CN209689646U - A kind of reed-type probe structure - Google Patents
A kind of reed-type probe structure Download PDFInfo
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- CN209689646U CN209689646U CN201921491464.1U CN201921491464U CN209689646U CN 209689646 U CN209689646 U CN 209689646U CN 201921491464 U CN201921491464 U CN 201921491464U CN 209689646 U CN209689646 U CN 209689646U
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- reed
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- type probe
- needle holder
- probe structure
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Abstract
The utility model relates to bubble characteristic measuring techniques fields, disclose a kind of reed-type probe structure, including needle section, needle holder and attachment base, and one end of needle holder is inserted into attachment base, and attachment base is equipped with stepped hole；Two fixed plates are provided at circumferentially spaced along stepped hole inner wall, and one end of each fixed plate is connected to the cascaded surface of stepped hole, and the other end is connected to the end face of needle holder；Each fixed plate inner wall is equipped with conductive layer, reed is set to the inner wall of conductive layer, needle section can move back and forth along its length, make one end through needle holder and one end of casing being made to be connected to the end face of fixed plate, while making the free end of connecting plate from passing through between two reeds and clamped by two reeds or needle section is made to be detached from needle holder.Needle section and needle holder grafting in needle section insertion needle seat and will make one end of casing be connected to fixed plate end face in the utility model, position to needle section, are clamped using reed to connecting plate, it is replaceable needle section that needle section, which is extracted,.
Description
Technical field
The utility model relates to bubble characteristic measuring techniques field more particularly to a kind of reed-type probe structures.
Background technique
Biphase gas and liquid flow is a kind of work for being widely present in the equipment of the industries such as chemical industry, petroleum, metallurgy, pharmacy and nuclear energy
State.To make engineering design economical rationality, equipment running optimizatin and the various factors of safety of evaluation etc., to the gas in biphase gas and liquid flow
The characteristic parameters such as bubble parameter such as size distribution, speed and gas holdup measure.
Conducting probe method is that according to gas-liquid two-phase there is this physical characteristic of different electric conductivity to realize, liquids in general
Conductivity be much higher than the conductivity of gas.When in measurement object biphase gas and liquid flow alternately through the measurement of conducting probe front end
When point, due to the variation of conductivity, conducting probe flows the voltage signal of corresponding consecutive variations by exporting with liquid phase, this
Signal, which converts input computer through A/D, can be obtained the local Bubble Parameters of probe present position through data processing.Single electrode
Conducting probe can measure local porosity and the bubble frequency of two phase flow, and multi-electrode conducting probe is in addition to being capable of measuring both the above
Parameter is also used to measure the statistical parameters such as bubble velocity, bubble size and gas-liquid interfacial concentration.
The needle section of conducting probe is that the critical component that the method is implemented, structure and size influence the accuracy of measurement
It is huge.It is the point of syringe needle with the live part of bubble contact in measurement process, it is desirable that it has between accurately fixed measurement
Away from, small and stable conductive area (with fine-resolution liquid phase), intact insulating layer, enough probe tip length and strong
It spends (reduce interference of the probe rides portion to flow field near probe tip).Conducting probe may be because in use for some time
In flow field by the friction in flow field, shearing and solid particle shock and deformation or damage, for the accuracy and again for guaranteeing measurement
Renaturation just needs replacing.Existing sonde configuration is that integral adhesive adds welded type, is not easy readily and economically to replace.Therefore, mesh
It is preceding to need a kind of reed-type probe structure for being conveniently replaceable needle section urgently to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of reed-type probe structures, are able to solve needle in existing probe structure
The problem of head can not be replaced.
