CN217320364U - Anti-derailing device for track detection vehicle and track detection vehicle - Google Patents
Anti-derailing device for track detection vehicle and track detection vehicle Download PDFInfo
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- CN217320364U CN217320364U CN202220892701.0U CN202220892701U CN217320364U CN 217320364 U CN217320364 U CN 217320364U CN 202220892701 U CN202220892701 U CN 202220892701U CN 217320364 U CN217320364 U CN 217320364U
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Abstract
The utility model relates to a track check out test set technical field provides an anticreep rail device and track detection car for track detection car, an anticreep rail device for track detection car includes: a universal ball bearing and an elastic member; the ball seat of the universal ball bearing is connected with one end of an elastic component, and the other end of the elastic component is connected with a chassis of the track detection vehicle; the elastic member is arranged along the height direction of the track detection vehicle; the elastic member has an initial state and a deformation state, in the initial state, the running wheels on the chassis are used for being abutted against the track, and the length of the elastic member along the height direction of the track detection vehicle is a first length; in the deformation state, the running wheels on the chassis are used for being separated from the track, and the length of the elastic component along the height direction of the track detection vehicle is a second length; wherein the first length is greater than the second length; the utility model discloses can avoid the track to detect the phenomenon that the car derailed.
Description
Technical Field
The utility model relates to a track check out test set technical field especially relates to an anticreep rail device and track detection car for track detection car.
Background
The rail detection vehicle is an apparatus for detecting the geometric state and the smooth-going condition of a railway rail, electronic equipment such as a track gauge, a total station, inertial navigation equipment, global positioning equipment and the like are usually carried on the rail detection vehicle, and the rail detection vehicle is an important tool for ensuring the safety, stability and comfort of the running of the railway vehicle and the maintenance and the repair of a guide rail.
The existing track detection vehicle is in the process of running along a track, and the track detection vehicle is easy to generate a jumping phenomenon under the condition that the track detection vehicle runs to a track connection part, a turning part or a damaged part of the track, so that the damage of electronic equipment on the track detection vehicle is caused, and especially when the running speed of the track detection vehicle is high, the derailment of the track detection vehicle can even occur.
SUMMERY OF THE UTILITY MODEL
The utility model provides an anticreep rail device and track detection car for solve or improve the problem that current track detection car exists easy derail at the in-process that traveles.
The utility model provides an anticreep rail device for track inspection car, include: a universal ball bearing and an elastic member; the ball seat of the universal ball bearing is connected with one end of an elastic component, and the other end of the elastic component is connected with a chassis of the track inspection vehicle; the elastic component is arranged along the height direction of the track detection vehicle; the elastic component has an initial state and a deformation state, in the initial state, the running wheels on the chassis are used for being abutted with the track, and the length of the elastic component along the height direction of the track detection vehicle is a first length; in the deformation state, the running wheels on the chassis are used for being separated from the track, and the length of the elastic component along the height direction of the track detection vehicle is a second length; wherein the first length is greater than the second length.
According to the utility model provides a pair of anticreep rail device for track inspection car, an anticreep rail device for track inspection car still includes: a guide post and a guide sleeve; the guide posts are arranged along the height direction of the track detection vehicle, one ends of the guide posts are connected with the ball seats, the other ends of the guide posts are connected with the guide sleeves in an inserted mode, and the guide sleeves are connected with the chassis.
According to the utility model provides a pair of anticreep rail device for track inspection car, the guide post includes: a first segment and a second segment; one end of the first section is connected with the ball seat, the other end of the first section is connected with one end of the second section, and the other end of the second section is inserted into the guide sleeve; the first segment has an outer diameter greater than an inner diameter of the guide sleeve.
According to the utility model provides a derailing prevention device for a track inspection vehicle, the elastic component comprises a spring; the spring is sleeved on the guide post.
According to the utility model provides a pair of anticreep rail device for track inspection car, universal ball bearing still includes: a screw; one end of the screw rod is connected with the ball seat, one end of the guide post is provided with a threaded hole, and the other end of the screw rod is in threaded connection with the threaded hole.
