CN205479946U - A hold stifled frock for heavy -calibre return bend auto -lock hydraulical pressure test apparatus - Google Patents
A hold stifled frock for heavy -calibre return bend auto -lock hydraulical pressure test apparatus Download PDFInfo
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- CN205479946U CN205479946U CN201620261248.8U CN201620261248U CN205479946U CN 205479946 U CN205479946 U CN 205479946U CN 201620261248 U CN201620261248 U CN 201620261248U CN 205479946 U CN205479946 U CN 205479946U
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- stifled
- water
- pipe fitting
- eccentric lock
- holding
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 239000004429 Calibre Substances 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 230000002787 reinforcement Effects 0.000 claims description 8
- 239000003351 stiffener Substances 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 208000037656 Respiratory Sounds Diseases 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002706 hydrostatic effect Effects 0.000 abstract 4
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 16
- 229910001141 Ductile iron Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 206010059875 Device ineffective Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a hold stifled frock for heavy -calibre return bend auto -lock hydraulical pressure test apparatus, it utilizes special hydraulic press to carry out the water pressure detection to elbow pipe fitting to have overcome prior art, elbow pipe fitting arc pipe shaft very easily leads to the fact the problem of deformation and crackle, the characteristic is equipped with the articulated seat of eccentric lock holding stifled socket section outer fringe top, be equipped with the hydrostatic test water inlet on holding stifled head, be equipped with annular deep floor on holding stifled head, in using, articulated eccentric lock in the articulated seat of off -centre lock, use with the stifled frock cooperation of inserting of elbow pipe fitting socket end installation, be connected with the water pump with high -pressure water pipe and water intaking valve on the hydrostatic test water inlet and carry out hydrostatic test, and utilize water pressure to make eccentric lock sealed with elbow pipe fitting locking, the beneficial effects are that simple structure, has the commonality under the same condition of elbow pipe fitting nominal diameter, it can carry out hydrostatic test to need not special hydraulic press, it receives extrusion deformation crack problem to have stopped elbow pipe fitting, can practice thrift simultaneously the investment cost of the large -scale special hydraulic press of preparation.
Description
Technical field
This utility model belongs to device for testing hydraulic pressure of pipe fitting technical field, holds stifled frock particularly to a kind of for big diameter elbow self-locking water test unit.
Background technology
For the nodular cast iron pipe fittings of pressure-bearing by ISO2531:2009 international standard and GB/T13295 2013 national standard requirement, tubing products must carry out hydraulic pressure detection before dispatching from the factory totally, and nominal diameter is 1Mpa more than the nodular cast iron pipe fittings minimum test pressure of more than DN700 specification.nullIn prior art，The pipe fitting water pressure test of different size shape is completed by dedicated water press，And special hydraulic press is to bend pipe tools class (11.25 ° in prior art，22.5°，45°，90 °) pipe fitting detection have bigger limitation，During the detection of particularly more than DN1400 specification heavy caliber socket joint bend pipe tools hydraulic pressure, end face seal is the most difficult，It is located on the lip block of slip chassis bottom during the detection of bend pipe tools class pipe fitting，Bell and spigot end face is installed the flat rubber cushion sealed，Utilize dedicated water press that bend pipe tools is carried out hydraulic pressure detection，There is problems of，Bend pipe tools arc pipe shaft easily causes deformation and crackle，And，Bend pipe tools diameter is the biggest，Required sealing thrust is the biggest，The probability of bend pipe tools deformation is the biggest，In addition，Bell and spigot end face is installed the flat rubber cushion sealed，When carrying out large caliber bend water pressure test of pipe fitting，Also easy compressive deformation，The seam causing bend pipe tools leaks，Once leak，Band setting-out can tear flat rubber cushion，In addition，Bend pipe tools diameter is the biggest，Required sealing thrust is the biggest，As nominal diameter DN2600，Bellmouth maximum inner diameter is 2830mm，Cylinder thrust is up to 6287KN，So large-scale hydraulic press investment of the gantry frame structure of high thrust is huge，General factory seldom uses.
The patent of invention of Patent No. ZL201110369773.3 discloses a kind of heavy-caliber elbow pipe fitting water pressure test seal device, this patent of invention is to arrange bushing pipe in pipe fitting, all outward equipped with plug set on each ring flange of bushing pipe, by bushing pipe and being tightly connected that plug overlaps, the bearing area making caliber reduces, thus reduce cylinder thrust, preferably solve the bend pipe tools existing for heavy caliber cast tube bend pipe tools hydraulic pressure test and be easily deformed the problem that the seam with bend pipe tools occurs leakage.But, this patent of invention all adds bushing pipe due to needs at whole inside pipe fitting, described bushing pipe is arc-shaped tubular-shaped structures, if the outer wall of bushing pipe is provided with arterial highway reinforcement, by bushing pipe and being tightly connected that plug overlaps, it is achieved the closure to two bellmouths in bend pipe tools, therefore intensity and requirement on machining accuracy to bushing pipe are higher, once bushing pipe compressive deformation, just loses sealing function, causes whole device ineffective；And, bushing pipe is that the two ends mouth of pipe by bushing pipe sets built-in ring flange respectively with being tightly connected of plug set, the outer card of each ring flange is provided with seal groove, in the seal groove of each ring flange, sealing ring is installed, the end that connects of plug set is provided with built-in annulus connecting plate, the outer ring surface of annulus connecting plate is provided with seal groove, plug set is to use bolt to constitute installation with the ring flange of bushing pipe at annulus connecting plate, seal groove on plug set annulus connecting plate is to coordinate installation with the sealing ring on bushing pipe ring flange, once there is leakage in the sealing ring on ring flange, sealing effectiveness will be affected, also result in whole failure of apparatus；Additionally, this patent of invention uses bushing pipe described in technical scheme not have versatility with plug set, different size, difform bend pipe tools need to configure bushing pipe and the plug set of dimension, shape, and investment is very big, and production cost is the highest；And, device described in this patent of invention must pass through hydraulic pressure test, does not has hydraulic press to work.
nullThe utility model of Application No. 201220310168.9 discloses the pipe fitting pressure testing chock plug of a kind of good airproof performance，It includes inserting blocks up、Hold stifled，It is characterized in that inserting to block being provided with water inlet、Air vent and the bulb the rim of a bowl being connected with pressure testing machine oil cylinder，Hold to block and be provided with the inlet opening connected with pipe fitting，Insert stifled and hold stifled between by T-shaped cushion rubber mortise-tenon joint，And form die cavity，But，This utility model insert stifled and hold stifled between by T-shaped cushion rubber mortise-tenon joint，Be insert stifled and hold stifled between form die cavity，During use，Insert the bulb the rim of a bowl blocked to be connected with pressure testing machine oil cylinder，Under oil cylinder effect，Hold stifled by sealing gasket and pipe fitting port sealing，By water inlet, inside pipe fitting water filling is pressurizeed，Air in pipe fitting is discharged by air vent，Current quickly fill with die cavity under the effect of the pressure，When current run into slotting stifled inwall, one downward power of formation acts on and holds stifled inwall，Make to hold that to get lodged in the effect seal performance of downward force more preferable，And the increasing along with pressure test pressure，Hold and stifled press tighter and tighter thus realize fully sealing，But，Understand after comprehensive analysis，This utility model actually utilizes pressure testing chock plug to substitute the pressing plate on hydraulic press，Utilize chock plug to port sealing，Chock plug must compress port sealing rubber cushion by hydraulic press，Do not have hydraulic press can not carry out the water pressure test，So，This utility model must utilize hydraulic press just can complete test，Particularly，This utility model is the conjunction completing port sealing of the counteracting force utilizing chock plug cavity water under high pressure and hydraulic press oil cylinder pressure at right angle，The pressure making a concerted effort to produce have to be larger than the detection pressure that standard specifies，Therefore the risk of elbow class pipe fitting extrusion does not reduce，In other words，This utility model does not solve the problem of flat rubber cushion compressive deformation between elbow class pipe fitting compressive deformation problem and pressure testing chock plug and pipe fitting.
Summary of the invention
Technical problem to be solved in the utility model is, overcome weak point of the prior art, for solving elbow class pipe fitting problem of compressive deformation when carrying out the water pressure test, also can carry out the water pressure test in the case of solving bell and spigot seals during the water pressure test reliability simultaneously and not using dedicated water press provides a kind of and holds stifled frock for big diameter elbow self-locking water test unit.
This utility model holds the technical scheme that stifled frock uses and includes holding stifled faucet section and hold and block head, holds stifled faucet section outer rim top be provided with eccentric lock hinged seat described, be machined with pin shaft hole, be provided with water pressure test water inlet holding to block on head on eccentric lock hinged seat.
Described eccentric lock hinged seat is arranged in pairs, stifled faucet section outer rim top is held at least provided with 8 pairs of eccentric lock hinged seats described, blocking a upper end be provided with ring stiffener plate and eccentric lock hinged seat reinforcement holding, each eccentric lock hinged seat is all connected with ring stiffener plate by eccentric lock hinged seat reinforcement.
Described hold to block be additionally provided with hanger on head.
Compared with prior art, the beneficial effects of the utility model are:
(1) this utility model utilizes socket pipe member self seal feature, have only to that spheroidal graphite cast-iron of the prior art is held stifled improving and can form this utility model, thus simple in construction, the bellmouth of bend pipe tools seals the seal form all using country and international standard to specify, and utilize hinged eccentric lock in every a pair eccentric lock hinged seat to be hooked on bend pipe tools bellmouth boss, self-locking seal can be realized with bend pipe tools, in the case of bend pipe tools nominal diameter is identical, there is versatility, unrelated with the change of the shaped angles of bend pipe tools, thus install the most very convenient with dismounting；
(2) this utility model changes bend pipe tools end face seal on hydraulic press into socket joint and seals, the most safer reliably, owing to being designed with water pressure test water inlet on head holding to block, when carrying out the water pressure test, high-pressure water pipe and water intaking valve are connected with water pump, pressure gauge design is on water pump, therefore this utility model can realize the sealing effectiveness good to holding stifled socket, can realize again holding stifled frock and bend pipe tools self-locking, the water pressure test can be carried out without dedicated water press, thoroughly stop bend pipe tools extrusion crack problem, the investment cost making large-scale dedicated water press can be saved simultaneously；
(3) this utility model is applicable to the nominal diameter water pressure test more than the nodular cast iron pipe fittings of more than DN700 specification, it is not only applicable to 11.25 °, 22.5 °, 45 °, 90 ° of bend pipe tools series products, when nominal diameter is more than DN1400 to DN2600, in the case of hydraulic press scarce capacity, the device that all bell socket pipe fittings all can use this utility model to provide carries out the water pressure test.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the top view of Fig. 1,
Fig. 3 is application schematic diagram of the present utility model.
In figure:
1. water pressure test water inlet,
2. pin shaft hole,
3. hold stifled faucet section,
4. hold and block head,
5. eccentric lock hinged seat,
6. ring stiffener plate,
7. hanger,
8. eccentric lock hinged seat reinforcement,
9. bend pipe tools,
10. insert stifled frock.
Detailed description of the invention
nullAs shown in Fig. 1～Fig. 2，This utility model holds stifled frock and stifled of the prior art holding is being improved realization，Include and hold stifled faucet section 3 and holding and block 4，In order to realize holding the sealing effectiveness that stifled socket is good，Can realize again holding stifled frock and bend pipe tools self-locking，The water pressure test can be carried out without dedicated water press，Stifled faucet section 3 outer rim top is held at least provided with 8 pairs of eccentric lock hinged seats 5 described，Each eccentric lock hinged seat 5 is machined with pin shaft hole 2，It is provided with water pressure test water inlet 1 on 4 holding to block，In order to provide strength support to eccentric lock hinged seat 5，Block 4 upper end be provided with ring stiffener plate 6 and eccentric lock hinged seat reinforcement 8 holding，Each eccentric lock hinged seat 5 is all connected with ring stiffener plate 6 by eccentric lock hinged seat reinforcement 8，In order to adapt to the nominal diameter water pressure test more than the nodular cast iron pipe fittings of more than DN700 specification，Particularly DN1400～the DN2600 specification heavy caliber socket joint bend pipe tools water pressure test，Described hold to block be additionally provided with hanger 7 on 4，To facilitate lifting；It is for the ease of the most hinged eccentric lock that described eccentric lock hinged seat 5 is arranged in pairs.
This utility model holds stifled frock and uses lost foam process casting global formation.
nullAs shown in Figure 3，During use，By hinge eccentric lock in every a pair eccentric lock hinged seat 5，Inserting inserting in the stifled bellmouth bellmouth with bend pipe tools 9 of stifled frock 10, O-ring seal is installed，Female end at bend pipe tools 9 installs this utility model and by eccentric lock and bend pipe tools 9 lock sealing，Install in bend pipe tools 9 socket end and insert stifled frock 10，The socket flange bolt fastening inserting stifled flange and bend pipe tools 8 inserting stifled frock 10 realizes interlocking seal，Then it is connected with water pump with high-pressure water pipe and water intaking valve on stifled frock 9 water inlet holding，Pressure gauge is located on water pump，Open again and hold the water intaking valve blocking a water pressure test water inlet 1 on 4 and the air bleeding valve of water pressure test air vent inserting stifled frock 10，Close the drain valve of the water pressure test discharge outlet inserting stifled frock 10，Then water pump is started，Water filling in bend pipe tools 9，The water pressure test can be carried out，In process of the test，Under test pressure effect，This utility model realizes self-locking seal by the bellmouth boss of hinged eccentric latch hook Yu bend pipe tools 9.
Claims (3)
1. one kind for big diameter elbow self-locking water test unit hold stifled frock, including holding stifled faucet section (3) and holding and block head (4), it is characterized in that, it is provided with eccentric lock hinged seat (5) on described stifled faucet section (3) outer rim top of holding, eccentric lock hinged seat (5) is machined with pin shaft hole (2), is provided with water pressure test water inlet (1) on head (4) holding to block.
A kind of hold stifled frock for big diameter elbow self-locking water test unit, it is characterized in that, described eccentric lock hinged seat (5) is arranged in pairs, on described stifled faucet section (3) outer rim top of holding at least provided with 8 pairs of eccentric lock hinged seats (5), blocking head (4) upper end be provided with ring stiffener plate (6) and eccentric lock hinged seat reinforcement (8) holding, each eccentric lock hinged seat (5) is all connected with ring stiffener plate (6) by eccentric lock hinged seat reinforcement (8).
A kind of hold stifled frock for big diameter elbow self-locking water test unit, it is characterised in that described hold to block be additionally provided with hanger (7) on head (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620261248.8U CN205479946U (en) | 2016-03-31 | 2016-03-31 | A hold stifled frock for heavy -calibre return bend auto -lock hydraulical pressure test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620261248.8U CN205479946U (en) | 2016-03-31 | 2016-03-31 | A hold stifled frock for heavy -calibre return bend auto -lock hydraulical pressure test apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN205479946U true CN205479946U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620261248.8U Expired - Fee Related CN205479946U (en) | 2016-03-31 | 2016-03-31 | A hold stifled frock for heavy -calibre return bend auto -lock hydraulical pressure test apparatus |
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| Country | Link |
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| CN (1) | CN205479946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116678722A (en) * | 2023-06-14 | 2023-09-01 | 湖北三江航天红阳机电有限公司 | Annular component hydrostatic test tool and hydrostatic test method |
-
2016
- 2016-03-31 CN CN201620261248.8U patent/CN205479946U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116678722A (en) * | 2023-06-14 | 2023-09-01 | 湖北三江航天红阳机电有限公司 | Annular component hydrostatic test tool and hydrostatic test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 115007, No. 7, main street, Beihai New District, Yingkou, Liaoning, Gaizhou Patentee after: Liaoning metal forming Polytron Technologies Inc Address before: 115200, No. 7, main street, Beihai New District, Gaizhou, Liaoning, Yingkou Patentee before: LIAONING LOVE CASTING INDUSTRY CO., LTD. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20200331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |