CN204322955U - Railway guide bridge structure - Google Patents
Railway guide bridge structure Download PDFInfo
- Publication number
- CN204322955U CN204322955U CN201420743142.2U CN201420743142U CN204322955U CN 204322955 U CN204322955 U CN 204322955U CN 201420743142 U CN201420743142 U CN 201420743142U CN 204322955 U CN204322955 U CN 204322955U
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- China
- Prior art keywords
- bridge structure
- slide block
- axle aggregate
- railway
- guide bridge
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- Withdrawn - After Issue
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Abstract
The utility model provides a kind of railway guide bridge structure, and supported slide block assembly by axle aggregate, slide block assembly is set up on the supporting seat of axle aggregate, and slippingly near and away from axle aggregate.Arrange between axle aggregate and slide block assembly simultaneously and push against with the two respectively and the shock absorption device strutted, shock absorption device is compressed when axle aggregate is given a shock, and slippage is near slide block assembly, thus damping is carried out to the vibrations that railway wheel is subject to, avoid producing derailing problem.The withdrawal action of axle aggregate is completed by traction link, upper connecting rod swing is driven by the actuating device be articulated and connected in the middle part of upper connecting rod, draw lower link action during upper connecting rod swing and then axle aggregate and slide block assembly are packed up, by bar linkage structure, axle aggregate is packed up, avoid the Integral swinging of railway guide bridge structure, decrease taking up room of railway guide bridge structure, be beneficial to the layout of complete vehicle structure.
Description
Technical field
The utility model relates to combined tractor truck technical field, more particularly, relates to a kind of railway guide bridge structure.
Background technology
Combined tractor truck is that namely one may be used for highway traction goods, and can draw again the industrial vehicle of goods on railway, vehicle needs the switching carrying out mode of operation when road and rail traction working condition converts.
Combined tractor truck is provided with four groups of bridges altogether, is highway steeraxle respectively, highway drive axle, railway supports bridge, railway guide bridge, highway steeraxle and drive axle is provided with road vehicle wheel, railway supports bridge and railway guide bridge are provided with railway wheel.
On highway during towage, railway supports bridge and railway guide bridge are packed up, and railway wheel departs from the certain height in ground, the wheel kiss the earth that highway steeraxle and drive axle are installed, and driving model is consistent with normal traction car; When needs are on railway during operation, supporting bridge and railway guide bridge decline, be arranged on railway wheel contact rail on railway supports bridge and support car body, making the wheel of highway steering wheel shaft depart from ground one segment distance, be arranged on wheel contact rail in railway guide bridge and keep certain positive pressure.
The lifting supporting mechanism of the railway guide bridge of existing combined tractor truck is oscillating type mechanism, takes up room comparatively large, be unfavorable for arrangement, limit overall dimensions of a car during institution staff.In addition, certain operation pressure is kept over the ground for making railway guide bridge, general oil cylinder withstands railway guide bridge bridge axle, consider the leakage problem of hydraulic efficiency pressure system, oil cylinder must work all the time, causes the waste of oil cylinder energy, and railway guide bridge is held out against by oil cylinder, be given a shock in process, the vibrations of railway guide bridge easily cause the derailing of railway wheel after takeofing.
Therefore, how improving the safety of combined tractor truck work structuring, is current those skilled in the art's problem demanding prompt solution.
Utility model content
In view of this, the utility model provides a kind of railway guide bridge structure, to realize the safety improving combined tractor truck work structuring.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of railway guide bridge structure, comprising:
Axle aggregate, the two ends of the axis of described axle aggregate are provided with railway wheel;
Slide block assembly, is set up on the supporting seat of described axle aggregate, and slippingly near and away from described axle aggregate;
Arrange between described axle aggregate and described slide block assembly and push against with the two respectively and the shock absorption device strutted;
Traction link, comprises be articulated and connected lower link on described slide block assembly and and the upper connecting rod that drive described lower link vertically swing hinged with described lower link;
Actuating device, is articulated and connected in the middle part of described upper connecting rod, and drives the actuating device of described upper connecting rod swing.
Preferably, in above-mentioned railway guide bridge structure, described slide block assembly is arranged the adapter plate supporting described shock absorption device, described adapter plate is extended with pilot sleeve along the support direction of described supporting seat, and described shock absorption device to be arranged in described pilot sleeve and to push against with described supporting seat.
Preferably, in above-mentioned railway guide bridge structure, described shock absorption device is be set in the damping spring in described pilot sleeve, and the top of described pilot sleeve is arranged supports friction tight spring block with the top of described damping spring.
Preferably, in above-mentioned railway guide bridge structure, the top of described pilot sleeve is also provided with and offsets with described spring block, and adjusts the adjusting bolt of described spring stop position along the axis of described pilot sleeve.
Preferably, in above-mentioned railway guide bridge structure, described slide block assembly comprises first fagging and the second frame fagging that frame supports described lower link, and installs the frame support seat of described first fagging and described second frame fagging, and described frame support seat is arranged at described lower link and swings the side of stretching out direction.
Preferably, in above-mentioned railway guide bridge structure, the connecting panel of fitting with described axle aggregate is also provided with between described first fagging and described second frame fagging, described connecting panel is arranged pinned connection hole, described axle aggregate offers and coordinates and the U-shaped hole vertically arranged with described pinned connection hole, between described pinned connection hole and described U-shaped hole, be set with slippage bearing pin.
Preferably, in above-mentioned railway guide bridge structure, described actuating device is the oil cylinder of piston rod and described upper rod hinge connection, and the cylinder body of described oil cylinder is hingedly connected with front permanent seat; The end of described upper connecting rod is hingedly connected with rear permanent seat.
Preferably, in above-mentioned railway guide bridge structure, also comprise vertically arrange and with described slide block assembly sliding block joint, to the slippage guide rail that the slippage vertically of described slide block assembly is led.
Preferably, in above-mentioned railway guide bridge structure, described railway guide bridge structure comprises the first railway guide bridge structure and the second railway guide bridge structure that the axis along described axle aggregate is arranged symmetrically with.
The railway guide bridge structure that the utility model provides, supported slide block assembly by axle aggregate, slide block assembly is set up on the supporting seat of axle aggregate, and slippingly near and away from axle aggregate.Arrange between axle aggregate and slide block assembly simultaneously and push against with the two respectively and the shock absorption device strutted, therefore when axle aggregate is given a shock, first axle aggregate compresses shock absorption device, and slippage is near slide block assembly, thus damping is carried out to the vibrations that railway wheel is subject to, avoid the vibrations of railway wheel to be applied directly on combined tractor truck and cause larger vibrations to produce derailing problem.Simultaneously, the withdrawal action of axle aggregate is completed by traction link, traction link is driven by the lower link be articulated and connected on slide block assembly and swings, hinged and the upper connecting rod of lower link is connected, upper connecting rod swing is driven by the actuating device be articulated and connected in the middle part of upper connecting rod, draw lower link action during upper connecting rod swing and then axle aggregate and slide block assembly are packed up, by bar linkage structure, axle aggregate is packed up, avoid the Integral swinging of railway guide bridge structure, decrease taking up room of railway guide bridge structure, be beneficial to the layout of complete vehicle structure.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The railway guide bridge structural representation that Fig. 1 provides for the utility model;
The structural representation of the open configuration of the railway guide bridge structure that Fig. 2 provides for the utility model;
The structural representation of the retracted state of the railway guide bridge structure that Fig. 3 provides for the utility model;
Fig. 4 is the structural representation of slide unit assembly in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As Figure 1-Figure 4, the railway guide bridge structural representation that provides for the utility model of Fig. 1; The structural representation of the open configuration of the railway guide bridge structure that Fig. 2 provides for the utility model; The structural representation of the retracted state of the railway guide bridge structure that Fig. 3 provides for the utility model; Fig. 4 is the structural representation of slide unit assembly in Fig. 1.
The utility model provides a kind of railway guide bridge structure, and supported by axle aggregate 2 pairs of slide block assemblies 4, slide block assembly 4 is set up on the supporting seat of axle aggregate 2, and slippingly near and away from axle aggregate 2.Arrange between axle aggregate 2 and slide block assembly 4 simultaneously and push against with the two respectively and the shock absorption device strutted, thus the frame that slide block assembly 4 floats is supportted the top of axle aggregate 2, therefore when axle aggregate 2 is given a shock, first axle aggregate 2 compresses shock absorption device, and slippage is near slide block assembly 4, thus damping is carried out to the vibrations that the railway wheel 1 at axle aggregate 2 two ends is subject to, avoid the vibrations of railway wheel 1 to be applied directly on combined tractor truck and cause larger vibrations to produce derailing problem.Simultaneously, the withdrawal action of axle aggregate 2 is completed by traction link, traction link drives swing by the lower link 11 be articulated and connected on slide block assembly 4, hinged and the upper connecting rod 9 of lower link 11 is connected, upper connecting rod 9 is driven to swing by the actuating device be articulated and connected in the middle part of upper connecting rod 9, draw lower link 11 action when upper connecting rod 9 swings and then axle aggregate 2 and slide block assembly 4 are packed up, by bar linkage structure, axle aggregate 2 is packed up, avoid the Integral swinging of railway guide bridge structure, decrease taking up room of railway guide bridge structure, be beneficial to the layout of complete vehicle structure.
For optimizing technique scheme further, slide block assembly 4 is arranged and supports the adapter plate 42 of shock absorption device, adapter plate 42 is extended with pilot sleeve 41 along the support direction of supporting seat, and shock absorption device to be arranged in pilot sleeve 41 and to push against with supporting seat.Slide block assembly 4 is led by the damping direction arranging the pilot sleeve 41 pairs of shock absorption devices on it, slide block assembly 3 is arranged adapter plate 42, pilot sleeve 41 is packed on adapter plate 42, shock absorption device is arranged between adapter plate 42 and supporting seat, and extend in pilot sleeve, the inwall of shock absorption device and pilot sleeve and the plate face of supporting seat push against, and are erected by axle aggregate 2 by slide block assembly 4, ensure that the vibrations that axle aggregate 2 is subject to are delivered on shock absorption device.Pilot sleeve 41 is along the support direction of supporting seat, and the support direction of supporting seat is the direction shaken when railway wheel 1 is given a shock, and is led, and provide stable shock-absorbing support by the damping direction of pilot sleeve to shock absorption device.
For optimizing technique scheme further, shock absorption device is the damping spring 3 be set in pilot sleeve 41, and the top of pilot sleeve 41 is arranged supports friction tight spring block 18 with the top of damping spring 3.By damping spring 3, slide block assembly 4 is propped up on axle aggregate 2, damping spring 3 is set in pilot sleeve, the accuracy in the damping direction of damping spring 3 is ensured by pilot sleeve 41, damping spring 3 stable structure is provided to support, the spring block 18 pushed against with the top of damping spring 3 is set at the top of pilot sleeve 41 simultaneously, by spring block 18, stable for damping spring 3 is supported in pilot sleeve, and improves the top braces intensity of pilot sleeve, ensure equipment application security.
For optimizing technique scheme further, the top of pilot sleeve 41 is also provided with and offsets with spring block 18, and along pilot sleeve 41 axis adjustment spring block 18 position adjusting bolt 17.As in Fig. 1, pilot sleeve transparent processing outside damping spring 3, to show its inner structure, the two ends in damping spring 3 elastic force direction offset with the spring block 18 in the supporting seat of axle aggregate 2 and pilot sleeve 4 respectively, by arranging adjusting bolt 17 at the top of pilot sleeve 41, by the axial slip of adjusting bolt 17 regulating spring block 18 along pilot sleeve 41, thus the amount of compression of adjustment damping spring 3 between axle aggregate 2 and slide block assembly 4, to adjust the predetermincd tension of damping spring 3, and then can adjust the cushioning ability of public iron railway bridge structure.Damping spring 3 is two groups, and the front and back along combined tractor truck are arranged, to provide the stable support of axle aggregate 2.
As shown in Figure 4, Fig. 4 is the structural representation of slide unit assembly in Fig. 1.
