CN212766772U - Standard bulb-shaped ventilation opening of airplane environment control system - Google Patents
Standard bulb-shaped ventilation opening of airplane environment control system Download PDFInfo
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- CN212766772U CN212766772U CN202021712255.8U CN202021712255U CN212766772U CN 212766772 U CN212766772 U CN 212766772U CN 202021712255 U CN202021712255 U CN 202021712255U CN 212766772 U CN212766772 U CN 212766772U
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Abstract
The utility model discloses an aircraft environmental control system standard bulb shape vent, including flow direction regulation bulb subassembly, shell, import pipe overcoat and import pipe. The dry air after being cooled, depressurized and dehumidified by the environment control system of the airplane enters the ventilation opening through the inlet pipe, and the flow rate and the windward direction of the cooling air are controlled by the driver and the passengers through the flow rate and direction adjusting ball head assembly. The shell is assembled with the flow direction adjusting ball head assembly, and mainly plays a role in controlling the windward direction, ensuring the adjustment to be moved and locking. And the shell can also be designed correspondingly according to the interface on the airplane to form the installation of the ventilation opening. The import pipe overcoat is connected with shell and import pipe, plays the effect of fixed import pipe.
Description
Technical Field
The utility model belongs to the technical field of the air distribution subsystem among the aircraft environmental control system, a standard bulb shape vent structural design is related to.
Background
The cabin vent is a terminal accessory of an air distribution subsystem in an environmental control system of military and civil aircrafts, directly faces to passengers and is the only accessory for interaction between the environmental control system of the aircrafts and the passengers, the ball-head type vent is widely used in civil aircrafts at present, and the ball-head type vent is assembled in domestic 2-3 generations of military aircrafts.
At present, civil aircrafts just start at home, and the used ventilation openings are basically limited by foreign manufacturers. Taking a C919 airplane as an example, the ventilation opening is matched according to 190 sets/frames. Due to the large matching amount, a system design is necessary. Cabin vents require an adaptive design of the appearance to match the aircraft cabin in addition to the basic venting function. The use and adjustment experience of the attachment by the flight crew will be the most direct human experience of the aircraft design grade.
Disclosure of Invention
The utility model aims at providing a structure of aircraft environmental control system standard bulb shape vent to different aircraft installation user demands, only need correspond the design on the shell of vent, and its key component flow direction adjusts bulb subassembly and forms standardized design, and then improves the standardized design level of aircraft, reduces the development risk that new construction application brought.
The utility model discloses a realize through following technical scheme:
a standard ball head-shaped ventilation opening of an aircraft environmental control system comprises a flow direction adjusting ball head component, wherein the flow direction adjusting ball head component mainly comprises a flow adjusting knob, a flow control valve component, a lock catch type transmission sleeve, a compression spring, a ball head and a lug-free check ring vulcanization assembly, wherein,
the ball head is a ball belt obtained by cutting a ball body in a pair of parallel planes, a first through hole is formed in the bottom surface of the ball belt and along the axis direction of the ball belt, and an annular step, a first annular groove, a first thread and a second annular groove are sequentially arranged on the inner wall of the first through hole and along the axis direction of the first through hole;
the flow adjusting knob comprises a connecting part arranged in a first through hole of the ball head and a body positioned outside the ball head, the outer diameter of the connecting part is smaller than or equal to the inner diameter of the annular step, the outer diameter of the body is larger than the inner diameter of the annular step, a second through hole penetrating through the end surface of the connecting part is formed in the end surface of the body, the second through hole is a variable-section hole, and a buckle is arranged on the outer surface of the connecting part;
the flow control valve assembly comprises a valve core positioned in the second through hole, the valve core is of a variable cross-section structure, the maximum outer diameter of the valve core is larger than the minimum inner diameter of the second through hole, the other end of the valve core is connected with a ring body through a plurality of transmission clamping strips, the ring body is coaxial with the valve core and positioned in the first through hole, and second threads matched with the first threads are machined on the outer surface of the ring body;
the lock catch type transmission sleeve is a hollow revolving body which is arranged in the first through hole of the ball head and has the maximum outer diameter larger than the inner diameter of the annular step, one end of the lock catch type transmission sleeve is provided with a bayonet and is connected with the buckle on the outer surface of the connecting part of the flow adjusting knob through the bayonet, the surface of the other end of the lock catch type transmission sleeve is provided with a clamping groove, and the transmission clamping strip is arranged in the clamping groove;
the compression spring is positioned in an annular gap between the outer surface of the lock catch type transmission sleeve and the first annular groove;
the earless retainer ring vulcanization assembly is positioned in the second ring groove, and the end face of the earless retainer ring vulcanization assembly is tightly attached to the ring body.
