CN102717814A - Locomotive cock - Google Patents
Locomotive cock Download PDFInfo
- Publication number
- CN102717814A CN102717814A CN2012102251791A CN201210225179A CN102717814A CN 102717814 A CN102717814 A CN 102717814A CN 2012102251791 A CN2012102251791 A CN 2012102251791A CN 201210225179 A CN201210225179 A CN 201210225179A CN 102717814 A CN102717814 A CN 102717814A
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- Prior art keywords
- chamber
- push rod
- hollow stem
- locomotive
- control
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 244000273618 Sphenoclea zeylanica Species 0.000 claims description 41
- 208000002925 dental caries Diseases 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention discloses a locomotive cock which is provided with an air source connector communicated with an air source and a control connector communicated with a wind consuming component. Three air chambers of an air source chamber, a control chamber and an exhaust chamber are arranged in a cock valve base, the air source chamber is communicated with the air source connector, the control chamber is communicated with the control connector, and the exhaust chamber is communicated with the air through an exhaust connector. A hollow rod is arranged in a connector between the exhaust chamber and the air source chamber, and hollow rod and the connector are sealed in radial mode, a connector between the air source chamber and the control chamber is sealed by the end face of the hollow rod, an ejector rod which is coaxial with the hollow rod is arranged in the control chamber, an opening of a through hole in the hollow rod is sealed by the ejector rod under the condition that the lower end face of the ejector rod butts against the hollow rod, and a return spring is respectively arranged on the ejector rod and the hollow rod. A cam mechanism is used for driving a hollow rod structure to control connection and disconnection of an air path, and the locomotive cock is small in knob operating force and convenient to operate. The hollow rod adopts end cover type seal, and the locomotive cock is simple in structure, capable of improving sealing performance and service life of components and suitable for cocks of wind consuming components of a locomotive.
Description
Technical field
The present invention relates to locomotive plug gate technique field.
Background technology
For realizing the various controllable function of locomotive air pipeline system, pipeline need carry out break-make control, and China's locomotive pipeline system at present adopts mechanical cut out cock to carry out manual control.Existing locomotive pipeline control Sai Menduo adopts pure mechanical ball core cut out cock, control handle direct control spool, but have following defective:
1, plug door core component is the ball core, and this ball core need seal with valve body through Rubber Parts, needs the ball core to rotate simultaneously and controls opening and closure of plug gate open road.The rotation of these parts of operating handle direct control is overcome friction, needs more just can the plug door opened and close, inconvenient operation.
2, because the ball core often rotates, be prone to cause caulking gum spare stressed, work long hours to be prone to produce and leak.
Summary of the invention
The technical matters that the present invention solved provides a kind of easy to operate locomotive plug door.
The technical scheme that the present invention adopts is; Locomotive plug door, Sai Men be provided with the gas source interface that is connected with source of the gas and with the control interface that is connected with wind part, three air cavitys that comprise in the plug family of power and influence seat; Source of the gas chamber, control chamber and discharge chamber; The source of the gas chamber is communicated in gas source interface, and control chamber is communicated in control interface, and discharge chamber is through exhaust port and atmosphere; Be provided with hollow stem in the interface between discharge chamber and the source of the gas chamber, hollow stem and interface adopt radial seal; Interface between source of the gas chamber and the control chamber is by the hollow stem side seal; Be provided with the push rod coaxial with hollow stem in the control chamber, the push rod lower surface contacts under the state of hollow stem, and the via openings in the hollow stem is sealed by push rod; The push rod upper end extends outside the control chamber and is connected in operating mechanism; Be supported with first retracing spring on the hollow stem, be supported with second retracing spring on the push rod.
The push rod sidewall seals with control chamber mutually.
Said operating mechanism comprises cam, and the cam sidewall is provided with breach, and camshaft line is perpendicular to the push rod sense of motion.
Said cam face is provided with the groove that radially extends, and is inserted with the knob connecting rod in the groove, and the knob connecting rod is connected in operation knob.
Said push rod lower end is provided with blind hole, and second retracing spring, one end inserts blind hole, and passes the through hole of hollow stem, and the other end contacts on the rear side housing of valve seat bottom.
The hole wall of said push rod lower end expands outwardly the formation enlarging.
Said hollow stem vertical section is the T type, between T type two arms and the valve seat first retracing spring is installed.
The T type upper surface of said hollow stem is provided with annular sealing strip, and sealing band forms side seal near the interface between peripheral edge portion and source of the gas chamber and the discharge chamber, and sealing band inner edge diameter is less than the diameter of push rod lower surface outer most edge.
The invention has the beneficial effects as follows that adopt the break-make of cam mechanism driving hollow stem structure control gas circuit, the knob-operated dynamics is little, is convenient to operation; Hollow stem adopts the sealing of end cover formula, the simple in structure raising parts sealing property and service life; Sai Men needn't be installed on the pipeline axis, can centralized arrangement in cabinet, be convenient to operation and maintenance.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is along B-B direction cutaway view among Fig. 1.
Be labeled as among the figure: 1-mounting interface, 21-control interface, 22-gas source interface, 23-exhaust port, 3-operation knob; The 4-front end cover, 5-knob connecting rod, 6-cam, 7-push rod, 8-valve seat; 9-second retracing spring, 10-first retracing spring, 11-hollow stem, 12-rear side housing; The 15-orienting sleeve, 16-control chamber, 17-source of the gas chamber, 18-discharge chamber.
The specific embodiment
Locomotive plug door of the present invention, three air cavitys that comprise in the plug family of power and influence seat 8, source of the gas chamber 17, control chamber 16 and discharge chamber 18, source of the gas chamber 17 is communicated in gas source interface 22, and gas source interface 22 is connected locomotive wind regime pipeline; Control chamber 16 is communicated in control interface 21, deliver a gas to use wind part, needs the wind part of using of compressed gas-driven like bow-lifting device, loudspeaker, sanding device, rim lubricating device, brake unit, line circuit breaker, reservoir etc.; Discharge chamber 18 is through exhaust port 23 and atmosphere; Be provided with hollow stem 11 in the interface between discharge chamber 18 and the source of the gas chamber 17, hollow stem 11 adopts radial seal that two air cavitys are isolated with interface; Simultaneously, the interface between source of the gas chamber 17 and the control chamber 16 is by hollow stem 11 side seals; Be provided with the push rod 7 coaxial with hollow stem 11 in the control chamber 16, push rod 7 lower surfaces contact under the state of hollow stem 11, and the via openings in the hollow stem 11 are by push rod 7 sealings; Push rod 7 upper ends extend outside the control chamber 16 and are connected in operating mechanism, and the operating mechanism that the present invention adopts is a cam 6, is used to control the up-and-down movement of push rod 7; Be supported with first retracing spring 10 on the hollow stem 11, be supported with second retracing spring 9 on the push rod 7.
When cam 6 breach are downward; Push rod 7 is in most significant bit under the support of second retracing spring 9; Its lower surface and hollow stem 11 upper ends are separated, and the through hole in the hollow stem 11 is communicated with discharge chamber 18 and control chamber 16, and this moment, hollow stem 11 also was in most significant bit under the support of first retracing spring 10; Source of the gas chamber 17 and discharge chamber 18 is isolated, also that source of the gas chamber 17 and control chamber 16 is isolated simultaneously.This state is closed condition for the gas pipe line with wind part connects atmosphere.
Spend when cam 6 rotates counterclockwise 90 once more, control chamber 16 is connected with discharge chamber 18, closes and uses wind part.
Rotating cam 6 for ease, cam 6 end faces are provided with the groove that radially extends, and are inserted with knob connecting rod 5 in the groove, and knob connecting rod 5 is connected in operation knob 3.Operation knob 3 to open the position downward corresponding to cam 6 breach, promptly towards the position of push rod 7, the position that cam 6 breach break away from push rod 7 fully is close stance, indicate clear, easy operating.In order to control the up-and-down movement of push rod 7, its operating mechanism can also adopt alternate manner, and for example most significant bit and the lowest order at push rod 7 all is provided with a block, launches the block of differing heights according to the switch needs.Can certainly adopt other simple mechanism, all come from the purpose of the present invention for control push rod 7 up-and-down movements.
Leak tightness between its lower surface and hollow stem 11 upper surfaces when pressing down in order to improve push rod 7; Hollow stem 11 upper surfaces are provided with annular sealing strip; Sealing band forms side seal near the interface between peripheral edge portion and source of the gas chamber 17 and the discharge chamber 18; Sealing band inner edge diameter is less than the diameter of push rod 7 lower surface outer most edge, and just suppress in sealing band push rod 7 lower surfaces like this.Push rod 7 lower ends are provided with blind hole, and blind hole at first can be used as the guiding of second retracing spring 9, the usefulness of location, and next forms thin and narrow hole wall, and little with the sealing band area of contact, pressure is big, improve sealing effectiveness.Hole wall expands outwardly the formation enlarging, makes both pressings more firm, avoids both to leak gas because of vibration makes sealing surface produce the slit.For realizing both sealings, also can adopt alternate manner, like a bonding circle seal ring on the push rod 7 lower end hole walls, perhaps hollow stem 11 upper ends form boss and insert push rod 7 lower ends etc., but all are not so good as specific embodiment easy operating of the present invention and are convenient to maintenance.
