CN209400562U - A kind of pitot - Google Patents
A kind of pitot Download PDFInfo
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- CN209400562U CN209400562U CN201822273837.XU CN201822273837U CN209400562U CN 209400562 U CN209400562 U CN 209400562U CN 201822273837 U CN201822273837 U CN 201822273837U CN 209400562 U CN209400562 U CN 209400562U
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- pitot
- tube body
- shell
- tube
- conical pipe
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Abstract
The utility model relates to a kind of pitots, it belongs to aerospace parts field, solve the technical issues of pitot in the prior art is without wave.Pitot in the utility model, it includes pitot tube body and shell, and the material of the pitot tube body is glass reinforced plastic, and for guiding air-flow to enter measuring device, which, which is connected with the shell and passes through the shell, is mounted on body.Pitot disclosed in the utility model, the material of above-mentioned pitot tube body are glass reinforced plastic, since glass reinforced plastic has the characteristic of wave transparent, play the role of inhibiting radar reflection, so as to meet the stealthy effect of aircraft；And relative to the pitot of conventional metals manufacture, the pitot being made of glass fiber reinforced plastic has the advantages that quality is lighter, intensity is higher.
Description
Technical field
The utility model relates to aerospace parts fields, and in particular to a kind of pitot.
Background technique
Pitot is a kind of tube for measuring air-flow stagnation pressure and static pressure to determine air velocity, it is by experiencing air-flow
Stagnation pressure and static pressure and send the pressure data measured the devices such as to air data computer, flying instruments, be applied to boat more
On empty space equipment, it is primarily used to measurement flying speed, pitot allows airflow into sky by the air inlet being arranged on tube body
Inside fast pipe, the airflow duct inside pitot is directed flow on the inductor of catheter tip, experiences gas by inductor
Dynamic pressure is converted using electronic equipment or monitoring device, can be detected out aircraft by the impact strength (i.e. dynamic pressure) of stream
Real-time flight speed, then can intuitively be shown the speed per hour of aircraft by instrument board.
Traditional pitot uses metal material, and metal material has radar reflection effect, does not have wave transparent and acts on, not
It is able to satisfy the demand of Stealth Fighter, urgent need has Stealth Fighter pitot.
Due to will receive biggish resistance when aircraft flight, the part being mounted on body can also be designed for reduction
The structure of air drag.Pitot in the prior art is provided with conical nose on pitot tube body usually to reduce sky
Atmidometer.When processing pitot, conical nose is integrally formed with pitot tube body and is produced, to guarantee that pitot is whole
Machining accuracy, conical nose be arranged to side be plane conical pipe.But due to pitot small volume itself, cone
The area in forming head portion is also small, thus the pressure that conical nose is born is big, and conical nose is caused to be easy to damage because of suppressing, from
And the service life of pitot is caused to shorten because of the rapid wear of conical nose.
When aircraft flight in the sky, air enters condensate liquid easy to form in pitot, causes the blocking to air inlet, from
And influence the accuracy of pitot measurement data.
Utility model content
The purpose of this utility model is to propose a kind of pitot, to solve pitot in the prior art without wave
The technical issues of.
The purpose of this utility model is following technical proposals to realize:
A kind of pitot, it includes pitot tube body and shell, and the material of the pitot tube body is glass reinforced plastic, for drawing
Flow guide enters measuring device, which, which is connected with the shell and passes through the shell, is mounted on body.
Further, the pitot tube body is provided with conical pipe, the conical pipe and pitot far from one end of shell
Tube body connection, the profile of the conical pipe are parabola.
Further, the conical pipe is equipped with the weeper for conical pipe inner condensat liquid to be discharged.
Further, the pitot tube body includes the first tube body and the second tube body, and first tube body is set to second
In tube body, the conical pipe is connected to the first tube body.
Further, the conical pipe is equipped with the first air inlet far from one end of pitot tube body, so that air-flow enters the
One tube body；Second tube body is equipped with the second air inlet, so that air-flow enters the second tube body.
Further, first tube body is connected with dynamic pressure tube, the dynamic pressure tube and the first pipe far from one end of conical pipe
Body is connected to and the angle between the first tube body is obtuse angle；Second tube body is connected with static tube far from one end of conical pipe,
The static tube is connected to the second tube body and is parallel to dynamic pressure tube setting.
It further, further include shell, the shell is set to outer static tube and dynamic pressure tube and the shell and pitot pipe
Body is connected.
Further, the junction of the shell and pitot tube body is equipped with connects for consolidating shell and pitot tube body
The connector connect.
Further, the shell includes symmetrically arranged first shell and second shell, the first shell and second
It is fixedly connected between shell.
Further, second tube body is respectively resin with the connection material of the first tube body, conical pipe and shell.
