Novel light airplane static pressure valve connecting structure
The design of the nylon mounting base and the elbow joint solves the problem of unstable connection of the static pressure valve in light aircraft, achieving a stable connection and convenient maintenance, and reducing operating costs.
Patent Information
- Application Number
- CN202520575130.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Traditional static pressure valve connections are not secure enough in light aircraft and are prone to loosening due to airflow impact and fuselage vibration, affecting the accuracy of static pressure measurements.
The connection structure uses a nylon mounting base and a bend fitting, taking advantage of the wear resistance and sealing properties of nylon material. It allows for quick locking and unlocking through simple rotation and tightening, enhancing the stability of the connection.
This achieves a stable connection for the static pressure valve, facilitating installation, disassembly, and maintenance, avoiding measurement inaccuracies caused by loosening, and reducing operating costs and downtime.
Smart Images
Figure CN223881978U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of airplane static pressure valve mounting structure, more specifically relates to a novel light aircraft static pressure valve connecting structure. BACKGROUND
[0002] The full static pressure system, also known as "pitot tube system", is used to collect the full pressure and static pressure of airflow and deliver them to flight instruments and sensors. It is composed of a full static pressure device and its pipeline system. The full pressure is introduced from the front of the full static pressure device; the static pressure is introduced from the side wall hole of the full static pressure device, or can be taken from the static pressure receiving hole in the front side wall of the fuselage. During the flight of a light aircraft, the static pressure valve is crucial for accurately measuring the atmospheric static pressure around the aircraft, so the connection of the static pressure valve is also particularly important. However, the traditional static pressure valve connection method is relatively complex and has many shortcomings, such as unstable connection, which is easily affected by airflow impact and fuselage vibration during flight, leading to loosening and affecting the accuracy of static pressure measurement. Therefore, a static pressure valve connection structure that is easy to install and connect and has good stability is needed. SUMMARY
[0003] The utility model aims at the deficiencies of the prior art and provides a novel light aircraft static pressure valve connecting structure, which is simple and compact in structure, easy and stable to install and connect, and facilitates subsequent maintenance and repair work.
[0004] A novel light aircraft static pressure valve connecting structure, comprising a bracket plate arranged on a light aircraft, a rectangular nylon mounting seat arranged on the upper side of the bracket plate, a vertical air hole formed in the middle of the nylon mounting seat, an upper screw hole and a lower screw hole formed in the upper and lower parts of the nylon mounting seat respectively and connected to the air hole, a bend pipe joint screwed into the upper screw hole of the nylon mounting seat, and a static pressure tube inserted into the bend pipe joint; a through hole opposite to the air hole is formed in the bracket plate, and a static pressure valve is screwed into the lower screw hole of the nylon mounting seat through the through hole of the bracket plate.
[0005] Opposite diagonal corners of the nylon mounting seat are formed with vertical mounting holes, and a nut is fixedly screwed into the mounting holes of the bracket plate and the nylon mounting seat by a fastening bolt.
[0006] Preferably, the center axis of the air hole, the center axis of the upper screw hole, and the center axis of the lower screw hole of the nylon mounting seat are on the same straight line.
[0007] The hole diameter of the air hole is smaller than the hole diameters of the upper screw hole and the lower screw hole.
[0008] Preferably, an upper sealing washer and a lower sealing washer are respectively inserted into the upper screw hole and the lower screw hole of the nylon mounting seat, and the upper sealing washer is clamped and fixed between the nylon mounting seat and the bend pipe joint.
[0009] Preferably, the upper screw hole bottom surface around the vent hole is formed with a plurality of stepped holes penetrating the lower screw hole bottom surface, and the upper end surface of the lower sealing washer is formed with a plurality of clamping joints, which are clamped in the stepped holes of the nylon mounting seat.
[0010] Preferably, the pipe bend joint is a right-angle pipe bend joint, and the end of the pipe bend joint is formed with a pagoda joint, and the static pressure pipe sleeve is fixed on the pagoda joint.
[0011] Preferably, the hole diameter of the through hole on the support plate is larger than the hole diameter of the upper and lower screw holes on the nylon mounting seat, and the support plate is formed with a jack hole opposite to the mounting hole.
