CN106481927B - Seal cap device - Google Patents
Seal cap device Download PDFInfo
- Publication number
- CN106481927B CN106481927B CN201611169311.6A CN201611169311A CN106481927B CN 106481927 B CN106481927 B CN 106481927B CN 201611169311 A CN201611169311 A CN 201611169311A CN 106481927 B CN106481927 B CN 106481927B
- Authority
- CN
- China
- Prior art keywords
- hole
- sealing
- nut shell
- display part
- seal cap
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/115—Caps
- F16L55/1152—Caps fixed by screwing or by means of a screw-threaded ring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2201/00—Special arrangements for pipe couplings
- F16L2201/60—Identification or marking
Abstract
It include: nut shell the present invention provides a kind of seal cap device, the through-hole of the specific hollow accommodating chamber of the nut shell and the perforation nut shell；It shows needle, is slidably disposed in the through-hole, the display needle can stretch out or retract the through-hole；And sealing display part, protrusion is set on the nut shell, and the sealing display part is provide with the through-hole, to seal the through-hole, when the display needle stretches out the through-hole, the end of the display needle is located in the sealing display part, and the outer surface for sealing display part is made to generate visual variation.Guarantee the through hole sealing on nut shell by sealing display part, simultaneously, sealing display part can also show the position of display needle, the end leakage of the current sealing cap spool of effective solution and the problem of influence air conditioner air tight test, prevent nut shell to leak in through hole, it avoids the problem that frequently alarming when air conditioner general assembly, process is reprocessed in reduction.
Description
Technical field
The present invention relates to detection device technical fields, more particularly to a kind of seal cap device.
Background technique
Currently, refrigerant is injected by the connecting tube of air conditioner, and passes through sealing cap valve when air conditioner carries out helium inspection after general assembly
Core blocks the end of connecting tube, reveals to avoid helium through the end of connecting tube, to guarantee that each components to air conditioner carry out
Leak detection.But after air conditioner perfusion refrigerant, as time went on, the end of sealing cap spool can have refrigerant infiltration, shadow
Ring the inspection of air conditioner general assembly air-tightness.
Summary of the invention
Based on this, it is necessary to for current sealing cap spool end leakage and influence asking for air conditioner air tight test
Topic provides through hole coolant leakage, the sealing cap dress convenient for air conditioner general assembly air tight test that one kind can prevent nut shell
It sets.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of seal cap device, comprising:
Nut shell, the through-hole of the specific hollow accommodating chamber of the nut shell and the perforation nut shell are described
Through-hole is connected to the accommodating chamber；
It shows needle, is slidably disposed in the through-hole, the display needle can stretch out or retract the through-hole；And
Display part is sealed, protrusion is set on the nut shell, and the sealing display part is provide with the through-hole, with close
The through-hole is sealed, when the display needle stretches out the through-hole, the end of the display needle is located in the sealing display part, and makes
The outer surface for sealing display part generates visual variation.
The sealing display part has hollow space, the hollow space and the through-hole in one of the embodiments,
Connection, when the display needle stretches out the through-hole, the end of the display needle is located in the hollow space.
The sealing display part is structure as a whole with the nut shell in one of the embodiments,.
The sealing display part is made of transparent plastics in one of the embodiments,.
The sealing display part is made of white plastic in one of the embodiments,.
The wall thickness of the sealing display part is less than the wall thickness of the nut shell in one of the embodiments,.
The protrusion of multiple strips, strip are set on the outer peripheral surface of the nut shell in one of the embodiments,
It is described protrusion along the nut shell axis direction extend；
The protrusion can carry out detent fit with locking tool.
The seal cap device further includes clamping cap in one of the embodiments, and the clamping cap is set to accommodating chamber
In；
Air inlet is provided on the clamping cap, the air inlet is connected to the through-hole.
The inner wall of the accommodating chamber has step in one of the embodiments, and the clamping cap is set to the appearance
It receives after chamber, the clamping cap is abutted with the step.
The seal cap device further includes extensible member in one of the embodiments, one end of the extensible member and the pressure
Tight lid connection, the other end of the extensible member are connect with the display needle；
The extensible member and the clamping cap, which enclose, is set as cavity, and the air inlet is connected with the cavity；
The extensible member can stretching motion so that the display needle slide in the through hole stretching or retract.
Internal screw thread is set on the inner wall of the one end of the accommodating chamber far from the through-hole in one of the embodiments,
The internal screw thread with the pipe fitting of connecting tube for connecting.
