CN113086209B - Foot heating switch - Google Patents
Foot heating switch Download PDFInfo
- Publication number
- CN113086209B CN113086209B CN202110329730.6A CN202110329730A CN113086209B CN 113086209 B CN113086209 B CN 113086209B CN 202110329730 A CN202110329730 A CN 202110329730A CN 113086209 B CN113086209 B CN 113086209B
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- pedal
- door plate
- plate
- switch
- shell
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 16
- 230000005484 gravity Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
- B64D13/06—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being conditioned
- B64D13/08—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being conditioned the air being heated or cooled
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Central Heating Systems (AREA)
Abstract
The invention belongs to the technical field of temperature control, and discloses a foot heating switch. The invention has brand new design and unique structure appearance, and integrates air flow guiding and flow limiting and pedal control. It mainly comprises a shell, a door plate, a rotating shaft, an elastic washer, a pedal plate and the like. By adding the combined design of the airflow guiding device and the pedal on the switch, a switch air path is formed without depending on the control of an electric mechanism, and the airflow output end does not need to be additionally provided with a multifunctional switch of an airflow guiding device. The driver can control the air supply flow and the ambient temperature around the feet by only controlling the pedal on the switch, and the operation is convenient, simple and practical.
Description
Technical Field
The invention belongs to the technical field of temperature control, and particularly relates to a foot heating switch.
Background
When the aircraft flies at high altitude, the cabin of the aircraft is usually in a heating state due to low external temperature. According to the principle of the air field that hot air floats upwards and cold air sinks, the temperature sensed by the feet of a driver is relatively low in the heating state. Conventional approaches to this problem have been to either raise the cabin bulk temperature or to add a restrictor ring to the pilot foot air delivery nozzle. The adoption of the whole temperature of the lifting cabin is required to provide larger air supply flow for the cockpit, and the economy is poor. The mode of adding the flow limiting ring on the foot spray pipe of the driver can be finally determined through a certain ground test and flight verification, the design method is small in adjustment redundancy, and the driver has no controllability and is poor in comfort and economy.
Disclosure of Invention
The purpose of the invention is that: the heating switch is in a full-mechanical structure mode integrating air flow guiding and foot control, and a driver can control the air supply flow and the ambient temperature around the foot by only controlling the foot pedal on the switch. The device is simple and smart in whole, convenient to operate, safe, reliable, firm and durable, easy to install and maintain, uniform in airflow evacuation, free of additional electric power, and capable of improving the use efficiency and controllability of the system.
The technical scheme of the invention is as follows:
a foot warming switch, comprising: the pedal comprises a rotating shaft 1, a shell 2, a pedal plate 4 and a door plate 6;
the shell is fixed on the floor, and the bottom of the shell is connected with the air supply pipe;
bearing columns are arranged on two sides of the lower part of the shell, and the rotating shaft is fixed on the bearing columns;
the door plate is arranged inside the shell and fixed on the rotating shaft;
the left side of the rotating shaft is connected with the pedal; the installation included angle of the pedal plate and the door plate is alpha degrees.
The upper part of the shell is provided with an air flow guide groove, and the rotating angle of the door plate is controlled by controlling the pedal plate so as to control the on-off of air flow.
Further, the shell consists of a lower cylinder and an upper hemisphere, the diameter of the cylinder is a, the height of the cylinder is b, and the diameter of the hemisphere is c;
further, the door plate is elliptical, the short shaft of the door plate is arranged on the rotating shaft, the long shaft of the door plate is c, and the short shaft is a. The distance between the rotating shaft fixed on the bearing column and the floor is not smaller than the half major axis length c/2 of the elliptic door plate.
Further, the switch further comprises an elastic washer 3, which is arranged between the foot pedal and the housing through the rotation shaft.
Further, the switch also comprises a bushing 7, which is arranged between the bearing posts on both sides and the rotating shaft; the left bushing extends out of the bearing post to contact the elastic washer.
Further, the switch also comprises a torque adjusting screw, a threaded hole is formed in the left side of the rotating shaft, the torque adjusting screw is arranged in the threaded hole, the pedal plate is sleeved on the torque adjusting screw, and the friction force among the bushing, the elastic washer and the pedal plate is adjusted by adjusting the depth of the torque adjusting screw screwed into the threaded hole.
Further, a limiting block is further arranged on the pedal, and the limiting block contacts with the floor to limit the pedal when the door plate rotates to the vertical position.
Further, an integrally formed flange plate is arranged at the bottom of the shell, and the flange plate is fixed on the floor by using screws.
