CN204239751U - A kind of Novel threaded sealing structure - Google Patents

A kind of Novel threaded sealing structure Download PDF

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Publication number
CN204239751U
CN204239751U CN201420678768.XU CN201420678768U CN204239751U CN 204239751 U CN204239751 U CN 204239751U CN 201420678768 U CN201420678768 U CN 201420678768U CN 204239751 U CN204239751 U CN 204239751U
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CN
China
Prior art keywords
seal ring
link
screw
sealing
ring
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Active
Application number
CN201420678768.XU
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Chinese (zh)
Inventor
曹朝晖
肖利
陈强
葛发华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou Aerospace Linquan Motor Co Ltd
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Guizhou Aerospace Linquan Motor Co Ltd
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Priority to CN201420678768.XU priority Critical patent/CN204239751U/en
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Abstract

The utility model provides a kind of Novel threaded sealing structure, comprises screw, packing ring, seal ring, link A and link B, described link A is fixedly connected with by the screw section of screw with link B, the joint of described screw is provided with seal ring and packing ring, and the internal surface of described packing ring and seal ring is all close to the outer surface of joint, the utility model adopts the combined sealing structure of inclined-plane sealing and radial seal, make seal ring when being under pressure, there is the space that descending, be unlikely to distortion to damage too greatly, adopt non-metallic gasket can reduce to damage the possibility of seal ring, adopt the little non-metallic pad loop material of friction factor can also reduce the frictional force with seal ring, reduce the friction texturizing of seal ring, non-metallic gasket can play certain sealing effect equally simultaneously, the further reliability improving sealing, the utility model processing is simple, install, convenient disassembly, do not damage Sealing, simple and reliable.

Description

A kind of Novel threaded sealing structure
Technical field
The utility model relates to product sealing technique, is specifically related to a kind of Novel threaded sealing structure.
Background technique
Conventional sealing means is generally two kinds: axis and radial seal, and rubber seal is hold yielding part, realizes sealing by extrusion-deformation, but needs to consider certain decrement and stretch rate, otherwise there will be poor sealing, damage or shortening in working life.Axial seal only needs the degree of depth ensureing seal groove, easy to process, if but seal for screw, be screwed in process at screw, while seal ring is axially compressed, also can be subject to torsional friction power between end face, sealed ring deformation may be made serious and damage, not being suitable for the seal with screwed joint of the visual plant of Aeronautics and Astronautics; Radial seal needs to consider stretch rate and compressibility simultaneously, as screw sealing, needs each corresponding part each several part size relevant to seal ring to have certain precision, causes difficulty of processing to increase.
Adopt inclined plane sealing structure can reduce the problem of axial seal, inclined-plane sealing is actually axially and the synthesis of radial seal.Screw connects the reason adopting axial seal that seal ring is damaged, mainly in the later stage that seal ring constantly compresses, pressure strengthens, frictional force strengthens, seal ring torsional deflection is badly damaged, inclined-plane sealing can make seal ring in the process of compression, there is a continuous descending space, be unlikely to cause the pressure of seal ring too large, simultaneously inclined-plane makes the rotating friction force that produces on seal ring also relatively little, but simple inclined-plane sealing equally also needs the amount of deformation of higher dimensional accuracy guarantee seal ring, and difficulty of processing is large.
Model utility content
For solving the problems of the technologies described above, the utility model provides a kind of Novel threaded sealing structure, this Novel threaded sealing structure by arranging plane of inclination and step surface on link B, and is installed packing ring and seal ring and is solved the serious and problem damaged of sealed ring deformation.
The utility model is achieved by the following technical programs.
A kind of Novel threaded sealing structure that the utility model provides, comprise screw, packing ring, seal ring, link A and link B, described link A is fixedly connected with by the screw section of screw with link B, the joint of described screw is provided with seal ring and packing ring, the internal surface of described packing ring and seal ring is all close to the outer surface of the joint of screw; The upper end of the through hole of described link B is provided with plane of inclination and step surface, and the annular inner corner trim in described bead outer surface is corresponding with the annular external corner that plane of inclination and step surface jointing place are formed.
The lower end surface of described packing ring is the intilted conical surface.
Described packing ring and seal ring are made by elastic material.
Described seal ring is O RunddichtringO.
The beneficial effects of the utility model are: the combined sealing structure adopting inclined-plane sealing and radial seal, make seal ring when being under pressure, there is the space that descending, be unlikely to distortion to damage too greatly, adopt non-metallic gasket can reduce to damage the possibility of seal ring, adopt the little non-metallic pad loop material of friction factor can also reduce the frictional force with seal ring, reduce the friction texturizing of seal ring, non-metallic gasket can play certain sealing effect equally simultaneously, the further reliability improving sealing, the utility model processing is simple, install, convenient disassembly, do not damage Sealing, simple and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of link B in Fig. 1;
Fig. 3 is the structural representation of Fig. 1 middle washer;
In figure: 1-screw, 11-screw section, 12-joint, 13-cap portion, 2-packing ring, 21-inner corner trim, 3-seal ring, 4-link A, 5-link B, 51-plane of inclination, 52-step surface, 53-through hole.
Embodiment
Further describe the technical solution of the utility model below, but described in claimed scope is not limited to.
A kind of Novel threaded sealing structure as depicted in figs. 1 and 2, comprise screw 1, packing ring 2, seal ring 3, link A4 and link B5, described link A4 is fixedly connected with by the screw section 11 of screw 1 with link B5, the joint 12 of described screw 1 is provided with seal ring 3 and packing ring 2, the internal surface of described packing ring 2 and seal ring 3 is all close to the outer surface of the joint 12 of screw 1; The upper end of the through hole 53 of described link B5 is provided with plane of inclination 51 and step surface 52, and the annular inner corner trim 21 on described packing ring 2 outer surface is corresponding with the annular external corner that plane of inclination 51 and step surface 52 jointing place are formed.
As shown in Figure 3, the lower end surface of described packing ring 2 is the intilted conical surface.Improve overall use sealing effect, installing/dismounting is also all very convenient.
Described packing ring 2 and seal ring 3 are made by elastic material, and described seal ring 3 is O RunddichtringO.Adopt the little non-metallic pad loop material of friction factor can also reduce the frictional force with seal ring, reduce the friction texturizing of seal ring, non-metallic gasket can play certain sealing effect equally simultaneously, improves the reliability of sealing further.
The utility model adopts the combined bath structure of straight trough and taper groove counterbore, effectively prevent the damage of conventional seal structure to seal ring, and processing is simple, not high to the requirement on machining accuracy of each several part part.The sealing of similar rotation assembling mode can be applied to, or be applied in reliably good high sealing occasion.

Claims (4)

1. a Novel threaded sealing structure, comprise screw (1), packing ring (2), seal ring (3), link A (4) and link B (5), it is characterized in that: described link A (4) is fixedly connected with by the screw section (11) of screw (1) with link B (5), the joint (12) of described screw (1) is provided with seal ring (3) and packing ring (2), the internal surface of described packing ring (2) and seal ring (3) is all close to the outer surface of the joint (12) of screw (1);
The upper end of the through hole (53) of described link B (5) is provided with plane of inclination (51) and step surface (52), and the annular inner corner trim (21) on described packing ring (2) outer surface is corresponding with the annular external corner that plane of inclination (51) and step surface (52) jointing place are formed.
2. Novel threaded sealing structure as claimed in claim 1, is characterized in that: the lower end surface of described packing ring (2) is the intilted conical surface.
3. Novel threaded sealing structure as claimed in claim 1 or 2, is characterized in that: described packing ring (2) and seal ring (3) are made by elastic material.
4. Novel threaded sealing structure as claimed in claim 1, is characterized in that: described seal ring (3) is O RunddichtringO.
CN201420678768.XU 2014-11-13 2014-11-13 A kind of Novel threaded sealing structure Active CN204239751U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420678768.XU CN204239751U (en) 2014-11-13 2014-11-13 A kind of Novel threaded sealing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420678768.XU CN204239751U (en) 2014-11-13 2014-11-13 A kind of Novel threaded sealing structure

Publications (1)

Publication Number Publication Date
CN204239751U true CN204239751U (en) 2015-04-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420678768.XU Active CN204239751U (en) 2014-11-13 2014-11-13 A kind of Novel threaded sealing structure

Country Status (1)

Country Link
CN (1) CN204239751U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104912975A (en) * 2015-06-17 2015-09-16 王迪蔚 Sealing structure and spring brake chamber
CN105771090A (en) * 2016-05-11 2016-07-20 常州瑞神安医疗器械有限公司 Sealing structure for implantable-type medical instrument, and pulse generator
CN109794741A (en) * 2018-12-24 2019-05-24 新兴铸管(浙江)铜业有限公司 Casting machine steel band installing mechanism and casting machine steel band installation method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104912975A (en) * 2015-06-17 2015-09-16 王迪蔚 Sealing structure and spring brake chamber
CN105771090A (en) * 2016-05-11 2016-07-20 常州瑞神安医疗器械有限公司 Sealing structure for implantable-type medical instrument, and pulse generator
CN105771090B (en) * 2016-05-11 2018-07-10 常州瑞神安医疗器械有限公司 A kind of implantable medical device sealing structure and impulse generator
CN109794741A (en) * 2018-12-24 2019-05-24 新兴铸管(浙江)铜业有限公司 Casting machine steel band installing mechanism and casting machine steel band installation method

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