CN214952110U - Intelligent convertible car coupler detection device - Google Patents
Intelligent convertible car coupler detection device Download PDFInfo
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- CN214952110U CN214952110U CN202120935468.5U CN202120935468U CN214952110U CN 214952110 U CN214952110 U CN 214952110U CN 202120935468 U CN202120935468 U CN 202120935468U CN 214952110 U CN214952110 U CN 214952110U
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Abstract
The utility model discloses an intelligent convertible car coupler detection device, which comprises a car body, a fixed disc rack and a rotary disc, wherein the car body comprises a car body and a movable support, the fixed disc rack is arranged on one side of the back surface of the car body, the rotary disc is rotatably arranged on one side of the fixed disc rack, the cross section of the fixed disc rack is in a U-shaped structure arrangement, the cross section of the rotary disc is in a hexagonal structure arrangement, and an annular equidistant array of the outer wall of the rotary disc is provided with six groups of car coupler detection devices; the detection device body is the cavity structure setting, be provided with liquid crystal display on the preceding coverboard of detection device body, be provided with the wind pressure on the back coverboard of detection device body and detect connecting pipe and top and move trigger push rod, can switch "detect with the coupling" at any time according to the difference of the model of required detection coupling, realize that high-efficient quick detects the coupling type of difference, improve the convenience that the performance detected, whether intelligent judgement should be detected the coupling and normally.
Description
Technical Field
The utility model belongs to the technical field of the EMUs coupling, specifically be an intelligent convertible coupling detection device.
Background
With the rapid development of economy in China, China pays more and more attention to the problem and improvement of high-speed motor train unit maintenance. High-speed motor train units are also developing more and more intelligently. And the problems of complex overhaul, potential safety hazards and the like exist in conventional overhaul, more scientific and effective overhaul tools need to be developed and applied, state maintenance and preventive overhaul are carried out by utilizing intelligent equipment on the basis of planned overhaul, and the safe application of the high-speed motor train unit is ensured.
In the existing coupler detection technology, although a lot of technologies are good and are continuously improved, the scheme further meets the working requirements in the actual work, the satisfaction degree of field workers on the detection and maintenance effects is not high, the existing intelligent degree is not high enough, and the improvement is still needed. When the condition that the multi-vehicle type overhauls simultaneously, the different grade type coupling switching process is loaded down with trivial details, and is efficient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an intelligent convertible coupling detection device, this detection device can provide the detection for the coupling of different models, has improved maintenance efficiency, makes the maintenance result more reliable, provides the guarantee for EMUs operation safety, has solved the problem of proposition among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an intelligent convertible car coupler detection device comprises a car body, a fixed disc rack and a rotary disc, wherein the car body comprises a car body and a car bottom walking part arranged below the car body, the fixed disc rack is connected to the car body, the rotary disc is rotatably mounted at one end of the fixed disc rack, the cross section of the rotary disc is of a hexagonal structure, and six groups of car coupler detection devices of different models are arranged on an annular equidistant array of the outer wall of the rotary disc;
the car coupler detection device comprises a detection device body, wherein the detection device body is arranged in a cavity structure, a liquid crystal display screen is arranged on a front shell plate of the detection device body, a wind pressure detection connecting pipe and a jacking trigger push rod are arranged on a rear shell plate of the detection device body, and both the wind pressure detection connecting pipe and the jacking trigger push rod penetrate through the rear shell plate of the detection device body and are positioned on two sides of the rear shell plate; a pin type wind pressure sensor is arranged at one end of the wind pressure detection connecting pipe, which is positioned in the cavity structure, the push rod of the jacking trigger comprises a hydraulic pump and a hydraulic rod fixedly arranged at the output shaft end of the hydraulic pump, and a pressure sensor is arranged at the top end of the hydraulic rod;
the one side that liquid crystal display is located cavity structure inside is connected with signal conversion module, signal amplification module, emission module and data processing module respectively, signal conversion module's one end links to each other with pin formula wind pressure sensor and pressure sensor, and signal conversion module's the other end is connected with signal amplification module, data processing module and emission module in proper order, data processing module still with liquid crystal display electric signal connection.
