CN203713903U - Ball type angle cock capable of preventing abnormal closing - Google Patents
Ball type angle cock capable of preventing abnormal closing Download PDFInfo
- Publication number
- CN203713903U CN203713903U CN201420122674.4U CN201420122674U CN203713903U CN 203713903 U CN203713903 U CN 203713903U CN 201420122674 U CN201420122674 U CN 201420122674U CN 203713903 U CN203713903 U CN 203713903U
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- CN
- China
- Prior art keywords
- cock
- plunger
- ball type
- type angle
- closing
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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.)
- Expired - Fee Related
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Abstract
The utility model relates to a ball type angle cock capable of preventing abnormal closing. The ball type angle cock comprises a cock body, a cock core, a pipe connector, a sealing gasket, a cock plug, a supporting spring and an opening and closing handle, wherein a cock core locking mechanism which is composed of a plunger cover plate, a reset spring, a plunger, a plunger sleeve and an O-shaped rubber ring is additionally arranged on the portion, close to a downward-bent air outlet duct, of the outer surface of the cock body. A through air duct hole is drilled inside the cock body, the plunger cover plate and the plunger sleeve, and a hole matched with an end of the plunger is drilled in the cylindrical surface at the upper end of the cock core. The ball type angle cock is simple in structure and low in manufacturing and maintenance cost, and the advantages of an existing ball type angle cock are kept; the ball type angle cock has the advantages that both a running train and a train which is restarted after stopping halfway can be prevented from being abnormally closed, and therefore train operation accidents can be effectively prevented.
Description
Technical field
The utility model relates to a kind of airduct connection fittings of railroad train brake system, relates in particular to the safety device that prevents that train coupling cock from closing.
Background technology
Train is dispatched a car after normal in service or stop off again; the angle cock of brake system often can run into that nature is closed or people for the improper phenomenon of closing such as closing; such as; operating freight train; because the rope of restraint of loads is wound around cock handle; angle cock is pulled to close stance, or after train stops midway, has people's malice to do and destroy and close.If trainman or row inspection operating personnel can not find in time and correctly be disposed, can cause operating rolling stock brake out of control, because losing, braking force overrunning of signal even clashes train, off-line, the great train operation accident such as overturn, safety of railway traffic is constituted a serious threat, bring safely massive losses to national wealth and people's life.
For many years, also common occurrence for the modification scheme of the anti-pass of train coupling cock, can be divided into two kinds of solution thinkings but be summed up: the first adopts mechanical means to be locked plug core after angle cock is opened; It two is to utilize the blast in train main brake pipe to be locked plug core.Once but the former drawback is to have people to sabotage plug core lockout mechanism to carry out closed folding door by force, if the blast in train main brake pipe does not leak, trainman is subtle, train still can normally be dispatched a car and normally operation, and when having arrived train and needing brake snub or stopping brake, consequence is just hardly imaginable.Also there are some problems in the latter's modification scheme, in Chinese utility model patent book CN2254052Y, a kind of train angle cock open-and-close preventing device is disclosed, owing to setting up piston valve core lockout mechanism in the horizontal inlet channel of angle cock, the duct resistance of cock of making to flow through increases, what extended train main brake pipe normally fills air-bled time, affects traffic safety.A kind of shut-proof device of rolling stock angle cock is disclosed in Chinese utility model patent book CN2212538Y, sidewall at cone core angle cock is set up a pneumatic bolt, the end of pneumatic bolt is inserted in the valve pool at cone core middle part, because the elastic force design of retracing spring is too much, this cock only at engine brake valve in driving position, alleviate position or just rise and prevent improper closing function when neutral position, and inoperative in the time of service application position or emergency position.
But this cone core angle cock is eliminated, ball type angle cock is used widely in rolling stock, compared with cone core angle cock, has good airproof performance, draught area is large, air flow resistance is little, act on the advantages such as flexible.Because the plug core middle part sphere scope of ball type angle cock is narrow, wall thickness is thinner, should not hole thereon or slot again, and therefore, the transformation thinking of using for reference in CN2212538Y utility model specification sheets is impracticable.