The utility model has the beneficial effects that:
(1) pitot in the utility model, the material of above-mentioned pitot tube body are glass reinforced plastic, since glass reinforced plastic has thoroughly
The characteristic of wave plays the role of inhibiting radar reflection, so as to meet the stealthy effect of aircraft；And relative to conventional metals
The pitot of manufacture, the pitot being made of glass fiber reinforced plastic have the advantages that quality is lighter, intensity is higher.
(2) profile of the pitot in the utility model, above-mentioned conical pipe is parabola, i.e. the side of conical pipe is outside
The cambered surface of protrusion, when aircraft flight in the sky, relative to plane, the flow velocity that air flows through the cambered surface of protrusion is big, can reduce cone
The pressure of shape pipe side, to reduce the spoilage of conical pipe；Therefore, under identical pressure, the conical pipe energy of cambered surface setting
Enough have the longer service life, at the same also can for body bear more High Voltage environment in operation convenience is provided.
(3) water of taper in-tube condensation can be discharged for the pitot in the utility model, the setting of above-mentioned weeper,
Be conducive to air-flow and smoothly enter tube body, to guarantee the accuracy of pitot measurement data.
(4) pitot in the utility model, the above-mentioned pitot tube body angle between dynamic pressure tube and static tube respectively
For obtuse angle, in order to which the clamping force of both direction can be applied to shell, to limit shell and pitot when shell is arranged
Tube body generates relative motion.
(5) pitot in the utility model, the setting of above-mentioned connector increase the overlap joint of pitot tube body and shell
Area, to keep the connection of pitot tube body and shell more firm.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the sectional view of the utility model；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the enlarged diagram in the portion A in Fig. 1.
In figure: 1, conical pipe；11, weeper；12, the first air inlet；21, the first tube body；22, the second tube body；23, second
Air inlet；3, dynamic pressure tube；4, static tube；51, first shell；52, second shell；53, fixing bolt；54, mounting hole；6, it connects
Bend pipe；7, connector.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
A kind of pitot, as shown in Figure 1-Figure 3, including pitot tube body, conical pipe 1, dynamic pressure tube 3 and static tube 4.It is above-mentioned
Pitot tube body includes the first tube body 21 and the second tube body 22, and above-mentioned second tube body 22 is socketed on the first tube body 21, above-mentioned cone
Shape pipe 1 connect with pitot tube body and is connected to the first tube body 21.Specifically, in the junction of conical pipe 1 and pitot tube body,
The length of first tube body 21 less than the second tube body 22 length, convenient for conical pipe 1 respectively with the first tube body 21 and the second tube body 22
Stablize clamping.The profile of above-mentioned conical pipe 1 is parabola, i.e. its side is the cambered surface outwardly protruded, when aircraft flight in the sky,
Relative to plane, the flow velocity that air flows through the cambered surface of protrusion is big, can reduce the pressure of 1 side of conical pipe, to reduce taper
The spoilage of pipe 1；Therefore, under identical pressure, the conical pipe 1 of cambered surface setting can have the longer service life, while also can be
Body operation in the environment for bearing more High Voltage provides convenience.Above-mentioned conical pipe 1 is equipped with the far from one end of pitot tube body
One air inlet 12, when aircraft flight forward, air-flow is rushed in the first tube body 21 by above-mentioned first air inlet 12.In conical pipe
The 1 close junction with the second tube body 22 offers weeper 11, and for the ease of water to be discharged, above-mentioned weeper 11 is located at taper
The underface (heading of opposite aircraft) of pipe 1.The close junction with conical pipe 1 of the second tube body 22 be provided with convenient for into
Second air inlet 23 of gas, air-flow are entered in the second tube body 22 by above-mentioned second air inlet 23.
As shown in Figure 1-Figure 3, one end of above-mentioned dynamic pressure tube 3 is connect by a bridge piece 6 with the first tube body 21, above-mentioned company
The setting of bend pipe 6 is connect, in order to form angle between dynamic pressure tube 3 and pitot tube body, i.e., between dynamic pressure tube 3 and the first tube body 21
To turn to connection.The other end of above-mentioned dynamic pressure tube 3 connects inductor, and inductor can experience the impact strength of air-flow, thus
Measure dynamic pressure.
In practice, the dynamic pressure measured can be used to calculate the speed of aircraft flight.
As shown in Figure 1-Figure 3, the side of pitot tube body setting dynamic pressure tube 3 is arranged in above-mentioned static tube 4, in the second tube body
Setting opening is connect with static tube 4 on 22, so that static tube 4 and dynamic pressure tube 3 are parallel to each other, convenient in dynamic pressure tube 3 and static tube 4
External shell, the setting of above-mentioned shell, first is that can protect dynamic pressure tube 3 and static tube 4 not by physical damnification, second is that just are set
It is mounted on body in by the pitot in the utility model.The other end of above-mentioned static tube 4 connects airspeed-indicator, sets in airspeed-indicator
It is equipped with bellows, static pressure is tested out by the deformation of bellows.