Preferably, a concave semi-cylindrical groove is formed in the left shell plate of the detection device body, a group of upper fixing bayonets are arranged at the upper end of the rear shell plate, and a group of side fixing bayonets are arranged at the position, close to the concave semi-cylindrical groove, on the right side of the rear shell plate.
Preferably, the wind pressure detects the connecting pipe and includes that 2 main wind pressure detect the connecting pipe and 1 assist the wind pressure and detect the connecting pipe, 3 the wind pressure detects the vertical range of connecting pipe and distributes in the both sides of the fixed bayonet socket in side, the trigger push rod is moved in the top and is located the one end of keeping away from the semi-cylindrical groove of indent formula on the back shell plate.
Preferably, a locking mechanism is arranged on the right shell plate of the detection device body, and a lookout hole penetrating through the detection device body is formed in the middle of the detection device body.
Preferably, the hydraulic pump is a small plunger type hydraulic pump, the outer diameter of the hydraulic rod is larger than the maximum size of the cross section of the coupler trigger, a rubber ring is arranged outside the pin type wind pressure sensor, and the size of the rubber ring is consistent with that of the air outlet of the coupler.
Preferably, the data processing module is a single chip microcomputer, the pin type wind pressure sensor is an ELE-8051 high-pressure sensor, the main material of the detection device is 304 stainless steel, and the density of the detection device is 7930Kg/m3The yield strength was 206GPa, and the Poisson's ratio was 0.27.
Preferably, the rotating shaft is fixedly connected inside the rotating disc through a flat key, two ends of the rotating shaft are rotatably installed on one side of the fixed disc rack through deep groove ball bearings, a first gear is fixedly installed at the top end of the rotating shaft, a second gear is rotatably installed on one side of the top of the fixed disc rack, the first gear and the second gear are in meshing transmission, and a shifting wheel is fixedly installed on the upper surface of the second gear.
Preferably, the top of the fixed tray frame is close to one side of the second gear and is rotatably provided with a stand column, the top end of the stand column is fixedly provided with a transverse plate, the transverse plate is internally and slidably provided with a positioning rod, the bottom end of the positioning rod is fixedly provided with a limiting plate, a spring is fixedly arranged between the limiting plate and the transverse plate, and the upper surface of the second gear is provided with an annular groove matched with the positioning rod.
Preferably, a bracket is fixedly mounted on the back of the vehicle body, and one side, far away from the turntable, of the fixed tray frame is fixedly connected with the bracket.
Preferably, the vehicle bottom walking part comprises a supporting plate and four groups of supporting legs fixedly mounted on the bottom surface of the supporting plate, wheels matched with the rails are arranged at the bottom ends of the supporting legs, and the vehicle body is fixedly mounted on the upper surface of the supporting plate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the detection device of the utility model can switch the detection car coupler at any time according to the different models of the car coupler to be detected, thus realizing the high-efficiency and quick detection of different car coupler types;
2. the utility model discloses detection device through set up pin formula positioning sensor in the coupling detection device, on the one hand can assist the location of accomplishing the device, on the other hand can more accurate measure the numerical value of wind pressure to get off and show on the LCD screen with concrete numerical value record, pass to terminal equipment at last, improve the convenience that the performance detected;
3. the utility model discloses detection device drives the hydraulic stem action through set up small-size plunger type hydraulic pump to it provides power in coupling detection device, slowly exerts pressure to the trigger, and pressure sensor sets up at the hydraulic stem head, exerts the pressure on the trigger to the hydraulic stem and measures, and cooperation pin formula positioning sensor data collection should be detected the coupling and whether normal.
