CN210918599U - Emergency exhaust device for railway vehicle - Google Patents
Emergency exhaust device for railway vehicle Download PDFInfo
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- CN210918599U CN210918599U CN201921428240.6U CN201921428240U CN210918599U CN 210918599 U CN210918599 U CN 210918599U CN 201921428240 U CN201921428240 U CN 201921428240U CN 210918599 U CN210918599 U CN 210918599U
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Abstract
The utility model relates to an emergency exhaust device for railway vehicles, an upper internal thread end cover is fixed in an upper mounting hole through screws, a lower internal thread end cover is fixed in a lower mounting hole through screws, a valve core is clamped between the upper internal thread end cover and the lower internal thread end cover, a short limit connecting piece is fixed on a valve body through long screws, a short limit connecting piece is fixed on a panel for an emergency valve through screws, a lock core short shaft penetrates through the panel for the emergency valve and the short limit connecting piece, the lock core short shaft is inserted into the valve core and synchronously drives the valve core to rotate to an unlocking state, a conduction gas circuit is formed between an air inlet pipe, an air vent and an exhaust pipe, the locking device of a pneumatic door system is reset to achieve a door opening state, otherwise, the locking device is a reset state, the emergency exhaust device has the advantages of simple structure, prevention of misoperation of non, the handle operation is changed into the special key operation to prevent misoperation, thereby being beneficial to parametric design of different models and sizes.
Description
Technical Field
The utility model belongs to the technical field of the rail transit technique and specifically relates to a railway vehicle is with urgent exhaust apparatus.
Background
In some domestic railway vehicles at present, when a door of a passenger room or a cab breaks down or opens the door emergently, the door needs to be opened by an emergency exhaust valve which is in a manual operation mode, and gas circuits on two sides of the exhaust valve can be disconnected by rotating a handle; the valve body is of an integral structure, the threaded end cover is screwed into the valve body, the air inlet pipe and the exhaust pipe are connected to two sides of the end cover, the emergency exhaust valve is easy to operate by non-professionals, and the valve body is of an integral structure and is inconvenient to overhaul; the valve body sealing performance is poor, gets into dust and water stain easily, if do not have this device, the pneumatic locking device of door system can't reset when the vehicle meets the trouble and need promptly open the door, and the unable disconnection of door system gas circuit, the door also can't be opened under this condition, and this will lead to serious vehicle operation consequence.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the emergency exhaust device for the railway vehicle has the advantages of simple structure, prevention of misoperation of non-professional personnel, convenience in installation and maintenance and excellent air tightness.
The utility model provides a technical scheme that its technical problem adopted is: an emergency exhaust device for a railway vehicle is provided with a valve body arranged in the vehicle body, a valve core with an air vent and arranged in the valve body, and an emergency valve panel fixed on the vehicle body through screws, wherein the upper end surface and the lower end surface of the valve body are provided with an upper mounting hole and a lower mounting hole;
the valve body is fixed with a short limit connecting piece through a long screw, the panel for the emergency valve is fixed with the short limit connecting piece through a screw, a lock cylinder short shaft penetrates through the panel for the emergency valve and the short limit connecting piece, the lock cylinder short shaft is inserted into the valve core and synchronously drives the valve core to rotate to an unlocking state, a conduction gas circuit is formed among the gas inlet pipe, the vent hole and the gas exhaust pipe, the pneumatic locking device of the door system is reset to achieve a door opening state, and otherwise, the pneumatic locking device is in a reset state.
Furthermore, in order to have multi-sealing element protection and better dustproof sealing performance, an O-shaped ring is arranged at the joint of the panel for the emergency valve and the short limit connecting piece; a panel sealing gasket for the emergency valve is arranged at the joint of the panel for the emergency valve and the vehicle body; o-shaped rings are arranged at the joints of the upper and lower internal thread end covers and the valve body; the connecting part of the lock cylinder short shaft and the valve body is provided with an O-shaped ring short limiting connecting piece, and the connecting part of the O-shaped ring short limiting connecting piece and the valve body is provided with an O-shaped ring; an O-shaped ring is arranged at the joint of the short limiting connecting piece and the panel for the emergency valve; valve core sealing gaskets are arranged at the contact positions of the valve core and the upper and lower internal thread end covers.
Furthermore, a process counter bore is formed in one end face of the short limiting connecting piece, a limiting counter bore is formed in the other end face of the short limiting connecting piece, a through hole is formed between the process counter bore and the limiting counter bore and is communicated with the through hole, a sealing ring groove used for installing a sealing ring is formed in the inner wall of the through hole, a rotating limiting groove within a preset rotating angle range is formed in the bottom face of the limiting counter bore, a limiting plate is arranged on the lock cylinder short shaft, and a protrusion rotating in the rotating limiting groove is formed in the surface, close to the emergency valve panel, of the.
The outer circle edge of the valve core is provided with an arc-shaped notch inserted into the short shaft of the lock cylinder, an inclined upward through air hole is formed in the fourth quadrant of the valve core, an air hole communicated with the atmosphere is formed in the left end face of the valve body, and any end of the through air hole is communicated with the air hole when the valve core rotates.
Furthermore, an emergency exhaust valve indicating label is pasted on the panel for the emergency valve.
The utility model has the advantages that: the utility model has the advantages of simple structure, prevention of non-professional misoperation, convenient installation and maintenance, good air tightness performance and the like. The valve core is rotated by rotating the train universal key to realize the communication of the air inlet pipe and the air outlet pipe, so that the pneumatic locking device of the train door system is unlocked to achieve the door opening effect. Whole unlocking device is split type mounting structure, connects through the screw between panel, internal thread end cover, the short spacing connecting piece for the emergency valve, and the easy access is maintained, is changed into special key operation by the handle operation and prevents the maloperation, is favorable to the parametric design of different model sizes, has the protection of multichannel sealing member simultaneously, has better dustproof sealing nature.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a schematic structural view of the present invention A-A;
FIG. 3 is a schematic structural view of the present invention B-B;
FIG. 4 is a left side view of FIG. 1;
FIG. 5 is a schematic view of the structure of the present invention C-C;
FIG. 6 is a front view of the short limit connector of the present invention;
FIG. 7 is a schematic view of the structure of the present invention, D-D;
FIG. 8 is a front view of the stub shaft of the present invention;
FIG. 9 is a top view of FIG. 8;
FIG. 10 is a left side view of FIG. 8;
fig. 11 is a front view of the cartridge of the present invention;
FIG. 12 is a left side view of FIG. 11;
fig. 13 is a perspective view of the present invention.
In the figure: 1. the emergency valve comprises an emergency valve panel, a valve body, a short limiting connecting piece, an upper internal thread end cover, a lock cylinder short shaft, a panel sealing gasket for the emergency valve, a valve core sealing gasket, an emergency exhaust valve indicating label, a vehicle body, an air inlet pipe, an air outlet pipe, a limiting groove, a protrusion, a circular arc notch, an air vent hole, a lower internal thread end cover, an upper mounting hole, a lower mounting hole, a process counter bore, a limiting counter bore, a through hole, a sealing ring groove, a limiting plate, a through air hole and a limiting plate, wherein the panel for the emergency valve 2, the valve body 3, the short limiting connecting.
Detailed Description
The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 to 13, the emergency exhaust device for a railway vehicle comprises a valve body 2 installed in a vehicle body 20, a valve core 7 with a vent hole 26 and arranged in the valve body 2, and an emergency valve panel 1 fixed on the vehicle body 20 through screws, wherein an upper mounting hole 28 and a lower mounting hole 29 are formed in the upper end surface and the lower end surface of the valve body 2, an upper internal thread end cover 4 is fixed in the upper mounting hole 28 through screws, a lower internal thread end cover 27 is fixed in the lower mounting hole 29 through screws, the valve core 7 is clamped between the upper internal thread end cover 4 and the lower internal thread end cover 27, an exhaust pipe 22 is connected to the upper internal thread end cover 4 through threads, and an intake pipe 21 is connected to the lower internal thread end cover 27 through threads;
the valve body 2 is fixed with a short limit connecting piece 3 through a long screw, the panel 1 for the emergency valve is fixed with the short limit connecting piece 3 through a screw, a lock cylinder short shaft 5 penetrates through the panel 1 for the emergency valve and the short limit connecting piece 3, the lock cylinder short shaft 5 is inserted into the valve core 7 and drives the valve core 7 to rotate to an unlocking state, a conducting air path is formed among the air inlet pipe 21, the air vent 26 and the exhaust pipe 22, the pneumatic locking device of the door system is reset to achieve a door opening state, and otherwise, the pneumatic locking device is in a reset state.
