CN216594918U - Hand-push type double-rail flaw detector - Google Patents
Hand-push type double-rail flaw detector Download PDFInfo
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- CN216594918U CN216594918U CN202122797691.0U CN202122797691U CN216594918U CN 216594918 U CN216594918 U CN 216594918U CN 202122797691 U CN202122797691 U CN 202122797691U CN 216594918 U CN216594918 U CN 216594918U
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Abstract
The utility model discloses a hand-push type double-rail flaw detector which comprises a first probe part, a second probe part, an ultrasonic detection host, an eddy current detection host, a coupling liquid device, a frame and an upper computer, wherein the first probe part comprises a first eddy current probe group, a first ultrasonic parent metal probe group, a first array probe group and a second ultrasonic parent metal probe group, a first detection combination surface, a third detection combination surface, a second detection combination surface and a fourth detection combination surface are all attached to a tread of a first steel rail, and the first probe part is used for detecting near-surface damage, internal transverse vertical cracks and internal damage of the first steel rail; the first eddy current probe group is in communication connection with the eddy current detection host; the first array probe group, the first parent metal probe group and the second parent metal probe group are all in communication connection with the ultrasonic detection host. The hand-push type double-rail flaw detector provided by the utility model can effectively detect the damage on the near surface and inside of the double rail and the transverse vertical crack inside the double rail.
Description
Technical Field
The utility model relates to the technical field of steel rail flaw detection, in particular to a hand-push type double-rail flaw detector.
Background
The rail flaw detection operation is a first defense line for preventing rail breakage and ensuring safety, and the flaw detection device is directly related to the flaw detection rate and the railway transportation safety. The double rail comprises a first steel rail and a second steel rail which are arranged oppositely.
The existing steel rail detection equipment comprises single-rail type steel rail ultrasonic flaw detection equipment, double-rail flaw detection equipment and a steel rail flaw detection vehicle, wherein the single-rail type steel rail ultrasonic flaw detection equipment can only detect single-strand steel rails and has low detection efficiency; double-track flaw detection equipment: the price is high; the weight is large; the use is limited by time, and the railway line cannot be freely accessed; the defect of the transverse section of the steel rail cannot be detected; rail flaw detection vehicle: the vehicle can not be stopped at any time to recheck the injury, and the injury detection rate is low. The three flaw detection devices have cross test blind areas, and the following problems exist: firstly, the single-rail detection efficiency is low, and the personnel demand is large; secondly, the detection capability for transverse vertical cracks in the steel rail is limited; thirdly, the near surface damage of the rail cannot be effectively detected.
Therefore, it is necessary to solve the above-mentioned technical problems.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a hand-propelled dual-rail flaw detector for effectively detecting damage on the near surface and inside of a dual rail and detecting transverse vertical cracks inside the dual rail.
Based on the above purpose, the utility model provides a hand-push type double-rail flaw detector, which comprises a first probe part and a second probe part which are arranged oppositely, an ultrasonic detection host, a vortex detection host, a coupling liquid device, a frame and an upper computer, wherein: the first probe part is arranged on the frame and comprises a first eddy current probe group, a first ultrasonic parent metal probe group, a first array probe group and a second ultrasonic parent metal probe group which are sequentially arranged, the first eddy current probe group comprises a first detection surface, the first parent metal probe group comprises a second detection combination surface, the first array probe group comprises a third detection combination surface, the second parent metal probe group comprises a fourth detection combination surface, and the first detection combination surface, the third detection combination surface, the second detection combination surface and the fourth detection combination surface are all attached to the tread of the first steel rail and are respectively used for detecting near-surface damage, internal transverse vertical cracks and internal damage of the first steel rail; the second probe part is arranged on the frame, has the same structure as the first probe part, and is used for detecting near-surface damage, internal transverse vertical cracks and internal damage of a second steel rail; the first eddy current probe group is in communication connection with the eddy current detection host, and the first array probe group, the first parent metal probe group and the second parent metal probe group are in communication connection with the ultrasonic detection host; the ultrasonic detection host and the eddy current detection host are in communication connection with the upper computer; the coupling liquid device is installed on the frame and comprises coupling liquid, and the coupling liquid is sprayed on the tread of the first steel rail and the tread of the second steel rail.
