CN210427456U - Feeding and returning mechanism of steel pipe ultrasonic flaw detection device - Google Patents
Feeding and returning mechanism of steel pipe ultrasonic flaw detection device Download PDFInfo
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- CN210427456U CN210427456U CN201920838923.2U CN201920838923U CN210427456U CN 210427456 U CN210427456 U CN 210427456U CN 201920838923 U CN201920838923 U CN 201920838923U CN 210427456 U CN210427456 U CN 210427456U
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Abstract
The utility model relates to a steel pipe nondestructive test field especially relates to a feeding and returning mechanism of steel pipe ultrasonic flaw detection device, including the feeding mechanism and the returning mechanism of locating detection station both sides, the feeding mechanism includes slope, the base that is located between slope and the detection station, the long slab that is located under the detection station; two first cylinders are arranged on the slope, a plurality of steel pipes which are parallel to each other and have two flush ends are arranged on the slope, and the two first cylinders are respectively used for blocking the two steel pipes which are positioned at the lowest position on the slope; the base is provided with a sliding seat which slides along the radial direction of the steel pipe, a second cylinder is fixed on the sliding seat, a piston rod of the second cylinder is parallel to the steel pipe, a piston rod of the second cylinder is connected with a first sliding plate, and a rotating mechanism is arranged on the first sliding plate. Utilize automatic feeding and returning mechanism, realized getting the material automatically, will await measuring the steel pipe and place on detecting station, automatic material returning, not only improved detection efficiency, saved the cost of labor moreover.
Description
Technical Field
The utility model belongs to the technical field of steel pipe nondestructive test and specifically relates to a feeding and returning mechanism of steel pipe ultrasonic flaw detection device is related to.
Background
Ultrasonic non-destructive inspection is an inspection means for inspecting the internal quality of a part or a raw material using ultrasonic waves without damaging the part or the raw material. The principle of ultrasonic detection is as follows: if the metal has defects such as pores, cracks, delamination and the like (the defects contain gas), when ultrasonic waves are transmitted to the interface of the metal and the defects, the ultrasonic waves are totally or partially reflected, the reflected ultrasonic waves are received by the probe, the waveform is displayed on a screen of the instrument through processing inside the instrument, and the depth, the position and the shape of the defects in the part can be judged according to the characteristics of the waveform. The ultrasonic detection has the advantages of large detection thickness, high sensitivity, high speed, low cost, no harm to human body and capability of positioning and quantifying defects.
The utility model discloses a CN 206489150U's utility model discloses a portable check out test equipment of copper wire, the copper wire that produces is installed between right-hand member steel wire seat and left end steel wire seat, the left and right sides end of copper wire is equipped with left end motor and right-hand member motor, can drive left end steel wire seat and right-hand member steel wire seat after two motor startings and rotate, thereby make the copper wire rotate, the motor drive movable plate of detecting a flaw simultaneously, detector seat and detector remove along rack length direction, so can make the detector detect a flaw to whole copper wire, after detecting and accomplishing, the left end cylinder, middle cylinder and right-hand member cylinder start simultaneously and can make the copper wire withdraw then take off, it continues to detect to change another copper wire again.
