CN210863059U - Shell airtightness detection tool - Google Patents
Shell airtightness detection tool Download PDFInfo
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- CN210863059U CN210863059U CN201921417547.6U CN201921417547U CN210863059U CN 210863059 U CN210863059 U CN 210863059U CN 201921417547 U CN201921417547 U CN 201921417547U CN 210863059 U CN210863059 U CN 210863059U
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- shell
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- hole
- pressing plate
- sealing rubber
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Abstract
The utility model discloses a shell air tightness detection tool, the bottom end of the shell is open, the top end is assembled with a signal transmission assembly and an observation area through a fastener, and the joint of the fastener and a mounting hole on the shell is an air tightness detection area; casing gas tightness detects frock includes: the device comprises an inflating nozzle, a base, a sealing rubber gasket, a pull rod and a pressing plate; the base and the pressing plate are oppositely arranged and supported by more than two pull rods arranged in parallel, and two ends of each pull rod are respectively locked and fixed with the base and the pressing plate; two ends of the shell are respectively pressed with the base and the pressing plate; a sealing rubber gasket is arranged between the bottom end of the shell and the base and used for sealing between the wall surface of the bottom end of the shell and the base; a through hole is formed in the base, one end of the inflating nozzle is connected with an external air source, and the other end of the inflating nozzle penetrates through the through hole and then is communicated with the interior of the shell through a through hole in a corresponding position on the sealing gasket; the periphery of the inflating nozzle is sealed with the base through hole.
Description
Technical Field
The utility model relates to an aviation detection tool technical field, concretely relates to casing gas tightness detects frock.
Background
Whether the air tightness of the shell of the aviation tachometer is good or not needs to be detected in the maintenance process, and then the interior of the aviation tachometer is maintained.
The internal structure of the aviation tachometer is complex, as shown in fig. 1, one end of a shell 8 of the aviation tachometer is opened, the open end is a bottom end, the other end is a top end, the end part of the top end is provided with an observation area 10 through screws, the periphery of the top end is provided with a signal transmission assembly 9 through screws, the air tightness of the joint of the screws on the shell of the aviation tachometer and the mounting holes on the shell is reduced due to high-speed vibration in the maintenance process, and the possibility of air leakage exists, the maintenance scheme in the prior art is that the opening at the rear part of the shell of the tachometer is sealed through soldering and welding after the maintenance of the internal structure of the tachometer is finished, the whole tachometer is placed in a glass container filled with alcohol after the sealing, whether the joint of each screw and the mounting hole is air leakage is detected through inflation, once the air leakage of the shell of the tacho, the maintenance process is complex, the maintenance quality of the tachometer is reduced, the maintenance difficulty is improved, and the efficiency is low.
Disclosure of Invention
In view of this, the utility model provides a casing gas tightness detects frock, simple structure, convenient disassembling and use repeatedly can show improve equipment's detection quality and maintenance efficiency.
The technical scheme of the utility model is that: a shell airtightness detection tool is characterized in that the bottom end of a shell is provided with an opening, the top end of the shell is provided with a signal transmission assembly and an observation area through a fastening piece, and the joint of the fastening piece and an installation hole in the shell is an airtightness detection area; casing gas tightness detects frock includes: the device comprises an inflating nozzle, a base, a sealing rubber gasket, a pull rod and a pressing plate;
the base and the pressing plate are oppositely arranged and supported by more than two pull rods arranged in parallel, and two ends of each pull rod are respectively locked and fixed with the base and the pressing plate; two ends of the shell are respectively pressed with the base and the pressing plate; a sealing rubber gasket is arranged between the bottom end of the shell and the base and used for sealing between the wall surface of the bottom end of the shell and the base; a through hole is formed in the base, one end of the inflating nozzle is connected with an external air source, and the other end of the inflating nozzle penetrates through the through hole and then is communicated with the interior of the shell through a through hole in a corresponding position on the sealing gasket; the periphery of the inflating nozzle is sealed with the base through hole.
As a preferred scheme, a cylindrical groove is formed in the base, and the end part of the bottom end of the shell abuts against the inner bottom surface of the cylindrical groove through a sealing rubber gasket.
As a preferred scheme, the locking nut for locking and connecting the pressure plate and the pull rod adopts a locking butterfly nut.
Preferably, the aperture of the through hole on the sealing gasket is larger than or equal to the outer diameter of the end part of the inflating nozzle extending into the shell.
Has the advantages that:
(1) the utility model discloses simple structure, convenient disassembling, and can use repeatedly, can show improve equipment's detection quality and maintenance efficiency.
(2) The utility model discloses processing cylindrical recess on the base, making tachometer casing open end card cover in cylindrical recess, be favorable to preventing the tachometer casing slippage from this detection frock.
Drawings
Fig. 1 is the utility model discloses the structure schematic diagram of casing gas tightness detection frock.
Wherein, 1-charging nozzle, 2-locking nut, 3-base, 4-sealing rubber cushion, 5-pull rod, 6-pressing plate, 7-locking butterfly nut, 8-shell, 9-signal transmission component and 10-observation area
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of examples.
Example 1:
the embodiment provides a casing gas tightness detects frock, simple structure, convenient disassembling and use repeatedly, can show improve equipment's detection quality and maintenance efficiency.
As shown in fig. 1, the casing airtightness detection tool is used for performing airtightness detection on a casing of equipment, in this embodiment, the equipment is a tachometer, the top end of an observation area 10 of the tachometer is made of a transparent observable material, and joints between screws and mounting holes in the casing are both airtightness detection areas; this casing gas tightness detects frock includes: the device comprises an inflating nozzle 1, a base 3, a sealing rubber cushion 4, a pull rod 5 and a pressing plate 6;
the base 3 and the pressing plate 6 are oppositely arranged and are supported and connected through more than two pull rods 5 which are arranged in parallel, and two ends of each pull rod 5 respectively penetrate through holes arranged on the base 3 and the pressing plate 6 and are respectively locked and fixed through locking nuts 2; the bottom end of the shell 8 and the top end of the observation area 10 are respectively abutted against the base 3 and the pressing plate 6, and the base 3 and the pressing plate 6 are used for compressing and fixing two ends of the shell 8; a sealing rubber pad 4 is arranged between the bottom end of the shell 8 and the base 3, and the sealing rubber pad 4 is used for sealing between the wall surface of the bottom end of the shell 8 and the base 3; set up the via hole on the base 3, the via hole is all stretched out and with the periphery and the base 3 welded seal of charging connector 1 in charging connector 1 both ends, sets up the through-hole with the via hole on the base 3 department of corresponding position on the sealed cushion 4, and 1 one end of charging connector meets with outside air supply, and the other end passes the through-hole on the sealed cushion 4 and stretches into inside the casing 8.
Specifically, the method comprises the following steps: the air tightness detection tool, the shell 8, the signal transmission assembly 9 and the observation area 10 which are tightly pressed and fixed in the air tightness detection tool are immersed into a transparent vessel filled with alcohol, gas with set pressure is filled into the shell 8 through the inflating nozzle 1, the pressure change of a pressure gauge connected with the inflating nozzle 1 on the outside is observed, whether bubbles emerge from an air tightness detection area and the specific positions of the bubbles are observed at the same time, and therefore whether the air tightness of the shell of the revolution meter is good or the specific positions of the air leakage are judged.
Example 2:
on embodiment 1's basis, cylindrical recess is seted up at base 3 center, and the bottom end of casing 8 is contradicted at cylindrical recess's interior bottom surface through sealed cushion 4, and cylindrical recess is arranged in preventing that casing 8 from slipping from this detection frock.
Example 3:
on the basis of embodiment 1 or embodiment 2, the locking nut 2 for locking and connecting the pressing plate 6 and the pull rod 5 adopts the locking butterfly nut 7, so that the pressing plate 6 and the pull rod 5 can be conveniently fastened or disassembled.
Example 4:
on the basis of embodiment 1 or embodiment 2 or embodiment 3, the diameter of the through hole on the sealing rubber gasket 4 is larger than or equal to the outer diameter of the end of the inflating nozzle 1 extending into the housing 8.
In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A shell airtightness detection tool is characterized in that the bottom end of a shell (8) is provided with an opening, the top end of the shell is provided with a signal transmission assembly (9) and an observation area (10) through a fastener, and the joint of the fastener and an installation hole in the shell (8) is an airtightness detection area; its characterized in that, casing gas tightness detects frock includes: the device comprises an inflating nozzle (1), a base (3), a sealing rubber cushion (4), a pull rod (5) and a pressing plate (6);
the base (3) and the pressing plate (6) are arranged oppositely, the base and the pressing plate are supported by more than two pull rods (5) arranged in parallel, and two ends of each pull rod (5) are respectively locked and fixed with the base (3) and the pressing plate (6); two ends of the shell (8) are respectively pressed with the base (3) and the pressing plate (6); a sealing rubber gasket (4) is arranged between the bottom end of the shell (8) and the base (3) and used for sealing between the wall surface of the bottom end of the shell (8) and the base (3); a through hole is formed in the base (3), one end of the inflating nozzle (1) is connected with an external air source, and the other end of the inflating nozzle penetrates through the through hole and is communicated with the inside of the shell (8) through a through hole in a corresponding position on the sealing rubber gasket (4); the periphery of the charging connector (1) is sealed with the through hole of the base (3).
2. The shell airtightness detection tool according to claim 1, wherein a cylindrical groove is formed in the base (3), and the bottom end portion of the shell (8) abuts against the inner bottom surface of the cylindrical groove through a sealing rubber gasket (4).
3. The shell airtightness detection tool according to claim 1 or 2, wherein the locking nut (2) for locking and connecting the pressure plate (6) and the pull rod (5) adopts a locking butterfly nut (7).
4. The shell airtightness detection tool according to claim 1 or 2, wherein the aperture of the through hole in the sealing rubber gasket (4) is greater than or equal to the outer diameter of the end portion of the inflation nozzle (1) extending into the interior of the shell (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921417547.6U CN210863059U (en) | 2019-08-28 | 2019-08-28 | Shell airtightness detection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921417547.6U CN210863059U (en) | 2019-08-28 | 2019-08-28 | Shell airtightness detection tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210863059U true CN210863059U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921417547.6U Active CN210863059U (en) | 2019-08-28 | 2019-08-28 | Shell airtightness detection tool |
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| Country | Link |
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| CN (1) | CN210863059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553797A (en) * | 2019-08-28 | 2019-12-10 | 大连长丰实业总公司 | shell airtightness detection tool |
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2019
- 2019-08-28 CN CN201921417547.6U patent/CN210863059U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553797A (en) * | 2019-08-28 | 2019-12-10 | 大连长丰实业总公司 | shell airtightness detection tool |
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