CN203981331U - The Novel visual pressure stifle that a kind of air-conditioning internal machine pressure measurement is used - Google Patents
The Novel visual pressure stifle that a kind of air-conditioning internal machine pressure measurement is used Download PDFInfo
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- CN203981331U CN203981331U CN201420368748.2U CN201420368748U CN203981331U CN 203981331 U CN203981331 U CN 203981331U CN 201420368748 U CN201420368748 U CN 201420368748U CN 203981331 U CN203981331 U CN 203981331U
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- elastic telescopic
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Abstract
The utility model relates to the Novel visual pressure stifle that a kind of air-conditioning internal machine pressure measurement is used.The stifle that object is to provide should have good sealing effect, feature simple in structure and convenient for production.Technical scheme is: the Novel visual pressure stifle that a kind of air-conditioning internal machine pressure measurement is used, comprises that top end face is shaped with through hole and bottom end face and is shaped with the tubular shell of opening, is positioned at show needle in described through hole slidably, is positioned in housing inner chamber and can promotes the elastic telescopic circle of show needle; It is characterized in that: described elastic telescopic circle and show needle are connected as a single entity, the surrounding of elastic telescopic circle is shaped with the shirt rim of downward extension; The support that one end face is shaped with air hole from bottom to top inserts from the middle part of shirt rim, and the outer peripheral face of support presses the surrounding shirt rim of elastic telescopic circle so that shirt rim is fitted in the inner peripheral wall portion of housing.
Description
Technical field
The utility model relates to the kit that a kind of air-conditioning internal machine uses, specifically a kind of stifle for refrigeration piping sealing pressurize.
Background technology
Visual pressure stifle is a kind of display device can perception air conditioner refrigerating gas in pipelines pressure changing, and not only good sealing effect, pressurize are reliable, and is conducive to the quality control of product.The using method of visual pressure stifle is: in air-conditioning production run, after refrigeration piping is filled with vector gas, will use visual pressure stifle shutoff refrigeration piping port; In the time installing an air-conditioner, if the show needle of visual pressure stifle is outwardly, illustrate that refrigeration piping good seal leaks, can directly remove visual pressure stifle and be filled with cold-producing medium to refrigeration piping; Otherwise illustrate that refrigeration piping leaks, need take corresponding remedial measures.
Existing visual pressure stifle as shown in Figure 2, comprises that housing 1, show needle 2, elastic telescopic circle 3 and lining cover 4, and wherein lining covers the groove 7 and the lining lid bottom that are shaped with for locating elasticity expanding ring and disposes O-ring seal 8.Not only more complicated of above-mentioned structure, and there is more possible leak point (the A point in housing inner chamber and B point), bring inconvenience to production and use.
Utility model content
The purpose of this utility model is the deficiency overcoming in above-mentioned background technology, and a kind of Novel visual pressure stifle is provided, and this stifle should have good sealing effect, feature simple in structure and convenient for production.
The technical solution of the utility model is: the Novel visual pressure stifle that a kind of air-conditioning internal machine pressure measurement is used, comprises that top end face is shaped with through hole and bottom end face and is shaped with the tubular shell of opening, is positioned at show needle in described through hole slidably, is positioned in housing inner chamber and can promotes the elastic telescopic circle of show needle; It is characterized in that: described elastic telescopic circle and show needle are connected as a single entity, the surrounding of elastic telescopic circle is shaped with the shirt rim of downward extension; The support that one end face is shaped with air hole from bottom to top inserts from the middle part of shirt rim, and the outer peripheral face of support presses the surrounding shirt rim of elastic telescopic circle so that shirt rim is fitted in the inner peripheral wall portion of housing.
The interior resonator end surface of described case top upwards cave in and the end face of elastic telescopic circle to lower recess, making to form between housing and elastic telescopic circle can be for the cavity of elasticity expanding ring telescopic shape change.
The inner peripheral wall portion of described housing is shaped with annular table terrace, and the shirt rim of described elastic telescopic circle bottom is shaped with and can be positioned on step surface to increase the flange of sealing property.
The end surface shape of the end face of described support and elastic telescopic circle matches.
The beneficial effects of the utility model are:
Elastic telescopic circle of the present utility model is connected as a single entity with the surrounding shirt rim of extending downwards, and by the outer peripheral face of support, surrounding shirt rim is pressed on to the inner peripheral wall portion of housing inner chamber, that this leak point that just may exist reduces to is minimum (multiple leak points that original central authorities and periphery may be existed reduce to one), and then has significantly improved the sealing property of stifle; And elastic telescopic circle of the present utility model and show needle are connected as a single entity, and not only structure is comparatively simple, and production cost is minimized, and also significantly simplify and facilitated the installment work of air-conditioning internal machine, have good economic benefit.
Brief description of the drawings
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is the main TV structure schematic diagram of prior art.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model is not limited to following examples.
As shown in Figure 1, the Novel visual pressure stifle that a kind of air-conditioning internal machine pressure measurement is used, comprises tubular shell 1, show needle 2, elastic telescopic circle 3 and support 4.
The outside of this housing is the sexangle that is conducive to spanner clamping, the top end face of housing is shaped with the through hole 1-1 of vertical extension, the inner peripheral wall portion of housing is shaped with annular table terrace 1-3, the bottom of housing is shaped with opening 1-2, and the inner peripheral wall portion of opening is shaped with the screw thread 1-4 matching with refrigeration piping copper sleeve; This housing generally adopts metal or plastics manufacture.
This show needle can vertically be positioned in through hole slidably.This elastic telescopic circle is positioned in housing inner chamber and pressure that can perception housing inner chamber changes, and top end face and the show needle of elastic telescopic circle are connected as a single entity, and can pass through injection moulding integrated molding, and the surrounding of elastic telescopic circle is shaped with the shirt rim 3-1 of downward extension.
