CN205521138U - Flange expander - Google Patents
Flange expander Download PDFInfo
- Publication number
- CN205521138U CN205521138U CN201620095322.3U CN201620095322U CN205521138U CN 205521138 U CN205521138 U CN 205521138U CN 201620095322 U CN201620095322 U CN 201620095322U CN 205521138 U CN205521138 U CN 205521138U
- Authority
- CN
- China
- Prior art keywords
- flange
- nut
- thread
- expander
- external thread
- 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.)
- Active
Links
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a flange expander belongs to the pipeline maintenance tool design field. Flange expander includes first nut and screw rod, the one end of screw rod is equipped with first external screw thread, is equipped with first internal thread in the first nut, and first external screw thread closes with first interior thread to match, the one end and the contact of first flange of first nut, the other end and the contact of second flange of screw rod, when the in -process that first nut was screwed out from first external screw thread, the distance between first flange and the second flange increases. Through using this flange expander can make the distance increase between first flange and the second flange, can change the eight characters blind plate that presss from both sides between two flanges this moment, so need not to engage the operating personnel of specialized company to use the hydraulic pressure expander to increase two distances between the flange, reduced the cost of change eight characters blind plate.
Description
Technical Field
The utility model relates to a pipeline repair tools design field, in particular to flange expander.
Background
In the pipeline construction, couple together through flange joint between pipeline and the pipeline, still be equipped with a eight characters blind plate between the flange of a pipeline and the flange of another pipeline usually, half of eight characters blind plate is the solid slab, half is hollow circle, when the pipeline carries out normal transportation work, hollow circle is located between the flange of two pipelines, can make the pipeline carry out normal defeated logical, but when the pipeline needs the maintenance, need place the solid slab between the flange of two pipelines, certain section pipeline that will need the maintenance is kept apart, need suitably increase with the distance between the flange of two pipelines this moment, and then change the solid slab of eight characters blind plate between the flange of two pipelines.
At present, the distance between the flanges of two pipelines is increased by using the hydraulic expander more, the hydraulic expander comprises two expansion arms, a hydraulic cylinder body and a piston, the two expansion arms are installed between the flanges of the two pipelines, the piston is located in the hydraulic cylinder body, the hydraulic expander is electrified during use, hydraulic oil in the hydraulic cylinder body pushes the piston to move back and forth so as to drive the distance between the two expansion arms to be increased, and the distance between the flange of one pipeline and the flange of the other pipeline is increased.
In the process of implementing the present invention, the inventor finds that the prior art has at least the following problems:
the distance between the flanges is increased by using the hydraulic expander, the hydraulic expander needs to be operated by an operator of a professional company, and the hydraulic expander can normally work only by electrifying the hydraulic expander, so that the cost for exchanging the splayed blind plate is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems of the prior art, an embodiment of the present invention provides a flange expander, which includes a first nut and a screw rod;
a first external thread is arranged at one end of the screw rod, a first internal thread is arranged in the first nut, and the first external thread is matched with the first internal thread;
one end of the first nut is in contact with the first flange, the other end of the screw is in contact with the second flange, and when the first nut is screwed out from the first external thread, the distance between the first flange and the second flange is increased.
Optionally, the flange expander further comprises a second nut;
the other end of the screw rod is provided with a second external thread, a second internal thread is arranged in the second nut, the second external thread is matched with the second internal thread, and the rotating directions of the first external thread and the second external thread are opposite;
One end of the second nut is in contact with the second flange, and when the first nut is unscrewed from the first external thread and the second nut is unscrewed from the second external thread simultaneously, the distance between the first flange and the second flange is increased.
Optionally, one end of the first nut and one end of the second nut are of a tapered configuration.
Optionally, the thread length of the first internal thread is greater than or equal to the thread length of the first external thread, and the thread length of the second internal thread is greater than or equal to the thread length of the second external thread.
Optionally, the thread length of the first external thread and the thread length of the second external thread are equal to half the length of the screw.
Optionally, the first nut and the second nut are four-sided nuts or six-sided nuts.
Optionally, the outer surfaces of the first nut and the second nut are provided with anti-slip threads.
Optionally, a fixing block is arranged at the other end of the screw rod.
