CN111852561A - Tunnel piston effect control device - Google Patents
Tunnel piston effect control device Download PDFInfo
- Publication number
- CN111852561A CN111852561A CN202010759485.8A CN202010759485A CN111852561A CN 111852561 A CN111852561 A CN 111852561A CN 202010759485 A CN202010759485 A CN 202010759485A CN 111852561 A CN111852561 A CN 111852561A
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- sliding
- bottom plate
- shell
- tunnel
- push rod
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- 230000000694 effects Effects 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims abstract description 3
- 239000006260 foam Substances 0.000 claims description 5
- 230000005641 tunneling Effects 0.000 claims 7
- 238000005265 energy consumption Methods 0.000 claims 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K13/00—Other auxiliaries or accessories for railways
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Abstract
The invention relates to the field of tunnels, and particularly discloses a tunnel piston effect control device which comprises an arc-shaped energy dissipation mechanism arranged on the inner wall of a tunnel, wherein the energy dissipation mechanism comprises a shell, the bottom of the shell is provided with a bottom plate in a sliding manner, the bottom plate is provided with a plurality of air inlets, the bottom plate is provided with a push rod, a press plate is arranged in the shell in a sliding manner, the press plate is provided with a through hole, and an air absorption pad is filled between the; the top of the inner wall of the shell is provided with an electric cylinder and a switch unit, the output end of the electric cylinder can abut against the pressing plate, the switch unit comprises a sliding cylinder and a switch body, the switch body is arranged in the sliding cylinder, a push rod is arranged in the sliding cylinder in a sliding manner, and the push rod can press the switch body; the top of the inner wall of the shell is provided with a first elastic piece, and the first elastic piece is connected with the pressing plate; one side of the machine shell facing the outside of the tunnel is provided with an exhaust hole, a one-way valve is arranged in the exhaust hole, and the exhaust hole is positioned above the bottom plate. The invention aims to solve the technical problem that a piston effect is generated when a high-speed train enters a tunnel.
Description
Technical Field
The invention relates to the field of tunnels, and particularly discloses a tunnel piston effect control device.
Background
The piston effect refers to that the train running at high speed in the tunnel drives the air in the tunnel to flow at high speed because the phenomenon of compressing the air by the piston in the cylinder is similar. When a train running at high speed enters a tunnel, the air in the tunnel is originally static, and due to the heavy impact of the train, high-pressure waves are generated and are transmitted at the speed of sound (which is far greater than the running speed of the train), so that when the train enters the tunnel, the high-pressure waves generated are rapidly transmitted to the downstream, the tunnel air transmitted by pressure waves is immediately accelerated, when the pressure waves reach the downstream tunnel mouth, reflected waves are generated, the reflected waves are transmitted to the upstream of the tunnel, and when the transmitted tunnel air is accelerated again. The train vibrates under the action of the pressure waves, and the normal running of the train can be influenced.
Disclosure of Invention
In view of the above, the present invention is directed to a tunnel piston effect control device to solve the technical problem of piston effect generated when a high-speed train enters a tunnel.
In order to achieve the purpose, the invention provides the following technical scheme:
a tunnel piston effect control device comprises an arc-shaped energy dissipation mechanism arranged on the inner wall of a tunnel, wherein the energy dissipation mechanism comprises a shell, the bottom of the shell is provided with a bottom plate in a sliding manner, the bottom plate is provided with a plurality of air inlets, a push rod is arranged on the bottom plate, a press plate is arranged in the shell in a sliding manner, the press plate is provided with a through hole for the push rod to pass through, and an air absorption pad with a loose porous structure is filled between the bottom plate and the press; the top of the inner wall of the shell is provided with an electric cylinder and a switch unit, the output end of the electric cylinder can abut against the pressing plate, the switch unit comprises a sliding cylinder and a switch body, the switch body is arranged in the sliding cylinder, the push rod is arranged in the sliding cylinder in a sliding manner, the push rod can press the switch body, and the switch body is electrically connected with the electric cylinder; the top of the inner wall of the shell is provided with a first elastic piece, and the first elastic piece is connected with the pressing plate; one side of the machine shell facing the outside of the tunnel is provided with an exhaust hole, a one-way valve is arranged in the exhaust hole, and the exhaust hole is positioned above the bottom plate.
