PE pipe pressure test device

Abstract

The utility model discloses a PE pipe pressure testing device, which relates to the technical field of PE pipe index detection, and comprises an exhaust interface, a fastening limiting screw rod, a fixed outer frame, a sealing fixed plate ring and a limiting fixed sheet, a water injection interface is arranged on the right side of the exhaust interface, the water injection interface and the water injection interface are arranged on a sealing fixed plate, and the limiting fixed sheet is arranged on the right side of the exhaust interface. The device comprises a sealing fixing plate, a fixing outer frame is arranged below the sealing fixing plate, a fastening limiting screw rod is installed on the fixing outer frame, and a limiting fixing ring is installed on the inner side of the fastening limiting screw rod. Circular corrugations are arranged on the sealing fixing plate, so that the sealing fixing plate can be attached to PE pipes of various sizes, the sealing performance and the equipment adaptability are improved, the upper part and the lower part can be connected through the fastening limiting screw rod, the all-around protection effect is provided, and the PE pipes are prevented from bursting in time; and the limiting fixing sheets at the upper and lower parts of the equipment can also control the pipe body.

Description

Technical Field

[0001] The utility model relates to the technical field of PE pipe index detection, in particular to a PE pipe pressure testing device. Background Art

[0002] PE resin is made by polymerizing the monomer ethylene. Due to different polymerization reaction conditions such as pressure and temperature during polymerization, resins of different densities can be obtained, so there are high-density polyethylene, medium-density polyethylene and low-density polyethylene. When processing different types of PE pipes, different resin brands are selected according to their application conditions, and the requirements for extruders and molds are also different. PE pipes are divided into five grades: PE32, PE40, PE63, PE80, and PE100, and the materials used for gas pipes and water pipes are mainly PE80 and PE100. my country does not classify special materials for polyethylene pipes, which makes it difficult for domestic polyethylene gas pipe and water pipe manufacturers to select raw materials, and also brings considerable hidden dangers to the use of polyethylene pipes. Therefore, PE pressure testing is very important, but the existing PE pipe pressure testing equipment has many shortcomings, such as:

[0003] Authorization announcement number: CN202305341U describes a PE pipe pressure testing device, which includes a base, an upper seat and a PE pipe. The PE pipe is fixedly installed between the base and the upper seat and is sealed by the base and the upper seat. A water injection pipe and an exhaust pipe are provided on the upper seat. The water injection pipe and the exhaust pipe are connected to the PE pipe. Since the device installs the water pipe inside through the base and the upper seat, when the water pipe pressure is too high, water will penetrate into the pipe wall and the friction force will accumulate and decrease after the pipe wall contacts the water, causing it to fall off, and the sudden spraying of high-pressure water will cause safety problems. Utility Model Content

[0004] The purpose of the utility model is to provide a PE pipe pressure testing device to solve the problem that the equipment on the existing market proposed in the above background technology installs the water pipe inside through the base and the upper seat. When the water pipe pressure is too large, water will penetrate into the pipe wall. After the pipe wall contacts the water, the friction force will accumulate and decrease, causing it to fall off, and the sudden spraying of high-pressure water will cause safety problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PE pipe pressure test device, comprising an exhaust interface, a fastening limit screw, a fixed outer frame, a sealing fixed plate ring and a limit fixed sheet;

[0006] A water injection interface is installed on the right side of the exhaust interface, and the water injection interface and the water injection interface are installed on a sealing fixed plate, a fixed outer frame is arranged below the sealing fixed plate, a fastening limit screw is installed on the fixed outer frame, a limit fixing ring is installed on the inner side of the fastening limit screw, a limit fixing plate is arranged on the limit fixing ring, a fixed pressure screw is installed above the sealing fixed plate, the fixed pressure screw is installed above the load-bearing fixed screw, a limited bottom frame is arranged below the load-bearing fixed screw, a load-bearing fixed bottom plate is arranged below the limited bottom frame, and a supporting pad is installed below the load-bearing fixed bottom plate.

[0007] As a preferred technical solution of the utility model, the exhaust interface is fixedly connected to the sealing fixing plate, and the exhaust interface passes through the sealing fixing plate. A water injection interface is fixedly connected to the right side of the sealing fixing plate at a position symmetrical to the midline of the sealing fixing plate. The water injection interface has the same size as the exhaust interface. The bottom surface below the sealing fixing plate is made of a soft rubber material and is provided with circular corrugations.

[0008] By adopting the above technical solution, the equipment sets a water injection interface and an exhaust interface to use water injection as a medium to test the pressure resistance of the PE pipe. By setting a circular corrugation on the sealing fixing plate, it can ensure that the sealing fixing plate fits PE pipes of various sizes to improve the sealing performance and equipment adaptability.

[0009] As a preferred technical solution of the utility model, the sealing fixing plate is a square flat plate structure, a fixed outer frame is fixedly connected below the sealing fixing plate, a fastening and limiting screw is rotatably connected to the fixed outer frame on the line, and there are four fastening and limiting screws arranged perpendicularly to each other;

[0010] By adopting the above technical solution, the device can adjust the size of the PE pipe being tested internally by tightening the limit screw, thereby improving the compatibility of the equipment. The tightening limit screw adopts a threaded structure, which is simple in structure, easy to maintain and install, and can greatly save manufacturing costs.

[0011] As a preferred technical solution of the utility model, the fastening limit screw is in a T-shaped structure, and the inner side of the fastening limit screw is rotatably connected to the limit fixing ring, the inner side of the limit fixing ring is fixedly connected to the limit fixing plate, and the limit fixing plate is a quarter-circular arc block;

[0012] By adopting the above technical solution, the device can effectively fix the PE pipe through the limiting fixing plate, and the limiting fixing plate is a quarter-circular arc block, which can ensure uniform force when used in collaboration and improve the data accuracy of the equipment test.

[0013] As a preferred technical solution of the utility model, the fixed outer frame and the sealing fixed plate are penetrated by a load-bearing fixed screw, the load-bearing fixed screw is slidably connected with the fixed outer frame and the sealing fixed plate, and there are four load-bearing fixed screws respectively installed on the four diagonals of the fixed outer frame, and the fixed pressure screw above the sealing fixed plate is rotatably connected with the load-bearing fixed screw;

[0014] By adopting the above technical solution, the device can provide a downward pressure for the PE pipe by fixing the pressurizing screw and the fixed outer frame, and the fixed pressurizing screw is used in a manual rotation manner, which is simple to operate and can reduce the technical level requirements of the user.

[0015] As an optimal technical solution of the utility model, the load-bearing fixing screw is fixedly connected to the diagonal line of the limiting bottom frame, the limiting bottom frame is the same size as the fixed outer frame and is square in shape, the limiting bottom frame is also equipped with a fastening limiting screw and has the same internal structure as the fixed outer frame, a load-bearing fixing base plate is fixedly connected below the limiting bottom frame, a support pad is fixedly connected below the load-bearing fixed base plate, and the support pad is a circular rubber sheet with a thickness of half that of the support pad.

[0016] By adopting the above technical solution, the device can provide stable support for the device through the support pads set under the limiting bottom frame, and tightening the limiting screws can connect the upper and lower parts and provide all-round protection.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The equipment uses water injection as a medium to test the compressive strength of PE pipes by setting water injection interfaces and exhaust interfaces. By setting circular corrugations on the sealing fixing plate, it can ensure that the sealing fixing plate fits PE pipes of various sizes and improves the sealing performance and equipment adaptability.

[0019] 2. The equipment can provide stable support for the equipment through the support pads set under the limit bottom frame. Tightening the limit screws can connect the upper and lower parts and provide all-round protection. Even if the PE pipe bursts, the limit fixing plates at the upper and lower parts of the equipment will also control the pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a left-side perspective structural diagram of the utility model;

[0021] Figure 2 This is a front structural schematic diagram of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model when viewed from the left side;

[0023] Figure 4This is a left-view stereoscopic structural diagram of the limiting bottom frame of the utility model;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the sealing fixing plate of the utility model when viewed from the bottom on the left side;

[0025] Figure 6 It is a schematic diagram of the top view structure of the sealing fixing plate of the utility model.

[0026] In the figure: 1. Exhaust interface; 2. Tightening limit screw; 3. Fixing outer frame; 4. Sealing fixing plate; 5. Fixing pressurizing screw; 6. Water injection interface; 7. Limiting bottom frame; 8. Load-bearing fixed bottom plate; 9. Support pad; 10. Load-bearing fixed screw; 11. Limiting fixing ring; 12. Limiting fixing plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-6 , the technical scheme of the utility model: a PE pipe pressure test device, including an exhaust interface 1, a fastening limit screw 2, a fixed outer frame 3, a sealing fixed plate 4, a fixed pressurizing screw 5, a water injection interface 6, a limit bottom frame 7, a bearing fixed bottom plate 8, a support pad 9, a bearing fixed screw 10, a limit fixing ring 11 and a limit fixing sheet 12;