Optionally, the first ultrasonic parent material probe group includes a No. 1 ultrasonic probe and a No. 2 ultrasonic probe, the No. 1 ultrasonic probe includes a front straight 70 ° wafer E and a rear straight 70 ° wafer F, and the No. 2 ultrasonic probe includes a rear straight 37 ° wafer H and a 0 ° wafer I; the second ultrasonic parent material probe group comprises a No. 7 ultrasonic probe and a No. 8 ultrasonic probe, wherein the No. 7 ultrasonic probe comprises a front inner 70-degree wafer C and a rear inner 70-degree wafer A, and the No. 8 ultrasonic probe comprises a front outer 70-degree wafer D and a rear outer 70-degree wafer B.
Optionally, the first array probe group includes a number 3 ultrasonic probe, a number 4 ultrasonic probe, a number 5 ultrasonic probe, and a number 6 ultrasonic probe, which are sequentially arranged, where the number 3 ultrasonic probe includes four wafers C1, G, C2, and C3, C1 is a transmitting channel, C2 is a receiving and transmitting channel, C3 is a receiving channel, G is a front 37 ° channel, the number 4 ultrasonic probe includes two wafers C4 and C5, and both C4 and C5 are receiving channels, the number 5 ultrasonic probe includes two wafers C6 and C7, and both C6 and C7 are receiving channels, the number 6 ultrasonic probe includes two wafers C8 and C9, and both C8 and C9 are receiving channels, the distance between C1 and C2 is 30mm to 44mm, the distance between C1 and C4 is 106mm to 120mm, the distance between C1 and C6 is 181mm to 195mm, and the distance between C1 and C8 mm are 270mm to 256 mm.
Optionally, the distance between H and G is 255 mm-265 mm.
Optionally, the frame includes a first probe support and a second probe support which are arranged oppositely, the first eddy current probe set, the first ultrasonic parent material probe set, the first array probe set, and the second ultrasonic parent material probe set are arranged on the first probe support in sequence, and the second probe portion is installed on the second probe support.
Optionally, the frame further includes a first sweeper and a second sweeper, and the first sweeper and the second sweeper are respectively installed at two ends of the first probe support.
Optionally, the frame further comprises a handle.
Optionally, a valve is arranged on the coupling liquid device, and the valve is installed on the ejection pipeline of the coupling liquid.
Optionally, the number of the coupling liquid devices is multiple, and the coupling liquid in the multiple coupling liquid devices is sprayed on the tread of the first steel rail between the first eddy current probe group and the second base material probe group.
Optionally, the hand-push type double-rail flaw detector further comprises a storage battery.
The utility model provides a hand-push type double-rail flaw detector which comprises a first probe part, a second probe part, an ultrasonic detection host, an eddy current detection host, a coupling liquid device, a frame and an upper computer, wherein the first probe part and the second probe part are oppositely arranged, the first eddy current probe group, the first ultrasonic parent material probe group, the first array probe group and the second ultrasonic parent material probe group are sequentially arranged on the frame, a first detection combination surface, a third detection combination surface, a second detection combination surface and a fourth detection combination surface are attached to a tread of a first steel rail, the second probe part is arranged on the frame according to the structure, the first ultrasonic detection host and the eddy current detection host are started, and the hand-push type double-rail flaw detector is manually pushed to move on double rails, so that the flaws on the near surfaces and the inner parts of the double rails are effectively detected, and transverse vertical cracks in the double rails are detected.
Drawings
The objects and advantages of the present invention will be understood by the following detailed description of the preferred embodiments of the utility model, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a hand-push type double-rail flaw detector according to an embodiment of the utility model;
fig. 2 is a schematic structural diagram of a first probe portion in the hand-propelled dual-rail flaw detector according to an embodiment of the utility model;
fig. 3 is a plan view of a first ultrasonic parent material probe group, a first array probe group, and a second ultrasonic parent material probe group mounted on a first rail tread in a hand-propelled double-rail flaw detector according to an embodiment of the present invention.
Description of reference numerals:
1: a first probe portion; 2: an ultrasonic detection host; 3: an eddy current detection host; 4: a coupling fluid device; 5: a frame; 6: an upper computer; 7: a handle; 8: a tread of the first rail; 9, a first steel rail; 10: a second steel rail;
12: a first ultrasonic parent material probe group; 13: a first array of probe sets; 14: a second ultrasonic parent material probe group;
number 21:1 ultrasound probe; no. 22:2 ultrasonic probe; no. 23:3 ultrasonic probe; number 24:4 ultrasound probe; 25: a number 5 ultrasonic probe; 26: a number 6 ultrasonic probe; 27: number 7 ultrasound probe; 28: a number 8 ultrasonic probe; 29: a first set of eddy current probes;
51: a first sweeper; 52: a second sweeper;
61: the inner side of the steel rail; 62: outside the steel rail.
Detailed Description
The present invention will be described in detail with reference to examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1 to 3, the hand-push type double-rail flaw detector provided by the present invention includes a first probe portion 1 and a second probe portion, an ultrasonic detection host 2, an eddy current detection host 3, a coupling liquid device 4, a frame 5 and an upper computer 6, which are oppositely arranged, wherein: the first probe part 1 is installed on the frame 5 and comprises a first eddy current probe group 29, a first ultrasonic parent metal probe group 12, a first array probe group 13 and a second ultrasonic parent metal probe group 14 which are sequentially arranged, the first eddy current probe group 29 comprises a first detection surface, the first parent metal probe group comprises a second detection combination surface, the first array probe group 13 comprises a third detection combination surface, the second parent metal probe group comprises a fourth detection combination surface, and the first detection combination surface, the third detection combination surface, the second detection combination surface and the fourth detection combination surface are all attached to the tread 8 of the first steel rail and are respectively used for detecting near surface damage, internal transverse vertical cracks and internal damage of the first steel rail 9; the second probe part is arranged on the frame 5, has the same structure as the first probe part 1, and is used for detecting near-surface damage, internal transverse vertical cracks and internal damage of the second steel rail 10; the first eddy current probe group 29 is in communication connection with the eddy current detection host 3; the first array probe group 13, the first parent metal probe group and the second parent metal probe group are all in communication connection with the ultrasonic detection host 2; the ultrasonic detection host machine 2 and the eddy current detection host machine 3 are in communication connection with the upper computer 6; the coupling liquid device 4 is installed on the frame 5, and the coupling liquid device 4 comprises coupling liquid which is sprayed on the tread 8 of the first steel rail 9 and the tread of the second steel rail 10.
It should be noted that: the second probe part and the first probe group have the same structure, namely, the second probe part also comprises a first eddy current probe group 29, a first ultrasonic parent metal probe group 12, a first array probe group 13 and a second ultrasonic parent metal probe group 14 which are sequentially arranged, the first eddy current probe group 29 comprises a first detection surface, the first parent metal probe group comprises a second detection combined surface, the first array probe group 13 comprises a third detection combined surface, the second parent metal probe group comprises a fourth detection combined surface, and the first detection combined surface, the third detection combined surface, the second detection combined surface and the fourth detection combined surface are all attached to the tread of the second steel rail 10 and are respectively used for detecting near surface damage, internal transverse vertical cracks and internal damage of the second steel rail 10; the coupling liquid may be water.
The utility model provides a hand-push type double-rail flaw detector, which comprises a first probe part 1 and a second probe part which are oppositely arranged, an ultrasonic detection host machine 2, an eddy current detection host machine 3, a coupling liquid device 4, a frame 5 and an upper computer 6, wherein a first eddy current probe group 29, a first ultrasonic parent material probe group 12, a first array probe group 13 and a second ultrasonic parent material probe group 14 are sequentially arranged on the frame 5, a first detection combined surface, a third detection combined surface, a second detection combined surface and a fourth detection combined surface are all attached to a steel rail 8 of a first tread, similarly, the second probe part is arranged on the frame 5 according to the structure, the first ultrasonic detection host machine 2 and the eddy current detection host machine 3 are opened, the hand-push type double-rail flaw detector moves on double rails along with manual pushing, therefore, the damage on the near surface and the inside of the double rail is effectively detected, and the transverse vertical crack inside the double rail is detected.
