Detachable drilling device applied to surface shallow layer
By using a detachable drill rod structure and limiting device, the problems of low efficiency and difficulty in retrieving drill rods in existing drilling devices are solved, enabling efficient and low-disturbance drilling operations and ensuring the accuracy of ground temperature measurements.
Patent Information
- Application Number
- CN202520490497.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing geothermal measurement drilling devices suffer from low efficiency, significant soil disturbance, and difficulty in retrieving drill rods. In particular, the heat generated by rotary drilling affects the measurement results, and the drill rods are difficult to retrieve after mechanical impact drilling.
The drill rod adopts a detachable drill rod structure. The drill rod body is designed with mortise and tenon joints, and the drill rod can be detached by limiting holes and limiting bolts. It is also equipped with a drill rod cap and a recycling device to simplify the drill rod recycling process.
It achieves efficient drilling, reduces soil disturbance, and the drill rod is easy to retrieve, ensuring the accuracy and efficiency of ground temperature measurement.
Smart Images
Figure CN223854178U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to surface shallow auxiliary drilling technology field, concretely is a kind of split type drilling device applied to surface shallow. BACKGROUND
[0002] Before formation temperature measurement, need to carry out drilling work to target point by drilling device, the drilling mode currently commonly used to assist geothermal measurement has following several types: manual hole digging, percussion drilling, rotary drilling. Among them, manual hole digging is lower than other two drilling methods efficiency, and it is larger to disturb soil layer, and it influences the accuracy of subsequent geothermal measurement work. Rotary drilling is realized to soil drilling by motor through shaft driving helical blade, and it will generate larger heat due to helical blade and soil friction when working, thereby it will influence subsequent geothermal measurement result. Therefore, mechanical percussion drilling shows its superiority, but the main difficulty at present revolves around the problem that it is difficult to recover drill rod device from soil after drilling. Therefore, it is necessary to provide a new type of surface shallow split type drilling device to solve the above technical problems. SUMMARY
[0003] In view of the deficiencies of the prior art, the utility model provides a split type drilling device applied to surface shallow, which solves the problems of the prior art.
[0004] To achieve the above object, the utility model realizes the following technical scheme: a split type drilling device applied to surface shallow, including split type drill rod main body and drill bit, the drill bit is integrally connected with the mortise drill rod, the drill rod main body is connected by internal groove insertion by the tenon drill rod and the mortise drill rod, the female engraved reading is located at the edge of the mortise drill rod according to standard length female engraving, the limit hole is arranged in the position close to the top of the drill rod, the limit hole is fixed by limit bolt, and the auxiliary equipment is provided with drill rod cap and recovery device.
[0005] The drill rod includes: drill bit, mortise drill rod and tenon drill rod.
[0006] The drill rod main body is solid three prism structure, which is divided into split type drill rod by setting mortise and tenon groove inside, the bottom of the drill rod is three prism drill bit, and the drill bit is integrally connected with the mortise drill rod.
[0007] The limit hole is arranged close to the top of the drill rod, and is provided with through-type smooth inner wall circular by the center of the drill rod.
[0008] The limit bolt includes: bolt, gasket and nut.
[0009] Preferably, the inner wall of the tenon drill rod and the mortise drill rod is smooth and fitted design.
[0010] Preferably, the limiting bolt head is designed according to the shape of the drill rod corner, the bolt shank is circular, and the diameter is close to the limiting hole diameter.
[0011] Preferably, the drill rod cap is a shell-shaped design that fits the top of the drill rod.
[0012] Preferably, the recovery device is made of a solid circular rod welded together, and the device bottom circular rod diameter fits the limiting hole diameter.
[0013] The utility model provides a kind of applied to ground surface shallow detachable drilling device.It has the following beneficial effects:The detachable drilling device, using the drill rod main body structure of mortise and tenon insertion, inherits the advantages such as portable, efficient and small disturbance to soil layer of impact drilling, while make up the shortcoming that traditional impact drill rod drilling work is difficult to recover after finishing. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 For the main drill rod structure schematic diagram of the utility model described a kind of applied to ground surface shallow detachable drilling device;
[0015] Figure 2 For the main drill rod profile structure schematic diagram of the utility model described a kind of applied to ground surface shallow detachable drilling device;
[0016] Figure 3-5 For the limiting bolt, recovery device and drill rod cap schematic diagram of the utility model described a kind of applied to ground surface shallow detachable drilling device auxiliary equipment;
[0017] In the figure: 1, drill bit;2, tenon drill rod;3, mortise drill rod;4, female engraved reading;5, limiting hole;6, limiting bolt;7, recovery device;8, drill rod cap. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0019] Embodiment: according to the description attached Figure 1-4It can be known that the application is a detachable drilling device applied to the surface shallow layer, which comprises a drill bit 1 and a drill rod body, the drill rod body is composed of a tenon drill rod 2 and a mortise drill rod 3, a limiting hole 5 is arranged near the top of the drill rod, after the tenon drill rod 2 and the mortise drill rod 3 are inserted and connected, the limiting bolt 6 is inserted through the limiting hole, the gasket 602 is located on the corresponding side plane position of the drill rod body, the nut 603 is tightly screwed on the gasket 602, after the drill rod is assembled, the drill rod cap is buckled on the top of the drill rod, the drill rod is vertically arranged at the target point to perform the hammering drilling operation, and the hammering drill rod is stopped after the observation of the negative engraving reading 4 reaches the specified depth.
[0020] After the drill rod reaches the specified task depth, the limiting bolt 6 is unscrewed, the limiting hole inserting rod of the recycling device 7 is inserted through the limiting hole 5 to recycle the tenon drill rod 2 first, and then the mortise drill rod 3 is recycled, and the drilling operation is completed.
[0021] In the specific implementation process, the tenon drill rod 2 and the mortise drill rod 3 can be uniformly smeared with lubricating oil in the insertion groove before being inserted.
[0022] As a preferred scheme, further, the drill rod cap 8 is made of thick-walled steel to prevent cracking and damage during repeated hammering of the drill rod.
[0023] In the specific implementation process, after the tenon drill rod 2 is extracted by using the recycling device 7, the remaining mortise drill rod 3 in the soil body can be shaken for a period of time to make the contact part of the mortise drill rod 3 with the soil body have pores, reduce the friction between the mortise drill rod 3 and the soil body, and be more beneficial to subsequent extraction by using the recycling device.
[0024] The above is only a preferred specific implementation manner of the application, but the protection scope of the application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the application concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.
Claims
1. A surface shallow application detachable drilling device, characterized in that, Include: The detachable drill rod and recovery device (7), the detachable drill rod is composed of two parts of tenon drill rod (2) and mortise drill rod (3), the mortise drill rod (3) is integrally connected with the drill bit (1), the tenon drill rod (2) and the mortise drill rod (3) are inserted and engaged through the internal groove, the mortise drill rod (3) has female engraved reading (4) on the surface, the detachable drill rod is provided with a limiting hole (5) near the top position, the limiting hole (5) is fixed through the limiting bolt (6), the detachable drill rod is provided with a drill rod cap (8) at the top, and the recovery device (7) recovers the detachable drill rod through the limiting hole (5).
2. The application of claim 1, wherein, The drill bit (1) is integrally connected with the mortise drill rod (3), and the tenon drill rod (2) and the mortise drill rod (3) are integrally inserted and engaged, and the section is a right triangle after being cut.
3. The application of claim 1, wherein, The female engraved reading (4) is engraved on the edge of the mortise drill rod (3) according to the standard length.
4. The application of claim 1, wherein, The limiting hole (5) is adjacent to the top of the drill rod, passes through the center of the drill rod, and the inner wall is smooth.
5. The application of claim 1, wherein, The limiting bolt (6) is composed of a bolt (601), a gasket (602) and a nut (603), the head of the bolt (601) is matched with the shape of the drill rod, the bolt shank is closely matched with the limiting hole (5), and the whole bolt is provided with half thread.
6. The application of claim 1, wherein, The drill rod cap (8) is located at the top of the drill rod, and is closely matched with the tenon drill rod (2) and the mortise drill rod (3) during work.