The mounting means of first retracing spring 10 and second retracing spring 9 also can adopt the mode outside the specific embodiment of the invention to realize, so long as get final product for pushing tow hollow stem 11 and push rod 7 to its most significant bit.For the up-and-down movement that makes push rod 7, hollow stem 11 does not depart from, be set with orienting sleeve 15 on the hollow stem, the parts of identical function in like manner also can be set on the push rod 7.
Claims (8)
1. locomotive plug door; Sai Men be provided with the gas source interface (22) that is connected with source of the gas and with the control interface that is connected with wind part (21); It is characterized in that: three air cavitys that comprise in plug family of power and influence's seat (8), source of the gas chamber (17), control chamber (16) and discharge chamber (18), source of the gas chamber (17) are communicated in gas source interface (22); Control chamber (16) is communicated in control interface (21), and discharge chamber (18) is through exhaust port (23) and atmosphere; Be provided with hollow stem (11) in the interface between discharge chamber (18) and source of the gas chamber (17), hollow stem (11) adopts radial seal with interface; Interface between source of the gas chamber (17) and the control chamber (16) is by hollow stem (11) side seal; Be provided with the push rod (7) coaxial with hollow stem (11) in the control chamber (16), push rod (7) lower surface contacts under the state of hollow stem (11), and the via openings in the hollow stem (11) is sealed by push rod (7); Push rod (7) upper end extends outside the control chamber (16) and is connected in operating mechanism; Be supported with first retracing spring (10) on the hollow stem (11), be supported with second retracing spring (9) on the push rod (7).
2. locomotive plug door as claimed in claim 1 is characterized in that: push rod (7) sidewall seals with control chamber (16) mutually.
3. locomotive plug door as claimed in claim 1 is characterized in that: said operating mechanism comprises cam (6), and cam (6) sidewall is provided with breach, and cam (6) axis normal is in push rod (7) sense of motion.
4. locomotive plug door as claimed in claim 3 is characterized in that: said cam (6) end face is provided with the groove that radially extends, and is inserted with knob connecting rod (5) in the groove, and knob connecting rod (5) is connected in operation knob (3).
5. locomotive plug door as claimed in claim 1; It is characterized in that: said push rod (7) lower end is provided with blind hole; Second retracing spring (9) one ends insert blind hole, and pass the through hole of hollow stem (11), and the other end contacts on the rear side housing (12) of valve seat (8) bottom.
6. locomotive plug door as claimed in claim 5 is characterized in that: the hole wall of said push rod (7) lower end expands outwardly the formation enlarging.
7. like claim 5 or 6 described locomotive plug doors, it is characterized in that: said hollow stem (11) vertical section is the T type, between T type two arms and the valve seat (8) first retracing spring (10) is installed.
8. locomotive plug door as claimed in claim 6; It is characterized in that: the T type upper surface of said hollow stem (11) is provided with annular sealing strip; Sealing band forms side seal near the interface between peripheral edge portion and source of the gas chamber (17) and the control chamber (16), and sealing band inner edge diameter is less than the diameter of push rod (7) lower surface outer most edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102251791A CN102717814A (en) | 2012-06-30 | 2012-06-30 | Locomotive cock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102251791A CN102717814A (en) | 2012-06-30 | 2012-06-30 | Locomotive cock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102717814A true CN102717814A (en) | 2012-10-10 |
Family
ID=46943731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102251791A Pending CN102717814A (en) | 2012-06-30 | 2012-06-30 | Locomotive cock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102717814A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2106759U (en) * | 1991-03-30 | 1992-06-10 | 薛强 | Adjustable self-lock for angle cocks |
| US5771933A (en) * | 1996-02-15 | 1998-06-30 | Nabco Ltd. | Three-position solenoid valve |
| CN101531184A (en) * | 2009-03-25 | 2009-09-16 | 南京航空航天大学 | Rail transportation vehicle electropneumatic brake unit based on piezoelectric proportional valve |
| CN201544949U (en) * | 2009-11-12 | 2010-08-11 | 上海国之鼎铁路机电有限公司 | Vehicle-used hemispherical angle cock with elastic handlebar |
-
2012
- 2012-06-30 CN CN2012102251791A patent/CN102717814A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2106759U (en) * | 1991-03-30 | 1992-06-10 | 薛强 | Adjustable self-lock for angle cocks |
| US5771933A (en) * | 1996-02-15 | 1998-06-30 | Nabco Ltd. | Three-position solenoid valve |
| CN101531184A (en) * | 2009-03-25 | 2009-09-16 | 南京航空航天大学 | Rail transportation vehicle electropneumatic brake unit based on piezoelectric proportional valve |
| CN201544949U (en) * | 2009-11-12 | 2010-08-11 | 上海国之鼎铁路机电有限公司 | Vehicle-used hemispherical angle cock with elastic handlebar |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |