CN207523682U - A kind of locomotive emergency brake - Google Patents
A kind of locomotive emergency brake Download PDFInfo
- Publication number
- CN207523682U CN207523682U CN201721669827.7U CN201721669827U CN207523682U CN 207523682 U CN207523682 U CN 207523682U CN 201721669827 U CN201721669827 U CN 201721669827U CN 207523682 U CN207523682 U CN 207523682U
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- chamber
- control chamber
- piston
- main control
- pressurization control
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 17
- 238000005192 partition Methods 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Braking Systems And Boosters (AREA)
Abstract
A kind of locomotive emergency brake disclosed in the utility model, it is top-down in valve body to be provided with pressurization control chamber, main control chamber and brake chamber including valve body, it is provided with partition board between pressurization control chamber and main control chamber；Pressurization control intracavitary can upper-lower seal slide be provided with charged piston, the fore-set extended downwardly is provided in the middle part of charged piston, fore-set is coordinated to be provided with the guide sleeve extended downwardly on partition board, in brake chamber can upper-lower seal slide be provided with main piston, inserting groove is provided at the top of main piston, guide sleeve seals sliding plug in inserting groove, and resetting spring is provided between the bottom of main piston and main control chamber.The utility model is provided with charged piston, can reduce the pressure requirement to the pressure air of input, reach energy-efficient effect；The booster body for controlling charged piston supercharging effect is additionally provided with, and the booster body is electrodeless adjustment, can arbitrarily be adjusted according to actual conditions, it is very convenient, practical.
Description
Technical field
The utility model is related to brake valve of car technical field more particularly to a kind of locomotive emergency brakes.
Background technology
It is growing with auto manufacturing and transportation, to automobile-use especially drawbar trailer brake valve
Technology requirement it is also higher and higher, it is directly related to traffic safety, and in known technology, existing motor vehicle drawbar trailer is tight
Anxious brake valve is mainly the single or multiple control chamber controlled emergency braking valves being made of valve seat, valve deck, spool, general to control
Chamber processed cannot convert ratio, occur converting the brake valve of ratio later but transformation ratio is fixed, lack and adjust
Type.
Utility model content
The purpose of this utility model is that in place of avoiding the deficiencies in the prior art, a kind of locomotive emergency brake is provided, from
And effectively solve the shortcomings of the prior art.
To achieve the above object, the technical solution that the utility model is taken is：A kind of locomotive emergency brake, including valve
Body, it is top-down in the valve body to be provided with the first pressurization control chamber, the second pressurization control chamber, main control chamber and brake chamber,
First partition, the second pressurization control chamber and master control are provided between the first pressurization control chamber and the second pressurization control chamber
Second partition is provided between chamber processed；
Inflating port, braking delivery outlet and main control air inlet are provided on the side wall of the valve body；
The first pressurization control intracavitary can upper-lower seal slide be provided with the first charged piston, the first charged piston
Middle part is provided with the first fore-set extended downwardly, and first fore-set is coordinated to be provided with extended downwardly in the first partition
One guide sleeve, the second pressurization control intracavitary can upper-lower seal slide be provided with the second charged piston, the second charged piston
Top be provided with the first inserting groove, first guide sleeve seals sliding plug in first inserting groove, the second supercharging
The second fore-set extended downwardly is provided in the middle part of piston, second fore-set is coordinated to be provided with to downward on the second partition
The second guide sleeve stretched, in the brake chamber can upper-lower seal slide be provided with main piston, the is provided at the top of main piston
Two inserting grooves, second guide sleeve seal sliding plug in second inserting groove, the bottom of main piston and main control chamber
Between be provided with resetting spring；
The top of the main piston, the lateral wall of the second guide sleeve, the bottom of second partition and valve body inner wall enclose
The main control chamber, the main control air inlet are connected with main control chamber, the first pressurization control chamber, the second pressurization control chamber,
The opening being connected with the main control air inlet opened up on first pressurization control chamber is positioned at the upper of first charged piston
Portion, the opening being connected with the main control air inlet opened up on the second pressurization control chamber is positioned at second charged piston
Top；
The top of first charged piston is provided with the booster body of adjustable control with changed scale；The booster body includes installation
Plate, connector, elastic component and adjusting rod, the installing plate by connector be installed in first charged piston top and
It is resisted against on the roof of the first pressurization control chamber, the through-hole passed through for the adjusting rod is provided on installing plate, elastic component is set
It puts between installing plate and adjusting rod, via is offered at the top of valve body, adjusting rod sealing is slidably arranged in via and adjusts
Valve body is stretched out on the top of pole, and adjusting rod carries out the locking of position by locking mechanism；
The brake chamber lower part is provided with and communicated with opening and closing chamber, and the side for being opened and closed chamber is provided with and communicated with gas source interface, is opened and closed chamber
Bottom be fixedly installed spool stent, in spool stent can upper-lower seal slide be provided with spool, spool is located at the master
The underface of piston is provided between spool and spool stent and holds out against spring, holds out against spring and pushes up spool so that spool supports
Main control chamber is leaned against with being opened and closed in the ladder platform of chamber connectivity part, so as to block the connection of the brake chamber and gas source interface；
The opening and closing chamber is connected, and be provided with one-way valve structures on the interface channel of the two with the inflating port.
