CN207248216U - End-cap assembly for industrial instrument and the industrial instrument including it - Google Patents
End-cap assembly for industrial instrument and the industrial instrument including it Download PDFInfo
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- CN207248216U CN207248216U CN201721124256.9U CN201721124256U CN207248216U CN 207248216 U CN207248216 U CN 207248216U CN 201721124256 U CN201721124256 U CN 201721124256U CN 207248216 U CN207248216 U CN 207248216U
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Abstract
It the utility model is related to industrial instrument.A kind of end-cap assembly for industrial instrument is provided according to the utility model, this end-cap assembly includes：End cap housing, end cap housing are configured to Cylinder shape constructional element to house the component parts of end-cap assembly；Form component, form component is made with engineering plastics, in end cap housing；Wherein, form component includes：Transparent plate portion；And deflection division, deflection division be configured to along the periphery of transparent plate portion from the side of transparent plate portion by tiltedly it is abducent in a manner of extend.Industrial instrument using above-mentioned end-cap assembly is additionally provided according to the utility model.End-cap assembly according to the present utility model has simplified structure, and disclosure satisfy that the requirement of non-explosion-proof industrial instrument.
Description
Technical field
It the utility model is related to industrial instrument, and in particular to the end-cap assembly on industrial instrument.
Background technology
The content of this part provide only with the relevant background information of the disclosure, it may not form the prior art.
Industrial instrument is a kind of common live industrial control equipment.Industrial instrument commonly used in power plant, chemical plant, oil plant,
The manufacturing enterprise of the process industries such as ocean platform, its use environment usually have the characteristics that pollution, burn into high/low temperature, high humidity.
In order under these circumstances reliably and securely long-term work, it is necessary to which the rdativery sensitive of industrial instrument, fragile electronic unit is close
It is enclosed in a firm housing to avoid the influence of Korrosionsmedium in external environment, moisture, dust etc. is subject to.Meanwhile have
Considerable industrial instrument is also operated under explosive gas or dust atmosphere.This requires industrial instrument to have specific explosion-proof type
Formula and explosion-proof performance, such as：Flame-proof type process instrument its housing wall thickness, bearing capacity, flame flash-back, bonding composition surface width etc.
It will meet the requirement of the standards such as IEC60079, FM3615.
End cap is a basic components on industrial instrument, in order to allow instrument operator easily to read industrial instrument
The indicating value of interior display, can set transparent window on end cap.
In order to improve the versatility of part and reduce the complexity of assembling process, way general at present is according to same
Design standard designs a kind of end cap, is applied to the instrument product of entire series.
The advantages of this design, is the versatility for improving part so that without considering the concrete application field of industrial instrument
Close, the end cap of same design standard is applied to the instrument of general work environment and for explosive gas or dust atmosphere
Instrument.Also, the industrial instrument that need not be directed to different application scenarios in assembling process calls different Cover members, from
And reduce the possibility of mistake installation and reduce the number of parts that needs are safeguarded.
However, this end cover designs there is also it is corresponding the shortcomings that.In order to meet the close of the industrial instrument of particular application
Envelope and requirement of explosion proof according to stringent standard (design standard for being suitable for explosion-proof occasion), it is necessary to design end cap, this can cause
The production technology that the design and producing cost of end cap is all higher and required is also more complicated.But these are according to strict standard
Just belonging to " excessive " design during industrial instrument designed for non-explosion-proof place --- " excessive " herein refers to product design
With performance far beyond actual demand so as to cause to waste.
It is, therefore, desirable to provide a kind of scheme solves the problems, such as above-mentioned surdimensionnement.
Utility model content
One purpose of the utility model is to provide a kind of end-cap assembly of industrial instrument, and it is suitable for non-explosion-proof place
Industrial instrument, have reduce production cost and simplification structure and production process.
Another purpose of the utility model is to provide a kind of end-cap assembly of industrial instrument, it is with good shock resistance
And sealing performance.
Another purpose of the utility model is to provide a kind of industrial instrument, its overall production cost reduces.