Alternatively, the air suction pad may be made of foam or gum with elasticity, and the air suction pad is also provided with a through hole for the push rod to pass through.
Optionally, the top of the pressure plate is provided with a first round hole for accommodating the sliding cylinder.
Optionally, a second elastic element is arranged in the sliding cylinder, and the second elastic element is connected with the push rod.
Optionally, both sides of the inner wall of the casing are vertically provided with sliding grooves, and the bottom plate and the pressing plate are arranged in the sliding grooves in a sliding manner.
Optionally, two side walls of the sliding groove are provided with vertical grooves, two sides of the bottom plate are provided with first sliding blocks, two sides of each first sliding block are provided with vertical blocks, each first sliding block is slidably arranged in the sliding groove, a gap is reserved between one end, far away from the bottom plate, of each first sliding block and the sliding groove, and the vertical blocks are slidably arranged in the vertical grooves; and a second sliding block is arranged on the pressing plate and is arranged in the sliding groove in a sliding manner.
Optionally, two side walls of the casing are provided with installation cavities, one end of each installation cavity is provided with a communicating groove, each communicating groove is communicated with the corresponding sliding groove, an electromagnet and a stop block are arranged in each installation cavity, the top of one side of each stop block is hinged to the top of the corresponding electromagnet, and the electromagnets can be closed under the control of the switch body.
Optionally, a second switch is arranged at the lower part of the sliding groove, the second switch is located between the pressing plate and the bottom plate, and the second switch can abut against the second sliding block and can control the electromagnet to be turned on.
The working principle and the beneficial effects of the scheme are as follows:
1. the scheme is provided with the air suction pad, the air suction pad is in a state of being extruded by the pressing plate, and the porous structure in the air suction pad only has a very small amount of air; when a high-speed train enters a tunnel, a piston effect is generated, air generates high-pressure waves, the high-pressure waves are diffused to a bottom plate and then upwards push the bottom plate, the bottom plate drives a push rod to upwards move, the push rod presses a switch body, an electromagnet is closed, a stop block falls down and does not limit the movement of a pressure plate, the pressure plate upwards moves under the action of a first elastic piece, an air suction pad is restored to the original state and quickly absorbs the air in the high-pressure waves from an air inlet hole, and the energy of the high-pressure waves is consumed. The switch body can also control the electric jar and start after a certain period, and the flexible end of electric jar promotes the clamp plate downwards, and second slider and second switch on the clamp plate offset, and second switch control electro-magnet is opened, and the dog is attracted by the electro-magnet and is supported the clamp plate, prevents that the clamp plate from removing, then the flexible end of electric jar retracts again.
2. In this scheme be provided with the second elastic component in the sliding cylinder, the second elastic component is connected with the push rod, and when the push rod rebound, the second elastic component can play the effect of buffering power consumption.
3. The air suction pad in the scheme is made of gum or foam, the softness and the elasticity of the gum and the foam are good, the loose porous structure can guarantee that the interior of the air suction pad has enough space for absorbing air, the air suction pad can directly absorb the air from an air inlet hole when the original state is restored in due date, meanwhile, the air can be actively poured into the air suction pad due to the high pressure of high-pressure waves, and finally, the high-pressure waves can be consumed, and the air vibration is reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
FIG. 3 is a cross-sectional view of the interior of the enclosure;
fig. 4 is an enlarged view at B in fig. 3.
The drawings are numbered as follows: the air suction device comprises a tunnel 1, a machine shell 2, an air inlet 3, a one-way valve 4, a bottom plate 5, an installation cavity 6, an electromagnet 7, a plastic part 8, a metal part 9, a first elastic part 10, a pressing plate 11, a second elastic part 12, a third elastic part 13, a sliding cylinder 14, a switch body 15, an electric cylinder 16, a first sliding block 17, a second sliding block 18, a second switch 19, a sliding groove 20, a vertical groove 21 and an air suction pad 22.
Detailed Description
The following is further detailed by way of specific embodiments:
examples
A tunnel 1 piston effect control device is combined with figures 1-4 and comprises an arc-shaped energy dissipation mechanism arranged on the inner wall of a tunnel 1, wherein the energy dissipation mechanism comprises a casing 2, the casing 2 is in an arc shape attached to the inner wall of the tunnel 1, and the hollow inner part of the casing 2 is provided with an opening at the lower end. The bottom of the casing 2 is vertically provided with a bottom plate 5 in a sliding manner, the bottom plate 5 is provided with a plurality of air inlet holes 3, and the upper wall of the bottom plate 5 is fixedly provided with two push rods. The vertical slip is equipped with clamp plate 11 in the casing 2, is equipped with the through-hole that supplies the push rod to pass on the clamp plate 11, and the top of clamp plate 11 is equipped with first round hole, and first round hole does not run through the bottom of clamp plate 11. The sliding connection mode of the bottom plate 5 and the pressing plate 11 is as follows: sliding grooves 20 are vertically formed in two sides of the inner wall of the machine shell 2, vertical grooves 21 are formed in two side walls of the sliding grooves 20, first sliding blocks 17 are fixedly arranged on two sides of the bottom plate 5, vertical blocks are fixedly arranged on two sides of the first sliding blocks 17, the first sliding blocks 17 are slidably arranged in the sliding grooves 20, a gap is reserved between one end, far away from the bottom plate 5, of the first sliding blocks 17 and the sliding grooves 20, and the vertical blocks are slidably arranged in the vertical grooves 21; the pressing plate 11 is fixedly provided with a second sliding block 18, and the second sliding block 18 is arranged in the sliding groove 20 in a sliding manner.
An air suction pad 22 with a loose porous structure is filled between the bottom plate 5 and the pressing plate 11, and the upper end and the lower end of the air suction pad 22 are respectively fixedly connected with the pressing plate 11 and the bottom plate 5. The air suction pad 22 is made of flexible and elastic foam, and a through hole for the push rod to pass through is also arranged on the air suction pad 22. An electric cylinder 16 and a switch unit are fixedly arranged on the top of the inner wall of the shell 2. The output of the electric cylinder 16 can be abutted against the pressure plate 11. The switch unit comprises a sliding cylinder 14 and a switch body 15, wherein the switch body 15 is fixedly arranged in the sliding cylinder 14, the switch body 15 is a press type switch, and the switch body 15 is electrically connected with an electric cylinder 16. The push rod is arranged in the sliding cylinder 14 in a sliding mode and can press the switch body 15; a second elastic part 12 is fixedly arranged in the sliding cylinder 14, the second elastic part 12 is arranged around the switch body 15, and the second elastic part 12 is fixedly connected with the push rod. The top of the inner wall of the casing 2 is fixedly provided with a plurality of first elastic members 10, and the first elastic members 10 are fixedly connected with a pressing plate 11. Casing 2 is equipped with the exhaust hole towards the outside one side in tunnel 1, is equipped with check valve 4 in the exhaust hole, and the exhaust hole is located the top of bottom plate 5, the below of clamp plate 11, and when bottom plate 5 upwards displaced extreme position, clamp plate 11 downwards displaced extreme position, both can not shelter from the exhaust hole.
Be equipped with installation cavity 6 on two lateral walls of casing 2, the one end of installation cavity 6 is equipped with the intercommunication groove, intercommunication groove and spout 20 intercommunication, be provided with electro-magnet 7 in the installation cavity 6, dog and third elastic component 13, one side top of dog is articulated with electro-magnet 7's top, electro-magnet 7 can be closed by switch body 15 control, the fixed setting of one end of third elastic component 13 is on the inner wall of installation cavity 6, and third elastic component 13 is located electro-magnet 7's top, the other end of third elastic component 13 and the upper end fixed connection of dog. The dog includes metal part 9 and plastics portion 8, and metal part 9 inlays at one side top that plastics portion 8 is close to electro-magnet 7, and metal part 9 can contact with electro-magnet 7, and plastics portion 8 can offset with clamp plate 11. The lower part of the chute 20 is provided with a second switch 19, the second switch 19 is positioned between the pressing plate 11 and the bottom plate 5, and the second switch 19 can be abutted against the second slide block 18 and can control the electromagnet 7 to be turned on. The switch body 15 and the second switch 19 may be implemented by a relay to achieve delayed, timed activation and deactivation.
In the specific implementation:
when a high-speed train enters the tunnel 1, air is extruded instantly to form high-pressure waves, the high-pressure waves are diffused on the bottom plate 5 of the machine shell 2 to push the bottom plate 5 upwards, the bottom plate 5 can drive the push rod to move upwards when moving upwards, and the bottom plate 5 can absorb the energy of the high-pressure waves firstly because the push rod is connected with the second elastic part 12; meanwhile, when the push rod touches the switch body 15, the electromagnet 7 is controlled to be powered off, the stop block swings upwards under the action of the third elastic piece 13 and is separated from the pressing plate 11, when the pressing plate 11 is not stopped by the stop block, the stop block moves upwards instantaneously under the action of the first elastic piece 10, the pressing plate 11 drives the air suction pad 22 to be unfolded, and when the air suction pad 22 is unfolded, negative pressure is generated in the air suction pad and air below the bottom plate 5 is sucked into the machine shell 2, so that the energy of high-pressure wave is reduced. When the push rod touches the switch body 15, the switch body 15 can also control the delay start and the close of the electric cylinder 16, the output end of the electric cylinder 16 firstly pushes the pressing plate 11 downwards, when the second sliding block 18 on the pressing plate 11 contacts with the second switch 19, the electromagnet 7 is electrified, the metal part 9 on the stop block is attracted to the electromagnet 7, the stop block returns to the original position, the electric cylinder 16 closes the telescopic end to retract again, the pressing plate 11 moves upwards for a certain distance until the pressing plate abuts against the stop block, and the original position is completely returned. The platen 11, moving downwardly by the cylinder 16, forces air out of the suction pad 22 in preparation for the next suction.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.
Claims (8)
1. A tunnel piston effect control device, characterized by: the tunnel energy consumption device comprises an arc-shaped energy consumption mechanism arranged on the inner wall of a tunnel, wherein the energy consumption mechanism comprises a shell, the bottom of the shell is provided with a bottom plate in a sliding manner, the bottom plate is provided with a plurality of air inlets, the bottom plate is provided with a push rod, a press plate is arranged in the shell in a sliding manner, the press plate is provided with a through hole for the push rod to pass through, and an air absorption pad with a loose porous structure is; the top of the inner wall of the shell is provided with an electric cylinder and a switch unit, the output end of the electric cylinder can abut against the pressing plate, the switch unit comprises a sliding cylinder and a switch body, the switch body is arranged in the sliding cylinder, the push rod is arranged in the sliding cylinder in a sliding manner, the push rod can press the switch body, and the switch body is electrically connected with the electric cylinder; the top of the inner wall of the shell is provided with a first elastic piece, and the first elastic piece is connected with the pressing plate; one side of the machine shell facing the outside of the tunnel is provided with an exhaust hole, a one-way valve is arranged in the exhaust hole, and the exhaust hole is positioned above the bottom plate.
2. The tunneling piston effect control device of claim 1, wherein: the air suction pad can be made of elastic foam or gum, and a through hole for the push rod to pass through is also arranged on the air suction pad.
3. The tunneling piston effect control device of claim 2, wherein: the top of clamp plate is equipped with the first round hole that is used for holding the sliding cylinder.
4. The tunneling piston effect control device of claim 3, wherein: and a second elastic part is arranged in the sliding cylinder and connected with the push rod.
5. The tunneling piston effect control device of claim 4, wherein: the inner wall both sides of casing all vertically are equipped with the spout, bottom plate and clamp plate all slide to set up in the spout.
6. The tunneling piston effect control device of claim 5, wherein: two side walls of the sliding groove are provided with vertical grooves, two sides of the bottom plate are provided with first sliding blocks, two sides of each first sliding block are provided with vertical blocks, each first sliding block is arranged in the sliding groove in a sliding mode, a gap is reserved between one end, far away from the bottom plate, of each first sliding block and the sliding groove, and the vertical blocks are arranged in the vertical grooves in a sliding mode; and a second sliding block is arranged on the pressing plate and is arranged in the sliding groove in a sliding manner.
7. The tunneling piston effect control device of claim 6, wherein: the electromagnetic switch is characterized in that mounting cavities are formed in two side walls of the shell, a communicating groove is formed in one end of each mounting cavity and communicated with the corresponding sliding groove, an electromagnet and a stop block are arranged in each mounting cavity, the top of one side of each stop block is hinged to the top of the corresponding electromagnet, and the electromagnets can be controlled to be closed through the switch body.
8. The tunneling piston effect control device of claim 7, wherein: the lower part of the sliding groove is provided with a second switch, the second switch is positioned between the pressing plate and the bottom plate, and the second switch can be abutted against the second sliding block and can control electromagnetism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010759485.8A CN111852561B (en) | 2020-07-31 | 2020-07-31 | Tunnel piston effect control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010759485.8A CN111852561B (en) | 2020-07-31 | 2020-07-31 | Tunnel piston effect control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111852561A true CN111852561A (en) | 2020-10-30 |
| CN111852561B CN111852561B (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010759485.8A Active CN111852561B (en) | 2020-07-31 | 2020-07-31 | Tunnel piston effect control device |
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| Country | Link |
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| CN (1) | CN111852561B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879491A (en) * | 2021-01-12 | 2021-06-01 | 重庆文理学院 | Air vibration damper for high-speed rail tunnel |
| CN116949963A (en) * | 2023-09-18 | 2023-10-27 | 山西军昊实业有限公司 | Cylindrical integrated totally-enclosed sound barrier |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002201895A (en) * | 2000-12-28 | 2002-07-19 | Shunji Kondo | Train tunnel having shock absorbing structure |
| US20130178143A1 (en) * | 2012-01-09 | 2013-07-11 | Union Pacific Railroad Company | Air baffles in railroad tunnels for decreased airflow therein and improved ventilation and cooling of locomotives |
| CN104727827A (en) * | 2015-01-15 | 2015-06-24 | 孙辉 | Railway tunnel for buffering aerodynamics effects of high-speed train in tunnel |
| CN207337929U (en) * | 2017-11-28 | 2018-05-08 | 北京司坎·拓普国际电气有限公司 | Resist Piston Action Wind formula track traffic device case |
| CN207944965U (en) * | 2018-02-28 | 2018-10-09 | 鲍润全 | A kind of railway tunnel micro-pressure wave buffer structure |
-
2020
- 2020-07-31 CN CN202010759485.8A patent/CN111852561B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002201895A (en) * | 2000-12-28 | 2002-07-19 | Shunji Kondo | Train tunnel having shock absorbing structure |
| US20130178143A1 (en) * | 2012-01-09 | 2013-07-11 | Union Pacific Railroad Company | Air baffles in railroad tunnels for decreased airflow therein and improved ventilation and cooling of locomotives |
| CN104727827A (en) * | 2015-01-15 | 2015-06-24 | 孙辉 | Railway tunnel for buffering aerodynamics effects of high-speed train in tunnel |
| CN207337929U (en) * | 2017-11-28 | 2018-05-08 | 北京司坎·拓普国际电气有限公司 | Resist Piston Action Wind formula track traffic device case |
| CN207944965U (en) * | 2018-02-28 | 2018-10-09 | 鲍润全 | A kind of railway tunnel micro-pressure wave buffer structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879491A (en) * | 2021-01-12 | 2021-06-01 | 重庆文理学院 | Air vibration damper for high-speed rail tunnel |
| CN116949963A (en) * | 2023-09-18 | 2023-10-27 | 山西军昊实业有限公司 | Cylindrical integrated totally-enclosed sound barrier |
| CN116949963B (en) * | 2023-09-18 | 2024-01-02 | 山西军昊实业有限公司 | Cylindrical integrated totally-enclosed sound barrier |
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| Publication number | Publication date |
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| CN111852561B (en) | 2022-08-19 |
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