CN201619576U - Wagon with sliding roof - Google Patents
Wagon with sliding roof Download PDFInfo
- Publication number
- CN201619576U CN201619576U CN201020143761XU CN201020143761U CN201619576U CN 201619576 U CN201619576 U CN 201619576U CN 201020143761X U CN201020143761X U CN 201020143761XU CN 201020143761 U CN201020143761 U CN 201020143761U CN 201619576 U CN201619576 U CN 201619576U
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- Prior art keywords
- roof
- slide
- guide rail
- headwall
- car body
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- Expired - Lifetime
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Abstract
The utility model discloses a wagon with a sliding roof, which comprises a wagon body, a braking device, a coupler damping device and a bogie, wherein the wagon body mainly comprises a chassis, side walls, an end wall, an upper roof, a lower roof, a wagon door and the like, the wagon body is in a staggered sliding roof structure, and the aperture of each roof along the longitudinal direction of the wagon body is larger than 10m; the upper roof of the staggered sliding roof structure is shorter than lower roof, and a vertical limit device is arranged under each roof; and the staggered sliding roof structure comprises a sliding rainproof device, a longitudinal rainproof device, inner and outer locking devices, a dismountable push rod and the like. The utility model can load and unload large goods conveniently and safely, and has good rainproof, snow-resistant and sand-proof functions.
Description
Technical field
The utility model belongs to the railway transportation mechanical manufacturing field, relates in particular to a kind of manufacturing of slide roof wagon.
Background technology
Box car is mainly used in the goods that Exposure to Sunlight, sleet invasion and attack are avoided in transportation.Box car is limited because of door opening degree, the large cargo that can't the load profile size surpasses the aperture of door aperture, for solving the railway transportation problem of this class goods, the eighties of last century early fifties, France begins one's study from the novel box car of top loading-unloading goods, and the roof of this box car all adopts bascule (hereinafter to be referred as sliding roof box car).At present, European various countries have developed the sliding roof box car of multiple patterns such as opposite opened, roller shutter type, covering type, soft canopy formula, and technology is comparatively ripe.
1998, China began to carry out the research of sliding roof box car, started late, and vehicle is comparatively single at present.Because vertical aperture of the existing sliding roof box car roof of China only about 7m, the roof aperture is less than normal, the large cargo that can't the cargo length size surpasses 7m, cause that this class high added value goods is for example large-scale, valuable equipment etc. can't adopt railway transportation easily, and have to adopt other transportation modes such as highway, increase traffic cost, haulage time, strengthened the difficulty of long-distance transportation.
Except that the little problem of vertical aperture, many with a kind of lifting roof construction alive in the car body design of railway sliding roof box car in the roof construction design of living.The structure of this slippage roof and working process are along the length over ends of body direction two movably top covers to be set respectively at the box car top, along length over ends of body direction correspondence two tracks are set above every roof.Earlier one of top cover is lifted by lifting structures when opening top cover and fall into dragging track, open top cover then.This slipping mechanism complicated operation, rainproof, snow, dust storm function are bad, and are difficult for opening and closing.
Increase the design of roof aperture and not only the slip rain-proof structure is had higher requirement, the design of whole car body is also had different needs, as locking system, full car rain repellant system etc.
The utility model content
The utility model discloses a kind of box car fabrication scheme with big aperture roof according to deficiency of the prior art, and the utility model is realized by following technical proposal:
Slide roof wagon by car body, brake equipment, coupler and draft gear and bogie truck totally four parts form, wherein, car body mainly wraps underframe, side wall, headwall, roof, car door, goods with locking device etc.; Its gordian technique is: vehicle has adopted the soft-top of the formula structure that staggers, roof bottom be provided with roller, can be along the slip of the guide rail be arranged in the side wall top chord outside, make roof along car body longitudinally aperture be not less than 10m; Be equipped with two-layer rubber weather strip at roof vertical (two ends), roof laterally adopts non-contacting labyrinth type rain-proof structure, prevents that sleet into the car; Roof adopts inside and outside associating locking mode: arrange that in the outside, car body end 2 covers have the four link type end locking mechanism at motion dead point, roof is pressed on the headwall inboard, realize vertical locking of roof; 8 cover roof internal locks in the side wall inboard close the vertical locking that device is realized roof.Adopt detachable push rod, handle roof and slide.The every side in car body middle part is provided with door among the 1 fan Sai Lashi, and 2,3 diagonally opposing corners of car body respectively are provided with 1 fan swing-in side door, and underframe is provided with 8 and is used for fixing the goods locking device.
Specifically: comprise the box car of car body, brake equipment, coupler and draft gear and bogie truck, wherein car body mainly comprises underframe, side wall, headwall, goes up roof, roof, car door, goods be with locking device etc. down; Wherein car body has adopted the formula slide roof structure that staggers, roof bottom be provided with roller, can be along the slip of the guide rail be arranged in the side wall top chord outside, each roof along car body longitudinally aperture be not less than 10m.
The described formula slide roof structure that staggers is to go up roof to be arranged in down the roof top, last roof is shorter than following roof, and each roof below has vertical inhibiting device respectively, and vertical inhibiting device is installed on the roof by bolt assembly, each roof below can be 4 to 8, and the best is 6.
Further the described formula slide roof structure that staggers comprises the slip rain insensitive device that is installed under the roof and is installed in vertical rain insensitive device in headwall and the roof.
The further described formula slide roof structure that staggers also comprises the outer locking device that is installed in the headwall outside.
The further described formula slide roof structure that staggers also comprises the interior locking device that is installed in side wall and is installed in the push rod of side wall and roof detachable.
The described vertical inhibiting device of roof down is the L shaped plate part, adopt bolt assembly to be installed in down the roof inboard, after guaranteeing down that the roof roller is put into guide rail, the vertical gap that 5～8mm is arranged between vertical inhibiting device and U type shelves bar, promptly do not hinder roof to slide, thereby prevent effectively that again roof roller getaway from avoiding down roof to lose support and fall.
The described vertical inhibiting device of going up roof is the L shaped plate part, adopt bolt assembly to be installed in the roof cant rail outside, after guaranteeing that the roof roller is put into guide rail, the vertical gap that 5～8mm is arranged between vertical inhibiting device and guide rail, promptly do not hinder roof to slide, effectively prevent roof roller getaway again, avoid roof to lose support and fall.
Described roof slip rain insensitive device comprises the top chord that is positioned at side wall top, guide rail, stay bearing plate, roller, goes up roof, roof down, wherein top chord outside welding successively under the roof guide rail, the rail support plate that slide and keep supplying the guide rail that roof slides; Last roof is installed roller and is slided at guide rail; Following roof is installed roller and is slided at guide rail, and the roller of last roof and following roof can be 6 respectively; In the guide rail bottom flashing board is arranged, weather shield is arranged above top chord.
Described vertical rain insensitive device is provided with rainproof rubber strip in the groove of the camber beam at upper and lower roof two ends, the headwall upper inside wall also is provided with rainproof rubber strip; Be provided with drainage channel at the headwall inwall; An end that leans the car body line of centers is provided with manger getting off.
Described outer locking device comprises that operating handle, active rotating shaft composition, pull bar, driven spindle are formed, spring spacer bar, wherein active rotating shaft is formed to be made up of driven axle bed active axle bed, driven spindle and is installed on the headwall, operating handle, active rotating shaft composition, pull bar, driven spindle composition order vertically connect and compose a four-bar linkage that the motion dead point is arranged, and the driven spindle two ends are provided with latch hook.
Locking device comprises that the roof internal lock closes device and following roof internal lock closes device in described, and device comprises gib head screw rod, mount pad and jam nut.
The utility model compared with prior art has following advantage:
1, greater than 10m, can load existing box car can't cargo-carring large cargo along the longitudinal direction of car maximum opening for roof, can load and transport again to be fit to the existing cargo-carring ordinary goods of box car.
2, roof adopts the formula structure that staggers, and roof is made up of upper and lower roof, and upper and lower roof has dragging track separately; The operator stands in ground and just can promote roof and slide, and is easy to operate, laborsaving.
3, roof adopts inside and outside associating locking mode, has antitheft preferably effect.
4, roof vertically is provided with two-layer rubber weather strip and stops rainwater, and roof laterally adopts non-contacting labyrinth type rain-proof structure, and water-resistant performance is reliable.
