CN213176037U - Reverse flange quick-opening device with external bolt - Google Patents
Reverse flange quick-opening device with external bolt Download PDFInfo
- Publication number
- CN213176037U CN213176037U CN202021141084.8U CN202021141084U CN213176037U CN 213176037 U CN213176037 U CN 213176037U CN 202021141084 U CN202021141084 U CN 202021141084U CN 213176037 U CN213176037 U CN 213176037U
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- China
- Prior art keywords
- flange
- bolt
- reverse
- reverse flange
- notch
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- 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 - Fee Related
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- 239000011295 pitch Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000861 blow drying Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses an external reverse flange of bolt is device soon opened, have the blind flange of a set of notch and hookup their fastener including reverse flange, outer fringe to and the barrel that is connected with the reverse flange other end, the fastener is located the outside of barrel. And each notch corresponding to the reverse flange is provided with a bolt, and the other end of each bolt is provided with a nut. The notch is formed by a pair of support plates connected with the reverse flange. The bolt is an eyelet bolt and is hinged on the support plate. The utility model provides a reverse flange can not open or the problem of closing fast, can accomplish opening or closing of oil and gas separator blind flange fast when lightening operator intensity of labour.
Description
Technical Field
The utility model relates to a flange is opened device soon, especially relates to an external reverse flange of bolt is opened device soon.
Background
The output of air compressors in China is huge and rises year by year, and oil injection screw air compressors become the mainstream of the development of air compressors in the world nowadays due to the superior characteristics of high efficiency, energy conservation and the like. In order to obtain pure compressed air, oil-gas separators are arranged on oil-injection screw air compressors to separate oil-containing compressed air, and the oil-gas separators usually adopt reverse flanges to meet the requirement of installing filter elements.
The reverse flange belongs to a flange in a pressure vessel, and can be divided into a general flange and a reverse flange according to the relative position of a flange ring and a cylinder body, wherein the flange ring and the central circle diameter of bolts of the general flange are positioned on the outer side of the cylinder body, and the flange ring and the central circle diameter of bolts of the reverse flange are positioned on the inner side of the cylinder body (see GB 150.3-2011 Chapter 7 flange of 3 rd part: design of the pressure vessel, wherein the general flange is in a flange type of fig. 7-1 from page 186 to page 189, and a flange structure of fig. 7-2, and the reverse flange is in a reverse flange structure of fig. 7-9 from page 200). The reverse flange is usually connected with the flange cover by adopting a fastener, and the fastener needs to be completely screwed off or screwed on during opening and closing, so that time and labor are wasted. The existing quick-opening structure of a common flange (such as the structural type of HG/T21535-. However, since the inverted flange bolts are disposed inside and fixed in the bolt holes, the quick opening and closing cannot be performed as in the case of a general flange.
In the manufacturing process of the oil-gas separator, a flange cover needs to be arranged for a pressure resistance test, and after the test, the cover needs to be opened for blow drying and rust prevention treatment; the test run debugging of the whole machine is carried out together with the air compressor after the final assembly, and if a problem exists, the cover opening treatment is also needed; after the oil-gas separator is put into use, the oil-gas separator is required to be cleaned, the filter element is required to be replaced, the oil-gas separator is required to be checked and the like, the opening and closing operation is frequent, the process is time-consuming and labor-consuming, the labor intensity is high, and certain trouble is caused to the continuous production of enterprises.
Disclosure of Invention
The utility model discloses the main technical problem who solves provides an external reverse flange of bolt is device of opening soon, can solve the problem that oil and gas separator dismouting blind flange wastes time and energy.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a bolt external reverse flange is quick-open device, including reverse flange, the flange lid and the fastener that the outer fringe has a set of notch to and the barrel that is connected with the reverse flange other end, the fastener that is used for hookup reverse flange and flange lid is located the outside of barrel. A group of paired support plates are correspondingly arranged on the outer edge of the reverse flange, each pair of support plates is connected with the reverse flange to form a notch, a bolt is installed in the notch, and a nut is installed at the other end of the bolt; the bolts can adopt swing bolts which are hinged on the pair of support plates through pin shafts and can rotate around the pin shafts, and the swing bolts penetrate through the notches to be screwed with the nuts to tightly connect the reverse flange and the flange cover; the nut is generally a ring nut or a lifting ring nut.
