Geological drilling core sampling protection equipment
By incorporating retaining blocks and push rod bodies into the geological drilling equipment, the problem of core slippage was solved, achieving stable core sampling and improving equipment reliability.
Patent Information
- Application Number
- CN202423142131.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing geological drilling equipment lacks effective shielding structures during core sampling, leading to core slippage and damage, which affects the accuracy and integrity of the sampling.
The design includes a drive shaft, sampling tube, retaining block, and push rod body. The retaining block prevents the rock core from falling out, and the push rod body pushes the blocking plate into the through hole to block it. Combined with flange connection and linkage equipment, it ensures the stability and reliability of the equipment.
It improves the accuracy and integrity of core sampling, prevents core loss and damage during the sampling process, and enhances the reliability and service life of the equipment.
Smart Images
Figure CN223497865U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drilling and sampling technology, specifically to equipment for protecting core samples taken during geological drilling. Background Technology
[0002] Geological drilling is an engineering activity that uses drilling rigs and related technical equipment to drill downwards from the surface to obtain underground materials such as rock cores, rock powder, and soil samples, in order to analyze and study the stratigraphic structure, rock properties, and distribution of mineral resources. Core sampling is a process of obtaining rock samples from underground through drilling technology; these rock samples are called rock cores.
[0003] While existing sampling equipment offers numerous advantages, it still suffers from several drawbacks. Firstly, it provides insufficient protection for the rock core, lacking a shielding structure to protect the core inside the sampling tube. This results in the core slipping out of the tube due to the looseness of the soft rock layer when it is removed from the borehole. Consequently, it becomes difficult for workers to pinpoint the location of the extracted core within the soil layer, impacting their assessment of the soil conditions. Utility Model Content
[0004] In view of the problems in the prior art, this utility model provides a geological drilling core sampling protection device.
[0005] The technical solution adopted by this utility model to solve its technical problem is a geological drilling core sampling protection device, including a drive shaft, a vent hole and a retaining block. A sampling tube is provided on the lower outer wall of the drive shaft, and a drill bit is provided on the lower outer wall of the sampling tube. A circular array of vent holes is opened inside the sampling tube. A retaining block is provided on one side of the lower inner wall of the sampling tube. A through hole is opened inside the retaining block. A circular array of receiving grooves is opened on one side of the inner wall of the through hole. A push rod body is provided on one side of the receiving groove. A baffle plate is installed on the outer wall of one end of the push rod body.
[0006] By adopting the above technical solution, the drive shaft can drive the sampling tube and drill bit to rotate, and the drill bit can drill into the soil layer, allowing the sampling tube to enter the borehole. The soil or rock after drilling can enter the sampling tube through the through hole for storage. The retaining block effectively prevents the rock core from falling off or being damaged during the sampling process, thereby improving the accuracy and integrity of the sampling. The push rod body pushes the blocking plate into the through hole, which can block the inside of the through hole, further improving the blocking effect of the retaining block on the rock core inside the sampling tube.
[0007] Specifically, a connector is rotatably mounted on one side of the outer wall of the drive shaft, and a driven wheel is mounted on the upper side of the outer wall of the drive shaft, with the driven wheel located at the upper end of the connector.
[0008] By adopting the above technical solution, the external linkage device can be connected to the drive shaft through the connector, and the vertical movement of the drive shaft can be adjusted to give the drill bit drilling pressure on the soil layer. The external drive mechanism can drive the driven wheel to rotate in a circle, providing power to the drive shaft.
[0009] Specifically, the drive shaft, sampling tube, and drill bit are all provided with flanges, and the drive shaft, sampling tube, and drill bit are connected to each other through flanges.
[0010] By adopting the above technical solution, the flange connection method is not only structurally stable and able to withstand the huge pressure during drilling, but also easy to disassemble and maintain, improving the reliability and service life of the equipment. In addition, the staff can increase the number of sampling tubes used by the flange.
[0011] Specifically, the lower outer wall of the drill bit is provided with a circular array of drill bits, the outer wall of the drill bit is provided with helical blades, the inside of the drill bit is hollow, and the drill bit is connected to the inside of the sampling tube.
[0012] By adopting the above technical solutions, the drill bit and auger blades can cut and break rocks more effectively, improving drilling efficiency. At the same time, the hollow design inside the drill bit is connected to the inside of the sampling tube, which is conducive to the smooth entry and preservation of rock cores into the sampling tube.
[0013] Specifically, a sealing ring is fixedly attached to the upper end of the inner wall of the vent hole, and reinforcing ribs that are equally spaced and parallel are welded to the inner wall of the vent hole.
[0014] By adopting the above technical solution, the sealing ring ensures the gas sealing between the vent holes when the sampling tubes are connected, preventing external impurities from entering the sampling tubes. The reinforcing ribs enhance the strength and stability of the vent holes, preventing them from being damaged during drilling. Furthermore, the outer wall of the sampling tube located at the upper end of the soil layer is fitted with quick-connect fittings arranged in a circular array. The quick-connect fittings are connected to the inside of the vent holes. When the push rod body needs to be used, the drive shaft stops working, and the operator can connect the air supply pipe of the external air pump to the quick-connect fittings, thereby enabling controlled gas delivery to the inside of the vent holes.
[0015] Specifically, the inner wall of the through hole is designed in a conical shape, and the upper surface of the retaining block is designed to be flat.
[0016] By adopting the above technical solution, the conical shape design facilitates the smooth entry and fixation of the rock core during the sampling process. At the same time, the flat design of the upper surface of the retaining block ensures its tight fit with the inner wall of the sampling tube, further preventing the rock core from falling off.
[0017] Specifically, the blocking plate is located inside the receiving groove, and a connecting pipe is inserted into the outer wall of one end of the push rod body. The connecting pipe passes through the retaining block and the sampling pipe and is connected to the inside of the ventilation hole.
[0018] By adopting the above technical solution, the connecting tube allows gas to be injected into the push rod body through the vent during subsequent sampling. The push rod body pushes the baffle plate out of the receiving groove and into the through hole, thereby shielding the inside of the through hole to assist in the extraction of the core or protect the integrity of the core.
[0019] The beneficial effects of this utility model are:
[0020] (1) The geological drilling core sampling protection device described in this utility model can easily adjust the overall length of the sampling tube after assembly, so as to ensure that the drilling depth of the soil layer can be adjusted.
[0021] (2) The geological drilling core sampling protection device described in this utility model blocks the inside of the through hole to assist in the extraction of the core or to protect the integrity of the core, effectively preventing the core from falling off or being damaged during the sampling process, thereby improving the accuracy and integrity of the sampling. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Figure 1 This is a schematic diagram of the drive shaft structure of this utility model;
[0024] Figure 2 This is a cross-sectional schematic diagram of the sampling tube structure of this utility model;
[0025] Figure 3 This is a partially enlarged schematic diagram of the sampling tube structure of this utility model;
[0026] Figure 4 This is a cross-sectional schematic diagram of the retaining block structure of this utility model;
[0027] Figure 5 This is an exploded view of the barrier plate structure of this utility model.
[0028] In the diagram: 1. Drive shaft; 11. Driven wheel; 12. Connecting piece; 13. Sampling tube; 14. Flange; 15. Drill bit; 2. Vent hole; 21. Sealing ring; 22. Reinforcing rib; 3. Retaining block; 31. Through hole; 32. Storage groove; 33. Baffle plate; 34. Push rod body; 35. Connecting pipe. Detailed Implementation
[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0030] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the geological drilling core sampling protection device of this utility model includes a drive shaft 1, a ventilation hole 2, and a retaining block 3. A sampling tube 13 is provided on the lower outer wall of the drive shaft 1, and a drill bit 15 is provided on the lower outer wall of the sampling tube 13. A ventilation hole 2 with a circular array is opened inside the sampling tube 13. A retaining block 3 is provided on one side of the lower end of the inner wall of the sampling tube 13. A through hole 31 is opened inside the retaining block 3. A collection groove 32 with a circular array is opened on one side of the inner wall of the through hole 31. A push rod body 34 is provided on one side of the inside of the collection groove 32. A baffle plate 33 is installed on the outer wall of one end of the push rod body 34.
[0031] In use, the drive shaft 1 can drive the sampling tube 13 and the drill bit 15 to rotate, and the drill bit 15 can drill into the soil layer, allowing the sampling tube 13 to enter the borehole. The soil or rock after drilling can enter the sampling tube 13 through the through hole 31 for storage. The retaining block 3 effectively prevents the rock core from falling off or being damaged during the sampling process, thereby improving the accuracy and integrity of the sampling. The push rod body 34 pushes the blocking plate 33 into the through hole 31, which can block the inside of the through hole 31, further improving the blocking effect of the retaining block 3 on the rock core inside the sampling tube 13.
[0032] To drive rotation, for example, such as Figure 1 As shown, a connector 12 is rotatably mounted on one side of the outer wall of the drive shaft 1, and a driven wheel 11 is mounted on the upper side of the outer wall of the drive shaft 1. The driven wheel 11 is located on the upper end of the connector 12.
[0033] In use, the external linkage device can be connected to the drive shaft 1 through the connector 12, which can adjust the vertical movement of the drive shaft 1 to give the drill bit 15 drilling pressure on the soil layer. The external drive mechanism can drive the driven wheel 11 to rotate in a circular motion, providing power to the drive shaft 1.
[0034] To adjust the number of sampling tubes 13 used, for example, such as Figure 1 As shown, the drive shaft 1, sampling tube 13 and drill bit 15 are all provided with flanges 14 on their outer walls, and the drive shaft 1, sampling tube 13 and drill bit 15 are connected by flanges 14.
[0035] When in use, the connection method of flange 14 is not only structurally stable and able to withstand the huge pressure during drilling, but also easy to disassemble and maintain, improving the reliability and service life of the equipment. In addition, the number of sampling tubes 13 can be increased by the use of flange 14.
[0036] For drilling, exemplarily, such as Figure 1 As shown, the lower outer wall of the drill bit 15 is provided with a circular array of drill bits, the outer wall of the drill bit 15 is provided with helical blades, the inside of the drill bit 15 is hollow, and the drill bit 15 is connected to the inside of the sampling tube 13.
[0037] When in use, the drill bit and auger blades can cut and break rocks more effectively, improving drilling efficiency. At the same time, the hollow design inside the drill bit 15 is connected to the inside of the sampling tube 13, which is conducive to the smooth entry and preservation of the rock core into the sampling tube 13.
[0038] For sealing, exemplarily, such as Figure 3 As shown, a sealing ring 21 is attached and fixed to the upper end of the inner wall of the vent hole 2, and reinforcing ribs 22 are welded to the inner wall of the vent hole 2 at equal intervals and parallel distribution.
[0039] During use, the sealing ring 21 ensures the gas sealing between the vent holes 2 when the sampling tubes 13 are connected, preventing external impurities from entering the sampling tubes 13. The reinforcing rib 22 enhances the strength and stability of the vent holes 2, preventing them from being damaged during drilling. The outer wall of the sampling tubes 13 located at the upper end of the soil layer is fitted with quick-connect fittings arranged in a circular array. The quick-connect fittings are connected to the inside of the vent holes 2. When the push rod body 34 needs to be driven, the drive shaft 1 stops working. The operator can connect the air supply pipe of the external air pump to the quick-connect fitting, thereby controlling the delivery of gas into the vent holes 2.
[0040] For the purpose of blocking material, for example, such as Figure 2 As shown, the inner wall of the through hole 31 is designed with a conical shape, and the upper surface of the retaining block 3 is designed with a flat shape.
[0041] When in use, the conical shape design facilitates the smooth entry and fixation of the rock core during the sampling process. At the same time, the flat design of the upper surface of the retaining block 3 ensures its tight fit with the inner wall of the sampling tube 13, further preventing the rock core from falling off.
[0042] For the purpose of blocking material, for example, such as Figure 5 As shown, the baffle plate 33 is located inside the storage groove 32, and a connecting pipe 35 is inserted into the outer wall of one end of the push rod body 34. The connecting pipe 35 passes through the retaining block 3 and the sampling pipe 13 and is connected to the inside of the ventilation hole 2.
[0043] In use, the connecting pipe 35 allows gas to be injected into the push rod body 34 through the vent 2 during subsequent sampling. The push rod body 34 pushes the baffle plate 33 out of the receiving groove 32 and into the through hole 31, thereby blocking the inside of the through hole 31 to assist in the extraction of the core or to protect the integrity of the core.
[0044] In use, the external linkage device is connected to the drive shaft 1 via the connector 12 to ensure a stable connection, thereby adjusting the vertical movement of the drive shaft 1. Simultaneously, the external drive mechanism is connected to the driven wheel 11 to provide power to the drive shaft 1.
[0045] The drive shaft 1, sampling tube 13 and drill bit 15 are connected by flange 14, which can adjust the number of sampling tubes 13 used and ensure that the flange 14 is tightly connected and can withstand the huge pressure during the drilling process. The external drive mechanism drives the driven wheel 11 to rotate, thereby driving the drive shaft 1, sampling tube 13 and drill bit 15 to rotate. The vertical movement of the drive shaft 1 is adjusted by the external linkage device, which gives the drill bit 15 drilling pressure on the soil layer. The drill bit and spiral blade at the lower end of the drill bit 15 cut and break the rock. At the same time, the hollow design inside the drill bit 15 is connected to the inside of the sampling tube 13, so that the rock core can be smoothly entered into the sampling tube 13 for storage.
[0046] The retaining block 3 effectively prevents the rock core from falling off or being damaged during the sampling process. When sampling the rock core inside the sampling tube 13, the operation of the drive shaft 1 is stopped, and the air supply pipe of the external air pump is connected to the quick-connect connector on the outer wall of the sampling tube 13. Gas is injected into the push rod body 34 through the air vent 2. The push rod body 34 pushes the baffle plate 33 out of the receiving groove 32 and into the through hole 31 to block the inside of the through hole 31, so as to assist in the removal of the rock core or protect the integrity of the rock core. Afterwards, by disassembling the flange 14 connection, the sampling tube 13, drill bit 15 and other components are removed from the drive shaft 1, so that the rock core inside the sampling tube 13 can be removed.
[0047] It should be noted that this utility model is a geological drilling core sampling protection device. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. Geological drilling core sampling protection equipment, characterized in that, The device includes a drive shaft (1), a vent (2), and a retaining block (3). A sampling tube (13) is provided on the lower outer wall of the drive shaft (1). A drill bit (15) is provided on the lower outer wall of the sampling tube (13). A circular array of vents (2) is provided inside the sampling tube (13). A retaining block (3) is provided on one side of the lower end of the inner wall of the sampling tube (13). A through hole (31) is provided inside the retaining block (3). A circular array of receiving grooves (32) is provided on one side of the inner wall of the through hole (31). A push rod body (34) is provided on one side of the receiving groove (32). A baffle plate (33) is installed on the outer wall of one end of the push rod body (34).
2. The geological drilling core sampling protection equipment according to claim 1, characterized in that, A connector (12) is rotatably mounted on one side of the outer wall of the drive shaft (1), and a driven wheel (11) is mounted on the upper side of the outer wall of the drive shaft (1). The driven wheel (11) is located at the upper end of the connector (12).
3. The geological drilling core sampling protection equipment according to claim 1, characterized in that, The drive shaft (1), sampling tube (13) and drill bit (15) are all provided with flanges (14) on their outer walls, and the drive shaft (1), sampling tube (13) and drill bit (15) are connected to each other through flanges (14).
4. The geological drilling core sampling protection equipment according to claim 1, characterized in that, The lower outer wall of the drill bit (15) is provided with a circular array of drill bits, the outer wall of the drill bit (15) is provided with helical blades, the inside of the drill bit (15) is hollow, and the drill bit (15) is connected to the inside of the sampling tube (13).
5. The geological drilling core sampling protection equipment according to claim 1, characterized in that, A sealing ring (21) is attached and fixed to the upper end of the inner wall of the vent (2), and reinforcing ribs (22) are welded to the inner wall of the vent (2) at equal intervals.
6. The geological drilling core sampling protection equipment according to claim 1, characterized in that, The inner wall of the through hole (31) is designed in a conical shape, and the upper surface of the retaining block (3) is designed to be flat.
7. The geological drilling core sampling protection equipment according to claim 1, characterized in that, The baffle plate (33) is located inside the storage groove (32). A connecting pipe (35) is inserted into the outer wall of one end of the push rod body (34), and the connecting pipe (35) passes through the retaining block (3) and the sampling pipe (13) and is connected to the inside of the ventilation hole (2).