As shown in fig. 2 and 3, the first ultrasonic parent material probe group 12 includes a No. 1 ultrasonic probe 21 and a No. 2 ultrasonic probe 22, the No. 1 ultrasonic probe 21 includes a front straight 70 ° wafer E and a rear straight 70 ° wafer F, and the No. 2 ultrasonic probe 22 includes a rear straight 37 ° wafer H and a 0 ° wafer I; the second ultrasonic parent material probe group 14 includes a No. 7 ultrasonic probe 27 and a No. 8 ultrasonic probe 28, the No. 7 ultrasonic probe 27 includes a front inner 70 ° wafer C and a rear inner 70 ° wafer a, and the No. 8 ultrasonic probe 28 includes a front outer 70 ° wafer D and a rear outer 70 ° wafer B. In this embodiment, the No. 1 ultrasonic probe 21, the No. 2 ultrasonic probe 22, the No. 7 ultrasonic probe 27 and the No. 8 ultrasonic probe 28 can detect the internal damage of the first steel rail 9, specifically, the No. 7 ultrasonic probe 27 and the No. 8 ultrasonic probe 28 can detect the internal damage of the railhead, and the effective detectability of the hand-push type double-rail flaw detector is improved.
As shown in fig. 2 and 3, the first array probe group 13 includes sequentially arranged number 3 ultrasonic probe 23, number 4 ultrasonic probe 24, number 5 ultrasonic probe 25, number 6 ultrasonic probe 26, number 3 ultrasonic probe 23 includes four wafers of C1, G, C2, C3, C1 is a transmitting channel, C2 is a receiving and transmitting channel, C3 is a receiving channel, G is a front 37 ° channel, number 4 ultrasonic probe 24 includes two wafers of C4, C5, and C4, C5 are receiving channels, number 5 ultrasonic probe 25 includes two wafers of C6, C7, and C6, C7 are receiving channels, number 6 ultrasonic probe 26 includes two wafers of C8, C9, and C8, C9 are receiving channels, the distance between C1 and C2 is 30mm to 44mm, the distance between C1 and C4 is 106mm to 120mm, the distance between C6474 and C4 is 195mm to 4mm, the distance between C4 and C4 is 270mm, and the distance between C4 is 270mm to 4mm, and the distance between C4 is 270 mm. In this embodiment, the wafer C1 is a transmitting wafer, the wafer C2 is a transmitting plus receiving wafer, and if vertical defects block the transmitting paths of the two wafers, the sound waves are reflected to the rail bottom and reflected to the receiving wafers C2 to C9 again through the rail bottom surface, so as to scan the rail web from bottom to top, thereby realizing uninterrupted scanning in the vertical direction, i.e., detecting the transverse vertical cracks inside the first steel rail 9, and similarly, the second probe can detect the transverse vertical cracks inside the second steel rail 10, thereby effectively detecting the transverse vertical cracks inside the dual rail, and improving the convenience in use of the hand-propelled dual-rail flaw detector.
As shown in FIGS. 2 and 3, the distance between H and G is 255mm to 265 mm. In this embodiment, the probe H transmits the signal, the probe G receives the signal, and the transmission detection is performed on the projection area of the rail web of the rail, so as to detect the internal damage of the rail web of the first rail 9 and the projection area thereof, and similarly, the second probe portion can detect the rail web of the second rail 10 and the projection area thereof to detect the internal damage, thereby improving the comprehensive detection capability of the hand-push type double-rail flaw detector.
As shown in fig. 1, the carriage 5 includes a first probe holder and a second probe holder which are oppositely disposed, a first eddy current probe group 29, a first ultrasonic mother material probe group 12, a first array probe group 13, and a second ultrasonic mother material probe group 14 are sequentially arranged on the first probe holder, and a second probe portion is mounted on the second probe holder. According to the embodiment, the structural stability of the first eddy current probe group 29, the first ultrasonic parent metal probe group 12, the first array probe group 13 and the second ultrasonic parent metal probe group 14 mounted on the frame 5 is improved, the probes are mounted according to the sequence, the relevance among the probes is guaranteed, the mutual interference among the non-relevant probes is reduced, and the stability of the detection capability of the hand-push type double-rail flaw detector is improved.
As shown in fig. 2, the carriage 5 further includes a first sweeper 51 and a second sweeper 52, and the first sweeper 51 and the second sweeper 52 are respectively installed at both ends of the first probe holder. Specifically, the second probe mount on the second rail 10 is also provided with a third sweeper and a fourth sweeper at both ends. In the embodiment, as the hand-push type double-rail flaw detector moves forwards on the tread of the double rail, the first sweeper 51 and the second sweeper 52 can clean the tread 8 of the first steel rail in time, so that the influence of interference-free foreign matters is ensured when the tread 8 of the first steel rail is detected; similarly, the third cleaner and the fourth cleaner can clean the tread of the second steel rail 10 in time, so that the influence of interference-free foreign matters during detection of the tread of the second steel rail 10 is guaranteed, the interference of external factors to detection is reduced, and the accuracy of detection operation of the hand-push type double-rail flaw detector is improved.
