CN212807465U - Airtight inspection anchor clamps in airspeed head static pressure hole - Google Patents
Airtight inspection anchor clamps in airspeed head static pressure hole Download PDFInfo
- Publication number
- CN212807465U CN212807465U CN202021425072.8U CN202021425072U CN212807465U CN 212807465 U CN212807465 U CN 212807465U CN 202021425072 U CN202021425072 U CN 202021425072U CN 212807465 U CN212807465 U CN 212807465U
- Authority
- CN
- China
- Prior art keywords
- hinge
- hole
- static pressure
- screw
- pressure hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention belongs to a tooling clamp, and relates to an air tightness inspection clamp for a static pressure hole of an airspeed head, which comprises an upper hinge (1), a lower hinge (2), a hinge shaft (3), a screw (4) with a hole and a butterfly nut (5); the upper hinge (1) consists of a hinge part and 1 pagoda-shaped hose connecting nozzle, one end of the hinge part is provided with a hinge shaft opening, the other end of the hinge part is provided with a concave clamping groove, the 1 pagoda-shaped hose connecting nozzle is welded to the hinge part, and an air hole in the pagoda-shaped hose connecting nozzle is communicated with the hinge part; two ends of the lower hinge (2) are provided with hinge shaft holes; the two hinge shafts (3) are respectively connected with the upper hinge (1) and the lower hinge (2), and the lower hinge (2) and the screw (4) with the hole; the screw (4) with the hole is connected with the lower hinge (2) through the hinge shaft (3) and then can rotate; the butterfly nut (5) is screwed on the screw (4) with the hole, and the clamp can be screwed down without a third party tool.
Description
Technical Field
The invention relates to an air tightness inspection clamp for a static pressure hole of an airspeed head.
Background
The aircraft total static pressure system is used for sensing the total pressure of the aircraft head-on airflow and the external atmospheric static pressure, and transmitting the total pressure and the static pressure to an atmospheric data computer, an emergency backup instrument, a cabin pressure adjusting device and the like which need the total pressure and the static pressure through total pressure and static pressure pipelines on the aircraft, so that each device can calculate flight atmospheric parameters and adjust the cabin pressure. The static pressure hole on the airspeed head is the source of static pressure information on the aircraft, and the static pressure measurement accuracy is directly related to the flight parameter calculation accuracy, so that the flight safety is influenced. Therefore, it is very important to obtain accurate static pressure information.
Static pressure system gas tightness and the inspection of unblocked nature are an important link of guaranteeing the static pressure system performance, and current airspeed tube static pressure hole airtight inspection anchor clamps are mostly ring formula or square frame formula, need follow during the airspeed tube front end cover advances the airspeed tube during the use to remove static pressure hole trompil position along the airspeed tube, use the time-consuming duration and probably damage the airspeed tube, use inconvenient.
Disclosure of Invention
The purpose of the invention is: in order to solve the problems, the invention provides an air tightness inspection clamp for a static pressure hole of a pitot tube, which can be directly clamped and fixed at the position of the static pressure hole of the pitot tube without moving from the head of the pitot tube to the position of the static pressure hole, so that the pitot tube is prevented from being damaged and maintenance time is prevented from being wasted. The air tightness checking time can be effectively reduced, and the risk of damaging the airspeed head is reduced.
The technical scheme of the invention is as follows:
an air tightness inspection clamp for a static pressure hole of an airspeed head comprises an upper hinge 1, a lower hinge 2, a hinge shaft 3, a screw 4 with a hole and a butterfly nut 5; the upper hinge 1 consists of a hinge part and 1 pagoda-shaped hose connecting nozzle, one end of the hinge part is provided with a hinge shaft opening, the other end of the hinge part is provided with a concave clamping groove, the 1 pagoda-shaped hose connecting nozzle is welded to the hinge part, and an air hole in the pagoda-shaped hose connecting nozzle is communicated with the hinge part; two ends of the lower hinge 2 are provided with hinge shaft holes; the two hinge shafts 3 are respectively connected with the upper hinge 1 and the lower hinge 2, and the lower hinge 2 and the screw 4 with the hole; the screw 4 with the hole is connected with the lower hinge 2 through the hinge shaft 3 and then can rotate; the wing nut 5 is screwed on the screw 4 with the hole, and the clamp can be screwed down without a third party tool.
The hinge part of the upper hinge 1 and the lower hinge 2 is of a bent arch structure, and the bending radius of the inner surface of the hinge part is 0.5-2 mm larger than the radius of the static pressure hole of the clamped airspeed head.
Further comprising: and the rubber pad 6 is adhered to the inner surfaces of the upper hinge 1 and the lower hinge 2.
The pagoda-shaped hose nipple is connected with a rubber tube of the testing equipment.
The upper hinge 1, the lower hinge 2 and the hinge shaft 3 are stainless steel components.
The perforated screws 4 and the butterfly nuts 5 are stainless steel parts.
