CN115561142A - Rock core holder capable of being changed at adjustable speed - Google Patents
Rock core holder capable of being changed at adjustable speed Download PDFInfo
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- CN115561142A CN115561142A CN202211353870.8A CN202211353870A CN115561142A CN 115561142 A CN115561142 A CN 115561142A CN 202211353870 A CN202211353870 A CN 202211353870A CN 115561142 A CN115561142 A CN 115561142A
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- 239000011435 rock Substances 0.000 title abstract description 14
- 230000000670 limiting effect Effects 0.000 claims description 35
- 238000007789 sealing Methods 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 10
- 230000000712 assembly Effects 0.000 abstract description 5
- 238000000429 assembly Methods 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
The invention discloses a rock core holder capable of being changed at an adjustable speed, which comprises a fixed plate and a movable plate, wherein the fixed plate and the movable plate are connected through an adjusting assembly, a plurality of clamping assemblies are arranged on the fixed plate and the movable plate, each clamping assembly comprises a fixed cylinder and a movable cylinder, a first plug, a second plug, a rubber cylinder and a first ejector rod are arranged in each fixed cylinder, and a pushing assembly is arranged in each movable cylinder; the first end cap, the second end cap and the rubber tube of different diameters can be replaced, so that different cylindrical cores can be replaced according to test requirements, and contrast tests among different cylindrical cores can be realized by arranging a plurality of fixed tubes and moving tubes.
Description
Technical Field
The invention belongs to the technical field of core holders, and particularly relates to a core holder capable of being replaced at an adjustable speed.
Background
The core holder is an instrument used for holding and protecting a rock sample and sealing a cylindrical surface or an end surface (generally an end surface with a reserved fluid inlet and outlet) when the seepage characteristics of the rock sample are measured or a displacement test is carried out in a laboratory, is an indispensable important auxiliary component in the development of experimental instruments, and is often used for applying formation pressure in the laboratory in order to measure the physical properties (porosity, permeability, relative permeability and the like) of the core under the condition of simulating the formation pressure.
The most common rock core holder in the existing rock core analysis is a Hasteller type rock core holder, has the characteristic of convenient use, when a rock sample is loaded and taken out, the rock core holder does not need to be completely disassembled, the lateral wall of the rock sample is sealed by adopting a mode of applying radial pressure on the cylindrical surface of the rock sample, fluid enters from one end face and is discharged from the other end face, and the test is carried out.
The prior art has the following technical problems:
1. the existing core holders need to effectively pressurize samples by holders with special sizes for core manufacturing with different diameters and lengths when in use, cannot be adjusted and replaced according to the lengths, the diameters and the like of the cores, and are inconvenient to use.
2. When the core holder is used for carrying out contrast test on a plurality of cores, a single core needs to be tested independently, then the core is changed to continue the test, the contrast test on the plurality of cores cannot be carried out directly, the time is wasted during the test, and the test phenomenon cannot be directly contrasted during the test.
Disclosure of Invention
It is an object of the present invention to provide an adjustable core holder that solves the problems set forth in the background above.
In order to achieve the purpose, the invention adopts the technical scheme that: an adjustable-speed-replaceable core holder is provided, comprising: the clamping assembly comprises a fixed cylinder and a movable cylinder, the rear end of the fixed cylinder is fixedly connected with the fixed plate, a first plug is arranged at the center of the front end of the fixed cylinder, the front end of the movable cylinder is fixedly connected with the movable plate, a second plug is arranged at the center of the rear end of the movable cylinder, rubber cylinders are sleeved on the outer surfaces of the first plug and the second plug together, a cylindrical core is arranged between the first plug and the second plug, the front end of the adjusting assembly is connected with the center of the movable plate, the rear end of the adjusting assembly is connected with the center of the fixed plate, and the adjusting assembly is used for adjusting the length of the cylindrical core.
Preferably, an annular baffle is arranged in the middle of the fixing barrel, a circular connecting plate is arranged on the front side of the baffle, the center of the front surface of the connecting plate is integrally connected with the first plug, the center of the rear surface of the connecting plate is integrally connected with a connecting shaft, the connecting shaft penetrates through the baffle, the rear end of the connecting shaft is fixedly connected with a connecting hole in the front end of the first ejector rod, liquid outlet holes are formed in the centers of the first plug, the connecting plate, the connecting shaft and the first ejector rod, and the first ejector rod is used for replacing first plugs with different diameters.
Preferably, the moving cylinder comprises a pushing assembly and a second plug inside, the front end of the second plug is connected with the center of the pushing assembly, and liquid inlet holes are formed in the centers of the pushing assembly and the second plug.
Preferably, the pushing assembly comprises a push plate and a second ejector rod, the front surface of the push plate is connected with the second ejector rod, the rear surface of the push plate is connected with the second plug, a plurality of limiting blocks are arranged on the front side of the push plate, limiting holes are formed in the centers of the limiting blocks, limiting shafts are connected in the limiting holes in a sliding mode, the rear ends of the limiting shafts are fixedly connected with the push plate, springs are sleeved on the peripheries of the limiting shafts, the springs are located between the limiting blocks and the push plate, and the second ejector rod is used for replacing second plugs with different diameters.
Preferably, the adjusting assembly comprises a moving column, an adjusting screw and a limiting plate, the front end of the moving column is connected with the center of the moving plate, the outer surface of the moving column is a rectangular column, each surface of the rectangular moving column is provided with the limiting plate, the limiting plate is connected with the moving column in a sliding mode, the rear end of the limiting plate is connected with the fixing plate, the center of the moving column is provided with a threaded through hole, the front side section of the adjusting screw is sleeved in the threaded through hole of the moving column, the rear side end of the adjusting screw penetrates through the fixing plate, and the rear end of the adjusting screw is fixed with the rotating handle.
Preferably, the front end of the outer wall of the fixed cylinder is fixedly provided with a boss, the outer surface of the boss is a conical surface, the rear end of the movable cylinder is provided with a connecting table corresponding to the boss, and the inner surface of the connecting table is correspondingly provided with a conical surface.
Preferably, the rear end of the movable cylinder and the inner surface of the connecting table are both fixed with sealing gaskets, and the sealing gaskets are contacted with the front end of the fixed cylinder and the outer surface of the lug boss.
Preferably, the top of the outer wall of the moving cylinder is provided with a pressurizing hole, and the bottom of the outer wall of the moving cylinder is provided with a pressure relief hole.
Preferably, a first mounting plate is fixed at the rear end of the fixing cylinder, a plurality of mounting holes are uniformly formed in the first mounting plate, mounting bolts are arranged in the mounting holes, a plurality of threaded holes are correspondingly formed in the fixing plate, the threaded holes correspond to the mounting holes one by one, and the mounting bolts are connected with the corresponding threaded holes; the front end of a movable cylinder is fixed with a second mounting plate, a plurality of mounting holes are uniformly formed in the second mounting plate, mounting bolts are arranged in the mounting holes, a plurality of threaded holes are correspondingly formed in the movable plate, the threaded holes correspond to the mounting holes one to one, and the mounting bolts are connected with the corresponding threaded holes.
Preferably, an annular sealing gasket is fixed at the inner side end of the connecting hole, the connecting shaft is in contact with the sealing gasket, and the annular sealing gasket is fixed on the front side face of the baffle and is in contact with the connecting plate through the sealing gasket.
Compared with the prior art, the technical scheme of the invention has the following advantages/beneficial effects:
1. the movable plate is moved through the adjusting assembly, the fixed cylinder is opened, so that the first plug, the second plug and the rubber cylinder with corresponding specifications are installed on the clamping assembly, the movable plate is moved through the moving assembly, the end portions of the fixed cylinder and the moving cylinder are in contact and fixed with each other, the second plug is in contact with the pushing assembly, the position of the second plug is adjusted through the pushing assembly, so that the movable plate is suitable for cylindrical rock cores with different lengths, and tests and the like are carried out through the liquid inlet hole and the liquid outlet hole.
2. The first plug, the second plug and the rubber cylinder with different diameters can be replaced, so that different cylindrical rock cores can be replaced according to test requirements.
3. According to the invention, the comparison test among different cylindrical cores is realized by arranging the plurality of fixed cylinders and the plurality of movable cylinders.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view at A of the present invention;
FIG. 3 is a schematic view of the connection of the fixed cylinder and the movable cylinder according to the present invention;
FIG. 4 is a schematic view of the structure of the present invention at B;
FIG. 5 is a schematic structural view of a fixing cylinder according to the present invention;
fig. 6 is a schematic structural view of the moving cylinder of the present invention.
The labels in the figure are respectively: 1. a fixing plate; 101. adjusting the screw rod; 102. a limiting plate; 103. moving the column; 104. moving the plate; 105. installing a bolt; 106. a threaded hole; 2. a fixed cylinder; 201. a first mounting plate; 202. a first ejector rod; 203. a baffle plate; 204. a boss; 3. moving the drum; 301. a second mounting plate; 302. a second ejector rod; 303. pushing the plate; 304. a limiting shaft; 305. a limiting block; 306. a connecting table; 307. a pressurizing hole; 308. a pressure relief vent; 4. a rubber cylinder; 401. a cylindrical core; 402. a first plug; 403. a second plug; 404. a connecting plate; 405. and (7) connecting the shafts.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, not all of the embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, are within the scope of protection of the present invention. Thus, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.
Example 1:
as shown in fig. 1 to 6, this embodiment 1 proposes a core holder capable of changing at an adjustable speed, including: the clamping device comprises a circular fixed plate 1, a circular moving plate 104, a plurality of clamping assemblies and an adjusting assembly, wherein the plurality of clamping assemblies are uniformly fixed on the fixed plate 1 and the moving plate 104 along the circumferential direction, the direction from the fixed plate 1 to the moving plate 104 is defined as front, the direction from the moving plate 104 to the fixed plate 1 is defined as rear, each clamping assembly comprises a fixed barrel 2 and a moving barrel 3, the rear end of each fixed barrel 2 is fixedly connected with the fixed plate 1, a first plug 402 is arranged at the center of the front end of each fixed barrel 2, the front end of each moving barrel 3 is fixedly connected with the moving plate 104, a second plug 403 is arranged at the center of the rear end of each moving barrel 3, rubber barrels 4 are sleeved on the outer surfaces of the first plugs 402 and the second plugs 403 together, cylindrical cores 401 are arranged between the first plugs 402 and the second plugs 403, the front ends of the adjusting assemblies are connected with the center of the moving plate 104, the rear ends of the adjusting assemblies are connected with the center of the fixed plate 1, and the adjusting assembly is used for adjusting the length of the cylindrical cores 401.
An annular baffle plate 203 is arranged in the middle of a fixed cylinder 2, a round connecting plate 404 is arranged on the front side of the baffle plate 203, the center of the front surface of the connecting plate 404 is integrally connected with a first plug 402, the center of the rear surface of the connecting plate 404 is integrally connected with a connecting shaft 405, the connecting shaft 405 penetrates through the baffle plate 203, the rear end of the connecting shaft 405 is fixedly connected with a connecting hole in the front end of a first ejector rod 202, liquid outlet holes are formed in the centers of the first plug 402, the connecting plate 404, the connecting shaft 405 and the first ejector rod 202, and the first ejector rod 202 is used for replacing first plugs 402 with different diameters.
The moving cylinder 3 comprises a pushing component and a second plug 403 inside, the front end of the second plug 403 is connected with the center of the pushing component, and liquid inlet holes are formed in the centers of the pushing component and the second plug 403. The promotion subassembly includes push pedal 303 and second ejector pin 302, the front surface and the second ejector pin 302 of push pedal 303 are connected, the rear surface and the second end cap 403 of push pedal 303 are connected, the front side of push pedal 303 is provided with several stopper 305, the center of stopper 305 is provided with spacing hole, sliding connection has spacing axle 304 in the spacing hole, and the rear end and the push pedal 303 fixed connection of spacing axle 304, the cover is equipped with the spring around the spacing axle 304, the spring is located between stopper 305 and the push pedal 303, second ejector pin 302 is used for changing the second end cap 403 of different diameters. The top of the outer wall of the moving cylinder 3 is provided with a pressurizing hole 307, and the bottom is provided with a pressure relief hole 308.
When the cylindrical cores 401 need to be installed in the plurality of fixed barrels 2, the movable plate 104 drives the movable barrel 3 to move towards the front side through the adjusting assembly, the clamping assembly is opened, the connecting shaft 405 on the first plug 402 with the corresponding specification penetrates through the baffle 203 and is connected with the connecting hole of the first ejector rod 202, the connecting plate 404 moves towards the baffle 203, meanwhile, the first ejector rod 202 is rotated, the connecting shaft 405 is screwed into the connecting hole, and the connecting plate 404 is tightly pressed on the baffle 203 through the action of threads, so that the positions of the first plug 402 and the connecting plate 404 are fixed;
the rubber sleeve 4 is located on the outer side of the first plug 402, the other end of the rubber sleeve is connected with the second plug 403, the cylindrical core 401 is located between the first plug 402 and the second plug 403, the moving plate 104 and the moving cylinder 3 are moved towards the rear side through the moving assembly, the second plug 403 enters the moving cylinder 3 and is in contact with the pushing assembly, then the ends of the fixed cylinder 2 and the moving cylinder 3 are in contact and fixed with each other, the position of the second plug 403 is adjusted through the pushing assembly, the rubber sleeve is suitable for the cylindrical cores 401 with different lengths, tests are conducted through the liquid inlet hole and the liquid outlet hole, and the like.
When the cylindrical cores 401 with different diameters need to be replaced, the fixed cylinder 2 and the movable cylinder 3 are opened, the first plug 402 with the corresponding diameter, the second plug 403 and the rubber cylinder 4 are replaced, the connecting plate 404 connected with the first plug 402 with the different diameters is the same as the connecting shaft 405, the first plugs 402 with different specifications are connected into the fixed cylinder 2, different cylindrical cores 401 are replaced according to test requirements, and a plurality of fixed cylinders 2 and movable cylinders 3 are arranged on the fixed plate and the movable plate, so that a contrast test between different cylindrical cores 401 is realized.
When the movable barrel 3 is connected with the fixed barrel 2, the second plug 403 is in contact with the push plate 303 and drives the compression spring to move towards the front side, then the second ejector rod 302 is rotated, the rear side end of the second ejector rod 302 is in contact with the push plate 303 and drives the push plate 303 and the second plug 403 to move towards the rear side, and therefore the position of the second plug 403 is adjusted according to the cylindrical core 401, and the cylindrical cores 401 with different lengths can be adapted.
The adjusting assembly comprises a moving column 103, an adjusting screw 101 and a limiting plate 102, wherein the front end of the moving column 103 is connected with the center of a moving plate 104, the outer surface of the moving column 103 is a rectangular column, each surface of the rectangular moving column 103 is provided with the limiting plate 102, the limiting plate 102 is connected with the moving column 103 in a sliding manner, the rear end of the limiting plate 102 is connected with a fixed plate 1, the center of the moving column 103 is provided with a threaded through hole, the front side section of the adjusting screw 101 is sleeved in the threaded through hole of the moving column 103, the rear side end of the adjusting screw 101 penetrates through the fixed plate 1, and the rear end of the adjusting screw 101 is fixed with a rotating handle.
When the positions of the moving plate 104, the moving cylinder 3 and other structures need to be adjusted, the adjusting screw 101 is rotated through the rotating handle, and the moving column 103 drives the moving plate 104 to move outwards or inwards through the limiting effect of the limiting plate 102, so that the position adjustment is realized.