As shown in fig. 1, the frame 5 further includes a handle 7. In this embodiment, handle 7 can make things convenient for the hand push operation more, has improved the convenient to use nature of hand propelled double track flaw detector.
In one embodiment of the utility model, the valve is arranged on the coupling liquid device 4, the valve is arranged on a spraying pipeline of the coupling liquid, and an operator manually operates the valve to open or close, so that when the hand-push type double-rail flaw detector moves forward for detection, the coupling liquid is sprayed on the tread of the double rails in time by opening the valve, and air between the No. 1 ultrasonic probe 21, the No. 2 ultrasonic probe 22, the No. 3 ultrasonic probe 23, the No. 4 ultrasonic probe 24, the No. 5 ultrasonic probe 25, the No. 6 ultrasonic probe 26, the No. 7 ultrasonic probe 27 and the No. 8 ultrasonic probe 28 and the tread of the double rails can be discharged in time, so that the detection is facilitated.
In one embodiment of the utility model, a plurality of coupling liquid devices 4 are provided, the coupling liquid in the plurality of coupling liquid devices 4 is sprayed on the tread 8 of the first steel rail between the first eddy current probe group 29 and the second base material probe group, and similarly, a plurality of coupling liquid is sprayed on the tread of the second steel rail 10, so that the coupling liquid is uniformly sprayed on the double-rail tread, and the detection accuracy of the hand-push type double-rail flaw detector is improved.
In an embodiment of the utility model, the hand-push type double-rail flaw detector further comprises a storage battery. The storage battery provides a power supply for the hand-push type double-rail flaw detector, so that the normal work of the hand-push type double-rail flaw detector is ensured, and the use convenience of the hand-push type double-rail flaw detector is improved.
The utility model provides a hand-push type double-rail flaw detector, which comprises a first probe part 1 and a second probe part which are oppositely arranged, an ultrasonic detection host machine 2, an eddy current detection host machine 3, a coupling liquid device 4, a frame 5 and an upper computer 6, wherein a first eddy current probe group 29, a first ultrasonic parent material probe group 12, a first array probe group 13 and a second ultrasonic parent material probe group 14 are sequentially arranged on the frame 5, a first detection combined surface, a third detection combined surface, a second detection combined surface and a fourth detection combined surface are all attached to a steel rail 8 of a first tread, similarly, the second probe part is arranged on the frame 5 according to the structure, the first ultrasonic detection host machine 2 and the eddy current detection host machine 3 are opened, the hand-push type double-rail flaw detector moves on double rails along with manual pushing, therefore, the damage on the near surface and the inside of the double rail is effectively detected, and the transverse vertical crack inside the double rail is detected.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a hand propelled double track appearance of detecting a flaw, its characterized in that, surveys head portion, ultrasonic testing host computer, eddy current detection host computer, coupling liquid device, frame and host computer including relative first spy head portion and the second that sets up, wherein:
the first probe part is arranged on the frame and comprises a first eddy current probe group, a first ultrasonic parent metal probe group, a first array probe group and a second ultrasonic parent metal probe group which are sequentially arranged, the first eddy current probe group comprises a first detection combined surface, the first ultrasonic parent metal probe group comprises a second detection combined surface, the first array probe group comprises a third detection combined surface, the second ultrasonic parent metal probe group comprises a fourth detection combined surface, and the first detection combined surface, the third detection combined surface, the second detection combined surface and the fourth detection combined surface are all attached to the tread of the first steel rail and are respectively used for detecting the near-surface damage, the internal transverse vertical crack and the internal damage of the first steel rail;
the second probe part is arranged on the frame, has the same structure as the first probe part, and is used for detecting near-surface damage, internal transverse vertical cracks and internal damage of a second steel rail;
the first eddy current probe group is in communication connection with the eddy current detection host;
the first array probe group, the first ultrasonic parent material probe group and the second ultrasonic parent material probe group are all in communication connection with the ultrasonic detection host;
the ultrasonic detection host and the eddy current detection host are in communication connection with the upper computer;
the coupling liquid device is installed on the frame and comprises coupling liquid, and the coupling liquid is used for being sprayed on the tread of the first steel rail and the tread of the second steel rail.