In practice, the static pressure measured can be used as the calculating parameter of altimeter, if bellows is complete
Sealing, the pressure of the inside remain the pressure for being equivalent to ground air, and in this way when aircraft is flown in the air, height increases, air speed
The static pressure decline that pipe measures, bellows will stick out, and the deformation for measuring bellows can measure aircraft altitude；Utilize the static pressure measured
It can also be made " climb meter ", i.e. survey aircraft height change speed (climb rate).Also there is a bellows in table, but film
Pressure in box is surveyed not according to the dynamic pressure that pitot measures but by special one in the pipe that exit is provided with an aperture
?.This root canal son on aperture size be it is specially designed, for limiting the speed of air pressure change in bellows.If on aircraft
It rises quickly, the air pressure in bellows is restricted by aperture to be declined quickly, and the air pressure outside bellows is due to having on straight-through pitot
Static pressure hole, the pressure for being equivalent to outside atmosphere can be quickly reached, then bellows sticks out.Measurement bellows deformation size be
The speed of aircraft rising can be calculated.When aircraft declines, situation is antithesis.Bellows external pressure rapidly increases, and the air pressure in bellows
It can only slowly increase, then bellows sink, and drives pointer, shows the negative climb rate, i.e. fall off rate.After taking off, in bellows
Outer air pressure is gradually equal, and bellows restores normal shape, and climb meter is designated as zero.
As shown in Figure 1-Figure 3, above-mentioned shell includes symmetrically arranged first shell 51 and second shell 52, by above-mentioned shell
Two parts are set as, are for the ease of by the installation of shell.When being mounted on body due to the pitot in the utility model not
There can be relative motion, therefore set obtuse angle for angle α of the pitot tube body respectively between dynamic pressure tube 3 and static tube 4, so as to
In when shell is arranged, shell can be applied along the engaging in dynamic pressure tube setting direction both direction of pitot setting direction
Power generates relative motion so as to limit shell and pitot tube body.Correspondingly, it is also in bending that above-mentioned shell is whole, with
Convenient for being connect respectively with pitot tube body, dynamic pressure tube 3 and static tube 4.Specifically, said first shell 51 and 52 phase of second shell
Mutually fasten, the cavity that centre is formed to accommodate dynamic pressure tube 3 and static tube 4, and shell respectively with pitot tube body, dynamic pressure tube
3, the junction of static tube 4 forms the connecting hole that matches, so as to which shell is connected to pitot tube body, dynamic pressure tube 3, quiet
In pressure pipe 4.
In order to enable shell to be preferably fixedly connected with pitot tube body, dynamic pressure tube 3, static tube 4, such as Fig. 1-Fig. 3 institute
Show, in the junction of shell and pitot tube body, be provided with cylindric connector 7, increases pitot tube body and shell
Overlapping area, to keep the connection of pitot tube body and shell more firm；Meanwhile in shell and dynamic pressure tube 3 and static tube 4
Junction is provided with fixing bolt 53, increases first shell while increasing shell with the stable connection of dynamic pressure tube 3 and static tube 4
Stable connection between body 51 and second shell 52.One is formed with the junction of dynamic pressure tube 3 and static tube 4 in shell to connect
Face, in order to which the connector 7 of shell and body, the i.e. whole connector 7 with body of pitot are arranged on above-mentioned joint face.Tool
Body, mounting hole 54 is provided on joint face, shell is fixedly mounted on body by fitted bolt, and fixed using bolt connects
Mode is connect, is that relative motion occurs for further limitation pitot and body, while can be convenient and dismantle pitot from body,
So as to the maintenance conditions of pitot.Above-mentioned mounting hole 54 is symmetricly set in first shell 51 and second shell 52, so as to shell
Uniform stressed.
Pitot in the utility model, above-mentioned conical pipe 1, pitot tube body, dynamic pressure tube 3, static tube 4, shell, connection
Part 7 is all made of glass reinforced plastic and is made, and since glass reinforced plastic has the characteristic of wave transparent, can satisfy the stealthy effect of aircraft；And it is opposite
In the pitot of conventional metals manufacture, the pitot being made of glass fiber reinforced plastic has the advantages that quality is lighter, intensity is higher.It is making
When making the pitot in the utility model, above-mentioned conical pipe 1, pitot tube body, dynamic pressure tube 3, static tube 4, shell, connector 7
It is all made of integral forming process, each section is then fixedly connected as an entirety using resin.In pitot manufacturing process,
Usually conical pipe 1 and pitot tube body are integrally formed and manufactured, and in the present invention, in order to by the side of conical pipe 1
Cambered surface is made, therefore conical pipe 1 is separated into individually processing, to guarantee the precision of conical pipe 1.
Pitot in installation the utility model, first with mating pipeline fixture, checks pipeline when on body
Whether air-tightness and pipeline are unobstructed；Then pitot is connected with power supply, gas source, checks its reliability；When aircraft stops, answer
It puts on obvious protective case to be protected, be taken before startup power supply.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.
Claims (10)
1. a kind of pitot, it is characterised in that: including pitot tube body and shell, the material of the pitot tube body is glass
Steel, for guiding air-flow to enter measuring device, which, which is connected with the shell and passes through the shell, is mounted on machine
On body.
2. pitot according to claim 1, it is characterised in that: the pitot tube body is provided with far from one end of shell
Conical pipe (1), the conical pipe (1) are connected to pitot tube body, and the profile of the conical pipe (1) is parabola.
3. pitot according to claim 2, it is characterised in that: the conical pipe (1) is equipped with for conical pipe to be discharged
(1) weeper (11) of inner condensat liquid.
4. pitot according to claim 3, it is characterised in that: the pitot tube body includes the first tube body (21) and the
Two tube bodies (22), first tube body (21) are set in the second tube body (22), and the conical pipe (1) and the first tube body (21) are even
It is logical.
5. pitot according to claim 4, it is characterised in that: the one end of the conical pipe (1) far from pitot tube body
Equipped with the first air inlet (12), so that air-flow enters the first tube body (21)；Second tube body (22) is equipped with the second air inlet
(23), so that air-flow enters the second tube body (22).
6. pitot according to claim 5, it is characterised in that: the one of first tube body (21) separate conical pipe (1)
End is connected with dynamic pressure tube (3), and the dynamic pressure tube (3) is connected to the first tube body (21) and the angle between the first tube body (21) is
Obtuse angle；Second tube body (22) is connected with static tube (4) far from the one end of conical pipe (1), the static tube (4) and the second pipe
Body (22) is connected to and is parallel to dynamic pressure tube (3) setting.
7. pitot according to claim 6, it is characterised in that: the shell is set to static tube (4) and dynamic pressure tube (3) outside
And the shell is connected with pitot tube body.
8. pitot according to claim 7, it is characterised in that: the junction of the shell and pitot tube body, which is equipped with, to be used
In the connector (7) for being bonded shell and pitot tube body.
9. pitot according to claim 8, it is characterised in that: the shell includes symmetrically arranged first shell (51)
With second shell (52), it is fixedly connected between the first shell (51) and second shell (52).
10. pitot according to claim 9, it is characterised in that: second tube body (22) respectively with the first tube body
(21), the connection material of conical pipe (1) and shell is resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822273837.XU CN209400562U (en) | 2018-12-29 | 2018-12-29 | A kind of pitot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822273837.XU CN209400562U (en) | 2018-12-29 | 2018-12-29 | A kind of pitot |
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| Publication Number | Publication Date |
|---|---|
| CN209400562U true CN209400562U (en) | 2019-09-17 |
Family
ID=67897343
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822273837.XU Active CN209400562U (en) | 2018-12-29 | 2018-12-29 | A kind of pitot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209400562U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630466A (en) * | 2020-12-03 | 2021-04-09 | 深圳市蜉飞科技有限公司 | Airspeed meter is with pneumatic collection structure and fixed wing unmanned aerial vehicle |
| CN112649621A (en) * | 2019-10-11 | 2021-04-13 | 上海峰飞航空科技有限公司 | Integrated heating airspeed head and unmanned aerial vehicle comprising same |
| CN113866451A (en) * | 2021-12-06 | 2021-12-31 | 大同航源众诚动力科技有限公司 | Civil aircraft airspeed head self-separation protective sleeve |
-
2018
- 2018-12-29 CN CN201822273837.XU patent/CN209400562U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649621A (en) * | 2019-10-11 | 2021-04-13 | 上海峰飞航空科技有限公司 | Integrated heating airspeed head and unmanned aerial vehicle comprising same |
| CN112649621B (en) * | 2019-10-11 | 2024-05-14 | 上海峰飞航空科技有限公司 | Integral type heating airspeed tube and contain its unmanned aerial vehicle |
| CN112630466A (en) * | 2020-12-03 | 2021-04-09 | 深圳市蜉飞科技有限公司 | Airspeed meter is with pneumatic collection structure and fixed wing unmanned aerial vehicle |
| CN112630466B (en) * | 2020-12-03 | 2023-10-31 | 深圳市蜉飞科技有限公司 | Airspeed meter is with atmospheric pressure collection structure and fixed wing unmanned aerial vehicle |
| CN113866451A (en) * | 2021-12-06 | 2021-12-31 | 大同航源众诚动力科技有限公司 | Civil aircraft airspeed head self-separation protective sleeve |
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