Drawings
Fig. 1 is a schematic view of a front view structure provided in an embodiment of the present invention;
fig. 2 is a schematic top view of the embodiment of the present invention;
fig. 3 is a schematic diagram of a right-view structure provided in an embodiment of the present invention;
fig. 4 is a schematic left-view structural diagram according to an embodiment of the present invention;
fig. 5 is an enlarged schematic structural diagram of a portion a in fig. 1 according to an embodiment of the present invention;
fig. 6 is a schematic view of a front-view direction three-dimensional structure of a car coupler detection device provided in the embodiment of the present invention;
fig. 7 is a schematic view of a rear view direction three-dimensional structure of the car coupler detection device provided in the embodiment of the present invention;
fig. 8 is a schematic front sectional view of the embodiment of the present invention;
fig. 9 is a schematic top view of a cross-sectional structure of a wind pressure detecting connecting pipe and a push rod of a jacking trigger provided in an embodiment of the present invention;
fig. 10 is a schematic perspective view of a locking mechanism according to an embodiment of the present invention;
fig. 11 is a block diagram of a data acquisition system of a sensor provided in an embodiment of the present invention;
fig. 12 is a schematic view of an installation structure of the fixing plate rack and the turntable according to an embodiment of the present invention.
In the figure: 1. a vehicle body; 101. a vehicle body; 102. a vehicle bottom running part; 1021. a support plate; 1022. a support leg; 1023. a wheel; 2. fixing the tray frame; 3. a turntable; 301. a rotating shaft; 302. a first gear; 303. a second gear; 4. a coupler detection device; 401. a detection device body; 4011. a right shell plate; 402. a wind pressure detection connecting pipe; 4021. a main wind pressure detection connecting pipe; 4022. the auxiliary wind pressure detection connecting pipe; 403. pushing the trigger push rod; 4031. a hydraulic pump; 4032. a hydraulic lever; 4033. a pressure sensor; 404. a pin type wind pressure sensor; 5. a liquid crystal display screen; 6. a data processing module; 7. an inwardly concave semi-cylindrical groove; 8. a bayonet is fixed at the upper part; 9. a bayonet is fixed on the side surface; 10. a locking mechanism; 1001. an L-shaped hook rod; 1002. a slide bar mechanism; 1003. a pole frame; 1004. locking the wrench; 11. a column; 12. a transverse plate; 13. positioning a rod; 14. a limiting plate; 15. a spring; 16. an annular groove; 17. a bracket; 18. a car coupler; 19. a coupler trigger; 20. lookout holes; 21. a thumb wheel; 22. a T-shaped nut; 23. a screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-12, the present invention provides the following technical solutions:
an intelligent convertible car coupler detection device comprises a car body 1, a fixed disc rack 2 and a rotary disc 3, wherein the car body 1 comprises a car body 101 and a car bottom walking part 102, the car bottom walking part 102 comprises a supporting plate 1021 and four groups of supporting legs 1022 fixedly mounted on the bottom surface of the supporting plate 1021, wheels 1023 matched with a track are arranged at the bottom ends of the supporting legs 1022, the car body 101 is fixedly mounted on the upper surface of the supporting plate 1021, a bracket 17 is fixedly mounted on the back surface of the car body 101, one side of the fixed disc rack 2, far away from the rotary disc 3, is fixedly connected with the bracket 17, a shell of the car body 1 is made of a light environment-friendly material, an LED display screen is adopted to display the working states of the car body 1 and the car coupler detection device 4, and the progress of maintenance work can be visually followed; the running part is driven by electric power, the wheel 1023 matched with the track adopts a general wheel pair capable of moving on a standard rail, an elastic damping device is arranged, and the brake adopts a brake shoe brake mode.
The fixed disc frame 2 is arranged on one side of the back face of the car body 101, the rotary disc 3 is rotatably arranged on one side of the fixed disc frame 2, the section of the fixed disc frame 2 is in a U-shaped structure, the section of the rotary disc 3 is in a hexagonal structure, the rotary shaft 301 is fixedly connected inside the rotary disc 3 through a flat key, two ends of the rotary shaft 301 are rotatably arranged on one side of the fixed disc frame 2 through deep groove ball bearings, a first gear 302 is fixedly arranged at the top end of the rotary shaft 301, a second gear 303 is rotatably arranged on one side of the top of the fixed disc frame 2, the first gear 302 and the second gear 303 are in meshing transmission, a dial wheel 21 is fixedly arranged on the upper surface of the second gear 303, and when the models of the car coupler detection device 4 and the car coupler 18 need to be matched, the dial wheel 21 drives the second gear 303 to drive the first gear 302 to rotate, so as to drive the rotary shaft 301 to finally dial the rotary disc 3 to rotate on one side of the fixed disc frame 2, selecting a car coupler detection device 4 matched with a car coupler 18; fixed plate frame 2 top is close to second gear 303 one side and rotates and installs stand 11, stand 11 top fixed mounting has diaphragm 12, slidable mounting has locating lever 13 in diaphragm 12, locating lever 13 bottom fixed mounting has limiting plate 14, fixed mounting has spring 15 between limiting plate 14 and the diaphragm 12, second gear 303 upper surface is seted up the annular groove 16 who matches with locating lever 13, sets gradually stand 11, diaphragm 12, locating lever 13, limiting plate 14 and spring 15, after coupling detection device 4 selects, mentions locating lever 13 back, rotates locating lever 13 to annular groove 16 top, utilizes spring 15's reaction force, makes in 13 bottoms of locating lever insert annular groove 16 completely, makes carousel 3 can not take place to deflect, better cooperation.
The outer wall of the rotary disc 3 is annularly and equidistantly arrayed with six groups of car coupler detection devices 4, each car coupler detection device 4 comprises a detection device body 401, the detection device body 401 is in a cavity structure, a liquid crystal display screen 5 is arranged on a front shell plate of the detection device body 401, a wind pressure detection connecting pipe 402 and a jacking trigger push rod 403 are arranged on a rear shell plate of the detection device body 401, and the wind pressure detection connecting pipe 402 and the jacking trigger push rod 403 both penetrate through the rear shell plate of the detection device body 401 and are located on two sides of the rear shell plate; the one end that wind pressure detects connecting pipe 402 and is located cavity structure the inside part is provided with pin formula wind pressure sensor 404, it includes hydraulic pump 4031 and fixed mounting in hydraulic stem 4032 of hydraulic pump 4031 output shaft end to push up movable trigger push rod 403, hydraulic stem 4032 top is provided with pressure sensor 4033, indent formula semi-cylindrical groove 7 has been seted up in the left shell plate of detection device body 401, the upper end of backshell plate is provided with a set of upper portion fixed bayonet 8, the position that the right side of backshell plate is close to indent formula semi-cylindrical groove 7 is provided with a set of side fixed bayonet 9, wind pressure detects connecting pipe 402 and includes 2 main wind pressure detection connecting pipe 4021 and 1 auxiliary wind pressure detection connecting pipe 4022, 3 the vertical range of wind pressure detection connecting pipe 402 distributes in the both sides of side fixed bayonet 9, it is located the backshell plate and keeps away from the one end of indent formula semi-cylindrical groove 7 to push rod 403, aligning two main air ducts in the middle of the coupler 18 to be detected according to two pin-type air pressure sensors 404 on the device, and then inserting the pin-type air pressure sensors 404 into the two main air ducts of the coupler 18 to be detected to finish the primary positioning of the device;
the right shell plate 4011 of the detection device body 401 is provided with a locking mechanism 10, the locking mechanism 10 comprises an L-shaped hook rod 1001, a slide rod mechanism 1002, a locking wrench 1004 and a rod frame 1003, the rod frame 1003 is fixedly connected to one side of the right shell plate 4011, the slide rod mechanism 1002 is pinned to one side of the rod frame 1003, the L-shaped hook rod 1001 is pinned to one side of the slide rod mechanism 1002, the locking wrench 1004 is pinned to the rear side of the rod frame 1003, the L-shaped hook rod 1001 and the rear side of the coupler 18 are matched, a lookout hole 20 penetrating through the detection device body 401 is arranged at the middle position of the detection device body 401, the hydraulic pump 4031 is a small plunger type hydraulic pump, the outer diameter of the hydraulic rod 4032 is larger than the maximum size of the section of the coupler trigger 19, a rubber ring is arranged outside the pin type wind pressure sensor 404, the size of the rubber ring is consistent with the size of the air outlet of the coupler 18, and the locking mechanism 10 is utilized, after the coupler 18 and the coupler detection device 4 are connected firmly, a hydraulic pump 4031 in the detection device is started to drive a hydraulic rod 4032 to push forwards, the coupler trigger 19 is jacked, pressure is continuously applied until the coupler trigger 19 acts, the coupler 18 finishes coupling action, and a pressure sensor records the pressure applied to the coupler trigger 19 by the hydraulic rod 4032; the coupler trigger 19 is triggered, when the coupler 18 is connected, two groups of main air channels and one group of auxiliary air channels also spray high-pressure air outwards, the pin type air pressure sensor 404 bears wind power and records the obtained pressure value, the hydraulic rod 4032 stops working and displays the values recorded by the pressure sensor 4033 and the pin type air pressure sensor 404 on the liquid crystal display screen 5 through the processing of the signal conversion module, the signal amplifier and the data processing module 6, and the values are transmitted to the terminal equipment through the transmitting module.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. The utility model provides a convertible coupling detection device of intellectuality, includes automobile body (1), fixed plate rail (2) and carousel (3), its characterized in that: the car body (1) comprises a car body (101) and a car bottom walking part (102) arranged below the car body (101), a fixed disc frame (2) is connected to the car body (101), a rotary disc (3) is rotatably mounted at one end of the fixed disc frame (2), the section of the rotary disc (3) is of a hexagonal structure, and six groups of car coupler detection devices (4) with different models are arranged on the outer wall of the rotary disc (3) in an annular equidistant array;
the coupler detection device (4) comprises a detection device body (401), the detection device body (401) is arranged in a cavity structure, a liquid crystal display (5) is arranged on a front shell plate of the detection device body (401), a wind pressure detection connecting pipe (402) and a jacking trigger push rod (403) are arranged on a rear shell plate of the detection device body (401), and the wind pressure detection connecting pipe (402) and the jacking trigger push rod (403) both penetrate through the rear shell plate of the detection device body (401) and are positioned on two sides of the rear shell plate; one end, located at the inner part of the cavity structure, of the wind pressure detection connecting pipe (402) is provided with a pin type wind pressure sensor (404), the jacking trigger push rod (403) comprises a hydraulic pump (4031) and a hydraulic rod (4032) fixedly mounted at the output shaft end of the hydraulic pump (4031), and the top end of the hydraulic rod (4032) is provided with a pressure sensor (4033);
liquid crystal display (5) are located the inside one side of cavity structure and are connected with signal conversion module, signal amplification module, emission module and data processing module (6) respectively, signal conversion module's one end links to each other with pin formula wind pressure sensor (404) and pressure sensor (4033), and signal conversion module's the other end is connected with signal amplification module, data processing module (6) and emission module in proper order, data processing module (6) still with liquid crystal display (5) electric signal connection.
2. An intelligent convertible coupler detection device according to claim 1, further comprising: the left shell plate of the detection device body (401) is internally provided with an inwards concave semi-cylindrical groove (7), the upper end of the rear shell plate is provided with a set of upper fixing bayonets (8), and the position, close to the inwards concave semi-cylindrical groove (7), of the right side of the rear shell plate is provided with a set of side fixing bayonets (9).
3. An intelligent convertible coupler detection device according to claim 2, further comprising: wind pressure detection connecting pipe (402) include that 2 main wind pressure detect connecting pipe (4021) and 1 assist wind pressure to detect connecting pipe (4022), 3 the wind pressure detects the vertical range of connecting pipe (402) and distributes in the both sides of the fixed bayonet socket in side (9), the trigger push rod is moved in the top (403) and is located the one end of keeping away from indent formula semi-cylindrical groove (7) on the backshell plate.