The mobile flaw detection equipment is not provided with an automatic feeding and returning mechanism, so that a workpiece to be detected is required to be placed on a detection station by a worker, and the workpiece to be detected is taken down by the worker after the detection is finished, so that the feeding and returning efficiency is low, and the labor is wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a steel pipe ultrasonic inspection device's advance and retreat material mechanism, the automatic high-efficient advantage of advancing and retreating material that its has.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a feeding and returning mechanism of an ultrasonic flaw detection device for steel pipes comprises a feeding mechanism and a returning mechanism which are arranged on two sides of a detection station, wherein the feeding mechanism comprises a slope, a base positioned between the slope and the detection station and a long plate positioned right below the detection station; two first cylinders are arranged on the slope, a plurality of steel pipes which are parallel to each other and have two flush ends are arranged on the slope, and the two first cylinders are respectively used for blocking the two steel pipes which are positioned at the lowest position on the slope; a sliding seat which slides along the radial direction of the steel pipe is arranged on the base, a second air cylinder is fixed on the sliding seat, a piston rod of the second air cylinder is parallel to the steel pipe, the piston rod of the second air cylinder is connected with a first sliding plate, a rotating mechanism is arranged on the first sliding plate, and the rotating mechanism is used for connecting the end part of the steel pipe which is positioned lowest on the slope; the long plate is parallel to the steel pipe, a second sliding plate which slides along the direction parallel to the steel pipe is arranged on the long plate, a driving mechanism and a third air cylinder which is perpendicular to the steel pipe are arranged on the second sliding plate, a piston rod of the third air cylinder is connected with the third sliding plate, a probe is arranged on the third sliding plate, and the probe can move right above the steel pipe on the detection station; the material returning mechanism comprises two beam frames, a material returning groove is formed in the beam frames, a steel pipe inlet and a steel pipe outlet are formed in the beam frames, the material returning groove in the two beam frames is arranged oppositely, one end, away from a detection station, of the material returning groove is lower and is communicated with the steel pipe outlet, the end, close to the detection mechanism, of the material returning groove in the steel pipe inlet is vertical and is communicated with the material returning groove, an electromagnet used for attracting the steel pipe is fixed on the inner wall of the material returning groove right above the steel pipe inlet, two ends of the steel pipe attracted by the electromagnet enter the material returning grooves of the two beam frames respectively, and a fourth cylinder.
By adopting the technical scheme, the sliding seat moves to the end part of the lowest steel pipe on the slope, then the rotating mechanism is connected with the steel pipe, the piston rod of the first cylinder at the lower part releases the steel pipe immediately, and then the sliding seat drives the steel pipe to move to the detection station; when the detection is started, the rotating mechanism drives the steel pipe to rotate, and meanwhile, the second sliding plate drives the probe to move along the length direction of the steel pipe, so that the probe can detect the whole steel pipe; after the detection is finished, the third sliding plate is translated to enable the probe to leave the position right above the steel pipe, the electromagnet sucks the steel pipe into the material returning groove of the beam frame immediately, and then the fourth cylinder pushes the steel pipe out of the steel pipe outlet of the beam frame to finish material returning. The process realizes automatic feeding and returning and automatic detection, and improves the detection efficiency.
Preferably, be equipped with at least one between two sliders and remove the seat, remove the seat and pass through long post fixed connection with two sliders, all the pin joint has a pair of gyro wheels tangent with the steel pipe on the detection station on slider and the removal seat.
Through adopting above-mentioned technical scheme, have limiting displacement to the steel pipe.
Preferably, the rotating mechanism comprises a first motor and a bearing, an outer ring of the bearing is fixed on the first sliding plate, an inner ring of the bearing is fixed with a rotating shaft, the rotating shaft and the bearing are coaxial with a steel pipe on the detection station, the rotating shaft is used for being inserted into the steel pipe, a synchronizing wheel is coaxially fixed on the rotating shaft, and the first motor drives the synchronizing wheel to rotate through a synchronous belt.
By adopting the technical scheme, when the first motor drives the rotating shaft to rotate, the rotating shaft can drive the steel pipe to rotate, so that the probe moving along the length direction of the steel pipe can detect the whole body of the steel pipe.
Preferably, a connecting rod is fixed on a piston rod of the first cylinder, at least one stop lever is fixed on the connecting rod, and the stop lever is used for stopping a steel pipe on a slope.
Through adopting above-mentioned technical scheme, can block the steel pipe in multiple spot department, prevent that the steel pipe from inclining.
Preferably, the driving mechanism comprises a second motor fixed on the second sliding plate, the second motor is connected with a gear in a driving mode, a spur rack parallel to the steel pipe is fixed on the long plate, and the gear is meshed with the spur rack.
By adopting the technical scheme, when the second motor drives the gear to rotate, the gear can move along the length direction of the straight rack, and the second motor fixed relative to the gear can move along the length direction of the straight rack.
Preferably, the base is provided with a first travel switch and a second travel switch, when the sliding seat is stopped by the first travel switch, the rotating mechanism is located on the central axis of the steel pipe with the lowest position on the slope, and when the sliding seat is stopped by the second travel switch, the rotating mechanism is located on the detection station.
Through adopting above-mentioned technical scheme, first travel switch can make the slide stop automatically when moving the steel pipe department of position minimum on the slope, and second travel switch can make the slide stop automatically when moving to the detection station.
Preferably, an arc-shaped plate is fixed on a piston rod of the fourth cylinder.
Through adopting above-mentioned technical scheme, the arc can make the piston rod of fourth cylinder promote the steel pipe smoothly, prevents that piston rod and steel pipe from skidding.
Preferably, a third guide rail perpendicular to the steel pipe is fixed on the second sliding plate, a sliding block is in sliding fit with the third guide rail, the bottom of the third sliding plate is fixed on the sliding block, and the probe is fixed at the top of the third sliding plate.
By adopting the technical scheme, when the detection is started, the piston rod of the third cylinder extends out to push the third sliding plate, so that the probe on the third sliding plate moves to be right above the steel pipe to be detected; and when the detection is finished, the piston rod of the third cylinder retracts and pulls the third sliding plate, so that the probe on the third sliding plate is moved away from the position right above the steel pipe to be detected, and the steel pipe is returned upwards.
To sum up, the utility model discloses a beneficial technological effect does:
1. the automatic feeding and returning mechanism is utilized to realize automatic material taking, automatic placement of the steel pipe to be detected on the detection station and automatic material returning, so that the detection efficiency is improved, and the labor cost is saved;
2. when the detection is finished, the piston rod of the third cylinder retracts to pull the third sliding plate, so that the probe on the third sliding plate is moved away from the position right above the steel pipe to be detected, and the steel pipe is convenient to return upwards.
Drawings
FIG. 1 is a schematic structural view of an ultrasonic flaw detector for a steel pipe showing two states of a slide;
FIG. 2 is a schematic structural view of an ultrasonic flaw detector for a steel pipe showing only one state of a slide carriage;
FIG. 3 is a schematic view of the connection between the rotating mechanism and the steel pipe to be tested;
FIG. 4 is an enlarged view of portion A of FIG. 2;
FIG. 5 is an enlarged view of portion B of FIG. 2;
FIG. 6 is an enlarged view of portion C of FIG. 2;
FIG. 7 is an enlarged view of portion D of FIG. 2;
fig. 8 is an enlarged view of a portion E in fig. 3.
In the figure, 1, a feeding mechanism; 2. a material returning mechanism; 3. a frame plate; 3a, a slope; 4. a steel pipe; 5. a first cylinder; 6. a base; 7. a first guide rail; 8. a slide base; 9. a second cylinder; 10. a first slide plate; 11. a first motor; 12. a rotation mechanism; 13. a long plate; 14. a second guide rail; 15. a second slide plate; 16. a third cylinder; 17. a drive mechanism; 18. a third slide plate; 19. a probe; 20. a beam frame; 20a, a material returning groove; 20b, steel pipe inlet; 20c, steel pipe outlet; 21. an electromagnet; 22. a fourth cylinder; 23. a movable seat; 24. a roller; 25. a bearing; 26. a rotating shaft; 27. a synchronizing wheel; 28. a synchronous belt; 29. a connecting rod; 30. a stop lever; 31. a second motor; 32. a gear; 33. straight rack; 34. a first travel switch; 35. a second travel switch; 36. a long column; 37. an arc-shaped plate; 38. a third guide rail.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): fig. 1 is the utility model discloses a feeding and returning mechanism of steel pipe ultrasonic flaw detection device, including locating feeding mechanism 1 and the returning mechanism 2 that detects the station both sides.
As shown in fig. 1, the feeding mechanism 1 comprises two parallel frame plates 3, the top of the frame plate 3 is provided with a slope 3a, one end of the slope 3a close to the detection station is the lowest, and a plurality of steel pipes 4 which are parallel to each other and have two flush ends are arranged on the slope 3 a.
As shown in fig. 2, two first cylinders 5 are fixed to the frame plate 3, and piston rods of the two first cylinders 5 are respectively used for blocking the two steel pipes 4 at the lowest positions on the slope 3 a. A connecting rod 29 is fixed on a piston rod of each first cylinder 5, at least one vertical stop rod 30 is fixed on the connecting rod 29, and the stop rod 30 is used for stopping the steel pipe 4 on the slope 3 a.
As shown in fig. 2, the feeding mechanism 1 further includes a base 6 located between the slope 3a and the detection station, a first guide rail 7 perpendicular to the steel pipe 4 is fixed on the base 6, a sliding block is slidably fitted on the first guide rail 7, and a sliding seat 8 is fixed on the sliding block. A second cylinder 9 is fixed on the sliding seat 8, a piston rod of the second cylinder 9 is parallel to the steel pipe 4, the piston rod of the second cylinder 9 is connected with a first sliding plate 10, a rotating mechanism 12 is arranged on the first sliding plate 10, and the rotating mechanism 12 is used for being connected with the end part of the steel pipe 4 with the lowest position on the slope 3 a.
As shown in fig. 3, the rotating mechanism 12 includes a first motor 11 and a bearing 25, the first motor 11 is fixed on the first sliding plate 10, an outer ring of the bearing 25 is fixed on the first sliding plate 10, an inner ring of the bearing 25 is fixed with a rotating shaft 26, and both the rotating shaft 26 and the bearing 25 are coaxial with the steel pipe 4 on the detection station. The rotating shaft 26 is covered with a rubber soft sleeve, when the rotating shaft 26 is inserted into the end of the steel tube 4, the rubber soft sleeve can fix the rotating shaft 26 and the steel tube 4 relatively, and the rotating shaft 26 can drive the steel tube 4 to rotate. The first motor 11 is connected with a speed reducer in a driving mode, a synchronizing wheel 27 is coaxially fixed on an output shaft of the speed reducer, another synchronizing wheel 27 is coaxially fixed on the rotating shaft 26, the two synchronizing wheels 27 are connected through a synchronizing belt 28, and the rotating shaft 26 can be driven to rotate by starting the first motor 11.
As shown in fig. 2, two ends of the detection station are respectively provided with a base 6, each base 6 is provided with a sliding seat 8, and at least one movable seat 23 is arranged between the two sliding seats 8. The moving seat 23 is fixedly connected with the two sliding seats 8 through a long column 36, and the sliding seats 8 and the moving seat 23 are respectively pivoted with a pair of rollers 24 tangent to the steel pipe 4 on the detection station.
As shown in fig. 2, a first travel switch 34 and a second travel switch 35 are fixed to the base 6. When the sliding base 8 is stopped by the first travel switch 34, the rotating mechanism 12 is located on the central axis of the steel pipe 4 which is positioned lowest on the slope 3a, and when the sliding base 8 is stopped by the second travel switch 35, the rotating mechanism 12 is located on the detection station.
As shown in fig. 2, the feeding mechanism 1 further includes a long plate 13 located right below the detection station, and the long plate 13 is parallel to the steel pipe 4. A spur rack 33 and a second guide rail 14 are fixed on the long plate 13 along the length direction of the long plate, a second sliding plate 15 is arranged above the spur rack 33 and the second guide rail 14, a second motor 31 is fixed on the second sliding plate 15, the second motor 31 is in driving connection with a gear 32, the gear 32 is meshed with the spur rack 33, and the second motor 31 is started to enable the second sliding plate 15 to move along the length direction of the spur rack 33.
As shown in fig. 2, a third guide rail 38 is fixed on the second sliding plate 15, the third guide rail 38 is perpendicular to the steel pipe 4, a sliding block is slidably fitted on the third guide rail 38, a third sliding plate 18 is fixed on the sliding block, a probe 19 (see fig. 1) is fixed on the top of the third sliding plate 18, and the probe 19 is located above the steel pipe 4 on the detection station. And a third air cylinder 16 perpendicular to the steel pipe 4 is further fixed on the second sliding plate 15, a piston rod of the third air cylinder 16 is connected with a third sliding plate 18, and the third air cylinder 16 can move the probe 19 to a position right above the steel pipe 4 on the detection station.
As shown in fig. 2, the material returning mechanism 2 is composed of two beam frames 20, and the beam frames 20 are provided with a long material returning groove 20a, a steel pipe inlet 20b and a steel pipe outlet 20 c. The material returning grooves 20a on the two beam frames 20 are oppositely arranged, one end, far away from the detection station, of each material returning groove 20a is lower and communicated with the steel pipe outlet 20c, and the steel pipe inlet 20b is vertically communicated with the higher end of each material returning groove 20 a. An electromagnet 21 is fixed on the inner wall of the material returning groove 20a right above the steel pipe inlet 20b, the electromagnet 21 is used for sucking the steel pipe 4 in the detection station, and two ends of the steel pipe 4 sucked by the electromagnet 21 respectively enter the material returning grooves 20a of the two beam frames 20.
The beam frame 20 is further fixed with a fourth cylinder 22, and the fourth cylinder 22 is used for pushing the steel pipe 4 to the steel pipe outlet 20 c. An arc-shaped plate 37 is fixed on the piston rod of the fourth cylinder 22, and the arc-shaped plate 37 can enable the piston rod of the fourth cylinder 22 to smoothly push the steel pipe 4, so that the piston rod and the steel pipe 4 are prevented from slipping.
The implementation principle of the embodiment is as follows:
an automatic driving device (such as an oil cylinder, an air cylinder and a motor matched with a lead screw) is used for driving a sliding seat 8 to reciprocate on a base 6 along the direction vertical to a steel pipe 4, when the sliding seat 8 touches a first travel switch 34, the end part of the steel pipe 4 with the lowest position on a slope 3a of the sliding seat 8 is automatically stopped, then a second air cylinder 9 pushes a rotating shaft 26 to be inserted into the end part of the steel pipe 4, then a first air cylinder 5 with the lowest position releases the steel pipe 4 with the lowest position on the slope 3a, then the automatic driving device drives the sliding seat 8 to move to a detection station, and meanwhile, the first air cylinder 5 with the higher position releases the steel pipe 4 and the first air cylinder 5 with the lowest position blocks the steel pipe 4 (the sliding seat 8 on the slope 3 a;
when the sliding seat 8 moves to touch the second travel switch 35, the sliding seat 8 stops automatically, and the steel pipe 4 on the sliding seat 8 is just positioned at the detection station;
then the third air cylinder 16 pushes the third sliding plate 18, so that the probe 19 is positioned right above the steel pipe 4 to be detected on the detection station, then the second motor 31 automatically starts to drive the probe 19 to move along the length direction of the steel pipe 4 to be detected, and meanwhile, the first motor 11 drives the steel pipe 4 to be detected to rotate, so that the whole body detection of the steel pipe 4 to be detected is realized;
after the detection is finished, the third air cylinder 16 pulls the third sliding plate 18 to enable the probe 19 to leave the position right above the steel pipe 4, meanwhile, the second air cylinder 9 pulls the rotating shaft 26 out of the end part of the steel pipe 4, the electromagnet 21 sucks the steel pipe 4 into the material returning groove 20a of the beam frame 20, and then the fourth air cylinder 22 pushes the steel pipe 4 out of the steel pipe outlet 20c of the beam frame 20 to finish the material returning.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a steel pipe ultrasonic inspection device's feeding and returning material mechanism, is including locating feeding mechanism (1) and the material returning mechanism (2) that detect the station both sides, its characterized in that:
the feeding mechanism (1) comprises a slope (3 a), a base (6) positioned between the slope (3 a) and the detection station, and a long plate (13) positioned right below the detection station;
two first cylinders (5) are arranged at the slope (3 a), a plurality of steel pipes (4) which are parallel to each other and have two flush ends are arranged on the slope (3 a), and the two first cylinders (5) are respectively used for blocking the two steel pipes (4) which are arranged at the lowest position on the slope (3 a);
a sliding seat (8) which slides along the radial direction of the steel pipe (4) is arranged on the base (6), a second cylinder (9) is fixed on the sliding seat (8), a piston rod of the second cylinder (9) is parallel to the steel pipe (4), a piston rod of the second cylinder (9) is connected with a first sliding plate (10), a rotating mechanism (12) is arranged on the first sliding plate (10), and the rotating mechanism (12) is used for connecting the end part of the steel pipe (4) which is positioned at the lowest position on the slope (3 a);
the long plate (13) is parallel to the steel pipe (4), a second sliding plate (15) which slides along the direction parallel to the steel pipe (4) is arranged on the long plate (13), a driving mechanism (17) and a third air cylinder (16) which is perpendicular to the steel pipe (4) are arranged on the second sliding plate (15), a piston rod of the third air cylinder (16) is connected with a third sliding plate (18), a probe (19) is arranged on the third sliding plate (18), and the probe (19) can move to the position right above the steel pipe (4) on the detection station;
material returned mechanism (2) includes two roof beam structures (20), be equipped with material returned groove (20 a) on roof beam structure (20), steel pipe import (20 b) and steel pipe export (20 c), material returned groove (20 a) on two roof beam structures (20) set up relatively, material returned groove (20 a) are kept away from the one end of detection station lower and communicate with each other with steel pipe export (20 c), steel pipe import (20 b) and material returned groove (20 a) are close to the vertical intercommunication of one end of detection mechanism, be fixed with on material returned groove (20 a) the inner wall directly over steel pipe import (20 b) and be used for attracting electro-magnet (21) of steel pipe (4), enter into material returned groove (20 a) of two roof beam structures (20) respectively by steel pipe (4) both ends that electro-magnet (21) attracted, still be fixed with on roof beam structure (20) and be used for pushing away fourth cylinder (22) of steel pipe export (20 c).
