CN206420618U - A kind of short tube sealing device detected for air cleaner - Google Patents
A kind of short tube sealing device detected for air cleaner Download PDFInfo
- Publication number
- CN206420618U CN206420618U CN201621207256.0U CN201621207256U CN206420618U CN 206420618 U CN206420618 U CN 206420618U CN 201621207256 U CN201621207256 U CN 201621207256U CN 206420618 U CN206420618 U CN 206420618U
- Authority
- CN
- China
- Prior art keywords
- short tube
- screw thread
- sealing device
- plug
- air cleaner
- 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.)
- Expired - Fee Related
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- Examining Or Testing Airtightness (AREA)
- Sealing Material Composition (AREA)
Abstract
The utility model is related to a kind of short tube sealing device detected for air cleaner, the sealing device is provided with externally threaded plug, the external screw thread of the plug matches with the short tube internal thread processed through screw tap, and the external screw thread of plug scribbles screw thread glue-line, will complete to seal in plug precession short tube.Compared with prior art, the utility model good sealing effect, is realized using screw thread and fluid sealant and sealed, high temperature resistant, high pressure resistant, and use occasion is unrestricted；Simple in construction, easy to use, wide using scope, without special internal expanding head or outsourcing elastomer, cost is low, reusable, reduces testing cost.
Description
Technical field
The utility model is related to a kind of sealing device of air cleaner performance test, is used for air more particularly, to one kind
The short tube sealing device of cleaner detection.
Background technology
The air cleaner used on automobile is measured to performances such as its leakage rate or burst pressures, it is necessary to ensure air inlet
Short tube on manifold is fully sealed, to make the accurate of measurement.Because the leakage in short tube or hole often causes in process of the test
Leakage rate or burst pressure can not accurately be measured, or successfully complete experiment.Therefore leakage or explosion are being started
Before experiment, it is necessary to assure it is fully sealed.At present, there are two kinds to the encapsulating method that the short tube of product is used：One kind is internal expanding method,
Elastomer is used, such as rubber stopper clogs short tube, then make elastomer spreading in short tube close so as to realize by cam mechanism
Envelope；Another is epiboly, i.e., the outside of short tube is enclosed on using rubber lid, recycles clip to tighten realization sealing.But to this
Elastomer used in two methods requires higher it is necessary to have good elasticity, and be only suitable for that temperature is relatively low, pressure not
High occasion, big elastic multi-body can not bear high temperature, high pressure, when testing burst pressure, and the reliability of test cannot be protected
Barrier, and either internal expanding method, or epiboly, sealing effectiveness is simultaneously bad, and troublesome poeration, complex steps.
Utility model content
The purpose of this utility model is exactly that a kind of good airproof performance is provided to solve the above problems, easy to operate is used for
The short tube sealing device of air cleaner detection.
The purpose of this utility model is achieved through the following technical solutions：
A kind of short tube sealing device detected for air cleaner, the sealing device is, provided with externally threaded plug, to be somebody's turn to do
The external screw thread of plug matches with the short tube internal thread processed through screw tap, and the external screw thread of plug scribbles screw thread glue-line.
Seal washer is also provided between described plug and short tube.
Described plug is bolt, including shank of bolt and bolt head, shank of bolt are provided with external screw thread.
The processing length of the internal thread of the short tube is more than 10mm, and the wall thickness of short tube is 1-2mm.
The burst pressure that described plug with short tube bear after thread seal is not less than 20bar.
The screw thread glue that described screw thread glue-line is used for a watt gram E43, can bearing temperature scope be -40~130 DEG C, or adopt
With Wu Erte Silicone special 250, can bearing temperature scope be -50 DEG C~250 DEG C.
The thickness of described screw thread glue-line is to cover externally threaded thread groove.
The encapsulating method of described short tube sealing device, specifically includes following steps：
(1) internal diameter of the short tube on vernier caliper measurement air cleaner casing is utilized；
(2) using 0.5mm-1.0mm bigger than internal diameter screw tap, in short tube inner surface tapping, machining internal thread；
(3) what selection and short tube internal thread matched carries externally threaded plug；
(4) external screw thread of plug is applied into screw thread glue, by plug precession short tube, cooperation is tightened；
(5) after screw thread adhesive curing, leakage or burst pressure test are started.
Compared with prior art, the utility model has advantages below：
1st, good sealing effect：The utility model realizes sealing using screw thread and fluid sealant, high temperature resistant, high pressure resistant, uses field
Close unrestricted；The utility model is more than 10mm in threaded connection, you can bear 20bar burst pressure, and the pressure is for hair
The operating mode of motivation is fully sufficient, greatly improves success of the test probability, it is to avoid because short tube sealing loosely causes test failure, it is ensured that
Loosely caused leakage or failure will not be blocked in test process because of fixture；
2nd, it is simple in construction, easy to use：The present apparatus realized by plug (such as screw rod) and sealed, without special internal expanding head or
Outsourcing elastomer, cost is low, reusable, substantially reduces testing cost；
3rd, it is wide using scope：Short tube can select screw tap size according to different inner diameters, so that corresponding plug is selected, size model
Enclose relatively wide, 1mm-25.4mm short tube sealing can be covered.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：1- internal threads；2- external screw threads；3- screw thread glue-lines；4- plugs；5- short tubes；6- shells.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of short tube sealing device detected for air cleaner, as shown in figure 1, by the shell 6 of air cleaner
Short tube 5 seal, using the plug 4 provided with external screw thread 2, the present embodiment uses bolt, and the external screw thread 2 of bolt through screw tap with processing
The internal thread 1 of short tube 5 match, external screw thread 2 scribbles screw thread glue-line, will complete to seal in bolt precession short tube 5, in order to increase
Sealing, seal washer is also provided between the bolt head and short tube of bolt.The length for the internal thread 1 that short tube 5 is set is more than
10mm, the wall thickness of short tube is 1-2mm, and the length of the present embodiment internal thread 1 is 15mm, and bolt 4 is carried out after thread seal with short tube 5
The burst pressure born more than 20bar, the screw thread glue that screw thread glue-line is used for a watt gram E43, can bearing temperature scope be -40~
130 DEG C, screw thread glue is coated on the external screw thread of bolt, the excessively externally threaded thread groove of thick lid of screw thread glue-line.
The encapsulating method of the short tube sealing device, specifically includes following steps：
(1) internal diameter of the short tube on vernier caliper measurement air cleaner casing is utilized；
(2) using 0.5mm-1.0mm bigger than internal diameter screw tap, in short tube inner surface tapping, machining internal thread；
(3) bolt that selection matches with short tube internal thread；
(4) external screw thread of bolt is applied into screw thread glue, by bolt precession short tube, cooperation is tightened；
(5) after screw thread adhesive curing, leakage or burst pressure test are started.
Claims (6)
1. a kind of short tube sealing device detected for air cleaner, it is characterised in that the sealing device is provided with external screw thread
Plug, the external screw thread of the plug matches with the short tube internal thread processed through screw tap, and the external screw thread of plug scribbles screw thread glue-line.
2. a kind of short tube sealing device detected for air cleaner according to claim 1, it is characterised in that described
Plug and short tube between be also provided with seal washer.
3. a kind of short tube sealing device detected for air cleaner according to claim 1, it is characterised in that described
Plug be bolt, including shank of bolt and bolt head, shank of bolt are provided with external screw thread.
4. a kind of short tube sealing device detected for air cleaner according to claim 1, it is characterised in that described
The processing length of the internal thread of short tube is more than 10mm, and the wall thickness of short tube is 1-2mm.
5. a kind of short tube sealing device detected for air cleaner according to claim 1, it is characterised in that described
The screw thread glue that uses of screw thread glue-line for watt gram E43 or Wu Erte Silicone special 250.
6. a kind of short tube sealing device detected for air cleaner according to claim 5, it is characterised in that described
Screw thread glue-line thickness to cover externally threaded thread groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621207256.0U CN206420618U (en) | 2016-11-09 | 2016-11-09 | A kind of short tube sealing device detected for air cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621207256.0U CN206420618U (en) | 2016-11-09 | 2016-11-09 | A kind of short tube sealing device detected for air cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206420618U true CN206420618U (en) | 2017-08-18 |
Family
ID=59578037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621207256.0U Expired - Fee Related CN206420618U (en) | 2016-11-09 | 2016-11-09 | A kind of short tube sealing device detected for air cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206420618U (en) |
-
2016
- 2016-11-09 CN CN201621207256.0U patent/CN206420618U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170818 Termination date: 20211109 |