CN114260967B - Optical fiber cable positioning and shearing device - Google Patents
Optical fiber cable positioning and shearing device Download PDFInfo
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- CN114260967B CN114260967B CN202111561202.XA CN202111561202A CN114260967B CN 114260967 B CN114260967 B CN 114260967B CN 202111561202 A CN202111561202 A CN 202111561202A CN 114260967 B CN114260967 B CN 114260967B
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- blade
- optical fiber
- cutter holder
- groove
- sliding
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 40
- 238000010008 shearing Methods 0.000 title claims abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to a fiber optic cable positioning and shearing device, which comprises an upper cutter holder, a lower cutter holder and a blade; the upper cutter holder comprises an upper cutter holder body and sliding plates, the tops of the two sliding plates are respectively connected with the upper cutter holder body, and through holes for the optical fiber cables to pass through are formed in the top surface and the bottom surface of the upper cutter holder body; the middle part of the lower cutter holder is provided with a groove for the optical fiber cable to pass through, and the groove penetrates through the top surface and the bottom surface of the lower cutter holder; the two sides of the groove are respectively provided with a knife slot, and the two blades are respectively arranged in the two knife slots; the two sides of the knife groove are respectively provided with a sliding groove, and the two sliding plates are in sliding connection with the two sliding grooves; when the two sliding plates slide upwards, the two sliding plates press the two blades to move relatively so as to cut the optical fiber cable. The invention can shear the optical fiber cable at the fixed point position without influencing the subsequent tie-back of the tubular column.
Description
Technical Field
The invention relates to the technical field of oil and gas downhole testing and well completion tools, in particular to an optical fiber cable positioning and shearing device.
Background
Aiming at the deepwater oil and gas well completion operation process, a well completion sitting pipe column is required to be lowered during the blowout operation so as to establish a blowout flow channel, and underground temperature and pressure data are transmitted to the ground through an optical fiber cable. The pipe column is located and has the tripping function under the emergency condition, when severe sea condition weather occurs during clear spraying, the pipe column is required to be disconnected in an emergency mode, the upper pipe column is required to be pulled out, the optical fiber cable arranged on the outer side of the pipe column is required to be broken in the lifting process, the operation mode is that a weak breaking point is formed on the optical fiber in the past, but in the actual use process, the breaking position is not the position of the advanced setting position, so that excessive optical fiber cables are arranged underground, and the follow-up pipe column tie-back is influenced.
Disclosure of Invention
Aiming at the problems, the invention aims to provide the optical fiber cable positioning and shearing device which can shear the optical fiber cable at the fixed point position without influencing the subsequent pipe string tie-back.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The invention relates to a fiber optic cable positioning and shearing device, which comprises an upper cutter holder, a lower cutter holder and a blade; the upper cutter holder comprises an upper cutter holder body and sliding plates, the tops of the two sliding plates are respectively connected with the upper cutter holder body, and through holes for the optical fiber cables to pass through are formed in the top surface and the bottom surface of the upper cutter holder body; the middle part of the lower cutter holder is provided with a groove for the optical fiber cable to pass through, and the groove penetrates through the top surface and the bottom surface of the lower cutter holder; the two sides of the groove are respectively provided with a knife slot, and the two blades are respectively arranged in the two knife slots; the two sides of the knife groove are respectively provided with a sliding groove, and the two sliding plates are in sliding connection with the two sliding grooves; when the two sliding plates slide upwards, the two sliding plates press the two blades to move relatively so as to cut the optical fiber cable.
In the optical fiber cable positioning and shearing device, preferably, the blade comprises a blade body and a cutter head, wherein the first side edge of the blade body is provided with a first inclined surface, and the first inclined surface enables the blade body to form a shape with a large top and a small bottom; the cutter head is of a cylinder structure formed by protruding the middle part of the cutter body, and the cutting end of the cutter head is provided with a second inclined plane.
In the optical fiber cable positioning and shearing device, preferably, the second inclined planes of the tool bits of the two blades are in the same direction, so that the two tool bits are gradually butted when in cutting.
In the optical fiber cable positioning and shearing device, preferably, the two knife grooves are respectively communicated with the grooves through which the power cables pass through the first notches, and the cutting ends of the two knife heads can respectively extend out of the two first notches so as to cut the optical fiber cables; the two first notches are arranged in a staggered mode, so that the two cutter heads can be contacted during cutting.
In the optical fiber cable positioning and shearing device, preferably, a third inclined plane is arranged on the sliding plate, and the third inclined plane is inclined from one side of the sliding plate to the middle part so as to form a recess; the knife groove is communicated with the sliding groove on the same side through a second notch, and the first inclined surface side of the blade body extends out of the second notch; the third inclined surface of the sliding plate is contacted with the first inclined surface of the blade on the same side, so that when the two sliding plates slide upwards, the two blades are extruded to move relatively.
In the optical fiber cable positioning and shearing device, preferably, the inclination direction and the inclination angle of the third inclined plane are the same as those of the first inclined plane.