Above-mentioned technical proposal has the following beneficial effects:
Seal cap device of the invention, structure design advantages of simple, sealing display part can to the through-hole on nut shell into
Row sealing, after refrigerant is perfused in such air conditioner, seal cap device is installed on the pipe fitting of the connecting tube of air conditioner, and coolant injection exists
After accommodating chamber, refrigerant will not be leaked by through hole, even if placing for a long time, due to sealing the sealing function of display part, energy
Refrigerant is avoided to leak by nut shell, enough convenient for the air tight test after air conditioner general assembly.Meanwhile coolant injection is in accommodating chamber
Behind room, refrigerant can make the display needle movement in through-hole, when display needle stretches out through-hole, show that the end of needle is located at sealing display part
In, after the visual variation of outer surface generation for sealing display part, user can observe the position of display needle by sealing display part
It sets, and then judges the pressure in nut shell, process is reprocessed in reduction, is lowered production testing and is controlled difficulty.Sealing cap dress of the invention
The through hole sealing guaranteed on nut shell by sealing display part is set, meanwhile, sealing display part can also show display needle
Position, the end leakage of the current sealing cap spool of effective solution and the problem of influence air conditioner air tight test, prevent nut
Shell is leaked in through hole, avoids the problem that frequently alarming when air conditioner general assembly, and process is reprocessed in reduction, improves production efficiency.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the seal cap device of one embodiment of the invention；
Fig. 2 is the top view of seal cap device shown in FIG. 1；
Wherein:
100- seal cap device；
110- nut shell；
111- accommodating chamber；
112- through-hole；
113- protrusion；
120- shows needle；
130- seals display part；
131- hollow space；
140- clamping cap；
150- extensible member；
160- sealing ring.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, by the following examples, it and combines attached
Figure, is further elaborated seal cap device of the invention.It should be appreciated that specific embodiment described herein only to
It explains the present invention, is not intended to limit the present invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be with
It is directly to another element or may be simultaneously present centering elements.Term as used herein " vertically ", " level
", "upper", "lower", "left", "right" and similar statement for illustrative purposes only, be not offered as being uniquely to implement
Mode.
Referring to Fig. 1 and Fig. 2, the present invention provides a kind of seal cap device 100, which is installed on air conditioner
On the pipe fitting of connecting tube, the reliable of air conditioner is improved in order to carry out air tight test to air conditioner with sealed joint pipe
Property.Specifically, seal cap device 100 is mounted in the connecting tube of the indoor unit of air conditioner, and after coolant injection to indoor unit, envelope
Cap device 100 is installed in connecting tube, to block connecting tube, avoid refrigerant by connecting tube leak, in order to air conditioner into
Row air tight test.Moreover, air conditioner is during transportation, seal cap device 100 is located in connecting tube, until air conditioner
Indoor unit installation when, remove the seal cap device 100 in connecting tube, connecting tube docked with outdoor unit of the air conditioner.The present invention
Seal cap device 100 can guarantee sealing performance, prevent refrigerant and leaked by seal cap device 100, avoid causing because spool leaks
Process is reprocessed in the problem of air conditioner general assembly is frequently alarmed, reduction, reduces the difficulty of production testing control.
In one embodiment of this invention, seal cap device 100 includes nut shell 110, display needle 120 and sealing display part
130.Nut shell 110 is for connecting with connecting tube, and display needle 120 is sealed for detecting the pressure in connecting tube
Display part 130 is for ensuring that the sealing performance of nut shell 110.After connecting tube is installed on nut shell 110, nut shell
110 guarantee the sealing performance of connecting tube, and the nut shell 110 of the refrigerant of air conditioner by connecting tube and thereon is avoided to leak.
Specifically, the through-hole 112 of the specific hollow accommodating chamber 111 of nut shell 110 and perforation nut shell 110, leads to
Hole 112 is connected to accommodating chamber 111.Preferably, in the present embodiment, through-hole 112 is the axial direction perforation along nut shell 110
Nut shell 110.Display needle 120 is slidably disposed in through-hole 112, and display needle 120 can stretch out or retract through-hole
112.The sealing protrusion of display part 130 is set on nut shell 110, and is sealed display part 130 and be provide with through-hole 112, logical to seal
Hole 112, when display needle 120 stretches out through-hole 112, the end of display needle 120 is located in sealing display part 130, and shows sealing
The outer surface of part 130 generates visual variation.After seal cap device 100 is connect with connecting tube, connecting tube is installed to nut shell 110
Accommodating chamber 111 in, the refrigerant in connecting tube can be filled in accommodating chamber 111, due to sealing display part 130 be to be provide with
On the through-hole 112 of nut shell 110, sealing display part 130 can guarantee the sealing performance of nut shell 110, Jin Erbao
The sealing performance of seal cap device 100 is demonstrate,proved, such seal cap device 100 is installed in connecting tube, can be prevented refrigerant and be filled by sealing cap
100 leakages are set, and then carry out air tight test in general assembly convenient for air conditioner.
It shows that needle 120 is the pressure in the chamber resettling for showing nut shell 110, shows needle 120 in refrigerant
It can be slided in through-hole 112 under pressure effect.When the pressure in chamber resettling is larger, display needle 120 can be along through-hole 112
It slides and stretches out through-hole 112；When the pressure in chamber resettling is smaller, display needle 120 moves along through-hole 112 and retracts through-hole
112.Also, after showing that needle 120 stretches out through-hole 112, the end of display needle 120 is located in sealing display part 130, aobvious due to sealing
Show that the outer surface of part 130 generates visual variation, user can sentence by the position of the sealing observation display needle 120 of display part 130
Pressure in disconnected nut shell 110, and then learn the pressure of refrigerant in connecting tube.Moreover, in the chamber resettling of nut shell 110
Pressure it is different, the length that display needle 120 stretches out also is different, and then user passes through the sealing observation display needle of display part 130
120 position is it can be learnt that pressure in chamber resettling.
Preferably, in the present embodiment, the cross sectional shape of sealing display part 130 is in n font.Sealing display part 130 is also
Hollow structure, sealing display part 130 be located on nut shell 110, seal the hollow space 131 and nut of display part 130
The through-hole 112 of shell 110 is corresponding, after display needle 120 stretches out through-hole 112, shows that the end of needle 120 can be located at sealing display
In the hollow space 131 of part 130.Moreover, sealing display part 130 is located on nut shell 110, it can guarantee nut shell
110 sealing performance at through-hole 112 avoids refrigerant from passing through at the through-hole 112 of nut shell 110 and leaks.Certainly, sealing display
Part 130 can be realized the display structure of the sealing of through-hole 112 also for other.
Further, sealing display part 130 is structure as a whole with nut shell 110.That is sealing display part 130 and nut shell
Body 110 is processed by injection molding, can save manufacturing procedure in this way, improves assembly efficiency.Still further, sealing is aobvious
Show that part 130 is made of transparent plastics.The position of display needle 120 can be observed convenient for user in this way, at this point, sealing display part
130 can be processed with nut shell 110 using the molding processing method of double-material injection-molding.Certainly, in other realities of the invention
It applies in mode, sealing display part 130 is made of white plastic or light plastics, and shows that needle 120 is made of dark colored plastic, dark
Such as red, blue, black.In this way, display needle 120, into sealing display part 130, it is aobvious that display needle 120 can deepen sealing
Show the color at part 130, user can easily observe the movement of display needle 120.Preferably, nut shell 110 and sealing
Display part 130 is by transparent or white polyformaldehyde material injection molding.Further, the wall thickness for sealing display part 130 is small
In the wall thickness of nut shell 110.That is, reduction processing is carried out relative to nut shell 110 on sealing display part 130,
The motion conditions of display needle 120 can be further observed convenient for user in this way.
As an embodiment, the rounded setting of the outer peripheral surface of nut shell 110 can be convenient for nut shell in this way
110 match with locking tool.Moreover, the protrusion 113 of multiple strips, strip are arranged on the outer peripheral surface of nut shell 110
Protrusion 113 along nut shell 110 axis direction extend.Protrusion 113 can carry out detent fit with locking tool.Sealing cap dress
When setting 100 locking, locking tool covers on nut shell 110, makes groove and the mutually clamping of protrusion 113 on locking tool, turns
Dynamic locking tool lock onto nut shell 110 in connecting tube, guarantees that nut shell 110 is connect reliably with connecting tube, avoids spiral shell
Parent shell 110 is slipped from connecting tube under pressure.