For optimizing technique scheme further, slide block assembly 4 comprises first fagging 43 and the second frame fagging 44 of frame support lower link 11, and the frame support seat 45 of first fagging 43 and the second frame fagging 44 is installed, frame support seat 45 is arranged at lower link 11 and swings the side of stretching out direction.Lower link 11 is hinged with slide block assembly 4, by driving swing band movable slider assembly 4 the erecting at vertical direction of lower link 11, slide block assembly 4 is arranged first fagging 43 and the second frame fagging 44, lower link 11 is rotationally connected with between first fagging 43 and the second frame fagging 44, provides the rotational support structure to lower link 11.Packing up axle aggregate 2 or putting down is realized with movable slider assembly 4 action in lower link 11 rotation process, after axle aggregate 2 puts down, the application force that railway wheel 1 is subject to conducts to lower link 11, rotate backward excessively after lower link 11 is impacted, in the side that lower link 11 swaying direction stretches out, namely rotate the side of axle aggregate 2 being put down direction and frame support seat 45 is set, frame support seat 45 1 aspect provides the stable support of first fagging 43 and the second frame fagging 44, provides the rotation of lower link 11 to protect simultaneously.
For optimizing technique scheme further, the connecting panel 46 of fitting with axle aggregate 2 is also provided with between first fagging 43 and the second frame fagging 44, connecting panel 46 is arranged pinned connection hole 47, axle aggregate 4 offers and coordinates and the U-shaped hole vertically arranged with pinned connection hole 47, between pinned connection hole 47 and U-shaped hole, be set with slippage bearing pin 15.Slide block assembly 4 is connected with axle aggregate 2 by the connecting panel 46 between first fagging 43 and the second frame fagging 44, connecting panel 47 and axle aggregate 2 are fitted, it is arranged pinned connection hole 47, the correspondence position of axle aggregate 2 arranges U-shaped hole, connecting panel 46 and axle aggregate 2 is connected by slippage bearing pin 15, axle aggregate 2 arranges U-shaped hole, make to slide along the length direction in U-shaped hole between axle aggregate 2 and slide block assembly 4, particularly, axle aggregate 2 makes it along U-shaped hole length direction slippage by self gravitation, be separated with slide block assembly 4, when axle aggregate 4 is with rail supported, axle aggregate 2 and slide block assembly 4 slippage close, simultaneously, the work stall distance that the two ensures safety is promoted by damping spring 3.
For optimizing technique scheme further, actuating device is the hinged oil cylinder 16 of piston rod and upper connecting rod 9, the cylinder body of oil cylinder 16 is hingedly connected with front permanent seat 13; The end of upper connecting rod 9 is hingedly connected with rear permanent seat 6.Actuating device is oil cylinder 16, the piston rod of oil cylinder 16 and the middle part of upper connecting rod 9 hinged, adjust piston rod by oil cylinder 16 and stretch out or regain, in drive, connecting rod 9 and lower link 11 are regained or launch, axle aggregate 2 is packed up by withdrawal process, and axle aggregate 2 puts down and offsets with track by expansion process.The cylinder body of oil cylinder 16 arranges front permanent seat 13 and hinged with it, and the end of upper connecting rod 9 arranges rear permanent seat 6 and hinged with it, and front permanent seat 13 and rear permanent seat 6 realize the connection of the vehicle frame of railway guide bridge structure and combined tractor truck.
For optimizing technique scheme further, also comprise vertically arrange and with slide block assembly 4 sliding block joint, to the slippage guide rail 5 that slide block assembly 4 slippage is vertically led.Movable slider assembly about 4 slippage is with in lower link 11 rotation process, the slippage guide rail 5 led to the slippage of slide block assembly 4 is set, slide block assembly 4 is installed on slippage guide rail 5, led by the operative orientation of slippage guide rail 5 pairs of axle aggregates 2 on the one hand, carry out frame support by slippage guide rail 5 pairs of slide block assemblies 4 simultaneously, ensure the stability of slide block assembly 4 supporting construction.
