A core holder

Abstract

The present application relates to the field of core holder, disclose a kind of core holder, comprising: barrel, left end of the barrel is provided with left plug, right end of the barrel is provided with gland, right plug is provided at the gland;Cover, hinged on the barrel, open cover, switch rubber cylinder;Fastening structure is arranged on the cover and barrel, and the cover is fastened on the barrel;By setting cover, rotating clamping structure and multiple rubber cylinders, when the test core is removed from multiple positions as needed, only need to open cover, utilize rotating clamping structure to rotate multiple rubber cylinders, when the test core is removed from multiple positions, timely switch rubber cylinder to corresponding position, use, so as to not need to disassemble rubber cylinder and replace, operation is more simple, convenient, improve work efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of core holders, and in particular to a core holder. Background Technology

[0002] A core holder is a tool used in the laboratory to hold, protect, and seal rock samples. It is a core component in core analysis and displacement experiments and is often used to simulate formation conditions in order to determine the basic physical properties of rock samples and provide a scientific basis for oilfield exploration and development. Existing patent CN107014980B discloses a semi-open core holder, in which the cylinder and the cover are connected by bolts, and the front of the cover can be opened. The semi-open structure makes it easy to take out and put in the internal rubber sleeve. During the whole process, the left end of the holder does not need to be disassembled, while the right end only needs to be adjusted appropriately, thus realizing the rapid picking and loading of cores. At the same time, the semi-open structure makes it easy to check the internal working condition, and deformed or failed rubber sleeves can be replaced in time, which is conducive to the smooth progress of the test. However, in the existing technology, when it is necessary to remove test cores from multiple locations, the cover needs to be opened frequently and the rubber sleeve needs to be replaced, which increases the workload and reduces the work efficiency. Therefore, there are areas for improvement. Summary of the Invention

[0003] To address the problems mentioned in the background art, the present invention provides a core holder.

[0004] The core holder provided by this invention adopts the following technical solution: A core holder, comprising: A cylindrical body, wherein a left plug is provided at the left end of the cylindrical body, a pressure cap is provided at the right end of the cylindrical body, and a right plug is provided at the pressure cap; The cover is hinged to the cylinder body. Opening the cover allows for switching of the rubber tube. A fastening structure is provided on the cover and the cylinder to fasten the cover to the cylinder; A rotating locking structure is provided inside the cover body for switching between multiple rubber cylinders for operation; A movable reset structure is provided, wherein the rotating locking structure is mounted on the cover via the movable reset structure, and is used to move the rotating locking structure. A covering structure is provided on the rotating locking structure to cover one end of the stored rubber tube; A transmission flipping structure is disposed between the covering structure and the movable reset structure, which automatically drives the covering structure to flip during the movement. A pick-and-place structure is provided on the rotating locking structure for picking up and placing the rubber tube; A sealing structure is provided on the cover and the cylinder to seal the cover when it is closed.

[0005] As one embodiment, the rotating locking structure includes: A movable plate is provided on the cover, and a baffle is installed at one end of the movable plate. A through hole is provided on the baffle near the edge. Multiple abutment rings are provided on one side edge of the baffle, and a placement cylinder is installed on each abutment ring. One of the placement cylinders is connected to a through hole, and a rubber tube is inserted into the placement cylinder. A locking block is provided in the middle of one side of the baffle. The end face of the locking block is square. A locking seat is provided on the locking block. A locking groove is provided on the locking seat and is movably fitted on the locking block. Each abutment ring is fixedly set on the locking seat. Multiple handles are installed on the outer side of the locking seat. One end of the locking block is connected to the inner wall of the locking seat by a telescopic rod. One end of the telescopic rod is rotatably connected to the inner wall of the locking seat. A spring is sleeved on the telescopic rod, and the two ends of the spring are respectively connected to the locking block and the inner wall of the locking seat.

[0006] As one embodiment, the movable reset structure includes: An inner strip is fixedly disposed on the inner wall of the cover body, and a groove is formed on the inner strip; A movable block is slidably disposed in the groove. The movable block is installed under the movable plate. A telescopic rod two is connected between the movable block and the groove wall at one end. One end of the telescopic rod two is connected to the movable block. A spring two is sleeved on the telescopic rod two. The two ends of the spring two are respectively connected to the movable block and the groove wall at one end. Limiting blocks are provided on both sides of the groove, and the moving block is pulled tight on the limiting blocks.

[0007] As one embodiment, the covering structure includes: Rotate the sleeve connecting the other end of the movable plate; A baffle plate is fixedly fitted onto the sleeve, and a through hole is formed at the upper edge of the baffle plate.

[0008] As one embodiment, the transmission flipping structure includes: A fixed ring is fixedly fitted onto one end of the sleeve, and a transmission rod is fixedly mounted on the fixed ring; A protrusion is provided at one end of the inner strip, and a fixed post is connected to the protrusion. A transmission groove is opened on the fixed post, and one end of the transmission rod is inserted into the sleeve and slidably disposed in the transmission groove.

[0009] As one embodiment, the pick-and-place structure includes: An annular groove is formed at one end of the placement cylinder, and an extension cylinder is movably sleeved on the annular groove. A spring is connected between the extension cylinder and the groove wall at one end of the annular groove, and a fixing ring is sleeved on each extension cylinder. The multiple fixed rings are fixedly connected by connecting strips, and two of the connecting strips are connected to pressure plates, one end of which is pressed against the side of the inner strip; Limiting strips are provided on both outer sides of the inner strip.

[0010] As one embodiment, the sealing structure includes: Sealing grooves are formed on the inner wall of the cover near both ends, and sealing gaskets are embedded in the inner wall of the cylinder.

[0011] As one embodiment, the fastening structure includes: The cover is provided with a protrusion three, a bolt is provided on the protrusion three, and a nut is fitted on the bolt; The cylinder is provided with a second protrusion.

[0012] In summary, the present invention has the following beneficial technical effects: This invention, by setting up a cover, a rotating locking structure and multiple rubber tubes, allows for the easy switching of rubber tubes to the corresponding positions when multiple locations need to be removed from the test core. This eliminates the need to disassemble and replace the rubber tubes, making the operation simpler, more convenient and improving work efficiency. This invention utilizes a movable reset structure, a covering structure, and a transmission flipping structure. The covering structure blocks one end of the rubber tube stored inside the cylinder, and the baffle plate blocks the other end inside the rubber tube. This prevents the core from falling out of the rubber tube during storage. When it is necessary to remove or replace the rubber tube, the movable reset structure drives the rotating locking structure to move, and the transmission flipping structure automatically flips open the covering structure during the movement to remove or replace the rubber tube. This invention utilizes a pick-and-place structure that automatically removes the extension tube from one end of the glue tube while it moves, thereby exposing one end of the glue tube and facilitating the picking and placing of the glue tube. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a core holder according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the rotating locking structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the inner strip in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure at the movable plate in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the barrier in an embodiment of the present invention; Figure 6This is a schematic diagram of the structure of the moving plate and the card slot in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure at the locking block in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the card slot in an embodiment of the present invention.

[0014] Explanation of reference numerals in the attached drawings: 1. Cylinder body; 2. Left end cap; 3. Pressure cap; 4. Right end cap; 5. Moving plate; 6. Cover body; 7. Baffle plate; 8. Placement cylinder; 9. Abutment ring; 10. Locking seat; 11. Handle; 12. Locking groove; 13. Locking block; 14. Telescopic rod one; 15. Spring one; 16. Moving block; 17. Inner strip; 18. Telescopic rod two; 19. Limiting block; 20. Spring two; 21. Sleeve; 22. 23. Through hole two; 24. Through hole one; 25. Fixing ring; 26. Transmission rod; 27. Fixing post; 28. Transmission groove; 29. ​​Protrusion one; 30. Annular groove; 31. Spring three; 32. Extension cylinder; 33. Fixing ring; 34. Connecting strip; 35. Pressure plate; 36. Limiting strip; 37. Sealing groove; 38. Sealing gasket; 39. Protrusion two; 40. Protrusion three; 41. Bolt; 42. Nut. Detailed Implementation

[0015] The following is in conjunction with the appendix Figures 1-8 The present invention will be described in further detail below.

[0016] This invention discloses a core holder. (Refer to...) Figures 1-8 A core holder includes: a cylinder 1, with a left plug 2 at the left end and a pressure cap 3 at the right end, and a right plug 4 at the pressure cap 3; a cover 6, hinged to the cylinder 1, for switching rubber cartridges when the cover 6 is opened; a fastening structure, mounted on the cover 6 and the cylinder 1, for fastening the cover 6 to the cylinder 1; a rotating locking structure, located inside the cover 6, for switching multiple rubber cartridges for operation; a moving reset structure, mounted on the cover 6 via the moving reset structure, for moving the rotating locking structure; a covering structure, mounted on the rotating locking structure, for covering one end of the stored rubber cartridge; a transmission flipping structure, located between the covering structure and the moving reset structure, for automatically driving the covering structure to flip during movement; a pick-and-place structure, mounted on the rotating locking structure, for picking up and placing rubber cartridges; and a sealing structure, mounted on the cover 6 and the cylinder 1, for sealing when the cover 6 is closed.

[0017] See Figures 1-8The rotating locking structure includes: a movable plate 5 mounted on the cover 6, a baffle 7 installed at one end of the movable plate 5, and a through hole 24 near the edge of the baffle 7; multiple abutments 9 are provided on one side edge of the baffle 7, and a placement cylinder 8 is installed on each abutment 9, one of the placement cylinders 8 communicating with the through hole 24, and a rubber tube is inserted into the placement cylinder 8; a locking block 13 is provided in the middle of one side of the baffle 7, the end face of the locking block 13 is square, and a locking seat 10 is provided on the locking block 13, the locking seat 10 having a... The locking slot 12 is movably fitted onto the locking block 13, and each abutment ring 9 is fixedly set on the locking seat 10. Multiple handles 11 are installed on the outer side of the locking seat 10. A telescopic rod 14 is connected between one end of the locking block 13 and the inner wall of the locking seat 10. One end of the telescopic rod 14 is rotatably connected to the inner wall of the locking seat 10. A spring 15 is fitted onto the telescopic rod 14, and the two ends of the spring 15 are respectively connected to the locking block 13 and the inner wall of the locking seat 10. The movable reset structure includes: fixedly set on the inner wall of the cover 6. The inner strip 17 has a groove; a movable block 16 is slidably disposed in the groove, and the movable block 16 is installed below the movable plate 5. A telescopic rod 18 is connected between the movable block 16 and one end of the groove wall. One end of the telescopic rod 18 is connected to the movable block 16, and a spring 20 is sleeved on the telescopic rod 18. The two ends of the spring 20 are respectively connected to the movable block 16 and one end of the groove wall; limiting blocks 19 are provided on both sides of the groove, and the movable block 16 is tightened on the limiting blocks 19; in more When changing the rubber cartridge to take core samples from other locations, open the cover 6 on the cylinder body 1, use the handle 11 to pull down the locking seat 10 from the locking block 13, extend the telescopic rod 14 and the spring 15, and then rotate the locking seat 10 to rotate and switch one of the rubber cartridges stored in the cylinder 8 to the through hole 24. The rubber cartridge can be replaced in time for work. The used rubber cartridge is directly stored in the cylinder body 1, without having to remove the rubber cartridge again for replacement, so that the clamp can continue to be used, which improves work efficiency.

[0018] See Figures 1-8The covering structure includes: a sleeve 21 rotatably connected to the other end of the movable plate 5; a baffle plate 22 is fixedly fitted on the sleeve 21, and a through hole 23 is opened at the upper edge of the baffle plate 22; the transmission and flipping structure includes: a fixing ring 25 fixedly fitted on one end of the sleeve 21, and a transmission rod 26 fixedly fitted on the fixing ring 25; a protrusion 29 is provided on one end of the inner strip 17, a fixing post 27 is connected to the protrusion 29, a transmission groove 28 is opened on the fixing post 27, and the transmission rod 26 is inserted into the sleeve 21 and slidably set in the transmission groove 28; the picking and placing structure includes: an annular groove 30 opened on one end of the placing cylinder 8, an extension cylinder 32 is movably fitted on the annular groove 30, a spring 31 is connected between the extension cylinder 32 and the groove wall of one end of the annular groove 30, and a fixing ring 33 is fitted on each extension cylinder 32; multiple fixing rings 33 are fixedly connected by connecting strips 34, of which two connecting strips 34 are fixedly connected by connecting strips 34. 4. A pressure plate 35 is connected to the upper part, and one end of the pressure plate 35 is close to the side of the inner strip 17. Limiting strips 36 are provided on both sides of the outer surface of the inner strip 17. When it is necessary to remove the rubber tube stored in the placement cylinder 8, firstly, the moving plate 5 is pulled on the inner strip 17 to move, the moving block 16 moves away from the limiting block 19, and the extension rod 18 and the spring 20 are extended. During the movement of the moving plate 5, one end of the transmission rod 26 on the fixed ring 25 slides in the transmission groove 28 of the fixed column 27, thereby driving the sleeve 21 to rotate. The sleeve 21 drives the baffle 22 to turn away from one end of the rubber tube. When the pressure plate 35 moves to the limiting strip 36, as the moving plate 5 continues to move, the pressure plate 35 drives the extension cylinder 32 to move in the annular groove 30, squeezing the spring 31. Thus, when the baffle 22 turns away, one end of the rubber tube is directly exposed, making it convenient to take out and put in the rubber tube from the placement cylinder 8.

[0019] See Figure 1 The sealing structure includes: sealing grooves 37 formed on the inner wall of the cover 6 near both ends; a sealing gasket 38 embedded in the inner wall of the cylinder 1; the cover 6 is tightened on the cylinder 1, causing the sealing grooves 37 to fit onto the sealing gasket 38, thereby increasing the sealing performance; the fastening structure includes: a third protrusion 40 is provided on the cover 6, a bolt 41 is provided on the third protrusion 40, and a nut 42 is fitted on the bolt 41; a second protrusion 39 is provided on the cylinder 1; after the cover 6 is tightened onto the cylinder 1, the bolt 41 is passed through the second protrusion 39, and then the nut 42 is tightened on the bolt shank 41, thereby fixing the cover 6 on the cylinder 1.

[0020] The implementation principle of a core holder according to an embodiment of the present invention is as follows: When changing the rubber sleeve to retrieve cores from other locations, open the cover 6 on the cylinder 1, use the handle 11 to pull down the locking seat 10 from the locking block 13, extend the telescopic rod 14 and the spring 15, and then rotate the locking seat 10 to rotate and switch one of the rubber sleeves stored in the cylinder 8 to the through hole 24, so as to replace the rubber sleeve in time for work. Furthermore, the used rubber sleeve is directly stored in the cylinder 1, eliminating the need to remove the rubber sleeve for replacement, thus improving work efficiency. When it is necessary to remove the rubber sleeve stored in the cylinder 8, firstly, on the inner strip 17... Pulling the movable plate 5 moves the movable block 16 away from the limiting block 19, extending the telescopic rod 18 and the spring 20. During the movement, the movable plate 5 drives one end of the transmission rod 26 on the fixed ring 25 to slide in the transmission groove 28 of the fixed column 27, thereby driving the sleeve 21 to rotate. The sleeve 21 drives the baffle 22 to turn away from one end of the rubber tube. When the pressure plate 35 moves to the limiting strip 36, as the movable plate 5 continues to move, the pressure plate 35 drives the extension cylinder 32 to move in the annular groove 30, squeezing the spring 31. Thus, when the baffle 22 turns away, one end of the rubber tube is directly exposed, making it convenient to take the rubber tube out of the placement cylinder 8.

[0021] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A core clamp, characterized in that, include: A cylindrical body (1) is provided with a left plug (2) at the left end of the cylindrical body (1), a pressure cap (3) is provided at the right end of the cylindrical body (1), and a right plug (4) is provided at the pressure cap (3). The cover (6) is hinged to the cylinder (1). Open the cover (6) to switch the rubber cylinder. A fastening structure is provided on the cover (6) and the cylinder (1) to fasten the cover (6) on the cylinder (1); A rotating locking structure is provided inside the cover (6) for switching multiple rubber tubes for operation; The movable reset structure, wherein the rotating locking structure is mounted on the cover (6) via the movable reset structure, is used to move the rotating locking structure; A covering structure is provided on the rotating locking structure to cover one end of the stored rubber tube; A transmission flipping structure is disposed between the covering structure and the movable reset structure, which automatically drives the covering structure to flip during the movement. A pick-and-place structure is provided on the rotating locking structure for picking up and placing the rubber tube; A sealing structure is provided on the cover (6) and the cylinder (1) to seal the closed cover (6).

2. The core clamp according to claim 1, characterized in that, The rotating locking structure includes: A movable plate (5) is provided on the cover (6), and a baffle (7) is installed at one end of the movable plate (5). A through hole (24) is opened on the baffle (7) near the edge. Multiple abutment rings (9) are provided on one side edge of the baffle (7), and each abutment ring (9) is equipped with a placement cylinder (8). One of the placement cylinders (8) is connected to the through hole (24), and a rubber tube is inserted into the placement cylinder (8). A locking block (13) is provided in the middle of one side of the baffle (7). The end face of the locking block (13) is square. A locking seat (10) is provided on the locking block (13). A locking groove (12) is provided on the locking seat (10) and is movably fitted on the locking block (13). Each abutment ring (9) is fixedly set on the locking seat (10). Multiple handles (11) are installed on the outer side of the locking seat (10). One end of the locking block (13) is connected to the inner wall of the locking seat (10) by a telescopic rod (14). One end of the telescopic rod (14) is rotatably connected to the inner wall of the locking seat (10). A spring (15) is sleeved on the telescopic rod (14). The two ends of the spring (15) are respectively connected to the locking block (13) and the inner wall of the locking seat (10).

3. A core holder according to claim 2, characterized in that: The movable reset structure includes: An inner strip (17) is fixedly installed on the inner wall of the cover (6), and a groove is formed on the inner strip (17); A movable block (16) is slidably disposed in the groove. The movable block (16) is installed under the movable plate (5). A telescopic rod (18) is connected between the movable block (16) and the groove wall at one end. One end of the telescopic rod (18) is connected to the movable block (16). A spring (20) is sleeved on the telescopic rod (18). The two ends of the spring (20) are respectively connected to the movable block (16) and the groove wall at one end. Limiting blocks (19) are provided on both sides of the groove, and the moving block (16) is tightened on the limiting blocks (19).

4. A core holder according to claim 3, characterized in that: The covering structure includes: Rotate the sleeve (21) that connects to the other end of the movable plate (5); A baffle plate (22) is fixedly fitted onto the sleeve (21), and a through hole (23) is opened at the upper edge of the baffle plate (22).

5. A core holder according to claim 4, characterized in that: The transmission flipping structure includes: A fixed ring (25) is fixedly sleeved on one end of the sleeve (21), and a transmission rod (26) is fixedly installed on the fixed ring (25). One end of the inner strip (17) is provided with a protrusion (29), a fixed post (27) is connected to the protrusion (29), a transmission groove (28) is opened on the fixed post (27), and one end of the transmission rod (26) is inserted into the sleeve (21) and slidably disposed in the transmission groove (28).

6. A core holder according to claim 2, characterized in that: The pick-and-place structure includes: An annular groove (30) is formed at one end of the placement cylinder (8), and an extension cylinder (32) is movably sleeved on the annular groove (30). A spring (31) is connected between the extension cylinder (32) and the groove wall at one end of the annular groove (30). A fixing ring (33) is sleeved on each extension cylinder (32). Multiple fixed rings (33) are fixedly connected by connecting strips (34), wherein two of the connecting strips (34) are connected to pressure plates (35), and one end of the pressure plate (35) is attached to the side of the inner strip (17); Limiting strips (36) are provided on both sides of the outer surface of the inner strip (17).

7. A core holder according to claim 1, characterized in that: The sealing structure includes: A sealing groove (37) is formed on the inner wall of the cover (6) near both ends, and a sealing gasket (38) is embedded in the inner wall of the cylinder (1).

8. A core holder according to claim 1, characterized in that: The fastening structure includes: The cover (6) is provided with a protrusion three (40), a bolt (41) is provided on the protrusion three (40), and a nut (42) is fitted on the bolt (41). The cylinder (1) is provided with a second protrusion (39).

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