Portable coring equipment

Abstract

The utility model relates to the technical field of drilling sampling, and discloses portable coring equipment which comprises a lifting mechanism, a power mechanism and a drill bit. The drill bit is detachably connected to the power mechanism, and the power mechanism moves on the lifting mechanism in the length direction of the lifting mechanism. The lifting mechanism is provided with a rotating part, and the rotating part can rotate relative to other parts of the lifting mechanism, so that when the power mechanism is separated from the drill bit, the rotating part can drive the power mechanism to rotate away from the position opposite to the drill bit. The situation that the coring efficiency is reduced due to the fact that a lengthening rod is additionally arranged can be improved.

Description

Technical Field

[0001] This application relates to the technical field of drilling sampling, and particularly relates to a portable core sampling device. Background Art

[0002] In engineering projects, core samplers are widely used in the sampling operation during quality inspection. Existing portable core samplers generally include a lifting mechanism, a power mechanism, and a drill bit. Among them, the power mechanism is connected to the drill bit. The power mechanism can move along the length direction of the lifting mechanism on the lifting mechanism to drive the drill bit to move together, and at the same time, the power mechanism can provide rotational power for the drill bit.

[0003] However, in some engineering projects, the required sampling depth is greater than the extension length of the lifting mechanism. At this time, a lengthening rod needs to be installed between the drill bit and the power mechanism to extend the core sampling depth. The lengthening rod usually has a part that is sleeved and matched with the drill bit to be connected to the drill bit. However, when installing the lengthening rod onto the drill bit, the space height between the drill bit and the power mechanism is likely to be less than the extension length of the lengthening rod, resulting in the need to first remove the power mechanism from the lifting mechanism before installing the lengthening rod onto the drill bit. After the lengthening rod is connected to the drill bit, the power mechanism is installed onto the lifting mechanism and connected to the lengthening rod.

[0004] According to the above process of installing the lengthening rod, the reciprocating loading and unloading of the power mechanism increase the workload of the core sampling personnel and easily cause a reduction in the core sampling efficiency. Summary of the Utility Model

[0005] In order to improve the situation of reduced core sampling efficiency caused by installing the lengthening rod, this application provides a portable core sampling device.

[0006] This application provides a portable core sampling device, adopting the following technical solution:

[0007] A portable core sampling device includes a lifting mechanism, a power mechanism, and a drill bit; the drill bit is detachably connected to the power mechanism, and the power mechanism moves along the length direction of the lifting mechanism on the lifting mechanism; there is a rotating part on the lifting mechanism, and the rotating part can rotate relative to the rest of the lifting mechanism, so that when the power mechanism is separated from the drill bit, the rotating part can drive the power mechanism to turn away from the position opposite to the drill bit.

[0008] By adopting the above technical solution, by providing a rotating part on the lifting mechanism, when it is necessary to install a lengthening rod, the rotating part can drive the power mechanism to turn away from the position opposite to the drill bit, avoiding the disassembly and reinstallation of the power mechanism, thereby significantly reducing the workload of the core sampling personnel and improving the core sampling efficiency.

[0009] Optionally, the lifting mechanism includes a lifting rod and a base, the lifting rod is connected to the base, the power mechanism moves on the lifting rod, and the rotating part is arranged on the lifting rod.

[0010] Optionally, the rotating portion is arranged at an end of the lifting rod away from the base.

[0011] By adopting the above technical solution, the rotating part is arranged at the end of the lifting rod away from the base, which is beneficial to reduce the interference with other parts of the lifting mechanism when the coring equipment is working, and is convenient for the coring personnel to operate from the top.

[0012] Optionally, the lifting rod is provided with a first rack in addition to the rotating part, and the rotating part is provided with a second rack, and the first rack and the second rack are both used to cooperate with the power mechanism; when the rotating part rotates until the first rack and the second rack are opposite to each other, the teeth of the first rack are connected with the teeth of the second rack.

[0013] By adopting the above technical solution, when the rotating part rotates to the point where the first rack is opposite to the second rack, the teeth are connected, thereby improving the stable movement of the power mechanism on the lifting rod and improving the stability and reliability of the equipment.

[0014] Optionally, the base is provided with rollers.

[0015] By adopting the above technical solution, the rollers arranged on the base facilitate the movement of the coring device, thereby increasing the portability of the device.

[0016] Optionally, the power mechanism includes a rotation source and a lifter, the rotation source is connected to one side of the lifter, the rotation source is used to drive the drill bit to rotate, and the lifter is sleeved and moved on the lift rod;

[0017] The lifter has a yielding portion, and the distance between the outer wall of the yielding portion and the outer wall of the lifting rod is the shortest in the lifter; when the rotating portion drives the lifter to rotate until the yielding portion approaches the drill bit, the drill bit is staggered with the yielding portion along the length direction of the lifting rod.

