CN208704964U - A kind of small-sized leak hole device - Google Patents
A kind of small-sized leak hole device Download PDFInfo
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- CN208704964U CN208704964U CN201821423608.5U CN201821423608U CN208704964U CN 208704964 U CN208704964 U CN 208704964U CN 201821423608 U CN201821423608 U CN 201821423608U CN 208704964 U CN208704964 U CN 208704964U
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Abstract
The utility model provides a kind of small-sized leak hole device, including shell, the mounting hole for assembling capillary is provided in the middle part of shell, the outlet end of capillary extends to the outside of shell after mounting hole, it is tightly connected between capillary and mounting hole by sealing material, capillary and the concentric setting of shell, the arrival end of shell are cased with entrance pressure cap, the outlet end of shell is cased with outlet pressure cap, and O-ring is housed for sealing when using in the outside of device.The leak hole installation conveniency problem that the leak detection that the utility model can solve small-size product is used as equipment and tooling point to examine in the process; and integrated filter structure protects leak hole not damaged by the blocking of impurity; leak rate precision can reach 5%, and it is simple to carry sealing structure installation.
Description
Technical field
The utility model belongs to leak detection technology field, more particularly, to a kind of small-sized leak hole device.
Background technique
In the course of work of detection leakage, a kind of device of generation firm discharge is needed to carry out detection device and tooling
Point inspection.But the product of small size is carried out when leak detection installs traditional leak hole since the too big installation of size is not very square
Just, some are not applicable.Therefore it needs the sealing structure compact in size and included by referance leak to be easy to use, collects simultaneously
Leak hole is protected at filter structure, there is a higher leak rate precision, realizes the producing line leakage detection equipment and tooling of small-size product
Point inspection.
The prior art uses film permeation principle, its leak rate coverage area of this technology is small, and size is larger.It is existing
The leak hole existing defects of small size, leak rate precision is low, and does not integrate filter structure, and no sealing structure installation is inconvenient.It is existing
The shortcomings that technology is that (1) size is big, in inconvenience installation to small-size product；(2) leak rate precision is low；(3) there is no filtering function；
(4) leak rate coverage area is small.
Summary of the invention
In view of this, the utility model is directed to a kind of small-sized leak hole device, to solve the above technical problems.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of small-sized leak hole device, including shell are provided with the mounting hole for assembling capillary, capillary in the middle part of shell
Outlet end pass through mounting hole after extend to the outside of shell, by sealing material sealed connection between capillary and mounting hole,
Capillary and the concentric setting of shell, the arrival end of shell are cased with entrance pressure cap, and the outlet end of shell is cased with outlet pressure cap.
Further, it is provided with entrance corresponding with capillary in the middle part of entrance pressure cap, exports the middle part setting of pressure cap
There are outlet corresponding with capillary, entrance, capillary, the axis coincidence for exporting three.
Further, entrance corresponding with capillary, the inside cavity of entrance pressure cap are provided in the middle part of entrance pressure cap
Inlet is provided with the first filter element for filtering, the first filter element is close to entrance setting, shell and the first mistake
The pressure ring for fixing the first filter element is provided between filter unit.
Further, pressure ring and the concentric setting of shell, the both ends of pressure ring respectively with the end of shell, the first filter element
It abuts, the intercommunicating pore for being connected to entrance with capillary is provided in the middle part of pressure ring, the aperture of intercommunicating pore is greater than the aperture of entrance, connection
Hole is concentric with entrance.
Further, the inside cavity for exporting pressure cap is provided with the second filter element, the second filter element close to exit
It is close to outlet setting, the second filter element is fixed by pressure ring.
Further, it is separately provided for limiting entrance pressure cap, outlet pressure cap on the outer circle wall of shell
First stop collar and the second stop collar, its rear end is pressed on the first stop collar entrance pressure cap set on the shell, exports pressure cap
Its rear end is pressed on the second stop collar set on the shell.
Further, the first stop collar, the excircle diameter of the second stop collar and entrance pressure cap and the outer circle for exporting pressure cap
All diameters are identical.
Further, the annular groove for accommodating O-ring is provided in the outer circumferential wall of shell, O-ring is arranged in ring
In shape slot.
Further, the outlet end of capillary is located at the inside cavity of outlet pressure cap.
Further, capillary is stretched treated capillary, is stretched to one end of capillary, capillary
Internal aperture is the aperture of taper, and one end of capillary small-bore is positioned close at outlet pressure cap.