An O-shaped ring is arranged at the joint of the panel 1 for the emergency valve and the short limit connecting piece 3; a panel sealing gasket 6 for the emergency valve is arranged at the joint of the panel 1 for the emergency valve and the vehicle body 20; o-shaped rings are arranged at the joints of the upper and lower internal thread end covers 4 and 27 and the valve body 2; o-shaped rings are arranged at the joints of the lock cylinder short shafts 5 and the valve body 2; an O-shaped ring is arranged at the joint of the short limit connecting piece 3 and the valve body 2; an O-shaped ring is arranged at the joint of the short limit connecting piece 3 and the panel 1 for the emergency valve; valve core sealing gaskets 8 are arranged at the contact positions of the valve core 7 and the upper and lower internal thread end covers 4 and 27.
One end face of the short limit connecting piece 3 is provided with a process counter bore 30, the other end face of the short limit connecting piece 3 is provided with a limit counter bore 31, a through hole 32 is arranged between the process counter bore 30 and the limit counter bore 31 and is communicated through the through hole 32, the inner wall of the through hole 32 is provided with a sealing ring groove 33 for installing a sealing ring, the bottom surface of the limit counter bore 31 is provided with a rotation limit groove 23 with a preset rotation angle range,
the lock core short shaft 5 comprises a limiting plate 35, and a protrusion 24 which rotates in the rotation limiting groove 23 is arranged on the plate surface, close to the panel 1 for the emergency valve, of the limiting plate 35.
The outer circle edge of the valve core 7 is provided with an arc-shaped notch 25 inserted into the lock cylinder short shaft 5, the fourth quadrant of the valve core 7 is internally provided with a through air hole 36 inclining upwards, the left end face of the valve body 2 is provided with an air hole 37 communicated with the atmosphere, and any end of the through air hole 36 is communicated with the air hole 37 when the valve core 7 rotates.
An emergency exhaust valve indication label 9 is attached to the panel 1 for an emergency valve.
The working process is as follows:
the emergency exhaust device is arranged in the vehicle door 20, so that the emergency exhaust device is in a closed state, the lock cylinder short shaft 5 is operated by rotating a train general key for 90 degrees, the lock cylinder short shaft 5 can rotate within a range of 90 degrees to enable the emergency exhaust device to be in an unlocked state, the lock cylinder short shaft 5 synchronously drives the valve core 7 to rotate, and at the moment, the air inlet pipe 21, the exhaust pipe 22 and the vent hole 26 form air path conduction on a straight line, so that a door opening effect is achieved; the short shaft 5 of the lock cylinder is rotated again, the air inlet pipe 21, the air outlet pipe 22 and the air pipe 26 are not in the same straight line, the air path is closed, and the reset effect is achieved.
Therefore, the split mounting structure of the whole exhaust valve device is designed, the maintenance is convenient, the design of valves with different model sizes is facilitated, the manual operation is changed into a special lock cylinder by a handle, the operation of non-professional persons is prevented, the multi-channel sealing part of the exhaust valve is protected, the dustproof sealing performance is better, the mounting mode of screws is changed into by original screw threads through the threaded end cover, and the maintenance in the later period is convenient.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (5)
1. An emergency exhaust device for a railway vehicle, comprising a valve body (2) mounted in a vehicle body (20), a valve body (7) with a vent hole (26) provided in the valve body (2), and an emergency valve panel (1) fixed to the vehicle body (20) by a screw, characterized in that: an upper mounting hole (28) and a lower mounting hole (29) are formed in the upper end face and the lower end face of the valve body (2), an upper internal thread end cover (4) is fixed in the upper mounting hole (28) through a screw, a lower internal thread end cover (27) is fixed in the lower mounting hole (29) through a screw, a valve core (7) is clamped between the upper internal thread end cover (4) and the lower internal thread end cover (27), the upper internal thread end cover (4) is connected with an exhaust pipe (22) through a thread, and the lower internal thread end cover (27) is connected with an air inlet pipe (21) through a thread;
be fixed with short spacing connecting piece (3) through long screw on valve body (2), be fixed with short spacing connecting piece (3) through the screw on panel (1) for emergency valve, panel (1) for emergency valve and short spacing connecting piece (3) are interior to wear to be equipped with lock core minor axis (5), lock core minor axis (5) are inserted and are established in case (7) and synchronous moving valve core (7) are rotatory to the state of unblocking, intake pipe (21), form between air vent (26) and blast pipe (22) and lead to the gas circuit, it resets in order to reach the state of opening the door to realize the pneumatic locking device of door system, otherwise, then for the reset state.
2. An emergency exhaust apparatus for railway vehicles according to claim 1, wherein: an O-shaped ring is arranged at the joint of the panel (1) for the emergency valve and the short limit connecting piece (3);
a panel sealing gasket (6) for the emergency valve is arranged at the joint of the panel (1) for the emergency valve and the vehicle body (20);
o-shaped rings are arranged at the joints of the upper and lower internal thread end covers (4 and 27) and the valve body (2);
o-shaped rings are arranged at the joints of the lock cylinder short shaft (5) and the valve body (2);
an O-shaped ring is arranged at the joint of the short limit connecting piece (3) and the valve body (2);
an O-shaped ring is arranged at the joint of the short limit connecting piece (3) and the panel (1) for the emergency valve;
valve core sealing gaskets (8) are arranged at the contact positions of the valve core (7) and the upper and lower internal thread end covers (4 and 27).
3. An emergency exhaust apparatus for railway vehicles according to claim 1, wherein: a process counter bore (30) is arranged on one end face of the short limit connecting piece (3), a limit counter bore (31) is arranged on the other end face of the short limit connecting piece (3), a through hole (32) is arranged between the process counter bore (30) and the limit counter bore (31) and is communicated through the through hole (32), a sealing ring groove (33) for installing a sealing ring is arranged on the inner wall of the through hole (32), a rotary limit groove (23) with a preset rotating angle range is arranged on the bottom face of the limit counter bore (31),
the lock core short shaft (5) comprises a limiting plate (35), and a protrusion (24) rotating in a rotating limiting groove (23) is arranged on the limiting plate (35) close to the panel (1) for the emergency valve.
4. An emergency exhaust apparatus for railway vehicles according to claim 1, wherein: the lock core is characterized in that a circular arc-shaped notch (25) inserted into the lock core short shaft (5) is formed in the edge of the outer circle of the valve core (7), an upward inclined through air hole (36) is formed in the fourth quadrant of the valve core (7), an air hole (37) communicated with the atmosphere is formed in the end face of the left end of the valve body (2), and any end of the through air hole (36) is communicated with the air hole (37) when the valve core (7) rotates.
5. An emergency exhaust apparatus for railway vehicles according to claim 1, wherein: an emergency exhaust valve indicating label (9) is pasted on the panel (1) for the emergency valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921428240.6U CN210918599U (en) | 2019-08-29 | 2019-08-29 | Emergency exhaust device for railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921428240.6U CN210918599U (en) | 2019-08-29 | 2019-08-29 | Emergency exhaust device for railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210918599U true CN210918599U (en) | 2020-07-03 |
Family
ID=71343516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921428240.6U Active CN210918599U (en) | 2019-08-29 | 2019-08-29 | Emergency exhaust device for railway vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210918599U (en) |
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2019
- 2019-08-29 CN CN201921428240.6U patent/CN210918599U/en active Active
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