For this purpose, the utility model uses following technical scheme:
A kind of reed-type probe structure, comprising:
Needle section comprising casing, electrode and connecting plate, one end of the electrode protrude into described sleeve pipe and with the company
One end of fishplate bar is electrically connected, and the free end of the free end of the electrode and the connecting plate is stretched from the both ends of described sleeve pipe respectively
Out；
One end of needle holder and attachment base, the needle holder is inserted into the attachment base, and the attachment base is equipped with ladder
Hole；
Two fixed plates, two fixed plates are provided at circumferentially spaced along the stepped hole inner wall and gluing is in the ladder
One end of hole inner wall, each fixed plate is connected to the cascaded surface of the stepped hole, and the other end is connected to the needle holder
End face；
Reed, the inner wall of each fixed plate are equipped with conductive layer, the axial ends of the conductive layer and corresponding institute
It states and all has spacing between the axial end face of fixed plate, the reed is set to the inner wall of the conductive layer, and the needle section can
It moves back and forth along its length, make one end through the needle holder and one end of described sleeve pipe is made to be connected to the fixed plate
End face, and make the free end of the connecting plate from passing through between two reeds and clamped by two reeds simultaneously,
Or the needle section is made to be detached from the needle holder.
As a kind of optimal technical scheme of above-mentioned reed-type probe structure, the attachment base is far from the needle holder
One end is connected with probe rod, amplifier box, end cap and signal plug in turn；
Circuit board is equipped in the amplifier box, the circuit board is electrically connected to the conductive layer, the electricity by conducting wire
Road plate passes through ground wire grounded and is connected to the signal plug.
As a kind of optimal technical scheme of above-mentioned reed-type probe structure, the needle holder and the attachment base are logical
It crosses described ground wire grounded.
As a kind of optimal technical scheme of above-mentioned reed-type probe structure, the attachment base and the probe rod are sealed
Connection is equipped with sealing ring between described sleeve pipe and the needle holder.
As a kind of optimal technical scheme of above-mentioned reed-type probe structure, the probe rod and the amplifier box,
The amplifier box is bolted with the end cap, and the end cap is threadedly coupled with the signal plug.
As a kind of optimal technical scheme of above-mentioned reed-type probe structure, the conductive layer inner wall is equipped with and is fixedly arranged on two
Between a fixed plate and the postive stop baffle that is made from a material that be electrically non-conductive.
As a kind of optimal technical scheme of above-mentioned reed-type probe structure, described sleeve pipe is connected to the fixed plate
While end face, one end of the connecting plate is connected to the postive stop baffle or is equipped with gap between the postive stop baffle.
As a kind of optimal technical scheme of above-mentioned reed-type probe structure, waterproof glue is equipped in described sleeve pipe, it is described
Electrode and the connecting plate are inserted in the waterproof glue.
As a kind of optimal technical scheme of above-mentioned reed-type probe structure, the electrode is single or double joint, when for
When double joint, the length of the every electrode is identical or different.
As a kind of optimal technical scheme of above-mentioned reed-type probe structure, the electrode and the connecting plate weld or
Using conductive adhesive.
The utility model has the beneficial effects that needle section is connect by the way of grafting with needle holder in the utility model, it will
In needle section insertion needle seat and one end of casing is made to be connected to the end face of fixed plate, realizes and needle section is positioned, simultaneously
The free end of connecting plate is inserted between two reeds and being clamped using reed, realizes the fixation to needle section；It is needing
It when replacing needle section, only needs directly to extract needle section, substitute mode is simple, and replacement is quick.And the axis of conductive layer
Spacing is all had between both ends and the axial end face of corresponding fixed plate, so that conductive layer will not contact needle holder and connection
Seat avoids that electric leakage accident occurs.
Detailed description of the invention
It, below will be to the utility model embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to the content of the utility model embodiment and these attached drawings.
Fig. 1 is the structural schematic diagram of reed-type probe structure provided by the embodiment of the utility model；
Fig. 2 is the cross-sectional view cooperated between needle section provided by the embodiment of the utility model, needle holder and attachment base；
Fig. 3 is the cross-sectional view of attachment base provided by the embodiment of the utility model；
Fig. 4 is the structural representation cooperated between needle section provided by the embodiment of the utility model, needle holder and attachment base
Figure.
In figure:
1, needle section；11, casing；12, electrode；13, connecting plate；
2, needle holder；21, the first seal groove；3, attachment base；31, the second seal groove；32, blind hole；33, the first hole；34,
Two holes；35, third hole；36, the first cascaded surface；37, the second cascaded surface；
4, fixed plate；5, reed；6, circuit board；7, probe rod；8, amplifier box；9, end cap；10, signal plug；20, it leads
Line；30, ground wire；40, sealing ring；50, postive stop baffle.
Specific embodiment
The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer,
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.It is understood that
Specific embodiment described herein is used only for explaining the utility model, rather than the restriction to the utility model.In addition it also needs
It is noted that illustrating only part relevant to the utility model for ease of description, in attached drawing and not all.
As depicted in figs. 1 and 2, present embodiments provide a kind of reed-type probe structure, including needle section 1, needle holder 2,
3, two fixed plates 4 of attachment base, reed 5 and conductive layer.Wherein, needle section 1 includes casing 11, electrode 12 and connecting plate 13, electricity
One end of pole 12 is protruded into casing 11 and is electrically connected with one end of connecting plate 13, the free end of electrode 12 and the freedom of connecting plate 13
End is stretched out from the both ends of casing 11 respectively.Specifically, waterproof glue is equipped in casing 11, electrode 12 and connecting plate 13 are inserted in resistance to
In glue.It, can be using welding between electrode 12 and connecting plate 13 in order to guarantee being electrically connected between electrode 12 and connecting plate 13
Or use conductive adhesive, it is preferable that electrode 12 and connecting plate 13 are welded and fixed.In the present embodiment, the circumferential direction of above-mentioned electrode 12
Side wall is equipped with insulating layer, and the measurement end of electrode 12 does not set insulating layer, avoids contact with the circumferential side wall of electrode 12 and cause to leak electricity
Accident occurs.
Above-mentioned electrode 12 is single or double joint, and when for double joint, the length of every electrode 12 is identical or different.The present embodiment
In, electrode 12 is double joint, and the length of each electrode 12 is identical.It is understood that in the other embodiments of the utility model, electricity
Pole 12 can also be even number root greater than 2, connecting plate 13 can for one, it is two or more, more electrodes 12 are non-interfering
The two sides of connecting plate 13 are distributed parallelly on, and the length of every electrode 12 is all identical, all different or part is identical, passes through
The different settings of radical and length to electrode 12, can be realized the measurement to different Bubble Parameters.Specifically, single electrode conductance
Probe (i.e. Single lead 12) can measure local porosity and the bubble frequency of two phase flow, multi-electrode conducting probe (i.e. double joint
Or more electrodes 12) it is capable of measuring bubble velocity, bubble size and interfacial concentration local statistical parameter.
In one end insertion attachment base 3 of needle holder 2, attachment base 3 is equipped with stepped hole；Two fixed plates 4 are along stepped hole
Wall is provided at circumferentially spaced and gluing is in stepped hole inner wall, and one end of each fixed plate 4 is connected to the cascaded surface of stepped hole, the other end
It is connected to the end face of needle holder 2, is located in fixed plate 4 between cascaded surface and needle holder 2.Specifically, as shown in figure 3, ladder
Hole includes setting gradually along its axial direction and the first hole 33, the second hole 34 and third hole 35 that aperture is gradually increased, wherein the first hole
33 and second hole 34 form the first cascaded surface 36, the second hole 34 and third hole 35 form the second cascaded surface 37.The insertion of needle holder 2 the
In one hole 33 and it is connected to the first cascaded surface 36, above-mentioned fixed plate 4 is adhered to 34 inner wall of the second hole, supports one end of fixed plate 4
It is connected to the second cascaded surface 37, the other end is connected to the end face of needle holder 2.In the present embodiment, needle holder 2 and the welding of attachment base 3 are solid
It is fixed.
The inner wall of each fixed plate 4 is equipped with conductive layer, and in order to avoid the accident of leaking electricity, fixed plate 4 is close to its axial direction
The position at both ends does not set conductive layer, i.e., all has between the axial ends of conductive layer and the axial end face of corresponding fixed plate 4
Spacing, therefore, the axial length of conductive layer are less than the axial length of fixed plate 4, so that conductive layer will not contact needle holder 2 and connect
Joint chair 3.Preferably, above-mentioned conductive layer is the copper clad layers that copper product is formed by coating.
Reed 5 is set to the inner wall of conductive layer, and in the present embodiment, reed 5 and fixed plate 4 are fixed using welding manner, connection
Mode is simple, can fast implement connection between the two.