When the flange cover is opened, the nut is rotated by a plurality of screw pitches to enable one bolt to be connected and loosened, then the movable joint bolt is rotated around the pin shaft and moved away from the notch, and the reverse flange and the flange cover can be unlocked, so that the reverse flange can be opened quickly. Conversely, only a few screw pitches are needed to complete the fastening of a bolt connection.
The utility model has the advantages that: the utility model provides a reverse flange can not open or the problem of closing fast, when lightening operator intensity of labour, can accomplish oil and gas separator blind flange fast and open or close. Correspondingly reduced the maintenance cost of air compressor machine, be favorable to increasing the effective operating time of equipment. The utility model has the characteristics of simple structure, the fastening connection is reliable, and it is convenient to make.
Drawings
Fig. 1 is a schematic structural view of a reverse flange quick-opening device with external bolts according to the present invention in a top view direction;
FIG. 2 is a schematic view of a partial sectional structure of the external reverse flange quick-opening device of the present invention in the direction of A-A;
fig. 3 is a schematic view of a partial structure of the reverse flange quick-opening device with external bolts of the present invention, as seen from the left side of fig. 2;
in the drawings, the components are numbered as follows:
1. a barrel; 2. an eye bolt; 3. a pin shaft; 4. a support plate; 5. a ring nut; 6. a reverse flange; 7. and (4) a flange cover.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
As shown in fig. 1 to 3, the utility model discloses a reverse flange of external bolt is opened device soon, including reverse flange 6, the outer fringe have a blind flange 7 of a set of notch, round pin axle 3, swing bolt 2, ring nut 5 to and the barrel 1 that is connected with the reverse flange 6 other end, the fastener that is used for hookup reverse flange 6 and blind flange 7 is located the barrel 1 outside. A group of paired support plates 4 are correspondingly arranged on the outer edge of the reverse flange 6, and each pair of support plates 4 is connected with the reverse flange 6 to form a notch; the movable joint bolt 2 is arranged in the notch in a hinged mode on the pair of support plates 4 through the pin shaft 3 and can rotate around the pin shaft 3, the movable joint bolt 2 penetrates through the notch to be screwed with the ring nut 5 arranged at the other end, and the reverse flange 6 and the flange cover 7 are connected in a fastening mode.
When the reverse flange 6 is opened, the ring nut 5 is rotated by a plurality of screw pitches to enable one bolt to be connected and loosened, then the movable joint bolt 2 is rotated to rotate around the pin shaft 3 and move away from the notch, and the reverse flange 6 and the flange cover 7 can be unlocked, so that the reverse flange 6 can be quickly opened and closed. Conversely, only a few screw pitches are needed to complete the fastening of a bolt connection.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the same principle as the present invention.
Claims (4)
1. The utility model provides an external reverse flange of bolt is quick-open device, includes reverse flange, the flange lid that the outer fringe has a set of notch and connects their fastener to and the barrel that is connected with the reverse flange other end, characterized in that: the fastener is located the outside of barrel.
2. A counter-flange quick-opening device according to claim 1, characterized in that: and each notch corresponding to the reverse flange is provided with a bolt, and the other end of each bolt is provided with a nut.
3. A counter-flange quick-opening device according to claim 2, characterized in that: the notch is formed by a pair of support plates connected with the reverse flange.
4. A counter-flange quick-opening device according to claim 2 or 3, characterized in that: the bolt is an eyelet bolt and is hinged on the support plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021141084.8U CN213176037U (en) | 2020-06-18 | 2020-06-18 | Reverse flange quick-opening device with external bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021141084.8U CN213176037U (en) | 2020-06-18 | 2020-06-18 | Reverse flange quick-opening device with external bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213176037U true CN213176037U (en) | 2021-05-11 |
Family
ID=75788550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021141084.8U Expired - Fee Related CN213176037U (en) | 2020-06-18 | 2020-06-18 | Reverse flange quick-opening device with external bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213176037U (en) |
-
2020
- 2020-06-18 CN CN202021141084.8U patent/CN213176037U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210511 |