The invention has the advantages and beneficial effects that:
the structure has unique appearance, is simple, convenient and smart, occupies small space and has small characteristic change during mass production;
the hemispherical body has high structural strength, strong trampling prevention function and long service life;
the driver controls the on-off of the heating switch gas circuit through the pedal, the operation is simple and easy to achieve, and the controllability is high;
the switch is additionally provided with the airflow guiding and limiting device, so that the airflow is uniformly diffused, and the comfort is good.
The combined design of the airflow guiding and limiting device and the pedal plate reduces the additional arrangement of the airflow guiding device at the airflow output end, increases the additional functions of the switch, and has convenient operation, simplicity, practicability and good economy.
Drawings
FIG. 1 is a schematic diagram of a foot warming switch;
FIG. 2 is a schematic diagram of the installation of the foot warming switch;
in the figure, 1-rotating shaft, 2-shell, 3-elastic washer, 4-pedal, 5-moment adjusting screw, 6-door plate, 7-bushing, 8-foot heating switch, 9-blast pipe, 10-floor and 11-screw.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings
As shown in fig. 1, a foot heating switch 8 in an aircraft environmental control system comprises a rotating shaft 1, a shell 2, an elastic washer 3, a pedal plate 4, a moment adjusting screw 5, a door plate 6 and a bushing 7, wherein the switch shell 2 adopts a structure of combining a cylinder with a hemisphere, the rotating door plate 6 in the shell 2 adopts an elliptical structure, the pedal plate 4 and the door plate 6 are connected together through the rotating shaft 1 and the elastic washer 3, and an airflow guide groove is formed in the switch sphere.
The bottom of the foot pedal 4 is provided with a limiting block.
The foot pedal 4 is provided with a moment adjusting screw 5.
When the driver needs to heat the feet, the pedal plate 4 is trampled to rotate forwards, the switch door plate 6 rotates in the opening direction along with the pedal plate, when the door plate 6 rotates to the vertical direction, namely the full opening position, the door plate is consistent with the direction of conveying air flow, namely the door plate is parallel to the air flow, meanwhile, the limiting block at the bottom of the pedal plate 4 is just contacted with the installation floor 10, at the moment, the pedal plate 4 is in a forward inclined state, and under the combined action of the limiting block on the pedal plate 4, the friction locking force between the elastic gasket 3 and the pedal plate 4 and the forward gravity center of the pedal plate 4, the door plate is in the full opening position, the air flow in the air conveying pipe is ensured to flow out to the periphery along the guide groove on the switch hemispheroid, and a comfortable local temperature field is provided for the periphery of the feet of the driver.
When a driver does not need to heat, the rotating door plate 6 rotates in the closing direction by pulling the pedal plate 4 backwards, and as the door plate is of an oval structure, the long axis length of the oval door plate is 46mm, the short axis length is 40mm, the lower half part of the shell is a cylinder with the diameter of 40mm, the upper half part of the shell is a SR23mm hemisphere, the distance between the rotating shaft and the bottom plate is not less than 23mm of the half long axis length, and the height of the cylinder is not less than 23mm; when the door plate rotates to 70 degrees with the vertical plane, the door plate 6 is clamped on the side wall of the cylinder, the door plate 6 stops rotating, the pedal plate 4 is inclined backwards at the moment, and the switch is kept in the closed state under the combined action of the gravity center of the backward inclination of the pedal plate, the friction locking force between the elastic washer 3 and the pedal plate 4.
The pedal is provided with a moment adjusting screw 5, and the rotating moment of the pedal can be adjusted by adjusting the force of the moment adjusting screw 5 on the pedal, so that the switch door plate stays at any position in the switch stroke. The rotating moment of the foot pedal can be adjusted by adjusting the tightness of the moment adjusting screw 5 on the switch. When the adjusting screw 5 rotates clockwise, the friction force between the elastic washer 3, the bushing 7 and the pedal plate 4 is increased, and the rotation moment of the pedal plate is also increased; when the torque adjusting screw 5 rotates anticlockwise, the friction force between the elastic washer 3, the bush 7 and the pedal plate 4 is reduced, and the rotating torque of the pedal plate is correspondingly reduced. During assembly, the control degree of the switch is ensured by adjusting the proper rotation moment of the pedal.
As shown in figure 2, the air supply conduit 9 is generally laid from bottom to top under the floor 10, and the heating switch is arranged at the outlet end of the air supply conduit on the floor, so that the air supply conduit is simple and easy to reach and convenient to operate. The heating switch 8, the blast pipe 9 and the cockpit floor 10 are connected together through bolts 11, the blast pipe sends hot air in the gas transmission pipe of the system into the foot heating switch, when the foot heating switch is opened, the hot air flows out from the air supply end guide groove at a certain flow rate, and the comfortable temperature environment around the feet of a driver is ensured.
Claims (2)
1. A foot heating switch, characterized in that: the switch includes: the pedal comprises a rotating shaft (1), a shell (2), a pedal (4) and a door plate (6);
the shell is fixed on the floor, and the bottom of the shell is connected with the air supply pipe;
bearing columns are arranged on two sides of the lower part of the shell, and the rotating shaft is arranged on the bearing columns;
the door plate is arranged inside the shell and fixed on the rotating shaft;
the left side of the rotating shaft is connected with the pedal; the installation included angle between the pedal and the door plate is alpha degrees;
the upper part of the shell is provided with an air flow guide groove, and the rotating angle of the door plate is controlled by controlling the pedal plate so as to control the on-off of air flow;
the shell consists of a lower cylinder and an upper hemisphere, the diameter of the cylinder is a, the height of the cylinder is b, and the diameter of the hemisphere is c;
the door plate is elliptical, a short shaft of the door plate is arranged on the rotating shaft, a long shaft of the door plate is c, and a short shaft of the door plate is a; the distance between the rotating shaft and the floor is not less than the half major axis length c/2 of the elliptic door plate;
the switch also comprises an elastic washer (3), a bushing (7) and a torque adjusting screw (5), wherein the elastic washer passes through the rotating shaft and is arranged between the pedal and the shell; the bushing is arranged between the bearing posts on the two sides and the rotating shaft; the left bushing extends out of the bearing post to contact with the elastic washer, a threaded hole is formed in the left side of the rotating shaft, the torque adjusting screw is arranged in the threaded hole, the pedal plate is sleeved on the torque adjusting screw, and the friction force among the bushing, the elastic washer and the pedal plate is adjusted by adjusting the depth of the torque adjusting screw screwed into the threaded hole; a limiting block is further arranged on the pedal plate, and the limiting block contacts with the floor to limit the pedal plate when the door plate rotates to the full-open position in the vertical direction;
when the feet are required to be heated, the pedal is stepped on to rotate forwards, and under the combined action of the limiting block, the elastic washer and the friction locking force between the pedal and the forward gravity center of the pedal, the door plate is positioned at the full-open position; when the heating is not needed, the pedal is pulled backwards, so that the door plate is clamped on the side wall of the cylinder, and the switch is kept in a closed state under the combined action of the backward tilting gravity center of the pedal, the friction locking force between the elastic washer and the pedal.
2. A foot warming switch of claim 1, wherein: the bottom of the shell is provided with an integrally formed flange plate, and the flange plate is fixed on the floor by using screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110329730.6A CN113086209B (en) | 2021-03-26 | 2021-03-26 | Foot heating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110329730.6A CN113086209B (en) | 2021-03-26 | 2021-03-26 | Foot heating switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113086209A CN113086209A (en) | 2021-07-09 |
| CN113086209B true CN113086209B (en) | 2023-06-23 |
Family
ID=76670612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110329730.6A Active CN113086209B (en) | 2021-03-26 | 2021-03-26 | Foot heating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113086209B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2648816C3 (en) * | 1976-10-27 | 1980-01-17 | Knorr-Bremse Gmbh, 8000 Muenchen | Step plate valve for single- and multi-circuit pressure medium braking devices of motor vehicles |
| DE2836800A1 (en) * | 1978-08-23 | 1980-03-06 | Volkswagenwerk Ag | Airflow distributor for car interior - has control flap to direct air onto face and warm air over feet of occupant |
| BRPI0900514A2 (en) * | 2009-03-06 | 2010-12-14 | Valeo Sist S Automotivos Ltda Divisao Climatizacao | ventilation, heating and / or conditioning apparatus of a motor vehicle |
| DE202011100120U1 (en) * | 2011-05-02 | 2011-10-24 | Smk Systeme Metall Kunststoff Gmbh & Co. Kg. | butterfly valve |
| DE102011121721A1 (en) * | 2011-12-20 | 2013-06-20 | Airbus Operations Gmbh | Mixing device with reduced risk of icing |
| JP2015116989A (en) * | 2013-12-20 | 2015-06-25 | 株式会社ヴァレオジャパン | Vehicular air conditioner |
| CN205469841U (en) * | 2016-02-03 | 2016-08-17 | 哈尔滨飞机工业集团有限责任公司 | Aircraft air conditioner cockpit and main cabin air feed distribution structure |
| CN107956889A (en) * | 2017-11-20 | 2018-04-24 | 南通贝特医药机械有限公司 | A kind of new soft sealing butterfly valve |
| CN208734897U (en) * | 2018-06-05 | 2019-04-12 | 浙江黄岩明华塑胶管件有限公司 | A kind of butterfly valve seal structure and novel butterfly valve |
-
2021
- 2021-03-26 CN CN202110329730.6A patent/CN113086209B/en active Active
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| Publication number | Publication date |
|---|---|
| CN113086209A (en) | 2021-07-09 |
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