5, at 2,3 diagonally opposing corners of car body the side door that passes in and out for operating personal is set.Both sides, car body middle part are provided with door among the Sai Lashi that aperture is not less than 3m, are convenient to load and unload ordinary goods.
6, underframe is provided with and is used for fixing large cargo with being provided with bolt knot seat in the middle part of locking device, place, body inner side the foot of a wall portion floor and the side wall, is convenient to the loading and reinforcing of goods, guarantees cargo transportation security.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is that the utility model uses scheme drawing at box car;
Fig. 2 is that the utility model laterally uses scheme drawing at box car;
Fig. 3 is the horizontal section partial schematic diagram of the utility model slip rain-proof structure;
Fig. 4 is that the utility model roof is opened vertically rain-proof structure sectional schematic diagram of back;
Fig. 5 is that the utility model roof is closed vertically rain-proof structure sectional schematic diagram of back;
Fig. 6 is the utility model roof locking scheme drawing;
Fig. 7 is that the utility model roof is opened scheme drawing;
Fig. 8 is installation signal as the figure of the vertical locking device of the utility model on vehicle;
Fig. 9 is installation signal as the figure of the vertical inhibiting device of the utility model on following roof;
Figure 10 is installation signal as the figure of the vertical inhibiting device of the utility model on last roof.
1 is underframe among the figure, the 2nd, and side door, the 3rd, bogie truck, the 4th, side wall, the 5th, car door, the 6th, brake equipment, the 7th, coupler and draft gear, the 8th, headwall, the 9th, locking device, the 10th, following roof, the 11st, last roof, the 12nd, goods locking device, the 1.1st, curb girder, 1.2 be guide rail, 1.3 be floor compartment, the 1.4th, fasten the knot seat, the 4.1st, lateral column, 4.2 be the side cross band, 4.3 be side plate, the 4.4th, ventipane, the 4.5th, staircase, 4.6 fasten the knot seat, 4.7 be tie-beam, the 4.8th, curb girder, the 4.9th, stay bearing plate, 4.10 be that roof slides guide rail down, 4.11 be flashing board, the 4.12nd, last roof slides guide rail, and the 4.13rd, U type shelves bar, 4.14 be a grade rain plate, 8.1 be corner post, the 8.2nd, newel post, the 8.3rd, cross band, 8.4 be camber beam, 8.5 be end plate, the 8.6th, rainproof rubber strip, the 8.7th, drainage channel, 9.1 be that active rotating shaft is formed, 9.2 be pull bar, the 9.3rd, driven spindle is formed, and the 9.4th, driven axle bed, 9.5 be spring spacer bar, 9.6 be latch hook, the 9.7th, active axle bed, the 9.8th, operating handle, 10.1 be handspike bearing, 10.2 be that the roof internal lock closes device down, 10.2.1 is the gib head screw rod, 10.2.2 is a mount pad, 10.2.3 be jam nut, 10.3 be roof hoard, the 10.4th, roller, the 10.5th, vertical inhibiting device, 10.6 be roof cant rail, 10.7 be carline, the 10.8th, side direction roller, 10.9 locks, 10.10 roof rain-proof rubber strip under being, 10.11 roof rain-proof rubber strip under being, the 10.12nd, manger, the 10.13rd, push rod, 10.14 be bearing pin,, the 11.1st, handspike bearing, the 11.2nd, last roof internal lock closes device, 11.2.1 be the gib head screw rod, 11.3 be the cut ventilator, the 11.4th, roof hoard, the 11.5th, vertical inhibiting device, 11.6 be roof cant rail, 11.7 be carline, the 11.8th, lock, the 11.9th, last roof rain-proof rubber, 11.10 be to go up roof rain-proof rubber strip, the 12nd, goods locking device.
The specific embodiment
Embodiment 1.Form by car body, bogie truck 3, brake equipment 6 and coupler and draft gear 7 in conjunction with the slide roof wagon that Fig. 1 to Fig. 5 the utility model proposes.Their annexation is: car body is all steel welding skin stressed structure, falls to being placed on 2 bogie trucks 3; Brake equipment 6 is made up of air brake equipment and manual braking's device, and air brake equipment is arranged in the car body bottom, links to each other by the foundation brake rigging of round pin with bogie truck 3, and manual braking's device 6.1 is arranged in the car body two ends; Coupler and draft gear 7 is arranged in the position of car body two ends near the bottom.