Optionally, the cross section of the fixing block is quadrilateral or hexagonal.
Optionally, the material of the first nut, the screw and the second nut is carbon steel or stainless steel.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
through placing this flange expander between the gap of two flanges for first nut and first flange contact, the other end and the second flange contact of screw rod, in-process when first nut revolves out from the first external screw thread of screw rod, the length of this flange expander increases, make the distance between first flange and the second flange increase, can change the eight characters blind plate of pressing from both sides between two flanges this moment, so need not to engage professional company's operating personnel and use the hydraulic pressure expander to increase the distance between two flanges, the cost of changing eight characters blind plate has been reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flange expander according to an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a screw rod according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first nut according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a cross section of a fixing block according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a flange expander according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a screw rod according to a first embodiment of the present invention;
fig. 7 is a cross-sectional view of a flange expander according to an embodiment of the present invention;
FIG. 8 is a left side view of a first nut provided by the present invention using a first novel embodiment;
fig. 9 is a schematic structural diagram of a flange expander according to an embodiment of the present invention.
Wherein,
1 a first nut, 11 a first internal thread;
2, a screw rod, 21 a first external thread and 22 a second external thread;
3 second nut, 31 second internal thread;
4, a conical structure;
a, fixing blocks;
b, anti-skid lines.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, the embodiment of the present invention provides a flange expander, which includes a first nut 1 and a screw rod 2;
As shown in fig. 2, one end of the screw rod 2 is provided with a first external thread 21, as shown in fig. 3, a first internal thread 11 is provided in the first nut 1, and the first external thread 21 is matched with the first internal thread 11;
one end of the first nut 1 is in contact with the first flange, the other end of the screw rod 2 is in contact with the second flange, and when the first nut 1 is screwed out from the first external thread 21, the distance between the first flange and the second flange is increased.
Through placing this flange expander between the gap of two flanges for first nut 1 and first flange contact, the other end and the second flange contact of screw rod 2, in the in-process that first nut 1 revolves out from the first external screw thread 21 of screw rod 2, the length of this flange expander increases, make the distance increase between first flange and the second flange, can change the eight characters blind plate of pressing from both sides between two flanges this moment, so need not to engage professional company's operating personnel and use the hydraulic pressure expander to increase the distance between two flanges, the cost of changing eight characters blind plate has been reduced.
When the flange expander is used, the flange expander is firstly clamped between two flanges, an operator can hold a pair of pliers with one hand, hold a wrench with the other hand, hold the other end of the screw rod 2 by the pliers to fix the screw rod 2, rotate the first nut 1 by the wrench to enable the nut to be screwed out from the first external thread 21 of the screw rod 2, further increase the distance between the first flange and the second flange, when the flange expander is used, in order to ensure that the distance between different positions between the two flanges is uniformly increased, two flange expanders in the embodiment of the utility model can be used simultaneously, one flange expander is placed at a certain position between the two flanges, the other flange is placed at the other position between the two flanges, and the certain position and the other position are symmetrical relative to the centers of the two flanges, two operating personnel operate simultaneously, guarantee that the distance between the different positions department between two flanges evenly increases.
Optionally, as shown in fig. 2, the other end of the screw rod 2 is provided with a fixing block a.
Set up fixed block A at the other end of screw rod 2, the pliers can press from both sides on fixed block A, makes things convenient for the pliers to fix screw rod 2, when preventing rotatory first nut 1, screw rod 2 and first nut 1 are rotatory to same direction.
Alternatively, as shown in fig. 4, the cross section of the fixing block a is hexagonal, and the cross section of the fixing block a may also be quadrangular.
When the cross section of the fixing block A is set to be quadrilateral or hexagonal, another wrench can be used for being clamped on two sides of the quadrilateral or hexagonal of the fixing block A, when one wrench is used for rotating the first nut 1, the other wrench is used for rotating the fixing block A in the direction opposite to the rotation direction of the first nut 1, so that relative motion is generated between the first nut 1 and the screw rod 2, and the first nut 1 is screwed out of the screw rod 2 more quickly.
Optionally, as shown in fig. 5, the flange expander further comprises a second nut 3;
as shown in fig. 6, the other end of the screw rod 2 is provided with a second external thread 22, as shown in fig. 7, a second internal thread 31 is provided in the second nut 3, the second external thread 22 is matched with the second internal thread 31, and the rotation directions of the first external thread 21 and the second external thread 22 are opposite;
One end of the second nut 3 is in contact with the second flange, and when the first nut 1 is unscrewed from the first external thread 21 and the second nut 3 is unscrewed from the second external thread 22 simultaneously, the distance between the first flange and the second flange is increased.
When the flange expander is clamped between a first flange and a second flange, one end of a first nut 1 is contacted with the first flange, one end of a second nut 3 is contacted with the second flange, an operator can hold a spanner with two hands respectively, use one spanner to clamp the first nut 1, clamp the other spanner on the second nut 3, rotate the two nuts in opposite directions simultaneously with the two hands, for example, the left hand presses the first wrench down, causing the first nut 1 to rotate down, the right hand lifts the second wrench up, causing the second nut 3 to rotate up, since the first external thread 21 cooperating with the first nut 1 and the second external thread 22 cooperating with the second nut 3 are of opposite hand, when the first nut 1 and the second nut 3 are rotated in opposite directions, the distance between the nuts located at both ends of the screw 2 and the middle of the screw 2 is increased at the same time, so that the distance between the first flange and the second flange is increased.
Alternatively, as shown in fig. 5, one end of the first nut 1 and one end of the second nut 3 are tapered structures 4.
For example, the first nut 1 and the second nut 3 may be designed as tapered nuts, such that when the flange expander is placed between the first flange and the second flange, the first nut 1 is in point contact with the first flange, and the second nut 3 is in point contact with the second flange, the contact area between the first nut 1 and the first flange, and the contact area between the second nut 3 and the second flange are reduced, such that when the first nut 1 and the second nut 3 are rotated, the force applied to the first flange and the second flange by the first nut 1 and the second nut 3 is increased, and the friction force between the first nut 1 and the first flange, and the friction force between the second nut 3 and the second flange are reduced, so as to increase the distance between the first flange and the second flange more easily.
Alternatively, as shown in fig. 8, the first nut 1 and the second nut 3 may be hexagonal nuts or quadrilateral nuts.
Through designing into four sides nut or hexagonal nut with first nut 1 and second nut 3 for the spanner can be more convenient card on first nut 1 and second nut 3, makes things convenient for operating personnel to rotate first nut 1 and second nut 3.
Alternatively, as shown in fig. 9, the outer surfaces of the first nut 1 and the second nut 3 are provided with anti-slip threads B.
The anti-slip threads B are arranged on the outer surfaces of the first nut 1 and the second nut 3, so that when an operator rotates the first nut 1 and the second nut 3 by using a wrench, the wrench can be prevented from sliding with the first nut 1 and the second nut 3.
Alternatively, the thread length of the first internal thread 11 is greater than or equal to the thread length of the first external thread 21, and the thread length of the second internal thread 31 is greater than or equal to the thread length of the second external thread 22.
The length of the first internal thread 11 of the first nut 1 is designed to be larger than or equal to the thread length of the first external thread 21, the thread length of the second internal thread 31 of the second nut 3 is designed to be larger than or equal to the thread length of the second external thread 22, when the flange expander is not used, the first external thread 21 can be screwed into the first internal thread 11 completely, the second external thread 22 can be screwed into the second internal thread 31 completely, and the first external thread 21 or the second external thread 22 is prevented from being worn, so that the normal use of the flange expander is influenced.
Alternatively, the thread length of the first external thread 21 and the thread length of the second external thread 22 are equal to half the length of the screw 2.
So design, can be when not being suitable for this flange expander, with first external screw thread 21 whole precession first internal thread 11, second external screw thread 22 whole precession second internal thread 31, because first external screw thread 21 and second external screw thread 22 respectively account for half of screw rod 2 length, so half of screw rod 2 is located first nut 1, and half is located second nut 3, not only can protect screw rod 2, reduces the length of this flange expander simultaneously, portable.
Alternatively, the first nut 1, the screw 2 and the second nut 3 may be made of carbon steel or stainless steel.
Because the first nut 1, the screw rod 2 and the second nut 3 are small in size, the hydraulic expander can be processed by using waste metal materials, and compared with a hydraulic expander, the hydraulic expander is low in cost.
Through placing the flange expander in this use novel embodiment between the gap of two flanges for first nut 1 and a slice flange contact, the other end and the second flange contact of screw rod 2, in-process when first nut 1 revolves out from the first external screw thread 21 of screw rod 2, the length of this flange expander increases, make the distance increase between first flange and the second flange, the eight characters blind plate that can clamp between two flanges this moment exchanges, so need not to engage professional company's operating personnel and use hydraulic pressure expander to increase the distance between two flanges, the cost of exchanging the eight characters blind plate has been reduced.
Example two
The flange expander is implemented by taking the structural dimensions of the flange expander described in the first embodiment, and the actual design can be performed by referring to the first embodiment, but the flange expander is not limited to the dimensions described in the first embodiment.
For example, the thickness of the splayed blind plate arranged between certain two flanges is 70mm, and a metal gasket with the thickness of 5mm is arranged between the splayed blind plate and each flange, so that the distance between the two flanges reaches 80 mm.
Thus, the length of the screw rod 2 can be designed to be 50mm, the length of the first external thread 21 can be designed to be 25mm, and the length of the second external thread 22 can be designed to be 25 mm; the length of the first internal thread 11 of the first nut 1 is designed to be 25mm, the height of the first nut 1 is designed to be 30mm, and the height of the cone structure of the first nut 1 is 5 mm; the length of the second internal thread 31 of the second nut 3 is designed to be 25mm, the height of the second nut 3 is designed to be 30mm, and the height of the cone structure of the second nut 3 is 5 mm;
when the screw rod 2 is completely screwed into the first nut 1 and the second nut 3, the length of the flange expander is 70mm, the flange expander is convenient to carry, when the flange expander is needed to be used, the first nut 1 and the second nut 3 can be screwed out 5mm from the screw rod 2 respectively, the length of the flange expander is 80mm at the moment, the flange expander can be just clamped between two flanges, then the first nut 1 and the second nut 3 are rotated in opposite directions by using two wrenches, the length of the flange expander is continuously increased, and further the distance between the two flanges is increased, and the eight-character blind plate can be replaced and exchanged until the required distance is reached.
Through placing this flange expander that uses in the novel embodiment between the gap of two flanges for first nut 1 and first flange contact, the other end and the second flange contact of screw rod 2, in the process of first nut 1 from the first external screw thread 21 back-out of screw rod 2, the length of this flange expander increases, make the distance increase between first flange and the second flange, can change the eight characters blind plate that presss from both sides between two flanges this moment, so need not to engage professional company's operating personnel and use hydraulic pressure expander to increase the distance between two flanges, the cost of changing eight characters blind plate has been reduced.
The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A flange expander is characterized by comprising a first nut and a screw rod;
a first external thread is arranged at one end of the screw rod, a first internal thread is arranged in the first nut, and the first external thread is matched with the first internal thread;
one end of the first nut is in contact with the first flange, the other end of the screw is in contact with the second flange, and when the first nut is screwed out from the first external thread, the distance between the first flange and the second flange is increased.
2. The flange expander of claim 1, further comprising a second nut;
the other end of the screw rod is provided with a second external thread, a second internal thread is arranged in the second nut, the second external thread is matched with the second internal thread, and the rotating directions of the first external thread and the second external thread are opposite;
one end of the second nut is in contact with the second flange, and when the first nut is unscrewed from the first external thread and the second nut is unscrewed from the second external thread simultaneously, the distance between the first flange and the second flange is increased.
3. A flange expander according to claim 2 and wherein one end of said first nut and one end of said second nut are of a tapered configuration.
4. A flange expander according to claim 2 and wherein the first internal thread has a thread length greater than or equal to the thread length of the first external thread and the second internal thread has a thread length greater than or equal to the thread length of the second external thread.
5. A flange expander according to claim 4 and wherein the thread length of the first and second external threads is equal to half the length of the screw.
6. A flange expander according to claim 2 and wherein said first and second nuts are four or six sided nuts.
7. A flange expander according to claim 2 and wherein the outer surfaces of said first and second nuts are provided with non-slip threads.
8. A flange expander according to claim 1 and wherein the other end of said threaded rod is provided with a fixing block.
9. A flange expander according to claim 8 and wherein the cross-section of the anchor block is quadrilateral or hexagonal in shape.
10. A flange expander according to any one of claims 1 to 9, in which the material of the first nut, the screw and the second nut is carbon steel or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095322.3U CN205521138U (en) | 2016-01-29 | 2016-01-29 | Flange expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095322.3U CN205521138U (en) | 2016-01-29 | 2016-01-29 | Flange expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205521138U true CN205521138U (en) | 2016-08-31 |
Family
ID=56774438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620095322.3U Active CN205521138U (en) | 2016-01-29 | 2016-01-29 | Flange expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205521138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107087377A (en) * | 2017-04-28 | 2017-08-22 | 华为技术有限公司 | Heat abstractor, radiator, the method for electronic equipment and radiating control |
-
2016
- 2016-01-29 CN CN201620095322.3U patent/CN205521138U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107087377A (en) * | 2017-04-28 | 2017-08-22 | 华为技术有限公司 | Heat abstractor, radiator, the method for electronic equipment and radiating control |
| CN107087377B (en) * | 2017-04-28 | 2019-04-26 | 华为技术有限公司 | Cooling device, radiator, electronic device and method for controlling heat dissipation |
| US11432432B2 (en) | 2017-04-28 | 2022-08-30 | Huawei Technologies Co., Ltd. | Heat dissipation apparatus, heat dissipator, electronic device, and heat dissipation control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204997617U (en) | Major diameter compression inner ring for ship engine | |
| CN105599160B (en) | Adjustable V-shaped structure clamping and fixing device | |
| CN205521138U (en) | Flange expander | |
| CN106239364B (en) | A kind of processing tool of the thrust block pad suitable for thrust bearing | |
| CN208826448U (en) | Flange support | |
| CN203236368U (en) | Anti-deformation clamping device for automobile air valves | |
| CN204366859U (en) | Pipeline Flange Expander | |
| CN210909101U (en) | A positioning device for the production and processing of hardware parts | |
| CN210524649U (en) | Double-end-face stone grinding machine test piece clamp with adjustable shape and size | |
| CN104444347A (en) | Clamp base plate, clamp and mechanical arm | |
| CN207465080U (en) | A kind of slide calliper rule spanner | |
| CN105269497B (en) | Suitable for the general torque wrench of quality testing | |
| CN204035895U (en) | The quick detachable press plate mechanism of high-mechanic | |
| CN204486934U (en) | High precision elastic clamping tool | |
| CN204160160U (en) | Drive-type hydraulic torque wrench device | |
| CN213259198U (en) | Multi-angle universal joint wrench | |
| CN105057413A (en) | Slab bending spanner | |
| CN217965873U (en) | Five vice assembly fixture | |
| CN207723408U (en) | A kind of equipment processing clamping device | |
| CN105033700A (en) | Positioning tool for machining ball valve ball body | |
| CN2506397Y (en) | Gas welding universal wrench | |
| CN205184614U (en) | General torque wrench suitable for quality testing | |
| CN103737534A (en) | Threaded nail puller | |
| CN207522433U (en) | A kind of convenient fixture of the old bolt fastener of fast quick-detach | |
| CN206335519U (en) | A kind of restricted clearance nut handling instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: China National Petroleum Corp. Patentee after: CHINA PETROLEUM PIPELINE BUREAU Patentee after: CHINA PETROLEUM PIPELINE NO.2 ENGINEERING CO.,LTD. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee before: China National Petroleum Corp. Patentee before: CHINA PETROLEUM PIPELINE BUREAU Patentee before: China Petroleum Second Pipeline Construction Co. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170401 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: China National Petroleum Corp. Patentee after: China Petroleum Pipeline Engineering Co.,Ltd. Patentee after: CHINA PETROLEUM PIPELINE NO.2 ENGINEERING CO.,LTD. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee before: China National Petroleum Corp. Patentee before: CHINA PETROLEUM PIPELINE BUREAU Patentee before: CHINA PETROLEUM PIPELINE NO.2 ENGINEERING CO.,LTD. |