CN206431343U

CN206431343U - A kind of NA interface types visor

Info

Publication number: CN206431343U
Application number: CN201621431685.6U
Authority: CN
Inventors: 陈庭清; 张陟; 韩小亮; 梁建恒
Original assignee: SHANGHAI AUSTAR PHARMACEUTICAL TECHNOLOGY EQUIPMENT Co Ltd
Current assignee: SHANGHAI AUSTAR PHARMACEUTICAL TECHNOLOGY EQUIPMENT Co Ltd
Priority date: 2016-12-23
Filing date: 2016-12-23
Publication date: 2017-08-22
Anticipated expiration: 2026-12-23

Abstract

The utility model discloses a kind of NA interface types visor, it includes visor base, endoscopy glass, glass gland and visor gland, wherein glass gland is a drum type brake annular element, the glass gland withholds section and the outwardly directed seal section of a lower edge including what a upper limb inwardly stretched out, the glass gland is covered on the endoscopy glass by the section of withholding, and the seal section is fitted with the seal washer；The visor gland is a disc type annular element, and the visor gland includes the changeover portion that an inner edge is extended downwardly from, and the visor gland is covered on the visor base, and the changeover portion is brought into close contact with the seal section, realizes the fixation to the glass gland.The utility model realizes the advantage at original NA interface types visor no visual dead angle without sintered glass, and facilitate on-line cleaning, built-in seal washer sanitation performance preferably, greatly reduces visor manufacture and equipment investment cost, with wide economic benefit and application prospect.

Description

A kind of NA interface types visor

Technical field

The utility model is related to a kind of NA interface types visor.

Background technology

In pharmacy, food and personal care articles industry, it is often necessary to set viewing window to be used to observe inside on batch tank The state of material, now for, the principal mode of visor has flange join type, and screw thread is by Ren Shi and NA interface types, wherein flange Interconnection system uses relatively broad, but because it is seal with flat gasket, there is certain corner or spot as yet untouched by a clean-up campaign, and volume is larger, it is difficult to transport The equipment minimized for pharmaceutical factory.Screw thread is also excellent due to being seal with O ring by appointing the characteristics of visor has compact conformation In flange form visor, but because the design feature of itself is, it is necessary to which larger height is better installed, this also results in its H/D value (wherein, H values represent the overhanging height of ozzle, and D values represent the internal diameter size of ozzle, and H/D values are generally used for weighing dead angle size) It is bigger than normal, cause certain difficulty to cleaning.

The external specification of present main flow all recommends sintered glass NA interface type visors, and NA interfaces are a kind of sanitary vessels Upper conventional ozzle interface pattern, it is exported is substantially flush no dead angle, existing sintered glass NA interface types with inner surface of container The gland and glass sintering of visor, have ideally evaded the shortcoming of both the above structure visor, but it will to glass sintering technique Manufacturing cost of summing is higher, now basic dependence on import.

Utility model content

To be solved in the utility model is that tank body visor commonly used in the prior art has a visual dead angle, and sintered glass There is provided a kind of NA interface types visor for the problem of glass sintering process costs are higher in NA interface type visor manufacturing processes.

The utility model solves above-mentioned technical problem by following technical proposals：

The utility model provides a kind of NA interface types visor, and it includes visor base, endoscopy glass, glass gland and regarded Mirror gland, the endoscopy glass is in the mirror mouth of the visor base, between the endoscopy glass and the visor base Provided with a seal washer；The glass gland is a drum type brake annular element, and the glass gland includes what a upper limb inwardly stretched out Section and the outwardly directed seal section of a lower edge are withheld, the glass gland covers at the endoscopy glass by the section of withholding On, the seal section is fitted with the seal washer；The visor gland is a disc type annular element, and the visor gland includes The changeover portion that one inner edge is extended downwardly from, the visor gland is covered on the visor base, the changeover portion and the sealing Section is brought into close contact, and realizes the fixation to the glass gland；Spiral shell is accordingly provided with the visor base and the visor gland Hole, is bolted connection between the visor base and the visor gland.

In the utility model, the visor base is preferably flange base, and the cross section of the visor base is preferably For spill.

In the utility model, the mirror mouth is preferably located at the center of the visor base, the diameter of the mirror mouth Preferably constantly increase from top to bottom is until equal with the base diameter of the visor base.

In the utility model, the seal washer is seal washer commonly used in the art, generally standard TC sealings Circle, preferably clip sealing ring, the clip sealing ring meets ASME BPE standards commonly used in the art, with guarantee with The inward flange of pipeline ensures concordant without dead angle.

In the utility model, the diameter of the seal washer is preferably greater than the endoscopy glass, to ensure the visor The installation bit width of seal washer described in base.

In the utility model, the material of the endoscopy glass is preferably tempering Pyrex, is gone out with ensureing that tolerance is conventional Bacterium temperature.

In the utility model, the upper limb of the seal section is preferably an inclined-plane, the lower edge of the seal section with it is described close Seal washer is preferably accordingly provided with groove.

In the utility model, the changeover portion preferably is provided with an inclined-plane corresponding to the seal section, with the sealing Section is brought into close contact.

In the utility model, the without individual tolerance value for withholding the flatness of contact portion between section and the endoscopy glass Grade is preferably H grades or more, is defined by chinese national standard GB/T1184-1996 requirement.

In the utility model, the without individual tolerance value grade of the axiality between the glass gland and the endoscopy glass compared with It is goodly H grades or more, is defined by chinese national standard GB/T1184-1996 requirement.

On the basis of common sense in the field is met, above-mentioned each optimum condition can be combined, produce the utility model it is each compared with Good example.

Positive effect of the present utility model is：The utility model passes through NA interface types flange and endoscopy glass and glass The combination of glass gland, solves the shortcomings of traditional visor, realizes that original NA interface types visor is ignored without sintered glass Feel the advantage at dead angle, and facilitate on-line cleaning, built-in seal washer also has more preferable health than conventional flat shim and O-ring Performance, greatly reduces visor manufacture and equipment investment cost, with wide economic benefit and application prospect.

Brief description of the drawings

Fig. 1 is the cross-sectional view of the utility model preferred embodiment.

Fig. 2 surveys assembling structure schematic diagram for the axle of the utility model preferred embodiment.

Fig. 3 is the cross-sectional view of the utility model preferred embodiment glass gland.

Embodiment

The utility model is further illustrated below by the mode of embodiment, but is not therefore limited in the utility model Among described scope of embodiments.

As shown in Figures 1 to 3, a kind of NA interface types visor is present embodiments provided, it includes visor base 101, sealing gasket Circle 102, endoscopy glass 103, glass gland 104, visor gland 105, stud 106 and acorn nut 107；The endoscopy glass 103 are located at the center of the visor base 101, and a sealing gasket is provided between the endoscopy glass 103 and the visor base 101 Circle 102；The glass gland 104 is an annular element, and the glass gland 104 withholds section and one including what a upper limb inwardly stretched out The outwardly directed seal section of lower edge, the glass gland 104 is covered on the endoscopy glass 103 by the section of withholding, institute Seal section is stated to fit with the seal washer 102；The visor gland 105 is an annular element, and the visor gland 105 includes one The changeover portion extended downwardly from, the visor gland 105 is covered on the visor base 101 and the glass gland 104, and is led to Cross the changeover portion and realize close patch between the visor base 101, the visor gland 105 and the glass gland 104 Close；Screw, the visor base 101 and the visor are accordingly provided with the visor base 101 and the visor gland 105 It is fastenedly connected between gland 105 by stud 106 and acorn nut 107；

Wherein, the visor base 101 is the conventional NA flange form bases in this area, and the seal washer 102 is to meet The clip sealing ring of ASME BPE standards, the material of the endoscopy glass 103 is tempering Pyrex, the lower edge of the seal section Groove, the plane for withholding contact portion between section and the endoscopy glass 103 are accordingly provided with the seal washer 102 The without individual tolerance value grade of degree is H grades or more, the axiality between the glass gland 104 and the endoscopy glass 103 Without individual tolerance value grade is H grades or more, and the requirement by chinese national standard GB/T1184-1996 is defined.

In description of the present utility model, it is to be understood that term " on ", " under ", "front", "rear", "left", "right", The orientation or position relationship of the instruction such as " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on orientation shown in the drawings or Position relationship, is for only for ease of description the utility model and simplifies description, rather than indicate or imply the device or member of meaning Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.

Although the foregoing describing embodiment of the present utility model, it will be appreciated by those of skill in the art that These are merely illustrative of, and protection domain of the present utility model is defined by the appended claims.Those skilled in the art Member can make numerous variations or repair to these embodiments on the premise of without departing substantially from principle of the present utility model and essence Change, but these changes and modification each fall within protection domain of the present utility model.

Claims

1. a kind of NA interface types visor, it is characterised in that it includes visor base, endoscopy glass, glass gland and visor gland, The endoscopy glass is close provided with one between the endoscopy glass and the visor base in the mirror mouth of the visor base Seal washer；The glass gland be a drum type brake annular element, the glass gland include a upper limb inwardly stretch out withhold section and The outwardly directed seal section of one lower edge, the glass gland is covered on the endoscopy glass by the section of withholding, described close Envelope section is fitted with the seal washer；The visor gland be a disc type annular element, the visor gland include an inner edge to The changeover portion of lower stretching, the visor gland is covered on the visor base, and the changeover portion is closely pasted with the seal section Close；Screw is accordingly provided with the visor base and the visor gland, between the visor base and the visor gland It is bolted connection.

2. NA interface types visor as claimed in claim 1, it is characterised in that the visor base is flange base, described to regard The cross section of mirror base is spill.

3. NA interface types visor as claimed in claim 1, it is characterised in that the mirror mouth is located in the visor base The heart, the diameter constantly increase from top to bottom of the mirror mouth is until equal with the base diameter of the visor base.

4. NA interface types visor as claimed in claim 1, it is characterised in that the seal washer is clip sealing ring.

5. NA interface types visor as claimed in claim 1, it is characterised in that the diameter of the seal washer is more than the visor Glass.

6. NA interface types visor as claimed in claim 1, it is characterised in that the material of the endoscopy glass is tempering borosilicate glass Glass.

7. NA interface types visor as claimed in claim 1, it is characterised in that the upper limb of the seal section is an inclined-plane, described The lower edge of seal section is accordingly provided with groove with the seal washer.

8. NA interface types visor as claimed in claim 1, it is characterised in that the changeover portion is provided with corresponding to the seal section One inclined-plane.

9. NA interface types visor as claimed in claim 1, it is characterised in that described to withhold section indirectly with the endoscopy glass The without individual tolerance value grade of the flatness of contact portion point is H grades or more.

10. NA interface types visor as claimed in claim 1, it is characterised in that the glass gland and the endoscopy glass it Between axiality without individual tolerance value grade be H grades or more.