CN210347340U - Sealing equipment for internal pressure resistance test of multi-caliber plastic pipe - Google Patents
Sealing equipment for internal pressure resistance test of multi-caliber plastic pipe Download PDFInfo
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- CN210347340U CN210347340U CN201921215205.6U CN201921215205U CN210347340U CN 210347340 U CN210347340 U CN 210347340U CN 201921215205 U CN201921215205 U CN 201921215205U CN 210347340 U CN210347340 U CN 210347340U
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- end enclosure
- screw
- plastic pipe
- internal pressure
- sealing
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- 239000004033 plastic Substances 0.000 title claims abstract description 42
- 229920003023 plastic Polymers 0.000 title claims abstract description 42
- 238000007789 sealing Methods 0.000 title claims abstract description 41
- 238000012360 testing method Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000012812 general test Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
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Abstract
The utility model discloses a sealing device for multi-caliber plastic pipe internal pressure resistance test, which comprises a frame, a screw driving device and a sealing device, wherein the screw driving device comprises a power mechanism arranged at the top of the frame and a screw driven by the power mechanism, and the screw extends out towards the bottom of the frame; the sealing device comprises a lower end enclosure fixed at the bottom of the rack and an upper end enclosure arranged above the lower end enclosure, a pull rod is arranged between the upper end enclosure and the lower end enclosure for connection, the upper part of the upper end enclosure is connected with the tail end of the screw rod, and the upper part of the upper end enclosure is respectively provided with an exhaust hole and a water injection hole; the upper sealing head and the lower sealing head are respectively provided with a pressing flange which can be sleeved on the plastic pipe, and the upper sealing head and the lower sealing head are respectively provided with a flange hole matched with the pressing flange. Compared with the prior art, the utility model discloses the leakproofness is good when not only experimental, can effective reduce cost, reduces the amount of labour and save time, guarantees not taking off the pipe moreover in the pressurization in-process.
Description
Technical Field
The utility model relates to a plastics tubular product withstand voltage test detects technical field, concretely relates to a sealing equipment that is used for resistant interior pressure test of multi-aperture plastics tubular product.
Background
At present, the application of plastic pipes is very wide, and the most common plastic pipes are water feeding pipes and water discharging pipes. Among the physical and chemical indexes of plastic pipes, the internal pressure resistance test is one of the main indexes and is the most important necessary item in the detection indexes of the plastic pipes. According to the requirement of the internal pressure resistance test method for thermoplastic plastic pipes for fluid transportation (GB/T6111-2003), before the internal pressure resistance test is carried out, the two ends of the sample are firstly sealed and then pressurized. Generally, when an internal pressure resistance test is carried out, the plug is generally adopted for sealing, the plug with the diameter of less than 300mm is randomly provided by an equipment supplier, and the sealing effect is relatively ideal; the plug with the diameter larger than 300mm is purchased by an acquirer. In practice, we have found that plugs with a diameter greater than 300mm have two major drawbacks: 1. the price is high, a pair of plugs with the diameter of 400mm is more than ten thousand, and a pair of plugs with the diameter of 800mm is more than eighty thousand; 2. the workload is large, and two detection personnel are required to work for one to two hours when the multi-caliber plug is installed once; 3. the tightness is poor, after the multi-caliber plug is connected with the plastic pipe, the phenomenon that the pipe cannot bear high internal pressure is often caused in the pressurizing process, and finally the test fails.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned defect, the utility model aims at providing a sealing equipment for the resistant interior pressure test of multi-aperture plastic tubing, the leakproofness is good when not only experimental, can effective reduce cost, reduces the amount of labour and save time, guarantees not to take off the pipe moreover in the pressurization in-process.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a sealing device for an internal pressure resistance test of a multi-caliber plastic pipe comprises a rack, a screw driving device and a sealing device, wherein the screw driving device comprises a power mechanism arranged at the top of the rack and a screw driven by the power mechanism, and the screw extends out towards the bottom of the rack; the sealing device comprises a lower end enclosure fixed at the bottom of the rack and an upper end enclosure arranged above the lower end enclosure, a pull rod is arranged between the upper end enclosure and the lower end enclosure for connection, the upper part of the upper end enclosure is connected with the tail end of the screw rod, and the upper part of the upper end enclosure is respectively provided with an exhaust hole and a water injection hole; the upper end enclosure and the lower end enclosure are respectively provided with a pressing flange which can be sleeved on the plastic pipe, and the upper end enclosure and the lower end enclosure are respectively provided with a flange hole matched with the pressing flange; the upper seal head and the lower seal head are provided with a plurality of diameter notches of standard specifications on the surfaces, and the diameter notches correspond to the upper seal head and the lower seal head.
Furthermore, the power mechanism comprises a motor and a worm reducer connected with the motor, and the worm reducer drives the screw to rotate.
The compression flange is sleeved on the outer wall of the plastic pipe, and a sealing ring is additionally arranged when the compression flange is fixed with a flange hole of the upper end enclosure or the lower end enclosure.
The middle part of the rack is provided with a supporting plate, the surface of the supporting plate is provided with a screw sleeve, the inner wall of the screw sleeve is provided with a screw thread matched with the screw rod, and the screw rod is in threaded connection with the screw sleeve and passes through the supporting plate to be fixed with the upper end enclosure; during the test, the screw rod sleeve can be tightly pressed on the surface of the supporting plate through screwing.
The pull rod extends out of the upper end enclosure and is tightly pressed on the surface of the upper end enclosure through a fastener during an internal pressure resistance test.
The upper sealing head and the lower sealing head are provided with diameter notches with the sizes of 315mm, 355mm, 400mm, 450mm, 500mm, 560mm, 630mm, 710mm and 800 mm.
When the utility model is used, the two ends of the plastic pipe are respectively sleeved with the appropriate compression flanges, the sealing rings are additionally arranged, the bottom end of the plastic pipe is arranged on the notch grooves with the corresponding specification of the lower end socket, the flange holes of the compression flanges are aligned with the flange holes of the lower end socket and are screwed up by the fasteners, then starting a motor to enable the upper end enclosure to move downwards, controlling the falling speed to enable the upper end enclosure to be aligned with the plastic pipe and extend into the groove with the corresponding diameter of the upper end enclosure, enabling the pressing flange at the top end of the plastic pipe and the flange hole of the upper end enclosure to be aligned and fixed, meanwhile, the pull rod is also pressed by the fastening piece, water is injected from the water injection hole at the moment, air is discharged from the air exhaust hole, when the vent hole overflows, the vent hole is sealed, pressurization is started, a special device is used for pressurizing, the general test pressurization value is more than 20 times of the rated pressurization value of the pipe, and the pipe is kept for more than 100 hours after pressurization, so that the pipe meets the use requirement.
The technical proposal of the utility model is that the upper part of the upper end socket is provided with the water injection hole and the exhaust hole, which is convenient for discharging air when injecting water into the plastic pipe of the pipe; the motor is adopted to drive the upper end enclosure to move downwards, so that the labor capacity is reduced, and the time is saved; the upper end enclosure and the lower end enclosure are provided with a plurality of diameter notches according to the national standard requirement, so that the universal effect is achieved; the back of the upper end enclosure and the back of the lower end enclosure are rigidly connected, so that the pipe is prevented from axially falling off during pressurization; the circumference of the upper end enclosure and the lower end enclosure are connected by adopting a pull rod, so that the pipe is prevented from deviating during pressurization.
The utility model has the advantages that: the upper and lower end sockets are provided with a plurality of diameter notches according to the national standard requirements, and the universal effect is achieved in the internal pressure resistance test of the plastic pipe with the diameter larger than 300 mm; the vertical design is convenient for operation; the motor is adopted for driving, so that the labor capacity is reduced, and the time is saved; the back of the upper and lower sealing heads are rigidly connected, the circumference of the sealing head is connected by a screw rod, so that the sealing head is not pulled off when pressurized; the whole machine processing cost is not more than 2 ten thousand, and the test cost is greatly reduced; through hold-down flange and sealing washer, guarantee the leakproofness of plastics tubular product when experimental.
Drawings
The structure and features of the present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a perspective view of fig. 1.
Fig. 3 is a schematic view of the diameter grooving of the upper head or the lower head in the present invention.
In the attached drawings 1-3, 1 is a worm reducer, 2 is a motor, 3 is a frame, 4 is a water injection hole, 5 is a compression flange, 6 is a plastic pipe, 7 is a screw, 8 is a supporting plate, 9 is an exhaust hole, 10 is an upper end enclosure, 11 is a pull rod, 12 is a lower end enclosure, 13 is a flange hole, 14.800mm diameter notch groove, 15.710mm diameter notch groove, 16.630mm diameter notch groove, 17.560mm diameter notch groove, 18.500mm diameter notch groove, 19.450mm diameter notch groove, 20.400mm diameter notch groove, 21.355mm diameter notch groove, 22.315mm diameter notch groove, and 23 is a screw sleeve.
Detailed Description
Fig. 1-3 show an embodiment of the present invention, which discloses a sealing device for an internal pressure resistance test of a multi-caliber plastic pipe, comprising a frame 3, a screw driving device and a sealing device, wherein the screw driving device comprises a power mechanism arranged at the top of the frame 3 and a screw 7 driven by the power mechanism, the power mechanism comprises a motor 2 and a worm reducer 1 connected with the motor 2, the worm reducer 1 drives the screw 7 to rotate, and the screw 7 extends towards the bottom of the frame 3;
the sealing device comprises a lower end enclosure 12 fixed at the bottom of the rack 3 and an upper end enclosure 10 arranged above the lower end enclosure 12, a pull rod 11 is arranged between the upper end enclosure 10 and the lower end enclosure 12 for connection, the upper part of the upper end enclosure 10 is connected with the tail end of the screw 7, and the upper part of the upper end enclosure 10 is respectively provided with an exhaust hole 9 and a water injection hole 4; the upper end enclosure 10 and the lower end enclosure 12 are both provided with a compression flange 5 which can be sleeved on the plastic pipe, and the upper end enclosure 10 and the lower end enclosure 12 are both provided with flange holes 13 matched with the compression flange 5; the surfaces of the upper end enclosure 10 and the lower end enclosure 12 are provided with a plurality of diameter notches with standard specifications, and the diameter notches correspond to the upper end enclosure 10 and the lower end enclosure 12.
The clamp flange 5 is sleeved on the outer wall of the plastic pipe 6, a sealing ring is additionally arranged when the clamp flange 5 is fixed with a flange hole of the upper end enclosure 10 or the lower end enclosure 12, the diameters of inner holes of the clamp flange 5 can be made into a plurality according to needs in actual use and are used for meeting the sleeving connection of plastic pipes with a plurality of calibers, the outer diameter of the manufactured clamp flange 5 and the flange hole 13 are consistent with those of the upper end enclosure or the lower end enclosure, and only the inner hole changes according to needs.
The middle part of the frame 3 is provided with a supporting plate 8, the surface of the supporting plate 8 is provided with a screw sleeve 23, the inner wall of the screw sleeve 23 is provided with a thread matched with a screw 7, the screw 7 is connected with the screw sleeve 23 through the thread and passes through the supporting plate 8 to be connected with the upper end enclosure 10, in an actual test, when a motor drives the screw to press the upper end enclosure down to meet the sealing requirement, the screw sleeve is screwed at the moment to be tightly pressed on the surface of the supporting plate, the position of the screw is fixed, the pressure of the upper end enclosure on a plastic pipe is effectively kept unchanged, and therefore the sealing effect of the upper end enclosure and the lower end enclosure on the plastic pipe is kept unchanged.
The pull rod 11 extends out of the upper end enclosure 10 and is pressed on the surface of the upper end enclosure 10 through a fastener during an internal pressure resistance test.
14-22 in the attached figure 3 represent 315-:
therefore, the upper seal head and the lower seal head can be provided with diameter notches of 900 mm, 1000 mm, 1200 mm, 1400 mm, 1600 mm, 1800 mm and 2000mm as required, so that the internal pressure resistance test of the plastic pipe with larger caliber is met.
The embodiment of the utility model is characterized in that during the actual work, the two ends of the plastic pipe are respectively sleeved with the appropriate compression flanges, the sealing rings are additionally arranged, the bottom end of the plastic pipe is arranged on the groove of the lower end socket with the corresponding specification, the compression flanges are aligned with the flange holes of the lower end socket and are screwed by the fasteners, then the upper end socket is moved downwards by starting the motor, the falling speed is controlled, the upper end socket is aligned with the plastic pipe and extends into the groove of the upper end socket with the corresponding diameter, the compression flanges at the top end of the plastic pipe and the flange holes of the upper end socket are aligned and fixed, the upper part of the pull rod is compressed by the fasteners, water is injected from the water injection holes at the moment, air is discharged from the exhaust holes, when the exhaust holes overflow, the exhaust holes are sealed, the pressurization is started, the special equipment is used during the pressurization, the general test pressurization value is more than 20, the pipe meets the use requirement.
The above description is only for the preferred embodiment of the present invention, and the above specific embodiments are not intended to limit the present invention, and any decoration, modification or equivalent replacement made by those skilled in the art according to the above description all belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a sealing equipment that is used for resistant internal pressure test of multi-aperture plastic tubing which characterized in that: the screw driving device comprises a power mechanism arranged at the top of the frame and a screw driven by the power mechanism, and the screw extends out towards the bottom of the frame; the sealing device comprises a lower end enclosure fixed at the bottom of the rack and an upper end enclosure arranged above the lower end enclosure, a pull rod is arranged between the upper end enclosure and the lower end enclosure for connection, the upper part of the upper end enclosure is connected with the tail end of the screw rod, and the upper part of the upper end enclosure is respectively provided with an exhaust hole and a water injection hole; the upper end enclosure and the lower end enclosure are respectively provided with a pressing flange which can be sleeved on the plastic pipe, and the upper end enclosure and the lower end enclosure are respectively provided with a flange hole matched with the pressing flange; the upper seal head and the lower seal head are provided with a plurality of diameter notches of standard specifications on the surfaces, and the diameter notches correspond to the upper seal head and the lower seal head.
2. The sealing apparatus for internal pressure resistance test of multi-caliber plastic pipe according to claim 1, wherein: the power mechanism comprises a motor and a worm speed reducer connected with the motor, and the worm speed reducer drives the screw to rotate.
3. The sealing apparatus for internal pressure resistance test of multi-caliber plastic pipe according to claim 1, wherein: the compression flange is sleeved on the outer wall of the plastic pipe, and a sealing ring is additionally arranged when the compression flange is fixed with a flange hole of the upper end enclosure or the lower end enclosure.
4. The sealing apparatus for internal pressure resistance test of multi-caliber plastic pipe according to claim 1, wherein: the middle part of the rack is provided with a supporting plate, the surface of the supporting plate is provided with a screw sleeve, the inner wall of the screw sleeve is provided with a screw thread matched with the screw rod, and the screw rod is in threaded connection with the screw sleeve and passes through the supporting plate to be fixed with the upper end enclosure; during the test, the screw rod sleeve can be tightly pressed on the surface of the supporting plate through screwing.
5. The sealing apparatus for internal pressure resistance test of multi-caliber plastic pipe according to claim 1, wherein: the pull rod extends out of the upper end enclosure and is tightly pressed on the surface of the upper end enclosure through a fastener during an internal pressure resistance test.
6. The sealing apparatus for internal pressure resistance test of multi-caliber plastic pipe according to claim 1, wherein: the upper sealing head and the lower sealing head are provided with diameter notches with the sizes of 315mm, 355mm, 400mm, 450mm, 500mm, 560mm, 630mm, 710mm and 800 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921215205.6U CN210347340U (en) | 2019-07-31 | 2019-07-31 | Sealing equipment for internal pressure resistance test of multi-caliber plastic pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921215205.6U CN210347340U (en) | 2019-07-31 | 2019-07-31 | Sealing equipment for internal pressure resistance test of multi-caliber plastic pipe |
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| Publication Number | Publication Date |
|---|---|
| CN210347340U true CN210347340U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921215205.6U Active CN210347340U (en) | 2019-07-31 | 2019-07-31 | Sealing equipment for internal pressure resistance test of multi-caliber plastic pipe |
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| CN (1) | CN210347340U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376069A (en) * | 2019-07-31 | 2019-10-25 | 河南智安工程检测有限公司 | A kind of water-tight equipment for the test of multiple caliber plastic expects pipe material internal pressure-resistant |
-
2019
- 2019-07-31 CN CN201921215205.6U patent/CN210347340U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376069A (en) * | 2019-07-31 | 2019-10-25 | 河南智安工程检测有限公司 | A kind of water-tight equipment for the test of multiple caliber plastic expects pipe material internal pressure-resistant |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Gang Inventor after: Jin Dan Inventor after: Xu Ming Inventor after: Zheng Qiuxi Inventor after: Li Haishan Inventor after: Yin Xian Inventor after: Wang Guo Inventor after: Gu Yuanyuan Inventor after: Yang Yanling Inventor after: Zhang Lili Inventor after: Zhu Liandu Inventor after: Liu Zheng Inventor after: Chen Zhijie Inventor after: Li Li Inventor after: Zhu Kang Inventor after: Li Dong Inventor before: Huang Gang Inventor before: Jin Dan Inventor before: Xu Ming Inventor before: Zheng Qiuxi Inventor before: Li Haishan Inventor before: Yin Xian Inventor before: Wang Guo Inventor before: Gu Yuanyuan Inventor before: Yang Yanling Inventor before: Zhang Lili Inventor before: Zhu Liandu Inventor before: Liu Zheng Inventor before: Chen Zhijie Inventor before: Li Li Inventor before: Zhu Kang Inventor before: Li Dong |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 473000 Lvlou, Baihe West Road, Wancheng District, Nanyang City, Henan Province Patentee after: Zhongjian Zhi'an (Henan) Engineering Testing Co.,Ltd. Address before: 473000 Lvlou, Baihe West Road, Wancheng District, Nanyang City, Henan Province Patentee before: HENAN ZHIAN ENGINEERING DETECTION Co.,Ltd. |