Further, the standard bulb-shaped ventilation opening of the aircraft environmental control system further comprises a shell, a third through hole is formed in the shell along the axis direction of the shell, a first bulge is arranged on the inner wall of the third through hole, the inner surface of the first bulge is a first spherical zone surface, and the maximum inner diameter of the first spherical zone surface is equal to the maximum outer diameter of the bulb.
Furthermore, a damping ring is arranged in a third through hole of the shell and clings to the lower end face of the first bulge, the inner surface of the damping ring is a second spherical zone surface, the maximum inner diameter of the second spherical zone surface is equal to the maximum outer diameter of the ball head, and the second spherical zone surface and the first spherical zone surface are combined to form a spherical zone surface which takes the maximum outer diameter plane of the ball head as a datum plane and extends towards two sides of the datum plane.
Furthermore, a third annular groove is formed in the inner wall of a third through hole of the shell, a gap is formed between the third annular groove and the damping ring, a lug-free check ring is installed in the third annular groove, and the inner diameter of the lug-free check ring is larger than or equal to the maximum outer diameter of the ball head.
Preferably, a wave spring is arranged between the earless retainer ring and the damping ring.
Preferably, the outer surface of the shell is provided with a second protrusion.
Furthermore, the standard ball-head-shaped ventilation opening of the airplane environment control system also comprises an inlet pipe outer sleeve and an inlet pipe, wherein the inlet pipe outer sleeve is an annular piece, a fourth ring groove is processed on the inner wall of the inlet pipe outer sleeve, and the shell is arranged in an inner ring of the inlet pipe outer sleeve; and a third bulge matched with the fourth ring groove is arranged on the outer surface of one end of the inlet pipe, and a fourth bulge arranged in a third through hole of the shell is arranged on the third bulge.
Furthermore, the second through hole comprises a conical hole and a cylindrical hole which are connected, and the small-section end of the conical hole is positioned on the end face of the flow adjusting knob body.
Further, the bayonet socket is a plurality of breachs that distribute along lock catch type transmission cover terminal surface circumference, the buckle is a plurality of archs that are located flow control knob connecting portion surface, and bellied quantity is unanimous with breach quantity.
The structure design of the standard bulb-shaped ventilation opening of the airplane environment control system comprises a flow direction adjusting bulb component, a shell, an inlet pipe outer sleeve and an inlet pipe; the ball head subassembly is adjusted to flow direction the utility model discloses a key, flow control function mainly is accomplished by the bulb, and direction control function mainly is accomplished by flow direction adjusting ball head subassembly and shell cooperation.
Compared with the prior art, the utility model discloses an aircraft environmental control system standard bulb shape vent includes flow direction regulation bulb subassembly, shell, import pipe overcoat and import pipe. The flow and wind direction of the ventilation opening are completely adjusted by the flow direction adjusting ball head assembly.
The flow direction adjusting ball head component and the shell are connected with each other, and an elastic damping ring, a wave spring and a lug-free check ring are arranged in the flow direction adjusting ball head component, so that the flow direction adjusting ball head component is adjusted to move and lock in the direction control.
The flow direction adjusting ball head component is mutually matched and connected with the lock catch type transmission sleeve, the compression spring, the ball head and the earless retainer ring vulcanization combination key component through the flow adjusting knob and the flow control valve component, so that when the flow adjusting knob is rotated, the valve core of the flow control valve moves up and down along the axis, and the function of controlling the outlet flow is achieved by controlling the gap between the flow adjusting knob and the valve core of the flow control valve component.
Flow direction adjusts the ball head subassembly conduct the utility model discloses the only movable part in the structure, easy dismounting, the structure is reliable, can rise into a standard device design configuration.
Drawings
FIG. 1 is a cross-sectional view of a standard bulb-shaped vent of an aircraft environmental control system;
FIG. 2 is an exploded view of a standard bulb-shaped vent structure of an aircraft environmental control system;
FIG. 3 is a partial sectional view of a wind direction adjustment function of a standard bulb-shaped vent of an aircraft environmental control system;
FIG. 4 is a partial cross-sectional view of a standard bulb-shaped vent flow regulation function of an aircraft environmental control system;
FIG. 5 is an exploded view of a portion of a standard bulb-shaped vent flow regulation function of an aircraft environmental control system;
FIG. 6 is a block diagram of a standard bulb-shaped vent flow control valve assembly of an aircraft environmental control system;
FIG. 7 is a view of a standard bulb-shaped vent flow adjustment knob of an aircraft environmental control system;
FIG. 8 is a diagram of a lock catch type transmission sleeve for a standard ball head shaped vent of an aircraft environmental control system;
FIG. 9 is a diagram of a wave spring structure for a standard bulb-shaped vent of an aircraft environmental control system;
in the figure: 1-flow direction adjusting ball head assembly; 2-a housing; 3-the inlet pipe is sleeved; 4-an inlet pipe; 5-a damping ring; 6-wave spring; 7-no ear check ring; 11-a flow adjustment knob; 12-a flow control valve assembly; 13-locking type transmission sleeve; 14-a hold-down spring; 15-bulb; 16-earless retainer vulcanization assembly.
Detailed Description
The following description of the present invention will be made with reference to the accompanying drawings and specific embodiments, but it should not be understood that the scope of the subject matter of the present invention is limited to the following embodiments, and various modifications, substitutions and alterations according to the common technical knowledge and conventional means in the art are included in the scope of the present invention without departing from the technical spirit of the present invention.
Fig. 1 is a sectional view of a standard bulb-shaped vent of an aircraft environmental control system according to this embodiment. The part of the structure exposed outside mainly comprises a flow direction adjusting ball head component 1, a shell 2, an inlet pipe outer sleeve 3 and an inlet pipe 4, wherein the flow direction adjusting ball head component 1 completes the adjusting function of the air flow and the air direction, and the shell 2 mainly fixes and adjusts the ball head component 1 and the inlet pipe outer sleeve 3 and is connected with an interior decorative plate in an airplane cabin, so that the function of fixing the product is achieved.
Wherein, the shell 2 and the inlet pipe jacket 3 can be made of aluminum alloy or hard plastic. The inlet pipe 4 can be made of a material selected according to the airplane pipeline, such as a thin-wall aluminum alloy pipe.
The external interface of the standard ball-head-shaped ventilation opening structure of the airplane environment control system is mainly realized by the following scheme: an inlet pipe 4 is arranged in an inlet pipe outer sleeve 3, and the inlet pipe outer sleeve 3 is in threaded connection with the shell 2, so that the quasi-spherical-head-shaped ventilation opening can be connected with an air distribution subsystem air passage in an aircraft environment control system. The shell 2 can be designed cooperatively with a mounting hole of an interior trim panel in an aircraft cabin, and the interior trim panel can be clamped by the shell 2 through the pipe outer sleeve 3 or through the screw connection.
Fig. 2 is a schematic view showing an assembly relationship of components of a standard bulb-shaped vent of an aircraft environmental control system in this embodiment.
As shown in fig. 3, which is a schematic view of a wind direction adjusting function structure of a standard bulb-shaped vent of an aircraft environmental control system in this embodiment, the wind direction adjusting function is mainly implemented as follows:
flow direction adjusts ball subassembly 1 from assembling to shell 2 from bottom to top, the design essential of shell 2 is, from bulb 15 central line, upwards design certain thickness (thickness 1), the annular ring the same with bulb 15 radius, ensure that flow direction adjusts ball subassembly 1 can pack into shell 2, and live by the parcel of the radius annular ring of shell 2, bulb 15 central line length is the longest, the transversal behind the surpassing central line all is shorter than the central line, ensure that flow direction adjusts ball subassembly 1 along the ascending locking of axis.