The end face center of described elastic telescopic circle is to lower recess, the interior resonator end surface of case top upwards caves in simultaneously, and making to form between housing and elastic telescopic circle can be for the cavity 5 (end surface shape of the end surface shape of support and elastic telescopic circle matches) of elasticity expanding ring telescopic shape change.In the time that housing chamber pressure increases, thereby elastic telescopic circle can protrude upwards pushing tow show needle to cavity, just can judge large (refrigeration piping leaks) of housing chamber pressure therefore outside show needle protrudes from through hole time; Otherwise, in the time of show needle retraction through hole, represent to cause refrigeration piping inner refrigerant pressure to reduce because revealing; This elastic telescopic circle generally adopts rubber manufacture.
This support from bottom to top inserts the middle part of shirt rim, the end face of support is shaped with air hole 4-1, and the Bing Shi shirt rim, surrounding shirt rim that the outer peripheral face of support presses elastic telescopic circle is tightly fitted in the inner peripheral wall portion (can strengthen the sealing effectiveness of elastic telescopic circle) of housing.
In addition, bottom, the shirt rim of elastic telescopic circle is shaped with flange 3-2 (O-ring seal similar and of the prior art); This flange is positioned on step surface, and by coordinate to strengthen sealing property with step surface; In the time that the utility model screws on refrigeration piping copper sleeve, this flange is pressed and is tightly fitted on step surface owing to being subject to the top of copper sleeve.Therefore, by the cooperation of shirt rim and flange, can make the fixing more firm of elastic telescopic circle, sealing effectiveness is better.
Claims (4)
1. the Novel visual pressure stifle that air-conditioning internal machine pressure measurement is used, comprises that top end face is shaped with through hole (1-1) and bottom end face and is shaped with the tubular shell (1) of opening (1-2), is positioned at show needle (2) in described through hole slidably, is positioned in housing inner chamber and can promotes the elastic telescopic circle (3) of show needle; It is characterized in that: described elastic telescopic circle and show needle are connected as a single entity, the surrounding of elastic telescopic circle is shaped with the shirt rim of downward extension (3-1); The support (4) that one end face is shaped with air hole (4-1) from bottom to top inserts from the middle part of shirt rim, and the outer peripheral face of support presses the surrounding shirt rim of elastic telescopic circle so that shirt rim is fitted in the inner peripheral wall portion of housing.
2. the Novel visual pressure stifle that air-conditioning internal machine pressure measurement according to claim 1 is used, it is characterized in that: the interior resonator end surface of described case top upwards cave in and the end face of elastic telescopic circle to lower recess, making to form between housing and elastic telescopic circle can be for the cavity (5) of elasticity expanding ring telescopic shape change.
3. the Novel visual pressure stifle that air-conditioning internal machine pressure measurement according to claim 2 is used, it is characterized in that: the inner peripheral wall portion of described housing is shaped with annular table terrace (1-3), and the shirt rim of described elastic telescopic circle bottom is shaped with and can be positioned on step surface to increase the flange (3-2) of sealing property.
4. the Novel visual pressure stifle that air-conditioning internal machine pressure measurement according to claim 3 is used, is characterized in that: the end surface shape of the end face of described support and elastic telescopic circle matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420368748.2U CN203981331U (en) | 2014-07-04 | 2014-07-04 | The Novel visual pressure stifle that a kind of air-conditioning internal machine pressure measurement is used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420368748.2U CN203981331U (en) | 2014-07-04 | 2014-07-04 | The Novel visual pressure stifle that a kind of air-conditioning internal machine pressure measurement is used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203981331U true CN203981331U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420368748.2U Expired - Fee Related CN203981331U (en) | 2014-07-04 | 2014-07-04 | The Novel visual pressure stifle that a kind of air-conditioning internal machine pressure measurement is used |
Country Status (1)
| Country | Link |
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| CN (1) | CN203981331U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090672A (en) * | 2015-07-22 | 2015-11-25 | 格力电器（芜湖）有限公司 | Pressure early warning sealing cap and air conditioner |
| CN105241610A (en) * | 2015-09-30 | 2016-01-13 | 青岛海尔空调器有限总公司 | Leak detection method of air conditioner indoor unit |
| CN105257946A (en) * | 2015-09-30 | 2016-01-20 | 青岛海尔空调器有限总公司 | End socket with leakage detecting function, air conditioner indoor unit and leakage detecting method |
| CN105864559A (en) * | 2016-06-20 | 2016-08-17 | 珠海格力电器股份有限公司 | Pressure early warning sealing cap and air conditioner |
| CN108167447A (en) * | 2017-12-25 | 2018-06-15 | 广东美的制冷设备有限公司 | Detect valve, nitrogen charging detection components and air-conditioning equipment |
-
2014
- 2014-07-04 CN CN201420368748.2U patent/CN203981331U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090672A (en) * | 2015-07-22 | 2015-11-25 | 格力电器（芜湖）有限公司 | Pressure early warning sealing cap and air conditioner |
| CN105241610A (en) * | 2015-09-30 | 2016-01-13 | 青岛海尔空调器有限总公司 | Leak detection method of air conditioner indoor unit |
| CN105257946A (en) * | 2015-09-30 | 2016-01-20 | 青岛海尔空调器有限总公司 | End socket with leakage detecting function, air conditioner indoor unit and leakage detecting method |
| CN105864559A (en) * | 2016-06-20 | 2016-08-17 | 珠海格力电器股份有限公司 | Pressure early warning sealing cap and air conditioner |
| CN108167447A (en) * | 2017-12-25 | 2018-06-15 | 广东美的制冷设备有限公司 | Detect valve, nitrogen charging detection components and air-conditioning equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20200704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |