CN207335922U - A kind of cable accessory interfacial pressure measuring device - Google Patents
A kind of cable accessory interfacial pressure measuring device Download PDFInfo
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- CN207335922U CN207335922U CN201721460795.XU CN201721460795U CN207335922U CN 207335922 U CN207335922 U CN 207335922U CN 201721460795 U CN201721460795 U CN 201721460795U CN 207335922 U CN207335922 U CN 207335922U
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- measuring stick
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- cable accessory
- measuring device
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Abstract
A kind of cable accessory interfacial pressure measuring device, including a pressure-regulated fluid source, a pressure-measuring device is connected through a pipeline, one column measuring stick, it is inserted into during measurement in the through hole of cable accessory, an at least ascending pipe is built in the column measuring stick, the one end of one end of the ascending pipe from the column measuring stick stretches out and connects the pressure-measuring device, the other end of the ascending pipe has a measured hole in the column measuring stick side, the measured hole has annular groove encirclement in the column measuring stick side, one discharge pipe is built in the column measuring stick, one end of the discharge pipe connects the annular groove, the other end stretches out the end of the column measuring stick.The utility model can be realized：1st, the accuracy of lifting measurement；2nd, the pressure in cable accessory arbitrary interface region is accurately measured；3rd, the measurement without differential consecutive variations diameter is realized, operation is easier.
Description
Technical field
A kind of device for pressure measurement technical field is the utility model is related to, more particularly to a kind of cable accessory interfacial pressure
Measuring device.
Background technology
Cable accessory usually forms cylindrical shape by silicon rubber or EP rubbers parcel semiconductor, after axially extending bore interference expansion
Closely surround in cable major insulation, and keep certain interfacial pressure.The size and distribution situation of interfacial pressure directly influence
The electric property of cable connector, is a critical component of cable.When interfacial pressure is uneven, the electric field distribution of end is not
Uniformly, there is electric field concentration phenomenon, the small section of some interfacial pressures may be by electric field breakdown.The different formulations of elastomeric material
With batch, the thickness of non-coaxial position, the distribution space shape of semiconductor layer, the diametric fit to cable major insulation, operation
It is integrally excessive or too small that the factors such as the time length used can influence interfacial pressure, or local pressure is uneven, can increase electricity
The out of order risk of cable.Therefore, a kind of diverse location that can accurately measure cable accessory, different-diameter expansion interference volume are researched and developed
Interfacial pressure measuring device it is particularly significant, cable accessory to R ＆ D design new model, the detection of cable accessory check
Played an important role with accident analysis.
A kind of rubber stress cone interfacial pressure detection device of the disclosure of the invention of Application No. 201410462382.X, including
Metal tube, 2 end part seal plates and pressure test table, wherein, the metal tube is equipped with multiple apopores；The end part seal
Plate is installed on the metal tube both ends, wherein 1 end part seal plate is equipped with water injection pipe；The pressure test table is installed on described
At water injection pipe.Also disclose a kind of method of rubber stress cone interfacial pressure detection：Rubber stress cone is expanded into rear enclosure in metal
Guan Shang；End part seal plate is installed at metal tube both ends；By the water injection pipe of metal tube one end to metal tube internal water flooding；Work as water
When stream is flowed out by apopore along contact interface from rubber stress cone end, the pressure shown in pressure test table is read, so that
Obtain the interfacial pressure of rubber stress cone.Also there are following shortcoming for solving above-mentioned interfacial pressure measurement for the technology：1、
When current flow to end from the stage casing of cable accessory, apopore is limited to the section of a certain maximum interfacial pressure in end, measurement
Value is to characterize the maximum pressure value of certain axial direction part cable accessory, it is impossible to measures the interfacial pressure of certain specific axial point.For
The non-uniform annex of interfacial pressure, can only measure the maximum of interfacial pressure, can not accurately measure the axial direction of cable accessory not
With the interfacial pressure of position.2nd, when hydraulic pressure is just greater than interfacial pressure, current should from rubber along contact interface by apopore
Power tapered end portion is flowed out, and the distance flowed through runs into interfacial pressure region less than normal, can constantly fill up to tens to hundreds of millimeters
And expand the section of annex, whole section of maximum is reached until interfacial pressure can just reserve end, can lag one section longer when
Between, in hydraulic pressure continues elevated measurement process, reading the pressure shown in pressure test table will be more inclined than actual interfacial pressure
Greatly.
Utility model content
The utility model is in order to solve above-mentioned to measure cable accessory diverse location difference expansion diameter interface in the prior art
The problem of pressure measurement, there is provided a kind of cable accessory interfacial pressure measuring device, its technical solution are as follows：
A kind of cable accessory interfacial pressure measuring device, including a pressure-regulated fluid source, a pressure measurement is connected through a pipeline
Instrument, it is characterised in that：Further include a column measuring stick, when measurement is inserted into the through hole of cable accessory, built in an at least ascending pipe
In the column measuring stick, the one end of one end from the column measuring stick of the ascending pipe, which stretches out and connects the pressure, to be surveyed
Instrument is measured, the other end of the ascending pipe has a measured hole in the column measuring stick side, and the measured hole is surveyed in the column
There is annular groove encirclement in length bar side, and a discharge pipe is built in the column measuring stick, described in one end connection of the discharge pipe
Annular groove, the other end stretch out the end of the column measuring stick.In pressure-regulated fluid source, the Fluid pressure of output adjusts increasing from small to large
During, the pressure of fluid reaches cable accessory after the pressure at measured hole, as long as being further added by a slight pressure, fluid will
Annular groove is flowed to from measured hole, while promotes the flowing of discharge tube fluid, record pressure when detecting discharge tube fluid flowing
The reading of force measuring instrument just obtains interfacial pressure of the cable accessory at the measured hole.
The column measuring stick includes an at least cavity, the cavity the column measuring stick end perforate, it is described
Cavity is built-in the ascending pipe and the discharge pipe.
At least one ascending pipe built in the column measuring stick entity and at least one discharge pipe.
The medium in the pressure-regulated fluid source is water, oil or gas.
The column measuring stick is corresponding with the shape and size of the cable assembly of tested cable accessory nesting.
The column measuring stick is an overall fixed structure.
The column measuring stick is wrapped on an axle by one group of secter pat, an institute built at least one secter pat
Ascending pipe, a measured hole, an annular groove and a discharge pipe are stated, between the secter pat and the axle extremely
Include a taper contact surface less, column measuring stick can be adjusted by adjusting the secter pat and the axle relative axial position
Diameter.
The beneficial effects of the utility model are as follows：1st, the accuracy of lifting measurement, in the fluid pressure of pressure-regulated fluid source output
Power is adjusted in increasing process from small to large, when the pressure of fluid reaches pressure of the cable accessory at measured hole, as long as it is micro- to be further added by one
Small pressure, fluid will flow to annular groove from measured hole, be detected as long as one drop of liquid of outflow is easy for being observed, so that accurately
Record the interfacial pressure of cable accessory.2nd, accurately the pressure in measurement cable accessory arbitrary interface region, annular groove have drawn a circle to approve pressure
The scope of measurement, solves the distribution pressure of each point of the uneven situation of cable accessory interfacial pressure, for improving cable accessory
Structure design provide technical support.3rd, the measurement without differential consecutive variations diameter is realized, can be first with less than cable accessory
Through-hole diameter is inserted into, then is tuned up the diameter of column measuring stick and can be measured to the numerical value needed, is operated easier.The prior art
Need to make the analogue measurement rod of corresponding diameter for each specific cable major insulation diameter, cost of manufacture is high, and every
It could be inserted into after secondary expansion cable accessory through hole, it is complicated.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model device；
Fig. 2 is the utility model measured hole and annular groove schematic diagram；
Fig. 3 is the column measuring stick schematic diagram of the utility model embodiment one；
Fig. 4 is the column measuring stick schematic diagram of the utility model embodiment two；
Fig. 5 is that the secter pat of the column measuring stick of the utility model embodiment three and axle coordinate horizontal section signal
Figure；
Fig. 6 is that the secter pat of the column measuring stick of the utility model embodiment three and axle coordinate longitudinal profile signal
Figure；
Fig. 7 is that the secter pat of the column measuring stick of the utility model embodiment four and axle coordinate horizontal section signal
Figure；
Fig. 8 is that the secter pat of the column measuring stick of the utility model embodiment four and axle coordinate longitudinal profile signal
Figure；
Digital representation in figure：1st, pressure-regulated fluid source, 2, pipeline, 3, pressure-measuring device, 4, column measuring stick, 5, cable it is attached
Part, 6, ascending pipe, 7, measured hole, 8, annular groove, 9, discharge pipe, 10, cavity, 11, secter pat, 12, axle, 13, taper connects
Contacting surface.
Embodiment
In order to further illustrate the effect of technological means that the utility model taken and acquirement, below in conjunction with the accompanying drawings and
Preferred embodiment, carries out the technical solution of the utility model clear and complete description.
As shown in Figure 1, Fig. 1 is the structure diagram of the utility model device, a kind of cable accessory interfacial pressure measurement dress
Put, including pressure-regulated fluid source 1, pressure-measuring device 3 is connected through pipeline 2, the logical of cable accessory 5 is inserted into when column measuring stick 4 measures
In hole, ascending pipe 6 is built in column measuring stick 4, and the one end of one end from the column measuring stick 4 of ascending pipe 6 stretches out and connects pressure
Force measuring instrument 3, the other end of ascending pipe 6 have a measured hole 7 in 4 side of column measuring stick, and measured hole 7 is in 4 side of column measuring stick
Face has an annular groove 8 to surround, and a discharge pipe 9 is built in column measuring stick 4, one end connection annular groove 8 of discharge pipe 9, the other end
Stretch out the end of column measuring stick 4.Can be water, oil or gas in the fluid that pressure-regulated fluid source 1 exports, in this specific embodiment
In, select aqueous fluid.Pressure-regulated fluid source 1 can be connection high pressure tap water, slowly open the valve in pressure-regulated fluid source 1, water
Pressure is adjusted in increasing process from small to large, and the pressure of fluid reaches cable accessory 5 after the pressure at measured hole 7, as long as being further added by
One slight pressure, fluid will flow to annular groove 8 from measured hole 7, while promote the flowing of fluid in discharge pipe 9.The row of detecting
The reading that pressure-measuring device 3 is recorded when fluid flows in outlet pipe 9 just obtains interface pressure of the cable accessory 5 at the measured hole 7
Power.The method of fluid flowing can be whether the observation mouth of pipe bubbling or has water droplet outflow in detection discharge pipe 9.
As shown in Fig. 2, Fig. 2 is the utility model measured hole and annular groove schematic diagram, the circumferential direction of measured hole 7 has annular groove 8,
One end connection annular groove 8 of discharge pipe 9.This structure can ensure that fluid will necessarily flow to annular groove after the outflow of measured hole 7
8, the further flowing for promoting fluid in discharge pipe 9.Meanwhile this structure can ensure fluid after the outflow of measured hole 7 not
The scope of annular groove 8 can be exceeded, the measurement of other positions will not be interfered.So as to which the technical program can be realized to electricity
The distributed measurement at cable fittings interface.
As shown in figure 3, Fig. 3 is the column measuring stick schematic diagram of the utility model embodiment one.Column measuring stick 4 includes one
Cavity 10, cavity 10 are equipped with ascending pipe 6 and discharge pipe 9 in cavity 10 in the end perforate of column measuring stick 4.Column measuring stick 4
Wall thickness be more than annular groove 8 depth.6 one end of ascending pipe connects a measured hole 7.A diameter of fixation of every column measuring stick 4
Value, can be according to the needs of measurement, corresponding diameter customized.It can match somebody with somebody in column measuring stick 4 in longitudinally or circumferentially diverse location
Multiple measured holes 7, ascending pipe 6 and discharge pipe 9 are put, multiple and different positions can be measured when column measuring stick 4 is inserted into cable accessory
The interfacial pressure put.When there are more ascending pipes 6, pressure-measuring device 3 can be connected respectively with every ascending pipe 6, can also be every
In connection pressure-measuring device 3 after one switch of the connection of ascending pipe 6, in measurement, corresponding switch is opened.
As shown in figure 4, Fig. 4 is the column measuring stick schematic diagram of the utility model embodiment two.Column measuring stick 4 can be
3D printing is molded or mechanical processing shaping, and ascending pipe 6 and discharge pipe 9 are equipped with column measuring stick 4.Ascending pipe 6 one
One measured hole 7 of end connection.A diameter of fixed value of every column measuring stick 4, can be customized corresponding straight according to the needs of measurement
Footpath.Multiple measured hole 7, ascending pipe 6 and discharge pipes 9 can be configured in longitudinally or circumferentially diverse location in column measuring stick 4, can be with
The interfacial pressure of multiple and different positions is measured when column measuring stick 4 is inserted into cable accessory., can be with when there is more ascending pipes 6
Every ascending pipe 6 connects pressure-measuring device 3 respectively, can also connect pressure-measuring device after every one switch of the connection of ascending pipe 6
3, in measurement, open corresponding switch.
Coordinate laterally as shown in figure 5, Fig. 5 is the secter pat of the column measuring stick of the utility model embodiment three and axle
Diagrammatic cross-section.Coordinate as shown in fig. 6, Fig. 6 is the secter pat of the column measuring stick of the utility model embodiment three and axle
Longitudinal profile schematic diagram.Column measuring stick 4 is wrapped on an axle 12 by one group of 6 pieces of secter pat 11.The circle of secter pat 11
There are measured hole 7, annular groove 8 in all sides.Secter pat 11 includes a cavity 10, and cavity 10 is in the end perforate of secter pat 11, cavity
Ascending pipe 6 and discharge pipe 9 are housed in 10.Include 2 taper contact surfaces 13 between secter pat 11 and axle 12, adjust secter pat
11 can adjust the diameter of column measuring stick 4 with 12 relative axial position of axle., can be with every when there is more ascending pipes 6
Root ascending pipe 6 connects pressure-measuring device 3 respectively, can also connect pressure-measuring device 3 after every one switch of the connection of ascending pipe 6,
In measurement, corresponding switch is opened.
Coordinate laterally as shown in fig. 7, Fig. 7 is the secter pat of the column measuring stick of the utility model embodiment four and axle
Diagrammatic cross-section.Coordinate as shown in figure 8, Fig. 8 is the secter pat of the column measuring stick of the utility model embodiment four and axle
Longitudinal profile schematic diagram.Column measuring stick 4 is wrapped on an axle 12 by one group of 6 pieces of secter pat 11.The circle of secter pat 11
There are measured hole 7, annular groove 8 in all sides, and ascending pipe 6 connects measured hole 7, and discharge pipe 9 connects annular groove 8.Secter pat 11 and axle center
Include 2 taper contact surfaces 13 between rod 12, adjustment secter pat 11 can adjust column with 12 relative axial position of axle
The diameter of measuring stick 4.When there are more ascending pipes 6, pressure-measuring device 3 can be connected respectively with every ascending pipe 6, can also be every
In connection pressure-measuring device 3 after one switch of the connection of ascending pipe 6, in measurement, corresponding switch is opened.
Note that it above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, can carry out for a person skilled in the art various bright
Aobvious change, readjust and substitute without departing from the scope of protection of the utility model.Therefore, although passing through above example
The utility model is described in further detail, but the utility model is not limited only to above example, is not departing from
In the case that the utility model is conceived, other more equivalent embodiments can also be included, and the scope of the utility model is by appended
Right determine.
Claims (7)
1. a kind of cable accessory interfacial pressure measuring device, including a pressure-regulated fluid source, a pressure-measuring device is connected through a pipeline,
It is characterized in that：Further include a column measuring stick, when measurement is inserted into the through hole of cable accessory, and at least an ascending pipe is built in institute
Column measuring stick is stated, the one end of one end from the column measuring stick of the ascending pipe stretches out and connects the pressure measurement
Instrument, the other end of the ascending pipe have a measured hole in the column measuring stick side, and the measured hole is measured in the column
There is annular groove encirclement in rod side, and a discharge pipe is built in the column measuring stick, and one end of the discharge pipe connects the ring
Shape groove, the other end stretch out the end of the column measuring stick.
2. cable accessory interfacial pressure measuring device according to claim 1, it is characterised in that：The column measuring stick bag
Include an at least cavity, for the cavity in the end perforate of the column measuring stick, the cavity is built-in the ascending pipe and institute
State discharge pipe.
3. cable accessory interfacial pressure measuring device according to claim 1, it is characterised in that：The column measuring stick is real
Put at least one ascending pipe and at least one discharge pipe in vivo.
4. cable accessory interfacial pressure measuring device according to claim 1, it is characterised in that：The pressure-regulated fluid source
Medium is water, oil or gas.
5. cable accessory interfacial pressure measuring device according to any one of claims 1 to 4, it is characterised in that：The column
The corresponding shape of the measuring stick cable assembly nested with tested cable accessory and size.
6. cable accessory interfacial pressure measuring device according to claim 5, it is characterised in that：The column measuring stick is
One overall fixed structure.
7. cable accessory interfacial pressure measuring device according to claim 5, it is characterised in that：The column measuring stick by
One group of secter pat is wrapped on an axle, an ascending pipe, a measured hole, one built at least one secter pat
The annular groove and a discharge pipe, include at least a taper contact surface between the secter pat and the axle, adjustment
The secter pat can adjust the diameter of column measuring stick with the axle relative axial position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721460795.XU CN207335922U (en) | 2017-11-06 | 2017-11-06 | A kind of cable accessory interfacial pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721460795.XU CN207335922U (en) | 2017-11-06 | 2017-11-06 | A kind of cable accessory interfacial pressure measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN207335922U true CN207335922U (en) | 2018-05-08 |
Family
ID=62364294
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721460795.XU Active CN207335922U (en) | 2017-11-06 | 2017-11-06 | A kind of cable accessory interfacial pressure measuring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752119A (en) * | 2017-11-06 | 2019-05-14 | 深圳带路科技有限公司 | A kind of cable accessory interfacial pressure measuring device and method |
| KR102272086B1 (en) * | 2020-01-02 | 2021-07-02 | 대한전선 주식회사 | Apparatus of measuring pressure on heterogeneous interface and method thereof same |
-
2017
- 2017-11-06 CN CN201721460795.XU patent/CN207335922U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752119A (en) * | 2017-11-06 | 2019-05-14 | 深圳带路科技有限公司 | A kind of cable accessory interfacial pressure measuring device and method |
| KR102272086B1 (en) * | 2020-01-02 | 2021-07-02 | 대한전선 주식회사 | Apparatus of measuring pressure on heterogeneous interface and method thereof same |
| WO2021137515A1 (en) * | 2020-01-02 | 2021-07-08 | 대한전선 주식회사 | Interfacial pressure measurement device for heterogeneous structure and method thereof |
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