An annular sealing gasket is fixed at the inner side end of the connecting hole, the inner side end of the connecting shaft 405 is in contact with the sealing gasket, the sealing performance between the connecting shaft 405 and the first ejector rod 202 is improved through the sealing gasket, the annular sealing gasket is fixed on the front side face of the baffle plate 203 and is in contact with the connecting plate 404 through the sealing gasket, and the sealing performance between the connecting plate 404 and the baffle plate 203 is improved.
Example 2:
the structure of this embodiment is substantially the same as that of the first embodiment, except that a first mounting plate 201 is fixed to the rear side end of the fixed cylinder 2, a plurality of mounting holes are uniformly formed in the first mounting plate 201 along the circumferential direction, mounting bolts 105 are arranged in the mounting holes, a plurality of threaded holes 106 are correspondingly formed in the fixed plate 1, the threaded holes 106 correspond to the mounting holes one to one, the mounting bolts 105 are connected to the corresponding threaded holes 106, a second mounting plate 301 is fixed to the front side end of the movable cylinder 3, a plurality of mounting holes are uniformly formed in the second mounting plate 301 along the circumferential direction, the mounting bolts 105 are arranged in the mounting holes, a plurality of threaded holes 106 are correspondingly formed in the movable plate 104, the threaded holes 106 correspond to the mounting holes one to one, the mounting bolts 105 are connected to the corresponding threaded holes 106, and the fixed cylinder 105, the fixed cylinder 2, the fixed plate 1, the movable cylinder 3 and the movable plate 104 are detachably connected through the mounting holes, the threaded holes 106 and the mounting bolts 105, so that the fixed cylinder 2 and the movable cylinder 3 can be maintained and replaced.
Example 3:
the structure of this embodiment is basically the same as that of the first embodiment, the difference lies in that the boss 204 is fixed at the front end of the outer side wall of the fixed cylinder 2, the outer side surface of the boss 204 is provided with a conical surface, the connecting platform 306 is correspondingly fixed at the rear side end of the movable cylinder 3, and the conical surface is correspondingly arranged on the inner side wall of the connecting platform 306, the sealing gaskets are fixed on the rear side end of the movable cylinder 3 and the inner side wall of the connecting platform 306, and are contacted with the front end of the fixed cylinder 2 and the outer side wall of the boss 204 through the sealing gaskets, when the fixed cylinder 2 is contacted with the movable cylinder 3, the sealing performance of the joint is improved through the squeezing action of the connecting platform 306 and the boss 204 and the sealing gaskets.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and should be considered to be within the scope of the invention.
Claims (10)
1. A core holder capable of being replaced at an adjustable speed, comprising: the clamping assembly comprises a fixed cylinder and a movable cylinder, the rear end of the fixed cylinder is fixedly connected with the fixed plate, a first plug is arranged at the center of the front end of the fixed cylinder, the front end of the movable cylinder is fixedly connected with the movable plate, a second plug is arranged at the center of the rear end of the movable cylinder, rubber cylinders are sleeved on the outer surfaces of the first plug and the second plug together, a cylindrical core is arranged between the first plug and the second plug, the front end of the adjusting assembly is connected with the center of the movable plate, the rear end of the adjusting assembly is connected with the center of the fixed plate, and the adjusting assembly is used for adjusting the length of the cylindrical core.
2. The core holder capable of being changed at an adjustable speed according to claim 1, wherein an annular baffle is arranged in the middle of the fixed cylinder, a circular connecting plate is arranged on the front side of the baffle, the center of the front surface of the connecting plate is integrally connected with the first plug, the center of the rear surface of the connecting plate is integrally connected with a connecting shaft, the connecting shaft penetrates through the baffle, the rear end of the connecting shaft is fixedly connected with a connecting hole in the front end of the first ejector rod, liquid outlet holes are formed in the centers of the first plug, the connecting plate, the connecting shaft and the first ejector rod, and the first ejector rod is used for changing the first plugs with different diameters.
