CN201761484U - Emergency brake valve for electrical locomotive - Google Patents
Emergency brake valve for electrical locomotive Download PDFInfo
- Publication number
- CN201761484U CN201761484U CN2010202946941U CN201020294694U CN201761484U CN 201761484 U CN201761484 U CN 201761484U CN 2010202946941 U CN2010202946941 U CN 2010202946941U CN 201020294694 U CN201020294694 U CN 201020294694U CN 201761484 U CN201761484 U CN 201761484U
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- Prior art keywords
- emergency brake
- spool
- valve body
- housing
- valve
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Abstract
The utility model discloses an emergency brake valve for an electrical locomotive, which comprises a valve body, a valve core and a driving device, wherein gas passages which are axially communicated are arranged in the valve body, installing holes communicated with the gas passages are arranged on the side wall of the valve body, the valve core is arranged in the gas passages through the installing holes, the axis of the valve core is orthometric with the axis of the gas passages, through holes capable of being communicated with or sealed to the gas passages are arranged on the valve core in the radial direction, the valve core respectively extends towards both ends to the outside of the valve body along the axis of the valve core via the installing hole to form two extending ends, one extending end of the valve core is fixedly connected with the driving device, the other extending end of the valve core is connected with an emergency brake signal generator, the driving device can drive the valve core to rotate, the valve core can drive the emergency brake signal generator to act, and emergency brake signals can be output to a locomotive control system. The utility model can transmit the emergency brake signals to the locomotive control system in time, and has the advantages of higher intensity, long maintenance period and low manufacture cost.
Description
Technical field
The utility model relates to a kind of emergency brake valve, especially a kind of emergency brake valve that is used for electric locomotive that has emergency brake signal generating means control group.
Background technology
Emergency brake valve is a kind of widely used brake activation valve, especially is applied in the electric locomotive.The effect that is used for the emergency brake valve of electric locomotive is to start the locomotive emergency braking system, forces the locomotive in travelling to take emergency braking, guarantee in the shortest time, to realize stopping, thus the train operation accident of effectively avoiding accident to cause.Therefore, emergency brake valve has become one of requisite vitals in electric locomotive.
In use, according to the specific requirement of different locomotive vehicles, emergency brake valve can be designed as the multiple model of size difference, structural similitude.At present, the emergency brake valve of installing in the electric locomotive all adopts pure physical construction, it mainly comprises valve body, spool and handle, be provided with the gas passage of axial perforation in the described valve body, the sidewall of described valve body is provided with mounting hole, described mounting hole connects described gas passage, the orthogonal axe setting of the axis of common described mounting hole and described gas passage.Wherein, an end of gas passage is an admission port, is used for being connected with the locomotive brake person in charge; The another port is an air extractor duct, is used for being connected with atmosphere.Described spool is installed in the described gas passage, and the orthogonal axe of the axis of spool and gas passage.One external part of described spool extends to the outside of described valve body through mounting hole along the axis of spool, the external part of this spool is captiveed joint with described handle, by the external force turning handle, driving described spool rotates in described gas passage, owing to radially be provided with through hole on the spool, promptly the axis of this through hole is identical with the valve axis direction, along with the rotation of spool, alternately forms perforation or closed state between through hole and the gas passage.When this through hole and gas passage are in sealing and are provided with, the gas passage locking, emergency brake valve is in closed condition; When being in, this through hole and gas passage connect when being provided with, the gas passage conducting, emergency brake valve is in opening, at this moment, pressurized air in locomotive brake is responsible for exports to atmosphere by gas passage, pressurized air sharply reduces pressure, and according to the energy brake principle, the locomotive emergency braking system produces the emergency braking action.This shows that existing emergency brake valve is by the perforation and the sealing of the gas passage of rotational valve core control emergency brake valve, thus the opening and closing of control emergency brake valve, the effect of realization emergency braking.
