CN218674663U - Rock core holder with good tightness - Google Patents

Abstract

The utility model discloses a rock core holder that seal is good, including a holder section of thick bamboo, the extrusion frame of second and packing element, the extrusion frame of second is installed to the one end of outlet pipe, the outside symmetry of the extrusion frame of second is run through and is installed a plurality of fourth threaded rods, the second movable ring is installed in the outside of fourth threaded rod, the inboard symmetry movable mounting of second guide frame has a plurality of second movable plates, the internally mounted of packing element has the rock core body. The utility model discloses rotating the fourth threaded rod and driving the second guide frame and extrude the packing element, adjusting the position of second movable plate after that, making the second movable plate can be totally to being located the inside partial packing element region of second extrusion frame and carrying out comprehensive extrusion, further increasing the seal of packing element edge to reduce the inside fluid pressure of rock core body and overflow the possibility from the edge of packing element greatly, thereby avoid the fluid to overflow and lead to the great error of measuring result appearance.

Description

Rock core holder with good tightness

Technical Field

The utility model relates to a rock core test equipment technical field specifically is a rock core holder that seal is good.

Background

The inside hole size of different ground end rock cores is different, the rock core body that grinds into cylinder or rectangle is carried out the centre gripping through the rock core holder, then carry out the displacement experiment in the internal portion of rock core and can detect the inside porosity of rock core, and then confirm the inside fluid circulation ability of rock core, the inside dead volume of rock core holder indicates the import pipe to lead to the rock core body, the inside hole of rock core body, the sum of the volume of the hole between the outlet pipe to the rock core body and the rock core body holder, also be exactly the size of the space that the fluid can pass through, rock core body holder generally is the packing element that can warp that surrounds in the rock core body outside, the packing element outside can make the hole between packing element and the rock core body reduce through the high-pressure gas extrusion, reduce the dead volume, when the internal hole of rock core body passes through, the pressure of the inside fluid of rock core body is too big, lead to the inside fluid of rock core body with packing element extrusion deformation easily, and then influence the leakproofness of packing element, thereby make the inside fluid of body flow out through the edge of packing element, and then increase the volume that the fluid can circulate, and then increased the dead volume, and then lead to the practicality is inaccurate easily.

The existing core holder has the following defects:

1. the patent document CN206132573U discloses a core holder, which comprises a barrel, two plugs, two glands, a fixed holding part and a movable holding part, wherein the two plugs and the two glands are respectively arranged at two ends of the barrel, the fixed holding part and the movable holding part are respectively provided with a holding end for directly holding a core, the holding ends are packaged in the barrel by the plugs and the glands, the core is held between the fixed holding part and the movable holding part, the outer side of the barrel is provided with a heating sleeve, heat conduction oil is arranged in the heating sleeve, a confining pressure inlet pipe is arranged on the side surface of the barrel, a rubber barrel is sleeved on the outer side of the core, a space between the rubber barrel and the inner wall of the barrel is a confining pressure cavity which is communicated with the confining pressure inlet pipe, and two ends of the rubber barrel extend to the outer side of the holding ends, the outside of exposed core is the conical surface structure, and the sealed isolation of confining pressure chamber and rock core is realized with the packing element cooperation to the conical surface, the activity holder place on the gland of one side on be provided with and press from both sides tight lead screw, "with the utility model discloses compare, the packing element of this equipment surrounds in the rock core outside, utilizes high-pressure gas to extrude the packing element outside, reduces the hole between packing element and the rock core, when the inside hole of rock core is less, the pressure of the inside fluid of rock core increases, the fluid is easy with packing element extrusion deformation, and then leads to the fluid still to flow between packing element and the activity holder, and then has increased the dead volume of rock core body inlet outlet end, consequently needs external solid to extrude the packing element edge, reduces the possibility that the fluid flowed from the packing element edge.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rock core holder that the seal is good to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a rock core holder that leakproofness is good, includes holder section of thick bamboo, second extrusion frame and packing element, movable mounting is run through at the back of holder section of thick bamboo has the outlet pipe, second extrusion frame is installed to the one end of outlet pipe, a plurality of fourth threaded rods are run through to the outside symmetry of second extrusion frame and install, the second activity ring is installed in the outside of fourth threaded rod, second guide frame is installed to the bottom of second activity ring, the inboard symmetry movable mounting of second guide frame has a plurality of second movable plates, the front of second movable plate is run through and is installed the fifth threaded rod, the internally mounted of packing element has the rock core body.

Preferably, the confining pressure trachea is installed at the top of a holder section of thick bamboo, and thermal-insulated cotton is installed in the outside of a holder section of thick bamboo, and the inside movable mounting of a holder section of thick bamboo has first plunger, and the inside movable mounting of a holder section of thick bamboo has the second plunger, and the second plunger is located the place ahead of first plunger, and a plurality of heat-insulating rings are installed to the outside symmetry of a holder section of thick bamboo.

Preferably, the outer side of the holder cylinder is movably provided with a cylinder cover, the outer side of the cylinder cover is symmetrically provided with first threaded rods, and the inner wall of the front surface of the cylinder cover is provided with a sealing gasket.

Preferably, the front surface of the cylinder cover is provided with an inlet pipe in a penetrating and movable mode, one end of the inlet pipe penetrates through the back surface of the second plunger, and one end of the inlet pipe is provided with a first extrusion frame.

Preferably, a plurality of second threaded rods are symmetrically installed in the outer side of the first extrusion frame in a penetrating mode, a first movable ring is installed on the outer side of the second threaded rods, a first guide frame is installed at one position of the first movable ring, a first guide groove is formed in the back face of the first guide frame in a penetrating mode, a first movable plate is symmetrically and movably installed on the inner side of the first guide frame in a penetrating mode, a third threaded rod is installed in the back face of the first movable plate in a penetrating mode, and the third threaded rod is located on the inner side of the first guide groove.

Preferably, a second guide groove penetrates through the front surface of the second guide frame, and the second guide groove is located on the outer side of the fifth threaded rod.

Preferably, the back surface of the gripper cylinder is provided with a mounting column, and the bottom of the mounting column is provided with a sixth threaded rod in a penetrating way.

Preferably, the back of the mounting column is penetrated and movably provided with a moving rod, the moving rod penetrates through the inner wall of the back of the holder cylinder, and one end of the moving rod is provided with a push block.

Preferably, the sealing rings are symmetrically installed on the outer side of the holder barrel in a penetrating mode, the heat conducting rod is movably installed on the top of the sealing rings in a penetrating mode, the heating device is installed on the top of the heat conducting rod in a penetrating mode, and the temperature sensor is installed on the back face of the heat conducting rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses rotate the fourth threaded rod and drive the second guide frame and extrude the packing element, adjust the position of second movable plate after that, make the second movable plate can be totally to being located the inside partial packing element region of second extrusion frame and extrude comprehensively, further increase the seal of packing element edge, thereby reduce the too big edge from the packing element of rock core body inside fluid pressure and spill over the possibility, make the rock core holder can extrude to the packing element edge that surrounds the rock core body and seal, further reduce the possibility that the fluid flows from packing element edge, avoid the dead volume that the fluid can circulate to increase, make the error of experimental result reduce.

2. The utility model discloses a remove the heat conduction pole and make heat conduction pole and packing element contact after that, open heating device and heat the heat conduction pole, the heat conduction pole gives the packing element heat fast, thereby can be fast to the heating of rock core body, simulate the temperature state of rock core body at the bottom of the earth, observe the temperature of heat conduction pole through temperature sensor, when the high temperature, close heating device and avoid the high temperature to cause the injury to packing element and rock core body, make the rock core holder can heat the rock core body through the heat conduction pole fast, the condition that heat transfer efficiency was low excessively when having avoided passing through the air to rock core body heat transfer in the past.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the heat conducting rod of the present invention;

FIG. 3 is a schematic structural view of a first extrusion frame of the present invention;

FIG. 4 is a schematic structural view of a second extrusion frame of the present invention;

fig. 5 is a schematic structural view of a fourth threaded rod of the present invention;

fig. 6 is a schematic view of the structure of the rubber tube of the present invention.

