CN205971348U - Rail vehicle bogie horizontal beam anticreep device and rail vehicle - Google Patents
Rail vehicle bogie horizontal beam anticreep device and rail vehicle Download PDFInfo
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- CN205971348U CN205971348U CN201620565853.4U CN201620565853U CN205971348U CN 205971348 U CN205971348 U CN 205971348U CN 201620565853 U CN201620565853 U CN 201620565853U CN 205971348 U CN205971348 U CN 205971348U
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- horizontal beam
- connecting hole
- rail vehicle
- fake
- drop device
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Abstract
The utility model relates to a rail vehicle bogie horizontal beam anticreep device and rail vehicle, including last installation component and lower installation component, it fixes on the automobile body to go up installation component, installation component fixes on the horizontal beam down, go up installation component and be connected through a O shape fake between the installation component down. The utility model discloses being connected through flexible O type fake between automobile body and horizontal beam, not only can avoiding horizontal beam fracture under very abominable operating mode and lead to vehicle derailment to topple, guarantee vehicle operation's security, simple structure simultaneously can be applicable to the motorcycle type of difference, and the commonality is stronger.
Description
Technical field
This utility model is related to a kind of rail vehicle, particularly to a kind of rail vehicle truck horizontal beam anti-drop device,
Belong to rail vehicle manufacturing technology field.
Background technology
On the rail vehicles such as subway, rim lubricating device, troubleshooting plate, response antenna all can be provided with bogie
Deng, current rail vehicle, the adnexa such as wheel rim lubricating arrangement, troubleshooting plate, response antenna is fixed on by mounting seat respectively and turns
To on frame.Consider the situation of vehicle handling capacity of passengers increasingly increase, in order to make full use of existing resource, meet car operation requirement, with
When meet the technical requirements of " big handling capacity of passengers, soon rise and stop soon, quick boarding ", Chinese special in Patent No. 201520874390.5
In sharp " a kind of rail vehicle horizontal beam mounting structure ", the equipment such as rim lubricating device, troubleshooting plate, response antenna are installed in place
On the horizontal beam of bogie frame end.Due to more equipment being carried on horizontal beam so as to overall weight is excessive, work as car
Long-time may result in horizontal beam breaking releasing when running under exceedingly odious operating mode, there is the safe thing that derailing is toppled
Therefore.
The structures such as the commonly used anticreep plate of existing erecting by overhang, steel wire rope, chain, wherein, anticreep plate needs to take relatively
Big installing space, requires to installation site higher, is not suitable for existing car is transformed, and when adopting steel wire rope or chain, by
There is relative motion between car body and horizontal beam it is therefore desirable to steel wire rope or chain have considerably long surplus, now, in some shapes
Under state, steel wire rope or chain will sagging and touch horizontal beam so that horizontal beam abrasion and there is corrosion, result even in fracture
Accident occur.
Utility model content
This utility model main purpose is to solve the above problems and not enough, provides a kind of structure simple it is ensured that being
So that horizontal beam is ruptured and also can ensure the rail vehicle truck horizontal beam anti-drop device of traffic safety.
Another main purpose of the present utility model is, provides a kind of track being provided with above-mentioned horizontal beam anti-drop device
Vehicle.
For achieving the above object, the technical solution of the utility model is：
A kind of rail vehicle truck horizontal beam anti-drop device, including upper mounting assembly and lower mounting assembly, described upper peace
Arrangement is fixed on car body, and described lower mounting assembly is fixed on horizontal beam, described upper mounting assembly and lower mounting assembly it
Between connected by flexible connecting member.
Further, described flexible connecting member is O shape fake, mounting assembly on described has on connecting hole, described
Lower connecting hole is had on lower mounting assembly, described O shape fake passes through described upper connecting hole and lower connecting hole to connect.
Further, described lower mounting assembly includes lower mounting seat and U bolt, the two ends of described U bolt and lower installation
Seat be fixedly connected, described horizontal beam is supporting in described U bolt and lower mounting seat, described lower mounting seat upper table towards
Protrude above a connecting seat, connecting seat is provided for the lower connecting hole through described O shape fake.
Further, described upper mounting assembly includes T-shaped upper mounting seat, arranges on the vertical component effect of described upper mounting seat
For the upper connecting hole through described O shape fake.
Further, described O shape fake passes through seam by a rope again through after described upper connecting hole and lower connecting hole
It is knitted to form as complete fake structure.
Further, on described, connecting hole and lower connection in the hole cover a solid nylon jacket respectively, and described nylon jacket has center
Through hole, described O shape fake passes through described central through hole.
Further, narrow waist-drum-shaped between described nylon jacket generally two ends alleviating distention in middle-JIAO, the wide part in two ends is stuck in connecting hole
At the outer ledge of lower connecting hole.
Further, described nylon jacket be after connecting hole and lower connecting hole in insertion reheating molded realize installing fix.
Another technical scheme of the present utility model is：
A kind of rail vehicle, including car body and bogie, is provided with horizontal beam in the end of described bogie, in described car
Horizontal beam anti-drop device as above is installed between body and horizontal beam.
To sum up content, a kind of rail vehicle truck horizontal beam anti-drop device described in the utility model and rail vehicle,
Compared with prior art, have the advantage that：
(1) this utility model is connected by flexible O-shaped fake between car body and horizontal beam, not only can avoid level
Beam ruptures under very severe operating mode and leads to vehicle derailing to topple it is ensured that the safety of vehicle operation, and structure is simple simultaneously, peace
Assembly and disassembly are unloaded very convenient it is also possible to be applied to different vehicles, and versatility is stronger.
(2) this utility model utilizes O-shaped fake to connect upper mounting assembly and lower mounting assembly, not only can be by changing
The girth of O-shaped fake to adapt to the installation site of different horizontal beams and car body, and, when vehicle by curve, track surpass
High and empty spring compression or the car body leading to and the horizontal beam such as overcharge relative motion when, the structure of O-shaped fake can effectively be kept away
Exempt from along with internal stress produced by relative motion between car body and horizontal beam, and then improve the overall support energy of anti-drop device
Power, improves its service life.
(3) this utility model adopts O-shaped fake, will not touch horizontal beam, enter without to water in vehicle operation
Flat-topped ridge causes wear damage, it is to avoid the phenomenon such as occurred level beam corrosion.
(4) this utility model is fixedly connected with U bolt by lower mounting seat, and by horizontal beam support lower mounting seat with
The inside of U bolt, not only can ensure that the support ability of anti-drop device, and structure is simple, and installation and removal are very convenient
Brief description
Fig. 1 is this utility model rail vehicle structure schematic diagram；
Fig. 2 is the top view of this utility model rail vehicle truck structure；
Fig. 3 is the side view of this utility model rail vehicle structure；
Fig. 4 is the structural representation of this utility model anti-drop device；
Fig. 5 is the lateral view of Fig. 4；
Fig. 6 is this utility model upper mounting seat structural representation；
Fig. 7 is this utility model lower mounting seat structural representation；
Fig. 8 is the lateral view of Fig. 7；
Fig. 9 is the structural representation after this utility model lower mounting seat is set with protective case；
Figure 10 is the top view of Fig. 9；
Figure 11 is this utility model nylon jacket structural representation.
As shown in Figure 1 to 11, car body 1, bogie 2, framework 3, curb girder 3a, crossbeam 3b, wheel to 4, horizontal beam 5, level
Beam mounting seat 6, troubleshooting plate 7, transponder antenna 8, horizontal beam anti-drop device 9, draw beam 10, upper mounting assembly 11, lower installation group
Part 12, flexible connecting member 13, O shape fake 14, upper mounting seat 15, upper connecting hole 16, installing plate 17, bolt 18, lower mounting seat 19,
U bolt 20, connecting seat 21, lower connecting hole 22, lower installing hole 23, external screw thread 24, nut 25, arcuate structure 26, protective case 27,
Split pin 28, nylon jacket 29, central through hole 30, upper installing hole 31, protective case 32, it is set with opening 33.
Specific embodiment
With specific embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1 to Figure 3, a kind of rail vehicle, including car body 1 and bogie 2, bogie 2 includes framework 3, takes turns to 4
Deng framework 3 is made up of curb girder 3a and crossbeam 3b, is provided with horizontal beam 5 in the end of two curb girder 3a of framework 3, horizontal beam 5
End is fixed on the end of curb girder 3a by horizontal beam mounting seat 6.
Horizontal beam mounting seat 6 is left and right two pieces, and two horizontal beam mounting seats 6 are symmetrical with regard to bogie longitudinal center plane
Setting, the equipment such as wheel rim lubricating arrangement (not shown), troubleshooting plate 7, transponder antenna 8 is all fixedly mounted on horizontal beam 5
On, transponder antenna 8 is arranged on the centre of horizontal beam 5, and troubleshooting plate 7 is two and is symmetrically mounted on the both sides of transponder antenna 8.
Horizontal beam anti-drop device 9 is installed between car body 1 and horizontal beam 5, ruptures under very severe operating mode for horizontal beam 5
When, can support live horizontal beam 5, it is to avoid occur vehicle derailing capsizing case it is ensured that vehicle run safety.
As shown in Figure 1 to Figure 3, one end of horizontal beam anti-drop device 9 is fixedly connected with horizontal beam 5, the other end and car body 1 end
The draw beam 10 in portion is fixedly connected, and according to installation site, may be mounted on the base plate of draw beam 10 it is also possible to be arranged on traction
On the side plate of beam 10.Two groups of horizontal beam anti-drop devices 9 are installed between a horizontal beam 5 and car body 1, are separately mounted to transponder
Between the troubleshooting plate 7 of antenna 8 and both sides, to ensure the whole machine balancing of horizontal beam 5 it is ensured that traffic safety.
As shown in Figure 4 and Figure 5, every group of horizontal beam anti-drop device 9 all includes mounting assembly 11 and lower mounting assembly 12,
It is connected by flexible connecting member 13 between upper mounting assembly 11 and lower mounting assembly 12, wherein go up mounting assembly 11 and be fixed on car body
On 1, lower mounting assembly 12 is fixed on horizontal beam 5.
In the present embodiment, flexible connecting member 13 preferably employs an O shape fake 14, in order to ensure the ability of its support, O shape
Fake 14 preferably employs the thick steel wire rope loop of φ 9mm.
As shown in Figure 6 and Figure 7, upper mounting assembly 11 includes T-shaped upper mounting seat 15, and upper mounting seat 15 adopts rustless steel
Integrated formed structure, is provided for the upper connecting hole 16 through O shape fake 14, in upper peace on the vertical component of upper mounting seat 15
It is provided with two upper installing holes 31 on the horizontal component of dress seat 15.As shown in figures 1 and 3, two in upper mounting seat 15 are upper pacifies
Dress hole 31 is fixedly connected with the draw beam 10 of car body 1 by a bolt 18 respectively, corresponds to and install on each on draw beam 10
Hole 31 fixedly mounts one piece of installing plate 17, and installing plate 17 can be U-shaped structure or L-shaped structure, and installing plate 17 can weld
Connect on the base plate being fixed on draw beam 10 or side plate it is also possible to be bolted on base plate or the side plate of draw beam 10.
As shown in Figure 4 and Figure 5, lower mounting assembly 12 includes lower mounting seat 19 and U bolt 20, as shown in Figure 7 and Figure 8,
Lower mounting seat 19 is also in substantially inverted T-shaped structure, vertically protrudes a connecting seat 21 upwards in the upper surface of lower mounting seat 19,
Connecting seat 21 and lower mounting seat 19 are integrally formed using stainless steel material, connecting seat 21 are provided for through O shape fake 14
Lower connecting hole 22, is provided with two lower installing holes 23 on the horizontal component of lower mounting seat 19, and two tops of U bolt 20 are each
There is external screw thread 24, two tops of U bolt 20 pass through two lower installing holes 23 in lower mounting seat 19, twist by nut 25
Fasten, and then U bolt 20 be fixed together with lower mounting seat 19, horizontal beam 5 be supporting at U bolt 20 and under
In the space that mounting seat 19 surrounds.Two top ends of U bolt 20 respectively have a cotter-pin hold, above each nut 25
Cotter-pin hold at a split pin 28 is installed, be used for preventing vehicle long-play back nut 25 loose or dislocation.Lower installation
The structure of assembly 12 not only can ensure that the support ability of anti-drop device, and structure is simple, and installation and removal are very convenient.
Because horizontal beam 5 is tube-shaped structure, the surface being contacted with horizontal beam 5 in the lower surface of lower mounting seat 19 is set
Count into an arcuate structure 26, arcuate structure 26 is adapted with the outer circumference surface of horizontal beam 5, by the design of arcuate structure 26 with adopt
With U bolt 20, increased the contact area between lower mounting assembly 12 and horizontal beam 5, and then lower installation group is greatly improved
The overall support ability of part 12 is it is also possible to increase lower frictional force between mounting assembly 12 and horizontal beam 5, it is to avoid run in vehicle
During, lower mounting assembly 12 is along horizontal beam 5 vibration.
In order to avoid in vehicle operation, U bolt 20 causes to horizontal beam 5 to wear and tear, in the periphery of U bolt 20
Be cased with one layer of Silicone Case 27, horizontal beam 5 by pad on protective case 27, due to protective case 27 adopt silica gel material it is also possible to
Improve docile performance between U bolt 20 and horizontal beam 5 and frictional force further it is ensured that the installation of horizontal beam anti-drop device 9
Position is relatively-stationary in vehicle operation.
As shown in Figure 9 and Figure 10, protective case 32, the shape of protective case 32 and lower installation are also set with lower mounting seat 19
The mating shapes of seat 19, protective case 32 is overall to be close to be sleeved in lower mounting seat 19, has on the upper surface of protective case 32
For the suit opening 33 of suit, suit opening 33 is in substantially cross flower-shape, and connecting seat 21 passes through from suit opening 33, is protecting
Two lower installing holes on the upper surface positioned at suit opening 33 both sides of sheath 32 and in corresponding lower mounting seat 19 on lower surface
23 have two openings, for through U bolt 20.Protective case 32 adopts silica gel material, can improve lower mounting seat further
Docile performance between 19 and horizontal beam 5 and frictional force are it is ensured that the installation site of horizontal beam anti-drop device 9 is in vehicle operation
In be relatively-stationary.
As shown in Figure 4 and Figure 5, O shape fake 14 is also cross the upper connecting hole 16 in upper mounting seat 15 and lower mounting seat 19
On lower connecting hole 22, and then upper mounting assembly 11 and lower mounting assembly 12 are linked together.Rupture in the event of horizontal beam 5
Situation, O shape fake 14 will hold lower mounting assembly 12, and then support plays horizontal beam 5, prevent car accident occur.
Because the structures such as the car body 1 of different automobile types, bogie 2 all differ, horizontal beam anti-drop device 9 is on car body 1
Sling point position also all differs, by changing the girth of O-shaped fake 14, you can adapt to horizontal beam 5 and the car body 1 of different automobile types
Installation site, as shown in figure 1, the position that is fixedly connected with car body 1 of upper mounting assembly 11 and lower mounting assembly 12 and horizontal beam 5
The position being fixedly connected, not on same vertical, has the angle of an inclination it is also possible to upper mounting assembly 11 is fixing with car body 1
The position that the position connecting is fixedly connected with horizontal beam 5 with lower mounting assembly 12 is on same vertical, is formed vertically
Structure.
Vehicle, when being compressed or being overcharged operating mode by curve, track superelevation and empty spring, can lead to car body 1 and horizontal beam 5
Between produce relative motion, during this, O-shaped fake 14 also can move back and forth therewith, O-shaped fake 14 when mounted to select close
The length of reason, when the girth of O-shaped fake 14 will ensure the situation that the limit occurs between car body 1 and horizontal beam 5, also will not make O
Type fake 14 bears larger pulling force, in the surplus diametrically leaving 10mm.The structure of O-shaped fake 14 can be prevented effectively from adjoint
Internal stress produced by relative motion between car body 1 and horizontal beam 5, and then the overall support of beam anti-drop device 9 of improving the standard
Ability, improves its service life.
Due to being connected by an O shape fake 14 between upper mounting assembly 11 and lower mounting assembly 12, its girth was both permissible
Meet the demand when vehicle occurs extreme sport, again will not as the steel wire rope that commonly uses in prior art or chain,
Surplus due to needing is excessive, and causes steel wire rope or chain to naturally droop, and touches with horizontal beam 5 when vehicle runs, and sends out
The situation of raw wear levels beam 5, even if O shape fake 14 also will not touch horizontal beam 5 under the limit state that vehicle runs
Situation, enter without wear damage is caused to horizontal beam 5 etc., the phenomenons such as occurred level beam 5 corrosion can be prevented effectively from, also exist
Avoid the generation of horizontal beam 5 fracture accident to a certain extent.And, upper connecting hole 16 and lower company are passed through using O shape fake 14
The mode connecing hole 22 connects, and eliminates the steel wire rope of the prior art and chain claim-reduction structure in end, not only can save
Larger installing space, and abrasion back and forth will not be caused to break due to the motion of vehicle in the claim-reduction locations of structures connecting
Split, the safety in utilization of this horizontal beam anti-drop device 9 is greatly improved.
In the present embodiment, the mounting means of O shape fake 14, using by steel cable sequentially pass through upper connecting hole 16 and under
After connecting hole 22, then by the seam of steel wire rope is carried out with hand woven or machine braiding, it is ultimately formed into complete fake
Structure.This mode is not only easily installed, and do not need to take more installing space it is also ensured that O shape fake 14 whole
Body intensity, and then ensure when horizontal beam 5 ruptures can effectively support horizontal beam 5 and the various equipment installed thereon.
As shown in figure 4, being also respectively provided with one in the inside of upper connecting hole 16 and lower connecting hole 22 there is high-wear resistance
Nylon jacket 29, as shown in figure 11, nylon jacket 29 has central through hole 30, and O shape fake 14 is from the central through hole 30 of nylon jacket 29
In pass through.
In order to ensure nylon jacket 29 bulk strength after mounting, narrow waist-drum-shaped between nylon jacket 29 generally two ends alleviating distention in middle-JIAO
Structure, the wide part in two ends is stuck at connecting hole 16 and the outer ledge of lower connecting hole 22, realizes the fixation of nylon jacket 29.Buddhist nun
The diameter of the central through hole 30 of the actor playing a supporting role 29 is larger than the diameter of O shape fake 14, makes O shape fake 14 have one in central through hole 30
Fixed motion surplus.
After nylon jacket 29 adopts narrow waist-drum-shaped structure between the alleviating distention in middle-JIAO of two ends, it is difficult to insert connecting hole 16 and lower connecting hole 22
Interior, in the present embodiment, when mounted, at least one end selecting nylon jacket 29 first is to may be inserted into connecting hole 16 to nylon jacket 29
With the tube-shaped structure in lower connecting hole 22, after connecting hole 16 and lower connecting hole 22 in insertion, then by hot-forming work
Skill, makes the end of nylon jacket 29 turn up, and becomes narrow waist-drum-shaped structure between complete two ends alleviating distention in middle-JIAO, realizes nylon jacket 29 simultaneously
Install and fix.
The installation method of above-mentioned horizontal beam anti-drop device 9 is described below in detail, comprises the steps：
(1) nylon jacket 29 being tubular by two one end inserts the upper connecting hole 16 of upper mounting seat 15 and lower installation respectively
In the lower connecting hole 22 of seat 19, by hot-forming technique, so that the end of nylon jacket 29 is turned up, become complete two ends alleviating distention in middle-JIAO
Between narrow waist-drum-shaped structure, and then nylon jacket 29 is fixed at upper connecting hole 16 and lower connecting hole 22.
(2) upper mounting seat 15 is passed through two bolts 18 solid with two installing plates 17 being arranged on car body 1 draw beam 10
Fixed connection.
(3) U bolt 20 is bypassed horizontal beam 5, two of lower mounting seat 19 lower installing holes 23 are passed through U bolt 20
Two top ends, two nuts 25 are enclosed within the external screw thread 24 of 20 two top ends of U bolt and tighten fixation, then install out
Mouth pin 28, and then U bolt 20 is fixed together with lower mounting seat 19, now, horizontal beam 5 is supporting at U bolt
20 and the space that surrounds of lower mounting seat 19 in.
(4) by a sufficient length and port be unbraided state steel wire rope sequentially pass through upper mounting seat 15 and under
After the nylon jacket central through hole 30 of mounting seat 19, hand woven or machine braiding, end form are carried out again to the seam of steel wire rope
Become complete O shape fake 14, so far, complete the installation of anti-drop device.
As described above, combining the plan content given by accompanying drawing, similar technical scheme can be derived.In every case it is not take off
From the content of technical solutions of the utility model, according to technical spirit of the present utility model above example is made any simple
Modification, equivalent variations and modification, all still fall within the range of technical solutions of the utility model.
Claims (9)
1. a kind of rail vehicle truck horizontal beam anti-drop device it is characterised in that：Including upper mounting assembly and lower mounting assembly,
Described upper mounting assembly is fixed on car body, and described lower mounting assembly is fixed on horizontal beam, described upper mounting assembly and lower peace
Pass through an O shape fake between arrangement to connect.
2. a kind of rail vehicle truck horizontal beam anti-drop device according to claim 1 it is characterised in that：On described
Upper connecting hole is had on mounting assembly, lower connecting hole is had on described lower mounting assembly, described O shape fake passes through described upper company
Connect hole and lower connecting hole connects.
3. a kind of rail vehicle truck horizontal beam anti-drop device according to claim 2 it is characterised in that：Described lower peace
Arrangement includes lower mounting seat and U bolt, and the two ends of described U bolt are fixedly connected with lower mounting seat, described horizontal beam quilt
Support in described U bolt and lower mounting seat, in the upper surface of described lower mounting seat a connecting seat protruding upward, on connecting seat
It is provided for the lower connecting hole through described O shape fake.
4. a kind of rail vehicle truck horizontal beam anti-drop device according to claim 2 it is characterised in that：Described upper peace
Arrangement includes T-shaped upper mounting seat, is provided for upper through described O shape fake on the vertical component effect of described upper mounting seat
Connecting hole.
5. a kind of rail vehicle truck horizontal beam anti-drop device according to claim 2 it is characterised in that：Described O shape
Fake passes through being knitted to form as complete fake structure of seam by a rope again through after described upper connecting hole and lower connecting hole.
6. a kind of rail vehicle truck horizontal beam anti-drop device according to claim 2 it is characterised in that：On described
Connecting hole and lower connection in the hole cover a solid nylon jacket respectively, and described nylon jacket has central through hole, and described O shape fake passes through described
Central through hole.
7. a kind of rail vehicle truck horizontal beam anti-drop device according to claim 6 it is characterised in that：Described nylon
Narrow waist-drum-shaped between set generally two ends alleviating distention in middle-JIAO, the wide part in two ends is stuck at connecting hole and the outer ledge of lower connecting hole.
8. a kind of rail vehicle truck horizontal beam anti-drop device according to claim 6 it is characterised in that：Described nylon
Set be after connecting hole and lower connecting hole in insertion reheating molded realize installing fix.
9. a kind of rail vehicle, including car body and bogie, is provided with horizontal beam in the end of described bogie, its feature exists
In：Install just like the horizontal beam anti-drop device described in any one of claim 1-8 between described car body and horizontal beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620565853.4U CN205971348U (en) | 2016-06-13 | 2016-06-13 | Rail vehicle bogie horizontal beam anticreep device and rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620565853.4U CN205971348U (en) | 2016-06-13 | 2016-06-13 | Rail vehicle bogie horizontal beam anticreep device and rail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205971348U true CN205971348U (en) | 2017-02-22 |
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ID=58020872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620565853.4U Active CN205971348U (en) | 2016-06-13 | 2016-06-13 | Rail vehicle bogie horizontal beam anticreep device and rail vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205971348U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106043343A (en) * | 2016-06-13 | 2016-10-26 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle bogie horizontal beam disengagement preventing hanging device, installation method thereof and rail vehicle |
| CN110254479A (en) * | 2019-06-18 | 2019-09-20 | 江苏必得科技股份有限公司 | Barrier and Derail detector |
-
2016
- 2016-06-13 CN CN201620565853.4U patent/CN205971348U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106043343A (en) * | 2016-06-13 | 2016-10-26 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle bogie horizontal beam disengagement preventing hanging device, installation method thereof and rail vehicle |
| CN110254479A (en) * | 2019-06-18 | 2019-09-20 | 江苏必得科技股份有限公司 | Barrier and Derail detector |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |