CN112504855A - Large-diameter PE pipe external pressure test device - Google Patents

Large-diameter PE pipe external pressure test device Download PDF

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Publication number
CN112504855A
CN112504855A CN202011402749.0A CN202011402749A CN112504855A CN 112504855 A CN112504855 A CN 112504855A CN 202011402749 A CN202011402749 A CN 202011402749A CN 112504855 A CN112504855 A CN 112504855A
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CN
China
Prior art keywords
pipe
water
water supply
accommodating
pressing
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.)
Pending
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CN202011402749.0A
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Chinese (zh)
Inventor
张文龙
傅生英
何伟丰
郦萍
陈鸿梅
陈心一
杨正伟
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.)
Zhejiang Maple Leaf Pipe Industry Polytron Technologies Inc
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Zhejiang Maple Leaf Pipe Industry Polytron Technologies Inc
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 Zhejiang Maple Leaf Pipe Industry Polytron Technologies Inc filed Critical Zhejiang Maple Leaf Pipe Industry Polytron Technologies Inc
Priority to CN202011402749.0A priority Critical patent/CN112504855A/en
Publication of CN112504855A publication Critical patent/CN112504855A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12—Pressure testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0003—Steady
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0019—Compressive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/0042—Pneumatic or hydraulic means
    • G01N2203/0048—Hydraulic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/025—Geometry of the test
    • G01N2203/0258—Non axial, i.e. the forces not being applied along an axis of symmetry of the specimen
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0262—Shape of the specimen
    • G01N2203/0274—Tubular or ring-shaped specimens
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/067—Parameter measured for estimating the property
    • G01N2203/0682—Spatial dimension, e.g. length, area, angle

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention relates to the technical field of PE pipes, in particular to a large-diameter PE pipe external pressure test device which comprises a base, a water supply mechanism, an accommodating mechanism, a covering mechanism and a pressure applying mechanism, wherein the water supply mechanism is positioned above the base and used for accommodating detection water, the accommodating mechanism is positioned above the base, the covering mechanism is positioned above the accommodating mechanism, and the pressure applying mechanism is used for increasing the internal pressure of the accommodating mechanism. The invention utilizes the reciprocating motion of the piston sheet in the pressure applying pipe to continuously pump the detection water in the water supply tank into the accommodating tank, thereby accurately and effectively increasing the pressure in the accommodating tank and further improving the detection effect; the PE pipe fixing device completes the position fixing of the PE pipe through the containing part and the connecting part together, can adapt to PE pipes with different calibers, and improves the universality of the PE pipe fixing device.

Description

Large-diameter PE pipe external pressure test device
Technical Field
The invention relates to the technical field of PE pipes, in particular to a large-caliber PE pipe external pressure test device.
Background
The PE pipe is a pipe made of PE resin material, the PE resin is polymerized from monomer ethylene, and resins of different densities can be obtained due to different polymerization conditions such as pressure, temperature, etc. during polymerization, and thus the PE pipe is divided into high density polyethylene, medium density polyethylene and low density polyethylene. When processing different types of PE pipes, different resin grades are selected according to different conditions, and requirements of an extruder and a grinding tool are different.
Compared with a steel pipe, the PE pipe has a simple construction process and certain flexibility and corrosion resistance, so that the PE pipe is quite widely applied. At present, before the PE pipe leaves a factory, in order to detect whether the quality of the PE pipe is qualified, a compression test needs to be carried out on the PE pipe, for example, the invention with the publication number of CN108982230A discloses a PE pipe compression test device, which introduces detection water into a tank body through a high-pressure water pump, so that the pressure inside the tank body is increased. Firstly, after the interior of the tank body is filled with detection water, the high-pressure water pump is difficult to continuously increase the pressure inside the tank body; secondly, the high-pressure water pump cannot adjust the water pressure, namely the high-pressure water pump cannot accurately control the pressure inside the tank body, so that the technical scheme is difficult to achieve the effect of detecting the pressure resistance of the PE pipe.
Disclosure of Invention
The invention aims to provide a large-diameter PE pipe external pressure test device which is used for accurately increasing the pressure outside a PE pipe so as to detect the pressure resistance of the PE pipe.
The above object of the present invention is achieved by the following technical solutions:
a large-diameter PE pipe external pressure test device comprises a base, a water supply mechanism, an accommodating mechanism, a covering mechanism and a pressure applying mechanism, wherein the water supply mechanism is positioned above the base and used for accommodating detection water;
the water supply mechanism comprises a water supply tank and a water inlet penetrating through the top of the water supply tank, a high-pressure water pump is arranged inside the water supply tank, a water outlet pipe is connected to the water outlet end of the high-pressure water pump, and one end, far away from the high-pressure water pump, of the water outlet pipe penetrates through the side wall of the water supply tank and extends to the outer side of the water supply tank;
the accommodating mechanism comprises an accommodating box and a cover body covering the top surface of the accommodating box, a PE pipe is arranged on the inner side of the accommodating box, a water inlet pipe penetrates through one side of the bottom of the accommodating box, and the water inlet pipe is connected with a water outlet pipe;
the cover mechanism comprises a mounting plate fixedly connected to the base, a propelling cylinder is arranged on the top surface of the mounting plate, and a piston rod of the propelling cylinder vertically penetrates through the mounting plate downwards and is connected with the cover body;
the pressure applying mechanism comprises a plurality of pressure applying pipes, a water supply pipe, a first water inlet pipe and a second water inlet pipe are arranged on the top surface of each pressure applying pipe, the water supply pipe is communicated with the containing box, the first water inlet pipe and the second water inlet pipe are communicated with the water supply box, and a piston sheet used for pushing detection water inside the pressure applying pipes into the containing box is arranged inside each pressure applying pipe.
Preferably, the water supply pipe is internally provided with a first check valve for allowing only the sensing water to flow from the pressurizing pipe into the inside of the receiving box, and the first water feed pipe is internally provided with a second check valve for allowing only the sensing water to flow from the water supply tank into the inside of the pressurizing pipe.
Preferably, the pressure mechanism further comprises a bearing transverse plate, connecting rods are uniformly arranged on one side of the bearing transverse plate opposite to the base, and one ends of the connecting rods, far away from the bearing transverse plate, penetrate through the pressure pipe and are connected with the corresponding piston plates.
Preferably, the installation department has set firmly in outside one side of base, the cylinder of exerting pressure has set firmly on the installation department, the piston rod of the cylinder of exerting pressure runs through the installation department and with accept the diaphragm rigid coupling.
Preferably, the inside both sides that hold the case all are equipped with and hold the portion, the both ends of PE pipe are placed respectively in two portions that hold, the top surface joint that holds the portion is equipped with connecting portion, the underrun of connecting portion has the pressing piece through pressing spring elastic connection, the pressing piece all laminates on the top surface of PE pipe.
Preferably, the bottom surface of the cover body is provided with a first sealing ring along the circumferential direction of the cover body, the inner side of the top of the containing box is provided with a second sealing ring matched with the first sealing ring, and the first sealing ring is attached to the second sealing ring.
Preferably, the seal groove has been seted up to the top surface that holds the case, the inboard laminating of seal groove is equipped with the sealing film, the bottom surface of lid be equipped with seal groove assorted third sealing ring, the embedding of third sealing ring is inside and with the laminating of sealing film in the seal groove.
Preferably, the mechanism is closed to the lid still including two poles, the pole setting all runs through on the mounting panel, and the bottom of pole setting all is connected with the lid.
Compared with the prior art, the invention provides a large-caliber PE pipe external pressure test device, which has the following beneficial effects:
1. the invention utilizes the reciprocating motion of the piston sheet in the pressure applying pipe to continuously pump the detection water in the water supply tank into the accommodating tank, thereby accurately and effectively increasing the pressure in the accommodating tank and further improving the detection effect;
2. the PE pipe fixing device completes the position fixing of the PE pipe through the containing part and the connecting part together, can adapt to the PE pipes with different calibers, and improves the universality of the PE pipe fixing device;
3. the lifting of the cover body is controlled by the covering mechanism, so that the PE pipe is convenient to put in and take out, the working time is saved, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the structure of the present invention;
FIG. 3 is a schematic view of the containment mechanism of the present invention;
FIG. 4 is a schematic view of the structure of the container according to the present invention;
FIG. 5 is a schematic view of a pressing mechanism of the present invention;
fig. 6 is an enlarged corresponding view of a portion a in fig. 3.
In the figure: 10. a base; 20. a water supply mechanism; 201. a water supply tank; 202. a water inlet; 203. a high pressure water pump; 204. a water outlet pipe; 30. an accommodating mechanism; 301. an accommodating box; 302. a cover body; 303. a containing part; 304. a connecting portion; 305. pressing the sheet; 306. a pressing spring; 307. a water inlet pipe; 308. a first seal ring; 309. a second seal ring; 310. sealing the rubber sheet; 311. a third seal ring; 40. a covering mechanism; 401. mounting a plate; 402. propelling the cylinder; 403. erecting a rod; 50. a pressure applying mechanism; 501. pressing a pipe; 502. a water supply pipe; 503. a first water inlet pipe; 504. a second water inlet pipe; 505. a piston plate; 506. a connecting rod; 507. carrying the transverse plate; 508. an installation part; 509. a pressure cylinder; 510. a first check valve; 511. a second one-way valve; 6. a PE pipe; 601. and (5) blocking the film.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): referring to fig. 1, a large-diameter PE pipe external pressure test apparatus includes a base 10, a water supply mechanism 20 located above the base 10 and used for containing water for detection, an accommodating mechanism 30 located above the base 10, a covering mechanism 40 located above the accommodating mechanism 30, and a pressure applying mechanism 50 used for increasing the internal pressure of the accommodating mechanism 30; wherein the water supply mechanism 20 is used for supplying water to the inside of the accommodating mechanism 30, and the pressurizing mechanism 50 is located inside the base 10 and is used for pressurizing the inside of the accommodating mechanism 30.
Referring to fig. 2 and 3, the water supply mechanism 20 includes a water supply tank 201 and a water inlet 202 penetrating through the top of the water supply tank 201, a high pressure water pump 203 is disposed inside the water supply tank 201, a water outlet pipe 204 is connected to a water outlet end of the high pressure water pump 203, and one end of the water outlet pipe 204, which is far away from the high pressure water pump 203, penetrates through a side wall of the water supply tank 201 and extends to the outside of the water supply tank 201; the accommodating mechanism 30 comprises an accommodating box 301 and a cover body 302 covering the top surface of the accommodating box 301, the inner side of the accommodating box 301 is provided with a PE pipe 6, one side of the bottom of the accommodating box 301 is provided with a water inlet pipe 307 in a penetrating way, and the water inlet pipe 307 is connected with the water outlet pipe 204; the high-pressure pump 203 can discharge the detection water in the water supply tank 201 into the water outlet pipe 204, and then enter the storage tank 301 through the water outlet pipe 204 and the water inlet pipe 307. The covering mechanism 40 comprises a mounting plate 401 fixedly connected to the base 10, a propelling cylinder 402 is arranged on the top surface of the mounting plate 401, and a piston rod of the propelling cylinder 402 vertically penetrates through the mounting plate 401 downwards and is connected with the cover body 302; the covering mechanism 40 further comprises two upright posts 403, the upright posts 403 penetrate through the mounting plate 401, and the bottom ends of the upright posts 403 are connected with the cover body 302; wherein, the propulsion cylinder 402 is used for controlling the lifting of the cover body 302 so as to realize the closing and the opening of the accommodating box 301, and the upright rod 403 is used for limiting the position of the cover body 302 in the vertical direction, thereby improving the stability in the lifting process.
Referring to fig. 2 and 5, the pressing mechanism 50 includes a plurality of pressing pipes 501, a water supply pipe 502, a first water inlet pipe 503 and a second water inlet pipe 504 are disposed on the top surface of the pressing pipes 501, the water supply pipe 502 is communicated with the accommodating box 301, the first water inlet pipe 503 and the second water inlet pipe 504 are both communicated with the water supply box 201, and a piston plate 505 for pushing the detection water inside the pressing pipes 501 into the accommodating box 301 is disposed inside the pressing pipes 501; the water supply pipe 502, the first water inlet pipe 503 and the second water inlet pipe 504 are all integrated with the pressure pipe 501 into a whole, wherein the top end of the water supply pipe 502 is fixedly connected with the bottom surface of the accommodating box 301, and the top ends of the first water inlet pipe 503 and the second water inlet pipe 504 are fixedly connected with the bottom surface of the water supply box 201. The inside of the water supply pipe 502 is provided with a first check valve 510 allowing only the sensing water to flow from the pressurizing pipe 501 into the inside of the receiving tank 301, the inside of the first water feed pipe 503 is provided with a second check valve 511 allowing only the sensing water to flow from the water supply tank 201 into the inside of the pressurizing pipe 501, and the piston plate 505 is located between the first water feed pipe 503 and the second water feed pipe 504. The pressing mechanism 50 further comprises a receiving transverse plate 507, a connecting rod 506 is uniformly arranged on one side of the receiving transverse plate 507 opposite to the base 10, and one end of the connecting rod 506 far away from the receiving transverse plate 507 penetrates through the pressing pipe 501 and is connected with the corresponding piston sheet 505; the outer side of the base 10 is fixedly provided with a mounting part 508, the mounting part 508 is fixedly provided with a pressing cylinder 509, and a piston rod of the pressing cylinder 509 penetrates through the mounting part 508 and is fixedly connected with the receiving transverse plate 507, so that the movement of the piston sheet 505 can be indirectly controlled by the pressing cylinder 509, and the detection water in the pressing pipe 501 is pushed into the accommodating box 301 by the reciprocating motion of the piston sheet 505.
Referring to fig. 3, 4 and 6, the accommodating box 301 is provided at two sides thereof with accommodating parts 303, two ends of the PE tube 6 are respectively placed on the two accommodating parts 303, the top surface of the accommodating parts 303 is clamped with the connecting part 304, the bottom surface of the connecting part 304 is elastically connected with the pressing piece 305 through the pressing spring 306, the pressing piece 305 is attached to the top surface of the PE tube 6, so as to determine the position of the PE tube 6, and it is worth mentioning that the inner sides of the PE tube 6 are provided with the plugging films 601 for preventing the detection water from flowing into the inner side of the PE tube 6. The bottom surface of lid 302 is equipped with first sealing ring 308 along the girth direction of lid 302, and the top inboard of holding case 301 is equipped with the second sealing ring 309 with first sealing ring 308 assorted, and first sealing ring 308 laminates with second sealing ring 309 mutually, through the laminating of first sealing ring 308 with second sealing ring 309, can strengthen the leakproofness between holding case 301 and the lid 302. The seal groove has been seted up to the top surface that holds case 301, and the inboard laminating of seal groove is equipped with sealed film 310, and the bottom surface of lid 302 is equipped with seal groove assorted third sealing ring 311, and the embedding of third sealing ring 311 is inside and with the laminating of sealed film 310 in the seal groove, through the laminating of third sealing ring 311 and sealed film 310, can further strengthen the leakproofness that holds between case 301 and the lid 302.
The working principle is as follows: in the using process of the invention, firstly, the PE pipe 6 is put on a specific position in the containing box 301, then the cover body 302 is closed, the high-pressure water pump 203 is started, and the water for detection in the water supply box 201 is filled into the containing box 301 by the high-pressure water pump 203. Secondly, the pressurizing cylinder 509 is used for driving the piston plate 505 to reciprocate between the first water inlet pipe 503 and the second water inlet pipe 504, when the piston plate 505 retreats, the detection water in the water supply tank 201 flows out of the first water inlet pipe 503 into the pressurizing pipe 501, and when the piston plate 505 advances, due to the arrangement of the first check valve 510 and the second check valve 511, the detection water in the pressurizing pipe 501 automatically flows into the accommodating tank 301, and the pressure in the accommodating tank 301 is further increased. After the pressure inside the containing box 301 is increased to a certain degree, the containing box is stood for several hours, then the cover body 302 is opened, and the deformation condition of the PE pipe 6 is observed for detecting the compression resistance of the PE pipe 6.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a heavy-calibre PE outside of tubes pressure test device which characterized in that: the device comprises a base (10), a water supply mechanism (20) which is positioned above the base (10) and is used for containing water for detection, an accommodating mechanism (30) which is positioned above the base (10), a covering mechanism (40) which is positioned above the accommodating mechanism (30), and a pressure applying mechanism (50) which is used for increasing the internal pressure of the accommodating mechanism (30);
the water supply mechanism (20) comprises a water supply tank (201) and a water inlet (202) penetrating through the top of the water supply tank (201), a high-pressure water pump (203) is arranged inside the water supply tank (201), a water outlet pipe (204) is connected to the water outlet end of the high-pressure water pump (203), and one end, far away from the high-pressure water pump (203), of the water outlet pipe (204) penetrates through the side wall of the water supply tank (201) and extends to the outer side of the water supply tank (201);
the accommodating mechanism (30) comprises an accommodating box (301) and a cover body (302) covering the top surface of the accommodating box (301), a PE pipe (6) is arranged on the inner side of the accommodating box (301), a water inlet pipe (307) penetrates through one side of the bottom of the accommodating box (301), and the water inlet pipe (307) is connected with a water outlet pipe (204);
the cover closing mechanism (40) comprises a mounting plate (401) fixedly connected to the base (10), a propelling cylinder (402) is arranged on the top surface of the mounting plate (401), and a piston rod of the propelling cylinder (402) vertically penetrates through the mounting plate (401) downwards and is connected with the cover body (302);
the pressing mechanism (50) comprises a plurality of pressing pipes (501), a water supply pipe (502), a first water inlet pipe (503) and a second water inlet pipe (504) are arranged on the top surface of each pressing pipe (501), the water supply pipe (502) is communicated with the containing box (301), the first water inlet pipe (503) and the second water inlet pipe (504) are communicated with the water supply box (201), and piston sheets (505) used for pushing detection water inside the pressing pipes (501) into the containing box (301) are arranged inside the pressing pipes (501).
2. The large-caliber PE pipe external pressure test device according to claim 1, wherein: the water supply pipe (502) is provided inside with a first check valve (510) that allows only the detection water to flow from the pressurizing pipe (501) into the inside of the housing tank (301), and the first water inlet pipe (503) is provided inside with a second check valve (511) that allows only the detection water to flow from the water supply tank (201) into the pressurizing pipe (501).
3. The large-caliber PE pipe external pressure test device according to claim 1, wherein: the pressing mechanism (50) further comprises a bearing transverse plate (507), connecting rods (506) are uniformly arranged on one side, opposite to the base (10), of the bearing transverse plate (507), and one ends, far away from the bearing transverse plate (507), of the connecting rods (506) penetrate through the pressing pipe (501) and are connected with corresponding piston sheets (505).
4. The large-caliber PE pipe external pressure test device according to claim 3, wherein: the outside one side of base (10) sets firmly installation department (508), set firmly on installation department (508) and exert pressure cylinder (509), the piston rod of exerting pressure cylinder (509) runs through installation department (508) and with accept diaphragm (507) rigid coupling.
5. The large-caliber PE pipe external pressure test device according to claim 1, wherein: the inside both sides of holding case (301) all are equipped with and hold portion (303), the both ends of PE pipe (6) are placed respectively on two portions of holding portion (303), the top surface joint that holds portion (303) is equipped with connecting portion (304), the underrun of connecting portion (304) has pressing piece (305) through pressing spring (306) elastic connection, pressing piece (305) all laminate on the top surface of PE pipe (6).
6. The large-caliber PE pipe external pressure test device according to claim 1, wherein: the bottom surface of the cover body (302) is provided with a first sealing ring (308) along the perimeter direction of the cover body (302), the inner side of the top of the containing box (301) is provided with a second sealing ring (309) matched with the first sealing ring (308), and the first sealing ring (308) is attached to the second sealing ring (309).
7. The large-caliber PE pipe external pressure test device according to claim 1, wherein: the seal groove has been seted up to the top surface that holds case (301), the inboard laminating of seal groove is equipped with sealed film (310), the bottom surface of lid (302) be equipped with seal groove assorted third sealing ring (311), third sealing ring (311) embedding is inside and with sealed film (310) laminating in the seal groove.
8. The large-caliber PE pipe external pressure test device according to claim 1, wherein: the cover mechanism (40) further comprises two vertical rods (403), the vertical rods (403) penetrate through the mounting plate (401), and the bottom ends of the vertical rods (403) are connected with the cover body (302).
CN202011402749.0A 2020-12-02 2020-12-02 Large-diameter PE pipe external pressure test device Pending CN112504855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011402749.0A CN112504855A (en) 2020-12-02 2020-12-02 Large-diameter PE pipe external pressure test device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011402749.0A CN112504855A (en) 2020-12-02 2020-12-02 Large-diameter PE pipe external pressure test device

Publications (1)

Publication Number Publication Date
CN112504855A true CN112504855A (en) 2021-03-16

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CN202011402749.0A Pending CN112504855A (en) 2020-12-02 2020-12-02 Large-diameter PE pipe external pressure test device

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108982230A (en) * 2018-08-13 2018-12-11 英立（江苏）机电有限公司 A kind of PE pipe external pressure test device
CN111397816A (en) * 2020-05-06 2020-07-10 山东万吉塑胶有限公司 PE valve air tightness test device
CN111504796A (en) * 2020-04-29 2020-08-07 李俊 Local compressive property detection device for pressure vessel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108982230A (en) * 2018-08-13 2018-12-11 英立（江苏）机电有限公司 A kind of PE pipe external pressure test device
CN111504796A (en) * 2020-04-29 2020-08-07 李俊 Local compressive property detection device for pressure vessel
CN111397816A (en) * 2020-05-06 2020-07-10 山东万吉塑胶有限公司 PE valve air tightness test device

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