construction rock drilling sampling device according to the utility model;

[0033] Figure 5 for Figure 4 A in the enlarged view;

[0034] Figure 6 It is a structural schematic diagram of a pressing frame in a road construction rock drilling sampling device according to the utility model;

[0035] Figure 7 This is a schematic diagram of the connection between a sampling drill tube and a driver in a road construction rock drilling sampling device according to the utility model;

[0036] Figure 8 for Figure 7 Enlarged view of point B in .

[0037] In the figure, 1, movable frame; 11, movable bottom frame; 12, side support wall; 13, top frame; 14, fixed beam; 15, lifting beam; 16, connecting frame; 2, sampling drill tube; 21, outer tube; 211, give-way sliding hole; 212, slide groove; 213, guide hole; 22, inner tube; 23, clamping plate; 231, clamping edge; 232, slider; 24, side support plate; 241, clamping groove; 242, pressing plate; 243, sliding sleeve; 2431, limiting groove; 25, guide rod; 26, spring; 27, give-way cavity; 3, lifter; 4, driver; 41, limiting edge. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0039] The utility model provides a road construction rock drilling sampling device, such as Figure 1 and Figure 2 As shown, it includes a mobile frame 1 and a sampling drill tube 2. A driver 4 is fixedly installed in the mobile frame 1. The driver 4 adopts a motor. The sampling drill tube 2 is fixedly connected to the output end of the driver 4. A lifter 3 is provided on the top of the mobile frame 1. The lifter 3 adopts a hydraulic cylinder or a pneumatic cylinder. The output end of the lifter 3 is fixed to the top of the casing of the driver 4. Figure 3 , Figure 4 and Figure 7As shown, the sampling drill tube 2 includes an inner tube 22 and an outer tube 21. The inner tube 22 is fixedly connected to the outer tube 21, and a gap is left between the inner tube 22 and the outer tube 21. A plurality of clamping plates 23 are provided on the side wall of the inner tube 22. The top end of the clamping plate 23 is radially slidably connected to the top wall of the outer tube 21. Figure 3 and Figure 4 As shown, the top and bottom ends of the outer side of the clamping plate 23 are respectively provided with a clamping edge 231, and the cross section of the clamping edge 231 is semicircular. Figure 6 and Figure 7 As shown, a plurality of side support plates 24 are circumferentially provided in the gap between the inner cylinder 22 and the outer cylinder 21, and the side support plates 24 slide vertically in the gap between the inner cylinder 22 and the outer cylinder 21, and a clearance cavity 27 is left between the bottom end of the side support plates 24 and the bottom of the gap between the inner cylinder 22 and the outer cylinder 21, and the top end of the side support plates 24 passes through the top wall of the outer cylinder 21, and the side support plates 24 slide relative to the top wall of the outer cylinder 21, and the side support plates 24 are arranged corresponding to the clamping plates 23, and the top and bottom ends of the inner side surfaces of the side support plates 24 are respectively provided with card grooves 241, and the bottom surface of the card groove 241 is semicircular, and the position of the card groove 241 corresponds to the card edge 231, and the card edge 231 is clamped in the card groove 241.

[0040] Since the upper and lower ends of the outer wall of the clamping plate 23 are provided with a clamping edge 231, and they cooperate with the clamping grooves 241 at the upper and lower ends of the inner wall of the side support plate 24, when the side support plate 24 is pressed down, the clamping edge 231 slides out of the clamping groove 241 and abuts against the inner wall of the side support plate 24. The side support plate 24 pushes the clamping plate 23 toward the core sample, so that the upper and lower parts of the clamping plate 23 can be close to the surface of the core sample, so that the core sample can be clamped more stably to prevent the core sample from falling.

[0041] like Figure 1 and Figure 2 As shown, the mobile frame 1 includes a mobile bottom frame 11, side support walls 12 and a top frame 13. Two side support walls 12 are provided and are respectively fixedly connected to the left and right sides of the upper surface of the mobile bottom frame 11. The two side support walls 12 are vertically arranged and parallel to each other. The top frame 13 is fixedly connected to the top ends of the two side support walls 12.

[0042] like Figure 1 and Figure 2 As shown, a fixed beam 14 is fixedly connected inside the top frame 13;

[0043] The lifter 3 is fixedly mounted on the fixed beam 14 , the lifter 3 is vertically arranged, and the output end of the lifter 3 faces downward.

[0044] like Figure 1 and Figure 2 As shown, a lifting beam 15 is vertically slidable between the two side support walls 12 , and the driver 4 is fixedly mounted on the lifting beam 15 .

[0045] like Figure 2As shown, further, a connecting frame 16 is provided on the top surface of the lifting beam 15 , and the output end of the lifter 3 is fixedly connected to the connecting frame 16 .