The elastic damping ring 5 is assembled into a gap between the flow direction adjusting ball head assembly 1 and the shell 2 from bottom to top, the design key points of the elastic damping ring 5 are that the starting point of the end face is the center line of the ball head 15, a ring hole with a certain thickness (thickness 2) and the same radius as that of the ball head 15 is designed downwards, and the outer diameter and the inner hole of the shell 2 are designed in a coordinated mode. The flow direction adjusting ball head assembly 1 can be wrapped by the elastic damping ring 5, and the flow direction adjusting ball head assembly 1 is locked downwards along the axis in the same way. The following problems to be solved are the locking of the elastic damping ring 5 in the axial downward direction and the circumferential rotation of the elastic damping ring 5 when the ball head assembly 1 is adjusted in the rotational flow direction.
In the embodiment, the problem that accumulated errors in machining of various parts can cause the non-concentricity of the spherical R of the rotary flow direction adjusting ball head assembly 1, the shell 2 and the elastic damping ring 5 is considered, and the wave spring 6 is specially designed to avoid the problem of adjusting clamping stagnation caused by the non-concentricity of the spherical R of the three parts during direction adjustment. In the process of adjusting the direction, when R is not concentric, the elastic damping ring 5 can be extruded, the elastic damping ring 5 can move downwards along the axis, the wave spring 6 is pressed downwards, the wave spring 6 is deformed under pressure, and the elastic damping ring 5 is given a space for the downward movement of the axis. It is ensured that the flow direction adjusting ball assembly 1 is not stuck in the direction adjustment. The wave spring 6 always applies an upward axial elastic force to the elastic damping ring 5, so that the elastic damping ring 5 can wrap the flow direction adjusting ball head assembly 1 all the time, forward pressure is applied, the friction force between the spherical surface R of the damping ring 5 and the spherical surface R of the ball head 15 is improved, and the adjusted direction can be locked after the direction is adjusted.
Finally, the elastic earless retainer ring 7 is mounted on the shell 2, so that the function of realizing the direction of the structure of the spherical vent can be realized, after the design, the flow direction adjusting ball head assembly 1 can rotate along the sphere center to realize the adjustment of any angle in the adjustable angle range of the spherical surface, and the adjustable angle of the spherical surface can be adjusted within the range of +/-58 degrees in the embodiment.
Wherein, the damping ring 5 can be made of polytetrafluoroethylene, and the wave spring 6 and the ear-free elastic retainer ring 7 are made of stainless steel.
As shown in fig. 4, the structural diagram of the flow regulation function of the standard bulb-shaped vent of the aircraft environmental control system of the embodiment is shown, and the flow regulation function is mainly realized as follows:
the flow adjusting knob 11 is installed into the ball head 15 from top to bottom through a step hole in the upper end face of the ball head 15, the lock catch type transmission sleeve 13 is connected with the flow adjusting knob 11 from bottom to top, and the flow adjusting knob 11 is ensured not to be disengaged from the ball head 15 and the lock catch type transmission sleeve 13 along the axis through matching of the inner end face and the outer end face of the step hole in the upper end face of the ball head 15.
A compression spring 14 is arranged between the ball head 15 and the lock catch type transmission sleeve 13, then the ball head is transferred into the flow control valve assembly 12, three transmission clamping strips 122 of the flow control valve assembly 12 are sleeved into clamping grooves of the lock catch type transmission sleeve 13, the flow control valve assembly 12 is rotated, and helical line external threads on the outer surface of the flow control valve assembly are matched with helical line internal threads in an inner hole of the ball head 15, so that the purpose of adjusting the flow adjusting knob 11 to drive the lock catch type transmission sleeve 13 is achieved; the lock catch type transmission sleeve 13 drives the flow control valve component 12 to rotate along the circumferential direction of the spiral line internal thread in the inner hole of the ball head 15 through the clamping groove to achieve the function of axial stepless movement, so that the problem of controlling the gap between the flow control valve component 12 and the flow adjusting knob 11 is solved, and the adjustment function of the air inlet flow is realized by controlling and adjusting the gap, and the adjustment function is similar to the adjustment of a valve core of a valve.
The purpose of the design of the hold-down spring 14 is to always provide a downward positive pressure for the control flow control valve assembly 12, ensure that the helical thread on the surface of the control flow control valve assembly 12 is attached to the helical thread in the inner hole of the ball head 15, and ensure that the exchanged flow is not changed due to the use environment outside the machine, such as vibration, impact, acceleration and the like, namely the flow can be locked.
Then, a earless retainer ring vulcanization assembly 16 is arranged in a lower annular groove of the ball head 15 to block the flow control valve assembly 12, so that the flow control valve assembly 12 cannot be screwed out of the ball head 15 during maximum flow adjustment. The ear-free retainer ring vulcanization combination key piece 16 is formed by vulcanizing arc-shaped rubber outside the ear-free retainer ring, and aims to enable airflow to run more smoothly.
The flow adjusting knob 11, the flow control valve assembly 12, the lock catch type transmission sleeve 13 and the ball head 15 can be made of aluminum alloy or hard plastic. If aluminum alloy is selected, the surface of the aluminum alloy needs to be subjected to anticorrosion treatment, and hexavalent chromium nano-passivation or trivalent chromium nano-passivation is generally adopted. The pressing spring 14 is made of stainless steel wire and subjected to surface passivation treatment, the earless retainer ring in the earless retainer ring vulcanization combination key piece 16 is made of stainless steel, and the vulcanization piece is made of softer butadiene-acrylonitrile rubber.
As shown in fig. 5, it is a core component of the standard spherical vent of the aircraft environmental control system of the present embodiment: the flow direction adjusts the assembly relation of each part of the ball head assembly.
As shown in fig. 6, which is an assembly relationship of the aircraft environmental control system standard ball-head-shaped vent flow control valve assembly 12 of the present embodiment, in the drawing, the valve core 121 is a variable cross-section structure, the other end of the valve core 121 is connected with a ring body through a plurality of transmission clamping strips 122, the ring body is coaxial with the valve core 121, and an external thread is processed on the outer surface of the ring body.
As shown in fig. 7: the design structure of the flow adjusting knob 11 of the standard bulb-shaped ventilation opening of the aircraft environmental control system is shown in the embodiment.
As shown in fig. 8: the design structure of the lock catch type transmission sleeve 13 of the standard ball-head-shaped vent of the aircraft environmental control system is shown in the embodiment.
Fig. 9 is a schematic structural view of the wave spring 6.
The theory of operation and the structural feature that above is this embodiment all belong to this kind of device of this structural scheme preparation the utility model discloses a protection scope.
Claims (9)
1. The utility model provides an aircraft environmental control system standard bulb shape vent which characterized in that: comprises a flow direction adjusting ball head component (1), the flow direction adjusting ball head component (1) mainly comprises a flow adjusting knob (11), a flow control valve component (12), a lock catch type transmission sleeve (13), a compression spring (14), a ball head (15) and a earless retainer ring vulcanization assembly (16), wherein,
the ball head (15) is a ball belt obtained by cutting a ball body in a pair of parallel planes, a first through hole is formed in the bottom surface of the ball belt and along the axis direction of the ball belt, and an annular step, a first annular groove, a first thread and a second annular groove are sequentially arranged on the inner wall of the first through hole and along the axis direction of the first through hole;
the flow adjusting knob (11) comprises a connecting part arranged in a first through hole of the ball head (15) and a body positioned outside the ball head (15), the outer diameter of the connecting part is smaller than or equal to the inner diameter of the annular step, the outer diameter of the body is larger than the inner diameter of the annular step, a second through hole penetrating through the end surface of the connecting part is formed in the end surface of the body, the second through hole is a variable cross-section hole, and a buckle is arranged on the outer surface of the connecting part;
the flow control valve assembly (12) comprises a valve core (121) positioned in a second through hole, the valve core (121) is of a variable cross-section structure, the maximum outer diameter of the valve core (121) is larger than the minimum inner diameter of the second through hole, the other end of the valve core (121) is connected with a ring body through a plurality of transmission clamping strips (122), the ring body is coaxial with the valve core (121) and positioned in the first through hole, and second threads matched with the first threads are machined on the outer surface of the ring body;
the lock catch type transmission sleeve (13) is a hollow rotary body which is arranged in a first through hole of the ball head (15) and has the maximum outer diameter larger than the inner diameter of the annular step, one end of the lock catch type transmission sleeve (13) is provided with a bayonet and is connected with the buckle on the outer surface of the connecting part of the flow adjusting knob (11) through the bayonet, the surface of the other end of the lock catch type transmission sleeve (13) is provided with a clamping groove, and the transmission clamping strip (122) is arranged in the clamping groove;
the compression spring (14) is positioned in an annular gap between the outer surface of the lock catch type transmission sleeve (13) and the first annular groove;
the earless retainer ring vulcanization assembly (16) is positioned in the second ring groove, and the end surface of the earless retainer ring vulcanization assembly is tightly attached to the ring body.
2. An aircraft environmental control system standard bulb shaped vent according to claim 1, wherein: still include shell (2), on shell (2) and open along shell (2) axis direction has the third through-hole, is provided with first arch on the inner wall of third through-hole, and first bellied internal surface is first spherical zone face, and the biggest internal diameter of first spherical zone face equals the biggest external diameter of bulb (15).
3. An aircraft environmental control system standard bulb shaped vent according to claim 2, wherein: damping ring (5) are installed in the third through hole of shell (2) and hug closely first protruding lower terminal surface, and the internal surface of damping ring (5) is the second spherical zone face, and the biggest internal diameter of second spherical zone face equals the biggest external diameter of bulb (15), and the combination of second spherical zone face and first spherical zone face has formed one and has used the biggest external diameter plane of bulb (15) as the reference surface and to the spherical zone face that the reference surface both sides extend.
4. An aircraft environmental control system standard bulb shaped vent according to claim 3, wherein: a third annular groove is formed in the inner wall of a third through hole of the shell (2), a space is formed between the third annular groove and the damping ring (5), a lug-free check ring (7) is installed in the third annular groove, and the inner diameter of the lug-free check ring (7) is larger than or equal to the maximum outer diameter of the ball head (15).
5. An aircraft environmental control system standard bulb shaped vent according to claim 4, wherein: a wave spring (6) is arranged between the earless retainer ring (7) and the damping ring (5).
6. An aircraft environmental control system standard bulb shaped vent according to claim 2, wherein: and a second bulge is arranged on the outer surface of the shell (2).
7. An aircraft environmental control system standard bulb shaped vent according to claim 2, wherein: also comprises an inlet pipe outer sleeve (3) and an inlet pipe (4),
the inlet pipe outer sleeve (3) is a ring-shaped element, a fourth ring groove is processed on the inner wall of the inlet pipe outer sleeve, and the shell (2) is arranged in the inner ring of the inlet pipe outer sleeve (3);
and a third bulge matched with the fourth annular groove is arranged on the outer surface of one end of the inlet pipe (4), and a fourth bulge arranged in a third through hole of the shell (2) is arranged on the third bulge.
8. An aircraft environmental control system standard bulb shaped vent according to claim 1, wherein: the second through hole comprises a conical hole and a cylindrical hole which are connected, and the small-section end of the conical hole is positioned on the end face of the flow adjusting knob (11) body.
9. An aircraft environmental control system standard bulb shaped vent according to claim 1, wherein: the bayonet socket is a plurality of breachs that distribute along lock catch formula drive sleeve (13) terminal surface circumference, the buckle is a plurality of archs that are located flow control knob (11) connecting portion surface, and bellied quantity is unanimous with breach quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021712255.8U CN212766772U (en) | 2020-08-17 | 2020-08-17 | Standard bulb-shaped ventilation opening of airplane environment control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021712255.8U CN212766772U (en) | 2020-08-17 | 2020-08-17 | Standard bulb-shaped ventilation opening of airplane environment control system |
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| CN212766772U true CN212766772U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021712255.8U Active CN212766772U (en) | 2020-08-17 | 2020-08-17 | Standard bulb-shaped ventilation opening of airplane environment control system |
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| CN (1) | CN212766772U (en) |
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- 2020-08-17 CN CN202021712255.8U patent/CN212766772U/en active Active
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