The invention has the beneficial effects that:
the invention provides an air tightness inspection clamp for a static pressure hole of a pitot tube, which is designed by the method, is in a hinge type, and a butterfly nut is designed for fastening the clamp, so that the air tightness inspection clamp is ingenious and novel in design, labor-saving and convenient to use, and can realize the quick connection of the static pressure hole of the pitot tube and the air tightness inspection clamp. Can directly press from both sides tightly fixedly in airspeed tube static pressure hole position department, need not to remove static pressure hole department from the airspeed tube head, avoid damaging airspeed tube and extravagant maintenance time. The air tightness checking time can be effectively reduced, and the risk of damaging the airspeed head is reduced.
Drawings
FIG. 1 is a schematic block diagram of an exemplary embodiment of the present invention;
wherein, 1-upper hinge, 2-lower hinge, 3-hinge shaft, 4-screw with hole, 5-butterfly nut, 6-rubber pad
FIG. 2 is a schematic view of the upper hinge of the present invention;
FIG. 3 is a schematic view of the construction of the lower hinge of the present invention;
FIG. 4 is a schematic view of the hinge shaft of the present invention;
FIG. 5 is a schematic structural view of the wing nut of the present invention;
FIG. 6 is a schematic view of the structure of the screw with holes of the present invention;
fig. 7 is a schematic structural view of the rubber pad of the present invention.
Detailed Description
The invention is further illustrated by the following specific embodiments:
fig. 1 is a schematic structural view of an exemplary embodiment of the present invention. Wherein, 1-upper hinge, 2-lower hinge, 3-hinge shaft, 4-screw with hole, 5-butterfly nut, 6-rubber pad.
As shown in fig. 1-7, the upper hinge 1 consists of a hinge part and 1 pagoda-shaped hose connector, the hinge part is of a bent arch structure, the bending radius of the inner surface of the hinge part is 0.5-2 mm larger than the radius of a static pressure hole of a clamped airspeed head, and the gap is used for adhering a rubber pad so as to ensure the air tightness after clamping; one end of the hinge part is provided with a hinge shaft opening for connecting the lower hinge 2; the other end of the hinge part is provided with a concave clamping groove which is used as a buckle of a screw 4 with a hole; 1 pagoda-shaped hose connector is used for connecting an airtight pipeline and is connected with a rubber pipe of a test device; the hose connecting nozzle is welded to the hinge part, and an air hole in the pagoda-shaped hose connecting nozzle is communicated with the hinge part;
the hinge part of the lower hinge 2 is of a bent arch structure, the bending radius of the inner surface of the lower hinge is 0.5-2 mm larger than the radius of the static pressure hole of the clamped airspeed head, and the gap is used for adhering a rubber pad to ensure the air tightness after clamping; two ends are provided with holes for hinge shafts, one section of the holes is connected with an upper hinge 1, and the other end is connected with a screw 4 with a hole;
the hinge shaft 3 is respectively connected with the upper hinge 1 and the lower hinge 2, and the lower hinge 2 and the screw 4 with the hole;
the screw 4 with the hole consists of a through hole part and a thread part, and the through hole part is connected with the lower hinge 2 through the hinge shaft 3 and then can rotate; the thread part is used for connecting the butterfly nut 5;
the butterfly nut 5 is screwed on the perforated screw 4, and after the perforated screw 4 is clamped into the concave clamping groove of the upper hinge 1, the clamp can be screwed down without a third-party tool;
the inner surfaces of the upper hinge 1 and the lower hinge 2 are pasted with the rubber pads 6, the rubber pad openings on the surface of the upper hinge 1 are pasted with the hose connecting nozzle air passage, the air tightness can be guaranteed at the periphery of the rubber gasket after the rubber gasket is compressed, the opening positions of the rubber gasket are communicated with the static pressure hole position of the pitot tube and the through hole of the hose connecting nozzle, and the air tightness and the smoothness of the static pressure system can be checked by external connection pipelines and air tightness checking equipment.
In order to solve the problems, the invention provides an air tightness inspection clamp for a static pressure hole of a pitot tube, which is hinged and fixed without a third-party tool, can be directly clamped and fixed at the position of the static pressure hole of the pitot tube, and does not need to be moved to the position of the static pressure hole from the head of the pitot tube, so that the pitot tube is prevented from being damaged and maintenance time is avoided. The air tightness checking time can be effectively reduced, and the risk of damaging the airspeed head is reduced. The air tightness inspection clamp for the static pressure hole of the airspeed tube, which is designed by the method, can be directly clamped and fixed at the position of the static pressure hole of the airspeed tube without moving from the tube head of the airspeed tube to the position of the static pressure hole, so that the airspeed tube is prevented from being damaged and maintenance time is avoided. The air tightness and smoothness inspection time can be effectively reduced, and the risk of damaging the airspeed head is reduced. The design is ingenious, novel, labor-saving and convenient to use, and therefore the practicability is good.
Claims (6)
1. The utility model provides an airtight inspection anchor clamps of airspeed head static pressure hole which characterized in that: comprises an upper hinge (1), a lower hinge (2), a hinge shaft (3), a screw with a hole (4) and a butterfly nut (5); the upper hinge (1) consists of a hinge part and 1 pagoda-shaped hose connecting nozzle, one end of the hinge part is provided with a hinge shaft opening, the other end of the hinge part is provided with a concave clamping groove, the 1 pagoda-shaped hose connecting nozzle is welded to the hinge part, and an air hole in the pagoda-shaped hose connecting nozzle is communicated with the hinge part; two ends of the lower hinge (2) are provided with hinge shaft holes; the two hinge shafts (3) are respectively connected with the upper hinge (1) and the lower hinge (2), and the lower hinge (2) and the screw (4) with the hole; the screw (4) with the hole is connected with the lower hinge (2) through the hinge shaft (3) and then can rotate; the butterfly nut (5) is screwed on the screw (4) with the hole, and the clamp can be screwed down without a third party tool.
2. The air tightness inspection clamp for the static pressure hole of the pitot tube according to claim 1, is characterized in that: the hinge comprises an upper hinge (1) and a lower hinge (2), wherein the hinge part is of a bent arch structure, and the bending radius of the inner surface of the hinge part is 0.5-2 mm larger than the radius of a static pressure hole of a clamped airspeed head.
3. The air tightness inspection clamp for the static pressure hole of the pitot tube according to claim 2, is characterized in that: further comprising: and the rubber pad (6) is adhered to the inner surfaces of the upper hinge (1) and the lower hinge (2).
4. The air tightness inspection clamp for the static pressure hole of the pitot tube according to claim 1, is characterized in that: the pagoda-shaped hose nipple is connected with a rubber tube of the testing equipment.
5. The air tightness inspection clamp for the static pressure hole of the pitot tube according to claim 1, is characterized in that:
the upper hinge (1), the lower hinge (2) and the hinge shaft (3) are stainless steel components.
6. The air tightness inspection clamp for the static pressure hole of the pitot tube according to claim 1, is characterized in that:
the screw with the hole (4) and the butterfly nut (5) are stainless steel parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021425072.8U CN212807465U (en) | 2020-07-17 | 2020-07-17 | Airtight inspection anchor clamps in airspeed head static pressure hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021425072.8U CN212807465U (en) | 2020-07-17 | 2020-07-17 | Airtight inspection anchor clamps in airspeed head static pressure hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212807465U true CN212807465U (en) | 2021-03-26 |
Family
ID=75103287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021425072.8U Active CN212807465U (en) | 2020-07-17 | 2020-07-17 | Airtight inspection anchor clamps in airspeed head static pressure hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212807465U (en) |
-
2020
- 2020-07-17 CN CN202021425072.8U patent/CN212807465U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110793746A (en) | Wind tunnel test device for thrust measurement of oblique cutting nozzle of hypersonic vehicle | |
| CN212807465U (en) | Airtight inspection anchor clamps in airspeed head static pressure hole | |
| CN105806557A (en) | Valve for on-line verification and calibration of pressure gauge | |
| CN110567673B (en) | Wind tunnel test method for thrust measurement of oblique cutting nozzle of hypersonic vehicle | |
| CN212807524U (en) | Take pressure differential hole airtight inspection anchor clamps of viewing aperture | |
| CN112665818A (en) | Acoustic lining flow resistance measurement test device and method | |
| CN210293614U (en) | Wall static pressure measuring device for thin-wall structure | |
| KR20150078502A (en) | Apparatus for monitoring the wall thinning of real time high temperature pipe using waveguide of sh-wave | |
| CN208888063U (en) | It is a kind of for testing the device of sebific duct compressive resistance | |
| CN212620413U (en) | Digital display caliper calibrating device | |
| CN207050914U (en) | A kind of air pressure calibrating installation of pressure acquisition devices | |
| CN210375613U (en) | Wind tunnel test device for thrust measurement of oblique cutting nozzle of hypersonic vehicle | |
| CN209069492U (en) | A kind of cable pneumatic compression joint air pressure monitor tooling | |
| CN209198482U (en) | A kind of Pitot tube and anemobiagraph probe fixture | |
| CN103645053B (en) | A kind of airtight bearing test clamping device | |
| CN207502458U (en) | A kind of Magnetic testing Calibration Piece for Sensitivity stent | |
| CN112197913A (en) | Sliding type pipeline leakage point detection positioning device and detection positioning method thereof | |
| CN206318039U (en) | A kind of Portable aircraft hydraulic system fault somascope | |
| CN209459842U (en) | A kind of water pipe test device | |
| CN213543679U (en) | Self-adaptive pitot tube | |
| CN105370429A (en) | High-power gas engine air cylinder provided with pressure measuring device | |
| CN219977710U (en) | Test device of breather valve | |
| CN109521217A (en) | Pitot tube and anemobiagraph probe fixing device | |
| CN206192623U (en) | First LED of miniature camera combination formula image sensor | |
| CN219624891U (en) | Vibration acceleration sensor fixing tool for vibration test of hydraulic pipeline of airplane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |