Protective device for geological exploration drilling
By designing a protective device with a shell and a cleaning plate, the problems of rock cuttings splashing and mud spillage were solved, enabling safe and efficient drilling operations and improving operational safety and efficiency.
Patent Information
- Application Number
- CN202522704938.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-12-22
AI Technical Summary
In geological exploration drilling, existing protective devices cannot effectively prevent rock cuttings from splashing and mud from spreading, which can cause injury to workers and environmental pollution. Furthermore, the inconvenience of cleaning up these issues affects drilling efficiency.
A protective device with a shell, a drain port, and a slag discharge port was designed. The device uses a drill rod to drive a cleaning plate to clean up rock cuttings. Combined with elastic elements and a clamping block structure, it can achieve orderly discharge and cleaning of rock cuttings and prevent mud from spreading.
It enables the orderly removal of rock cuttings and mud, ensuring operational safety, improving drilling efficiency, reducing cleaning difficulty, and extending the life of the equipment.
Smart Images
Figure CN223824951U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drilling equipment technology, and in particular to a protective device for geological exploration drilling. Background Technology
[0002] In geological exploration drilling operations, especially with small and medium-sized drilling equipment, the lack of effective protective measures means that rock cuttings ejected during high-speed drill pipe rotation can violently splash, easily causing personal injury to workers. Simultaneously, the mud discharged during drilling easily spreads, making the working area slippery and further increasing the risk of slips and falls, resulting in a harsh working environment. Existing literature records numerous technical improvements addressing these problems, mostly involving the installation of protective covers for safety. While these effectively block rock cuttings from splashing, the cuttings accumulate inside the covers and are difficult to clean. This not only increases the rotational resistance of the drill pipe but also clogs the mud discharge channels, thus affecting drilling efficiency. The overall technical results are unsatisfactory, hindering widespread adoption. Utility Model Content
[0003] The technical objective of this invention is to provide a protective device for geological exploration drilling that has protective functions, facilitates the cleaning of rock cuttings, and prevents mud spillage, thereby addressing the deficiencies in the existing technology.
[0004] To achieve the above technical objectives, the present invention adopts the following technical solution:
[0005] A protective device for geological exploration drilling includes a disc-shaped shell with a drain port and a slag discharge port on its side wall. A slag pan is fixed to the outside of the shell. A frustum is fixed at the center of the top of the shell, with a threaded hole in the frustum and a threaded sleeve inside the threaded hole. The threaded sleeve has a central hole. A rotating sleeve is rotatably connected to the frustum, and two mounting seats are fixed to the rotating sleeve. Clamping blocks are movably connected to the opposite sides of the two mounting seats. When the two clamping blocks move downwards simultaneously, they move towards the middle. An elastic element that drives the clamping blocks to move upwards is installed in the mounting seat. Rollers are installed on the opposite sides of the two clamping blocks. The threaded sleeve is located above the two clamping blocks, and at least one cleaning plate is fixedly connected to the rotating sleeve.
[0006] Furthermore, the mounting base has an inclined extending groove, and the clamping block is slidably mounted on the groove.
[0007] Furthermore, the elastic element is a sheet or a spring, and its two ends are in contact with the mounting seat and the clamping block, respectively.
[0008] Furthermore, the cleaning plate adopts a hollow structure, a filter screen is installed on the drain port, and the drain port and slag discharge port are distributed on opposite sides of the shell.
[0009] Furthermore, a push ring is rotatably connected to the lower end of the screw sleeve. When the screw sleeve moves downward, the push ring applies a thrust to the two clamping blocks. The push ring and the screw sleeve are connected by a thrust bearing.
[0010] Furthermore, the lower end of the shell is provided with an outwardly extending edge, and the edge is provided with a number of ground nails.
[0011] Furthermore, the upper end of the screw sleeve is provided with a screwing part.
[0012] Furthermore, the material clearing plate is provided in two parts, which are fixedly connected to the rotating sleeve via two mounting seats.
[0013] Compared with the prior art, the protective device for geological exploration drilling in this utility model has the following beneficial technical effects:
[0014] 1. During drilling, mud and rock cuttings can be discharged in an orderly manner, avoiding mud spillage and rock cuttings splashing, thereby achieving a good protective effect, avoiding personal injury to workers, reducing damage to the working environment, and further ensuring operational safety.
[0015] 2. Rock cuttings are cleaned by rotating the cleaning plate, which is efficient, convenient and saves manpower. The operation of the cleaning plate is powered by the drill pipe, eliminating the need for an additional power unit. This makes the overall structure of the protective device for geological exploration drilling small and compact, with low manufacturing cost and high feasibility.
[0016] 3. When the protective device for geological exploration drilling is used to clean up rock cuttings, the clamping block holds the drill rod tightly via rollers, allowing the drill rod to drill downwards normally without interrupting the drilling operation. This ensures drilling efficiency and avoids impact damage to the protective device caused by axial vibration of the drill rod, thus extending the service life of the protective device for geological exploration drilling. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.
[0018] Figure 1 This is one of the schematic diagrams of the overall structure of the protective device for geological exploration drilling in the embodiments.
[0019] Figure 2 This is the second schematic diagram of the overall structure of the protective device for geological exploration drilling in the embodiment.
[0020] Figure 3 This is the third schematic diagram of the overall structure of the protective device for geological exploration drilling in the embodiment.
[0021] Figure 4 This is a schematic diagram of the internal structure of the protective device used for geological exploration drilling in the embodiment.
[0022] Figure 5 This is a schematic diagram of the mating structure of the mounting seat, clamping block, and rotating sleeve in the embodiment.
[0023] Figure 6 This is a schematic diagram showing the state when the clamping block clamps the drill rod in the embodiment.
[0024] Figure label:
[0025] 1-Shell; 2-Drain port; 3-Filter screen; 4-Threaded hole; 5-Edge; 6-Ground nail; 7-Slag tray; 8-Threaded sleeve; 9-Center hole; 10-Twisting part; 11-Clean plate; 12-Slag discharge port; 13-Seat; 14-Clamping block; 15-Rotating sleeve; 16-Push ring; 17-Frustum seat; 18-Roller; 19-Elastic element; 20-Slide groove; 21-Drill rod. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0027] Reference Figures 1 to 5As shown in the embodiment, a protective device for geological exploration drilling is disclosed, including a shell 1. The shell 1 is disc-shaped, closed at the top and open at the bottom. A drain port 2 and a slag discharge port 12 are provided on the side wall of the shell 1. A slag disc 7 communicating with the slag discharge port 12 is fixed to the outside of the shell 1 for collecting rock cuttings discharged from the slag discharge port 12. A frustum 17 is fixed at the center of the top of the shell 1. A vertically extending and through threaded hole 4 is provided on the frustum 17, and a threaded sleeve 8 is provided inside the threaded hole 4, with the two threadedly engaged. The threaded sleeve 8 has a vertically extending central hole 9. A rotating sleeve 15 is rotatably connected to the frustum 17, located inside the shell 1. Two grooves along the frustum 17 are fixed on the rotating sleeve 15. The mounting seats 13 are symmetrically distributed along the center line of the central hole 9. Each of the two mounting seats 13 has a clamping block 14 that can move obliquely connected to its opposite side. When the two clamping blocks 14 move downward at the same time, they move closer to each other. When they move upward at the same time, they move away from each other. The mounting seats 13 are equipped with elastic elements 19 for driving the corresponding clamping blocks 14 to move upward. Rollers 18 are installed on the opposite sides of the two clamping blocks 14. The axles of the rollers 18 extend horizontally. The screw sleeve 8 is located above the two clamping blocks 14, so that it can drive the two clamping blocks 14 to move downward at the same time. The rotating sleeve 15 is fixedly connected to at least one cleaning plate 11. The cleaning plate 11 is used to drive the rock debris in the shell 1 to the slag discharge port 12 for discharge.
[0028] The working principle and technical advantages of the protective device used in geological exploration drilling are as follows:
[0029] like Figure 6 As shown, during drilling, this protective device is fixed to the ground where the borehole is located, and the drill rod 21 passes through the central hole 9 of the threaded sleeve 8 for drilling operations. During drilling, the drilling mud discharged from the borehole is discharged through the drain port 2 into a pre-set drain path to prevent it from spreading. The rock cuttings brought out by the high-speed rotation of the drill rod 21 accumulate inside the shell 1 and do not splash around, thus achieving a good protective effect, avoiding personal injury to the workers, preventing damage to the working environment, and further ensuring operational safety.
[0030] like Figures 4 to 6As shown, when there is a large amount of rock debris accumulated inside the shell 1, rotating the screw sleeve 8 drives the two clamping blocks 14 to move downwards. The two clamping blocks 14 clamp the drill rod 21, causing the rotating sleeve 15 to rotate synchronously with the drill rod 21. Thus, driven by the drill rod 21, the cleaning plate 11 rotates along the ground inside the shell 1, driving the rock debris inside the shell 1 to move. When the rock debris passes through the slag discharge port 12, it moves into the slag pan 7 under the action of centrifugal force for subsequent centralized cleaning. After the cleaning work is completed, rotating the screw sleeve 8 moves upwards, and the two clamping blocks 14 move upwards under the drive of the elastic element 19, thereby disengaging from the drill rod 21. The rotating sleeve 15 no longer rotates with the drill rod 21. In the above cleaning process, the rock debris is cleaned by the rotation of the cleaning plate 11, which is efficient, convenient, and saves manpower. At the same time, the operation of the cleaning plate 11 is powered by the drill rod 21, so there is no need to configure an additional power unit. This makes the structure of this protective device simple, compact, and inexpensive to manufacture, and highly feasible.
[0031] like Figures 4 to 6 As shown, when the protective device for geological exploration drilling cleans up rock cuttings, the clamping block 14 clamps the drill rod 21 via the roller 18, allowing the drill rod 21 to still move vertically and drill downwards normally without interrupting the drilling operation. This ensures drilling efficiency and avoids impact damage to the protective device caused by the axial vibration of the drill rod 21, thus extending the service life of the protective device for geological exploration drilling.
[0032] like Figure 4 , Figure 5 As shown, in a further embodiment, an inclined sliding groove 20 is provided on the mounting base 13, and the clamping block 14 is slidably installed on the sliding groove 20. Under the limiting action of the sliding groove 20, the clamping block 14 can move obliquely; the elastic element 19 can be a sheet or a spring, and the two ends of the elastic element 19 are in contact with the mounting base 13 and the clamping block 14 respectively; the top of the housing 1 and the frustum base 17 are integrally structured to ensure structural strength.
[0033] In a further embodiment, the cleaning plate 11 adopts a hollow structure, which can effectively filter out the mud when cleaning rock debris, thereby cleaning the rock debris separately; a filter screen 3 is installed on the drain port 2 to prevent the rock debris in the shell 1 from being discharged through the drain port 2 and causing blockage of the drain path; the drain port 2 and the slag discharge port 12 are distributed on opposite sides of the shell 1, making it easier to separate the mud and rock debris and discharge them separately.
[0034] like Figure 4 , Figure 6As shown, in a further embodiment, a push ring 16 is rotatably connected to the lower end of the threaded sleeve 8. When the threaded sleeve 8 moves downward, the push ring 16 applies a thrust to the two clamping blocks 14. Thus, when the rotating sleeve 15 rotates, the push ring 16 can rotate synchronously with the clamping blocks 14, avoiding direct contact between the clamping blocks 14 and the lower end of the threaded sleeve 8, which would generate excessive frictional resistance and aggravate wear. The push ring 16 and the threaded sleeve 8 can be connected by a thrust bearing to reduce the rotational resistance of both.
[0035] like Figure 1 , Figure 2 As shown, in a further embodiment, the lower end of the housing 1 is provided with outwardly extending edges 5 to increase the contact area between the housing 1 and the ground, thereby improving the installation stability of the housing 1. During installation, rubber pads can be placed on the underside of the edges 5 as needed to improve the contact stability and tightness between the housing 1 and the ground. When using this protective device for geological exploration drilling, the housing 1 can be stably installed on the ground by placing a counterweight on top of it; in addition, to improve the stability and convenience of installation of the protective device for geological exploration drilling, several ground spikes 6 are provided on the edges 5 to improve the connection stability between the housing 1 and the ground.
[0036] like Figure 1 , Figure 2 As shown, in a further embodiment, the upper end of the threaded sleeve 8 is provided with a screwing part 10 to facilitate the rotation of the threaded sleeve 8. According to actual needs, the screwing part 10 can adopt a handle-type structure, such as a horizontally extending handle, so that the operator can easily and effortlessly drive the threaded sleeve 8 to rotate by holding the handle. In addition, in order to ensure the simplicity of the structure above the housing 1, the screwing part 10 can also be designed as a structure that can cooperate with other tools, such as an external hexagonal part or a tool socket, so that the threaded sleeve 8 can be driven to rotate by tools such as wrenches.
[0037] like Figure 3 , Figure 4 As shown, in a further embodiment, there are two cleaning plates 11, which are fixedly connected to the rotating sleeve 15 via two mounting seats 13 respectively. When cleaning the rock debris inside the shell 1, the two cleaning plates 11 work simultaneously, which can achieve a better cleaning effect. In addition, since the cleaning plates 11 are fixedly connected to the rotating sleeve 15 via the mounting seats 13, the two cleaning plates 11 are symmetrically distributed, which makes the force on the mounting seats 13, the clamping blocks 14 and the rotating sleeve 15 more balanced, and improves the stability of operation.
Claims
1. A protective device for geological exploration drilling, comprising a disc-shaped shell, characterized in that: The shell has a liquid discharge port and a slag discharge port on its side wall. A slag tray is fixed on the outside of the shell. A frustum base is fixed at the center of the top of the shell. A threaded hole is opened on the frustum base, and a threaded sleeve is installed in the threaded hole. The threaded sleeve has a central hole. A rotating sleeve is rotatably connected to the frustum base. Two mounting seats are fixed on the rotating sleeve. Clamping blocks are movably connected to the opposite sides of the two mounting seats. When the two clamping blocks move downward at the same time, they move towards the middle. An elastic element that drives the clamping blocks to move upward is installed in the mounting seat. Rollers are installed on the opposite sides of the two clamping blocks. The threaded sleeve is located above the two clamping blocks. At least one cleaning plate is fixedly connected to the rotating sleeve.
2. The protective device for geological exploration drilling according to claim 1, characterized in that: The mounting base has an inclined, extending groove, and the clamping block is slidably mounted on the groove.
3. The protective device for geological exploration drilling according to claim 1, characterized in that: The elastic element is a sheet or a spring, and its two ends are in contact with the mounting seat and the clamping block, respectively.
4. The protective device for geological exploration drilling according to claim 1, characterized in that: The cleaning plate has a hollow structure, and a filter screen is installed on the drain port. The drain port and the slag discharge port are distributed on opposite sides of the shell.
5. The protective device for geological exploration drilling according to claim 1, characterized in that: The lower end of the screw sleeve is rotatably connected to a push ring. When the screw sleeve moves downward, the push ring applies a pushing force to the two clamping blocks.
6. The protective device for geological exploration drilling according to claim 1, characterized in that: The lower end of the shell has an outwardly extending edge around its perimeter, and several ground nails are provided on the edge.
7. The protective device for geological exploration drilling according to claim 1, characterized in that: The upper end of the threaded sleeve is provided with a screwing part.
8. The protective device for geological exploration drilling according to claim 1, characterized in that: The material clearing plate is provided in two parts, which are fixedly connected to the rotating sleeve via two mounting seats.