2. The hand-push type double-rail flaw detector according to claim 1, wherein the first ultrasonic parent material probe group comprises a No. 1 ultrasonic probe and a No. 2 ultrasonic probe, the No. 1 ultrasonic probe comprises a front straight 70-degree wafer E and a rear straight 70-degree wafer F, and the No. 2 ultrasonic probe comprises a rear straight 37-degree wafer H and a 0-degree wafer I; the second ultrasonic parent material probe group comprises a No. 7 ultrasonic probe and a No. 8 ultrasonic probe, wherein the No. 7 ultrasonic probe comprises a front inner 70-degree wafer C and a rear inner 70-degree wafer A, and the No. 8 ultrasonic probe comprises a front outer 70-degree wafer D and a rear outer 70-degree wafer B.
3. The hand-propelled double-rail flaw detector as claimed in claim 2, wherein the first array probe group comprises a number 3 ultrasonic probe, a number 4 ultrasonic probe, a number 5 ultrasonic probe and a number 6 ultrasonic probe which are sequentially arranged, the number 3 ultrasonic probe comprises four wafers C1, G, C2 and C3, C1 is a transmitting channel, C2 is a receiving and transmitting channel, C3 is a receiving channel, G is a front 37 ° channel, the number 4 ultrasonic probe comprises two wafers C4 and C5, C4 and C5 are receiving channels, the number 5 ultrasonic probe comprises two wafers C6 and C7, C6 and C7 are receiving channels, the number 6 ultrasonic probe comprises two wafers C8 and C9, C8 and C9 are receiving channels, the distance between C1 and C2 is 30mm to 44mm, the distance between C1 and C6 is 106mm to 120mm, and the distance between C1 mm and C6 mm is 195mm to 387 mm, the distance between the C1 and the C8 is 256 mm-270 mm.
4. The hand-push type double-rail flaw detector according to claim 3, wherein the distance between H and G is 255 mm-265 mm.
5. The hand-push type double-rail flaw detector according to claim 4, wherein the vehicle frame comprises a first probe support and a second probe support which are oppositely arranged, the first eddy current probe set, the first ultrasonic parent material probe set, the first array probe set and the second ultrasonic parent material probe set are sequentially arranged on the first probe support, and the second probe portion is mounted on the second probe support.
6. The hand-push type double-rail flaw detector according to claim 5, wherein the frame further comprises a first sweeper and a second sweeper, and the first sweeper and the second sweeper are respectively mounted at two ends of the first probe bracket.
7. The hand propelled dual rail flaw detector of claim 6, wherein the frame further comprises a handle.
8. The hand-propelled double-rail flaw detector according to claim 7, wherein a valve is disposed on the coupling liquid device, and the valve is mounted on a discharge pipe of the coupling liquid.
9. The hand-propelled dual-rail flaw detector according to claim 8, wherein the coupling liquid devices are plural, and the coupling liquid in the plural coupling liquid devices is sprayed on the tread surface of the first steel rail between the first eddy current probe group and the second ultrasonic parent material probe group.
10. The hand propelled dual rail flaw detector of claim 9, wherein the hand propelled dual rail flaw detector further comprises a battery.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122797691.0U CN216594918U (en) | 2021-11-16 | 2021-11-16 | Hand-push type double-rail flaw detector |
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| CN202122797691.0U CN216594918U (en) | 2021-11-16 | 2021-11-16 | Hand-push type double-rail flaw detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117740948A (en) * | 2024-02-20 | 2024-03-22 | 北京聚龙科技发展有限公司 | Track bridge type bogie ultrasonic flaw detector |
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2021
- 2021-11-16 CN CN202122797691.0U patent/CN216594918U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117740948A (en) * | 2024-02-20 | 2024-03-22 | 北京聚龙科技发展有限公司 | Track bridge type bogie ultrasonic flaw detector |
| CN117740948B (en) * | 2024-02-20 | 2024-04-30 | 北京聚龙科技发展有限公司 | Track bridge type bogie ultrasonic flaw detector |
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