According to the utility model provides a pair of anticreep rail device for track inspection car, an anticreep rail device for track inspection car still includes: the connecting frame and the pressing block; one end of the connecting frame is detachably connected with the traction mechanism, and the other end of the connecting frame is connected with the pressing block; a groove is formed in the compression block, one end, close to the ball, of the universal ball bearing extends into the groove, and the ball is connected with the groove bottom of the groove; the width of the groove in the width direction of the track detection vehicle is larger than that of the universal ball bearing.
According to the utility model provides a pair of anticreep rail device for track inspection car, an anticreep rail device for track inspection car still includes: the traction rod comprises a first joint ball bearing, a traction rod and a second joint ball bearing; the inner ring of the first joint ball bearing is detachably connected with the connecting frame, the outer ring of the first joint ball bearing is in threaded connection with one end of the traction rod, the other end of the traction rod is in threaded connection with the outer ring of the second joint ball bearing, and the inner ring of the second joint ball bearing is detachably connected with the chassis.
According to the utility model provides a pair of anticreep rail device for track inspection car, the link includes: a first bracket and a second bracket; one end of the first support is rotatably connected with one end of the second support.
The utility model also provides a track inspection car, include: the anti-derailing device comprises a chassis, running wheels, lateral wheels and the anti-derailing device for the track inspection vehicle; the running wheels and the lateral wheels are respectively connected with the chassis in a rotating way, and the axes of the running wheels are vertical to the axes of the lateral wheels.
The utility model provides an anti-derailment device for a track inspection vehicle and the track inspection vehicle, which are provided with a universal ball bearing and an elastic component, when the track detection vehicle runs to the connection part of the track or the damaged part of the track in the process of the traction mechanism drawing the track detection vehicle to patrol on the track, the chassis of the track detection vehicle can jump up and down, the weight of the traction mechanism is large, the track inspection vehicle is difficult to jack up the traction mechanism, the traction mechanism hardly generates the phenomenon of jumping, namely, the relative distance between the universal ball bearing and the track is kept constant, and under the condition that the chassis jumps upwards, the chassis is provided with a universal ball bearing, the universal ball bearing is arranged on the chassis, the chassis is provided with a plurality of universal ball bearings, and the universal ball bearing is arranged on the chassis; it can be understood that the larger the upward jumping amount of the chassis is, the larger the compression amount of the elastic member is, the larger the elastic force generated by the elastic member is, so that the running wheels can be quickly pressed to the track under the action of the larger elastic force, the separation of the running wheels from the track is avoided, and the derailment of the track detection vehicle is further avoided; when the track inspection vehicle travels to the turning of the track, or when a height difference exists between two tracks, the chassis can generate certain offset in the horizontal plane relative to the track, and the ball of the universal ball bearing can roll in the ball seat in a self-adaptive manner at the moment, so that the offset of the chassis in each direction in the horizontal plane is compensated, further the chassis stress caused by the lateral offset of the chassis is prevented from being uneven, the stability of the track inspection vehicle traveling on the track is improved, and the detection precision and the service life of a detection instrument on the track inspection vehicle are ensured.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the derailment prevention device and the traction mechanism for the track inspection vehicle provided by the present invention;
fig. 2 is one of the schematic structural diagrams of the derailment prevention device for a track inspection vehicle according to the present invention;
FIG. 3 is a schematic cross-sectional view taken along A-A of FIG. 2;
FIG. 4 is an enlarged view of the structure of FIG. 3 at B
Fig. 5 is a second schematic structural view of the derailing prevention device for a track inspection vehicle according to the present invention;
reference numerals:
1: a chassis; 11: a running wheel; 12: a lateral wheel; 2: a track; 3: a universal ball bearing; 31: a ball bearing; 32: a ball seat; 33: a screw; 4: an elastic member; 5: a traction mechanism; 6: a guide post; 61: a first segment; 62: a second segment; 7: a guide sleeve; 8: a connecting frame; 81: a first bracket; 82: a second bracket; 9: a compression block; 91: a groove; 101: a first joint ball bearing; 102: a draw bar; 103: and a second joint ball bearing.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
The following describes, with reference to fig. 1 to 5, an anti-derailing device for a track inspection vehicle and a track inspection vehicle provided by the present invention.
