Temporary hole sealing device for geological exploration

Abstract

The utility model relates to the technical field of drilling exploration equipment, and one embodiment of the utility model provides a temporary hole sealing device for geological exploration, which comprises a top cover and an inner sleeve, the inner sleeve is arranged at the bottom of the top cover, a butt joint assembly is arranged between the top cover and the inner sleeve, an inner support sealing assembly is arranged in the inner sleeve, and a hand lifting assembly is arranged on the top cover. The inner supporting sealing assembly comprises a plurality of side openings, the side openings are formed in the side surface of the inner sleeve by a circle, a supporting sleeve is arranged at the top in the inner sleeve, a plurality of pairs of movable rods are movably connected to the side surface of the supporting sleeve in a sleeving mode, and inner supporting plates are arranged at one ends of the movable rods. According to the technical scheme, the technical problems that in an existing temporary hole sealing device in the prior art, the device is large in weight and difficult to carry, and under the condition that the working environment is severe, the surface of the device is greatly corroded and oxidized, and the surface rusting phenomenon occurs are solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of drilling exploration equipment, in particular, to a temporary hole sealing device for geological exploration. BACKGROUND

[0002] There are various types of temporary hole sealing devices commonly used in geological exploration, and the specific choice depends on the geological conditions and drilling operation requirements. The following are several common temporary hole sealing devices: pipe string packer: a device usually made of rubber, plastic or metal, which can be used to temporarily seal the borehole. It can be delivered to a specific location through the inside of the drill pipe or casing, and then sealed by expanding or clamping, etc. Conduit packer: conduit packer can be used to temporarily seal the conduit in the wellbore, usually used during well completion or workover. It is mainly composed of rubber and metal, and can be sealed by hydraulic pressure or mechanical device. Downhole valve: a temporary sealing device made of metal, used to seal the casing or other pipelines. It can be delivered to a specific location through downhole tools during drilling, and then sealed by closing the valve. Gravel packing: gravel packing is a simple and effective temporary sealing method, especially suitable for drilling processes where large holes or water injection occurs. It usually forms a block by adding gravel or dispersed particles into the wellbore to prevent underground water from flowing in.

[0003] At present, domestic researches mainly focus on the final hole sealing process, and there is little research on temporary hole sealing devices. In the existing temporary hole sealing devices, the device itself is heavy to carry, and in the case of harsh working environment, the surface of the device is corroded and oxidized, and surface rust phenomenon occurs, which reduces the structural strength of the device itself. Long-term use may cause local bending deformation and cause the device to be scrapped. CONTENT OF THE INVENTION

[0004] To overcome the above defects, the embodiments of the present disclosure provide a temporary hole sealing device for geological exploration, which solves the technical problem of the existing temporary hole sealing device in the prior art, that is, the device itself is heavy to carry, and in the case of harsh working environment, the surface of the device is corroded and oxidized, and surface rust phenomenon occurs.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a temporary hole sealing device for geological exploration, comprising:

[0006] a top cover and an inner sleeve, the inner sleeve being arranged at the bottom of the top cover;

[0007] a docking assembly arranged between the top cover and the inner sleeve;

[0008] The inner support closing assembly is arranged in the inner sleeve;

[0009] The hand carrying assembly is arranged on the top cover;

[0010] The inner support closing assembly comprises a plurality of side openings arranged around the side surface of the inner sleeve, a support sleeve arranged on the top of the inner sleeve, a plurality of pairs of movable rods movably sleeved and connected around the side surface of the support sleeve, and an inner support plate arranged at one end of the movable rods.

[0011] As a further technical solution, the movable rods are provided with anti-falling blocks at one end, springs are sleeved on the movable rods, and a fit piece is sleeved outside the inner support plate, and the fit piece is wrapped around the outer part of the inner sleeve.

[0012] As a further technical solution, the docking assembly comprises a circular groove arranged on the bottom surface of the top cover, the inner sleeve is inserted into the circular groove, and a circular hole is arranged on the upper surface of the top cover.

[0013] As a further technical solution, a polygonal plug is arranged on the surface of the top cover, a threaded groove is arranged in the top cover, a bolt is inserted and connected in the circular hole, and the bolt is screwed into the threaded groove.

[0014] As a further technical solution, the hand carrying assembly comprises a top groove arranged on the surface of the top cover, a pair of handles rotatably connected in the top groove through a pin shaft, and a plurality of drainage grooves arranged around the inner side surface of the top groove.

[0015] As a further technical solution, the surface of the fit piece is a tooth-shaped structure, and the outer surface of the inner support plate is fitted with the surface of the fit piece.

[0016] As a further technical solution, the outer end surface of the anti-falling block is an inclined structure.

[0017] As a further technical solution, the inner side surface of the inner support plate is outwardly protruding, and the protruding part of the inner side surface of the inner support plate is smaller in size than the opening size of the side opening.

[0018] The embodiments of the present disclosure have the following beneficial effects:

[0019] 1. In the present disclosure, the side opening provides a moving space for the movable rod, the support sleeve ensures the stable movement of the movable rod, the inner support plate is tightly fitted with the inner wall of the drill hole under the pushing of the spring, plays a supporting and hole sealing role, the anti-falling block prevents the movable rod from falling off, ensures the safety in use, the fit piece with tooth-shaped structure increases the friction force with the inner wall of the drill hole, improves the supporting and anti-skid effect, the assembly effectively prevents the drill hole from collapsing, avoids the entry of external substances, and ensures the smooth progress of the exploration work.

[0020] 2、The docking assembly in the present disclosure has the beneficial effects that the circular groove facilitates the docking of the inner sleeve and the top cover, the polygonal plug prevents the inner sleeve from rotating after being inserted, the stability of connection is enhanced, the bolt and the threaded groove are matched, the inner sleeve is convenient to disassemble and adjust according to the drilling condition, this design makes the device flexible to adapt to different sizes of drilling holes, improves the universality of the device, and the connection is firm, which ensures the stability of the device during the hole sealing process. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. For those skilled in the art, other drawings can be obtained according to the content of the example embodiments of the present disclosure and these drawings without paying creative labor.

[0022] Figure 1 The structural schematic diagram in one embodiment of the present disclosure;

[0023] Figure 2 The axonometric view of the present disclosure;

[0024] Figure 3 The axonometric sectional view of the present disclosure;

[0025] Figure 4 The attachment of the present disclosure; Figure 3 The local enlarged view of part A;

[0026] In the figure: 1, top cover; 2, inner sleeve; 3, inner support sealing assembly; 3-1, side opening; 3-2, support sleeve; 3-3, movable rod; 3-4, inner support plate; 3-5, anti-dropping block; 3-6, spring; 3-7, fit piece; 4, docking assembly; 4-1, circular groove; 4-2, circular hole; 4-3, polygonal plug; 4-4, threaded groove; 4-5, bolt; 5, hand-held assembly; 5-1, top groove; 5-2, handle; 5-3, drainage groove. DETAILED DESCRIPTION

[0027] The present disclosure will be further described in detail below in combination with the drawings and examples. It can be understood that the specific embodiments described here are only used to explain the present disclosure, but not to limit the present disclosure.

[0028] For simplicity and concision of the drawings, only parts related to the disclosure are shown in the drawings, and they do not represent the actual structure of the product. In addition, in order to make the drawings simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is marked. In this document, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0029] In this document, it should be noted that unless otherwise explicitly specified and limited, the terms "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the disclosure can be understood according to the specific circumstances.

[0030] In this disclosure, unless otherwise explicitly specified and limited, "on" or "under" the first feature of the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0031] In the description of the present embodiment, the terms "up", "down", "left", "right" and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0032] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] As Figures 1-4 shown, it shows a temporary hole sealing device for geological exploration in an embodiment of the present disclosure, comprising:

[0034] The top cover 1 and the inner sleeve 2 are arranged at the bottom of the top cover 1;

[0035] The docking assembly 4 is arranged between the top cover 1 and the inner sleeve 2;

[0036] The inner support closing assembly 3 is arranged in the inner sleeve 2.

[0037] The hand carrying assembly 5 is arranged on the top cover 1.

[0038] The inner support closing assembly 3 comprises a plurality of side openings 3-1 arranged around the side surface of the inner sleeve 2, a support sleeve 3-2 arranged at the top of the inner sleeve 2, a plurality of pairs of movable rods 3-3 movably sleeved and connected around the side surface of the support sleeve 3-2, an inner support plate 3-4 arranged at one end of the movable rod 3-3, an anti-falling block 3-5 arranged at one end of the movable rod 3-3, a spring 3-6 sleeved on the movable rod 3-3, and a fit sheet 3-7 sleeved on the outer part of the inner support plate 3-4, which is wrapped around the outer part of the inner sleeve 2.

