Folding device for drilling and coring in sequence

Abstract

The utility model provides a folding device for drilling and coring in sequence. The folding device comprises an annular buckle, the rope winder is arranged on the annular buckle; the folding type rock core bag is firmly connected with the annular buckle, and a drawing rope in the rope winder sequentially penetrates through the drawing rope holes of the folding type rock core bag from top to bottom and is fixed at the bottommost drawing rope hole. The annular buckle is provided with a fastening bolt and a fastening nut which are adjustable in tightness and are used for adapting to core barrels with different calibers; drainage holes are uniformly distributed in the core bag, so that the core can be directly cleaned in the core bag; the rope winder ensures that the core bag is in a folded state before use, the falling distance of the core in the core bag is reduced, and the core is prevented from rolling in the bag body. The core taking device is simple in structure, easy to operate, firm and durable, can effectively achieve the purpose of taking cores from the core tube in sequence, solves the problem that the sequence of taking the cores from the core tube is disordered due to a traditional core taking method, and has the advantages of being more standard in core taking and more accurate in geological information obtaining.

Description

Technical Field

[0001] The utility model relates to the field of geotechnical engineering drilling, in particular to a foldable sequentially drilling and coring device. Background Art

[0002] Drilling is the process of using a drilling rig, drilling tools, and a complete set of process measures to drill cylindrical holes in the stratum, extract rock and mineral samples, explore the occurrence and distribution patterns of minerals, or achieve other geological and technical purposes. However, during the drilling construction process, because current core barrels do not have the function of opening and closing, the core is often shaken out of the core barrel by hitting the side wall with a hammer. The advantages of this method are simplicity, ease of use, and high efficiency. However, it will cause the cores in the core barrel to be scattered on the ground. Workers then place the cores into the core box based on memory, which can easily cause the order of the cores within a single run to be disrupted, leading to serious consequences such as incorrect geological information obtained through drilling.

[0003] Therefore, in order to solve the above problems, there is an urgent need for a device that can reduce or avoid the occurrence of the above problems while ensuring efficiency. The device is of great significance for taking cores from the core barrel in sequence, thereby obtaining more accurate geological information. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a foldable sequential coring drilling device, the purpose of which is to quickly and efficiently extract cores from a core barrel in sequence, thereby obtaining more accurate geological information.

[0005] The technical solution adopted by the present invention to solve the above problems is:

[0006] A foldable device for sequentially drilling and coring, characterized by comprising: an annular buckle; a rope reel arranged on the annular buckle; a foldable core bag firmly connected to the annular buckle, wherein the draw rope in the rope reel passes through the draw rope holes of the foldable core bag from top to bottom in sequence and is fixed at the bottom draw rope hole.

[0007] Preferably, the annular buckle 1 is composed of a pair of clamping rings, a pair of fastening bolts, and a pair of fastening nuts. Each clamping ring is C-shaped, and each clamping ring is provided with a hole seat at both ends. Each hole seat is provided with a through hole that can cooperate with the fastening bolt and the fastening nut. A pair of fastening bolts pass through the hole seats at both ends of a pair of clamping rings respectively and are connected into one through a pair of fastening nuts respectively. A rope reel is fixed on each clamping ring.

[0008] Preferably, the clamping ring is made of stainless steel and should not be too thick.

[0009] Preferably, the cord reel consists of a housing, a spiral spring, a drum, a drawstring, and a fixed shaft. The housing is fixed to the snap ring. The spiral spring is placed inside the drum, with one end connected to the inner wall of the drum and the other end fixed to the fixed shaft. The drum is placed inside the housing and sleeved on the fixed shaft, and is in the shape of a cylinder. To prevent the drawstring from winding and knotting and for easy storage, one end of the drawstring is fixed to the outer wall of the drum and wound around the drum in sequence, and the other end is pulled out from the drawstring outlet of the housing and passes through the drawstring holes of the folding core bag from top to bottom and is fixed at the bottommost drawstring hole. The fixed shaft is fixed at the center inside the housing.

[0010] Preferably, the housing is made of strong and durable hard plastic; the drawstring is made of strong, wear-resistant, and curlable material. The strength of the spiral spring should meet the following conditions: 1. When the device is not in use, the drawstring is wound under the action of the spiral spring to keep the folding core bag in a folded state; 2. When the device is in use, the spiral spring should not be too tight to cause the situation where the core falls into the folding core bag but it cannot be unfolded.

[0011] Preferably, under the action of the cord reel, the core bag is in a folded state, saving space and being convenient to carry. At the same time, when starting to take the core from the core tube, the falling distance of the lowermost core in the core bag can be reduced, and the situations such as the core tipping over and being out of order in the folding core bag can be reduced.

[0012] Preferably, the housing is a hollow cylinder as a whole and is provided with a drawstring outlet; the drawstring is flat strip-shaped and its width is narrower than the width of the drum.

[0013] Preferably, a number of drainage holes are evenly distributed on the folding core bag; a number of shaping rings are evenly arranged inside the folding core bag; a number of drawstring holes are arranged on both sides of the folding core bag; a net-shaped baffle with opening and closing functions is arranged at the bottom of the folding core bag.

[0014] Preferably, the aperture of the drainage holes should be relatively small and evenly distributed densely; the diameter of the shaping rings should be slightly larger than the diameter of the core tube to be taken; the drawstring holes should be designed as flat openings to fit the shape of the drawstring; the mesh size of the net-shaped baffle should not be too large on the premise of ensuring smooth drainage; the bag body material should preferably be selected from materials including but not limited to strong and wear-resistant rubber or fabric, etc.

[0015] Compared with the prior art, the present utility model has the following advantages and effects:

[0016] (1) The device is applicable to core tubes of different diameters and can ensure that the sequence of the cores is not disturbed during the core-taking process, so as to obtain more real and reliable geological information.

[0017] (2) The device is arranged at the bottom of the core barrel, which does not prevent workers from quickly taking cores by knocking on the core barrel or other means, saving time and improving efficiency.

[0018] (3) The core cleaning work can be directly carried out in the device, and the core order is not disrupted during the cleaning process.

[0019] (4) The device occupies a small space, is convenient to organize, easy to carry, has a simple principle, is strong and durable, and has a low cost. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the present utility model.

[0021] Figure 2 It is a schematic structural diagram of the annular buckle of the present utility model.

[0022] Figure 3 It is a schematic structural diagram of the rope winder of the present utility model.

[0023] Figure 4a It is a schematic structural diagram of the foldable core bag of the present utility model.

[0024] Figure 4b It is a schematic structural diagram of the mesh baffle of the foldable core bag of the present utility model.

[0025] Figure 5a 、 Figure 5b 、 Figure 5c They are respectively schematic diagrams of the using process of the present utility model.

[0026] Wherein: 1. Annular buckle; 2. Rope winder; 3. Foldable core bag; 1-1. Snap ring; 1-2. Fastening bolt; 1-3. Fastening nut; 2-1. Outer shell; 2-2. Hairspring; 2-3. Reel; 2-4. Drawstring; 2-5. Fixed shaft; 3-1. Drain hole; 3-2. Shaping ring; 3-3. Drawstring hole; 3-4. Mesh baffle. Detailed Embodiment

[0027] The present utility model will be further described in detail below in conjunction with the drawings and through embodiments. The following embodiments are explanations of the present utility model, and the present utility model is not limited to the following embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0028] Such as Figure 1As shown in FIGS. 1 to 5, the present utility model provides a folding device for core drilling in sequence, which is characterized by comprising: an annular buckle 1; a rope winder 2 arranged on the annular buckle 1, there are two rope winders 2, and they are symmetrically arranged on both sides of the annular buckle 1; a folding core bag 3 firmly connected to the annular buckle 1, and the drawstrings 2-4 in each rope winder 2 sequentially pass through the drawstring holes 3-3 of the folding core bag 3 from top to bottom and are fixed at the bottommost drawstring hole 3-3.

[0029] As Figure 2 shown, the annular buckle 1 is composed of a pair of snap rings 1-1, a pair of fastening bolts 1-2, and a pair of fastening nuts 1-3. The outer shape of each snap ring 1-1 is C-shaped, there are hole seats at both ends of each snap ring 1-1, and each hole seat is provided with through holes that can cooperate with the fastening bolts 1-2 and the fastening nuts 1-3. A pair of fastening bolts 1-2 respectively pass through the hole seats at both ends of a pair of snap rings 1-1 and are respectively connected into one body through a pair of fastening nuts 1-3, and one rope winder 2 is fixed on each snap ring 1-1.

[0030] As Figure 3 shown, the rope winder 2 is composed of a housing 2-1, a clockwork spring 2-2, a reel 2-3, a drawstring 2-4, and a fixed shaft 2-5. The housing 2-1 is fixed on the snap ring 1-1. The clockwork spring 2-2 is placed inside the reel 2-3. One end of the clockwork spring 2-4 is connected to the inner wall of the reel 2-3, and the other end is fixed on the fixed shaft 2-5; the reel 2-3 is placed inside the housing 2-1 and sleeved on the fixed shaft 2-5, and its shape is cylindrical; to prevent the drawstring 2-4 from winding and knotting and to facilitate storage, one end of the drawstring 2-4 is fixed on the outer wall of the reel 2-3 and sequentially wound around the reel 2-3, and the other end is pulled out from the drawstring outlet of the housing 2-1 and sequentially passes through the drawstring holes 3-3 of the folding core bag 3 from top to bottom and is fixed at the bottommost drawstring hole 3-3; the fixed shaft 2-5 is fixed at the center inside the housing 2-1.

[0031] The housing 2-1 is a hollow cylinder as a whole and is provided with a drawstring outlet; the drawstring 2-4 is flat strip-shaped and its width is slightly narrower than the width of the reel. The material of the housing 2-1 is preferably selected from, but not limited to, strong and durable hard plastics; the material of the drawstring 2-4 should be strong, wear-resistant, and capable of curling; the strength of the clockwork spring 2-2 should meet the following conditions: 1. When the device is not in use, the drawstring is wound under the action of the clockwork spring to make the core bag in a folded state; 2. When the device is in use, the clockwork spring should not be too tight, so that the core bag cannot be unfolded after the core falls into the core bag.

[0032] As Figure 4a 、 Figure 4bAs shown, a number of drainage holes 3-1 are evenly distributed on the foldable core bag 3; a number of fixing rings 3-2 are evenly arranged inside the foldable core bag 3; a number of drawstring holes 3-3 are arranged on both sides of the foldable core bag 3; a net-shaped baffle 3-4 with an opening and closing function is arranged at the bottom of the foldable core bag 3. The aperture of the drainage hole 3-1 should be relatively small and the distribution should be evenly dense; the diameter of the fixing ring 3-2 should be slightly larger than the diameter of the core tube taken; the drawstring hole 3-3 should be designed as a flat opening to fit the shape of the drawstring 2-4; the mesh diameter of the net-shaped baffle 3-4 should not be too large on the premise of ensuring smooth drainage; the bag body material of the foldable core bag 3 should preferably be selected from materials including but not limited to strong and wear-resistant rubber or fabric, etc.

[0033] As Figure 5a , Figure 5b , Figure 5c shown, the method of using the above-mentioned device for sequentially taking cores from the core tube in a foldable manner is as follows:

[0034] S1. Lift the core tube to an appropriate height, put the annular buckle 1 on the bottom of the core tube, and adjust the fastening bolts and nuts to tightly connect the annular buckle with the core tube;

[0035] S2. Make the core in the core tube fall into the foldable core bag 3 by means of hammering or the like. Under the action of the fixing ring and the winch, the core can slowly enter the foldable core bag in sequence;

[0036] S3. For the case of more and longer cores, since the material of the foldable core bag is a flexible material such as rubber or fabric, the bottom of the core bag can be dragged to an open space at will during the dumping process;

[0037] S4. After ensuring that all the cores have been taken out of the core tube, adjust the fastening bolts and nuts, and remove the device from the bottom of the core tube. At this time, the device can be directly immersed in water, or the mud on the surface of the core can be cleaned in the device by flushing;

[0038] S5. Place the device flat, open the net-shaped baffle at the bottom, and under the action of the winch, the foldable core bag starts to fold automatically. In case of jamming, the foldable core bag can be manually assisted to fold and contract, and at the same time, the cores in the foldable core bag are gradually discharged in sequence.

