CN115507799A - Telescopic centering device - Google Patents
Telescopic centering device Download PDFInfo
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- CN115507799A CN115507799A CN202211285029.XA CN202211285029A CN115507799A CN 115507799 A CN115507799 A CN 115507799A CN 202211285029 A CN202211285029 A CN 202211285029A CN 115507799 A CN115507799 A CN 115507799A
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- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims description 20
- 230000005489 elastic deformation Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 4
- 238000012937 correction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
- G01B21/14—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters internal diameters
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Abstract
The invention discloses a telescopic centering device in the technical field of centering equipment, and aims to solve the problems that a centering device in the prior art is complex in operation, poor in universality and incapable of ensuring centering precision. The device comprises a positioning pipe, wherein the positioning pipe is detachably connected with a supporting pipe through a connecting mechanism; at least three guide pipes are arranged outside the support pipe, movable shafts are movably sleeved in the guide pipes, one ends of the movable shafts extend into the support pipe and are provided with planetary gears, and the other ends of the movable shafts are in threaded connection with supporting legs; one side of the supporting pipe close to the hollow pipe is rotatably connected with a toothed ring, and an elastic mechanism is arranged between the movable shaft and the guide pipe; according to the invention, the universality of the centering device is improved through the matching of the front end and the rear end, the centering precision is further improved through mutual correction of the two ends, and the planetary gear and the gear ring tend to fall off when the supporting force on the supporting leg reaches a certain degree through the elastic mechanism, so that the supporting force of the supporting leg just reaches the best and keeps equal, and the centering precision is effectively improved.
Description
Technical Field
The invention relates to the technical field of centering equipment, in particular to a telescopic centering device.
Background
In recent years, scholars at home and abroad design various centering systems for different pipelines. Post and Sheiretov, etc. propose centering systems that utilize elastic elements to store energy; bloom and the like design adjustable sliding centering mechanisms; guerrero et al developed six-link based centering systems for pulling down downhole equipment for irregular cased wells; the Baixianglin and the like design an offset type automatic centering mechanism for a horizontal well oil pipe; a method for synchronously centering by using a double-cone main shaft is researched by a chechen sword and the like and is used for automatically measuring the large-size inner diameter of more than 500 mm; aiming at a micro pipeline with the inner diameter of 15-20 mm, such as slow follow start, three adjusting mechanisms of a cam push rod, a worm gear and a screw-nut pair are designed, and the advantages and the disadvantages of the three adjusting mechanisms are relatively analyzed; zhengli appraisal designs an elastic umbrella-shaped centering mechanism aiming at the measurement of the inner diameter of the cannon barrel.
However, the existing centering device is complex in operation and use, poor in universality, incapable of effectively ensuring centering precision and poor in actual use effect.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a telescopic centering device, which solves the problems that the existing centering device is complex to operate and use, poor in universality and incapable of effectively ensuring the centering precision.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme:
the invention provides a telescopic centering device, comprising: the positioning pipe is detachably connected with the supporting pipe through a connecting mechanism, and the axes of the positioning pipe and the supporting pipe are overlapped;
at least three guide pipes are arranged outside the supporting pipe, movable shafts are movably sleeved in the guide pipes, one ends of the movable shafts extend into the supporting pipe and are provided with planetary gears, the other ends of the movable shafts are in threaded connection with supporting legs, and the axes of the movable shafts, the planetary gears and the supporting legs are overlapped and are perpendicular to the axis of the supporting pipe;
one side of the supporting pipe close to the hollow pipe is rotatably connected with a toothed ring, an elastic mechanism is arranged between the movable shaft and the guide pipe, and the planetary gear is meshed with the toothed ring under the elastic action of the elastic mechanism.
Further, still including actuating mechanism, actuating mechanism includes the transmission shaft, the one end of transmission shaft is equipped with spacing recess, and the other end is equipped with the connecting plate, connecting plate and ring gear fixed connection, the axis of spacing recess, transmission shaft and ring gear coincides mutually.
Furthermore, the connecting mechanism is a hollow pipe, one end of the hollow pipe is in threaded connection with the supporting pipe, the other end of the hollow pipe is fixedly connected with the positioning pipe, and the positioning pipe, the hollow pipe and the supporting pipe are communicated with each other and the axes of the positioning pipe, the hollow pipe and the supporting pipe coincide.
Furthermore, a first bearing is arranged in the guide pipe, the movable shaft is movably sleeved in the first bearing, a second bearing is arranged in the hollow pipe, and the transmission shaft is movably sleeved in the second bearing.
Furthermore, one side of the positioning pipe, which is far away from the supporting pipe, is provided with a holding pipe, and the diameter of the holding pipe is larger than that of the positioning pipe.
Furthermore, a plurality of expansion grooves which are distributed in sequence in the circumferential direction are formed in the front end of the holding pipe, the expansion grooves radially penetrate through the pipe wall and extend towards the positioning pipe, and therefore the positioning pipe is divided into a plurality of elastic deformation portions.
Furthermore, the one end that the loose axle was kept away from to the landing leg is equipped with the supporting disk, be equipped with on the supporting disk and be used for the arc arch of laminating mutually with the pipeline inner wall.
Furthermore, the elastic mechanism comprises a disc spring, a limiting ring is arranged on the movable shaft, and the disc spring is supported between the limiting ring and the guide pipe.
Furthermore, the number of the guide pipes is three, and the guide pipes are evenly distributed on the outer wall of the supporting pipe.
Furthermore, a through hole is formed in the movable shaft, an internal thread is formed in the through hole, an external thread is arranged on the supporting leg, and the external thread is meshed with the internal thread.
Compared with the prior art, the invention has the following beneficial effects:
1. the front end of the positioning pipe is supported by the positioning pipe, the positioning pipes with different pipe diameters can be installed according to requirements, the rear end telescopic supporting leg can realize large-range telescopic movement, the front end and the rear end are matched to improve the universality of the centering device, and meanwhile, the centering precision is further improved by mutual correction of the front end and the rear end;
2. the invention drives the planet gear to rotate through the gear ring, and then drives the movable shaft to make the movable shaft and the supporting leg rotate relatively, so that the extension and retraction of the supporting leg are kept consistent, and the centering precision is improved again;
3. according to the invention, the wrench is clamped with the limiting groove, so that the transmission shaft can be driven to rotate by the wrench, and the transmission shaft can drive the toothed ring to rotate by the connecting plate after rotating, therefore, the driving of the toothed ring can be conveniently and rapidly completed, and the gear box is simple to operate, convenient to use and good in effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a telescopic centering device provided in an embodiment of the present invention;
FIG. 2 is a schematic view of a first bearing of the telescopic centering device of FIG. 1;
FIG. 3 is a schematic view of the telescoping centering device of FIG. 1 in a collapsed configuration;
FIG. 4 is a schematic view of the drive mechanism of the telescopic centering device of FIG. 1;
FIG. 5 is a schematic view of the installation of the second bearing of the telescopic centering device shown in FIG. 1;
FIG. 6 is a schematic view of the movable shaft of the telescopic centering device of FIG. 1;
in the figure: 1. a positioning tube; 2. a hollow tube; 3. supporting a pipe; 4. a guide tube; 5. a movable shaft; 6. a planetary gear; 7. a support leg; 8. a toothed ring; 9. a disc spring; 10. a drive shaft; 101. a limiting groove; 11. a connecting plate; 12. a first bearing; 13. a second bearing; 14. gripping the tube; 15. an expansion tank; 16. a support disc; 17. a limiting ring.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 by those of ordinary skill in the art through specific situations.
The first embodiment is as follows:
as shown in fig. 1, an embodiment of the present invention provides a telescopic centering device, including: the positioning tube 1 is detachably connected with the supporting tube 3 through a connecting mechanism, and the axes of the positioning tube 1 and the supporting tube 3 are coincided; at least three guide pipes 4 are arranged outside the support pipe 3, a movable shaft 5 is movably sleeved in each guide pipe 4, one end of each movable shaft 5 extends into the support pipe 3 and is provided with a planetary gear 6, the other end of each movable shaft 5 is in threaded connection with a support leg 7, and the axes of the movable shaft 5, the planetary gear 6 and the support leg 7 are overlapped and are perpendicular to the axis of the support pipe 3; a toothed ring 8 is rotatably connected to one side, close to the hollow tube 2, in the supporting tube 3, an elastic mechanism is arranged between the movable shaft 5 and the guide tube 4, and under the elastic force action of the elastic mechanism, the planetary gear 6 is meshed with the toothed ring 8.
Before the use, dismantle registration arm 1 to change the registration arm 1 with pipeline inner wall diameter unanimity, then manual adjustment landing leg 7's elasticity makes it extend to slightly to be greater than the pipeline internal diameter.
After the device is fed into the interior of the pipeline, the front end of the pipeline is supported by the positioning pipe 1, and the rear end of the pipeline is supported by the supporting legs 7; because the degree of expansion and contraction of the supporting legs 7 is adjusted to be slightly larger than the inner diameter of the pipeline, after the supporting legs 7 are placed in the inner wall of the pipeline, the supporting legs 7 can be compressed in a small range, so that the movable shaft 5 is driven to apply acting force to the elastic mechanism, the elastic mechanism is compressed or stretched, reverse acting force is generated, the reverse acting force is transmitted to the supporting legs 7 through the movable shaft 5, and the supporting legs 7 apply pressure to the inner wall of the pipeline to a certain degree in an initial state.
During centering, drive ring gear 8 rotates, and then ring gear 8 drives planetary gear 6 and rotates, planetary gear 6 drives loose axle 5 and rotates, because the pressure of certain degree is applyed to pipeline inner wall to landing leg 7 before this, consequently, landing leg 7 can receive the effect of frictional force, thereby restriction landing leg 7 follows loose axle 5 and rotates in step, so relative rotation will appear between landing leg 7 and the loose axle 5, again because threaded connection's characteristic, still will produce axial relative displacement between the two, and because landing leg 7 has pushed up on pipeline inner wall, can't extend again, so can only be loose axle 5 to the stay tube 3 carry out axial motion. In the process, the movable shaft 5 further compresses or stretches the elastic mechanism, so that the reverse acting force generated by the elastic mechanism is gradually increased, the force of the supporting legs 7 against the inner wall of the pipeline is gradually increased, and simultaneously, the movable shaft 5 drives the planetary gear 6 to axially move towards the inside of the supporting pipe 3, so that the gear ring 8 and the planetary gear 6 are gradually disengaged. When the planet gear 6 moves axially to fall off the gear ring 8, the gear ring 8 idles, the planet gear 6 is in a state of being tightly attached to the gear ring 8 but not meshed with the gear ring, the force of the supporting leg 7 corresponding to the planet gear 6 against the inner wall of the pipeline is not increased any more, and the centering operation of the device is finished. Therefore, the force of the plurality of supporting legs 7 against the inner wall of the pipeline can be guaranteed to be equal, the extending lengths of the supporting legs are kept consistent, and the centering precision is effectively improved.
When the device is taken out from the inner wall of the pipeline, the reverse driving gear ring 8 rotates, due to the action of the elastic mechanism, the planetary gear 6 can be subjected to an axial force, so that the planetary gear and the gear ring 8 are kept in a tightly attached state, therefore, the gear ring 8 drives the planetary gear 6 to slightly rotate in the rotating process, the planetary gear 6 rotates to drive the movable shaft 5 to rotate, the movable shaft 5 drives the planetary gear 6 to axially displace, the planetary gear 6 is further attached to the gear ring 8, the operation is repeated, and the planetary gear 6 is gradually engaged with the gear ring 8. The movable shaft 5 continues to move axially and the compression or tension on the elastic means is released, so that the force of the legs 7 against the inner wall of the pipe is gradually reduced, and the device can be taken out of the inner wall of the pipe when the legs 7 can no longer rotate relative to the movable shaft 5.
This embodiment has increased contact fixed area through fixing two sections front and back at the pipeline inner wall to can improve centering precision, the registration arm 1 of different pipe diameters can be installed according to the demand to front end registration arm 1 supports, and the flexible landing leg 7 in rear end can realize stretching out and drawing back on a relatively large scale, and the cooperation of front and back both ends is when improving this centering device commonality, and the both ends are rectified mutually and have also further improved centering precision.
In addition, the supporting legs 7 are consistent in stretching and retracting, the centering precision can be improved, and the elastic mechanism is arranged, so that when the supporting force on the supporting legs 7 reaches a certain degree, the planet gears 6 and the gear ring 8 tend to fall off, the supporting force of the supporting legs 7 against the inner wall of the pipeline can be ensured to be optimal and equal, and the centering precision is effectively improved.
It should be noted that too small supporting force of the supporting legs 7 against the inner wall of the pipeline can cause the device to be easily loosened, so that the centering precision is reduced; too large a supporting force may cause the inner wall of the pipe to be crushed and deformed, thereby causing the device to be deviated, and also causing the centering accuracy to be lowered.
In this embodiment, as shown in fig. 4, the driving device further includes a driving mechanism, the driving mechanism includes a transmission shaft 10, one end of the transmission shaft 10 is provided with a limiting groove 101, the other end of the transmission shaft 10 is provided with a connecting plate 11, the connecting plate 11 is fixedly connected with the toothed ring 8, and the axes of the limiting groove 101, the transmission shaft 10 and the toothed ring 8 coincide with each other.
Specifically, when centering, pass hollow tube 2 with the spanner, make it and spacing recess 101 looks block, then rotate the spanner, the spanner will drive transmission shaft 10 and rotate, transmission shaft 10 rotates and will drive ring gear 8 through connecting plate 11 and rotate. In this way, the driving of the gear ring 8 can be completed quickly, and the gear ring driving device is simple to operate, convenient to use and good in effect.
In this embodiment, the connecting mechanism is a hollow tube 2, one end of the hollow tube 2 is in threaded connection with the support tube 3, the other end of the hollow tube 2 is fixedly connected with the positioning tube 1, and the positioning tube 1, the hollow tube 2 and the support tube 3 are communicated with each other and have coincident axes.
Specifically, hollow tube 2's structural strength is high, can reduce the stress concentration at both ends, has prolonged the life of device, and can also can dismantle with stay tube 3 through threaded connection's mode and be connected, and the dismouting of being convenient for has improved change efficiency.
In this embodiment, a first bearing 12 is disposed in the guiding tube 4, the movable shaft 5 is movably sleeved in the first bearing 12, a second bearing 13 is disposed in the hollow tube 2, and the transmission shaft 10 is movably sleeved in the second bearing 13.
It can be understood that the first bearing 12 can reduce the friction force received by the movable shaft 5 during the rotation process, so as to improve the stretching fluency of the supporting leg 7, as shown in fig. 5, the second bearing 13 can support the transmission shaft 10, so as to avoid the deviation of the transmission shaft 10, and improve the driving effect.
In the present embodiment, a holding tube 14 is provided on the side of the positioning tube 1 away from the support tube 3, and the diameter of the holding tube 14 is larger than that of the positioning tube 1.
During centering, an operator can conveniently push the device into the pipeline by holding the pipe 14 with hands; after centering, the device can be easily removed from the pipeline by pulling the holding tube 14, which is convenient for use.
Preferably, a plurality of expansion grooves 15 are formed in the front end of the holding tube 14 and distributed in sequence in the circumferential direction, and the expansion grooves 15 radially penetrate through the tube wall and extend towards the positioning tube 1, so that the positioning tube 1 is divided into a plurality of elastic deformation parts.
Specifically, when the hollow pipe 2 is extended into the pipeline, each elastic deformation part is extruded, so that elastic deformation is generated, and the elastic deformation part is tightly attached to the inner wall of the pipeline, and the centering precision is improved; in addition, the hollow pipe 2 can be conveniently stretched into or taken out through elastic deformation, and severe friction between the hollow pipe 2 and the inner wall of the pipeline when the hollow pipe is stretched into or taken out is avoided.
The second embodiment:
as shown in fig. 1 and fig. 3, the present embodiment provides a telescopic centering device, which is different from the first embodiment in that one end of the supporting leg 7 away from the movable shaft 5 is provided with a supporting plate 16, and the supporting plate 16 is provided with an arc-shaped protrusion for fitting with the inner wall of the pipeline.
Specifically, the supporting disk 16 is used for increasing the contact area between the supporting leg 7 and the inner wall of the pipeline, so that the supporting stability of the supporting leg 7 is improved, and the static friction force borne by the supporting leg 7 is increased, thereby facilitating the extension and retraction. The arc is protruding to make 16 laminating with the pipeline inner wall of supporting disk more abundant, makes area of contact increase, has further improved above-mentioned effect.
In this embodiment, the elastic mechanism includes a disc spring 9, a limiting ring 17 is disposed on the movable shaft 5, and the disc spring 9 is supported between the limiting ring 17 and the guide tube 4. But not limited thereto, the elastic mechanism may be a compression spring, and is not particularly limited thereto.
In this embodiment, three guide tubes 4 are provided and are uniformly arranged on the outer wall of the support tube 3. Specifically, three guide tubes 4 can not only perform stable centering, but also can not lead to the device structure being too complex, and the comprehensive effect is optimal.
In the present embodiment, as shown in fig. 6, the movable shaft 5 is provided with a through hole, an internal thread is provided in the through hole, and the leg 7 is provided with an external thread, which is engaged with the internal thread.
Specifically, the leg 7 is screwed into and out of the through hole by being connected to the through hole by external threads and internal threads.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (10)
1. A telescopic centering device, characterized in that it comprises: the positioning pipe (1) is detachably connected with the supporting pipe (3) through a connecting mechanism, and the axes of the positioning pipe (1) and the supporting pipe (3) are coincided;
at least three guide pipes (4) are arranged outside the support pipe (3), a movable shaft (5) is movably sleeved in each guide pipe (4), one end of each movable shaft (5) extends into the support pipe (3) and is provided with a planetary gear (6), the other end of each movable shaft is in threaded connection with a support leg (7), and the axes of the movable shafts (5), the planetary gears (6) and the support legs (7) are overlapped and are perpendicular to the axis of the support pipe (3);
one side of the supporting tube (3) close to the hollow tube (2) is rotatably connected with a toothed ring (8), an elastic mechanism is arranged between the movable shaft (5) and the guide tube (4), and the planetary gear (6) is meshed with the toothed ring (8) under the elastic force action of the elastic mechanism.
2. The telescopic centering device according to claim 1, further comprising a driving mechanism, wherein the driving mechanism comprises a transmission shaft (10), one end of the transmission shaft (10) is provided with a limiting groove (101), the other end of the transmission shaft is provided with a connecting plate (11), the connecting plate (11) is fixedly connected with the toothed ring (8), and the axes of the limiting groove (101), the transmission shaft (10) and the toothed ring (8) are coincident.
3. The telescopic centering device according to claim 2, wherein the connecting mechanism is a hollow tube (2), one end of the hollow tube (2) is connected with the supporting tube (3) by screw thread, the other end is fixedly connected with the positioning tube (1), and the positioning tube (1), the hollow tube (2) and the supporting tube (3) are communicated with each other and have coincident axes.
4. The telescopic centering device according to claim 3, wherein a first bearing (12) is arranged in the guide tube (4), the movable shaft (5) is movably sleeved in the first bearing (12), a second bearing (13) is arranged in the hollow tube (2), and the transmission shaft (10) is movably sleeved in the second bearing (13).
5. Telescopic centering device according to claim 3, wherein the side of the positioning tube (1) facing away from the support tube (3) is provided with a grip tube (14), the diameter of the grip tube (14) being larger than the diameter of the positioning tube (1).
6. The telescopic centering device according to claim 7, wherein the front end of the holding tube (14) is provided with a plurality of expansion grooves (15) which are distributed in sequence in the circumferential direction, and the expansion grooves (15) radially penetrate through the tube wall and extend towards the positioning tube (1) so as to divide the positioning tube (1) into a plurality of elastic deformation parts.
7. The telescopic centering device according to claim 1, wherein one end of the leg (7) away from the movable shaft (5) is provided with a support plate (16), and the support plate (16) is provided with an arc-shaped protrusion for fitting with the inner wall of the pipeline.
8. The telescopic centering device according to claim 1, wherein the elastic means comprises a disc spring (9), a stop ring (17) is provided on the movable shaft (5), and the disc spring (9) is supported between the stop ring (17) and the guide tube (4).
9. Telescopic centring device according to claim 1, characterised in that the guide tubes (4) are provided in three and are evenly arranged on the outer wall of the support tube (3).
10. The telescopic centering device according to claim 1, wherein a through hole is provided on the movable shaft (5), an internal thread is provided in the through hole, and an external thread is provided on the leg (7), the external thread being engaged with the internal thread.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211211963 | 2022-09-30 | ||
| CN2022112119637 | 2022-09-30 |
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| CN115507799A true CN115507799A (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211285029.XA Pending CN115507799A (en) | 2022-09-30 | 2022-10-20 | Telescopic centering device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116203045A (en) * | 2023-05-06 | 2023-06-02 | 成都维迦科技有限公司 | Artificial intelligence detection device of pipeline inner wall |
| CN116276616A (en) * | 2023-01-31 | 2023-06-23 | 中建材光子科技有限公司 | Glass tube centering tool and glass tube processing method |
| CN116856237A (en) * | 2023-09-04 | 2023-10-10 | 河南珏峻建筑装饰有限公司 | Asphalt pavement cast iron well lid subsides regional prosthetic devices |
-
2022
- 2022-10-20 CN CN202211285029.XA patent/CN115507799A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116276616A (en) * | 2023-01-31 | 2023-06-23 | 中建材光子科技有限公司 | Glass tube centering tool and glass tube processing method |
| CN116276616B (en) * | 2023-01-31 | 2024-02-02 | 中建材光子科技有限公司 | Glass tube centering tool and glass tube processing method |
| CN116203045A (en) * | 2023-05-06 | 2023-06-02 | 成都维迦科技有限公司 | Artificial intelligence detection device of pipeline inner wall |
| CN116203045B (en) * | 2023-05-06 | 2024-02-06 | 中设（深圳）设备检验检测技术有限公司 | Artificial intelligence detection device of pipeline inner wall |
| CN116856237A (en) * | 2023-09-04 | 2023-10-10 | 河南珏峻建筑装饰有限公司 | Asphalt pavement cast iron well lid subsides regional prosthetic devices |
| CN116856237B (en) * | 2023-09-04 | 2023-11-28 | 河南珏峻建筑装饰有限公司 | Asphalt pavement cast iron well lid subsides regional prosthetic devices |
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