[0029] A water injection interface 6 is installed on the right side of the exhaust interface 1. The exhaust interface 1 is fixedly connected to the sealing fixing plate 4, and the exhaust interface 1 penetrates the sealing fixing plate 4. A water injection interface 6 is fixedly connected to the sealing fixing plate 4 at a symmetrical position on the right side of the sealing fixing plate 4. The water injection interface 6 is the same size as the exhaust interface 1. The bottom surface below the sealing fixing plate 4 is made of rubber-like soft material and is provided with circular corrugations. The equipment uses water injection as a medium to test the compressive capacity of the PE pipe by setting the water injection interface 6 and the exhaust interface 1. By setting circular corrugations on the sealing fixing plate 4, it can be ensured that the sealing fixing plate 4 is compatible with various sizes. The PE pipe fits well to improve the sealing and equipment adaptability. The water injection interface 6 is installed on the sealing fixing plate 4. The sealing fixing plate 4 is a square flat plate structure. A fixed outer frame 3 is fixedly connected below the sealing fixing plate 4. A fastening limit screw 2 is rotatably connected on the center line of the fixed outer frame 3. There are four fastening limit screws 2 that are vertically arranged to each other. The device can adjust the size of the PE pipe being tested inside by fastening the limit screws 2, thereby improving the compatibility of the device. The fastening limit screw 2 adopts a threaded structure, which is simple in structure, easy to maintain and install, and can greatly save manufacturing costs.

[0030] A fixed outer frame 3 is arranged below the sealing fixed plate 4, and a fastening limit screw 2 is installed on the fixed outer frame 3. The fastening limit screw 2 is in a T-shaped structure, and the inner side of the fastening limit screw 2 is rotatably connected to the limit fixing ring 11, and the inner side of the limit fixing ring 11 is fixedly connected with a limit fixing piece 12, and the limit fixing piece 12 is a quarter-circular arc block. The device can play a good fixing role on the PE pipe through the limit fixing piece 12, and the limit fixing piece 12 is a quarter-circular arc block, which can ensure uniform force when used in collaboration, and improve the data accuracy of the equipment test. The limit fixing ring 11 is installed on the inner side of the fastening limit screw 2, and the limit fixing ring 11 A limited fixing sheet 12 is provided on the upper side, a fixed pressurizing screw 5 is installed above the sealing fixing plate 4, the fixed outer frame 3 and the sealing fixing plate 4 are penetrated by a bearing fixing screw 10, the bearing fixing screw 10 is slidably connected with the fixed outer frame 3 and the sealing fixing plate 4, and there are four bearing fixing screws 10 respectively installed on the four diagonals of the fixed outer frame 3, and the fixed pressurizing screw 5 above the sealing fixing plate 4 is rotatably connected with the bearing fixing screw 10. The device can provide a downward pressure for the PE pipe through the fixed pressurizing screw 5 and the fixed outer frame 3, and the fixed pressurizing screw 5 is used in a manually rotating manner, and its operation is simple and can reduce the technical level requirements of the user;

[0031] The fixed pressure screw 5 is installed above the load-bearing fixed screw 10, and a limited bottom frame 7 is arranged below the load-bearing fixed screw 10, and a load-bearing fixed bottom plate 8 is arranged below the limited bottom frame 7, and a supporting pad 9 is installed below the load-bearing fixed bottom plate 8. The load-bearing fixed screw 10 is fixedly connected to the diagonal of the limited bottom frame 7. The limited bottom frame 7 is the same size as the fixed outer frame 3 and is square opposite. The limited bottom frame 7 is also equipped with a fastening limit screw 2 with the same internal structure as the fixed outer frame 3. A load-bearing fixed bottom plate 8 is fixedly connected below the limited bottom frame 7, and a supporting pad 9 is fixedly connected below the load-bearing fixed bottom plate 8. The supporting pad 9 is a circular rubber sheet with a thickness of half that of the supporting pad 9. The device can provide stable support for the device through the supporting pad 9 arranged below the limited bottom frame 7, and the fastening limit screw 2 can connect the upper and lower parts and provide an all-round protective effect.