3. The core holder capable of being replaced at an adjustable speed according to claim 1, wherein the moving cylinder comprises a pushing assembly and a second plug inside, the front end of the second plug is connected with the center of the pushing assembly, and liquid inlet holes are formed in the pushing assembly and the center of the second plug.
4. The core holder capable of being changed at an adjustable speed according to claim 3, wherein the pushing assembly comprises a push plate and a second ejector rod, the front surface of the push plate is connected with the second ejector rod, the rear surface of the push plate is connected with a second plug, a plurality of limiting blocks are arranged on the front side of the push plate, limiting holes are formed in the centers of the limiting blocks, limiting shafts are connected in the limiting holes in a sliding mode, the rear ends of the limiting shafts are fixedly connected with the push plate, springs are sleeved on the peripheries of the limiting shafts and located between the limiting blocks and the push plate, and the second ejector rod is used for changing the second plugs with different diameters.
5. The core holder capable of being changed at an adjustable speed according to claim 1, wherein the adjusting assembly comprises a moving column, an adjusting screw and a limiting plate, the front end of the moving column is connected with the center of the moving plate, the outer surface of the moving column is a rectangular column, each surface of the rectangular moving column is provided with the limiting plate, the limiting plate is connected with the moving column in a sliding manner, the rear end of the limiting plate is connected with a fixed plate, the center of the moving column is provided with a threaded through hole, the front side section of the adjusting screw is sleeved in the threaded through hole of the moving column, the rear side end of the adjusting screw penetrates through the fixed plate, and the rear end of the adjusting screw is fixed with a rotating handle.
6. The core holder capable of being replaced at an adjustable speed as claimed in claim 1, wherein a boss is fixed at the front end of the outer wall of the fixed cylinder, the outer surface of the boss is a conical surface, a connecting table is arranged at the rear end of the movable cylinder corresponding to the boss, and a conical surface is correspondingly arranged on the inner surface of the connecting table.
7. The adjustable-speed replaceable core holder as claimed in claim 6, wherein the back end of the moving cylinder and the inner surface of the connecting table are fixed with sealing gaskets, and the sealing gaskets are in contact with the front end of the fixed cylinder and the outer surface of the boss.
8. The adjustable-speed replaceable core holder as claimed in claim 3, wherein the top of the outer wall of the moving cylinder is provided with a pressurizing hole, and the bottom of the outer wall of the moving cylinder is provided with a pressure relief hole.
9. The core holder capable of being changed at an adjustable speed according to claim 1, wherein a first mounting plate is fixed at the rear end of the fixed cylinder, a plurality of mounting holes are uniformly formed in the first mounting plate, mounting bolts are arranged in the mounting holes, a plurality of threaded holes are correspondingly formed in the fixed plate, the threaded holes correspond to the mounting holes one to one, and the mounting bolts are connected with the corresponding threaded holes; the front end of a movable cylinder is fixed with a second mounting plate, a plurality of mounting holes are uniformly formed in the second mounting plate, mounting bolts are arranged in the mounting holes, a plurality of threaded holes are correspondingly formed in the movable plate, the threaded holes correspond to the mounting holes one to one, and the mounting bolts are connected with the corresponding threaded holes.
10. The core holder capable of being replaced at an adjustable speed according to claim 2, wherein an annular sealing gasket is fixed at the inner side end of the connecting hole, the connecting shaft is in contact with the sealing gasket, and the annular sealing gasket is fixed on the front side surface of the baffle and is in contact with the connecting plate through the sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211353870.8A CN115561142A (en) | 2022-11-01 | 2022-11-01 | Rock core holder capable of being changed at adjustable speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211353870.8A CN115561142A (en) | 2022-11-01 | 2022-11-01 | Rock core holder capable of being changed at adjustable speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115561142A true CN115561142A (en) | 2023-01-03 |
Family
ID=84769671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211353870.8A Pending CN115561142A (en) | 2022-11-01 | 2022-11-01 | Rock core holder capable of being changed at adjustable speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115561142A (en) |
-
2022
- 2022-11-01 CN CN202211353870.8A patent/CN115561142A/en active Pending
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