CN201310693Y - Tooth-thread coupling type flange - Google Patents

Tooth-thread coupling type flange Download PDF

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Publication number
CN201310693Y
CN201310693Y CNU2008201242169U CN200820124216U CN201310693Y CN 201310693 Y CN201310693 Y CN 201310693Y CN U2008201242169 U CNU2008201242169 U CN U2008201242169U CN 200820124216 U CN200820124216 U CN 200820124216U CN 201310693 Y CN201310693 Y CN 201310693Y
Authority
CN
China
Prior art keywords
flange
flange plate
tooth line
tooth
couplinkg
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNU2008201242169U
Other languages
Chinese (zh)
Inventor
沈忠协
耿海龙
钱勇
赵飞龙
陈少兵
罗旭洋
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.)
JIANGYIN HENGRUN HEAVY INDUSTRY CO., LTD.
Original Assignee
JIANGYIN HENGRUN FLANGE CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGYIN HENGRUN FLANGE CO Ltd filed Critical JIANGYIN HENGRUN FLANGE CO Ltd
Priority to CNU2008201242169U priority Critical patent/CN201310693Y/en
Application granted granted Critical
Publication of CN201310693Y publication Critical patent/CN201310693Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a flange connecting piece, in particular to a flange which adopts a connection mode of tooth-thread coupling; a closed type annular tooth thread is respectively arranged on the connecting surface of a first flange plate and the connecting surface of a second flange plate, and the tooth threads are contacted in a coupling mode, wherein an included angle formed by two sides of the tooth thread on the connecting surface of the first flange plate is slightly less than an included angle formed by two sides of the matched tooth thread on the connecting surface of the second flange plate. Because the tooth threads adopt the coupling mode of dogtooth intersection, the contact area between the two connecting flanges is increased. After the flange are fastened, the corresponding surfaces of the two flanges form an interwoven and interdependent integer due to the tooth threads, thereby obviously improving the sealability of the flanges per se and effectively solving the technical problem of flange plate leakage; even if tiny vibration appears at the connection part between flanges, the leakage problem of pipelines at the flange connection part can not appear due to the mutually-staggered coupling at the flange connection part.

Description

Tooth line couplinkg type flange
Technical field
The utility model relates to a kind of flange connector, is specifically related to a kind of coupled mode flange connecting of tooth line that adopts.
Background technique
Be used for the pipeline of fluids such as conveying gas or liquid, " leak volume " at " leak volume ", especially pipe joint place is the most important technical order in the pipework.The flange-interface place is the significant points of reaction engineering quality, and therefore, flange is to connect in the pipework and the vitals that seals.Conveyance fluid, particularly carry the pipe of the fluid with certain pressure, the leakage problem of flange joint, road is that conveyance conduit is failed the problem that effectively solves for a long time always.At present, the sealing of flange, except the performance of sealing medium " pad " (as rubber pad, asbestos packing, ox-hide pad) exists certain problem, the structure of flange plate self be being provided with of seal ring unreasonable also be the major reason of sewing.The flange plate surface of using in China's pipework all is the plane type water wave seal ring of unification of the motherland standard.Pipe fitting be connected fastening after, do not change the plane type contact form of flange plate.Add aging, the be full of cracks of sealing medium, problem such as impure concentrates in together, and has just caused pipe joint often to leak, therefore be necessary the structure that existing flange connects is improved.
The model utility content
The purpose of this utility model is to overcome defective of the prior art, change the existing traditional plane type contact form of flange plate, a kind of overall structure that neither changes existing unification of the motherland standard flange is provided, can realizes the effectively tooth line couplinkg type seal ring flange of sealing again.
For achieving the above object, the technical solution of the utility model is to adopt a kind of tooth line couplinkg type flange, second flange plate that connects surface and correspondence at first flange plate is connected and is respectively equipped with closed annular tooth line on the surface, described tooth line adopts the couplinkg type contact, and wherein first flange plate connects second flange plate that angle should be slightly less than with it matches that two limits of surperficial upper tooth line constitute and is connected the angle that two limits of surperficial upper tooth line constitute.
Wherein, described flange plate connect lip-deep closed annular tooth line should 〉=2 ring.
Wherein, the shape of described tooth line can adopt corrugated, trapezoidal, the rectangle of rule.
Wherein, between the tooth line of described first flange plate and described second flange plate, can fill up dress film rubber cushion.
Wherein, described first flange plate and described second flange plate are molding or are foundry goods.
Advantage of the present utility model and beneficial effect are, because the employing of tooth line is the coupled mode that canine tooth intersects, indicate through experiment to have the following advantages: 1, increased the area of contact between two adpting flanges.Flange fastening after, the tooth line makes corresponding surface become that you are part of me, the integral body that I am part of you, thereby significantly improved the sealability of flange self, effectively solved the technical problem that flange plate is sewed, the flange-interface place is interlaced coupled even small vibration appears in the flange-interface place, the leakage problem of connecting pipeline at flange connections also can not occur.Should in linkage structure have and connected simply, be easy to processing, be easy to install, be easy to debugging, and manufacturing and user cost are low, using effect is good, remarkable benefit etc. characteristics.
Description of drawings
Fig. 1 is the structural drawing of the utility model tooth line couplinkg type flange;
Fig. 2 is the worm's eye view of Fig. 1.
Among the figure: 1, first flange plate; 2, annular tooth line.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection domain of the present utility model with this.
The concrete technological scheme of implementing of the utility model is:
Adopt a kind of tooth line couplinkg type flange, second flange plate that connects surface and correspondence at first flange plate 1 is connected and is respectively equipped with closed annular tooth line 2 on the surface, described annular tooth line 2 employing couplinkg type contacts, wherein first flange plate 1 connects surperficial second flange plate that angle should be slightly less than with it matches of 2 two limits formations of annular tooth line and is connected the angle that 2 two limits formations of annular tooth line are gone up on the surface.
In the present embodiment, described flange plate connects lip-deep closed annular tooth line 2 and answers 〉=2 rings, and the technology peace scheme of accompanying each other is 3 rings.
In the present embodiment, the shape of described tooth line can adopt corrugated, trapezoidal, the rectangle, triangle of rule etc.
In the present embodiment, between the tooth line of described first flange plate 1 and described second flange plate, can fill up dress film rubber cushion.
In the present embodiment, described first flange plate 1 is molding with described second flange plate or is foundry goods.
The utility model is that the inspiration that is subjected to " screw thread " is finished when the sealing of research pipeline thread interface.With the water wave seal ring on the present flange, make tooth line seal ring into, make flange plate by original plane type contact, become the couplinkg type contact.And inside and outside circle diameter, the thickness of existing unification of the motherland standard flange, the diameter of fixed bolt hole, the equal no change in position.
As shown in Figure 1, embodiment further specifies content of the present utility model and embodiment: consult Fig. 1 and Fig. 2 flange plate selects the A3 material, diameter is 152mm, the caliber specification is selected 59mm, pipe range 150mm, flange plate is connected the surface become the closed annular tooth line 2 in 3 roads through machined into, the tooth line is shaped as isosceles trapezoid, it is about 90 ° that one of them flange 1 connects the angle that two limits of surperficial upper tooth line constitute, and it is that the degree of depth of 86 ° of tooth lines is 2.5mm that corresponding flange connects angle that two limits of surperficial upper tooth line constitute.Then flange plate is welded in the two ends of long tube, guarantees the tooth line 2 couplinkg types assembling contact on two corresponding flange plate.Be coated with efficient sealed dose of the flat pipeline thread interface of full coat (or loading onto the film rubber cushion) in the tooth line.By the pipework technical requirements connect fastening after, be placed on the enterprising line space gas of check-out console and suppress.When pressure rose to 2.0Mpa, pressurize did not still have and sews in 24 hours.Though above-mentioned test is only suppressed caliber 50mm, infer that from mechanical withstand voltage properties diameter can suitably increase tooth line 2 number of rings, the degree of depth of perhaps deepening tooth line 2 greater than 50mm.The degree of depth that can suitably reduce the tooth line less than 50mm.
The utility model is useful for the couplinkg type tooth line seal ring on all metals, nonmetal, round, ellipse, NBS, the non-standard flange dish.Its advantage is, 1, increased the area of contact between two adpting flanges.Flange fastening after, the tooth line makes corresponding surface become that you are part of me, the integral body that I am part of you, thereby significantly improved the sealability of flange self, effectively solved the technical problem that flange plate is sewed, the flange-interface place is interlaced coupled even small vibration appears in the flange-interface place, the leakage problem of connecting pipeline at flange connections also can not occur.Should in linkage structure have and connected simply, be easy to processing, be easy to install, be easy to debugging, and manufacturing and user cost are low, using effect is good, remarkable benefit etc. characteristics.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (5)

1, a kind of tooth line couplinkg type flange, it is characterized in that, second flange plate that connects surface and correspondence at first flange plate is connected and is respectively equipped with closed annular tooth line on the surface, described tooth line adopts the couplinkg type contact, and wherein first flange plate connects second flange plate that angle should be slightly less than with it matches that two limits of surperficial upper tooth line constitute and is connected the angle that two limits of surperficial upper tooth line constitute.
2, tooth line couplinkg type flange as claimed in claim 1 is characterized in that, described flange plate connects lip-deep closed annular tooth line should 〉=2 rings.
3, tooth line couplinkg type ring flange as claimed in claim 2 is characterized in that, the shape of described tooth line can adopt corrugated, trapezoidal, the rectangle of rule.
4, couplinkg type tooth line flange as claimed in claim 3 is characterized in that, can fill up dress film rubber cushion between the tooth line of described first flange plate and described second flange plate.
As each described tooth line couplinkg type flange in the claim 1 to 4, it is characterized in that 5, described first flange plate and described second flange plate are molding or are foundry goods.
CNU2008201242169U 2008-12-02 2008-12-02 Tooth-thread coupling type flange Expired - Lifetime CN201310693Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201242169U CN201310693Y (en) 2008-12-02 2008-12-02 Tooth-thread coupling type flange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201242169U CN201310693Y (en) 2008-12-02 2008-12-02 Tooth-thread coupling type flange

Publications (1)

Publication Number Publication Date
CN201310693Y true CN201310693Y (en) 2009-09-16

Family

ID=41107946

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201242169U Expired - Lifetime CN201310693Y (en) 2008-12-02 2008-12-02 Tooth-thread coupling type flange

Country Status (1)

Country Link
CN (1) CN201310693Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103742496A (en) * 2013-12-20 2014-04-23 安徽铜冠机械股份有限公司 Raise boring machine flanges
CN104455841A (en) * 2014-11-06 2015-03-25 苏州市诚键法兰制造有限公司 Novel combined stainless steel flange
CN104879770A (en) * 2015-04-27 2015-09-02 浙江特富锅炉有限公司 Feeding mechanism of modified structure biomass boiler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103742496A (en) * 2013-12-20 2014-04-23 安徽铜冠机械股份有限公司 Raise boring machine flanges
CN104455841A (en) * 2014-11-06 2015-03-25 苏州市诚键法兰制造有限公司 Novel combined stainless steel flange
CN104879770A (en) * 2015-04-27 2015-09-02 浙江特富锅炉有限公司 Feeding mechanism of modified structure biomass boiler

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: JIANGYIN HENGRUN HEAVY INDUSTRY CO., LTD.

Free format text: FORMER NAME: JIANGYIN HENGRUN FLANGE CO., LTD.

CP03 Change of name, title or address

Address after: 214423 A zone, European Industrial Park, Zhouzhuang Town, Jiangsu, Jiangyin, China

Patentee after: JIANGYIN HENGRUN HEAVY INDUSTRY CO., LTD.

Address before: 214400 A zone, European Industrial Park, Zhouzhuang Town, Wuxi, Jiangsu, Jiangyin

Patentee before: Jiangyin Hengrun Flange Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20090916