[0032] Working principle: When using this PE pipe pressure test device, first place the device in a suitable position to ensure that the support pad 9 and the ground are fully stressed, then cut a PE pipe of suitable length and place it in the center of the load-bearing fixed bottom plate 8 of the limit bottom frame 7, then fit the PE pipe to the corrugation of the load-bearing fixed bottom plate 8, then screw the four fastening limit screws 2 into the limit bottom frame 7, the fastening limit screws 2 will push the limit fixing plate 12 through the limit fixing ring 11 to fix the PE pipe, after fixing it to the appropriate position, fix the outer frame 3 and the sealing fixing plate 4 The bearing fixing screw 10 contacts the top surface of the PE pipe, finds the appropriate corrugated position of the sealing fixing plate 4, and then tightens the fixing pressurizing screw 5 and the fastening limiting screw 2 of the fixing outer frame 3, so that the entire PE pipe is fixed, and then the test instrument is connected to inject water through the water injection interface 6, and the air in the pipe will be discharged from the exhaust interface 1, and then the exhaust interface 1 is closed and opened for pressurization. When the pipeline reaches the critical value, even if it bursts, since both ends of the entire pipeline are fixed and clamped by the fixing outer frame 3 and the limiting bottom frame 7, there will be no problem of separation or splashing of parts.

[0033] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PE pipe pressure test device, comprising an exhaust port (1), a fastening limit screw (2), a fixed outer frame (3), a sealing fixed plate (4) and a limit fixed sheet (12), characterized in that: A water injection interface (6) is installed on the right side of the exhaust interface (1), and the water injection interface (6) and the water injection interface (6) are installed on the sealing fixed plate (4). A fixed outer frame (3) is arranged below the sealing fixed plate (4), and a fastening limit screw (2) is installed on the fixed outer frame (3). A limit fixing ring (11) is installed on the inner side of the fastening limit screw (2), and a limit fixing plate (12) is arranged on the limit fixing ring (11). A fixed pressure screw (5) is installed above the sealing fixed plate (4), and the fixed pressure screw (5) is installed above the bearing fixed screw (10). A limit bottom frame (7) is arranged below the bearing fixed screw (10), and a bearing fixed bottom plate (8) is arranged below the limit bottom frame (7), and a support pad (9) is installed below the bearing fixed bottom plate (8).

2. A PE pipe pressure test device according to claim 1, characterized in that: The exhaust interface (1) is fixedly connected to the sealing fixing plate (4), and the exhaust interface (1) passes through the sealing fixing plate (4). A water injection interface (6) is fixedly connected to the right side of the sealing fixing plate (4) at a position symmetrical to the center line of the sealing fixing plate (4). The water injection interface (6) has the same size as the exhaust interface (1). The bottom surface below the sealing fixing plate (4) is made of a soft rubber material and is provided with circular corrugations.

3. A PE pipe pressure test device according to claim 2, characterized in that: The sealing fixing plate (4) is a square flat plate structure, a fixed outer frame (3) is fixedly connected below the sealing fixing plate (4), a fastening and limiting screw rod (2) is rotatably connected on the center line of the fixed outer frame (3), and there are four fastening and limiting screw rods (2) arranged perpendicular to each other.

4. A PE pipe pressure test device according to claim 3, characterized in that: The tightening limit screw (2) is in a T-shaped structure, and the inner side of the tightening limit screw (2) is rotatably connected to the limit fixing ring (11), and the inner side of the limit fixing ring (11) is fixedly connected to a limit fixing plate (12), and the limit fixing plate (12) is a quarter-circular arc block.

5. A PE pipe pressure testing device according to claim 4, characterized in that: The fixed outer frame (3) and the sealing fixed plate (4) are penetrated by a bearing fixed screw (10), and the bearing fixed screw (10) is slidably connected to the fixed outer frame (3) and the sealing fixed plate (4). There are four bearing fixed screws (10) respectively installed on four diagonals of the fixed outer frame (3), and a fixed pressure screw (5) above the sealing fixed plate (4) is rotatably connected to the bearing fixed screw (10).

6. A PE pipe pressure test device according to claim 5, characterized in that: The bearing fixing screw (10) is fixedly connected to the diagonal line of the limiting bottom frame (7); the limiting bottom frame (7) and the fixed outer frame (3) are of the same size and are square and opposite in shape; the limiting bottom frame (7) is also installed with a fastening limiting screw (2) and has the same internal structure as the fixed outer frame (3); a bearing fixing bottom plate (8) is fixedly connected below the limiting bottom frame (7); a supporting pad (9) is fixedly connected below the bearing fixing bottom plate (8); the supporting pad (9) is a circular rubber sheet with a thickness half that of the supporting pad (9).

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