Compared with the existing technology, a kind of small-sized leak hole device described in the utility model has the advantage that
(1) leakage that the leak detection that the utility model can solve small-size product is used as equipment and tooling point to examine in the process
Conveniency problem is installed in hole, and integrated filter structure protects leak hole not damaged by the blocking of impurity, and leak rate precision can reach
5%, it is simple to carry sealing structure installation；
(2) the utility model by referance leak it is compact in size, be integrated with filter structure, included sealing structure with convenient
Using and have a degree of precision, realize the point inspection of producing line leakage detection equipment and tooling.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Description of symbols:
1, entrance pressure cap；101, entrance；2, shell；201, mounting hole；202, annular groove；203, the first stop collar；204,
Second stop collar；3, O-ring；4, pressure cap is exported；401, it exports；5, capillary；6, sealing material；7, pressure ring；8, the first filtering
Unit.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, a kind of small-sized leak hole device, including shell 2, the middle part of shell 2 are provided with for assembling capillary 5
Mounting hole 201, the outlet end of capillary 5 extend to the outside of shell 2, the input end and peace of capillary 5 after mounting hole 201
Dress is tightly connected between hole 201 by sealing material 6, and sealing material can be sealant, capillary 5 with shell 2 is concentric sets
It sets.The outer diameter of capillary 5 is slightly less than the aperture of mounting hole 201.
The arrival end of shell 2 is cased with entrance pressure cap 1, and the outlet end of shell 2 is cased with outlet pressure cap 4, entrance pressure cap 1, shell 2
With the outlet concentric setting of pressure cap 4.The outlet end of capillary 5 is located at the inside cavity of outlet pressure cap 4.
Capillary 5 is stretched treated capillary 5, is stretched to one end of capillary 5, such capillary 5
Internal aperture reforms into the aperture of taper, and one end of 5 small-bore of capillary is positioned close at outlet pressure cap 4, can lead in this way
Cross the outlet end of capillary 5 there are 5 surplus of capillary carry out trimming and adjust its leak rate, reach 5% leak rate required precision.Hair
Tubule 5 can be capillary glass tube.
The middle part of entrance pressure cap 1 is provided with entrance 101 corresponding with capillary 5, the middle part of outlet pressure cap 4 be provided with
The corresponding outlet 401 of capillary 5, entrance 101, capillary 5, the axis coincidence for exporting 401 threes.The cavity of entrance pressure cap 1
Internal that the first filter element 8 is provided at entrance 101, the first filter element 8 is close to entrance 101 and is arranged, shell 2 and first
The pressure ring 7 for fixing the first filter element 8 is provided between filter element 8.Pressure ring 7 and the concentric setting of shell 2, pressure ring 7
Both ends abutted respectively with the end of shell 2, the first filter element 8.The middle part of pressure ring 7, which is provided with, connects entrance 101 and capillary 5
Logical intercommunicating pore.The aperture of intercommunicating pore is greater than the aperture of entrance 101, and intercommunicating pore and entrance 101 are concentric.
The inside cavity for exporting pressure cap 4 is provided with the second filter element at outlet 401, and the second filter element is close to
Mouth 401 is arranged, and the second filter element is fixed by pressure ring 7.
First filter element 8 and the second filter element can according to need and selected, the first filter element 8 and second
Filter element can be the filtering material of the needs such as strainer, filter paper.First filter element 8 and the second filter element can pre- gas-tights
There are contamination and plugging leak holes in source.
The first limit limited to entrance pressure cap 1, outlet pressure cap 4 is separately provided on the outer circle wall of shell 2
Position ring 203 and the second stop collar 204,1 set of entrance pressure cap its end is pressed on the first stop collar 203 afterwards on shell 2, is exported
4 sets of pressure cap on shell 2 after its end be pressed on the second stop collar 204, the first stop collar 203, the second stop collar 204 it is outer
Circle diameter is identical as entrance pressure cap 1 and the outlet excircle diameter of pressure cap 4.
It is provided in 2 circumferential wall of shell between first stop collar 203 and the second stop collar 204 for accommodating O-ring 3
Annular groove 202.O-ring 3 is for sealing.
Except the mode of above-mentioned use press fitting assembles each components, the modes such as welding and stickup also can be used and carry out group
Dress.
Working principle of the utility model is:
When not in use, the utility model is fitted into Dust-proof bag, and be put into packing case, it is protected.
When in use, according to the flow direction of medium indicated on the utility model, the present apparatus is pacified according to the direction of mark
Use is filled, is adjusted entrance 101,401 pressure of outlet according to actual condition, the utility model can generate fixation
Flow, the present apparatus need to be demarcated on time.The utility model is sealed using O-ring 3, easy for installation.
The small size leak hole of the utility model, size minimum can reach φ 2.5*5 (mm)~φ 10*20 (mm), can reach
Leak rate range are as follows: 10-11Pa.m3/s~10-1Pa.m3/s。
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of small-sized leak hole device, it is characterised in that: including shell (2), shell is provided in the middle part of (2) for assembling capillary
(5) mounting hole (201), the outlet end of capillary (5) extend to the outside of shell (2), capillary after mounting hole (201)
(5) it is tightly connected between mounting hole (201) by sealing material (6), capillary (5) and shell (2) concentric setting, shell
(2) arrival end is cased with entrance pressure cap (1), and the outlet end of shell (2) is cased with outlet pressure cap (4), and the outside of shell (2) is provided with
O-ring (3).
2. small-sized leak hole device according to claim 1, it is characterised in that: be provided in the middle part of entrance pressure cap (1) and hair
The corresponding entrance (101) of tubule (5) exports and is provided with outlet (401) corresponding with capillary (5) in the middle part of pressure cap (4),
Entrance (101), capillary (5), the axis coincidence for exporting (401) three.
3. small-sized leak hole device according to claim 1, it is characterised in that: be provided in the middle part of entrance pressure cap (1) and hair
The corresponding entrance (101) of tubule (5), the inside cavity of entrance pressure cap (1) are provided at entrance (101) for filtering
First filter element (8), the first filter element (8) is close to entrance (101) setting, between shell (2) and the first filter element (8)
It is provided with the pressure ring (7) for fixing the first filter element (8).
4. small-sized leak hole device according to claim 3, it is characterised in that: pressure ring (7) and shell (2) concentric setting,
The both ends of pressure ring (7) are abutted with the end of shell (2), the first filter element (8) respectively, and pressure ring is provided in the middle part of (7) by entrance
(101) intercommunicating pore being connected to capillary (5), the aperture of intercommunicating pore are greater than the aperture of entrance (101), intercommunicating pore and entrance
(101) concentric.
5. small-sized leak hole device according to claim 1, it is characterised in that: the inside cavity of outlet pressure cap (4) is close to out
The second filter element is provided at mouth (401), the second filter element is close to outlet (401) setting, and the second filter element passes through pressure
Ring (7) is fixed.
6. small-sized leak hole device according to claim 1, it is characterised in that: be respectively set on the outer circle wall of shell (2)
There are the first stop collar (203) and the second stop collar (204) for being limited to entrance pressure cap (1), outlet pressure cap (4), enters
Its end is pressed on the first stop collar (203) after mouth pressure cap (1) covers on shell (2), and outlet pressure cap (4) is covered in shell (2)
Its end is pressed on the second stop collar (204) after upper.
7. small-sized leak hole device according to claim 6, it is characterised in that: the first stop collar (203), the second stop collar
(204) excircle diameter is identical as entrance pressure cap (1) and the outlet excircle diameter of pressure cap (4).
8. small-sized leak hole device according to claim 1, it is characterised in that: be provided in the outer circumferential wall of shell (2)
For accommodating the annular groove (202) of O-ring (3), O-ring (3) setting is in annular groove (202).
9. small-sized leak hole device according to claim 1, it is characterised in that: outlet (401) end of capillary (5) is located at
The inside cavity of mouth pressure cap (4).
10. small-sized leak hole device according to claim 1, it is characterised in that: capillary (5) is that stretched treated
Capillary (5) stretches one end of capillary (5), and the internal aperture of capillary (5) is the aperture of taper, capillary (5)
One end of small-bore is positioned close at outlet pressure cap (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821423608.5U CN208704964U (en) | 2018-08-31 | 2018-08-31 | A kind of small-sized leak hole device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821423608.5U CN208704964U (en) | 2018-08-31 | 2018-08-31 | A kind of small-sized leak hole device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208704964U true CN208704964U (en) | 2019-04-05 |
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ID=65945649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821423608.5U Active CN208704964U (en) | 2018-08-31 | 2018-08-31 | A kind of small-sized leak hole device |
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| Country | Link |
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| CN (1) | CN208704964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956016A (en) * | 2018-08-31 | 2018-12-07 | 天津博益气动股份有限公司 | A kind of small-sized leak hole device |
-
2018
- 2018-08-31 CN CN201821423608.5U patent/CN208704964U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956016A (en) * | 2018-08-31 | 2018-12-07 | 天津博益气动股份有限公司 | A kind of small-sized leak hole device |
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