4. An intelligent convertible coupler detection device according to claim 2, further comprising: the lock mechanism (10) is arranged on a right shell plate (4011) of the detection device body (401), and an observation hole (20) penetrating through the detection device body (401) is formed in the middle of the detection device body (401).
5. An intelligent convertible coupler detection device according to claim 1, further comprising: the hydraulic pump (4031) is a small plunger type hydraulic pump, the outer diameter of a hydraulic rod (4032) is larger than the maximum size of the section of a coupler trigger (19), a rubber ring is arranged outside the pin type wind pressure sensor (404), and the size of the rubber ring is consistent with that of a coupler air outlet.
6. An intelligent convertible coupler detection device according to claim 1, further comprising: the data processing module (6) is a single chip microcomputer, the pin type wind pressure sensor (404) is an ELE-8051 high-pressure sensor, the main material of the detection device is 304 stainless steel, and the density of the detection device is 7930Kg/m3The yield strength was 206GPa, and the Poisson's ratio was 0.27.
7. An intelligent convertible coupler detection device according to claim 1, further comprising: carousel (3) is inside through flat key fixedly connected with pivot (301), pivot (301) both ends are all rotated through deep groove ball bearing and are installed in one side of fixed plate rail (2), pivot (301) top fixed mounting has first gear (302), fixed plate rail (2) top one side is rotated and is installed second gear (303), first gear (302) and second gear (303) meshing transmission, fixed surface installs thumb wheel (21) on the second gear.
8. An intelligent convertible coupler detection device according to claim 1, further comprising: fixed plate rail (2) are the cuboid type, and the middle part of fixed plate rail (2) can supply the hook to pass through smoothly for link up the structure, fixed plate rail (2) top is close to second gear (303) one side and rotates and installs stand (11), stand (11) top fixed mounting has diaphragm (12), slidable mounting has locating lever (13) in diaphragm (12), locating lever (13) bottom fixed mounting has limiting plate (14), fixed mounting has spring (15) between limiting plate (14) and diaphragm (12), annular groove (16) that match with locating lever (13) are seted up to second gear (303) upper surface, automobile body (101) back fixed mounting has bracket (17), carousel (3) one side and bracket (17) fixed connection are kept away from in fixed plate rail (2).
9. An intelligent convertible coupler detection device according to claim 1, further comprising: carousel outer lane annular equidistance is rotated and is installed T type nut (22), the preceding shell plate fixed mounting placed in the middle of detection device body (401) has screw rod (23), T type nut (22) threaded connection is kept away from in screw rod (23).
10. An intelligent convertible coupler detection device according to claim 1, further comprising: the vehicle bottom running part (102) comprises a supporting plate (1021) and four groups of supporting legs (1022) fixedly mounted on the bottom surface of the supporting plate (1021), wheels (1023) matched with a track are arranged at the bottom ends of the supporting legs (1022), and the vehicle body (101) is fixedly mounted on the upper surface of the supporting plate (1021).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120935468.5U CN214952110U (en) | 2021-05-05 | 2021-05-05 | Intelligent convertible car coupler detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120935468.5U CN214952110U (en) | 2021-05-05 | 2021-05-05 | Intelligent convertible car coupler detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214952110U true CN214952110U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120935468.5U Expired - Fee Related CN214952110U (en) | 2021-05-05 | 2021-05-05 | Intelligent convertible car coupler detection device |
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| CN (1) | CN214952110U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114954552A (en) * | 2022-06-01 | 2022-08-30 | 武汉铁路职业技术学院 | Bullet train coupler trigger device |
-
2021
- 2021-05-05 CN CN202120935468.5U patent/CN214952110U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114954552A (en) * | 2022-06-01 | 2022-08-30 | 武汉铁路职业技术学院 | Bullet train coupler trigger device |
| CN114954552B (en) * | 2022-06-01 | 2023-12-22 | 武汉铁路职业技术学院 | Bullet train coupler firing device |
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Granted publication date: 20211130 |