The feature of vehicle keystone configuration is as follows:
Car body adopts all steel welding skin stressed structure, is made up of with locking device 12 etc. underframe 1, side wall 4, headwall 8, roof 10,11, car door 2,5, goods.
Upper and lower roof composition forms by assembly weldings such as roof cant rail 10.6,11.5, carline 10.7,11.7, roof hoard 10.3,11.4 and handspike bearings 10.1,11.1.Roof cant rail 10.6,11.5 of the present utility model is a rectangular steel pipe; Carline 10.7,11.7 is circular arc angle steel or rectangular steel pipe, is arranged in roof hoard 10.3,11.4 inboards; Roof hoard 10.3,11.4 is a TCS type stainless steel sheet.The roof inwall is adorned lining PEF polyethylene foam sheet successively and is removed from office MDF again.Each roof below is respectively equipped with six rollers 10.4, and roller 10.4 has one-sided flange, plays guiding and restriction roof cross travel.Roller 10.4 getaways 4.10,4.12 when preventing that roof from sliding, following roof 10 bottoms and go up roof 11 outsides and be equipped with six vertical inhibiting device 10.5,11.5, vertical inhibiting device 10.5,11.5 is installed on the roof by bolt.Following roof 10 is provided with six side direction rollers 10.8, the cross travel when being in the locking position to limit down roof 10.Last roof 11 tops are provided with three cut ventilators 11.3.
Roof vertically adopts two-layer rain-proof structure, is provided with rainproof rubber strip 10.10,10.11,11.9,11.10 in the groove of the camber beam 10.7,11.7 at upper and lower roof two ends, and headwall 8 upper inside wall also are provided with rainproof rubber strip 8.6.Vertically behind the locking roof, steel structure on roof 10,11 and the headwall 8 will push above-mentioned rainproof rubber strip, make it to take place elastic deformation, fill up roof steel structure and headwall 8 steel structures, the longitudinal slot between the upper and lower roof steel structure, form the rainproof layer of twice, water-resistant performance is reliable.In addition, be provided with drainage channel 8.7, lean on an end of car body line of centers that manger 10.12 is set at following roof 10 at headwall 8 inwalls, the rainwater that rainproof rubber strip place can be infiltrated is discharged outside the car.
In general roof, can use existing locking device, as long as can roof is fixing.
Push rod device adopts 2 detouchable push rods 10.13 to handle roof and slides.During operation, use the bearing pin 10.14 with the car configuration push rod 10.13 to be connected respectively on 2 handspike bearings of roof one end, the people stands in go-cart top, ground and slides.Push rod 10.13 must be unloaded, puts into the car internal fixation behind the locking roof.
Adopting changes K6 type bogie truck 3, and its suspension adopts the one-level spring stiffness, the outer coil spring of coil spring and spring cushion cap central authorities in the cancellation all.
Air brake equipment 6 satisfies the requirement of main pipe pressure 500kPa and 600kPa, comprise 120 type control cock, empty wagon safety valve, spinning sealed type brake cylinder, the embedded storage reservoir of corrosion-resistant steel, the two-way hem shoe gap automatic regulator of improved ST2-250 type, automatic braking equipment at time of derailment of wagons, braiding brake hose assembly, corrosion-resistant steel ball type angle cock and compound type dirt collector, stainless steel composite pipe and supporting flange, accessories such as composite brake shoe with great friction coefficient, Ao-Bei magnesium iron lining, E RunddichtringO, nylon pipe clamp pad and retaining spring cotter.
Coupler and draft gear 7 adopts E level steel 17 type hitches, thickening type hook tongue, supporting employing 17 type forging hook tail frames, alloy steel draft key.Adopt oil-containing nylon lock hook tail frame supporting plate wearing plate, anti-jump latch, have the draught gear supporting seat backstop iron of anti-theft feature, backstop iron adopts pulling rivet to be connected with striker.Adopt HN-1 type or HM-1 type energy disperser.
Assembling process is: the steel structure with underframe 1, side wall 4 and headwall 8 is welded into skin stressed structure earlier, lay the floor 1.3 on the underframe 1 then, car door, roof and locking mechanism thereof, coupler and draft gear 7 are installed, brake equipment 6 and bogie truck 3 wait other parts, carry out the vehicle oil paint coating at last.
