A drill rod slip suitable for shallow geothermal drilling construction

Abstract

The utility model discloses a drill rod slip suitable for shallow geothermal drilling construction, including slip base, the first pivot and the second pivot are provided with on the upper surface of slip base along the width direction horizontal parallel, the first limit board is rotatably arranged on the first pivot, the second limit board is rotatably arranged on the second pivot, the first limit board is recessed to form the first semicircle in one end near the second limit board, the second limit board is recessed to form the second semicircle in one end near the first limit board, and the first semicircle and the second semicircle butt joint can form the round through -hole. The slip base includes the first main support rod and the second main support rod that are arranged in parallel, and the first main support rod and the second main support rod are connected through a connecting assembly. The utility model can realize the one -way quick lifting and automatic card stop of drill rod at any position, not only at the joint, can reduce the labor intensity of worker, improve mechanization and degree of automation, promote drill rod operation efficiency, effectively improve the operation safety level, and prevent production safety accidents.

Description

Technical Field

[0001] This utility model belongs to the field of shallow geothermal energy development and utilization technology, and relates to a drill rod slip suitable for shallow geothermal drilling construction. Background Technology

[0002] Shallow geothermal energy refers to geothermal resources buried at a depth of less than 200 meters that are at approximately a constant temperature, resulting from the combined effects of solar radiation and geothermal heat flow from deep within the Earth. The development and utilization of shallow geothermal energy, leveraging mature heat pump and buried pipe technologies, enables heat extraction from the soil in winter and heat release back to the soil in summer, and has been widely adopted in building energy supply.

[0003] Shallow geothermal buried pipe heat exchange holes are generally no more than 200m deep, while some small and old drilling rigs used in existing underground drilling operations have been in service for more than 5 or even 10 years. Their drill rod disassembly operations are still manual and have not yet achieved full mechanization and automation. During drill rod lifting and disassembly, U-shaped steel plates are often used to stop and suspend the drill rod inside the hole. Specifically, this involves inserting a U-shaped open steel plate at the drill rod coupling to stop, disassembling, removing the U-shaped open steel plate, and lifting the drill rod. The drawbacks are: the stop position of the slips is limited to the drill rod coupling, i.e., the enlarged protruding part of the drill rod; the opening of the slips is prone to wear and deformation after a period of use, leading to the risk of slippage during drilling stop; after disassembling this section of the drill rod, the slips must be manually removed before lifting the remaining drill rod. This means that during the lifting process, operators need to frequently bend over to insert and remove slips, greatly affecting the continuity of drilling stop and lifting operations and reducing drilling efficiency, which urgently needs improvement. Utility Model Content

[0004] In view of the defects and deficiencies in the existing technology, this utility model provides a drill rod slip suitable for shallow geothermal drilling construction, so as to solve the problem of low efficiency in the existing drill rod lifting and disassembly process that relies on manual insertion and extraction of slips.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A drill rod slip suitable for shallow geothermal drilling construction includes a slip base. A first rotating shaft and a second rotating shaft are horizontally parallel to each other along the width direction on the upper surface of the slip base. A first limiting plate is rotatably mounted on the first rotating shaft, and a second limiting plate is rotatably mounted on the second rotating shaft. The end of the first limiting plate near the second limiting plate is recessed to form a first semicircle, and the end of the second limiting plate near the first limiting plate is recessed to form a second semicircle. The first semicircle and the second semicircle can be joined to form a circular through hole.

[0006] This utility model also has the following technical features: Specifically, the cladding base includes a first main support rod and a second main support rod arranged in parallel, and the first main support rod and the second main support rod are connected by a connecting assembly.

[0007] Furthermore, the connecting component includes a first connecting cross brace and a second connecting cross brace, the first connecting cross brace and the second connecting cross brace are arranged in parallel, and the two ends of the first connecting cross brace are respectively perpendicularly connected to the first main support rod and the second main support rod.

[0008] Furthermore, the diameter of the through hole gradually increases from the end away from the base of the slip to the end closer to the base of the slip.

[0009] Furthermore, a first fixing block is provided on the first main support rod, and a second fixing block is provided on the second main support rod, with the first fixing block and the second fixing block being arranged opposite to each other; a first mounting hole is provided on the first fixing block, and a second mounting hole is provided on the second fixing block, with both ends of the first rotating shaft passing through the first mounting hole and the second mounting hole respectively.

[0010] Furthermore, a third fixing block is provided on the first main support rod, and a fourth fixing block is provided on the second main support rod. The third fixing block and the fourth fixing block are arranged opposite to each other. A third mounting hole is provided on the third fixing block, and a fourth mounting hole is provided on the fourth fixing block. The two ends of the second rotating shaft pass through the third mounting hole and the fourth mounting hole, respectively.

[0011] Furthermore, the first and second main support rods are the same length, both being 500-600mm.