As an embodiment, seal cap device 100 further includes clamping cap 140, and clamping cap 140 is set to accommodating chamber
In 111.Air inlet is provided on clamping cap 140, air inlet is connected to through-hole 112.In addition, seal cap device 100 further includes stretching
One end of part 150, extensible member 150 is connect with clamping cap 140, and the other end of extensible member 150 is connect with display needle 120.Extensible member
150 enclose with clamping cap 140 and are set as cavity, and air inlet is connected with cavity.Extensible member 150 can stretching motion so that display needle
120 sliding stretching or retractions in through-hole 112.Clamping cap 140 is for extensible member 150 is pressed on nut shell 110
In accommodating chamber 111, to guarantee that the position of extensible member 150 is fixed.In the present embodiment, one end of extensible member 150 is in bow word
Shape setting, the both ends for bending font are respectively arranged on clamping cap 140, and the other end of extensible member 150 is connect with display needle 120.It stretches
Contracting part 150 bends one end of font and clamping cap 140 encloses and is set as cavity.After seal cap device 100 is connect with connecting tube, coolant injection
Enter in cavity into accommodating chamber 111, and through air inlet, refrigerant, which can jack up extensible member 150, stretches extensible member 150
Out, and then extensible member 150 drives display needle 120 to slide in through-hole 112, so that display needle 120 can stretch out through-hole 112.When
When refrigerant pressure in connecting tube reduces, the pressure that extensible member 150 is subject to reduces, and extensible member 150 can be retracted and then be driven aobvious
Show that needle 120 retracts in through-hole 112.Preferably, extensible member 150 is made of rubber elastomeric material, to guarantee stretching for extensible member 150
Contracting performance,
Further, clamping cap 140 and accommodating chamber 111 are interference fit.It can guarantee the position of clamping cap 140 in this way
It is fixed, it avoids the position play of clamping cap 140 and influences the movement that extensible member 150 drives display needle 120, shown in advance convenient for pressure
It is alert.Still further, the inner wall of accommodating chamber 111 has step, after clamping cap 140 is set to accommodating chamber 111, clamping cap
140 abut with step.It can be convenient for the assembly of clamping cap 140 in this way, guarantee the assembly of clamping cap 140 in place, to guarantee extensible member
150 movements are reliable.
As an embodiment, internal screw thread is set on the inner wall of the one end of accommodating chamber 111 far from through-hole 112, it is interior
Screw thread with the pipe fitting of connecting tube for connecting.It can be connect in this way convenient for nut shell 110 with connecting tube.Nut shell 110
After connecting with connecting tube, the setting that nut shell 110 can fasten guarantees the sealing of connecting tube, avoids refrigerant in connecting tube
Leakage.And for the connecting tube of different tube diameters, the nut shell 110 of different inner diameters size can be selected matched.
Further, seal cap device 100 further includes sealing ring 160, and sealing ring 160 is set in accommodating chamber 111.Pipe connects
Head is installed in accommodating chamber 111, and pipe fitting is abutted with sealing ring 160.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (11)
1. a kind of seal cap device characterized by comprising
Nut shell (110), the specific hollow accommodating chamber (111) of the nut shell (110) and the perforation nut shell
(110) through-hole (112), the through-hole (112) are connected to the accommodating chamber (111)；
It shows needle (120), is slidably disposed in the through-hole (112), the display needle (120) can stretch out or retract
The through-hole (112)；And
It seals display part (130), protrusion is set on the nut shell (110), and the sealing display part (130) is provide with institute
Through-hole (112) are stated, to seal the through-hole (112), when the display needle (120) stretches out through-hole (112), the display needle
(120) end is located in the sealing display part (130), and the outer surface for sealing display part (130) is made to generate visual become
Change.
2. seal cap device according to claim 1, which is characterized in that the sealing display part (130) has hollow space
(131), the hollow space (131) is connected to the through-hole (112), and the display needle (120) stretches out the through-hole (112)
When, the end of display needle (120) is located in the hollow space (131).
3. seal cap device according to claim 2, which is characterized in that the sealing display part (130) and the nut shell
Body (110) is structure as a whole.
4. seal cap device according to any one of claims 1 to 3, which is characterized in that the sealing display part (130) is by saturating
Bright plastics are made.
5. seal cap device according to any one of claims 1 to 3, which is characterized in that the sealing display part (130) is by white
Color plastics are made.
6. seal cap device according to any one of claims 1 to 3, which is characterized in that the wall of sealing display part (130)
Thickness is less than the wall thickness of the nut shell (110).
7. seal cap device according to claim 1, which is characterized in that be arranged on the outer peripheral surface of the nut shell (110)
Raised (113) of the protrusion (113) of multiple strips, strip extend along the axis direction of the nut shell (110)；
The protrusion (113) can carry out detent fit with locking tool.
8. seal cap device according to claim 1, which is characterized in that the seal cap device (100) further includes clamping cap
(140), the clamping cap (140) is set in accommodating chamber (111)；
It is provided with air inlet on the clamping cap (140), the air inlet is connected to the through-hole (112).
9. seal cap device according to claim 8, which is characterized in that the inner wall of the accommodating chamber (111) has step,
After the clamping cap (140) is set to the accommodating chamber (111), the clamping cap (140) abuts with the step.
10. seal cap device according to claim 8, which is characterized in that the seal cap device (100) further includes extensible member
(150), one end of the extensible member (150) is connect with the clamping cap (140), the other end of the extensible member (150) and institute
State display needle (120) connection；
The extensible member (150) and the clamping cap (140), which are enclosed, is set as cavity, and the air inlet is connected with the cavity；
The extensible member (150) can stretching motion so that the display needle (120) sliding in the through-hole (112) is stretched out
Or it retracts.
11. seal cap device according to claim 5, which is characterized in that the accommodating chamber (111) is far from the through-hole
(112) internal screw thread is set on the inner wall of one end, and the internal screw thread with the pipe fitting of connecting tube for connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169311.6A CN106481927B (en) | 2016-12-16 | 2016-12-16 | Seal cap device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169311.6A CN106481927B (en) | 2016-12-16 | 2016-12-16 | Seal cap device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106481927A CN106481927A (en) | 2017-03-08 |
| CN106481927B true CN106481927B (en) | 2019-03-29 |
Family
ID=58284856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611169311.6A Active CN106481927B (en) | 2016-12-16 | 2016-12-16 | Seal cap device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106481927B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| GB2575991B (en) * | 2018-07-31 | 2022-07-20 | In2Engineering Ltd | Pressure indicator cap |
| AU2022319177A1 (en) * | 2021-07-29 | 2024-01-25 | Bos Fabrication Engineering Services Pty Ltd | Test cap |
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| GB191504135A (en) * | 1915-03-16 | 1916-03-09 | Lancelot Ussher | Improvements in or relating to Connections for Pipes, Rods, Tubes and the like. |
| CN2476699Y (en) * | 2001-04-06 | 2002-02-13 | 广东科龙电器股份有限公司 | Sealing device for two-way, three-way valve and pipe connector |
| CN2564835Y (en) * | 2002-09-09 | 2003-08-06 | 大庆油田安装工程有限责任公司 | Temporary plugging device for large diameter pipeline |
| CN2584657Y (en) * | 2002-11-12 | 2003-11-05 | 张志明 | Guardrail with luminous device |
| CN2695760Y (en) * | 2004-04-09 | 2005-04-27 | 井朝纲 | Cap for valve with sealing lining of tyre |
| 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 |
| CN205262550U (en) * | 2015-12-18 | 2016-05-25 | 中国科学院合肥物质科学研究院 | Simple and easy buoy level meter of closed |
| CN206398257U (en) * | 2016-12-16 | 2017-08-11 | 珠海格力电器股份有限公司 | Seal cap device |
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2016
- 2016-12-16 CN CN201611169311.6A patent/CN106481927B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191504135A (en) * | 1915-03-16 | 1916-03-09 | Lancelot Ussher | Improvements in or relating to Connections for Pipes, Rods, Tubes and the like. |
| CN2476699Y (en) * | 2001-04-06 | 2002-02-13 | 广东科龙电器股份有限公司 | Sealing device for two-way, three-way valve and pipe connector |
| CN2564835Y (en) * | 2002-09-09 | 2003-08-06 | 大庆油田安装工程有限责任公司 | Temporary plugging device for large diameter pipeline |
| CN2584657Y (en) * | 2002-11-12 | 2003-11-05 | 张志明 | Guardrail with luminous device |
| CN2695760Y (en) * | 2004-04-09 | 2005-04-27 | 井朝纲 | Cap for valve with sealing lining of tyre |
| 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 |
| CN205262550U (en) * | 2015-12-18 | 2016-05-25 | 中国科学院合肥物质科学研究院 | Simple and easy buoy level meter of closed |
| CN206398257U (en) * | 2016-12-16 | 2017-08-11 | 珠海格力电器股份有限公司 | Seal cap device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106481927A (en) | 2017-03-08 |
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