Further, the locking mechanism includes adjusting nut and pressure bearing, and the top of the adjusting rod coordinates the tune
Whole nut is provided with screw thread, and pressure bearing is sleeved on adjusting rod and between adjusting nut and valve body.
Further, the adjusting rod has also screwed locking nut on the top of adjusting nut.
Further, the elastic component is spring.
Further, the side of the opening and closing chamber is provided with and communicated with multiple gas source interfaces.
Further, the one-way valve structures include check valve and tower spring.
Further, the braking delivery outlet is provided with multiple.
Further, it is provided with valve in the communicating passage of the main control air inlet and secondary booster.
Further, it is provided with first row stomata on the body wall residing for the first pressurization control chamber.
Further, it is provided with second row stomata on the body wall residing for the second pressurization control chamber.
Further, it is provided with third gas vent on the body wall residing for the brake chamber.
The above-mentioned technical proposal of the utility model has the advantages that：The utility model is provided with charged piston, can
To reduce the pressure requirement to the pressure air of input, reach energy-efficient effect；It is additionally provided with that charged piston is controlled to be pressurized
The booster body of effect, and the booster body is electrodeless adjustment, can arbitrarily be adjusted according to actual conditions, very convenient,
It is practical.
Description of the drawings
Fig. 1 is the utility model embodiment structure diagram.
Specific embodiment
The embodiment of the utility model is described in further detail with reference to the accompanying drawings and examples.Following embodiment
For illustrating the utility model, but cannot be used for limiting the scope of the utility model.
In the description of the present invention, unless otherwise indicated, " multiple " are meant that two or more；Term
The orientation or position of the instructions such as " on ", " under ", "left", "right", " interior ", " outer ", " front end ", " rear end ", " head ", " tail portion " are closed
Be for based on orientation shown in the drawings or position relationship, be for only for ease of description the utility model and simplify description rather than
Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore cannot
It is construed as a limitation of the present invention.In the description of the present invention, it should be noted that unless otherwise specific regulation
And restriction, term " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；Can be mechanical connection or electrical connection；It can be directly connected, intermediary can also be passed through
It is indirectly connected.For the ordinary skill in the art, it can understand above-mentioned term in the utility model with concrete condition
Concrete meaning.
As shown in Figure 1, a kind of locomotive emergency brake described in the present embodiment, including valve body 1, in valve body 1 from top to bottom
Be provided with the first pressurization control chamber A, the second pressurization control chamber B, main control chamber C and brake chamber D, the first pressurization control chamber A with
First partition 2 is provided between second pressurization control chamber B, be provided between the second pressurization control chamber B and main control chamber C second every
Plate 3；
Inflating port 4, braking delivery outlet 5 and main control air inlet 6 are provided on the side wall of valve body 1；
In first pressurization control chamber A can upper-lower seal slide be provided with the first charged piston 7, the first charged piston 7
Middle part is provided with the first fore-set 7a extended downwardly, the first fore-set 7a is coordinated to be provided with first extended downwardly in first partition 2
In guide sleeve 2a, the second pressurization control chamber B can upper-lower seal slide be provided with the second charged piston 8, the second charged piston 8
Top is provided with the first inserting groove 8a, the first guide sleeve 2a and seals sliding plug in the first inserting groove 8a, the second charged piston 8
Middle part be provided with the second fore-set 8b extended downwardly, the second fore-set 8b is coordinated to be provided with extended downwardly on second partition 3
In two guide sleeve 3a, brake chamber D can upper-lower seal slide be provided with main piston 9, the top of main piston 9 is provided with the second grafting
Slot 9a, the second guide sleeve 3a sealing sliding plug is set in the second inserting groove 9a between the bottom of main piston 9 and main control chamber C
It is equipped with resetting spring 10；
The top of main piston 9, the lateral wall of the second guide sleeve 3a, the bottom of second partition 3 and the inner wall of valve body 1 enclose
Main control chamber C, main control air inlet 6 are connected with main control chamber C, the first pressurization control chamber A, the second pressurization control chamber B, and first
The opening being connected with main control air inlet 6 opened up on pressurization control chamber A increases positioned at the top of the first charged piston 7, second
The opening being connected with main control air inlet 6 opened up on pressure control chamber B is positioned at the top of the second charged piston 8；
The top of first charged piston 7 is provided with the booster body of adjustable control with changed scale；Booster body includes installing plate 11, connects
Fitting 12, elastic component 13 and adjusting rod 14, in this embodiment, elastic component 13 are spring, and installing plate 11 is solid by connector 12
Be located at the top of the first charged piston 7 and be resisted against on the roof of the first pressurization control chamber A, be provided on installing plate 11 for
The through-hole that adjusting rod 14 passes through, elastic component 13 are arranged between installing plate 11 and adjusting rod 14, are provided with and are used on adjusting rod 14
The spring base of elastic component 13 is supported, the top of valve body 1 offers via, and the sealing of adjusting rod 14 is slidably arranged in via and adjusts
Valve body 1 is stretched out on the top of pole 14, and adjusting rod 14 carries out the locking of position by locking mechanism, and locking mechanism includes adjusting nut
15 are provided with screw thread with pressure bearing 16, the top cooperation adjusting nut 15 of adjusting rod 14, and pressure bearing 16 is sleeved on adjusting rod
On 14 and between adjusting nut 15 and valve body 1, it is preferred that adjusting rod 14 has also screwed lock on the top of adjusting nut 15
Tight nut 17.
Brake chamber D lower parts are provided with and communicated with opening and closing chamber E, and the side of opening and closing chamber E is provided with and communicated with gas source interface 18, is opened and closed chamber
The bottom of E is fixedly installed spool stent 19, in spool stent 19 can upper-lower seal slide be provided with spool 20, spool 20
It in the underface of main piston 9, is provided between spool 20 and spool stent 19 and holds out against spring 21, held out against spring 21 and push up valve
Core 20 is so that spool 20 is resisted against main control chamber C with being opened and closed in the ladder platform of chamber E connectivity parts, so as to block brake chamber D and air source
The connection of interface 18；
Opening and closing chamber E is connected, and one-way valve structures are provided on the interface channel of the two with inflating port 4, check valve knot
Structure includes check valve 22 and tower spring 23, it is preferred that the lower section of tower spring 23 is provided with silk plug 24, can realize the fast of one-way valve structures
Speed dismounting.
The side of opening and closing chamber E is provided with and communicated with multiple gas source interfaces 18, it is preferred that there are three gas source interfaces 18 for setting.
Main control air inlet 6 in the communicating passage of secondary booster with being provided with valve, it is preferred that valve is solenoid valve.
Braking delivery outlet 5 is provided with multiple, it is preferred that braking delivery outlet 5 is provided with 6.
First row stomata 25 is provided on 1 side wall of valve body residing for first pressurization control chamber A.
Second row stomata 26 is provided on 1 side wall of valve body residing for second pressurization control chamber B.
Third gas vent 27 is provided on 1 side wall of valve body residing for brake chamber D.
Above-mentioned all places of being slidingly sealed are both provided with sealing ring.
In the initial state, by inflating port 4, inwardly supplement compressed gas, compressed gas push down on unidirectionally pressure gas source
Valve 22, tower spring 23 are compressed, and pressed gas is entered by the gap between check valve 22 and valve body 1 in opening and closing chamber E, then logical
It crosses gas source interface 18 to enter in air accumulator, completes gas storage work, prepare to provide brake pressure gas.
Brake modes control pressure gas is waited to enter in main control air inlet 6 by foot-operated, a part of compressed gas enters
Into main control chamber C, main piston 9 is pushed to move down, a part of compressed gas is entered in the first pressurization control chamber A, works as pressure
After power overcomes the elastic force of elastic component 13, the first charged piston 7 is pushed to move down, the first charged piston 7 passes through the first fore-set
7a pushes down on the second charged piston 8, and a part of pressed gas is entered in the second pressurization control chamber B, also pushes the second supercharging
Piston 8 moves down, and booster action is pushed by the supercharging of the first charged piston 7, the second charged piston, compared to no first
When charged piston 7, the second charged piston 8, the pressure requirement to the pressure air of input can be reduced, that is, reaches energy-efficient work
With then, main piston 9 pushes down on spool 20, forms what is come out for compressed gas in air accumulator between spool 20 and valve body 1
Gap, the compressed gas in air accumulator enter successively by gas source interface 18, opening and closing chamber E, brake chamber D and braking delivery outlet 5
Into brake piping, and then brake is completed, later under the action of each spring element, all parts playback, and work as storage
When gas pressure intensity deficiency in gas tank, it is inflated work again.
During above-mentioned use, when elastic component 13 is in free state, it is empty that charged piston 7 is located at its activity
Between bottommost, the supercharging effect of the first charged piston 7 can be adjusted by booster body, when adjusting rod 14 moves up simultaneously
When fixed, i.e. the first fore-set 7a of 7 lower section of charged piston becomes larger with a distance from main piston 9, and elastic component 13 is compressed, for supercharging
Piston 7 provides a upward elastic force, when main control air inlet 5 is in the case of the compressed gas for being passed through same pressure, first
Charged piston 7 just becomes larger to move down the pressure needed for the required elastic force of elastic component 13 overcome, that is, is used for overcoming bullet
The pressure of power becomes larger, for pushing the pressure of the first charged piston 7 just smaller, so in such cases, main piston 9 moves down
Control force it is just smaller, formed between spool 20 and valve body 1 for compressed gas in air accumulator come out gap it is just smaller, institute
With just smaller to the pressure in brake piping provided in air accumulator, braking effect is weaker；Conversely, when adjusting rod 14 moves down
And when fixation, to the pressure in brake piping with regard to larger provided in air accumulator, braking effect is stronger, and the above process
In be adjusted to electrodeless adjustment, can arbitrarily be adjusted according to actual conditions, very convenient, practical, i.e., charged piston 7 is located at it
The bottommost of activity space, i.e., the effect being pressurized at this time is maximum, remote when being moved upwards up to the first charged piston 7 by adjusting rod 14
During from first partition 2, elastic component 13 is compressed, and provides a upward elastic force for charged piston 7, the effect being pressurized at this time is 0.
On the other hand, it can realize whether pressed gas actively adds the second charged piston 8 by the opening and closing of valve
Pressure, coordinates above-mentioned electrodeless adjustment so that whole device uses very flexibly.
So can by the way that adjusting rod 14 is controlled not generate supercharging effect come the first pressurization control chamber A, certain first
Valve can also be provided on pressurization control chamber A, the first pressurization control chamber A, the second pressurization control are controlled by valve respectively
Chamber B's is turned on or off, and realizes the purpose of arbitrary adjustment.
Due to cross-sectional area (the i.e. upper and lower surfaces of main piston 9 of the cross-sectional area of main control chamber C more than brake chamber D
Area), so in the equilibrium state of gas supply, due to F=PS, so in the atmospheric pressure value of compressed air caused by brake chamber D
More than the atmospheric pressure value of main control chamber C, i.e. the atmospheric pressure value of brake chamber D is the certain multiple of main control chamber C atmospheric pressure values, based on the multiple
The ratio of the cross-sectional area of control chamber C divided by the cross-sectional area of brake chamber D, described the utility model is according to road conditions and the feelings of vehicle
Even if condition does not use the first pressurization control chamber A and the second pressurization control chamber B, equally also there is the function of more preceding braking.
In addition, the bottom of valve body 1 is provided with emergency braking mechanism, the utility model changes for the structure in the prior art
Into, therefore emergency braking mechanism is same as the prior art, is described briefly herein, emergency braking mechanism includes sealing and is slidably arranged in
The sliding rack 28 with upper and lower opening on valve body 1, the inside of sliding rack 28 are enclosed above-mentioned opening and closing chamber E, spool stent
19 are fixed at the inner cavity lower part of sliding rack 28, are provided on the side wall of sliding rack 28 and are connect respectively with one-way valve structures, air source
The hole that is connected of mouth, on valve body 1 fixed setting be useful for holes baffle 29 of the limit slippage frame 28 to bottom offset, in a system
In dynamic workflow, after, after all parts playback, main piston 9 moves up, between being formed between spool 20
Gap is provided with via 20a on spool 20, and remaining pressed gas is flowed back in brake chamber D on brake piping, then along main work
Gap between plug 9 and spool 20 is flowed in via 20a, is then discharged into air through the hole on baffle 29, and the above process is just
Normal unloads gas process.
Emergency braking principle is：Under general state, due to having compressed air on inflating port 4, the pressure is open-top unidirectional
It, can be by pushing the hierarchic structure of sliding rack 28 so that sliding rack 28 moves down, and is resisted against baffle 29 while valve 22
On, i.e., the pressure in pressure and air accumulator at inflating port 4 is in equilibrium state, when emergency braking, at inflating port 4
Compressed air disappears, and pressure herein is 0, this pressure that driving sliding rack 28 is resulted in move up, which is more than, drives it to moving down
Dynamic pressure, so sliding rack 28 moves up, and spool 20 is driven to move up by holding out against spring 21, mobile process
In, spool 20 contacts first with main piston 9, forms sealing cooperation, and then sliding rack 28 continues to stop after moving up one end distance, institute
Coordinated with spool 20 and main piston 9, enclose the connection with air, gap, air accumulator are formed between spool 20 and sliding rack 28
In pressed gas entered in brake chamber D by the gap, then into brake piping, realization is died emergency braking
Journey.
The embodiment of the utility model in order to example and description for the sake of and provide, and be not exhaustively or will
The utility model is limited to disclosed form.Many modifications and variations are aobvious and easy for the ordinary skill in the art
See.Selection and description embodiment are the principle and practical applications in order to more preferably illustrate the utility model, and make this field
Those of ordinary skill it will be appreciated that the utility model so as to design the various embodiments with various modifications suitable for special-purpose.
Claims (10)
1. a kind of locomotive emergency brake, including valve body, it is characterised in that：It is top-down in the valve body to be provided with the first increasing
Press control chamber, the second pressurization control chamber, main control chamber and brake chamber, the first pressurization control chamber and the second pressurization control chamber it
Between be provided with first partition, be provided with second partition between the second pressurization control chamber and main control chamber；
Inflating port, braking delivery outlet and main control air inlet are provided on the side wall of the valve body；
The first pressurization control intracavitary can upper-lower seal slide be provided with the first charged piston, the middle part of the first charged piston
The first fore-set extended downwardly is provided with, first fore-set is coordinated to be provided with first extended downwardly in the first partition and is led
To set, the second pressurization control intracavitary can upper-lower seal slide be provided with the second charged piston, the top of the second charged piston
Portion is provided with the first inserting groove, and first guide sleeve seals sliding plug in first inserting groove, the second charged piston
Middle part be provided with the second fore-set extended downwardly, second fore-set is coordinated to be provided with what is extended downwardly on the second partition
Second guide sleeve, in the brake chamber can upper-lower seal slide be provided with main piston, second is provided at the top of main piston and is inserted
Access slot, second guide sleeve seals sliding plug in second inserting groove, between the bottom of main piston and main control chamber
It is provided with resetting spring；
The top of the main piston, the lateral wall of the second guide sleeve, the bottom of second partition and valve body inner wall enclose it is described
Main control chamber, the main control air inlet are connected with main control chamber, the first pressurization control chamber, the second pressurization control chamber, and first
The opening being connected with the main control air inlet opened up on pressurization control chamber is located at the top of first charged piston, the
The opening being connected with the main control air inlet opened up on two pressurization control chambers is positioned at the top of second charged piston；
The top of first charged piston is provided with the booster body of adjustable control with changed scale；The booster body include installing plate,
Connector, elastic component and adjusting rod, the installing plate are installed in the top of first charged piston by connector and support
On the roof for leaning against the first pressurization control chamber, the through-hole passed through for the adjusting rod, elastic component setting are provided on installing plate
Between installing plate and adjusting rod, via is offered at the top of valve body, adjusting rod sealing is slidably arranged in via and adjusts
Valve body is stretched out on the top of bar, and adjusting rod carries out the locking of position by locking mechanism；
The brake chamber lower part is provided with and communicated with opening and closing chamber, and the side for being opened and closed chamber is provided with and communicated with gas source interface, is opened and closed the bottom of chamber
Portion is fixedly installed spool stent, in spool stent can upper-lower seal slide be provided with spool, spool is located at the main piston
Underface, be provided between spool and spool stent and hold out against spring, held out against spring and push up spool so that spool is resisted against
Main control chamber is with being opened and closed in the ladder platform of chamber connectivity part, so as to block the connection of the brake chamber and gas source interface；
The opening and closing chamber is connected, and be provided with one-way valve structures on the interface channel of the two with the inflating port.
2. a kind of locomotive emergency brake according to claim 1, it is characterised in that：The locking mechanism includes adjustment spiral shell
Female and pressure bearing, the top of the adjusting rod coordinate the adjusting nut to be provided with screw thread, and pressure bearing is sleeved on adjusting rod
Above and between adjusting nut and valve body.
3. a kind of locomotive emergency brake according to claim 2, it is characterised in that：The adjusting rod is in adjusting nut
Top has also screwed locking nut.
4. a kind of locomotive emergency brake according to claim 1, it is characterised in that：The elastic component is spring.
5. a kind of locomotive emergency brake according to claim 1, it is characterised in that：The side connection of the opening and closing chamber is set
It is equipped with multiple gas source interfaces.
6. a kind of locomotive emergency brake according to claim 1, it is characterised in that：The one-way valve structures include unidirectional
Valve and tower spring.
7. a kind of locomotive emergency brake according to claim 1, it is characterised in that：The main control air inlet with it is secondary
Valve is provided in the communicating passage of supercharging.
8. a kind of locomotive emergency brake according to claim 1, it is characterised in that：Residing for the first pressurization control chamber
Body wall on be provided with first row stomata.
9. a kind of locomotive emergency brake according to claim 1, it is characterised in that：Residing for the second pressurization control chamber
Body wall on be provided with second row stomata.
10. a kind of locomotive emergency brake according to claim 1, it is characterised in that：Valve body residing for the brake chamber
Third gas vent is provided on side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721669827.7U CN207523682U (en) | 2017-12-05 | 2017-12-05 | A kind of locomotive emergency brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721669827.7U CN207523682U (en) | 2017-12-05 | 2017-12-05 | A kind of locomotive emergency brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207523682U true CN207523682U (en) | 2018-06-22 |
Family
ID=62577851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721669827.7U Withdrawn - After Issue CN207523682U (en) | 2017-12-05 | 2017-12-05 | A kind of locomotive emergency brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207523682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107839679A (en) * | 2017-12-05 | 2018-03-27 | 肖俊港 | A kind of locomotive emergency brake |
-
2017
- 2017-12-05 CN CN201721669827.7U patent/CN207523682U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107839679A (en) * | 2017-12-05 | 2018-03-27 | 肖俊港 | A kind of locomotive emergency brake |
| CN107839679B (en) * | 2017-12-05 | 2024-08-23 | 英利新能源(宁夏)有限公司 | Locomotive emergency brake valve |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180622 Effective date of abandoning: 20240823 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180622 Effective date of abandoning: 20240823 |