Embodiment 2.In conjunction with Fig. 1 to Fig. 8, identical with embodiment 1, this example has been installed different locking devices.This routine roof has adopted novel inside and outside associating locking mode.Adopt 4 put locking device 11.2 in the roof realize going up the vertical locking of roof 11, adopt 4 covers down the roof internal lock close device 10.2 and realize the vertical locking of roof 10 down.Locking device 10.2,11.2 is installed in side wall 4 inwalls in the roof, mainly form, by fastening jam nut 10.2.3, make gib head screw rod 10.2.1,11.2.1 compress lock 10.8,11.9 on the roof, realize locking by gib head screw rod 10.2.1,11.2.1, mount pad 10.2.2 and jam nut 10.2.3.
Locking mechanism 9 is realized vertical locking of upper and lower roof 10,11 respectively outside the employing 2 cover ends, and this mechanism is located at headwall 8 outsides.Comprise active rotating shaft composition 9.1, pull bar 9.2, driven spindle composition 9.3, axle bed 9.7, axle bed 9.4, strut 9.5, postive stop baffle and safety catch; Wherein: active rotating shaft is formed 9.1 and is provided with operating handle 9.8, and driven spindle 9.3 two ends are provided with the latch hook 9.6 that has locking effect; By active rotating shaft form 9.1, pull bar 9.2, driven spindle form 9.3 and headwall 8 constitute a four-bar linkage that the motion dead point is arranged, after this device is closed, pull bar 9.2 will be crossed the dead point of mechanism, the locking counter-force makes active rotating shaft 9.1 rotate toward the locking direction, and safety catch will hook handle, prevent that active rotating shaft 9.1 is loosening; The strut 9.5 that employing has elastic pressure makes device can remain on open position, the stroke of postive stop baffle restriction push rod when device is opened; Device is provided with jam plate and uses for locking device.
Claims (10)
1. slide roof wagon, comprise car body, brake equipment (6), coupler and draft gear (7) and bogie truck (3), wherein, car body mainly comprises underframe (1), side wall (4), headwall (8), last roof (11), following roof (10), car door (2,5), goods locking device (12) etc.; It is characterized in that: car body has adopted the formula slide roof structure that staggers, and roof bottom is provided with roller (10.4), can be along the guide rail be arranged in side wall top chord (4.8) outside (4.10,4.12) slip, the roof loading hatch along car body longitudinally aperture be not less than 10m.
2. slide roof wagon according to claim 1, it is characterized in that: the described formula slide roof structure that staggers is to go up roof (11) to be arranged in down roof (10) top, last roof (11) is shorter than following roof (10), and there is vertical inhibiting device (10.5,11.5) each roof below.
3. slide roof wagon according to claim 1 and 2 is characterized in that: the described formula slide roof structure that staggers comprises the slip rain insensitive device that is installed under the roof (10,11) and is installed in vertical rain insensitive device in headwall (8) and the roof (10,11).
4. slide roof wagon according to claim 3 is characterized in that: the described formula slide roof structure that staggers also comprises the outer locking device that is installed in headwall (8) outside.
5. slide roof wagon according to claim 3, it is characterized in that: described roof slip rain insensitive device comprises the top chord (4.8) that is positioned at side wall (4) top, guide rail (4.10,4.12), stay bearing plate (4.9), roller (10.4), goes up roof (11), roof (10) down, wherein top chord (4.8) outside welding successively under roof (10) guide rail (4.10), the rail support plate (4.9) that slide and keep supplying the guide rail (4.12) that roof (11) slides; Last roof (11) is installed roller (10.4) and is slided at guide rail (4.12); Following roof (10) is installed roller (10.4) and is slided at guide rail (4.10); In guide rail (4.10,4.12) bottom flashing board (4.11) is arranged, weather shield (4.14) is arranged in the top of top chord (4.8).
6. slide roof wagon according to claim 3, it is characterized in that: described vertical rain insensitive device is provided with rainproof rubber strip (10.10,10.11,11.9,11.10) in the groove of the camber beam (10.7,11.7) at upper and lower roof two ends, headwall (8) upper inside wall also is provided with rainproof rubber strip (8.6); Be provided with drainage channel (8.7) at headwall (8) inwall; Lean on an end of car body line of centers that manger (10.12) is set at following roof (10).
7. slide roof wagon according to claim 4 is characterized in that: the described formula slide roof structure that staggers also comprises the interior locking device (10.2,11.2) that is installed in side wall (4).
8. slide roof wagon according to claim 4 is characterized in that: the described formula slide roof structure that staggers also comprises the push rod device that is installed in side wall (4) and roof (10,11) detachable.
9. slide roof wagon according to claim 4, it is characterized in that: described outer locking device comprises operating handle (9.8), active rotating shaft is formed (9.1), pull bar (9.2), driven spindle is formed (9.3), spring spacer bar (9.5), wherein active rotating shaft is formed (9.1) by active axle bed (9.7), driven spindle is formed (9.3) and is installed on the headwall (8) by driven axle bed (9.4), operating handle (9.8), active rotating shaft is formed (9.1), pull bar (9.2), driven spindle is formed (9.3) order and is is vertically connected and composed a four-bar linkage that the motion dead point is arranged, and driven spindle (9.3) two ends are provided with latch hook (9.6).
10. slide roof wagon according to claim 7, it is characterized in that: locking device comprises that the roof internal lock closes device (11.2) and following roof internal lock closes device (10.2) in described, and device comprises gib head screw rod (10.2.1,11.2.1), mount pad (10.2.2) and jam nut (10.2.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020143761XU CN201619576U (en) | 2010-03-29 | 2010-03-29 | Wagon with sliding roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020143761XU CN201619576U (en) | 2010-03-29 | 2010-03-29 | Wagon with sliding roof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201619576U true CN201619576U (en) | 2010-11-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020143761XU Expired - Lifetime CN201619576U (en) | 2010-03-29 | 2010-03-29 | Wagon with sliding roof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201619576U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823489A (en) * | 2010-03-29 | 2010-09-08 | 南车眉山车辆有限公司 | Slide roof wagon |
| CN104309621A (en) * | 2014-10-28 | 2015-01-28 | 南车石家庄车辆有限公司 | Inner plate mounting structure of boxcar |
| CN108313082A (en) * | 2018-04-04 | 2018-07-24 | 李理 | A kind of railway transportation coal car compartment safety and environmental protection cover board |
| CN109435997A (en) * | 2018-10-24 | 2019-03-08 | 中车太原机车车辆有限公司 | The collapsible railway freight-car removable top cover of big aperture |
| CN114572263A (en) * | 2022-03-30 | 2022-06-03 | 常州市新创智能科技有限公司 | Sliding top cover with inner plug, train carriage and top cover door opening method thereof |
-
2010
- 2010-03-29 CN CN201020143761XU patent/CN201619576U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823489A (en) * | 2010-03-29 | 2010-09-08 | 南车眉山车辆有限公司 | Slide roof wagon |
| CN101823489B (en) * | 2010-03-29 | 2011-09-28 | 南车眉山车辆有限公司 | Slide roof wagon |
| CN104309621A (en) * | 2014-10-28 | 2015-01-28 | 南车石家庄车辆有限公司 | Inner plate mounting structure of boxcar |
| CN104309621B (en) * | 2014-10-28 | 2017-06-20 | 中车石家庄车辆有限公司 | Board mounting structure in box car |
| CN108313082A (en) * | 2018-04-04 | 2018-07-24 | 李理 | A kind of railway transportation coal car compartment safety and environmental protection cover board |
| CN108313082B (en) * | 2018-04-04 | 2019-05-10 | 于法周 | A kind of railway transportation coal car compartment safety and environmental protection cover board |
| CN109435997A (en) * | 2018-10-24 | 2019-03-08 | 中车太原机车车辆有限公司 | The collapsible railway freight-car removable top cover of big aperture |
| CN114572263A (en) * | 2022-03-30 | 2022-06-03 | 常州市新创智能科技有限公司 | Sliding top cover with inner plug, train carriage and top cover door opening method thereof |
| CN114572263B (en) * | 2022-03-30 | 2022-09-20 | 常州市新创智能科技有限公司 | Sliding top cover with inner plug, train carriage and top cover door opening method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101103 Effective date of abandoning: 20110928 |