[0018] By adopting the above technical solution, when the extension rod is installed, sufficient space is formed between the power mechanism and the drill bit, which is convenient for the coring personnel to operate.

[0019] Optionally, the cross section of the lifting rod along its length direction is polygonal.

[0020] By adopting the above technical solution, the cross section is polygonal, and such a design makes the movement of the lifter on the lifting rod more stable.

[0021] Optionally, a direction of a rotation axis of the rotating part on the lifting mechanism is parallel to a length extension direction of the lifting mechanism.

[0022] By adopting the above technical solution, the direction of the rotation axis of the rotating part on the lifting mechanism is parallel to the length extension direction of the lifting mechanism, so that the rotating part is not likely to affect the stability of the lifting mechanism when rotating.

[0023] Optionally, the drill bit is cylindrical and has teeth.

[0024] By adopting the above technical solution, the drill bit is cylindrical and has cutting teeth, so that the drill bit can better cut into the sample during sampling, thereby improving the accuracy and efficiency of sampling.

[0025] Optionally, the blade teeth have a thickness of 3 mm.

[0026] By adopting the above technical solution, under the action of the same power motor, the pressure of the cutter teeth is greater, thereby improving the cutting ability of the drill bit.

[0027] In summary, the present application includes at least one of the following beneficial effects:

[0028] 1. When the power mechanism is separated from the drill bit, the power mechanism is driven by the rotating part to rotate away from the position relative to the drill bit, so that it is convenient to install an extension rod between the power mechanism and the drill bit, avoiding the process of repeatedly loading and unloading the power mechanism in the prior art, reducing the workload of the coring personnel and improving the coring efficiency;

[0029] 2. Rollers are installed on the base to facilitate the movement of the entire coring equipment;

[0030] 3. The rotating part is arranged at the end of the lifting rod away from the base, which can improve the installation convenience of the rotating part. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0032] Figure 2 It is a structural schematic diagram of the lifting mechanism in the embodiment of the present application;

[0033] Figure 3 It is a schematic diagram of the structure in which the yielding portion and the drill bit are relative to each other in the implementation of the present application.

[0034] Explanation of the reference numerals: 1. lifting mechanism; 101. lifting rod; 102. base; 2. power mechanism; 21. rotation source; 22. lifter; 3. drill bit; 4. rotating part; 5. first rack; 6. second rack; 7. roller; 8. yielding part; 9. blade teeth; 10. handle; 11. rotating shaft; 12. rotating handle. DETAILED DESCRIPTION

[0035] The following further elaborates on this application in conjunction with the attached Figures 1 - 3 drawings for a more detailed description.

[0036] An embodiment of this application discloses a portable core sampling device. Referring to Figure 1 , the portable core sampling device includes a lifting mechanism 1, a power mechanism 2, and a drill bit 3. The drill bit 3 is detachably connected to the power mechanism 2, enabling the power mechanism 2 to drive the drill bit 3 to rotate for core sampling. The power mechanism 2 moves along the length direction of the lifting mechanism 1 to achieve the lifting function of the drill bit 3, meeting the core sampling requirements for different depths.

[0037] The lifting mechanism 1 includes a lifting rod 101 and a base 102. The lifting rod 101 can be detachably connected to the base 102 by bolts or welded to the base 102. In this embodiment, it is preferably welded to the base 102. The power mechanism 2 moves along the length direction of the lifting rod 101 on the lifting rod 101. When the device is in use, the base 102 is fixed to the surface to be drilled by expansion bolts to position the lifting mechanism 1. In addition, rollers 7 are also provided on the base 102 to enable the core sampling device to move at the work site, improving the convenience and flexibility of the device.

[0038] Referring to Figure 1 and Figure 2 , in order not to disassemble the power mechanism 2 when adding a lengthening rod, the lifting rod 101 has a rotating part 4 that can rotate relative to the lifting rod 101, and the cross-sectional dimension of the rotating part 4 is the same as that of the other parts of the lifting rod 101, so that when the rotating part 4 coincides with the other parts of the lifting rod 101, the power mechanism 2 can move back and forth between the rotating part 4 and the other parts of the lifting rod 101.

[0039] Referring to Figure 2 , in this embodiment, a rotating shaft 11 is arranged along the length direction of the lifting rod 101. The rotating shaft 11 is made of a steel pipe, and the axis direction of the rotating shaft 11 is parallel to the length direction of the lifting rod 101. The rotating part 4 is sleeved on the outer wall of the rotating shaft 11, and the rotating part 4 can rotate relative to the other parts of the lifting rod 101 through the rotating shaft 11. In other embodiments, the rotating part 4 can also rotate on the lifting rod 101 by setting a rotating ring at the end of the rotating part 4 and providing a ring groove on the lifting rod 101 for the rotating ring to rotate.

[0040] Specifically, the rotating shaft 11 can be fixed to the lifting rod 101 or rotate on the lifting rod 101; if the rotating shaft 11 rotates on the lifting rod 101, the rotating part 4 is fixedly connected to the rotating shaft 11; if the rotating shaft 11 is fixed to the lifting rod 101, the rotating part 4 is sleeved and rotates on the rotating shaft 11. In this embodiment, it is preferably that the rotating shaft 11 is fixedly inserted into the lifting rod 101, and the rotating part 4 rotates on the rotating shaft 11 along the axis of the rotating shaft 11.

[0041] Reference Figure 1 and Figure 3 When the drill bit 3 is opposite to the desired drilling position, the power mechanism 2 is separated from the drill bit 3, and the power mechanism 2 is moved to the rotating part 4, the rotating part 4 rotates to turn the power mechanism 2 away from the position opposite to the drill bit 3, so that the power mechanism 2 is not easy to interfere with the extension rod when the extension rod is installed, thereby eliminating the need to completely remove the power mechanism 2 from the lifting rod 101.

[0042] More specifically, the position of the rotating part 4 on the lifting rod 101 is preferably on the end of the lifting rod 101 away from the base 102, so as to be able to adapt to the length of the extension rod to the greatest extent and improve the convenience of installing the extension rod. In addition, since the end of the lifting rod 101 away from the base 102 is used less during the drilling process of the equipment, the drill bit 3 has left the rotating part 4 during the process of drilling into the sampling site, so that the drill bit 3 is not easily affected by the rotating part 4 and swings during the drilling process, and the drill bit 3 is not easy to jump or get stuck during the drilling process.

[0043] Reference Figure 1 and Figure 3 , wherein the power mechanism 2 includes a rotation source 21 and a lifter 22. The rotation source 21 is a rotary motor connected to one side of the lifter 22, and the output end of the rotation source 21 is used to connect to the drill bit 3 or the extension rod to provide rotational power to the drill bit 3. The lifter 22 is sleeved on the lifting rod 101 and can move along the length direction of the lifting rod 101 to provide linear power to the drill bit 3.

[0044] In particular, the lifter 22 is in a square shape, and a handle 10 is provided on the side of the lifter 22 facing away from the rotation source 21, and the handle 10 is for the staff to hold. One side of the lifter 22 is a clearance portion 8, and the rotation source 21 and the handle 10 are respectively opposite to the two sides of the clearance portion 8. The distance between the outer wall of the clearance portion 8 and the outer wall of the lifting rod 101 is the shortest among all parts of the lifter 22.

[0045] When the rotating part 4 drives the lifter 22 to rotate to the position where the giving way part 8 is close to the drill bit 3, the rotation source 21 leaves the position opposite to the drill bit 3, and at this time, the position of the drill bit 3 along the length direction of the lifting rod 101 will be staggered with the giving way part 8, so that both the extension rod and the drill bit 3 can move along the axial direction of the drill bit 3 without interfering with the lifter 22.

[0046] Furthermore, in order to improve the stability of the lifter 22 moving on the lifting rod 101, the cross section of the lifting rod 101 along its length direction is polygonal, and in this embodiment, it is preferably square. When the lifter 22 moves on the lifting rod 101, the shape of the lifting rod 101 makes it difficult for the lifter 22 to rotate during the lifting process.

[0047] Reference Figure 1 and Figure 2 In order to move the lifter 22 on the lift rod 101, the lift rod 101 is fixed with a first rack 5 except the rotating part 4, and a second rack 6 is fixed to the outer wall of the rotating part 4. The size and pitch of the teeth of the first rack 5 and the second rack 6 are consistent, and a gear (not shown in the figure) is rotatably connected in the lifter 22. The first rack 5 and the second rack 6 both extend along the length direction of the lift rod 101, and the axis direction of the gear is perpendicular to the length direction of the lift rod 101.

[0048] When the lifter 22 is located at the part of the lifting rod 101 other than the rotating part 4, the gear meshes with the first rack 5 and is driven by rotating the gear; when the lifter 22 is located on the rotating part 4, the gear meshes with the second rack 6. When the rotating part 4 rotates to the point where the first rack 5 and the second rack 6 are opposite, the teeth of the first rack 5 and the teeth of the second rack 6 are connected to form a continuous rack structure. At this time, the gear can be moved back and forth on the first rack 5 and the second rack 6 by rotating the gear, so as to realize the switching of the position of the lifter 22 between the part of the lifting rod 101 other than the rotating part 4 and the rotating part 4.

[0049] In order to drive the gear to rotate, the side of the lifter 22 is provided with a rotating handle 12 coaxially connected to the gear, so that the gear can be driven to rotate by rotating the rotating handle 12 outside the lifter 22 .

[0050] Reference Figure 1 and Figure 3 In addition, in this embodiment, the drill bit 3 is cylindrical, and has teeth 9 fixed at even intervals along its own circumference at the bottom, so that sampling can be performed during the drilling of the sampling site. The teeth 9 of the drill bit 3 are made of cobalt-based diamond material, which has the characteristics of high hardness, good wear resistance, and high bending strength, so as to improve the drilling efficiency of the drill bit 3. The thickness of the teeth 9 of the drill bit 3 is 3.0 mm. Compared with the existing teeth 9 with a thickness of 3.7 mm, the teeth 9 with a thickness of 3.0 mm have a smaller cutting area. Under the action of the same power motor, the pressure of the teeth 9 is greater and the cutting ability is stronger, thereby further improving the coring efficiency of the drill bit 3.

[0051] The implementation principle of a portable coring device in an embodiment of the present application is as follows: when the lifter 22 moves to the rotating part 4, the rotating part 4 rotates to drive the rotation source 21 to leave the position relative to the drill bit 3, and the yielding part 8 is close to the drill bit 3 to provide installation space for the extension rod, and the extension rod can be installed without disassembling the power mechanism 2.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A portable core sampling device, characterized in that, include: A lifting mechanism (1), a power mechanism (2) and a drill bit (3); the drill bit (3) is detachably connected to the power mechanism (2), and the power mechanism (2) is movable on the lifting mechanism (1) along the length direction of the lifting mechanism (1); the lifting mechanism (1) is provided with a rotating part (4), and the rotating part (4) is capable of rotating relative to other parts of the lifting mechanism (1), so that when the power mechanism (2) and the drill bit (3) are separated, the rotating part (4) can drive the power mechanism (2) to rotate away from a position relative to the drill bit (3).

2. The portable core sampling device according to claim 1, characterized in that: The lifting mechanism (1) comprises a lifting rod (101) and a base (102); the lifting rod (101) is connected to the base (102); the power mechanism (2) moves on the lifting rod (101); and the rotating part (4) is arranged on the lifting rod (101).

3. The portable core sampling device according to claim 2, wherein: The rotating part (4) is arranged at an end of the lifting rod (101) away from the base (102).

4. A portable core sampling device according to claim 2, characterized in that: The lifting rod (101) is provided with a first rack (5) in addition to the rotating part (4), and a second rack (6) is provided on the rotating part (4), and the first rack (5) and the second rack (6) are both used to cooperate with the power mechanism (2); when the rotating part (4) rotates until the first rack (5) and the second rack (6) are opposite to each other, the teeth of the first rack (5) and the teeth of the second rack (6) are connected.

5. The portable core sampling device according to claim 2, wherein: The base (102) is provided with a roller (7).

6. The portable core sampling device according to claim 2, characterized in that: The power mechanism (2) comprises a rotation source (21) and a lifter (22), wherein the rotation source (21) is connected to one side of the lifter (22), the rotation source (21) is used to drive the drill bit (3) to rotate, and the lifter (22) is sleeved on and moves on the lift rod (101); The lifter (22) has a clearance portion (8), and the distance between the outer wall of the clearance portion (8) and the outer wall of the lifting rod (101) is the shortest in the lifter (22); when the rotating portion (4) drives the lifter (22) to rotate until the clearance portion (8) is close to the drill bit (3), the drill bit (3) is staggered with the clearance portion (8) along the length direction of the lifting rod (101).

7. A portable core sampling device according to claim 6, characterized in that: The cross section of the lifting rod (101) along its length direction is polygonal.

8. The portable core sampling device according to claim 1, characterized in that: The direction of the rotation axis of the rotating part (4) on the lifting mechanism (1) is parallel to the length extension direction of the lifting mechanism (1).

9. The portable core sampling device according to claim 1, wherein: The drill bit (3) is cylindrical and has cutting teeth (9).

10. A portable core sampling device according to claim 9, characterized in that: The thickness of the blade teeth (9) is 3 mm.

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