Though the above-mentioned emergency brake valve that is used for electric locomotive has simple in structure, easy to operate advantage, it structurally also has the some shortcomings part:
1, existing emergency brake valve, though can realize the effect of hard brake stop, but emergency brake valve can not be in time after action be passed to locomotive control with the information of locomotive emergency braking, therefore may cause the personnel's of controlling instruction mistake to occur, the operation that leads to errors causes device damage even accidents caused.
2, the valve body of existing emergency brake valve adopts stainless steel material to make, and body strength is lower, and maintenance cycle is short, and manufacturing cost is higher.
The utility model content
The utility model provides a kind of emergency brake valve that is used for electric locomotive, and this emergency brake valve that is used for electric locomotive can in time be passed to locomotive control with emergency brake signal, and intensity is higher, maintenance cycle long, low cost of manufacture.
For achieving the above object, a kind of emergency brake valve that is used for electric locomotive that the utility model proposes, comprise valve body, spool and actuating device, be provided with the gas passage of axial perforation in the described valve body, on the sidewall of described valve body, be provided with the mounting hole that connects described gas passage, described spool is installed in the described gas passage by described mounting hole, and the axis of described spool and the orthogonal axe of gas passage, radially be provided with on the described spool and can connect or the osed top through hole with described gas passage, described spool forms two external parts to the outside that two ends extend to described valve body along the axis of described spool respectively through described mounting hole, one external part of described spool is captiveed joint with actuating device, and its another external part is connected with the emergency brake signal generating means; Described actuating device can drive described spool rotation, and described spool can drive described emergency brake signal generating means action, and described emergency brake signal generating means is exported emergency brake signal to locomotive control.
The aforesaid emergency brake valve that is used for electric locomotive, wherein, described emergency brake signal generating means comprises pressure switch and rotatable parts, described rotatable parts are connected with the external part of described spool, described pressure switch is located at the profile outside of described rotatable parts, described pressure switch comprises housing and drives the transmission device of the electric connecting sheet break-make in the described housing, described housing is connected with described valve body by attaching parts, described transmission device is located between described housing and the described rotatable parts, and described transmission device and described rotatable parts connect.
The aforesaid emergency brake valve that is used for electric locomotive, wherein, described rotatable parts are disc wheel, described transmission device comprises bearing, connecting rod, runner and spring, described bearing is installed in described housing on the end face of described disc wheel one side, one end and the described bearing of described connecting rod are hinged, its other end and described runner articulate, described runner rollably contacts with described disc wheel, on the outer rim of described disc wheel, offer a groove that can hold described runner at least, one end of described spring is fixed in described connecting rod and extends in the described housing, and be connected with the electric connecting sheet in the described housing, by being switched on or switched off of the electric connecting sheet in the described housing of the telescopic drive of spring.
The aforesaid emergency brake valve that is used for electric locomotive wherein, offers two described grooves on the outer rim of described disc wheel, described two grooves are symmetrical arranged along the line of centers of described disc wheel.
The aforesaid emergency brake valve that is used for electric locomotive, wherein, described rotatable parts are cam, described cam is connected with the external part of described spool, described transmission device comprises bearing, connecting rod, runner and spring, described bearing is installed in described housing on the end face of described cam one side, one end and the described bearing of described connecting rod are hinged, its other end and described runner articulate, described cam rollably contacts with described runner, one end of described spring is fixed in described connecting rod and extends in the described housing, and is connected with electric connecting sheet in the described housing, by being switched on or switched off of the electric connecting sheet in the described housing of the telescopic drive of spring.
The aforesaid emergency brake valve that is used for electric locomotive wherein, is provided with protective cover in the outside of described housing.
The aforesaid emergency brake valve that is used for electric locomotive, wherein, in described valve body both sides, be respectively equipped with end cap corresponding to two external parts of described spool, described end cap by bolt on described valve body, two external parts of described spool run through its pairing end cap respectively, are respectively equipped with seal ring between described end cap and described spool.
The aforesaid emergency brake valve that is used for electric locomotive, wherein, described actuating device is a L type handle, one end of described L type handle wears and the outside being fixed in the external part of described spool one side and extending to this external part forms a convex extension part, on the end cap that described handle one side is set, be provided with stop part, described stop part is the annular protrusion spare with breach, and described convex extension part can be located in the breach of described annular protrusion spare around the external part reciprocally swinging of described spool.
The aforesaid emergency brake valve that is used for electric locomotive, wherein, the cast iron structure that described valve body is formed in one.
The aforesaid emergency brake valve that is used for electric locomotive wherein, offers the guide groove that matches with described runner on the outline of described rotatable parts.
Compared with prior art, the utlity model has following characteristics and advantage:
1, the utility model is by the emergency brake signal generating means, in emergency braking, transmit emergency brake signal to locomotive control, make locomotive control can in time learn the information of locomotive emergency braking, avoid because of not learning in time that the locomotive emergency braking causes misoperation, cause the damage of equipment, even the situation of operating accident takes place.
2, valve body of the present utility model adopts cast iron materials and one-step casting moulding, compares with the valve body of available technology adopting stainless steel material, has improved the structural strength of valve body, has reduced manufacturing cost, and maintenance cycle is long.
3, the utility model offers two symmetrically arranged grooves on the outer rim of disc wheel, in rotation process, guarantees to have at least a groove to cooperate with the contraposition between the runner at disc wheel, has simplified mounting process simultaneously, has improved the efficiency of assembling of disc wheel.
4, the utility model is provided with seal ring between described end cap and described spool, makes to have good sealing effectiveness between end cap and the spool.
5, the utility model is being provided with stop part near on the end cap of described handle one side, plays the effect that the described handle 3 of restriction rotates, and has the effect of accurate position fixing handle position.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein,
Fig. 1 is used for the main TV structure scheme drawing of the emergency brake valve of electric locomotive for the utility model;
Fig. 2 is used for the cross-sectional side structural representation of the emergency brake valve of electric locomotive for the utility model;
Fig. 3 is the structural representation of emergency brake signal generating means of the present utility model;
Fig. 4 is another structural representation of emergency brake signal generating means of the present utility model;
Fig. 5 is the cross-sectional view of overlooking of valve body of the present utility model;
Fig. 6 is the structural representation of end cap of the present utility model.
Among the figure: the 1-valve body; The 2-spool; The 3-handle; The 4-gas passage; 5-emergency brake signal generating means; The 51-disc wheel; The 52-pressure switch; The 53-housing; The 54-bearing; The 55-connecting rod; The 56-spring; The 57-runner; The 58-groove; The 6-end cap; The 7-seal ring; The 8-stop part; The 9-protective cover; The 10-cam; The 11-screw; The 12-mounting hole; The 13-mounting hole; The 14-external part; The 15-external part.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.
Please refer to Fig. 1,2,5, Fig. 1 is used for main TV structure scheme drawing, the side direction cross-sectional view of the emergency brake valve of electric locomotive for the utility model respectively, and valve body of the present utility model overlook cross-sectional view.As shown in the figure, the emergency brake valve that is used for electric locomotive of the present utility model, comprise valve body 1, spool 2 and actuating device, in this enforcement, this actuating device is a L type handle 3, but the utility model also is not limited thereto, and also can adopt other mechanical systems, can drive spool 2 rotations as long as guarantee actuating device.Be provided with the gas passage 4 of axial perforation in the described valve body 1, correspondence is provided with two mounting holes 12,13 on the sidewall of described valve body 1, described mounting hole 12,13 connects the described spool 2 of described gas passage 4 (as shown in Figure 5) respectively and is installed in the described gas passage 4, and the orthogonal axe of the axis of spool and gas passage.Radially be provided with on the described spool 2 and can connect or the osed top through hole with described gas passage 4, described spool 2 along the axis of spool through described mounting hole 12,13 outsides that extend to described valve body 1 to two ends respectively form two external parts 14,15, one external part 14 of described spool 2 is captiveed joint with described handle 3, under the effect of external force, handle 3 can rotate along A direction among Fig. 1, and then to drive spool 2 be that centre of gration rotates in gas passage 4 with the axis of spool 2, connect or locking with control gaseous passage 4, thereby reach the unlatching of control emergency brake valve or the effect of closing.In the utility model, another external part 15 of described spool 2 is connected with emergency brake signal generating means 5.Described handle 3 can drive described spool along A direction rotation among Fig. 1, described handle 3 drives described spool 2 rotations, when described spool rotates to described through hole and described gas passage when connecting, described spool 2 drives described emergency brake signal generating means 5 actions, generate emergency brake signal, and export emergency brake signal to locomotive control by external circuits.Like this, make locomotive control can in time learn the information of locomotive emergency braking, avoid causing the damage of equipment, even the situation of operating accident takes place because of not learning in time that the locomotive emergency braking causes misoperation.
As a kind of optional embodiment of the utility model, please refer to Fig. 3, be the structural representation of emergency brake signal generating means of the present utility model.As shown in Figure 3, described emergency brake signal generating means comprises pressure switch 52 and rotatable parts, and in the present embodiment, described rotatable parts are disc wheel 51, described rotatable parts are connected with the external part 15 of described spool 2, make disc wheel 51 rotate with spool 2.Preferably, as shown in Figure 2, described disc wheel 51 is captiveed joint with the external part 15 of described spool 2 by the screw 11 that runs through described disc wheel 51 centers, to guarantee disc wheel 51 and spool 2 bonded assembly firm reliabilities.Wherein, described pressure switch 52 is located at the profile outside of described rotatable parts, described pressure switch 52 comprises housing 53 and transmission device, described housing 53 is affixed by attaching parts 59 and described valve body 1, described transmission device is located between described housing 53 and the described rotatable parts, and described transmission device and described disc wheel 51 connect.Drive described disc wheel 51 by spool 2 and rotate, and the break-make of the electric connecting sheet in described transmission device drives described housing, to export emergency brake signal to locomotive control.
As a kind of optional embodiment of the utility model, as shown in Figure 3, in the present embodiment, described transmission device comprises bearing 54, connecting rod 55, runner 57 and spring 56, described bearing 54 is installed in described housing 53 on the end face of described disc wheel 51 1 sides, one end and the described bearing 54 of described connecting rod 55 are hinged, make that connecting rod 55 can be around these bearing 54 swings; The other end of described connecting rod 55 articulates by pivot and described runner 57, makes that runner 57 can be around this pivot rotation.Described runner 57 rollably contacts with described disc wheel 51.On the outer rim of described disc wheel 51, offer a groove 58 that can hold described runner 57 at least, make described runner 57 can be embedded in the described groove 58.One end of described spring 56 is fixed in described connecting rod 55 and extends in the described housing 53, and be connected with the electric connecting sheet in the described housing 53, by being switched on or switched off of the electric connecting sheet in the described housing 53 of the telescopic drive of spring 56, thereby the generation emergency brake signal is to export this emergency brake signal to locomotive control.Wherein, the process of concrete annexation in spring 56 and the housing 53 between the electric connecting sheet and generation emergency brake signal is known technology, is not described in detail at this.
As the another kind of optionally embodiment of the utility model, as shown in Figure 1, 2, in described valve body 1 both sides, be respectively equipped with end cap 6 corresponding to two external parts 14,15 of described spool 2, described end cap 6 by bolt on described valve body 1, two external parts 14,15 of described spool 2 run through its pairing end cap 6 respectively and extend to the outside of this end cap 6, make two external parts 14,15 to be connected with handle 3 and disc wheel 51 respectively.Between described end cap 6 and described spool 1, be respectively equipped with seal ring 7, make to have good sealing effectiveness between end cap 6 and the spool 1.
As the another kind of optionally embodiment of the utility model, as shown in Figure 1, one end of described L type handle wears and the outside being fixed in the external part 14 of described spool 2 one sides and extending to this external part forms a convex extension part, and captives joint with described spool 2 by pin.Please refer to Fig. 6, be the structural representation of end cap of the present utility model.As shown in Figure 6, on the end cap 6 that described handle 3 one sides are set, be provided with stop part 8.In the present embodiment, described stop part 8 is for having the annular protrusion spare of breach, described convex extension part can be in the breach of described annular protrusion spare around external part 14 reciprocally swingings of described spool 2, thereby the anglec of rotation of control handle.But the utility model also is not limited thereto, as long as stop part can play the position-limiting action to handle.For example: described stop part 8 can also be arranged on two columns with certain intervals or the taper projection piece on the convex extension part swinging track of described handle 3, the convex extension part of described handle 3 can be between two columns or taper projection piece around external part 14 reciprocally swingings of described spool 2, thereby reach the effect of the anglec of rotation of control handle.
Because disc wheel 51 only offers a groove 58, and the rotational angle of disc wheel 51 is restricted (because the rotation of handle 3 is subjected to the cause of stop part 8 restrictions), thereby when the component location guide plate wheel, for the groove 58 that guarantees disc wheel 51 can match with runner 57, the groove 58 that just need make disc wheel 51 has so just increased the complexity and the installation difficulty of erection work near runner 57.In order to simplify mounting process, to reduce installation difficulty, improve installation effectiveness, as another optional embodiment of the utility model, as shown in Figure 3, offer two described grooves 58 on the outer rim of described disc wheel 51, described two grooves 58 are symmetrical arranged along the line of centers of described disc wheel 51.Like this, when disc wheel 51 is installed, has a groove 58 at least near runner 57, thereby guarantee in disc wheel 51 rotation processes, groove 58 cooperates with contraposition between the runner 57.
Preferred embodiment a kind of as the utility model, as shown in Figure 3, the cross section of described groove 58 is in the shape of the letter V, in order to hold described runner 57.But the utility model also is not limited thereto, and for example, the cross section of described groove 58 can also be circular arc or other suitable shape, as long as can play the effect of holding runner 57, and guarantees that runner 57 can get final product along the outer rim rolling of disc wheel 51.
As the utility model another preferred embodiment, offer guide groove on the outline of described disc wheel 51, described guide groove can match with runner 57, thereby guides described runner 57 to match with described disc wheel 51.
As the utility model another preferred embodiment, shown in Fig. 2,3, be provided with protective cover 9 in the outside of the housing 53 of described pressure switch 52, prevent that extraneous dust and sewage from invading enclosure interior, play the effect of protection, and prolonged the service life of pressure switch.
As the utility model another preferred embodiment, the cast iron structure that described valve body 1 is formed in one.Because valve body 1 adopts cast iron materials and one-step casting moulding, thereby has improved the structural strength of valve body, has reduced manufacturing cost.
Principle of work of the present utility model is: as shown in Figure 1, when the electric locomotive cruising, the gas passage 4 in the emergency braking valve body 1 is in sealing setting with the through hole of spool 2, and emergency brake valve is in closed state.At this moment, the runner 57 of transmission device is resisted against under the effect of spring 56 in the groove 58 of disc wheel 51 just, and spring 56 is positioned at maximum stretch position.Like this, when spring 56 is positioned at maximum stretch position, electric connecting sheet a, a ' of pressure switch are in conducting state, and electric connecting sheet b, b ' are in off-state, and pressure switch is to the locomotive control output normal run signal of locomotive (non-emergent braking quotation marks).When locomotive meets with emergency case, when needing emergency brake, utilize external force to pull handle 3, handle 3 drives spool 2 and rotates in gas passage 4.When handle 3 drive spools 2 rotate to assigned position, gas passage 4 is in breakthrough status with the through hole of spool 2, because an end of gas passage 4 is communicated with the brake pipe of locomotive, the other end and atmosphere communicate, at this moment, the pressurized air in the brake pipe derives by gas passage 4, and pressurized air sharply reduces pressure, according to the energy brake principle, produce the emergency braking effect.In addition, as shown in Figure 3, when spool 2 rotates, drive disc wheel 51 and rotate together, make runner 57 be separated with the groove 58 of disc wheel 51 gradually, and roll relatively along the arc surface of disc wheel 51.Like this, the arc surface of disc wheel 51 is exerted pressure to transmission device, make spring 56 be compressed, electric connecting sheet a, a ' in the driving downforce switch case 53 of spring 56 disconnects, and electric connecting sheet b, b ' conducting, produce the emergency brake signal, pressure switch is to locomotive control output emergency brake signal.The break-make of the stretching by spring 56 and the electric connecting sheet of compression control pressure switch and pressure switch are known technology by external circuits to the locomotive control transmission concrete structure that signal adopted, and are not described in detail at this.The utility model is by the emergency brake signal generating means, in emergency braking, transmit emergency brake signal to locomotive control, make locomotive control can in time learn the information of locomotive emergency braking, avoid because of not learning in time that the locomotive emergency braking causes misoperation, cause the damage of equipment, even the situation of operating accident takes place.And valve body of the present utility model adopts cast iron materials and one-step casting moulding, compares with the valve body of available technology adopting stainless steel material, has improved the structural strength of valve body, has reduced manufacturing cost.
As the another kind of optional embodiment of the utility model, please refer to Fig. 4, be another structural representation of emergency brake signal generating means of the present utility model.As shown in Figure 4, described rotatable parts are cam 10, and the center of described cam 10 is connected with the external part 15 of described spool 2.Transmission device in the present embodiment is identical parts with transmission device in the foregoing description, and its concrete structure is not described in detail at this.In the present embodiment, described cam 10 rollably contacts with described runner 57.Like this, when cam 10 rotated with spool 2, cam 10 can promote connecting rod 55 by runner 57 and rotate around bearing 54, and then realizes the flexible of spring 56.Utilize the break-make of the telescopic drive housing 53 interior electric connecting sheets of spring 56, to send the emergency brake signal to locomotive control.But the structure of the emergency brake signal generating means of utility model also is not limited thereto, as long as when rotating described handle when driving described spool and rotating, described spool can drive described emergency brake signal generating means action, transmits emergency brake signal to locomotive control and gets final product.
Other structures, effect and the principle of work of present embodiment is identical with aforementioned each embodiment, no longer is repeated in this description at this.
The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (10)
1. emergency brake valve that is used for electric locomotive, comprise valve body, spool and actuating device, be provided with the gas passage of axial perforation in the described valve body, on the sidewall of described valve body, be provided with the mounting hole that connects described gas passage, described spool is installed in the described gas passage by described mounting hole, and the axis of described spool and the orthogonal axe of gas passage, radially be provided with on the described spool and can connect or the osed top through hole with described gas passage, it is characterized in that, described spool forms two external parts to the outside that two ends extend to described valve body along the axis of described spool respectively through described mounting hole, one external part of described spool is captiveed joint with actuating device, and its another external part is connected with the emergency brake signal generating means; Described actuating device can drive described spool rotation, and described spool can drive described emergency brake signal generating means action, and described emergency brake signal generating means is exported emergency brake signal to locomotive control.
2. the emergency brake valve that is used for electric locomotive as claimed in claim 1, it is characterized in that, described emergency brake signal generating means comprises pressure switch and rotatable parts, described rotatable parts are connected with the external part of described spool, described pressure switch is located at the profile outside of described rotatable parts, described pressure switch comprises housing and drives the transmission device of the electric connecting sheet break-make in the described housing, described housing is connected with described valve body by attaching parts, described transmission device is located between described housing and the described rotatable parts, and described transmission device and described rotatable parts connect.
3. the emergency brake valve that is used for electric locomotive as claimed in claim 2, it is characterized in that, described rotatable parts are disc wheel, described transmission device comprises bearing, connecting rod, runner and spring, described bearing is installed in described housing on the end face of described disc wheel one side, one end and the described bearing of described connecting rod are hinged, its other end and described runner articulate, described runner rollably contacts with described disc wheel, on the outer rim of described disc wheel, offer a groove that can hold described runner at least, one end of described spring is fixed in described connecting rod and extends in the described housing, and be connected with the electric connecting sheet in the described housing, by being switched on or switched off of the electric connecting sheet in the described housing of the telescopic drive of spring.
4. the emergency brake valve that is used for electric locomotive as claimed in claim 3 is characterized in that, offers two described grooves on the outer rim of described disc wheel, and described two grooves are symmetrical arranged along the line of centers of described disc wheel.
5. the emergency brake valve that is used for electric locomotive as claimed in claim 2, it is characterized in that, described rotatable parts are cam, described cam is connected with the external part of described spool, described transmission device comprises bearing, connecting rod, runner and spring, described bearing is installed in described housing on the end face of described cam one side, one end and the described bearing of described connecting rod are hinged, its other end and described runner articulate, described cam rollably contacts with described runner, one end of described spring is fixed in described connecting rod and extends in the described housing, and be connected with the electric connecting sheet in the described housing, by being switched on or switched off of the electric connecting sheet in the described housing of the telescopic drive of spring.
6. as each described emergency brake valve that is used for electric locomotive in the claim 2 to 5, it is characterized in that, be provided with protective cover in the outside of described housing.
7. as each described emergency brake valve that is used for electric locomotive in the claim 1 to 5, it is characterized in that, in described valve body both sides, be respectively equipped with end cap corresponding to two external parts of described spool, described end cap by bolt on described valve body, two external parts of described spool run through its pairing end cap respectively, are respectively equipped with seal ring between described end cap and described spool.
8. the emergency brake valve that is used for electric locomotive as claimed in claim 7, it is characterized in that, described actuating device is a L type handle, one end of described L type handle wears and the outside being fixed in the external part of described spool one side and extending to this external part forms a convex extension part, on the end cap that described handle one side is set, be provided with stop part, described stop part is the annular protrusion spare with breach, described convex extension part can around the external part reciprocally swinging of described spool be located in the breach of described annular protrusion spare.
9. as each described emergency brake valve that is used for electric locomotive in the claim 1 to 5, it is characterized in that the cast iron structure that described valve body is formed in one.
10. as each described emergency brake valve that is used for electric locomotive in the claim 3 to 5, it is characterized in that, offer the guide groove that matches with described runner on the outline of described rotatable parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202946941U CN201761484U (en) | 2010-08-13 | 2010-08-13 | Emergency brake valve for electrical locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202946941U CN201761484U (en) | 2010-08-13 | 2010-08-13 | Emergency brake valve for electrical locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201761484U true CN201761484U (en) | 2011-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202946941U Expired - Fee Related CN201761484U (en) | 2010-08-13 | 2010-08-13 | Emergency brake valve for electrical locomotive |
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| CN (1) | CN201761484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371989A (en) * | 2010-08-13 | 2012-03-14 | 中国北车集团大同电力机车有限责任公司 | Emergency brake valve for electric locomotive |
-
2010
- 2010-08-13 CN CN2010202946941U patent/CN201761484U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371989A (en) * | 2010-08-13 | 2012-03-14 | 中国北车集团大同电力机车有限责任公司 | Emergency brake valve for electric locomotive |
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