In the figure: 1. a gripper cylinder; 101. a confining pressure air pipe; 102. heat insulation cotton; 103. a first plunger; 104. a second plunger; 105. an outlet pipe; 106. a heat insulating ring; 2. a cylinder cover; 201. a first threaded rod; 202. a gasket; 3. an inlet pipe; 301. a first extrusion frame; 4. a second threaded rod; 401. a first movable ring; 402. a first guide frame; 403. a first guide groove; 404. a first moving plate; 405. a third threaded rod; 5. a second extrusion frame; 501. a fourth threaded rod; 502. a second movable ring; 503. a second guide frame; 504. a second guide groove; 505. a second moving plate; 506. a fifth threaded rod; 6. a rubber cylinder; 601. a core body; 7. mounting a column; 701. a sixth threaded rod; 8. a travel bar; 801. a push block; 9. a seal ring; 901. a heat conducting rod; 902. a heating device; 903. a temperature sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6, the present invention provides an embodiment: a core holder with good tightness;

the clamp comprises a clamp holder barrel 1, a barrel cover 2, an inlet pipe 3, a second threaded rod 4, a second extrusion frame 5 and a rubber barrel 6, wherein a confining pressure air pipe 101 is arranged at the top of the clamp holder barrel 1, heat insulation cotton 102 is arranged on the outer side of the clamp holder barrel 1, a first plunger 103 is movably arranged in the clamp holder barrel 1, a second plunger 104 is movably arranged in the clamp holder barrel 1, the second plunger 104 is positioned in front of the first plunger 103, a plurality of heat insulation rings 106 are symmetrically arranged on the outer side of the clamp holder barrel 1, the outlet pipe 105 penetrates through the back surface of the clamp holder barrel 1, the clamp holder barrel 1 can provide installation positions for other components of the equipment, so that the other components can be installed, the confining pressure air pipe 101 plays a ventilation role, the rubber barrel 6 can be extruded by adding high-pressure air into the clamp holder barrel 1, the rubber barrel 6 can be closely attached to a core body 601, the heat insulation cotton 102 plays a heat insulation role, the heat generated by the heating device 902 is prevented from being transferred to the holder barrel 1 to cause damage to a human body, the first plunger 103 can drive the first extrusion frame 301 to move forwards by moving forwards, so that the first extrusion frame 301 can extrude and fix the core body 601 to maintain the stability of the core body 601, the second plunger 104 can drive the second extrusion frame 5 to move backwards by moving backwards, so that the second extrusion frame 5 can extrude the front surface of the core body 601, the second extrusion frame 5 and the first extrusion frame 301 can maintain the stability of the core body 601 by extruding the core body 601, the outlet pipe 105 plays a role in discharging fluid, so that water or oil passing through the core body 601 can be discharged, the heat insulation ring 106 plays a role in heat insulation, a worker can be prevented from directly contacting with the heat conduction rod 901, and the outer side of the holder barrel 1 is movably provided with a cover barrel 2, the first threaded rod 201 is symmetrically installed on the outer side of the cylinder cover 2, the sealing gasket 202 is installed on the front inner wall of the cylinder cover 2, the cylinder cover 2 plays a role of sealing the holder cylinder 1, the first threaded rod 201 can extrude the holder cylinder 1 through rotation, so that the stability of the cylinder cover 2 is kept, the cylinder cover 2 is prevented from falling off, the sealing gasket 202 can seal the front opening of the holder cylinder 1 through contact with the front surface of the holder cylinder 1, air leakage is prevented, the inlet pipe 3 is movably installed on the front surface of the cylinder cover 2 in a penetrating manner, one end of the inlet pipe 3 penetrates through the back surface of the second plunger 104, the first extrusion frame 301 is installed at one end of the inlet pipe 3, the inlet pipe 3 plays a role of injecting fluid into the core body 601, so that water or oil can enter the core body 601, the first extrusion frame 301 can fix the core body 601 through extruding the core body 601, and simultaneously pressurize the front surface of the rubber cylinder 6, the front surface of the rubber cylinder 6 can be sealed, the possibility that fluid overflows the rubber cylinder 6 is reduced, a plurality of second threaded rods 4 are symmetrically installed on the outer side of the first extrusion frame 301 in a penetrating manner, a first movable ring 401 is installed on the outer side of each second threaded rod 4, a first guide frame 402 is installed at one position of each first movable ring 401, a first guide groove 403 is formed in the back surface of each first guide frame 402 in a penetrating manner, a first movable plate 404 is symmetrically and movably installed on the inner side of each first guide frame 402, a third threaded rod 405 is installed on the back surface of each first movable plate 404 in a penetrating manner, the third threaded rod 405 is located on the inner side of each first guide groove 403, the second threaded rods 4 can drive the first guide frames 402 to move through rotation, the first movable rings 401 play a role in connecting the second threaded rods 4 and the first guide frames 402, so that the first guide frames 402 can move along with the second threaded rods 4, the first guide frame 402 can extrude and fix the rectangular core bodies 601 with different sizes by moving, the first guide groove 403 can provide a moving space for the movement of the third threaded rods 405, the first moving plate 404 can extrude the rubber cylinders 6 on the outer sides of the rectangular core bodies 601 with different sizes by moving, so that the rubber cylinders 6 are more tightly attached to the core bodies 601, the possibility of overflow of fluid through the edges of the rubber cylinders 6 caused by pressure increase of fluid in the core bodies 601 can be further reduced by matching with high-pressure gas, further the situation of dead volume increase caused by overflow of the fluid from the edges of the rubber cylinders is prevented, the second extrusion frame 5 is installed at one end of the outlet pipe 105, a plurality of fourth threaded rods 501 are symmetrically installed on the outer sides of the second extrusion frame 5 in a penetrating manner, the second movable ring 502 is installed on the outer sides of the fourth threaded rods 501, the second guide frame 503 is installed at the bottom of the second movable ring 502, a second guide groove 504 penetrates through the front surface of the second guide frame 503, the second guide groove 504 is positioned on the outer side of a fifth threaded rod 506, a plurality of second moving plates 505 are symmetrically and movably mounted on the inner side of the second guide frame 503, the fifth threaded rod 506 penetrates through the front surface of the second moving plate 505, the second extrusion frame 5 can seal the back surfaces of the rubber sleeve 6 and the core body 601 by extruding the back surface of the rubber sleeve 6, the fourth threaded rod 501 can drive the second guide frame 503 to move by rotating, the second movable ring 502 has the function of connecting the fourth threaded rod 501 with the second guide frame 503, so that the fourth threaded rod 501 and the second guide frame 503 can move simultaneously, the second guide frame 503 can extrude the outer side of the rubber sleeve 6, so that the rubber sleeve 6 and the core body 601 can be attached more tightly, and the gap between the rubber sleeves 6 and the core body 601 is reduced, and then the possibility that the fluid inside the core body 601 flows out through the contact part with the second extrusion frame 5 is reduced, thereby preventing the occurrence of the situation that the dead volume of the fluid is increased, the second guide groove 504 can provide a mounting position for the fifth threaded rod 506, so that the fifth threaded rod 506 can be mounted, the second moving plate 505 can perform compensation extrusion on the outer area of the rubber sleeve 6 which cannot be pressed by the second guide frame 503 through movement, the sealing performance between the rubber sleeve 6 and the edge of the core body 601 is further increased, the fluid is prevented from overflowing, the fifth threaded rod 506 can drive the second moving plate 505 to move through movement, so that a worker can move the second moving plate 505 conveniently, the core body 601 is mounted inside the rubber sleeve 6, the rubber sleeve 6 plays a role in surrounding the core body 601, the rubber sleeve 6 can be in close contact with the core body 601 under the extrusion of high-pressure gas, the proceeding between the core body 601 and the rubber sleeve 6 is reduced, the size of the dead volume is reduced, the pores inside the core body 601 can provide a flow path for the fluid, and the passing performance of the fluid inside the core body 601 can be conveniently detected.

Referring to fig. 1 and fig. 2, the present invention provides an embodiment: a core holder with good tightness;

the clamp holder comprises an installation column 7, a moving rod 8 and a sealing ring 9, the installation column 7 is installed on the back surface of the clamp holder barrel 1, a sixth threaded rod 701 is installed at the bottom of the installation column 7 in a penetrating mode, the installation column 7 can provide an installation position for the sixth threaded rod 701, the sixth threaded rod 701 can be installed, the moving rod 8 can be extruded and fixed through rotation of the sixth threaded rod 701, the stability of the moving rod 8 is kept, the moving rod 8 is movably installed on the back surface of the installation column 7 in a penetrating mode, the moving rod 8 penetrates through the inner wall of the back surface of the clamp holder barrel 1, a push block 801 is installed at one end of the moving rod 8, the moving rod 8 can drive the push block 801 to move through movement, the push block 801 can extrude the first plunger 103 through forward movement, the first plunger 103 can move forward, the core body 601 can be conveniently pushed out of the clamp holder barrel 1, and the core body 601 and the rubber barrel 6 can be conveniently replaced, the outer side of the holder cylinder 1 is symmetrically provided with a sealing ring 9 in a penetrating manner, the top of the sealing ring 9 is movably provided with a heat conducting rod 901 in a penetrating manner, the top of the heat conducting rod 901 is provided with a heating device 902 in a penetrating manner, the back of the heat conducting rod 901 is provided with a temperature sensor 903, the sealing ring 9 plays a role in sealing, the friction force between the heat conducting rod 901 and the sealing ring 9 can be increased through interference fit between the sealing ring 9 and the heat conducting rod 901, the heat conducting rod 901 is prevented from moving randomly, the stability of the heat conducting rod 901 is improved, the heat conducting rod 901 plays a role in heat conducting, heat generated by the heating device 902 can be transferred to the rubber cylinder 6, the rubber cylinder 6 transfers the heat to the core body 601, the core body 601 can be rapidly heated by entering, the temperature of the core body 601 at the bottom of the ground is simulated, the output end of the heating device 902 is positioned in the heat conducting rod 901 and can transfer the heat to the heat conducting rod 901, temperature sensor 903 can measure the temperature of heat conduction pole 901, makes things convenient for the staff to observe the temperature of heat conduction pole 901, avoids heat conduction pole 901 high temperature to cause destruction to packing element 6.

The working principle is as follows: before using the core holder with good tightness, whether the core holder with good tightness has the problem of influencing use or not is checked, firstly, the moving rod 8 is pushed to push the second plunger 104 out of the holder barrel 1, then the rubber barrel 6 is placed between the second guide frames 503, the back surface of the rubber barrel 6 is in contact with the inner wall of the back surface of the second extrusion frame 5, then, the fourth threaded rod 501 is rotated to drive the second guide frames 503 to extrude the rubber barrel 6, then, the position of the second moving plate 505 is adjusted, so that the second moving plate 505 can completely and completely extrude a part of the area of the rubber barrel 6 inside the second extrusion frame 5, thereby avoiding the phenomenon that the fluid pressure inside the core body 601 is overlarge and overflows from the edge of the rubber barrel 6, further avoiding the phenomenon that the flowing dead volume of the fluid is increased to cause large errors of measurement results, then, the front surface of the rubber barrel 6 is placed inside the first extrusion frame 301, then the second threaded rod 4 is rotated to enable the first guide frame 402 to be in contact with the outer side of the rubber cylinder 6, then the first moving plate 404 is moved to cover the edge of the outer side of the rubber cylinder 6 more comprehensively, the tightness between the rubber cylinder 6 and the core body 601 is increased, the possibility that fluid flows out from the edge of the rubber cylinder 6 is reduced, then the second plunger 104 is pushed to push the core body 601 into the holder barrel 1, then the barrel cover 2 is closed, then the heat conducting rod 901 is moved to enable the heat conducting rod 901 to be in contact with the rubber cylinder 6, the heating device 902 is started to heat the heat conducting rod 901, the heat conducting rod 901 rapidly transfers heat to the rubber cylinder 6, so that the core body 601 can be rapidly heated, the temperature state of the core body 601 at the ground bottom is simulated, the temperature of the heat conducting rod 901 is observed through the temperature sensor 903, when the temperature is too high, the heating device 902 is closed to avoid damage to the rubber cylinder 6 and the core body 601 caused by the too high temperature, then through the inside high-pressure gas that adds of confined pressure trachea 101 to holder section of thick bamboo 1, high-pressure gas pressurizes the packing element 6 is external, increases packing element 6 and core body 601's compactness, reduces the hole between packing element 6 and the core body 601, and then reduces the dead volume, adds the fluid from import pipe 3 afterwards and carries out the displacement experiment, and the fluid is discharged from outlet pipe 105 through core body 601.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims (9)

1. The utility model provides a rock core holder that leakproofness is good, includes holder section of thick bamboo (1), second extrusion frame (5) and packing element (6), its characterized in that: the back of a holder section of thick bamboo (1) runs through movable mounting has outlet pipe (105), second extrusion frame (5) is installed to the one end of outlet pipe (105), the outside symmetry of second extrusion frame (5) runs through and installs a plurality of fourth threaded rods (501), second activity ring (502) is installed in the outside of fourth threaded rod (501), second guide frame (503) are installed to the bottom of second activity ring (502), the inboard symmetry movable mounting of second guide frame (503) has a plurality of second movable plates (505), fifth threaded rod (506) are installed in the front of second movable plate (505) through, the internally mounted of packing element (6) has rock core body (601).

2. The well-sealed core holder as recited in claim 1, wherein: a confining pressure air pipe (101) is installed at the top of the clamp holder barrel (1), heat insulation cotton (102) is installed on the outer side of the clamp holder barrel (1), a first plunger (103) is movably installed inside the clamp holder barrel (1), a second plunger (104) is movably installed inside the clamp holder barrel (1), the second plunger (104) is located in front of the first plunger (103), and a plurality of heat insulation rings (106) are symmetrically installed on the outer side of the clamp holder barrel (1).

3. The well-sealed core holder as recited in claim 1, wherein: the outer side of the holder barrel (1) is movably provided with a barrel cover (2), the outer side of the barrel cover (2) is symmetrically provided with a first threaded rod (201), and the front inner wall of the barrel cover (2) is provided with a sealing gasket (202).

4. The well-sealed core holder as recited in claim 3, wherein: an inlet pipe (3) penetrates through the front surface of the barrel cover (2) and is movably mounted, one end of the inlet pipe (3) penetrates through the back surface of the second plunger (104), and a first extrusion frame (301) is mounted at one end of the inlet pipe (3).

5. The well-sealed core holder as recited in claim 4, wherein: the utility model discloses a quick-witted, including first extrusion frame (301), a plurality of second threaded rods (4) are installed to the outside symmetry of first extrusion frame (301) through, first activity ring (401) are installed in the outside of second threaded rod (4), first guide frame (402) are installed to a department of first activity ring (401), first guide way (403) have been seted up through in the back of first guide frame (402), the inboard symmetry movable mounting of first guide frame (402) has first movable plate (404), the back of first movable plate (404) is run through and is installed third threaded rod (405), and third threaded rod (405) are located the inboard of first guide way (403).

6. The well-sealed core holder as recited in claim 1, wherein: and a second guide groove (504) is formed in the front face of the second guide frame (503) in a penetrating mode, and the second guide groove (504) is located on the outer side of the fifth threaded rod (506).

7. The well-sealed core holder as recited in claim 1, wherein: the back of the holder barrel (1) is provided with a mounting column (7), and the bottom of the mounting column (7) is provided with a sixth threaded rod (701) in a penetrating way.

8. The well-sealed core holder as recited in claim 7, wherein: the back of erection column (7) runs through movable mounting has carriage release lever (8), and carriage release lever (8) run through the back inner wall of holder section of thick bamboo (1), and ejector pad (801) is installed to the one end of carriage release lever (8).

9. The well-sealed core holder as recited in claim 1, wherein: the clamp holder is characterized in that sealing rings (9) are symmetrically installed on the outer side of the clamp holder barrel (1) in a penetrating mode, heat conducting rods (901) are movably installed on the tops of the sealing rings (9) in a penetrating mode, heating devices (902) are installed on the tops of the heat conducting rods (901) in a penetrating mode, and temperature sensors (903) are installed on the back faces of the heat conducting rods (901).

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