[0039] In some examples, in the process of geological exploration, effective support and hole sealing of the drill hole is an important link to ensure the smooth progress of the exploration work and guarantee the safety of the construction. Therefore, the inner support closing assembly 3 is designed. The assembly comprises a plurality of side openings 3-1 arranged around the side surface of the inner sleeve 2, which provides a moving space for the movable rod 3-3 and other components. The support sleeve 3-2 arranged at the top of the inner sleeve 2 is a basic support structure for the movable rod 3-3. The plurality of pairs of movable rods 3-3 movably sleeved and connected around the side surface of the support sleeve 3-2 can move around the support sleeve 3-2 as a fulcrum. The inner support plate 3-4 arranged at one end of the movable rod 3-3 is a key component that directly contacts the inner wall of the drill hole and provides support force. When the movable rod 3-3 is extended, the inner support plate 3-4 will closely fit the inner wall of the drill hole, supporting the drill hole and preventing it from collapsing. The anti-falling block 3-5 arranged at one end of the movable rod 3-3 can prevent the movable rod 3-3 from falling out of the support sleeve 3-2, ensuring the stability and safety of the movable rod 3-3 during movement. The spring 3-6 sleeved on the movable rod 3-3 plays a role in elastic support. When it is necessary to apply pressure to the inner support plate 3-4 to make it extend and support, the spring 3-6 is compressed to store elastic potential energy to generate support force to support inside the hole. The fit sheet 3-7 wrapped on the outermost layer is a rectangular sheet structure. It can be rolled up according to the size of the hole and put into the hole, and then supported by the inner support plate 3-4 to achieve firm support and fixing effect, further enhancing the effect of hole sealing, preventing external soil, water and other substances from entering the drill hole, and also playing a certain buffering role to protect the inner support plate 3-4 and the inner sleeve 2.

[0040] As Figures 1-4As shown, this embodiment proposes a docking component 4 including a circular groove 4-1, which is formed on the bottom surface of the top cover 1. The inner sleeve 2 is inserted into the circular groove 4-1. A circular hole 4-2 is formed on the upper surface of the top cover 1. A polygonal insert 4-3 is provided on the surface of the top cover 1. A threaded groove 4-4 is formed between the polygonal insert 4-3 and the top cover 1. A bolt 4-5 is inserted into the circular hole 4-2 and connected to the threaded groove 4-4. The bolt 4-5 is screwed into the threaded groove 4-4.

[0041] In some examples, the hole size may deviate during sealing, requiring adjustment of the support to suit the hole size. To address this, a docking assembly 4 is designed. This assembly includes a circular groove 4-1 on the bottom surface of the top cover 1. The inner sleeve 2 can be inserted into the circular groove 4-1 to dock with the top cover 1. A polygonal insert 4-3 is provided on the top, which will not rotate after insertion and can lock the top cover 1 and the inner sleeve 2. A circular hole 4-2 on the top of the top cover 1 is used to insert a bolt 4-5. The lower end of the bolt 4-5 in the circular hole 4-2 is connected to the threaded groove 4-4 by a threaded engagement. The bolt 4-5 can be tightened to firmly connect the top cover 1 and the inner sleeve 2 together, and can be disassembled for easy adjustment according to the hole conditions.

[0042] like Figures 1-4 As shown, this embodiment proposes a carrying component 5 including a top groove 5-1, which is formed on the surface of the top cover 1. A pair of handles 5-2 are rotatably connected in the top groove 5-1 by a pin. Several drainage grooves 5-3 are formed around the inner surface of the top groove 5-1.

[0043] In some examples, a carrying component 5 is designed to make it easy to carry. This component includes a top groove 5-1 that is formed around the surface of the top cover 1 in a ring-shaped structure. A pair of handles 5-2, which are rotatably connected by a pin, can be hidden inside the top groove 5-1. When in use, they can be rotated upwards to open for easy carrying. Multiple drainage channels 5-3 formed around the top groove 5-1 can drain rainwater outwards when it enters the top groove 5-1, preventing it from accumulating inside.

[0044] For example, such as Figure 1 As shown, the surface of the bonding piece 3-7 has a toothed structure, and the outer surface of the inner support plate 3-4 is bonded to the surface of the bonding piece 3-7.

[0045] In some examples, the toothed structure allows for better support and anti-slip properties between the bonding piece 3-7 and the inner wall of the hole, preventing slippage.

[0046] For example, such as Figure 2 As shown, the outer end face of the anti-detachment block 3-5 is an inclined structural surface.

[0047] In some examples, by tilting the structural surface, the anti-detachment blocks 3-5 will not interfere with each other and prevent shrinkage when the active column contracts.

[0048] For example, as shown in Figure 2 The inner side surface of the inner support plate 3-4 is outwardly convex, and the size of the inner side convex part of the inner support plate 3-4 is smaller than the size of the opening of the side opening 3-1.

[0049] In some examples, by increasing the thickness of the inner support plate 3-4 through the inward convexity, the support strength can be increased, it is not easy to be damaged, and a part of the side opening 3-1 can be retracted, so as to avoid the hole size being too small to be adjusted.

[0050] In actual use: turn the handle 5-2 to make it open for convenient carrying, after reaching the drilling position, first select the appropriate inner sleeve 2 according to the size of the drilling hole and insert it into the circular groove 4-1 at the bottom of the top cover 1, pass through the round hole 4-2 and screw into the threaded groove 4-4 through the bolt 4-5 to fix, the sticking piece 3-7 wraps around the outer surface of the inner support plate 3-4, and extrudes the inner support plate 3-4 to shrink, then put the device into the drilling hole, press down the top cover 1, the movable rod 3-3 extends outward under the action of the spring 3-6, the inner support plate 3-4 extends through the side opening 3-1 and adheres to the inner wall of the drilling hole, and the sticking piece 3-7 also expands and contacts the inner wall of the drilling hole, that is, the hole sealing and installation are completed, and after use, the top cover 1 can be pulled out by lifting the handle.

[0051] It should be noted that the above examples are only used to illustrate the technical solutions of the present disclosure and are not limiting. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, and they should be covered in the scope of the claims of the present disclosure.

Claims

1. A temporary hole closure device for geological exploration, characterized in that, Include: The top cover (1) and the inner sleeve (2) are arranged at the bottom of the top cover (1); The docking assembly (4) is arranged between the top cover (1) and the inner sleeve (2); The inner support closing assembly (3) is arranged in the inner sleeve (2); The hand-held assembly (5) is arranged on the top cover (1); The inner support closing assembly (3) includes a plurality of side openings (3-1) arranged around the side surface of the inner sleeve (2), a support sleeve (3-2) arranged at the top of the inner sleeve (2), a plurality of pairs of movable rods (3-3) movably sleeved and connected around the side surface of the support sleeve (3-2), and an inner support plate (3-4) arranged at one end of the movable rod (3-3).

2. A temporary hole closure device for geological exploration according to claim 1, characterised in that, The movable rod (3-3) is provided with a anti-drop block (3-5) at one end, a spring (3-6) is sleeved on the movable rod (3-3), and a fit sheet (3-7) is sleeved outside the inner support plate (3-4).

3. A temporary hole closure device for geological exploration according to claim 1, characterised in that, The docking assembly (4) includes a circular groove (4-1) arranged on the bottom surface of the top cover (1), the inner sleeve (2) is inserted into the circular groove (4-1), and a circular hole (4-2) is arranged on the upper surface of the top cover (1).

4. A temporary hole closure device for geological exploration according to claim 3, characterised in that, The surface of the top cover (1) is provided with a polygonal plug (4-3), the top cover (1) is provided with a threaded groove (4-4) inside, the circular hole (4-2) is connected with a bolt (4-5) inserted therein, and the bolt (4-5) is screwed into the threaded groove (4-4).

5. A temporary hole closure device for geological exploration according to claim 1, characterized in that, The hand-held assembly (5) includes a top groove (5-1) arranged on the surface of the top cover (1), a pair of handles (5-2) rotatably connected in the top groove (5-1) through a pin shaft, and a plurality of drainage grooves (5-3) arranged around the inner side surface of the top groove (5-1).

6. A temporary hole closure device for geological exploration according to claim 2, wherein, The surface of the fit sheet (3-7) is a tooth-shaped structure, and the outer surface of the inner support plate (3-4) is fitted with the surface of the fit sheet (3-7).

7. A temporary hole closure device for geological exploration according to claim 2, characterised in that, The outer end surface of the anti-drop block (3-5) is an inclined structure.

8. A temporary hole closure device for geological exploration according to claim 1, characterized in that, The inner side surface of the inner support plate (3-4) is outwardly convex, and the size of the convex part of the inner side surface of the inner support plate (3-4) is smaller than the size of the opening of the side opening (3-1).

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