Further, sealing ring 40 is equipped between casing 11 and needle holder 2.Specifically, is arranged on 2 inner wall of needle holder
One seal groove 21, the first seal groove 21 are interior equipped with the sealing ring 40 being located between 11 outer wall of 2 inner wall of needle holder and casing.In order to
Sealing effect is improved, the sealing ring 40 of two or more can be set in the first seal groove 21.Illustratively, above-mentioned sealing
There are two circle 40 is set.
In the present embodiment, needle section 1 can move back and forth along its length, make one end through needle holder 2 and make to cover
One end of pipe 11 is connected to the end face of fixed plate 4, and make simultaneously the free end of connecting plate 13 from passed through between two reeds 5 and by
Two reeds 5 clamp, or needle section 1 is made to be detached from needle holder 2.Needle section 1 is connect by the way of grafting with needle holder 2, by needle
In 1 insertion needle seat 2 of head and one end of casing 11 is made to be connected to the end face of fixed plate 4, realizes and needle section 1 is positioned,
The free end of connecting plate 13 is inserted between two reeds 5 and being clamped using reed 5 simultaneously, is realized to needle section 1
It is fixed；When needing replacing needle section 1, only need directly to extract needle section 1, substitute mode is simple, and replacement is quick.
Attachment base 3 is connected with probe rod 7, amplifier box 8, end cap 9 and signal plug in turn far from one end of needle holder 2
10；Circuit board 6 is equipped in amplifier box 8, circuit board 6 is electrically connected to conductive layer by conducting wire 20, and circuit board 6 is connect by ground wire 30
Ground is simultaneously connected to signal plug 10.Preferably, foregoing circuit plate 6 is welded in signal plug 10, and probe rod 7 and amplifier box 8 are put
Big device box 8 is bolted with end cap 9, and end cap 9 is threadedly coupled with signal plug 10.
In order to avoid there are electrical leakage problems, above-mentioned needle holder 2 and attachment base 3 are grounded by ground wire 30.Wherein, attachment base
3 tail end faces are equipped with blind hole 32, and 32 inner wall of blind hole connects ground wire 30.
Attachment base 3 and probe rod 7 are tightly connected, it is preferable that attachment base 3 and probe rod 7 are by sealing glue connection, specifically
The second seal groove 31 is arranged on 3 outer wall of attachment base, is equipped with sealant in the second seal groove 31 as shown in Figure 3 and Figure 4 for ground, with
Guarantee the sealing performance that attachment base 3 and probe rod 7 connect.It, can also be second in the other embodiments of certain the utility model
Setting sealing ring is in seal groove 31 to replace sealant.
Further, conductive layer inner wall is equipped with the postive stop baffle 50 being fixedly arranged between two fixed plates 4.Postive stop baffle 50 is set
Between two fixed plates 4, the stability of fixed plate 4 can be improved.In order to avoid postive stop baffle 50 makes the installation of needle section 1
At interference, while casing 11 is connected to the end face of fixed plate 4, connecting plate 13 is connected to limit close to one end of postive stop baffle 50
Baffle 50 is equipped with gap between postive stop baffle 50.And in order to avoid the transmission to signal impacts, it is desirable that limiting block
Plate 50 is made from a material that be electrically non-conductive.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.Wherein, term " first
Set " and " second position " be two different positions.
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, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Claims (10)
1. a kind of reed-type probe structure characterized by comprising
Needle section (1) comprising casing (11), electrode (12) and connecting plate (13), one end of the electrode (12) are protruded into described
It is electrically connected in casing (11) and with one end of the connecting plate (13), the free end of the electrode (12) and the connecting plate (13)
Free end respectively from the both ends of described sleeve pipe (11) stretch out；
One end of needle holder (2) and attachment base (3), the needle holder (2) is inserted into the attachment base (3), the attachment base (3)
It is equipped with stepped hole；
Two fixed plates (4), two fixed plates (4) are provided at circumferentially spaced along the stepped hole inner wall and gluing is in the rank
One end of terraced hole inner wall, each fixed plate (4) is connected to the cascaded surface of the stepped hole, and the other end is connected to the syringe needle
The end face of seat (2)；
Reed (5), the inner wall of each fixed plate (4) are equipped with conductive layer, the axial ends of the conductive layer with it is corresponding
Spacing is all had between the axial end face of the fixed plate (4), the reed (5) is set to the inner wall of the conductive layer, the needle
Head (1) can move back and forth along its length, make one end through the needle holder (2) and make the one of described sleeve pipe (11)
End is connected to the end faces of the fixed plate (4), and make simultaneously the free end of the connecting plate (13) from two reeds (5) it
Between pass through and clamped by two reeds (5), or the needle section (1) is made to be detached from the needle holder (2).
2. reed-type probe structure according to claim 1, which is characterized in that the attachment base (3) is far from the syringe needle
One end of seat (2) is connected with probe rod (7), amplifier box (8), end cap (9) and signal plug (10) in turn；
Circuit board (6) are equipped in the amplifier box (8), the circuit board (6) is electrically connected to the conduction by conducting wire (20)
Layer, the circuit board (6) are grounded by ground wire (30) and are connected to the signal plug (10).
3. reed-type probe structure according to claim 2, which is characterized in that the needle holder (2) and the attachment base
(3) it is grounded by the ground wire (30).
4. reed-type probe structure according to claim 2, which is characterized in that the attachment base (3) and the probe rod
(7) it is tightly connected, is equipped with sealing ring (40) between described sleeve pipe (11) and the needle holder (2).
5. reed-type probe structure according to claim 2, which is characterized in that the probe rod (7) and the amplifier
Box (8), the amplifier box (8) and the end cap (9) are bolted, the end cap (9) and the signal plug (10) spiral shell
Line connection.
6. reed-type probe structure according to any one of claims 1 to 5, which is characterized in that the conductive layer inner wall is set
There is the postive stop baffle (50) for being fixedly arranged on and between two fixed plates (4) and being made from a material that be electrically non-conductive.
7. reed-type probe structure according to claim 6, which is characterized in that described sleeve pipe (11) is connected to the fixation
While the end face of plate (4), one end of the connecting plate (13) be connected to the postive stop baffle (50) or with the postive stop baffle
(50) gap is equipped between.
8. reed-type probe structure according to any one of claims 1 to 5, which is characterized in that set in described sleeve pipe (11)
There is waterproof glue, the electrode (12) and the connecting plate (13) are inserted in the waterproof glue.
9. reed-type probe structure according to any one of claims 1 to 5, which is characterized in that the electrode (12) is single
Root or double joint, when for double joint, the length of the every electrode (12) is identical or different.
10. reed-type probe structure according to any one of claims 1 to 5, which is characterized in that the electrode (12) and institute
State connecting plate (13) welding or using conductive adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921491464.1U CN209689646U (en) | 2019-09-09 | 2019-09-09 | A kind of reed-type probe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921491464.1U CN209689646U (en) | 2019-09-09 | 2019-09-09 | A kind of reed-type probe structure |
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| Publication Number | Publication Date |
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| CN209689646U true CN209689646U (en) | 2019-11-26 |
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ID=68609740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921491464.1U Active CN209689646U (en) | 2019-09-09 | 2019-09-09 | A kind of reed-type probe structure |
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| CN (1) | CN209689646U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113009196A (en) * | 2021-03-02 | 2021-06-22 | 上海捷策创电子科技有限公司 | Probe for chip test and chip test device |
| CN117054703A (en) * | 2023-10-12 | 2023-11-14 | 苏州微飞半导体有限公司 | Probe device for IC test |
-
2019
- 2019-09-09 CN CN201921491464.1U patent/CN209689646U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113009196A (en) * | 2021-03-02 | 2021-06-22 | 上海捷策创电子科技有限公司 | Probe for chip test and chip test device |
| CN113009196B (en) * | 2021-03-02 | 2022-03-18 | 上海捷策创电子科技有限公司 | Probe for chip test and chip test device |
| CN117054703A (en) * | 2023-10-12 | 2023-11-14 | 苏州微飞半导体有限公司 | Probe device for IC test |
| CN117054703B (en) * | 2023-10-12 | 2024-01-09 | 苏州微飞半导体有限公司 | Probe device for IC test |
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