Summary of the invention
The utility model object is to overcome above-mentioned defect, provide a kind of simple in structure, minimum to the change of existing ball type angle cock, safe reliability is high prevents improper ball type angle cock of closing.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind ofly prevent improper ball type angle cock of closing, comprise cock body 1, plug core 2, adaptor union 3, packing seal 4, cock screw plug 5, support spring 6, open and close handle 13, wherein, cock body 1 has horizontal inlet channel and reclinate gas off-take, plug core is cylindrical shape in two ends Shang Xia 2, centre portion is the dome shape of external drum, upper end is fixedly mounted with and is opened and closed handle 13 by locating dowel pin 22, and support spring 6 rests are passed through on cock screw plug 5 in lower end.Set up plug core lockout mechanism 7 at cock body 1 outside face above near reclinate gas off-take, this mechanism 7 is made up of plunger cover plate 9, restoring spring 10, plunger 11, plunger sleeve 12 and zero type rubber ring 14, in cock body 1, plunger cover plate 9 and air flue hole 8 mutually connecting of plunger sleeve 12 inner part drilling, bore a hole 21 of matching with plunger 11 ends in the orientation that plug core 2 upper end peripheries are vertical with locating dowel pin 22.
As preferred version, be 6～8mm at cock body 1, plunger cover plate 9 and inner air flue hole 8 diameters that mutually connect of plunger sleeve 12.
As preferred version, hole 21 diameters that match with plunger 11 ends at plug core 2 upper end peripheries are 4～5mm, and the degree of depth is 5mm.
As preferred version, between plunger cover plate 9 and plunger sleeve 12, adopt screw to connect.
As preferred version, integral casting forming between plunger sleeve 12 and cock body 1.
As preferred version, plunger 11 adopts phosphor-copper material to make.
The utility model is set up plug core lockout mechanism at cock body outside face above near reclinate gas off-take, change to existing ball type angle cock is minimum, safe reliability is high, by the elasticity of choose reasonable restoring spring, can realize as long as there is blast to exist in train main brake pipe, angle cock can not people be just the technique effect of pulling.No matter that is to say that engine brake valve, in driving position, alleviation position, neutral position or service application position, all has the improper effect of cutting out that prevents.If really need to close cock, must, by engine brake valve in emergency position, after the thorough emptying of the blast in train main brake pipe, can implement.After train stop off, if people is for attempting closed folding door by force, just can only destroy plug core lockout mechanism, cause that blast in brake pipe leaks, the automatic brake application of train and can not normally dispatching a car.Therefore, ball type angle cock of the present utility model is simple in structure, manufacture maintenance cost is low, both kept original ball type angle cock good airproof performance, draught area is large, air flow resistance is little, act on advantage flexibly, is the beneficial effect that the train of dispatching a car again after operating train or stop off all can not improperly cut out no matter have again.
Brief description of the drawings
Fig. 1 is the overall structure cutaway view of the utility model ball type angle cock.
Fig. 2 is the structural representation of the utility model plug core.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further.
As shown in Figure 1, a kind ofly prevent improper ball type angle cock of closing, comprise cock body 1, plug core 2, adaptor union 3, packing seal 4, cock screw plug 5, support spring 6, open and close handle 13, wherein, cock body 1 has horizontal inlet channel and reclinate gas off-take, set up plug core lockout mechanism 7 at cock body 1 outside face above near reclinate gas off-take, this mechanism 7 is by plunger cover plate 9, restoring spring 10, plunger 11, plunger sleeve 12 and zero type rubber ring 14 form, at cock body 1, air flue hole 8 mutually connecting of plunger cover plate 9 and plunger sleeve 12 inner part drilling, aperture is comparatively suitable between 6～8mm, and length is more short better.Between plunger cover plate 9 and plunger sleeve 12, adopt screw to connect, integral casting forming between plunger sleeve 12 and cock body 1, plunger 11 adopts phosphor-copper material to make.
As shown in Fig. 2, plug core is cylindrical shape in two ends Shang Xia 2, and upper end is fixedly mounted with and is opened and closed handle 13 by locating dowel pin 22, and support spring 6 rests are passed through on cock screw plug 5 in lower end.Centre portion is the dome shape of external drum, and this sphere scope is narrow, and wall thickness is thinner.Bore a hole 21 of matching with plunger 11 ends in the orientation that plug core 2 upper end peripheries are vertical with locating dowel pin 22, aperture is 4～5mm, and the degree of depth is 5mm.
Organize into groups and hang up after locomotive when train completes, all angle cocks all should be in opening, the wind regime being provided by locomotive is in each angle cock flows into the brake pipe of every vehicle, meanwhile, sub-fraction air quantity, in air flue hole flows into the plunger cover plate of plug core lockout mechanism, promotes plunger end and stretches in the hole of plug core and be locked.No matter after this engine brake valve is in driving position, alleviate position, neutral position or service application position, all there is the improper effect of closing that prevents.If really need to close cock, must, by engine brake valve in emergency position, after the thorough emptying of the blast in train main brake pipe, can implement.Plug core lockout mechanism if people is for attempting closed folding door by force, just can only be destroyed after stopping in train way, causes the blast leakage in brake pipe, the automatic brake application of train and can not normally dispatching a car.No matter be the train of dispatching a car again after operating train or stop off, this ball type angle cock all can not improperly be closed, and can effectively prevent the generation of train operation accident.
In industrial and agricultural production other field, the pressure pipeline valve that some are important, also can adopt this improved ball type angle cock to prevent improper closing.
The utility model is not limited to above-mentioned embodiment, in the ken possessing, can also under the prerequisite that does not depart from the utility model aim, make various variations at affiliated technical field those of ordinary skill.
Claims (5)
1. one kind prevents improper ball type angle cock of closing, comprise cock body (1), plug core (2), adaptor union (3), packing seal (4), cock screw plug (5), support spring (6), open and close handle (13), wherein, cock body (1) has horizontal inlet channel and reclinate gas off-take, the upper and lower two ends of plug core (2) are cylindrical shape, centre portion is the dome shape of external drum, upper end is fixedly mounted with and is opened and closed handle (13) by locating dowel pin (22), support spring (6) rest is passed through on cock screw plug (5) in lower end, it is characterized in that: set up plug core lockout mechanism (7) at described cock body (1) outside face near reclinate gas off-take top, plug core lockout mechanism (7) is by plunger cover plate (9), restoring spring (10), plunger (11), plunger sleeve (12) and zero type rubber ring (14) composition, in cock body (1), air flue hole (8) mutually connecting of plunger cover plate (9) and plunger sleeve (12) inner part drilling, bore a hole (21) of matching with plunger (11) end in the orientation that plug core (2) upper end periphery is vertical with locating dowel pin (22).
2. according to claim 1ly prevent improper ball type angle cock of closing, it is characterized in that: inner air flue hole (8) diameter mutually connecting of described cock body (1), plunger cover plate (9) and plunger sleeve (12) is 6～8mm.
3. according to claim 1ly prevent improper ball type angle cock of closing, it is characterized in that: described hole (21) diameter matching with plunger (11) end at plug core (2) upper end periphery is 4～5mm, and the degree of depth is 5mm.
4. according to claim 1ly prevent improper ball type angle cock of closing, it is characterized in that: between described plunger cover plate (9) and plunger sleeve (12), adopt screw to connect.
5. according to claim 1ly prevent improper ball type angle cock of closing, it is characterized in that: integral casting forming between described plunger sleeve (12) and cock body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122674.4U CN203713903U (en) | 2014-03-19 | 2014-03-19 | Ball type angle cock capable of preventing abnormal closing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122674.4U CN203713903U (en) | 2014-03-19 | 2014-03-19 | Ball type angle cock capable of preventing abnormal closing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203713903U true CN203713903U (en) | 2014-07-16 |
Family
ID=51153082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420122674.4U Expired - Fee Related CN203713903U (en) | 2014-03-19 | 2014-03-19 | Ball type angle cock capable of preventing abnormal closing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203713903U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832448A (en) * | 2014-03-19 | 2014-06-04 | 江利国 | Ball core angle cock capable of preventing improper closing |
-
2014
- 2014-03-19 CN CN201420122674.4U patent/CN203713903U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832448A (en) * | 2014-03-19 | 2014-06-04 | 江利国 | Ball core angle cock capable of preventing improper closing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20150319 |
|
| EXPY | Termination of patent right or utility model |