For one or more of above-mentioned purpose, one side according to the present utility model provides a kind of for industry
The end-cap assembly of instrument, this end-cap assembly include：End cap housing, end cap housing are configured to Cylinder shape constructional element to house end-cap assembly
Component parts；Form component, form component is made with engineering plastics, in end cap housing；Wherein, form component includes：
Transparent plate portion；And deflection division, deflection division are configured to extend out with oblique along the periphery of transparent plate portion from the side of transparent plate portion
The mode of exhibition extends.
Above-mentioned end-cap assembly has newly-designed form component, it is allowed to and reduce and be used to position the component with impact absorbing,
So as to simplify the structure of end-cap assembly, and newly-designed form component is enough to provide required shock resistance and impact is inhaled
Performance is received, disclosure satisfy that the requirement of non-explosion-proof industrial instrument.
Preferably, form component is made with makrolon.
Preferably, deflection division is configured to the multiple lugs formed on the periphery of transparent plate portion.
Preferably, lug is straight lug or bent tabs.
Preferably, lug is set around the whole girth of the periphery of transparent plate portion.
Preferably, lug is arranged in the section being spaced apart with equidistance of the periphery of transparent plate portion.
Preferably, lug has rectangular profile, trapezoidal profile or circular contour.
Preferably, the terminal edge of lug has oblique angle or fillet.
Preferably, end-cap assembly is additionally included in the inner seal rings of the transparent panel part side arrangement of form component, transparent plate portion
The opposite side opposite with side compress inner seal rings.
Preferably, inner seal rings have square or circular cross-section.
Preferably, the girth on the inner wall of end cap housing around end cap housing is formed with first shoulder, transparent plate portion it is another
Side abuts first shoulder.
Preferably, formed with the annular groove for housing inner seal rings in first shoulder.
Preferably, the girth on the inner wall of end cap housing around end cap housing is formed with second opposite with first shoulder
Shoulder, the deflection division of form component are arranged towards the second shoulder.
Preferably, the accommodating space for being used for housing form component, accommodating space are limited between first shoulder and the second shoulder
Including surrounding the inclination section of transparent plate portion and surrounding the straight section of deflection division.
Preferably, the deflection division side of form component is provided with sheet locating piece, and locating piece is arranged against the end of deflection division.
Preferably, locating piece is configured to the annular construction member with opening, and the outer rim of a free end of locating piece is formed with cutting
Mouthful.
Preferably, formed with the circular groove for accommodating exterior sealing ring, outside sealing on the periphery wall of end cap housing
Circle is used to provide the sealing between end-cap assembly and the body of industrial instrument.
Another aspect according to the present utility model provides a kind of industrial instrument, which includes meter body, peace
It is filled to the end-cap assembly according to above-mentioned aspect of meter body.
Preferably, industrial instrument is transmitter or flowmeter.
Brief description of the drawings
By description referring to the drawings, the feature and advantage of one or several embodiments of the utility model will become
Must be easier to understand, wherein：
Fig. 1 is the decomposition diagram of the end-cap assembly of the industrial instrument of existing design；
Fig. 2 is the schematic cross-section of the end-cap assembly of Fig. 1 in the assembled state；
Fig. 3 is the decomposition diagram according to the end-cap assembly of the utility model embodiment；
Fig. 4 is the schematic cross-section according to the end-cap assembly of the utility model embodiment in the assembled state；
Fig. 5 is the stereogram from front viewing according to the form component of the end-cap assembly of the utility model embodiment；
Fig. 6 is the stereogram watched from the back side according to the form component of the end-cap assembly of the utility model embodiment；
Fig. 7 is the top view according to the form component of the end-cap assembly of the utility model embodiment；
Fig. 8 is the schematic perspective view according to the inner seal rings of the end-cap assembly of the utility model embodiment；
Fig. 9 is the sectional view according to the inner seal rings of the end-cap assembly of the utility model embodiment；
Figure 10 is the schematic perspective view according to the locating piece of the end-cap assembly of the utility model embodiment；
Figure 11 is the schematic diagram according to the end cap housing of the end-cap assembly of the utility model embodiment；
Figure 12 is to show the state being installed on according to the form component of the utility model embodiment in end cap housing
Schematic diagram；
Figure 13 is to show to be installed on end cap housing according to the form component and locating piece of the utility model embodiment
In state schematic diagram；
Figure 14 is the stress shown according to the end-cap assembly of the utility model embodiment after installation is in place
Schematic diagram；
Figure 15 A to Figure 15 C are the pressure for showing the end-cap assembly according to the utility model embodiment and existing end cap
Leak-testing comparison diagram；
Figure 16 is the schematic perspective view according to the industrial instrument of the utility model embodiment；And
Figure 17 is according to the side view of the industrial instrument of the utility model embodiment, wherein being shown in a manner of biopsy cavity marker devices
The internal structure of end-cap assembly is gone out.
Embodiment
Description related to the preferred embodiment is only exemplary below, and be definitely not to the utility model and its application or
The limitation of usage.In various figures the same reference numerals are used to designate identical component, therefore the construction of same parts
It will not be repeated again.
A kind of current existing end-cap assembly for industrial instrument is illustrated with reference first to Fig. 1 and Fig. 2, to make
For the control of the end-cap assembly according to the utility model embodiment, more clearly embody according to the utility model embodiment
The improvements of end-cap assembly.
The exploded perspective of Fig. 1 shows a kind of all parts of existing end-cap assembly 100 '.This end-cap assembly 100 '
Including end cap housing 110 ', inner seal rings 120 ', glass vision panel 130 ', embedding part 140 ', ripple spring 150 ', locating ring
160 ' and exterior sealing ring 170 '.The section of Fig. 2 shows the state diagram after above-mentioned all parts assembling.Need to illustrate herein
, embedding part 140 ' is that casting glue solidifies the component to be formed after embedding is completed, rather than the workpiece being pre-machined.Embedding part
140 ' primarily serve sealing and the effect of flame proof in end-cap assembly 100 '.Usually, in inner seal rings 120 ' and glass
Fluid sealant is irrigated to form embedding part 140 ' in the accommodating space of the installation of form 130 ' backward glass vision panel 130 ' in place.Embedding part
140 ' while also aid in the positioning to glass vision panel 130 '.For the end-cap assembly 100 ' of diagram, glass vision panel 130 '
It is final to be located through the realization of locating ring 160 '.Ripple spring 150 ' in end-cap assembly 100 ' be used for pressed glass form 130 ' from
And promote sealing, and due also to the deformability of itself and be used as impact-absorbing element, so as to improve end-cap assembly 100 '
Shock resistance.
Fig. 1 and end-cap assembly 100 ' shown in Figure 2 employ typical Explosion-proof Design.Except fluid sealant to be irrigated it
Outside, glass vision panel 130 ' needs enough thickness and intensity, and glass is supported for example with the tempering soda-lime glass of about 10mm thickness
Glass form 130 ', to meet the requirement of 4 joules of impact energys of tolerance of explosion-proof criteria (such as I EC60079) defined.Also,
The operating procedure of perfusion fluid sealant (for example, polyurethane pouring sealant) has strict demand, for the glass vision panel 130 ' of about 10mm thickness,
The composition surface width of embedding part 140 ' is greater than 10mm after embedding, to meet the viscous of explosion-proof criteria (such as I EC60079) defined
Connect composition surface width and ageing-resistant requirement.
End-cap assembly based on above-mentioned design can fully meet the application requirement of explosion-proof industrial instrument, however, for
The industrial instrument of non-explosion-proof applications, above-mentioned design then belong to " excessive " design.Such design can undoubtedly increase non-anti-
The manufacture cost of quick-fried instrument.
For this reason, present inventor considers to be improved the structure of the end-cap assembly 100 ' of this " general-purpose type ", with
Reduce the cost for the industrial instrument that non-explosion-proof occasion uses.
Below with regard to the make with reference to Fig. 3 to Figure 17 to the improved end-cap assembly according to the utility model embodiment
Illustrate.
Fig. 3 and Fig. 4 is shown to be shown according to the overall structure of the end-cap assembly 100 of one preferred embodiment of the utility model
It is intended to.This end-cap assembly 100 includes end cap housing 110, the form component 130 in end cap housing 110, is arranged on form
The sealing ring 120 of 130 side of component, be arranged on form component 130 another opposite side locating piece 140.By with showing in Fig. 1
The view contrast of the existing end-cap assembly 100 ' gone out according to the end-cap assembly 100 of the disclosure as can be seen that employ new design
Form component 130, and eliminate embedding part 140 ' and ripple spring 150 '.Therefore, according to the end-cap assembly 100 of the disclosure
Structure more simplify.
As shown in Figure 3, end cap housing 110 is configured to Cylinder shape constructional element, its to house end-cap assembly 100 constituting portion
Part.Here, term " tubular " shows that end cap housing 110 has open end, it generally can be structured as cylinder.Certainly, according to
The concrete structure of product, end cap housing 110 can also have the section of other forms, rectangle such as oval, with rounded corners.
Form component 130 is installed in end cap housing 110 in nested fashion, as shown in Figure 4.Different from the prior art
In glass vision panel 130 ', be made according to the form component 130 of the disclosure with engineering plastics.For glass, engineering plastic
The high mechanical strength of material, heat resistance, impact resistance are good, can be used for a long time in harsher chemistry, physical environment.Cause
This, engineering plastics are capable of providing shock resistance and enough transparencies needed for form component 130.It is also, same providing
In the case of shock resistance, there can be the thickness of smaller according to the form component 130 of the disclosure.The side of being preferable to carry out
In formula, form component 130 is made with makrolon (PC).In current engineering plastics, makrolon has optimal anti-impact
Hit performance, it is sufficient to meet the shock resistance requirement for the industrial instrument that general work occasion uses, and translucency, impact resistance,
There is good balance between toughness and heat resistance.In addition to makrolon, institute can also be capable of providing using any other
The shock resistance and the material of transparency needed, such as acrylonitrile-butadiene-styrene copolymer (ABS) or polypropylene
(PP)。
Specifically, the structure different from existing glass vision panel 130 ' is employed according to the form component 130 of the disclosure.Depending on
Window member 130 includes transparent plate portion 131 and deflection division 132.Preferably, transparent plate portion 131 and deflection division 132 can be with a bodily forms
Into.The shape of transparent plate portion 131 depends on the configuration of end-cap assembly 100, it needs the shape for matching end cap housing 110.In Fig. 5
The transparent plate portion 131 shown has circular shape, to coordinate the cylindrical configuration of end cap housing 110.Deflection division 132 is configured to edge
The periphery of transparent plate portion 131 from the side of transparent plate portion 131 in a manner of tiltedly abducent to extend.According to the utility model
Embodiment in, deflection division 132 can provide elastic deformation when being pressurized or being hit, so that absorption pressure or impact.Scratch
The elastic deformability of pars convoluta 132 additionally aids positioning of the form component 130 in end cap housing 110, even if not having casting glue
Maintenance effect, also firmly form component 130 can be positioned in end cap housing 110.In addition, the elasticity change of deflection division 132
Shape performance can also compensate its own scale error in axial direction, thus can also bring the reduction of processing cost.
According to the form component 130 of the disclosure employ impact resistance and transparency it is excellent engineering plastics it is existing to substitute
Glass material, while impact resistance is improved also allow reduce form component 130 (specifically, transparent plate portion 131) thickness
Degree.
Deflection division 132 provides the effect of the ripple spring 150 ' used in existing end-cap assembly 100 ', there is provided impact
With pressure absorbability, and contribute to the positioning of form component 130.Thus, present disclose provides non-anti- with being enough to be adapted to
The end-cap assembly 100 of quick-fried applications, and eliminate embedding part 140 ' and deformation element in existing end-cap assembly 100 '
(e.g., ripple spring 150 '), simplifies the structure of end-cap assembly 100.
The section of the end-cap assembly 100 of Fig. 4 shows the installment state of form component 130.As shown in figure 4, form structure
That side (side opposite with that side that transparent plate portion 131 is extended with deflection division 132) of the transparent plate portion 131 of part 130 is arranged
There are inner seal rings 120, under the assembled state of end-cap assembly 100, transparent plate portion 131 compresses inner seal rings 120.It is internal close
Seal 120 provides increased sealing performance for end-cap assembly 100, and since its morphotropism also provides the impact absorbency of auxiliary
Energy.
And then supporting shoulder (first shoulder) 112 is provided with the inner wall of end cap housing 110, such as institute in Fig. 4 and Figure 11
Show, supporting shoulder 112 is formed around the girth of end cap housing 110.In the assembled state, transparent plate portion 131 compress it is internal close
That side of seal 120 abuts supporting shoulder 112, to be held in place in end cap housing 110.
Especially, support on shoulder 112 formed with the annular groove 114 for housing inner seal rings 120.From Fig. 4
As it can be seen that the size of annular groove 114 along the radial direction of end cap housing 110 is more than the size of inner seal rings 120, to allow
When being pressurized necessary deformation can occur for inner seal rings 120.
Further, the stop shoulder positioned opposite with supporting shoulder 112 is additionally provided with the inner wall of end cap housing 110
(the second shoulder) 113, as shown in Figure 4, stop shoulder 113 are also formed around the girth of end cap housing 110.In assembled state
Under, the deflection division 132 of form component 130 is arranged towards stop shoulder 113.Deflection division 132 can directly abut stop shoulder 113
It is firmly installed with realizing, or can sets extra determine as previously described, between deflection division 132 and stop shoulder 113
Position part, than ring shaped retainer member 140 as shown in Figure 4.Extra locating piece 140 is set to allow to reduce stop shoulder 113 along end
The size of 110 radial direction of lid housing, and the backstop area of bigger can be provided.
Generally, form component 130 is installed on the accommodating space 111 limited between supporting shoulder 112 and stop shoulder 113
Interior, inner seal rings 120 and locating piece 140 are arranged on 130 both sides of form component.Figure 11 shows the inside of end cap housing 110
Accommodating space 111, Figure 12 show the state that form component 130 is installed in accommodating space 111, and Figure 13 shows locating piece
The deflection division 132 of 140 abutting form components 130 installs state in place.
Especially, as shown in Figure 4, in order to adapt to the overall configuration expanded slightly outwards of form component 130, sky is housed
Between 111 be configured to include to tilt section 111a and straight section 111b.In the assembled state, section 111a is tilted substantially surrounded by saturating
Isotropic disk portion 131 and a part for deflection division 132, straight section 111b surround the remainder of deflection division 132.
Preferably, the inner seal rings 120 used in the end-cap assembly 100 according to the disclosure have square-section.Fig. 8
The stereogram and sectional view of the inner seal rings 120 of square-section are respectively illustrated with Fig. 9.With for example justifying for same radial size
The sealing ring of tee section is compared, the compression bigger that square-section sealing ring produces under same decrement and distribution it is more equal
It is even, better seal effect can be provided.Also, especially, square-section sealing ring is more suitable for low temperature environment.At low temperature
The decrement of sealing ring is smaller than under room temperature, therefore the sealing provided is not as good as the sealing provided under room temperature.Square-section sealing ring by
It is relatively large in its available sealing area, there is static seal more more preferable than o-ring under same decrement
Effect, therefore comparatively speaking, the square seal ring of equal sectional dimension is more suitable for low temperature environment.Certainly, conventional circle
The sealing ring in section may be equally applicable for end-cap assembly 100 according to the present utility model, it can also provide required sealing
Performance.
Especially, sheet form is had according to the locating piece 140 used in the end-cap assembly 100 of the disclosure.Figure 10 is shown
The example of used ring shaped retainer member 140.It can be seen that locating piece 140 essentially forms whole annulus, only have and permit
Perhaps thus the opening 141 of its tightening and expansion, annular locating piece 140 have two free ends 142a and 142b.Also, especially
Ground, the outer rim of free end 142a are easy in end cap housing 110 formed with notch 142c, the effect of this notch 142c
Locating piece 140 pull down, this is realized by prizing locating piece 140 at notch 142c.Can from the installment state figure of Figure 13
To see, after installation is in place, the part and notch 142c of locating piece 140 are in outside stop shoulder 113, this is also helped
Pulled down in by locating piece 140.In addition it is also possible to split type locating piece is considered, for example, the ring shaped retainer member 140 in Figure 10 can
To be made of several separated arc sub-portion sections, the locating piece of this separate form is also included within the scope of the present invention.
Continue with the construction side to the form component 130 according to the utility model embodiment with reference to Fig. 5, Fig. 6 and Fig. 7
Formula illustrates.
Fig. 5 to Fig. 7 shows an instantiation of the form component 130 according to the disclosure.As shown in FIG., form structure
Part 130 has circular transparent plate portion 131, and deflection division 132 is configured to be formed on the periphery of transparent plate portion 131 multiple convex
Piece, and these lugs are formed with being uniformly spaced apart on the whole periphery of transparent plate portion 131.Especially, construction is shown in figure
For the deflection division 132 of straight lug form.The deflection division 132 of straight lug form has substantially rectangular profile, and terminal edge
Formed with oblique angle 132a.The purpose for setting oblique angle 132a is to provide softer edge, to avoid workpiece or scuffing is scraped
Operating personnel.Certainly, the oblique angle 132a shown in Fig. 5 can also be substituted with fillet.In addition to rectangular profile, lug can be with
With trapezoidal profile or arc-shaped profile (size tapers into since the periphery of transparent plate portion 131), this can be according to production
The actual design requirements of product selects.Trapezoidal and arc-shaped profile lug helps to improve the structural strength of deflection division 132.This
Outside, in a not shown embodiment, deflection division 132 can also be formed as the form of bent tabs, and the bending shape of lug is permitted
Perhaps deflection division 132 is more easily bent when being pressurized, and helps to guide the direction of deflection deformation.It is new according to this practicality
The principle of type, the shape of deflection division 132 can influence its equivalent elastic coefficient.Relative to straight lug, the flexure of bent tabs form
Portion 132 can be easy to improve the equivalent elastic coefficient of deflection division 132.
In the example shown in Fig. 5 to Fig. 7, the deflection division 132 of lug form is set around the whole periphery of transparent plate portion 131
Put.Alternatively, in the other embodiment according to the utility model principle, lug can be provided only on transparent plate portion 131
On partial circumferential.For example, lug can be arranged on the multiple sections being spaced apart with equidistance on the periphery of transparent plate portion 131
In.For example lug can be formed in three sections corresponding with 60 ° of sector separated with 60 ° of radian.By adjusting convex
The distribution mode of piece can also adjust the equivalent elastic coefficient of deflection division 132.
The deflection division 132 that lug form is respectively illustrated in Fig. 5, Fig. 6 and Fig. 7 has thickness t, height h and width w.Scratch
Thickness t, height h and the width w of pars convoluta 132 can be according to actual product sizes and required equivalent elastic coefficient come that
This is selected in phase.Substantially, the flexural property of deflection division 132 can be with the reduction of thickness t and/or the increasing of aspect ratio (h/w)
Improve greatly.
In addition, in the embodiment being arranged in deflection division 132 on the partial sector of the periphery of transparent plate portion 131, each
Monoblock type can be formed as by separating the deflection division 132 of section, for example, the bar shaped lug circumferentially extended in this section.
In this case, deflection division 132 needs to have less thickness to provide required flexibility.
Referring back to Fig. 4, the other parts of the end cap housing 110 according to the utility model embodiment are illustrated.
The outside of end cap housing 110 has junction surface 115 and stop flange 116, and junction surface 115 is arranged on being used for for end cap housing 110
The at one end engaged with the body 200 (being shown in Figure 16) of industrial instrument 10, forms on junction surface 115 as can see from Figure 4
There is external screw thread 115a, so that the body 200 threadably with industrial instrument 10 engages.Relative to junction surface 115, stop
Dynamic flange 116 is provided closer at the position of form component 130, this stop flange 116 provides end cap housing 110 in industrial instrument
The instruction being installed in place in the body 200 of table 10, the end cap housing 110 for preventing from being installed in place are further extended into body 200.
Further, formed with for the circular recessed of accommodating exterior sealing ring 150 between junction surface 115 and stop flange 116
Groove 117, as shown in Figure 4.After end-cap assembly 100 completely body 200 of the installation to industrial instrument 10, this exterior sealing ring
150 are interposed between the outer wall of end cap housing 100 and the inner wall at the corresponding junction surface of body 200, so as to provide end-cap assembly 100
With the sealing between body 200.
Pressure-bearing, shock resistance and pressure referring to Figure 14, Figure 15 A to Figure 15 C to the end-cap assembly 100 according to the disclosure
Leaking performance illustrates.
The deflection deformation of Figure 14 is shown when being subject to axial compressive force according to the end-cap assembly 100 of disclosure form component 130.