[0012] Furthermore, the first and second limiting plates have the same dimensions, with a length of 160~180mm, a width of 145~155mm, and a thickness of 4~6mm.

[0013] Furthermore, the diameter of the end of the through hole furthest from the slip base is smaller than the diameter of the drill rod.

[0014] Compared with the prior art, the beneficial technical effects of this utility model are: This utility model, through its structural design, especially the rotating first and second limiting plates, enables the drill rod to be rapidly lifted and automatically stopped in any position, not just at the coupling. This reduces the labor intensity of on-site workers, increases the degree of mechanization and automation, greatly improves the efficiency of drill rod operation, effectively enhances operational safety, and prevents production safety accidents. This utility model has a simple structure, is easy to use, and is worthy of promotion. Attached Figure Description

[0015] Figure 1This is a top view of the present invention; Figure 2 This is a front view schematic diagram of the present invention; Figure 3 This is a left-side view of the present invention; Figure 4 This is a three-dimensional schematic diagram of the present invention; Figure 5 This is a schematic diagram illustrating the use of this utility model.

[0016] The labels in the diagram represent: 1-Card base, 2-First rotating shaft, 3-Second rotating shaft, 4-First limiting plate, 5-Second limiting plate, 6-First fixing block, 7-Second fixing block, 8-Third fixing block, 9-Fourth fixing block; 101-First main support rod, 102-First and second main support rods, 103-Connecting assembly; 401-First semicircle; 501-Second semicircle; 1031-First connecting cross brace, 1032-Second connecting cross brace. Detailed Implementation

[0017] Following the above technical solution, specific embodiments of this utility model are given below. It should be noted that this utility model is not limited to the following specific embodiments, and all equivalent modifications made based on the technical solution of this application fall within the protection scope of this utility model. The utility model will be further described in detail below with reference to the embodiments.

[0018] In the description of the orientation of this utility model, the terms "up", "down", "front", "back", "left", "right", etc., indicate the orientation or positional relationship only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Unless otherwise stated, the terms "installed," "connected," "joined," and "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components or an interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] It should be noted that, unless otherwise specified, all components in this utility model are components known in the art.

[0021] Example 1 Following the above technical solutions, such as Figures 1 to 4 As shown, this embodiment provides a drill rod slip suitable for shallow geothermal drilling construction, including a slip base 1. A first rotating shaft 2 and a second rotating shaft 3 are horizontally parallel to each other along the width direction on the upper surface of the slip base 1. A first limiting plate 4 is rotatably mounted on the first rotating shaft 2, and a second limiting plate 5 is rotatably mounted on the second rotating shaft 3. The end of the first limiting plate 4 near the second limiting plate 5 is recessed to form a first semicircle 401, and the end of the second limiting plate 5 near the first limiting plate 4 is recessed to form a second semicircle 501. The first semicircle 401 and the second semicircle 501 can be joined to form a circular through hole.

[0022] In a preferred embodiment, the diameter of the through hole gradually widens from the end furthest from the slip base 1 to the end closest to the slip base 1; the diameter of the through hole furthest from the slip base 1 is smaller than the diameter of the drill rod. That is, the upper end of the through hole is the small diameter end, and the lower end is the large diameter end, with the diameter of the large diameter end being 1~2mm larger than the actual diameter of the drill rod.

[0023] The base of the clasp can be made of materials such as I-beams or channel steel.

[0024] As a preferred embodiment, the cladding base 1 includes a first main support rod 101 and a second main support rod 102 arranged in parallel, and the first main support rod 101 and the second main support rod 102 are connected by a connecting component 103.

[0025] As a preferred embodiment, the connecting component 103 includes a first connecting cross brace 1031 and a second connecting cross brace 1032. The first connecting cross brace 1031 and the second connecting cross brace 1032 are arranged in parallel, and the two ends of the first connecting cross brace 1031 are perpendicularly connected to the first main support rod 101 and the second main support rod 102, respectively; the two ends of the second connecting cross brace 1032 are perpendicularly connected to the first main support rod 101 and the second main support rod 102, respectively.

[0026] As a preferred embodiment, a first fixing block 6 is provided on the first main support rod 101, and a second fixing block 7 is provided on the second main support rod 102. The first fixing block 6 and the second fixing block 7 are arranged opposite to each other (in a mirror image symmetrical manner). A first mounting hole is provided on the first fixing block 6, and a second mounting hole is provided on the second fixing block 7. The two ends of the first rotating shaft 2 are respectively inserted into the first mounting hole and the second mounting hole.

[0027] As a preferred embodiment, a third fixing block 8 is also provided on the first main support rod 101, and a fourth fixing block 9 is also provided on the second main support rod 102. The third fixing block 8 and the fourth fixing block 9 are arranged opposite to each other (in a mirror image symmetrical). A third mounting hole is opened on the third fixing block 8, and a fourth mounting hole is opened on the fourth fixing block 9. The two ends of the second rotating shaft 3 are respectively inserted into the third mounting hole and the fourth mounting hole.

[0028] As a preferred embodiment, the first main support rod 101 and the second main support rod 102 have the same length, both being 500~600mm.

[0029] As a preferred embodiment, the first limiting plate 4 and the second limiting plate 5 have the same dimensions, with a length of 160~180mm, a width of 145~155mm, and a thickness of 4~6mm.

[0030] The usage process of this utility model is as follows: Before drilling begins, the drill rod slip is placed on the drilling platform of the drilling rig, and the center of the drill rod slip is aligned with the center of the hole. The first limiting plate 4 and the second limiting plate 5 are opened, and the drill rod is lowered in to achieve free drilling and lowering of the drill rod. like Figure 5 As shown, when the drill rod is lifted after drilling is completed, the lifting process will cause the first limiting plate 4 and the second limiting plate 5 to rotate, so that the first limiting plate 4 and the second limiting plate 5 tilt and abut against the drill rod. The inner walls of the first semicircle 401 and the second semicircle 501 can contact the outer wall of the drill rod. When the lifting action stops, the first limiting plate 4 and the second limiting plate 5 can limit the drill rod and stop it, thereby realizing the rapid stopping of the drill rod at any position in the lifting direction.

[0031] The dimensions of the slip base 1 and the rotation limit plate can be adjusted according to the workers' working habits and the size of the drilling platform to ensure that the drill pipe slips are placed stably and the force is balanced, and that they have sufficient strength, rigidity and load-bearing capacity to meet the requirements of quickly suspending the drill string when connecting and disconnecting the drill pipe.

[0032] The above-described implementation process is merely an example to clearly illustrate this application and is not intended to limit the implementation methods. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementation methods here. However, obvious variations or modifications derived therefrom are still within the protection scope of this application.

Claims

1. A drill rod slip suitable for shallow geothermal drilling, characterized in that, The device includes a base (1), on which a first rotating shaft (2) and a second rotating shaft (3) are horizontally parallel along the width direction on the upper surface of the base (1). A first limiting plate (4) is rotatably mounted on the first rotating shaft (2), and a second limiting plate (5) is rotatably mounted on the second rotating shaft (3). The first limiting plate (4) is recessed at one end near the second limiting plate (5) to form a first semicircle (401), and the second limiting plate (5) is recessed at one end near the first limiting plate (4) to form a second semicircle (501). The first semicircle (401) and the second semicircle (501) can form a circular through hole by connecting them.

2. The drill rod slips for shallow geothermal drilling as described in claim 1, characterized in that, The base (1) includes a first main support rod (101) and a second main support rod (102) arranged in parallel, and the first main support rod (101) and the second main support rod (102) are connected by a connecting component (103).

3. The drill rod slips for shallow geothermal drilling as described in claim 2, characterized in that, The connecting component (103) includes a first connecting cross brace (1031) and a second connecting cross brace (1032). The first connecting cross brace (1031) and the second connecting cross brace (1032) are arranged in parallel, and the two ends of the first connecting cross brace (1031) are respectively perpendicularly connected to the first main support rod (101) and the second main support rod (102).

4. The drill rod slips for shallow geothermal drilling as described in claim 1, characterized in that, The diameter of the through hole gradually increases from the end away from the base (1) to the end closer to the base (1).

5. The drill rod slips for shallow geothermal drilling as described in claim 2, characterized in that, The first main support rod (101) is provided with a first fixing block (6), and the second main support rod (102) is provided with a second fixing block (7). The first fixing block (6) and the second fixing block (7) are arranged opposite to each other. The first fixing block (6) is provided with a first mounting hole, and the second fixing block (7) is provided with a second mounting hole. The two ends of the first rotating shaft (2) are respectively inserted into the first mounting hole and the second mounting hole.

6. The drill rod slips for shallow geothermal drilling as described in claim 2, characterized in that, The first main support rod (101) is also provided with a third fixing block (8), and the second main support rod (102) is also provided with a fourth fixing block (9). The third fixing block (8) and the fourth fixing block (9) are arranged opposite to each other. The third fixing block (8) is provided with a third mounting hole, and the fourth fixing block (9) is provided with a fourth mounting hole. The two ends of the second rotating shaft (3) are respectively inserted into the third mounting hole and the fourth mounting hole.

7. The drill rod slips for shallow geothermal drilling as described in claim 2, characterized in that, The first main support rod (101) and the second main support rod (102) have the same length, both being 500~600mm.

8. The drill rod slips for shallow geothermal drilling as described in claim 1, characterized in that, The first limiting plate (4) and the second limiting plate (5) have the same dimensions, with a length of 160~180mm, a width of 145~155mm, and a thickness of 4~6mm.

9. The drill rod slips for shallow geothermal drilling as described in claim 1, characterized in that, The diameter of the end of the through hole away from the slip base (1) is smaller than the diameter of the drill rod.

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