2. The feeding and returning mechanism of the ultrasonic flaw detection apparatus for steel pipes according to claim 1, characterized in that: at least one moving seat (23) is arranged between the two sliding seats (8), the moving seat (23) is fixedly connected with the two sliding seats (8) through a long column (36), and a pair of rollers (24) tangent to the steel pipe (4) on the detection station are pivoted on the sliding seats (8) and the moving seat (23).
3. The feeding and returning mechanism of the ultrasonic flaw detection apparatus for steel pipes according to claim 1, characterized in that: the rotating mechanism (12) comprises a first motor (11) and a bearing (25), the outer ring of the bearing (25) is fixed on the first sliding plate (10), the inner ring of the bearing (25) is fixed with a rotating shaft (26), the rotating shaft (26) and the bearing (25) are coaxial with the steel pipe (4) on the detection station, the rotating shaft (26) is used for being inserted into the steel pipe (4), a synchronizing wheel (27) is coaxially fixed on the rotating shaft (26), and the first motor (11) drives the synchronizing wheel (27) to rotate through a synchronizing belt (28).
4. The feeding and returning mechanism of the ultrasonic flaw detection apparatus for steel pipes according to claim 1, characterized in that: a connecting rod (29) is fixed on a piston rod of the first air cylinder (5), at least one stop lever (30) is fixed on the connecting rod (29), and the stop lever (30) is used for stopping the steel pipe (4) on the slope (3 a).
5. The feeding and returning mechanism of the ultrasonic flaw detection apparatus for steel pipes according to claim 1, characterized in that: the driving mechanism (17) comprises a second motor (31) fixed on the second sliding plate (15), the second motor (31) is connected with a gear (32) in a driving mode, a straight rack (33) parallel to the steel pipe (4) is fixed on the long plate (13), and the gear (32) is meshed with the straight rack (33).
6. The feeding and returning mechanism of the ultrasonic flaw detection apparatus for steel pipes according to claim 1, characterized in that: the automatic detection device is characterized in that a first travel switch (34) and a second travel switch (35) are arranged on the base (6), when the sliding seat (8) is stopped by the first travel switch (34), the rotating mechanism (12) is located on the central axis of the steel pipe (4) which is arranged on the slope (3 a) and is at the lowest position, and when the sliding seat (8) is stopped by the second travel switch (35), the rotating mechanism (12) is located on a detection station.
7. The feeding and returning mechanism of the ultrasonic flaw detection apparatus for steel pipes according to claim 1, characterized in that: an arc-shaped plate (37) is fixed on a piston rod of the fourth cylinder (22).
8. The feeding and returning mechanism of the ultrasonic flaw detection apparatus for steel pipes according to claim 1, characterized in that: and a third guide rail (38) vertical to the steel pipe (4) is fixed on the second sliding plate (15), a sliding block is matched on the third guide rail (38) in a sliding manner, the bottom of the third sliding plate (18) is fixed on the sliding block, and the probe (19) is fixed on the top of the third sliding plate (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920838923.2U CN210427456U (en) | 2019-06-04 | 2019-06-04 | Feeding and returning mechanism of steel pipe ultrasonic flaw detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920838923.2U CN210427456U (en) | 2019-06-04 | 2019-06-04 | Feeding and returning mechanism of steel pipe ultrasonic flaw detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210427456U true CN210427456U (en) | 2020-04-28 |
Family
ID=70373984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920838923.2U Expired - Fee Related CN210427456U (en) | 2019-06-04 | 2019-06-04 | Feeding and returning mechanism of steel pipe ultrasonic flaw detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210427456U (en) |
-
2019
- 2019-06-04 CN CN201920838923.2U patent/CN210427456U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20200428 Termination date: 20210604 |