[0046] like Figure 3 , Figure 7 and Figure 8 As shown, a plurality of sliding holes 211 are provided on the top wall of the outer cylinder 21. The positions of the sliding holes 211 correspond to the positions of the clamping plates 23. The top ends of the side support plates 24 slide vertically in the sliding holes 211.

[0047] The front and rear walls of the yield sliding hole 211 are provided with sliding grooves 212 .

[0048] like Figure 5 and Figure 8 As shown, a slider 232 is provided on the front and rear side walls of the top end of the clamping plate 23 . The slider 232 is in a prism shape and slides in the slide groove 212 .

[0049] The slide groove 212 cooperates with the slider 232 to enable the clamping plate 23 to slide stably and prevent the clamping plate 23 from moving up and down.

[0050] like Figure 7 and Figure 8 As shown, a guide hole 213 is provided in the top wall of the outer cylinder 21 , the axial direction of the guide hole 213 is parallel to the radial direction of the top wall of the outer cylinder 21 , and the guide hole 213 is connected to the yield sliding hole 211 .

[0051] like Figure 7 and Figure 8 As shown, a guide rod 25 is fixedly connected to the top end of the inner side wall of the clamping plate 23 , and the guide rod 25 slides in the guide hole 213 .

[0052] like Figure 8 As shown, further, a spring 26 is provided in the yielding sliding hole 211 , and the spring 26 is sleeved outside the guide rod 25 .

[0053] The guide rod 25 can prevent the spring 26 from bending. The guide rod 25 cooperates with the guide hole 213 to further stabilize the clamping plate 23, allowing the clamping plate 23 to slide stably. In addition, the spring 26 can push the clamping plate 23 outward to facilitate the return of the clamping plate 23.

[0054] like Figure 6 As shown, the top ends of the plurality of side support plates 24 are fixedly connected with a pressing plate 242;

[0055] A sliding sleeve 243 is provided on the upper surface of the pressing plate 242 , and a vertical limiting groove 2431 is provided on the inner side wall of the sliding sleeve 243 .

[0056] The pressing plate 242 can simultaneously drive the multiple side support plates 24 to move up and down, and can simultaneously move the multiple clamping plates 23, thereby improving the convenience of the sampling device.

[0057] like Figure 7 As shown, a limiting edge 41 is provided on the peripheral side surface of the output shaft of the driver 4;

[0058] The output shaft sleeve of the driver 4 is arranged in the sliding sleeve 243 , and the limiting edge 41 is inserted into the limiting groove 2431 . The output shaft of the driver 4 passes through the pressing plate 242 and is fixedly connected to the top wall of the outer cylinder 21 .

[0059] The cooperation between the limiting edge 41 and the limiting groove 2431 can enable the driver 4 to drive the sampling drill tube 2 to rotate, and can prevent the pressing plate 242 and the driver 4 from rotating relative to each other, while not affecting the pressing plate 242 driving the multiple side support plates 24 to move up and down.

[0060] According to the utility model, the mobile frame 1 is moved to the designated sampling location, and the mobile frame 1 is fixed, and then the driver 4 is started, the driver 4 drives the sampling drill tube 2 to rotate, and the lifter 3 is started at the same time, the lifter 3 pushes the lifting beam 15 downward through the connecting frame 16, and the lifting beam 15 drives the motor and the sampling drill tube 2 to move downward, and the roadbed is drilled to the designated depth, the driver 4 and the lifter 3 are closed, and then the pressing plate 242 is manually pressed down, and the pressing plate 242 drives the multiple side support plates 24 to move downward, and the card edges 231 at the upper and lower ends of the outer wall of the clamping plate 23 slide out of the card grooves 241 at the upper and lower ends of the inner wall of the side support plate 24, so that the card edges 231 push the clamping plate 23 toward the core sample in the inner tube 22 while sliding out, and the multiple clamping plates 23 clamp the core sample. The upper and lower ends of the clamping plate 23 are both provided with a clamping edge 231. Therefore, the upper and lower parts of the clamping plate 23 can be close to the surface of the core sample, so that the core sample can be clamped more stably to prevent the core sample from falling. When the clamping plate 23 moves toward the core sample, the guide rod 25 slides into the guide hole 213, the spring 26 is compressed, and then the lifter 3 is started to lift the sampling drill tube 2 out of the borehole, and then the pressing plate 242 is manually lifted, and the pressing plate 242 drives multiple side support plates 24 to move upward. When the slot 241 on the inner wall of the side support plate 24 slides to the position of the clamping edge 231 on the outer wall of the clamping plate 23, the spring 26 is restored and the clamping plate 23 is oriented to the side support plate 24. The clamping edge 231 is again inserted into the slot 241, and the guide rod 25 slides out of the guide hole 213. At this time, multiple clamping plates 23 leave the peripheral side surface of the core sample, and finally the core sample is taken out of the sampling drill tube 2.