The optical fiber cable positioning and shearing device preferably further comprises a spring piece, wherein one end of the spring piece is connected with the side, close to the cutter head, of the blade body, and the other end of the spring piece is connected with the side wall, close to the groove, of the cutter groove.
The optical fiber cable positioning and shearing device preferably further comprises a cover plate, wherein the cover plate is arranged on the lower cutter holder in a covering manner and is fixed with the lower cutter holder through a connecting piece;
the slide plate and the blade are located between the cover plate and the lower blade holder. Due to the adoption of the technical scheme, the invention has the following advantages:
According to the optical fiber cable positioning and shearing device, the optical fiber cable is accurately sheared, and the subsequent back splicing operation is ensured to be smoothly carried out.
Drawings
FIG. 1 is a schematic diagram of a front view of the present invention;
FIG. 2 is a schematic view of the structure of the upper tool holder of the present invention;
FIG. 3 is a schematic view of the structure of the blade of the present invention;
FIG. 4 is a schematic view of the structure of the lower tool holder of the present invention;
Fig. 5 is a schematic perspective view of the present invention.
The reference numerals in the drawings are as follows:
1-an upper tool apron; 101-an upper tool holder body; 102-a skateboard; 2-a lower tool apron; 3-blades; 301-blade body; 302-a cutter head; 4-through holes; 5-grooves; 6-a knife slot; 7-a chute; 8-a first inclined plane; 9-a second inclined plane; 10-a first notch; 11-a third incline; 12-a second notch; 13-cover plate.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the attached drawings, so that the objects, features and advantages of the present invention will be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the invention, but rather are merely illustrative of the true spirit of the invention.
The invention provides a fiber cable positioning and shearing device, which is characterized in that two sliding plates of an upper cutter holder slide in two sliding grooves of a lower cutter holder to extrude two blades to move relatively, so that a fiber cable passing through a groove of the lower cutter holder and a through hole of the upper cutter holder is cut, the cutting position is accurate, and the subsequent back-plugging operation is ensured to be smoothly carried out.
As shown in fig. 1, 2 and 4, the optical fiber cable positioning and shearing device provided by the invention comprises an upper cutter holder 1, a lower cutter holder 2 and a blade 3; the upper tool holder 1 comprises an upper tool holder body 101 and sliding plates 102, wherein the tops of the two sliding plates 102 are respectively connected with the upper tool holder body 101, and through holes 4 (see figure 2) for the optical fiber cables to pass through are formed through the top surface and the bottom surface of the upper tool holder body 101; the middle part of the lower tool apron 2 is provided with a groove 5 for the optical fiber cable to pass through, and the groove 5 penetrates through the top surface and the bottom surface of the lower tool apron 2; the two sides of the groove 5 are respectively provided with a knife groove 6, and the two blades 3 are respectively arranged in the two knife grooves 6; two sides of the two knife grooves 6 which form a whole are respectively provided with a sliding groove 7, and two sliding plates 102 are in sliding connection with the two sliding grooves 7; when the two skids 102 slide upward, the two skids 102 press the two blades 3 to move relatively to cut the optical fiber cable.
In the above embodiment, preferably, as shown in fig. 3, the blade 3 includes the blade body 301 and the cutter head 302, the first side edge of the blade body 301 has the first inclined surface 8, the first inclined surface 8 causes the blade body 301 to form a shape with a large top and a small bottom; the cutter head 302 is a cylindrical structure formed by protruding the middle part of the cutter body 301, and the cutting end of the cutter head 302 is provided with a second inclined plane 9.
In the above embodiment, it is preferable that the second inclined surfaces 9 of the tips 302 of the two blades 3 are the same in direction so that the two tips 302 are gradually butted at the time of cutting.
In the above embodiment, preferably, as shown in fig. 4, two knife slots 6 are respectively communicated with the grooves 5 through which the power cables pass through the first notches 10, and the cutting ends of the two knife heads 302 can respectively extend out from the two first notches 10 to cut the optical fiber cables; the two first notches 10 are offset so that the two tool tips 302 can contact during cutting.
In the above embodiment, preferably, as shown in fig. 2, the slide plate 102 is provided with the third inclined surface 11, and the third inclined surface 11 is inclined from one side of the slide plate 102 to the middle to form a recess; the knife slot 6 is communicated with the slide groove 7 on the same side through a second notch 12 (see fig. 4), and the first inclined surface side of the knife blade body 301 extends out of the second notch 12; the third inclined surface 11 of the sliding plate 102 contacts the first inclined surface 8 of the blade 3 on the same side so that the two sliding plates 102 are pressed to move relatively when sliding upward.
In the above embodiment, it is preferable that the inclination direction and the inclination angle of the third inclined surface 11 are the same as those of the first inclined surface 8. Thereby, the slider 102 and the blade 3 can be mated more tightly.