[0039] Without conflict, the above-mentioned embodiments and the features in the embodiments in this article can be combined with each other.

[0040] Finally, it should be noted that the above content described in this specification is only an illustrative example of the present utility model. Those skilled in the technical field to which the present utility model pertains can make various modifications, supplements, or use similar methods of substitution to the specific embodiments described, as long as they do not deviate from the content of this specification of the present utility model or exceed the scope defined by this claims, it shall fall within the protection scope of the present utility model.

Claims

1. A folding device for sequential coring by drilling, characterized in that, Comprising: A circular snap (1); A rope winder (2) provided on the circular snap (1); A foldable core bag (3) firmly connected to the circular snap (1), and the drawstring (2-4) in the rope winder (2) sequentially passes through the drawstring holes (3-3) of the foldable core bag (3) from top to bottom and is fixed at the bottommost drawstring hole (3-3).

2. The folding device for sequential coring by drilling according to claim 1, characterized in that: The circular snap (1) consists of a pair of snap rings (1-1), a pair of fastening bolts (1-2), and a pair of fastening nuts (1-3). Each snap ring (1-1) has a C-shaped outer contour. Both ends of each snap ring (1-1) are provided with hole seats, and each hole seat is provided with through holes that can cooperate with the fastening bolts (1-2) and the fastening nuts (1-3). The pair of fastening bolts (1-2) respectively pass through the hole seats at both ends of the pair of snap rings (1-1) and are respectively connected into one body by the pair of fastening nuts (1-3). A rope winder (2) is fixed on each snap ring (1-1).

3. The folding device for sequential coring by drilling according to claim 2, wherein: The snap ring (1-1) is made of stainless steel.

4. A folding device for sequential coring by drilling according to claim 2, characterized in that: The rope winder (2) consists of a housing (2-1), a clockwork spring (2-2), a reel (2-3), a drawstring (2-4), and a fixed shaft (2-5). The housing (2-1) is fixed on the snap ring (1-1). The clockwork spring (2-2) is placed inside the reel (2-3). One end of the clockwork spring (2-2) is connected to the inner wall of the reel (2-3), and the other end is fixed on the fixed shaft (2-5); The reel (2-3) is placed inside the housing (2-1) and sleeved on the fixed shaft (2-5), and its shape is cylindrical; One end of the drawstring (2-4) is fixed on the outer wall of the reel (2-3) and sequentially wound around the reel (2-3), and the other end is pulled out from the drawstring outlet of the housing (2-1) and sequentially passes through the drawstring holes (3-3) of the foldable core bag (3) from top to bottom and is fixed at the bottommost drawstring hole (3-3); The fixed shaft (2-5) is fixed at the center inside the housing (2-1).

5. The folding device for sequential coring by drilling according to claim 4, characterized in that: The housing (2-1) is an overall hollow cylinder and is provided with a drawstring outlet; The drawstring (2-4) is flat strip-shaped, and its width is narrower than the width of the reel.

6. The folding device for sequential coring by drilling according to claim 4, wherein: The housing (2-1) is made of strong and durable hard plastic; The drawstring (2-4) is made of strong, wear-resistant, and curlable material.

7. The folding device for sequential coring by drilling according to claim 1, characterized in that: A number of drainage holes (3-1) are evenly distributed on the foldable core bag (3); A number of shaping rings (3-2) are evenly arranged inside the foldable core bag (3); A number of drawstring holes (3-3) are provided on both sides of the foldable core bag (3); A net-shaped baffle (3-4) with an opening and closing function is provided at the bottom of the foldable core bag (3).

8. A folding device for sequential coring by drilling according to claim 7, characterized in that: The diameter of the shaping ring (3-2) is larger than the diameter of the core tube taken; The shape of the drawstring hole (3-3) is designed as a flat opening.

9. The folding device for sequential coring by drilling according to claim 1, characterized in that: The foldable core bag (3) is made of strong and wear-resistant rubber or fabric.

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