As shown in FIG., when form component 130 is subject to the axial pressing force F inside end-cap assembly 100, deflection division 132 is along arrow P
Direction be deflected outward occur deflection deformation, to bear and absorb this axial pressing force.The transparent plate portion 131 of form component 130
Compression can also occur for the inner seal rings 120 of side, there is provided the pressure absorption of auxiliary.Also, using 0.5kg steel
Ball, 1m height impact experiment in, shown according to the end-cap assembly 100 of the disclosure suitable with existing end-cap assembly 100 '
Shock resistance.
Figure 15 A to Figure 15 C show the end-cap assembly 100 and existing end cap group according to the utility model embodiment
The comparison diagram of the pressure leakage test of part, wherein Figure 15 A to Figure 15 C represent 20 pounds/square inch, 50 pound/square English respectively
Leak-testing under very little, 100 pounds/square inch of pressure.In figure, curve S1 represents the existing end-cap assembly using solid cover
Pressure leakage curve, curve S2 represent the existing end-cap assembly 100 ' using glass vision panel pressure leakage curve, curve
S3 represents the pressure leakage curve of the end-cap assembly 100 of the inner seal rings using square-section according to the disclosure, curve S4
Represent the pressure leakage curve of the end-cap assembly 100 using o-ring according to the disclosure.
It can be seen from the figure that within the testing time of two minutes, the pressure of the lower four kinds of end-cap assemblies of three kinds of pressure conditions
Leakage difference very little, the difference of slip are held in the range of 0.03 pound/square inch.Also, in Figure 15 A and Figure 15 C
Curve map in, adopted according to the slip of the end-cap assembly 100 using square-section inner seal rings of the disclosure with existing
Slip with the embedding end-cap assembly 100 ' of glass vision panel is suitable.
It is possible thereby to show to be had according to the end-cap assembly 100 of the utility model embodiment suitable with existing end-cap assembly
Pressure-bearing property, impact resistance and leakproofness.
Substantially, the advantages of following, has been capable of providing according to the end-cap assembly 100 for industrial instrument of the disclosure：
1. required number of parts is reduced by using newly-designed form component 130, so as to simplify end cap group
The structure of part 100, the weight for reducing assembly complexity and alleviating end-cap assembly 100；
2. it can be conveniently adjusted and scratch by adjusting the shape, size, distribution mode of the deflection division 132 of form component 130
The equivalent elastic coefficient of pars convoluta 132, so as to provide required shock absorbing capability；And the pre- of form component 130 can be adjusted
The pre compressed magnitude of clamp force and inner seal rings 120, so as to provide desired sealing effect.
3. make form component 130 due to substituting existing glass material using engineering plastics, and it is thus achieved that
The reduction of number of parts, so as to reduce the manufacture cost of end-cap assembly 100.
In addition, principle according to the present utility model, additionally provides the industrial instrument 10 for employing above-mentioned end-cap assembly 100.
Figure 16 shows an exemplary plot of industrial instrument 10, and Figure 17 shows the side view of the industrial instrument 10 of Figure 16, wherein end cap
The part of component 100 is shown with section view state.It can be seen that industrial instrument 10 includes body 200, installation to body 200
End-cap assembly 100 and the pedestal 300 for being used to support body 200.In nonrestrictive example, industrial instrument 10 can be
Transmitter or flowmeter.It should be understood that it can be adapted for according to the end-cap assembly 100 of the disclosure any including being regarded with transparent
The industrial instrument of the end-cap assembly of window.
Although the various embodiments of the utility model are described in detail herein, it should be appreciated that the utility model is simultaneously
The embodiment be described in detail and shown here is not limited to, in the situation of the spirit and scope without departing from the utility model
Under may be effected by one skilled in the art other modifications and variation.All these modifications and variation both fall within the utility model
In the range of.Moreover, all components described here can be replaced by component equivalent in other technologies.
Claims (19)
1. a kind of end-cap assembly for industrial instrument, it is characterised in that the end-cap assembly (100) includes：
End cap housing (110), the end cap housing are configured to Cylinder shape constructional element to house the component parts of the end-cap assembly；
Form component (130), the form component is made with engineering plastics, in the end cap housing；
Wherein, the form component (130) includes：
Transparent plate portion (131)；And
Deflection division (132), the deflection division are configured to along the periphery of the transparent plate portion (131) from the one of the transparent plate portion
Side by tiltedly it is abducent in a manner of extend.
2. end-cap assembly according to claim 1, it is characterised in that the form component (130) is made with makrolon.
3. end-cap assembly according to claim 1, it is characterised in that the deflection division (132) is configured to described transparent
The multiple lugs formed on the periphery of plate portion (131).
4. end-cap assembly according to claim 3, it is characterised in that the lug is straight lug or bent tabs.
5. end-cap assembly according to claim 3, it is characterised in that the lug is around the transparent plate portion (131)
The whole girth of the periphery is set.
6. end-cap assembly according to claim 3, it is characterised in that the lug is arranged on the transparent plate portion (131)
The periphery the section being spaced apart with equidistance on.
7. the end-cap assembly according to any one of claim 3 to 6, it is characterised in that the lug has rectangle wheel
Wide, trapezoidal profile or circular contour.
8. end-cap assembly according to claim 7, it is characterised in that the terminal edge of the lug has oblique angle or circle
Angle.
9. end-cap assembly according to any one of claim 1 to 6, it is characterised in that be additionally included in the form component
(130) inner seal rings (120) of transparent plate portion (131) the side arrangement, the transparent plate portion (131) with the side
Opposite opposite side compresses the inner seal rings (120).
10. end-cap assembly according to claim 9, it is characterised in that the inner seal rings (120) have square or circle
Tee section.
11. end-cap assembly according to claim 9, it is characterised in that around institute on the inner wall of the end cap housing (110)
The girth for stating end cap housing (110) abuts institute formed with first shoulder (112), the opposite side of the transparent plate portion (131)
State first shoulder (112).
12. end-cap assembly according to claim 11, it is characterised in that on the first shoulder (112) formed with for
House the annular groove (114) of the inner seal rings.
13. end-cap assembly according to claim 11, it is characterised in that surround on the inner wall of the end cap housing (110)
The girth of the end cap housing (110) is formed with second shoulder (113) opposite with the first shoulder (112), the form
The deflection division (132) of component (130) is arranged towards second shoulder.
14. end-cap assembly according to claim 13, it is characterised in that the first shoulder (112) and described second
The accommodating space (111) for being used for housing the form component (130) is limited between shoulder (113), the accommodating space (111) includes
Surround the inclination section (111a) of the transparent plate portion (131) and surround the straight section (111b) of the deflection division (132).
15. end-cap assembly according to any one of claim 1 to 6, it is characterised in that the form component (130)
Deflection division (132) side is provided with sheet locating piece (140), end of the locating piece (140) against the deflection division (132)
End arrangement.
16. end-cap assembly according to claim 15, it is characterised in that the locating piece (140) is configured to opening
Annular construction member, the outer rim of a free end (142a) of the locating piece is formed with notch (142c).
17. end-cap assembly according to any one of claim 1 to 6, it is characterised in that the end cap housing (110)
It is used on periphery wall formed with the circular groove (117) for accommodating exterior sealing ring (150), the exterior sealing ring (150)
Sealing between the end-cap assembly (100) and the body (200) of the industrial instrument (10) is provided.
18. a kind of industrial instrument (10), it is characterised in that the industrial instrument (10) includes meter body (200), installation to institute
State the end-cap assembly (100) according to any one of claim 1 to 17 of meter body (200).
19. industrial instrument (10) according to claim 18, it is characterised in that the industrial instrument (10) for transmitter or
Flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721124256.9U CN207248216U (en) | 2017-09-04 | 2017-09-04 | End-cap assembly for industrial instrument and the industrial instrument including it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721124256.9U CN207248216U (en) | 2017-09-04 | 2017-09-04 | End-cap assembly for industrial instrument and the industrial instrument including it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207248216U true CN207248216U (en) | 2018-04-17 |
Family
ID=61885019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721124256.9U Active CN207248216U (en) | 2017-09-04 | 2017-09-04 | End-cap assembly for industrial instrument and the industrial instrument including it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207248216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022108191A1 (en) | 2022-04-05 | 2023-10-05 | Vega Grieshaber Kg | Housing cover with viewing window |
-
2017
- 2017-09-04 CN CN201721124256.9U patent/CN207248216U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022108191A1 (en) | 2022-04-05 | 2023-10-05 | Vega Grieshaber Kg | Housing cover with viewing window |
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