In the above embodiment, the present invention preferably further includes a spring piece (not shown in the drawings), one end of which is connected to the side of the insert body 301 near the insert head 302, and the other end of which is connected to the side wall of the pocket 6 near the recess 5. When the slide plate 102 slides up to press the blade 3, the spring piece is in a compressed state, and when the slide plate 102 is in the initial position, the spring piece is in an elongated state.
In the above embodiment, preferably, as shown in fig. 5, the present invention further includes a cover plate 13, where the cover plate 13 is disposed on the lower tool holder 2 and is fixed to the lower tool holder 2 by a connecting piece (may be a bolt); the slide 102 and the insert 3 are located between the cover plate 13 and the lower seat 2. Thereby, the cover plate 13 can prevent the sliding plate 102 and the blade 3 from loosening and even falling.
When the optical fiber cable protection device works, the upper cutter holder 1 is fixed on the upper half part of the cable protection cover, the lower cutter holder 2 is fixed on the lower half part of the cable protection cover, and the optical fiber cable sequentially passes through the groove 5 of the lower cutter holder 2 and the through hole 4 of the upper cutter holder 1; when the upper tool holder body 101 of the upper tool holder 1 drives the sliding plates 102 to move upwards when the upper tool holder body needs to be separated, the two sliding plates 102 press the two blades 3 to move relatively through the cooperation of the third inclined surface 11 and the first inclined surface 8 in the upward moving process, and the tool bits 302 of the two blades 3 are gradually butted through the two second inclined surfaces 9, so that the optical fiber cables are cut, wherein the cutting ends of the tool bits 302 are sharp cutting edge structures.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The optical fiber cable positioning and shearing device is characterized by comprising an upper cutter holder, a lower cutter holder and a blade; the upper cutter holder comprises an upper cutter holder body and sliding plates, the tops of the two sliding plates are respectively connected with the upper cutter holder body, and through holes for the optical fiber cables to pass through are formed in the top surface and the bottom surface of the upper cutter holder body;
the middle part of the lower cutter holder is provided with a groove for the optical fiber cable to pass through, and the groove penetrates through the top surface and the bottom surface of the lower cutter holder;
The two sides of the groove are respectively provided with a knife slot, and the two blades are respectively arranged in the two knife slots;
the two sides of the knife groove are respectively provided with a sliding groove, and the two sliding plates are in sliding connection with the two sliding grooves;
when the two sliding plates slide upwards, the two sliding plates press the two blades to move relatively so as to cut the optical fiber cable;
The blade comprises a blade body and a blade head, wherein a first side edge of the blade body is provided with a first inclined surface, and the first inclined surface enables the blade body to form a shape with a large top and a small bottom;
The cutter head is of a cylinder structure formed by protruding the middle part of the cutter body, and the cutting end of the cutter head is provided with a second inclined plane;
the sliding plate is provided with a third inclined plane which is inclined from one side of the sliding plate to the middle part so as to form a recess;
the knife groove is communicated with the sliding groove on the same side through a second notch, and the first inclined surface side of the blade body extends out of the second notch;
The third inclined surface of the sliding plate is contacted with the first inclined surface of the blade on the same side, so that when the two sliding plates slide upwards, the two blades are extruded to move relatively.
2. The fiber optic cable positioning and shearing device as in claim 1, wherein the second beveled surfaces of the tool tips of the two blades are oriented in the same direction so that the two tool tips are progressively butted when cutting.
3. The optical fiber cable positioning and shearing device according to claim 2, wherein the two knife grooves are respectively communicated with the grooves through which the power cables pass through first notches, and cutting ends of the two knife heads can respectively extend out of the two first notches so as to cut the optical fiber cables;
the two first notches are arranged in a staggered mode, so that the two cutter heads can be contacted during cutting.
4. The fiber optic cable positioning and shearing device of claim 1, wherein the direction and angle of inclination of the third ramp is the same as the direction and angle of inclination of the first ramp.
5. The fiber optic cable positioning and shearing device as in claim 1, further comprising a spring tab having one end connected to a side of the blade body adjacent the blade head and another end connected to a side wall of the blade slot adjacent the groove.
6. The fiber optic cable positioning and shearing device as in any of claims 1-5, further comprising a cover plate disposed over said lower blade holder and secured thereto by a connector;
the slide plate and the blade are located between the cover plate and the lower blade holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111561202.XA CN114260967B (en) | 2021-12-16 | 2021-12-16 | Optical fiber cable positioning and shearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111561202.XA CN114260967B (en) | 2021-12-16 | 2021-12-16 | Optical fiber cable positioning and shearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114260967A CN114260967A (en) | 2022-04-01 |
| CN114260967B true CN114260967B (en) | 2024-05-28 |
Family
ID=80827963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111561202.XA Active CN114260967B (en) | 2021-12-16 | 2021-12-16 | Optical fiber cable positioning and shearing device |
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| Country | Link |
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| CN (1) | CN114260967B (en) |
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| CN114260967A (en) | 2022-04-01 |
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