[0012] The beneficial effects of the utility model lie in:
[0013] The aircraft static pressure valve connection structure is simple and compact, convenient to install and connect, and stable; can facilitate subsequent maintenance and repair work, and can avoid the increase of aircraft operation cost and downtime. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is a structural schematic view of the utility model;
[0015] Fig. 2 It is a three-dimensional structural schematic view of the nylon mounting seat in the utility model;
[0016] Fig. 3 It is a sectional view structural schematic view of the nylon mounting seat in the utility model.
[0017] In the drawing: 1, support plate; 2, nylon mounting seat; 21, vent hole; 22, upper screw hole; 23, lower screw hole; 24, mounting hole; 25, stepped hole; 3, pipe bend joint; 31, pagoda joint; 4, static pressure valve; 5, fastening bolt; 6, nut; 7, lower sealing washer; 71, clamping joint. CONCRETE IMPLEMENTATION
[0018] Embodiment: see Figs. 1 to 3 The utility model discloses a novel light aircraft static pressure valve connection structure, including setting up on light aircraft support plate 1, the upper side of support plate 1 is equipped with rectangular nylon mounting seat 2, and the middle part of nylon mounting seat 2 is formed with vertical vent hole 21, and the upper and lower parts of nylon mounting seat 2 are formed with upper screw hole 22 and lower screw hole 23 respectively, and upper screw hole 22 in nylon mounting seat 2 is screwed with pipe bend joint 3, and static pressure pipe is inserted into pipe bend joint 3 and is fixedly connected;
[0019] The diagonal of the nylon mounting seat 2 is respectively formed with a vertical mounting hole 24, and the fastening bolt 5 is screwed and fixed with the nut 6 through the mounting hole 24 of the bracket plate 1 and the nylon mounting seat 2.
[0020] The center axis of the ventilation hole 21, the center axis of the upper threaded hole 22 and the center axis of the lower threaded hole 23 of the nylon mounting seat 2 are on the same straight line.
[0021] The hole diameter of the ventilation hole 21 is respectively smaller than the hole diameter of the upper threaded hole 22 and the lower threaded hole 23.
[0022] The upper sealing washer and the lower sealing washer 7 are respectively inserted in the upper threaded hole 22 and the lower threaded hole 23 of the nylon mounting seat 2, the upper sealing washer is clamped and fixed between the nylon mounting seat 2 and the elbow joint 3, and the sealing performance is improved through the upper sealing washer and the lower sealing washer 7.
[0023] Preferably, a plurality of stepped holes 25 penetrating the bottom surface of the lower threaded hole 23 are formed on the bottom surface of the upper threaded hole 22 around the ventilation hole 21, a plurality of clamping joints 71 are formed on the upper end surface of the lower sealing washer 7, the clamping joint 71 is clamped in the stepped hole 25 of the nylon mounting seat 2, and the clamping joint 71 comprises a connecting column inserted in the stepped hole 25, a mushroom-shaped limiting head is formed on the top end of the connecting column, and the limiting head abuts against the stepped surface of the stepped hole 25.
[0024] Because the lower sealing washer 7 is arranged at the lower part of the nylon mounting seat 2, in order to prevent it from falling, the clamping mode is adopted to arrange it in the nylon mounting seat 2, and the subsequent maintenance operation can be facilitated.
[0025] The elbow joint 3 adopts a right-angle elbow joint, a pagoda joint 31 is formed at the end of the elbow joint 3, and the static pressure pipe sleeve is fixed on the pagoda joint 31, so that the static pressure pipe can be sleeved on the pagoda joint 31, and the installation and connection are convenient.
[0026] The hole diameter of the through hole of the bracket plate 1 is greater than the hole diameter of the lower threaded hole 23 of the nylon mounting seat 2, and the bracket plate 1 is formed with the insertion hole opposite to the mounting hole 24.
