CN204176190U - Pipe orifice sealing air inlet device - Google Patents
Pipe orifice sealing air inlet device Download PDFInfo
- Publication number
- CN204176190U CN204176190U CN201420579573.XU CN201420579573U CN204176190U CN 204176190 U CN204176190 U CN 204176190U CN 201420579573 U CN201420579573 U CN 201420579573U CN 204176190 U CN204176190 U CN 204176190U
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- China
- Prior art keywords
- air inlet
- sealing
- pipe
- detection
- plug
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- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 120
- 238000001514 detection method Methods 0.000 claims abstract description 53
- 238000003780 insertion Methods 0.000 claims abstract description 22
- 230000037431 insertion Effects 0.000 claims abstract description 21
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N Acetylene Chemical compound C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a mouth of pipe seals air inlet unit, include: the end part of the air inlet plug is provided with an insertion section which can be inserted into the detection pipe; the sealing ring is sleeved on the outer wall of the insertion section and is used for being in sealing fit with the inner wall of the detection tube; the port sealing element is fixedly arranged on the air inlet plug, and the port sealing element is pressed and sealed with the pipe orifice of the detection pipe after the insertion section extends into the detection pipe; and the pressing piece is used for pressing the port sealing piece on the nozzle of the detection pipe. This mouth of pipe seals air inlet unit inlet plug and has formed double seal structure between the sense tube, compares with present mode, the utility model discloses in the mouth of pipe department of sense tube has increased the second and has said sealedly, even there is gas leakage between the inner wall of sealing washer and sense tube, the second is said so sealed also can effectively prevent that gas from leaking to the outside, therefore this has just effectively improved the sealing performance between inlet plug and the sense tube, and then has guaranteed the reliability of gas tightness testing result.
Description
Technical Field
The utility model relates to an air tightness detects technical field, and more specifically says, relates to an used mouth of pipe seals air inlet unit in the gas tightness testing process.
Background
At present, in various industries, the air tightness of a product needs to be detected to ensure that the product can be free from air leakage and water leakage, in order to detect the air tightness, detection pipes for filling air are reserved in the product, an air inlet plug is generally inserted into the detection pipes or sleeved outside the detection pipes when the air tightness is detected, then the interior of the product is inflated, and after the inflated product is put into water and stands still for a period of time, whether the air tightness of the product is qualified or not is judged by observing whether the product bubbles in the water or not.
In order to ensure that the gas filled into the product keeps proper pressure, the air inlet plug is not pulled out from the detection pipe under the common condition, the air inlet plug can stand still in water along with the product, however, because only one sealing ring is arranged between the current air inlet plug and the detection pipe, the air tightness between the air inlet plug and the detection pipe cannot be ensured, after the product and the air inlet plug are combined and placed in the water, the gas leaked between the detection pipe and the air inlet plug can also generate bubbles in the water, and the phenomenon that whether the product leaks can not be judged by a worker.
Therefore, how to ensure the sealing performance between the inlet plug and the detection tube to ensure the reliability of the detection result is a technical problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a sealed air inlet unit of mouth of pipe to can guarantee the leakproofness between air inlet plug and the test tube, thereby improve the reliability of testing result.
In order to achieve the above object, the utility model provides a following technical scheme:
a port seal air inlet device comprising:
the end part of the air inlet plug is provided with an insertion section which can be inserted into the detection pipe;
the sealing ring is sleeved on the outer wall of the insertion section and is used for being in sealing fit with the inner wall of the detection tube;
the port sealing element is fixedly arranged on the air inlet plug and is pressed and sealed with the pipe orifice of the detection pipe after the insertion section extends into the detection pipe;
and the pressing piece is used for pressing the port sealing piece on the nozzle of the detection pipe.
Preferably, in the above pipe orifice sealing air intake device, the compressing element is a piston cylinder, a cylinder body of the piston cylinder is fixedly connected with a compressing element fixing plate, a piston end of the piston cylinder is fixedly connected with a movable plate, and the air intake plug is fixedly connected to the movable plate.
Preferably, in the above nozzle seal air inlet device, the pressing member includes:
a lead screw driven by a motor;
and the air inlet plug is fixedly connected to the sliding block.
Preferably, in the pipe orifice sealing air inlet device, at least two sealing rings are sleeved on the outer wall of the insertion section, and the sealing rings are arranged at intervals.
Preferably, in the above-mentioned sealed air inlet unit of pipe orifice, a sealing ring accommodating groove is opened on the outer wall of the insertion section, and the sealing ring is embedded in the sealing ring accommodating groove.
Preferably, in the above pipe orifice sealing air intake device, a sealing ring groove into which an end of the detection pipe can be inserted is further formed on a side of the port sealing member opposite to the detection pipe.
Preferably, in the above pipe orifice sealing air inlet device, a guide inclined plane is further provided on an inner side surface of the sealing ring groove, so that the end of the detection pipe can be conveniently embedded into the sealing ring groove.
Preferably, in the above pipe orifice sealing air inlet device, the end of the insertion section is further provided with a tapered guide slope for facilitating self insertion into the detection pipe.
Preferably, in the above nozzle sealing air inlet device, the air inlet plug further has a positioning shoulder thereon, and the port sealing member is fixedly disposed on the positioning shoulder.
Preferably, in the above pipe orifice sealing air inlet device, the sealing ring and the port sealing member are both made of rubber.
According to the above technical scheme, the utility model discloses an among the sealed air inlet unit of mouth of pipe, including the air inlet plug, the sealing washer, the port sealing member and compress tightly the piece, wherein the tip of air inlet plug is provided with and can inserts the inside grafting section of measuring tube, and the sealing washer cover is established on the outer wall of grafting section, and be used for with the sealed cooperation of measuring tube inner wall, the port sealing member is fixed to be set up on the air inlet plug, and the port sealing member stretches into the measuring tube in the grafting section after with the mouth of pipe pressure seal of measuring tube, compress tightly the piece and be used for compressing tightly the port sealing member on the mouth of pipe of measuring tube.
In this mouth of pipe seals air inlet unit, formed double seal structure between air inlet plug and the test tube, wherein the inner wall of sealing washer and test tube has constituted the first way that prevents gas leakage and has sealed, it is sealed to compress tightly between the mouth of pipe of test tube and the port sealing member has formed the second way that prevents gas leakage, compares in the single sealing mode between present air inlet plug and test tube, the utility model discloses an it is sealed that the mouth of pipe department at the test tube has increased the second in the connected mode between air inlet plug and the test tube, even there is gas leakage between the inner wall of sealing washer and test tube, so the second way is sealed also can effectively prevent gas leakage outside, therefore this has just effectively improved the sealing performance between air inlet plug and the test tube, and then has guaranteed the reliability of gas tightness testing result.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of an air inlet plug in an embodiment of the present invention;
fig. 2 is a schematic view of the pipe orifice sealing air inlet device and the product to be detected in the embodiment of the present invention, partially cut away;
fig. 3 is a schematic partial cross-sectional view of another angle when the pipe orifice sealing air inlet device is matched with a product to be detected in the embodiment of the present invention.
Wherein,
the device comprises an air inlet plug 1, an inserting section 2, a sealing ring 3, a port sealing element 4, a positioning shoulder 5, a conical guide inclined plane 6, an air inlet 7, a piston cylinder 8, a pressing element fixing plate 9, a movable plate 10 and a detection tube 11.
Detailed Description
The core of the utility model lies in providing a sealed air inlet unit of mouth of pipe to can guarantee the leakproofness between air inlet plug and the detecting tube, thereby the reliability of testing result when improving the gas tightness and detecting.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1, fig. 2 and fig. 3 simultaneously, fig. 1 is a schematic structural diagram of an air inlet plug in an embodiment of the present invention, fig. 2 is a schematic partial sectional view of an embodiment of the present invention, which illustrates a sealed air inlet device of a pipe orifice and a product to be detected, and fig. 3 is a schematic partial sectional view of another angle when the sealed air inlet device of the pipe orifice and the product to be detected are matched.
The utility model discloses a sealed air inlet unit of mouth of pipe, mainly use the in-process at product gas tightness detection, for example commercial purifier is after the hot melt welding of accomplishing bottom plate part, just need test the welding gas tightness of inside, this sealed air inlet unit of mouth of pipe includes air inlet plug 1, sealing washer 3, port sealing member 4 and compress tightly the piece, wherein air inlet plug 1's tip is provided with the inside grafting section 2 of detecting tube 11 that can insert the product, as shown in figure 1, and still be provided with the air inlet 7 that is used for being connected with the gas-supply pipe on the air inlet plug 1 usually, 3 covers of sealing washer are established on the outer wall of grafting section 2, and stretch into the inside back of detecting tube 11 at grafting section 2, sealing washer 3 can realize with the sealed cooperation between the detecting tube 11 inner wall. The port sealing member 4 is fixedly arranged on the air inlet plug 1, and meanwhile, after the insertion section 2 extends into the detection pipe 11, the port sealing member 4 can also be compressed and sealed with the pipe orifice of the detection pipe 11, as shown in fig. 2 and 3, the compression member is mainly used for compressing the port sealing member 4 at the pipe orifice part of the detection pipe 11 so as to ensure the sealing performance of the pipe orifice part of the detection pipe 11.
It can be easily found that in the pipe orifice sealing air inlet device disclosed in the above embodiment, a double sealing structure is formed between the air inlet plug 1 and the detection pipe 11, wherein the sealing ring 3 and the inner wall of the detecting tube 11 form a first seal for preventing gas leakage, a second seal for preventing gas leakage is formed by compressing between the tube opening of the detecting tube 11 and the port sealing element 4, compared with the single seal mode between the current air inlet plug 1 and the detecting tube 11, the connecting mode between the air inlet plug 1 and the detecting tube 11 disclosed in the utility model adds the second seal at the tube opening of the detecting tube 11, even if gas leaks between the sealing ring 3 and the inner wall of the detection pipe 11, the second seal can effectively prevent the gas from leaking to the outside, therefore, the sealing performance between the air inlet plug 1 and the detection pipe 11 is effectively improved, and the reliability of the air tightness detection result is further ensured.
As shown in fig. 2, in order to make the structure of the nozzle sealing air inlet device more compact, in general, a person skilled in the art may further provide a supporting device for supporting the pressing member, in this embodiment, the pressing member is specifically a piston cylinder 8, of course, the piston cylinder 8 may be an air cylinder or an oil cylinder, and a cylinder body of the piston cylinder 8 is fixedly connected to a pressing member fixing plate 9, a piston end of the piston cylinder 8 is fixedly connected to a movable plate 10, and the air inlet plug 1 is fixedly connected to the movable plate 10.
The compressing element fixing plate 9 is a fixing element, and the position of the compressing element fixing plate is not changed, so that in the process of extending and retracting the piston rod of the piston cylinder 8, the piston rod drives the movable plate 10 to move back and forth, the movable plate 10 drives the air inlet plug 1 fixedly connected with the movable plate 10 to move back and forth, and further, the port sealing element 4 fixedly arranged on the air inlet plug 1 and the pipe orifice of the detection pipe 11 are compressed and sealed.
It can be easily understood that, it can also adopt other mechanisms that can realize seesaw to replace except adopting the piston cylinder to compress tightly the piece, for example the lead screw slider mechanism that provides in this embodiment, it is specific, the lead screw is driven by the motor and is carried out clockwise and anticlockwise rotation, slider and lead screw cooperation, and the circumference of slider is fixed, therefore under lead screw pivoted effect, the slider can only move along the axis direction of lead screw, air inlet plug 1 fixed connection is on the slider, therefore under the drive of slider, air inlet plug 1 will realize seesaw, air inlet plug 1 drives the mouth of pipe realization of port sealing member 4 and the test tube 11 that links firmly rather than compressing tightly sealed.
The above embodiment discloses two kinds of concrete realization forms that compress tightly the piece, should understand, except above-mentioned two kinds of realization forms, compress tightly the piece and have the realization form of multiple difference, the embodiment of the utility model provides an to this again carry out the introduction one by one.
In order to further guarantee the sealing effect, in this embodiment, the number of the sealing rings 3 sleeved on the outer wall of the insertion section 2 should be no less than two, as shown in fig. 1, more preferably, a sealing ring accommodating groove for accommodating the sealing rings 3 is provided on the outer wall of the insertion section 2, the number of the sealing ring accommodating grooves is consistent with the number of the sealing rings 3 on the insertion section 2, and the sealing ring accommodating groove can effectively prevent the sealing rings 3 from moving in the axial direction of the insertion section 2.
One side of the port sealing element 4 opposite to the detection tube 11 can be a plane structure, after the port sealing element 4 contacts with the detection tube 11, the port sealing element 4 deforms, so that the tube orifice of the detection tube 11 is surrounded and sealed, in order to further improve the sealing effect of the port part of the detection tube 11, in the embodiment, a sealing ring groove which can be embedded by the end part of the detection tube 11 is further formed in one side of the port sealing element 4 opposite to the detection tube 11, the groove width of the sealing ring groove is slightly smaller than the thickness of the tube wall of the detection tube 11, and the difference value is preferably 0.3-0.5mm, so that the sealing ring groove can form tight surrounding and sealing for the tube orifice of the detection tube 11. The inner side surface of the sealing ring groove can be also provided with a guide inclined surface to facilitate the smooth embedding of the end part of the detection pipe 11 into the sealing ring groove, and the guide inclined surface is a conical inclined surface generally.
As shown in FIG. 1, for the convenience of inserting into the interior of the detection tube 11, the end of the insertion section 2 of the air inlet plug 1 is further provided with a conical guide inclined surface 6, and the conicity of the conical guide inclined surface 6 is between 20 and 30 degrees.
The port sealing member 4 may be directly fixed on the inlet plug 1, but in order to ensure that the port sealing member 4 has sufficient supporting strength, the port sealing member 4 needs to have a larger thickness, for this reason, in the pipe orifice sealing inlet device disclosed in the present embodiment, the inlet plug 1 further has a positioning shoulder 5, the positioning shoulder 5 and the inlet plug 1 may be of an integral structure or a detachable structure, and the port sealing member 4 is fixedly arranged on the positioning shoulder 5, as shown in fig. 1.
In the embodiment of the present invention, the sealing ring 3 is preferably a soft rubber sealing ring, and the port sealing member 4 is preferably a soft rubber port sealing member, so as to realize reliable sealing between the inlet plug 1 and the detecting tube 11 by using the larger plastic deformation capability of the sealing ring 3 and the port sealing member 4 itself.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A sealed-pipe-orifice air intake apparatus, comprising:
the air inlet plug (1), the end of the air inlet plug (1) is provided with a plug-in section (2) which can be inserted into the detection pipe (11);
the sealing ring (3) is sleeved on the outer wall of the insertion section (2) and is used for being in sealing fit with the inner wall of the detection tube (11);
the port sealing piece (4) is fixedly arranged on the air inlet plug (1), and the port sealing piece (4) is pressed and sealed with the pipe orifice of the detection pipe (11) after the insertion section (2) extends into the detection pipe (11);
and the pressing piece is used for pressing the port sealing piece (4) on the nozzle of the detection pipe (11).
2. The pipe orifice seal air inlet device according to claim 1, wherein the compressing member is a piston cylinder (8), a cylinder body of the piston cylinder (8) is fixedly connected with a compressing member fixing plate (9), a movable plate (10) is fixedly connected with a piston end of the piston cylinder (8), and the air inlet plug (1) is fixedly connected with the movable plate (10).
3. The orifice seal air inlet assembly of claim 1, wherein said compression member comprises:
a lead screw driven by a motor;
and the sliding block is matched with the lead screw, and the air inlet plug (1) is fixedly connected to the sliding block.
4. The pipe orifice sealing air inlet device as claimed in claim 1, wherein the number of the sealing rings (3) sleeved on the outer wall of the insertion section (2) is not less than two, and the sealing rings (3) are arranged at intervals.
5. The pipe orifice sealing air inlet device as claimed in claim 4, wherein a sealing ring accommodating groove is formed on the outer wall of the insertion section (2), and the sealing ring (3) is embedded in the sealing ring accommodating groove.
6. The pipe orifice sealing air inlet device as claimed in claim 1, wherein a sealing ring groove for inserting the end of the detection pipe (11) is further formed on the side of the port sealing member (4) opposite to the detection pipe (11).
7. The nozzle-sealing air inlet device according to claim 6, wherein the inner side surface of the sealing ring groove is further provided with a guide slope for facilitating the insertion of the end of the detection tube (11) into the sealing ring groove.
8. The nozzle-sealing air inlet device as claimed in claim 1, wherein the end of the plug section (2) is further provided with a conical guide slope (6) for facilitating self-insertion into the detection tube (11).
9. Nozzle-sealing air inlet device according to claim 1, characterized in that the inlet plug (1) further has a positioning shoulder (5), and the port seal (4) is fixedly arranged on the positioning shoulder (5).
10. A nozzle-sealing air inlet device according to any one of claims 1 to 9, wherein the sealing ring (3) and the port sealing member (4) are both made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420579573.XU CN204176190U (en) | 2014-10-08 | 2014-10-08 | Pipe orifice sealing air inlet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420579573.XU CN204176190U (en) | 2014-10-08 | 2014-10-08 | Pipe orifice sealing air inlet device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204176190U true CN204176190U (en) | 2015-02-25 |
Family
ID=52565000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420579573.XU Expired - Lifetime CN204176190U (en) | 2014-10-08 | 2014-10-08 | Pipe orifice sealing air inlet device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204176190U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378858A (en) * | 2017-03-15 | 2017-11-24 | 吉林大学 | The equipment of the fast automatic sealing of electrodynamic pump high pressure oil export |
| CN108325012A (en) * | 2018-01-31 | 2018-07-27 | 李瑞玲 | A kind of obstetrics and gynecology department cleaning sterilizing device |
| CN112361213A (en) * | 2020-10-06 | 2021-02-12 | 隗有祥 | Internal-inserting external-supporting type high-pressure gas injection device |
-
2014
- 2014-10-08 CN CN201420579573.XU patent/CN204176190U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378858A (en) * | 2017-03-15 | 2017-11-24 | 吉林大学 | The equipment of the fast automatic sealing of electrodynamic pump high pressure oil export |
| CN108325012A (en) * | 2018-01-31 | 2018-07-27 | 李瑞玲 | A kind of obstetrics and gynecology department cleaning sterilizing device |
| CN112361213A (en) * | 2020-10-06 | 2021-02-12 | 隗有祥 | Internal-inserting external-supporting type high-pressure gas injection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150225 |