The chassis 1 of the rail detection vehicle shown in the embodiment is provided with the running wheels 11 and the side wheels 12, the running wheels 11 are used for rolling on the upper surface of the rail 2, the side wheels 12 are used for being connected with the inner side surface of the rail 2 in a rolling manner, and the rail detection vehicle can be prevented from moving along the width direction of the rail 2 by arranging the side wheels 12.
As shown in fig. 1 to 5, the derailing prevention device for a track inspection vehicle of the present embodiment includes: a universal ball bearing 3 and an elastic member 4.
The ball 31 of the universal ball bearing 3 is used for being connected with the traction mechanism 5, the ball seat 32 of the universal ball bearing 3 is connected with one end of the elastic member 4, and the other end of the elastic member 4 is used for being connected with the chassis 1 of the track inspection vehicle; the elastic member 4 is arranged along the height direction of the track inspection vehicle; the elastic member 4 has an initial state in which the running wheels 11 on the chassis 1 are used to abut against the rail 2 and a deformed state, and the length of the elastic member 4 in the height direction of the rail detection vehicle is a first length; in the deformation state, the running wheels 11 on the chassis 1 are used for being separated from the track 2, and the length of the elastic component 4 along the height direction of the track detection vehicle is a second length; wherein the first length is greater than the second length.
Specifically, in the derailing prevention device for the track inspection vehicle shown in this embodiment, by providing the universal ball bearing 3 and the elastic member 4, when the track inspection vehicle travels to the joint of the track 2 or the damaged part of the track 2 in the process of the track inspection vehicle being pulled by the traction mechanism 5 to inspect on the track 2, the chassis 1 of the track inspection vehicle may jump up and down, the weight of the traction mechanism 5 is large, the track inspection vehicle is difficult to jack up the traction mechanism 5, the traction mechanism 5 hardly generates a jumping phenomenon, that is, the relative distance between the universal ball bearing 3 and the track 2 is kept constant, when the chassis 1 jumps up, the running wheels 11 are separated from the track 2, the distance between the chassis 1 and the universal ball bearing 3 is reduced, and the elastic member 4 is further compressed, at this time, the elastic member 4 is in a deformation state, the elastic member 4 generates an elastic force, and when the elastic force acts on the chassis 1, to press the running wheels 11 against the rail 2; it can be understood that the larger the upward jumping amount of the chassis 1 is, the larger the compression amount of the elastic member 4 is, the larger the elastic force generated by the elastic member 4 is, so that the running wheels 11 can be rapidly pressed to the track 2 under the action of the larger elastic force, the separation of the running wheels 11 from the track 2 is avoided, and the derailment of the track detection vehicle is further avoided; when the track detects the turning that the car traveles to track 2, or when there is the difference in height between two tracks 2, chassis 1 can produce certain skew in the horizontal plane for track 2, ball 31 of universal ball bearing 3 can roll in ball seat 32 by self-adaptation this moment, thereby compensate chassis 1 the skew of all directions in the horizontal plane, and then prevent the chassis atress that causes by 1 lateral deviation of chassis uneven, the stability that the track detects the car and traveles on the track has been promoted, the detection precision and the life of detecting instrument on the track detects the car has been guaranteed.
It should be noted that the elastic member 4 shown in the present embodiment may be a spring or an elastic rod, wherein the deformed state of the elastic member 4 refers to a state that the elastic member 4 is compressed by a force, and the initial state of the elastic member 4 does not mean that the elastic member 4 is not stressed, and in order to increase the acting force between the running wheels 11 and the track 2, the elastic member 4 may be compressed appropriately during assembly, so that the elastic member 4 generates a certain elastic force and acts on the track 2 through the running wheels 11, so that the running wheels 11 can be tightly attached to the track 2, and therefore, the deformed state may be understood as further compression of the elastic member 4 in the initial state; the height direction of the track inspection vehicle is the direction from top to bottom or from bottom to top in fig. 3.
In some embodiments, as shown in fig. 4, the derailing prevention device for a track inspection vehicle in this embodiment further includes: a guide post 6 and a guide sleeve 7; the guide post 6 is arranged along the height direction of the track detection vehicle, one end of the guide post 6 is connected with the ball seat 32, the other end of the guide post 6 is inserted with the guide sleeve 7, and the guide sleeve 7 is connected with the chassis 1.
Specifically, when the chassis 1 of the track inspection vehicle jumps up and down, the chassis 1 drives the guide sleeve 7 to move on the guide post 6, and under the limiting effect of the guide post 6, the guide sleeve 7 can only move along the axis direction of the guide post 6, so that the swinging of the chassis 1 in the horizontal direction is reduced, and the stability of the chassis 1 is improved.
In some embodiments, as shown in fig. 4, the guide post 6 of the present embodiment includes: a first section 61 and a second section 62; one end of the first segment 61 is connected with the ball seat 32, the other end of the first segment 61 is connected with one end of the second segment 62, and the other end of the second segment 62 is inserted into the guide sleeve 7; wherein the outer diameter of the first section 61 is larger than the inner diameter of the guide sleeve 7.
Specifically, the guide post 6 shown in the present embodiment is in a stepped shaft shape, the outer diameter of the first section 61 is larger than the outer diameter of the second section 62, and the outer diameter of the first section 61 is larger than the inner diameter of the guide sleeve 7, so that the first section 61 cannot extend into the guide sleeve 7; when the amount of bounce of chassis 1 is great, the compressive capacity of elastic component 4 is great, and second section 62 stretches into uide bushing 7 completely, and at this moment, the terminal surface that uide bushing 7 is close to first section 61 one side can play limiting displacement to first section 61, and uide bushing 7 contacts with the terminal surface of first section 61 promptly to avoid elastic component 4's excessive compression.
In some embodiments, as shown in fig. 4, the elastic member 4 shown in the present embodiment comprises a spring; the spring is sleeved on the guide post 6; in the process that the guide post 6 gradually extends into the guide sleeve 7, the spring is gradually compressed, and the elastic force generated by the compressed spring acts on the chassis 1, so that the running wheels 11 press the track 2, and the derailment phenomenon caused by the separation of the running wheels 11 and the track 2 is avoided.
In some embodiments, as shown in fig. 4, the universal ball bearing of the present embodiment further includes: a screw 33; one end of the screw 33 is connected with the ball seat 32, one end of the guide post 6 is provided with a threaded hole, and the other end of the screw 33 is in threaded connection with the threaded hole.
Specifically, the universal ball bearing 3 is detachably connected with the guide post 6 by arranging the screw rod 33 on the universal ball bearing 3.
In some embodiments, as shown in fig. 1 to 5, the derailing prevention device for a track inspection vehicle in this embodiment further includes: the connecting frame 8 and the pressing block 9; one end of the connecting frame 8 is detachably connected with the traction mechanism 5, and the other end of the connecting frame 8 is connected with the pressing block 9; the pressing block 9 is provided with a groove 91, one end of the universal ball bearing 3 close to the ball 31 extends into the groove 91, the ball 31 is connected with the groove bottom of the groove 91, and the ball 31 can freely roll in the groove 91; the width of the groove 91 along the width direction of the track detection vehicle is larger than that of the universal ball bearing 3.
Specifically, traction mechanism 5 compresses tightly the driving wheel 11 of track inspection vehicle on track 2 through link 8 and compact heap 9, when the track inspection vehicle traveled to the turn of track 2, when traction mechanism 5 just passed through the turn and the track inspection vehicle has not passed through the turn, link 8 has swung certain angle this moment, link 8 has produced certain deviation with the chassis 1 of track inspection vehicle in the horizontal direction promptly, this moment, ball 31 can roll in recess 91 adaptively, thereby compensate the deviation of chassis 1, thereby the effect that compresses tightly of link 8 and compact heap 9 has been guaranteed, in order to prevent that the guide post 6 and the uide bushing 7 skew that the lateral deviation of chassis 1 leads to from damaging, and then promote the detection precision of detecting instrument on the track inspection vehicle.
In addition, the track 2 usually needs to be widened at the turning position, the maximum widening amount is 15mm, when the track inspection vehicle runs to the turning position of the track 2, the chassis 1 can be widened in a self-adaptive manner, meanwhile, as the width of the groove 91 is larger than that of the universal ball bearing 3, the ball 31 can also roll in the groove 91 in a self-adaptive manner, so that the situation that the dislocation is formed between the chassis 1 and the connecting frame 8 after the chassis 1 is widened in a self-adaptive manner is avoided, the allowance of rolling of the ball 31 in the groove 91 is 20mm on each of the left side and the right side of the ball 31, namely the total rolling allowance is 40mm, and the situation that the track 2 is wide in the turning position or the track gauge exceeds the standard is adapted by setting the rolling allowance; the left and right sides of the ball 31 are based on the perspective of fig. 4.
In some embodiments, as shown in fig. 1 and 5, the derailing prevention device for a rail inspection vehicle of the present embodiment further includes: a first joint ball bearing 101, a traction rod 102, and a second joint ball bearing 103; the inner ring of the first joint ball bearing 101 is detachably connected with the connecting frame 8, the outer ring of the first joint ball bearing 101 is in threaded connection with one end of the traction rod 102, the other end of the traction rod 102 is in threaded connection with the outer ring of the second joint ball bearing 103, and the inner ring of the second joint ball bearing 103 is detachably connected with the chassis 1.
Specifically, by rotating the traction rod 102, the relative distance between the first joint ball bearing 101 and the second joint ball bearing 103 can be adjusted, so that the connection requirements of different distances between the connecting frame 8 and the rail detection vehicle are met; meanwhile, the inner ring of the first joint ball bearing 101 can rotate in the outer ring of the first joint ball bearing 101, and the inner ring of the second joint ball bearing 103 can rotate in the outer ring of the second joint ball bearing 103, so that when the chassis 1 of the rail detection vehicle deviates or vibrates, the first joint ball bearing 101 and the second joint ball bearing 103 can adaptively compensate the deviation amount, and the reliability of connection between the connecting frame 8 and the chassis 1 is ensured.
Further, the inner ring of the first joint ball bearing 101 may be coupled to the coupling frame 8 by a latch, and the inner ring of the second joint ball bearing 103 may be coupled to the chassis 1 by a latch.
In some embodiments, as shown in fig. 1 and 2, the connecting frame 8 of the present embodiment includes: a first bracket 81 and a second bracket 82; one end of the first bracket 81 is rotatably connected to one end of the second bracket 82.
Specifically, the first bracket 81 and the second bracket 82 can be unfolded and folded by the rotational connection of the first bracket 81 and the second bracket 82, and the occupied space of the connecting frame 8 is reduced when the first bracket 81 and the second bracket 82 are folded.
Further, the first bracket 81 and the second bracket 82 may be connected by a hinge.
The utility model also provides a track inspection car, include: the track inspection vehicle comprises a chassis 1, traveling wheels 11, lateral wheels 12 and the anti-derailing device for the track inspection vehicle; wherein, the running wheels 11 and the side wheels 12 are respectively connected with the chassis 1 in a rotating way, and the axes of the running wheels 11 are vertical to the axes of the side wheels 12.
The track detection vehicle adopts the derailing prevention device for the track detection vehicle shown in the above embodiment, and the specific structure of the derailing prevention device for the track detection vehicle refers to the above embodiment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. An derailment prevention device for a track inspection vehicle, comprising: a universal ball bearing and an elastic member;
the ball seat of the universal ball bearing is connected with one end of an elastic component, and the other end of the elastic component is connected with a chassis of the track inspection vehicle; the elastic component is arranged along the height direction of the track detection vehicle;
the elastic component has an initial state and a deformation state, in the initial state, the running wheels on the chassis are used for being abutted with the track, and the length of the elastic component along the height direction of the track detection vehicle is a first length; in the deformation state, the running wheels on the chassis are used for being separated from the track, and the length of the elastic component along the height direction of the track detection vehicle is a second length; wherein the first length is greater than the second length.
2. The derailment prevention device for a rail inspection vehicle according to claim 1,
the derailing prevention device for the track inspection vehicle further comprises: a guide post and a guide sleeve;
the guide posts are arranged along the height direction of the track inspection vehicle, one ends of the guide posts are connected with the ball seats, the other ends of the guide posts are connected with the guide sleeves in an inserted mode, and the guide sleeves are connected with the chassis.
3. The derailment prevention device for a rail inspection vehicle according to claim 2,
the guide post includes: a first segment and a second segment;
one end of the first section is connected with the ball seat, the other end of the first section is connected with one end of the second section, and the other end of the second section is inserted into the guide sleeve;
the first segment has an outer diameter greater than an inner diameter of the guide sleeve.
4. The derailment prevention device for a rail inspection vehicle according to claim 2,
the elastic member comprises a spring; the spring is sleeved on the guide post.
5. The derailment prevention device for a rail inspection vehicle according to claim 2,
the universal ball bearing further includes: a screw;
one end of the screw rod is connected with the ball seat, one end of the guide post is provided with a threaded hole, and the other end of the screw rod is in threaded connection with the threaded hole.
6. The derailment prevention device for a rail inspection vehicle according to claim 1,
the derailing prevention device for the track inspection vehicle further comprises: the connecting frame and the pressing block;
one end of the connecting frame is detachably connected with the traction mechanism, and the other end of the connecting frame is connected with the pressing block; a groove is formed in the compression block, one end, close to the ball, of the universal ball bearing extends into the groove, and the ball is connected with the groove bottom of the groove;
the width of the groove in the width direction of the track detection vehicle is larger than that of the universal ball bearing.
7. The derailment prevention device for a rail inspection vehicle according to claim 6,
the derailing prevention device for the track inspection vehicle further comprises: the device comprises a first joint ball bearing, a traction rod and a second joint ball bearing;
the inner ring of the first joint ball bearing is detachably connected with the connecting frame, the outer ring of the first joint ball bearing is in threaded connection with one end of the traction rod, the other end of the traction rod is in threaded connection with the outer ring of the second joint ball bearing, and the inner ring of the second joint ball bearing is detachably connected with the chassis.
8. The derailment prevention device for a rail inspection vehicle according to claim 6,
the link includes: a first bracket and a second bracket;
one end of the first support is rotatably connected with one end of the second support.
9. A rail inspection vehicle, comprising: chassis, running wheels, lateral wheels and an anti-derailment device for a track inspection vehicle according to any one of claims 1 to 8;
the running wheels and the lateral wheels are respectively connected with the chassis in a rotating way, and the axes of the running wheels are vertical to the axes of the lateral wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220892701.0U CN217320364U (en) | 2022-04-18 | 2022-04-18 | Anti-derailing device for track detection vehicle and track detection vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220892701.0U CN217320364U (en) | 2022-04-18 | 2022-04-18 | Anti-derailing device for track detection vehicle and track detection vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN217320364U true CN217320364U (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220892701.0U Active CN217320364U (en) | 2022-04-18 | 2022-04-18 | Anti-derailing device for track detection vehicle and track detection vehicle |
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| Country | Link |
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| CN (1) | CN217320364U (en) |
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