[0061] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A road construction rock drilling sampling device, comprising a mobile frame (1) and a sampling drill tube (2), wherein a driver (4) is fixedly installed in the mobile frame (1), and the sampling drill tube (2) is fixedly connected to the output end of the driver (4), and a lifter (3) is provided on the top of the mobile frame (1), and the output end of the lifter (3) is fixed to the top of the housing of the driver (4), characterized in that: The sampling drill tube (2) comprises an inner tube (22) and an outer tube (21), wherein the inner tube (22) is fixedly connected inside the outer tube (21), and a gap is left between the inner tube (22) and the outer tube (21); A plurality of clamping plates (23) are provided on the side wall of the inner cylinder (22), the top end of the clamping plate (23) is radially slidably connected to the top wall of the outer cylinder (21), and the top and bottom ends of the outer side surfaces of the clamping plates (23) are respectively provided with clamping edges (231), and the cross section of the clamping edges (231) is semicircular; A plurality of side support plates (24) are provided in the circumferential direction in the gap between the inner cylinder (22) and the outer cylinder (21), and the side support plates (24) slide vertically in the gap between the inner cylinder (22) and the outer cylinder (21); A clearance cavity (27) is left at the bottom of the gap between the bottom end of the side support plate (24) and the inner tube (22) and the outer tube (21); the top end of the side support plate (24) passes through the top wall of the outer tube (21); and the side support plate (24) and the top wall of the outer tube (21) slide relative to each other; The side support plate (24) is arranged corresponding to the clamping plate (23), and the top and bottom ends of the inner side surface of the side support plate (24) are respectively provided with a clamping groove (241), the bottom surface of the clamping groove (241) is semicircular, the position of the clamping groove (241) corresponds to the position of the clamping edge (231), and the clamping edge (231) is clamped in the clamping groove (241).

2. A road construction rock drilling sampling device according to claim 1, characterized in that: The movable frame (1) comprises a movable bottom frame (11), side support walls (12) and a top frame (13); two side support walls (12) are provided and are respectively fixedly connected to the left and right sides of the upper surface of the movable bottom frame (11); and the top frame (13) is fixedly connected to the top ends of the two side support walls (12).

3. A road construction rock drilling sampling device according to claim 2, characterized in that: A fixed beam (14) is fixedly connected inside the top frame (13), and the lifter (3) is fixedly mounted on the fixed beam (14).

4. A road construction rock drilling sampling device according to claim 3, characterized in that: A lifting beam (15) is provided between the two side support walls (12) to slide vertically, and the driver (4) is fixedly mounted on the lifting beam (15); A connecting frame (16) is provided on the top surface of the lifting beam (15), and the output end of the lifter (3) is fixedly connected to the connecting frame (16).

5. A road construction rock drilling sampling device according to claim 1, characterized in that: A plurality of sliding holes (211) are provided on the top wall of the outer cylinder (21), the positions of the sliding holes (211) correspond to the positions of the clamping plates (23), and the top ends of the side support plates (24) slide vertically in the sliding holes (211); The front and rear hole walls of the yielding sliding hole (211) are provided with sliding grooves (212).

6. A road construction rock drilling sampling device according to claim 5, characterized in that: Slide blocks (232) are provided on the front and rear side walls at the top end of the clamping plate (23), and the slide blocks (232) slide in the slide grooves (212).

7. A road construction rock drilling sampling device according to claim 5, characterized in that: A guide hole (213) is provided in the top wall of the outer cylinder (21), the axial direction of the guide hole (213) is parallel to the radial direction of the top wall of the outer cylinder (21), and the guide hole (213) is connected to the yield sliding hole (211).

8. A road construction rock drilling sampling device according to claim 7, characterized in that: A guide rod (25) is fixedly connected to the top end of the inner side wall of the clamping plate (23), and the guide rod (25) slides in the guide hole (213); A spring (26) is arranged in the yielding sliding hole (211), and the spring (26) is sleeved outside the guide rod (25).

9. A road construction rock drilling sampling device according to claim 1, characterized in that: The top ends of the plurality of side support plates (24) are fixedly connected with a pressing plate (242); A sliding sleeve (243) is provided on the upper surface of the pressing plate (242), and a vertical limiting groove (2431) is provided on the inner side wall of the sliding sleeve (243).

10. A road construction rock drilling sampling device according to claim 9, characterized in that: A limiting edge (41) is provided on the peripheral side surface of the output shaft of the driver (4); The output shaft sleeve of the driver (4) is arranged in the sliding sleeve (243), and the limiting edge (41) is inserted into the limiting groove (2431). The output shaft of the driver (4) passes through the pressing plate (242) and is fixedly connected to the top wall of the outer cylinder (21).