Upper connecting rod 9 is rotationally connected by the first bearing pin 8 with rear permanent seat 6, and it is hinged that the middle part of upper connecting rod 9 and the piston rod of oil cylinder 16 pass through the second bearing pin 10, when ensureing that oil cylinder 16 pulls connecting rod 9 to rotate, and the break-in in piston rod withdrawal process.Cylinder body and the front permanent seat 13 of oil cylinder 16 are hinged by the 3rd bearing pin 14, the same rotation ensureing position in oil cylinder 16 working process.Hinged by the 4th bearing pin 12 between upper connecting rod 9 and lower link 11, hinged by the 5th bearing pin 7 between lower link 11 and slide assembly 2, by pin shaft structure, ensure that the bar linkage structure be made up of oil cylinder 16, upper connecting rod 9 and lower link 11 completes the traction work to slide assembly.
The railway guide bridge structure that the present embodiment provides has packs up and puts down axle aggregate two kinds of operating modes, as shown in Figure 2, when combined tractor truck is on railway during operation, conversion operations pattern is rail traction, hydraulic efficiency pressure system is to the rodless cavity fuel feeding of hydraulic ram 16, and the piston rod of hydraulic ram 16 stretches out, and in promotion, connecting rod 9 rotates clockwise around the first bearing pin 8 of its support end, upper connecting rod 9 is with movable slider assembly 4 vertically to move down along slippage guide rail 5 by lower link 11, and railway wheel 1 contacts rail.Due to railway wheel 1 contact rail after cannot continue to move down, piston rod along with oil cylinder 16 continues outside pushing tow, and upper connecting rod 9 continues to move down along slippage guide rail 5 with movable slider assembly 4 by lower link 11 makes slide block assembly 4 press down damping spring 3 until the slider-crank mechanism that railway bridge is made up of upper connecting rod 9, lower link 11 and slide block assembly 4 is opened completely.
The process that slide block assembly 4 presses down damping spring 3 makes damping spring 3 compressive deformation store more elastic potential energy on the one hand, second makes railway wheel 1 pair of ground produce certain counteractive support power but be unlikely to lift Vehicle Highway wheel, 3rd is the centre making slippage bearing pin 15 be in the U-shaped hole in axle aggregate 2, damping spring 3 is in vacant state, when vehicle is through uneven road surface, elasticity restitution due to damping spring 3 makes railway wheel 1 contact with rail all the time and keep certain pressure, prevents railway wheel 1 from derailing.
As shown in Figure 3, when combined tractor truck is on highway during operation, conversion operations pattern is highway traction, hydraulic efficiency pressure system is to the rod chamber fuel feeding of hydraulic ram 16, the piston rod of hydraulic ram 16 reclaims, and pull connecting rod 9 to rotate counterclockwise around the first bearing pin 8, upper connecting rod 9 is moved along in the guiding of slippage guide rail 5 with movable slider assembly 4 by lower link 11, slider-crank mechanism is regained, and railway wheel departs from rail.
The railway guide bridge structure that the present embodiment provides, is carried out the vertical lift of slide block assembly 4 and axle aggregate 2, has the little advantage that takes up room by slippage guide rail.By arranging the floating connecting structure that slide block assembly 4 and axle aggregate 2 are supported by damping spring 3 therebetween, vehicle operation railway wheel when uneven road surface is kept in touch with rail always, little to the car body vibrations of combined tractor truck, car body steering capability is good, reliable operation, not easily derail, solve the problem that railway wheel 1 easily derails.
By the slider-crank mechanism that upper connecting rod 9 and lower link 11 slide on slippage guide rail 5 with movable slider assembly 4, under upper connecting rod 9 and lower link 11 full open position, railway guide bridge arrangement works is at the latching point of slider-crank mechanism, support reliability is high, oil cylinder does not need to work always, achieves energy-conservation object.And opened by connecting rod in hydraulic oil cylinder driving 9 and lower link 11, in the two opening procedure, railway wheel axle assembly 2 drop to decelerated movement, and by adjusting the amount of compression of retarding spring 3, amount of spring compression is adjustable, can more intuitively simply adjust cushioning ability, when the hub contacts rail of railway wheel 1, little to the impulsive force of car body, the traveling comfort of driving is good.
For optimizing technique scheme further, railway guide bridge structure comprises the first railway guide bridge structure and the second railway guide bridge structure that the axis along axle aggregate is arranged symmetrically with.Railway guide bridge vibrational power flow is two that are arranged symmetrically in axle aggregate axis, is drawn and supports the two ends of axle aggregate axis by the first railway guide frame and the second railway guide frame respectively, improves the working stability of railway guide bridge structure.
In this specification sheets, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a railway guide bridge structure, is characterized in that, comprising:
Axle aggregate, the two ends of the axis of described axle aggregate are provided with railway wheel;
Slide block assembly, is set up on the supporting seat of described axle aggregate, and slippingly near and away from described axle aggregate;
Arrange between described axle aggregate and described slide block assembly and push against with the two respectively and the shock absorption device strutted;
Traction link, comprises be articulated and connected lower link on described slide block assembly and and the upper connecting rod that drive described lower link vertically swing hinged with described lower link;
Actuating device, is articulated and connected in the middle part of described upper connecting rod, and drives the actuating device of described upper connecting rod swing.
2. railway guide bridge structure according to claim 1, it is characterized in that, described slide block assembly is arranged the adapter plate supporting described shock absorption device, described adapter plate is extended with pilot sleeve along the support direction of described supporting seat, and described shock absorption device to be arranged in described pilot sleeve and to push against with described supporting seat.
3. railway guide bridge structure according to claim 2, is characterized in that, described shock absorption device is be set in the damping spring in described pilot sleeve, and the top of described pilot sleeve is arranged supports friction tight spring block with the top of described damping spring.
4. railway guide bridge structure according to claim 3, is characterized in that, the top of described pilot sleeve is also provided with and offsets with described spring block, and adjusts the adjusting bolt of described spring stop position along the axis of described pilot sleeve.
5. railway guide bridge structure according to claim 1, it is characterized in that, described slide block assembly comprises first fagging and the second frame fagging that frame supports described lower link, and the frame support seat of described first fagging and the second frame fagging is installed, described frame support seat is arranged at described lower link and swings the side of stretching out direction.
6. railway guide bridge structure according to claim 5, it is characterized in that, the connecting panel of fitting with described axle aggregate is also provided with between described first fagging and the second frame fagging, described connecting panel is arranged pinned connection hole, described axle aggregate offers and coordinates and the U-shaped hole vertically arranged with described pinned connection hole, between described pinned connection hole and described U-shaped hole, be set with slippage bearing pin.
7. railway guide bridge structure according to claim 1, is characterized in that, described actuating device is the oil cylinder of piston rod and described upper rod hinge connection, and the cylinder body of described oil cylinder is hingedly connected with front permanent seat; The end of described upper connecting rod is hingedly connected with rear permanent seat.
8. railway guide bridge structure according to claim 1, is characterized in that, also comprise vertically arrange and with described slide block assembly sliding block joint, to the slippage guide rail that the slippage vertically of described slide block assembly is led.
9. the railway guide bridge structure according to any one of claim 1-8, is characterized in that, described railway guide bridge structure comprises the first railway guide bridge structure and the second railway guide bridge structure that the axis along described axle aggregate is arranged symmetrically with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743142.2U CN204322955U (en) | 2014-12-01 | 2014-12-01 | Railway guide bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743142.2U CN204322955U (en) | 2014-12-01 | 2014-12-01 | Railway guide bridge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204322955U true CN204322955U (en) | 2015-05-13 |
Family
ID=53159347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420743142.2U Withdrawn - After Issue CN204322955U (en) | 2014-12-01 | 2014-12-01 | Railway guide bridge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204322955U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442246A (en) * | 2014-12-01 | 2015-03-25 | 衡阳合力工业车辆有限公司 | Railway guiding bridge structure |
-
2014
- 2014-12-01 CN CN201420743142.2U patent/CN204322955U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442246A (en) * | 2014-12-01 | 2015-03-25 | 衡阳合力工业车辆有限公司 | Railway guiding bridge structure |
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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: 20150513 Effective date of abandoning: 20160824 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |