CN201507738U - Tight-connection concealed flange structure - Google Patents

Tight-connection concealed flange structure Download PDF

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Publication number
CN201507738U
CN201507738U CN 200920209761 CN200920209761U CN201507738U CN 201507738 U CN201507738 U CN 201507738U CN 200920209761 CN200920209761 CN 200920209761 CN 200920209761 U CN200920209761 U CN 200920209761U CN 201507738 U CN201507738 U CN 201507738U
Authority
CN
China
Prior art keywords
flange
screw
built
upper flange
tightly connected
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
CN 200920209761
Other languages
Chinese (zh)
Inventor
韩安伟
李政宏
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.)
GUANLONG VALVE MACHINERY CO Ltd SHANGHAI
SHANGHAI QIRONG MACHINERY AUTOMATIC CONTROL CO Ltd
Original Assignee
GUANLONG VALVE MACHINERY CO Ltd SHANGHAI
SHANGHAI QIRONG MACHINERY AUTOMATIC CONTROL 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 GUANLONG VALVE MACHINERY CO Ltd SHANGHAI, SHANGHAI QIRONG MACHINERY AUTOMATIC CONTROL CO Ltd filed Critical GUANLONG VALVE MACHINERY CO Ltd SHANGHAI
Priority to CN 200920209761 priority Critical patent/CN201507738U/en
Application granted granted Critical
Publication of CN201507738U publication Critical patent/CN201507738U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a tight-connection concealed flange structure, comprising a rubber stopper, an upper flange, a rubber ring, a screw and a lower flange, the rubber ring is arranged between the upper flange and the lower flange, the screw is embedded in the upper flange and penetrates through the rubber ring to connect the lower flange, and the rubber stopper is arranged at the top part of the upper screw on the convex rib of the upper flange. Compared with the prior art, the tight-connection concealed flange structure has the advantages of corrosion protection repeated usage, low manufacturing and maintaining cost and small overall dimension and the like.

Description

A kind of built-in flange arrangement that is tightly connected
Technical field
The utility model relates to flange, especially relates to a kind of built-in flange arrangement that is tightly connected.
Background technique
A kind of structure that is tightly connected that flange is a pipeline, valve is commonly used.Existing flange arrangement utilizes fastening pieces such as double-screw bolt, a sealing gasket is clamped in a pair of flange facing, referring to Fig. 1.Fastening pieces such as the double-screw bolt of existing structure pass the through hole of flange flange, and two end part are exposed to the outside, and in burying the surrounding environment that ground, inspection shaft etc. are moist, corrosivity is strong, very easily corrosion causes not quick detachable.Mostly the sealing gasket of existing structure is nonmetallic material such as asbestos packing sheet, after the pressure extruding through flange facing, can't reuse after the dismounting once more.Existing structure the time requires the parallelism of a pair of sealing surface, concentricity higher in assembling, and the assembling maintenance cost is higher.The sealing surface of existing structure needs precision machining, and a double-screw bolt need be joined two nuts, and takies bigger space, and the flange volume is bigger, causes the increase of whole manufacture cost.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of anti-corrosion, reusable, the manufacturing built-in flange arrangement that is tightly connected that maintenance cost is low, boundary dimension is little for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of built-in flange arrangement that is tightly connected, it is characterized in that, comprise plug, upper flange, cushion rubber, screw, lower flange, described cushion rubber is arranged between upper flange and the lower flange, described screw embeds upper flange, pass cushion rubber and connect lower flange, described plug is arranged on the flange screwing top of upper flange.
Described screw is a hexagon socket cap head screw, and the one end is the cylinder countersunk head, and the other end is a screw thread.
The upper flange place of described upper flange is provided with equally distributed cylinder countersunk head shape screw, and the cylinder countersunk head of screw places in this screw, fills hot melt adhesive then and form plug in screw, seals.
Described upper flange bottom is provided with a circle seal groove, and cushion rubber is arranged in the sealing groove.
Described cushion rubber is an elastic rubber material, and the cross section is circular whole circle, is distributed with ear shape annulus on every side, and the internal diameter of ear shape annulus and the external diameter of screw are complementary, and will go up lower flange and screw all seals.
The flange inside of described lower flange is provided with tapped blind hole, and the lower end of screw is arranged in this tapped blind hole.
Compared with prior art, flange seal linkage structure of the present utility model, the fastening piece of existing flange arrangement is built-in by the formula of wearing is improved to,, thoroughly isolated in inside configuration by plug, rubber sealing with external environment condition, solved the corrosion problem.Cushion rubber is selected elastic rubber material for use, and is low to the processing request of sealing surface, and can repeatedly dismantle recycling, reaches to reduce the effect of making maintenance cost.Sunk screw has been saved installing space simultaneously, and the bearing area of flange reduces, and the total compactness has reached the effect that reduces screw diameter and boundary dimension.
Description of drawings
Fig. 1 is existing flange arrangement schematic representation;
Fig. 2 is a flange arrangement schematic representation of the present utility model.
Among the figure: the 1-plug; The 2-upper flange; The 3-cushion rubber; The 4-screw; The 5-lower flange.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
As shown in Figure 2, the flange seal linkage structure that the utility model provides comprises upper flange 2, lower flange 5, screw 4, plug 1, cushion rubber 3.
On the flange of upper flange 2, have equally distributed cylinder countersunk head screw, screw 4 is wherein built-in, and the distributing position of screw 4 is the shortest apart from the flange inner chamber simultaneously, and the bearing area of flange reduces, and has reduced screw diameter and boundary dimension.The bottom of upper flange 2 is cast as a circle seal groove, need not precision machining, has reduced processing and matching requirements.On the flange of lower flange 5, have tapped blind hole, the screw bottom isolates with external environment condition.Screw 4 is a hexagon socket cap head screw, the one end is the cylinder countersunk head, the other end is a screw thread, screw 4 is screwed into from upper flange 2 tops, pass cushion rubber 3, after being screwed into the tapped blind hole of lower flange 5, the upper-end surface of cylinder countersunk head is lower than the sunk screw hole of upper flange 2, and plug 1 can select for use hot melt adhesive that the countersunk head screw is filled sealing.Cushion rubber 3 is an elastic rubber material, and the cross section is circular whole circle, is distributed with ear shape annulus on every side, medium, the screw 4 of flange inner chamber all can be sealed.

Claims (6)

1. built-in flange arrangement that is tightly connected, it is characterized in that, comprise plug, upper flange, cushion rubber, screw, lower flange, described cushion rubber is arranged between upper flange and the lower flange, described screw embeds upper flange, pass cushion rubber and connect lower flange, described plug is arranged on the flange screwing top of upper flange.
2. a kind of built-in flange arrangement that is tightly connected according to claim 1 is characterized in that described screw is a hexagon socket cap head screw, and the one end is the cylinder countersunk head, and the other end is a screw thread.
3. a kind of built-in flange arrangement that is tightly connected according to claim 1 and 2, it is characterized in that, the upper flange place of described upper flange is provided with equally distributed cylinder countersunk head shape screw, and the cylinder countersunk head of screw places in this screw, and described plug sealing is filled in the screw.
4. a kind of built-in flange arrangement that is tightly connected according to claim 1 and 2 is characterized in that, described upper flange bottom is provided with a circle seal groove, and cushion rubber is arranged in the sealing groove.
5. a kind of built-in flange arrangement that is tightly connected according to claim 4 is characterized in that, the cross section of described cushion rubber is circular whole circle, is distributed with ear shape annulus on every side, and the internal diameter of ear shape annulus and the external diameter of screw are complementary.
6. a kind of built-in flange arrangement that is tightly connected according to claim 1 and 2 is characterized in that the flange inside of described lower flange is provided with tapped blind hole, and the lower end of screw is arranged in this tapped blind hole.
CN 200920209761 2009-09-16 2009-09-16 Tight-connection concealed flange structure Expired - Lifetime CN201507738U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200920209761 CN201507738U (en) 2009-09-16 2009-09-16 Tight-connection concealed flange structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200920209761 CN201507738U (en) 2009-09-16 2009-09-16 Tight-connection concealed flange structure

Publications (1)

Publication Number Publication Date
CN201507738U true CN201507738U (en) 2010-06-16

Family

ID=42468865

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200920209761 Expired - Lifetime CN201507738U (en) 2009-09-16 2009-09-16 Tight-connection concealed flange structure

Country Status (1)

Country Link
CN (1) CN201507738U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102682865A (en) * 2012-05-30 2012-09-19 清华大学 Spent fuel storing container
CN102022596B (en) * 2009-09-16 2012-12-19 上海冠龙阀门机械有限公司 Sealing and connecting structure of flange
CN103398248A (en) * 2013-08-19 2013-11-20 孙蕾 Flange with built-in connecting bolts
CN107906390A (en) * 2017-11-14 2018-04-13 华荣科技股份有限公司 A kind of anti-explosion LED fluorescent tube

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102022596B (en) * 2009-09-16 2012-12-19 上海冠龙阀门机械有限公司 Sealing and connecting structure of flange
CN102682865A (en) * 2012-05-30 2012-09-19 清华大学 Spent fuel storing container
CN102682865B (en) * 2012-05-30 2015-07-15 清华大学 Spent fuel storing container
CN103398248A (en) * 2013-08-19 2013-11-20 孙蕾 Flange with built-in connecting bolts
CN107906390A (en) * 2017-11-14 2018-04-13 华荣科技股份有限公司 A kind of anti-explosion LED fluorescent tube

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C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20100616

CX01 Expiry of patent term