A drill core tube outer wall cleaning kit

Abstract

The utility model discloses a kind of drill rig coring pipe outer wall cleaning kits, it is related to drill rig coring pipe cleaning technical field, including supporting assembly, cleaning assembly, fixed assembly;Supporting assembly includes multiple sets of supporting piece mutually hinged, clamping portion;Cleaning assembly includes with multiple sets of clamping piece, multiple sets of flexible cleaning piece, elastic fixing piece, elastic cleaning piece;Fixed assembly includes fixing piece, locking piece;Through the supporting piece and flexible cleaning piece of setting, through increasing or reducing supporting piece, it can be quickly adapted to the coring pipe of any pipe diameter in 2-5m range, without replacing whole set of mechanism, can be quickly completed installation or disassembly, elastic fixing piece and elastic cleaning piece wear resistance and aging resistance, whole life of promotion body, elastic cleaning piece scraping realizes 360 ° dead corner soil, improve pipe cleaning efficiency, and the soil of peeling automatically downward discharge, avoid secondary attachment, and mast slide seat outer hanging plate of drill rig is directly bolted with it can be synchronous lifting with power head, both reduce drill rig load and simplify maintenance management.

Description

Technical Field

[0001] This utility model relates to the field of drilling rig coring tube cleaning technology, specifically to a drilling rig coring tube outer wall cleaning kit. Background Technology

[0002] When large soil drilling rigs are drilling and sampling, a large amount of soil will inevitably adhere to the outer wall of the core tube. If this soil is not cleaned in time, it will have many adverse effects on the subsequent drilling and sampling work. On the one hand, it will reduce the accuracy of drilling and sampling, because too much soil may interfere with the judgment of the sample. On the other hand, it will affect the work efficiency and increase the load on the drilling rig. In addition, long-term accumulated soil may also cause wear and tear on the core tube and shorten its service life.

[0003] Existing cleaning devices often only match core tubes of a fixed diameter. Once the tube diameter changes, the entire clamping and scraping mechanism needs to be replaced. This lack of versatility means that special modules must be purchased and stored separately for different pipe sizes, which increases procurement costs and adds to the maintenance and management burden. Utility Model Content

[0004] The main objective of this invention is to provide a cleaning kit for the outer wall of a core tube in a drilling rig, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a drilling rig coring tube outer wall cleaning kit, comprising:

[0006] The support assembly includes multiple sets of support members that are hinged to each other, with adjacent support members connected at their ends to form a ring structure; each support member has a connecting seat and a positioning hole at both ends, and a snap-fit ​​part on the inner wall of the support member; the connecting seat is detachably connected to an external drilling rig.

[0007] The cleaning assembly includes multiple sets of snap-fit ​​components detachably connected to the snap-fit ​​portion, and multiple sets of flexible cleaning components disposed on the snap-fit ​​components; the snap-fit ​​components have elastic fixing components on their inner walls; the elastic fixing components have elastic cleaning components inside them;

[0008] The fixing component includes a detachable fixing member disposed outside multiple sets of support members and a locking member disposed on the fixing member; the locking member tightens the fixing member under the action of external force to fix the relative position between the multiple sets of support members.

[0009] As a further improvement of this utility model, the support member includes a support arc plate; the two sides of the support arc plate are respectively provided with mutually hinged protrusions and grooves, and adjacent support arc plates are hinged to each other through protrusions and grooves.

[0010] As a further improvement of this utility model, the connecting seat and the positioning hole are respectively located at both ends of the supporting arc plate; the connecting seat is arranged perpendicularly to the supporting arc plate, and the connecting seat is provided with a connecting hole.

[0011] As a further improvement of this utility model, the snap-fit ​​part includes a snap-fit ​​groove provided on the inner wall of the supporting arc plate; the outer wall of the supporting arc plate is provided with a fixing groove along the circumferential direction.

[0012] As a further improvement of this utility model, the snap-fit ​​component includes a snap-fit ​​sliding plate and a positioning plate disposed at the end of the snap-fit ​​sliding plate; the snap-fit ​​arc plate is movably connected to the snap-fit ​​groove; the positioning plate is provided with a through hole; a locking stud is provided in the through hole; and the locking stud is threadedly connected to the positioning hole.

[0013] As a further improvement of this utility model, the flexible cleaning component includes a flexible spiral strip; the two ends of the flexible spiral strip are fixedly connected to two adjacent sets of supporting arc strips.

[0014] As a further improvement of this utility model, the elastic fixing member includes a rubber collar; the rubber collar is fixedly connected to multiple sets of snap-fit ​​sliding plates; the elastic cleaning member includes a rubber ring disposed inside the rubber collar; the rubber ring is fixed in a spiral shape on the inner wall of the rubber collar.

[0015] As a further improvement of this utility model, the fixing member includes a clamp; the clamp is located in a fixing groove; the locking member includes a locking bolt disposed on the clamp.

[0016] The beneficial effects of this utility model are reflected in:

[0017] With its designed support components and flexible cleaning components, the system can quickly adapt to coring pipes of any diameter within a 2-5m range by adding or removing support components, without replacing the entire mechanism. This significantly reduces procurement and inventory costs. The modular splicing structure, combined with the quick-connect design, allows for rapid installation or disassembly, greatly saving downtime. It ensures long-term stability under high pressure and strong vibration conditions without deformation. The elastic fixing and cleaning components are wear-resistant and aging-resistant, extending the overall lifespan of the system. The elastic cleaning components scrape away soil from every angle, improving cleaning efficiency. The detached soil is automatically discharged downwards, preventing secondary adhesion and reducing the overall weight of the kit. It can be directly bolted to the mast slide plate of the drilling rig and rises and falls synchronously with the power head without additional power, reducing the load on the drilling rig and simplifying maintenance and management. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a drilling rig coring tube outer wall cleaning kit according to the present invention;

[0019] Figure 2This is a schematic diagram of the overall structure of the support component of the drilling rig core tube outer wall cleaning kit of this utility model;

[0020] Figure 3 This is a schematic diagram of the supporting arc plate structure of a drilling rig core tube outer wall cleaning kit according to the present invention;

[0021] Figure 4 This is a schematic diagram of the cleaning component structure of a drilling rig coring tube outer wall cleaning kit according to the present invention;

[0022] Figure 5 This is a schematic diagram of the rubber ring structure of a core tube outer wall cleaning kit for drilling rigs according to this utility model;

[0023] Figure 6 This is a schematic diagram of the fixing component structure of a drilling rig core tube outer wall cleaning kit according to the present invention;

[0024] Figure 7 This utility model relates to a cleaning kit for the outer wall of a drilling rig coring tube. Figure 2 Enlarged structural diagram at point A;

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Support component; 101. Support arc plate; 102. Protruding column; 103. Column groove; 2. Connecting seat; 3. Positioning hole; 4. Snap-fit ​​part; 401. Snap-fit ​​groove; 5. Snap-fit ​​component; 501. Snap-fit ​​sliding plate; 502. Positioning plate; 503. Through hole; 6. Flexible cleaning component; 601. Flexible spiral strip; 7. Elastic fixing component; 701. Rubber collar; 8. Elastic cleaning component; 801. Rubber ring; 9. Fixing component; 901. Clamp; 10. Locking component; 1001. Locking bolt; 11. Connecting hole; 12. Fixing groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] In one embodiment, see Figure 1 The present invention relates to a drilling rig core tube outer wall cleaning kit, comprising a support component, a cleaning component, and a fixing component.

[0029] The support assembly includes multiple sets of support members 1 that are hinged to each other. Adjacent support members 1 are connected end to end to form a ring structure. Each end of the support member 1 is provided with a connecting seat 2 and a positioning hole 3. The inner wall of the support member 1 is provided with a snap-fit ​​part 4. The connecting seat 2 is detachably connected to an external drilling rig. The cleaning assembly includes multiple sets of snap-fit ​​parts 5 that are detachably connected to the snap-fit ​​part 4, and multiple sets of flexible cleaning parts 6 provided on the snap-fit ​​parts 5. The inner wall of the snap-fit ​​parts 5 is provided with an elastic fixing part 7, and the interior of the elastic fixing part 7 is provided with an elastic cleaning part 8. The fixing assembly includes a detachable fixing part 9 provided outside the multiple sets of support members 1, and a locking part 10 provided on the fixing part 9. The locking part 10 tightens the fixing part 9 under the action of external force to fix the relative position between the multiple sets of support members 1.

[0030] Further, see Figure 1 , 2 3, 7, The support member 1 includes a support arc plate 101. The two sides of the support arc plate 101 are respectively provided with a protruding post 102 and a column groove 103 that are hinged to each other. Adjacent support arc plates are hinged to each other through the protruding post 102 and the column groove 103.

[0031] Preferably, the protruding post 102 is cylindrical, and one-quarter of the volume of the protruding post 102 is fixedly connected to the arc surface of the supporting arc plate 101. With the above arrangement, the cylindrical protruding post 102 and the arc surface are integrally cast, which not only ensures that the protruding post 102 is not easy to break when subjected to torsional force, but also avoids local embrittlement caused by welding, so that the assembled ring frame maintains structural integrity under high pressure vibration.

[0032] Preferably, the groove 103 is formed by cutting off one-third of a hollow cylinder. The protruding post 102 on the adjacent support arc plate 101 is inserted into the inside of the groove 103. One-fifth of the volume of the protruding post 102 is outside the groove 103. With the above arrangement, the exposed 1 / 5 volume of the protruding post 102 forms a "movable hinge", which allows the groove 103 and the protruding post 102 to generate adaptive micro-rotation when the support arc plate 101 is flipped and spliced, reducing the assembly resistance and avoiding rigid jamming. At the same time, the retained insertion depth of 4 / 5 of the volume ensures the lateral shear strength, taking into account both flexibility and stability.

[0033] Further, see Figure 1 , 3 The connecting seat 2 and the positioning hole 3 are located at both ends of the supporting arc plate 101, respectively. The connecting seat 2 is perpendicular to the supporting arc plate 101, and the connecting seat 2 is provided with a connecting hole 11.

[0034] Preferably, the connecting seat 2 is located in the middle of the outer wall of the supporting arc plate 101. The connecting seat 2 is connected and fixed to the mast slide plate of the external drilling machine by bolts passing through the connecting hole 11. A reserved screw hole can be opened on the drilling machine, and it moves up and down with the drilling machine mast or power head to ensure that the core tube passes through the cleaning kit throughout the drilling and lifting process, thereby completing the fixation.

[0035] Further, see Figure 1 , 3 The snap-fit ​​part 4 includes a snap-fit ​​groove 401 provided on the inner wall of the support arc plate 101, and a fixing groove 12 is provided on the outer wall of the support arc plate 101 along the circumferential direction.

[0036] Preferably, the snap-fit ​​groove 401 is dovetail-shaped and is located in the middle of the supporting arc plate 101.

[0037] Further, see Figure 1 , 4 The snap-fit ​​component 5 includes a snap-fit ​​slide plate 501 and a positioning plate 502 disposed at the end of the snap-fit ​​slide plate 501. The snap-fit ​​arc plate is movably connected to the snap-fit ​​groove 401. The positioning plate 502 is provided with a through hole 503, and a locking stud is provided in the through hole 503. The locking stud is threadedly connected to the positioning hole 3.

[0038] Preferably, the snap-fit ​​slide plate 501 is a dovetail-shaped plate. The snap-fit ​​slide plate 501 is inserted into the snap-fit ​​groove 401. The dovetail structure restricts the degree of freedom of the snap-fit ​​arc plate, so that the snap-fit ​​slide plate 501 can only slide along the axial direction. The locking stud passes through the through hole 503 and is threadedly connected to the positioning hole 3, thereby stably connecting the positioning plate 502 and the supporting arc plate 101, thereby restricting the degree of freedom of the snap-fit ​​slide plate 501 in the axial direction, and thus connecting the snap-fit ​​slide plate 501 to the snap-fit ​​groove 401.

[0039] Further, see Figure 1 , 4 The flexible cleaning component 6 includes a flexible spiral strip 601, the two ends of which are fixedly connected to two adjacent sets of support arc strips.

[0040] Preferably, the flexible spiral strip 601 is made of elastic steel, and the shape of the flexible spiral strip 601 is an arc-shaped spiral structure, with multiple flexible spiral strips 601 forming a circular structure.

[0041] Further, see Figure 1 , 4 5. The elastic fastener 7 includes a rubber collar 701, which is fixedly connected to multiple sets of snap-fit ​​sliding plates 501; the elastic cleaning element 8 includes a rubber ring 801 disposed inside the rubber collar 701, which is fixed in a spiral shape on the inner wall of the rubber collar 701.

[0042] Preferably, the inner wall of the snap-fit ​​slide plate 501 is provided with a connecting screw hole, and the rubber sleeve 701 and the rubber ring 801 are provided with a limiting hole. The rubber sleeve 701 is connected to the snap-fit ​​slide plate 501 by passing a bolt through the limiting hole and connecting screw hole.

[0043] Preferably, both rubber ring 701 and rubber ring 801 are made of rubber to prevent axial slippage of rubber ring 701 under vibration conditions.

[0044] With the above configuration, the flexible spiral strip 601 and the rubber ring 801 form a "rigid-flexible collaborative scraping system". The combination of the flexible spiral strip 601 and the rubber ring 801 applies cutting force to the hardened soil and avoids scratching the surface of the core tube through elastic yielding, thus achieving efficient and damage-free cleaning.

[0045] The four corners at both ends of the support arc plate 101 are all arc-shaped chamfered structures. Through the above-mentioned settings, the arc structure allows the support arc plate 101 to naturally form a continuous ring during splicing, reducing stress concentration. The chamfer design avoids sharp corners from scratching operators or rubber sleeves 701 during assembly, while eliminating potential scratches on the surface of the core tube by the edges, thus improving operational safety and component life.

[0046] Further, see Figure 1 , 6 The fastener 9 includes a clamp 901 located in the fixing groove 12; the locking element 10 includes a locking bolt 1001 disposed on the clamp 901.

[0047] Preferably, the clamp 901 is made of metal steel strip. The clamp 901 is an existing structure. The clamp 901 is sleeved inside the fixing groove 12. With the above setting, the fixing groove 12 is connected to the clamp 901. The annular frame can be temporarily fixed before the locking bolt 1001 is pre-tightened, which prevents the supporting arc plate 101 from loosening and falling off during the assembly process. The radial pressure of the clamp 901 is evenly distributed, avoiding local bolt overtightening that could cause deformation of the supporting arc plate 101 and improving the overall roundness accuracy.

[0048] Work process;

[0049] Component Introduction: The support arc plate 101 is made of high-strength alloy material with a thickness of 5-8mm. This material has good wear resistance and strength, and can withstand the pressure and friction generated during the cleaning process, effectively extending its service life. During use, reinforcing ribs can be welded to the outside of the support arc plate 101. The reinforcing ribs are triangular and 3-5mm high. Their function is to enhance the compressive strength of the metal sheet and make the entire metal ring frame more stable during operation. The rubber ring 701 is made of wear-resistant rubber with a hardness of 60-70 Shore A and a thickness of 10-15mm. The spiral rubber ring 801 has a texture height of 2-3mm and a pitch of 10-15mm. This spiral cleaning texture design can more effectively scrape the soil off the outer wall of the core tube when the core tube moves up and down.

[0050] When adjusting the diameter of the cleaning device according to the diameter of the core tube, increasing the number of supporting arc plates 101 results in a wider applicable core tube diameter. The number of supporting arc plates 101 is adjusted to match the corresponding diameter core tube. When multiple supporting arc plates 101 are installed, the groove 103 of one supporting arc plate 101 is slidably engaged with the protrusion 102 of another supporting arc plate 101, connecting the two supporting arc plates 101. When the required number of supporting arc plates 101 is less than one, the multiple supporting arc plates 101 are folded over. During this process, the protrusion 102 rotates inside the groove 103 until the supporting arc plates 101 at both ends are close together. Then, the last supporting arc plate 101 is inserted and slidably engaged with the supporting arc plates 101 at both ends, thus forming a ring structure with multiple supporting arc plates 101. The sliding plate 501 is installed and inserted into the snap-fit ​​slot 401. The distribution spacing of multiple snap-fit ​​sliding plates 501 is as equal as possible. As multiple snap-fit ​​sliding plates 501 are gradually installed into the snap-fit ​​slot 401, the rubber collar 701 and the flexible spiral strip 601 are stretched. The rubber collar 701 and the flexible spiral strip 601 have deformation capabilities. The flexible spiral strip 601 moves the soil that is difficult to clean and adheres to the outer wall of the core tube, preventing soil accumulation on the outside of the core tube. It can be used for core tubes of various specifications. The positioning plate 502 and the support arc plate 101 are fixed with locking studs. Finally, the fixing seat is fixed to the mast slide plate of the drilling rig with bolts. A reserved screw hole can be opened on the drilling rig. It moves up and down with the drilling rig mast or power head to ensure that the core tube passes through the cleaning kit throughout the drilling and lifting process, thereby completing the fixing.

[0051] When cleaning the core sample tube;

[0052] 1. The rubber rings 701 and 801 are elastic. Under the clamping action of the supporting arc plate 101, the spiral rubber ring 801 is compressed by 1-2mm, forming a "pre-tightening clamping force" on the outer wall of the core tube. This pre-tightening force ensures that the rubber ring 801 always maintains a 360° gapless fit with the tube wall. No matter how the tube diameter changes within the allowable range, it can ensure that the scraping action does not "leak".

[0053] 2. The spiral cleaning grooves with a height of 2-3mm and a pitch of 10-15mm protruding on the inner wall of the rubber ring 801 form a continuous "threaded blade" on the tube wall. When the core tube moves up and down, the downward movement: the "sliding surface" of the spiral groove "pushes" the attached soil downward along the spiral groove, similar to the screw discharging soil; the upward movement: the "upper scraping surface" of the spiral groove performs a secondary cutting on the remaining soil to ensure complete removal.

[0054] Third, after the soil is "cut" by the spiral pattern, it is automatically discharged downward along the channel formed by the pitch and falls to the wellhead or soil collection plate under the action of gravity. It will not accumulate inside the kit. The connection structure between the rubber ring 701 and the supporting arc plate 101 prevents the rubber ring 801 from rotating due to frictional torque, ensuring that the spiral pattern is always aligned with the pipe wall.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cleaning kit for the outer wall of a core sampling tube in a drilling rig, characterized in that, include: The support assembly includes multiple sets of support members (1) that are hinged to each other, and adjacent support members (1) are connected end to end to form a ring structure; the two ends of the support member (1) are respectively provided with a connecting seat (2) and a positioning hole (3), and the inner wall of the support member (1) is provided with a snap-fit ​​part (4); the connecting seat (2) is detachably connected to an external drilling rig. The cleaning assembly includes multiple sets of snap-fit ​​parts (5) detachably connected to the snap-fit ​​part (4) and multiple sets of flexible cleaning parts (6) disposed on the snap-fit ​​parts (5); the snap-fit ​​parts (5) are provided with elastic fasteners (7) on their inner walls; the elastic fasteners (7) are provided with elastic cleaning parts (8) inside their interiors. The fixing component includes a detachable fixing member (9) disposed outside the multiple sets of support members (1) and a locking member (10) disposed on the fixing member (9); the locking member (10) tightens the fixing member (9) under the action of external force so as to fix the relative position between the multiple sets of support members (1).

2. The drilling rig coring tube outer wall cleaning kit according to claim 1, characterized in that: The support member (1) includes a support arc plate (101); the two sides of the support arc plate (101) are respectively provided with a protruding post (102) and a column groove (103) that are hinged to each other, and adjacent support arc plates are hinged to each other through the protruding post (102) and the column groove (103).

3. The drilling rig coring tube outer wall cleaning kit according to claim 2, characterized in that: The connecting seat (2) and the positioning hole (3) are located at both ends of the supporting arc plate (101); the connecting seat (2) is perpendicular to the supporting arc plate (101), and the connecting seat (2) is provided with a connecting hole (11).

4. The drilling rig coring tube outer wall cleaning kit according to claim 3, characterized in that: The snap-fit ​​part (4) includes a snap-fit ​​groove (401) provided on the inner wall of the support arc plate (101); a fixing groove (12) is provided on the outer wall of the support arc plate (101) along the circumferential direction.

5. The drilling rig coring tube outer wall cleaning kit according to claim 4, characterized in that: The snap-fit ​​component (5) includes a snap-fit ​​sliding plate (501) and a positioning plate (502) disposed at the end of the snap-fit ​​sliding plate (501); the snap-fit ​​sliding plate (501) is movably connected to the snap-fit ​​groove (401); the positioning plate (502) is provided with a through hole (503); a locking stud is provided in the through hole (503); the locking stud is threadedly connected to the positioning hole (3).

6. The drilling rig coring tube outer wall cleaning kit according to claim 5, characterized in that: The flexible cleaning component (6) includes a flexible spiral strip (601); the two ends of the flexible spiral strip (601) are fixedly connected to two adjacent sets of support arc strips.

7. A drilling rig coring tube outer wall cleaning kit according to claim 6, characterized in that: The elastic fastener (7) includes a rubber collar (701); the rubber collar (701) is fixedly connected to multiple sets of snap-fit ​​sliding plates (501); the elastic cleaning component (8) includes a rubber ring (801) disposed inside the rubber collar (701); the rubber ring (801) is fixed in a spiral shape on the inner wall of the rubber collar (701).

8. A drilling rig coring tube outer wall cleaning kit according to claim 7, characterized in that: The fastener (9) includes a clamp (901); the clamp (901) is located in the fixing groove (12); the locking element (10) includes a locking bolt (1001) provided on the clamp (901).

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