[0027] Working principle: the structure is a new type of light aircraft static pressure valve connecting structure, the main technical point of the connecting structure is to design the nylon mounting seat 2, the nylon mounting seat 2 serves as an intermediate carrier for connecting the static pressure pipe and the static pressure valve 4, in order to facilitate installation, the elbow joint 3 is additionally arranged.
[0028] The nylon mounting seat 2 is made of nylon material, the nylon material has various characteristics, including excellent wear resistance, sealing performance, good mechanical strength and heat resistance, etc., and through simple rotation and tightening, rapid locking and unlocking can be realized, the installation, disassembly and maintenance of the static pressure valve 4 are facilitated, and in the locked state, stable connection force can be provided to ensure that the static pressure valve 4 will not loosen during flight.
[0029] In the subsequent maintenance and repair work, when the static pressure valve 4 needs to be maintained or repaired, only need to unscrew the static pressure valve 4 counterclockwise, and the lower sealing washer 7 will not fall off, complete the repair of the static pressure valve 4, and then screw up;
[0030] At the same time, the nylon mounting seat 2, the elbow joint 3 and other components can be checked regularly, such as checking whether the nylon mounting seat 2 has loose signs, whether the elbow joint 3 has wear or aging, etc., if the problem is found, tighten or replace the corresponding components in time to ensure the performance of the connecting structure.
[0031] The embodiments are used to illustrate the utility model, and are not used to limit the utility model. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the utility model, and therefore the protection scope of the utility model should be as listed in the claims of the utility model.
Claims
1. A novel light aircraft static pressure valve connecting structure, comprising a bracket plate (1) arranged on a light aircraft, the upper side of the bracket plate (1) being provided with a rectangular nylon mounting seat (2), characterized in that: The middle part of the nylon mounting base (2) is formed with a vertical vent hole (21), the upper and lower parts of the nylon mounting base (2) are respectively formed with an upper screw hole (22) and a lower screw hole (23) which are communicated with the vent hole (21), the upper screw hole (22) of the nylon mounting base (2) is screwed with a elbow joint (3), the elbow joint (3) is inserted and fixed with a static pressure pipe; the support plate (1) is formed with a through hole which is opposite to the vent hole (21), a static pressure valve (4) is screwed in the lower screw hole (23) of the nylon mounting base (2) through the through hole of the support plate (1); The diagonal parts of the nylon mounting base (2) are respectively formed with vertical mounting holes (24), a fastening bolt (5) is screwed and fixed with a nut (6) through the mounting holes (24) of the support plate (1) and the nylon mounting base (2).
2. A new type of light aircraft static pressure valve connection structure according to claim 1, characterized in that: The center axis of the vent hole (21), the center axis of the upper screw hole (22) and the center axis of the lower screw hole (23) of the nylon mounting base (2) are on the same straight line; The hole diameter of the vent hole (21) is smaller than the hole diameters of the upper screw hole (22) and the lower screw hole (23).
3. A new type of light aircraft static pressure valve connection structure according to claim 2, characterized in that: The upper and lower screw holes (22, 23) of the nylon mounting base (2) are respectively inserted with upper and lower sealing gaskets (7), the upper sealing gasket is clamped and fixed between the nylon mounting base (2) and the elbow joint (3).
4. The new light aircraft static pressure valve connection structure according to claim 3, characterized in that: The bottom surface of the upper screw hole (22) around the vent hole (21) is formed with a plurality of stepped holes (25) which penetrate the bottom surface of the lower screw hole (23), the upper end surface of the lower sealing gasket (7) is formed with a plurality of clamping joints (71), the clamping joints (71) are clamped in the stepped holes (25) of the nylon mounting base (2).
5. The new light aircraft static pressure valve connection structure according to claim 1, characterized in that: The elbow joint (3) is a right-angle elbow joint, the end of the elbow joint (3) is formed with a pagoda joint (31), the static pressure pipe is inserted and fixed on the pagoda joint (31).
6. A new type of light aircraft static pressure valve connection structure according to claim 1, characterized in that: The hole diameter of the through hole of the support plate (1) is larger than the hole diameters of the upper and lower screw holes (23) of the nylon mounting base (2), the support plate (1) is formed with a plug hole which is opposite to the mounting hole (24).