UPVC pipe hardness detection device

Abstract

The utility model discloses UPVC pipeline hardness detection device, include: workstation, elevating support elevating support is placed in the top of workstation, install pressure sensor no. 2 between elevating support and workstation top, the utility model has the beneficial effect is: the device integrates UPVC pipeline's hardness detection, leakproofness detection and drop hammer experiment etc. Variety of detection function, in different detection project, each component can be combined and adjusted flexibly, elevating support adopts four and workstation sliding connection's metal pole structure, and adjustable installation two limit plates in the top, through the rotation biaxial screw rod just can conveniently adjust the limit plate spacing, to adapt to the UPVC pipeline of different size, in the hardness detection, through pressure sensor no. 2 real -time observation pressure value change, can accurately record the pressure maximum value when UPVC pipeline breakage, namely compression resistance limit.

Description

Technical Field

[0001] This utility model relates to the field of UPVC pipe hardness testing technology, specifically to a UPVC pipe hardness testing device. Background Technology

[0002] UPVC stands for "unplasticized polyvinyl chloride," meaning that no plasticizers are added during the production process, making it harder and more rigid than ordinary PVC. UPVC pipes are a common type of plastic pipe widely used in construction, water supply and drainage, power cable protection, and sewage treatment. UPVC pipes require hardness testing. Existing hardness testing equipment is relatively limited in function, judging hardness performance solely by pressing. While hardness is one aspect of material properties, for UPVC pipes, in addition to hardness, sealing and impact resistance also need to be considered. Existing equipment cannot achieve multiple functions in one machine, reducing its flexibility. Utility Model Content

[0003] The purpose of this invention is to provide a UPVC pipe hardness testing device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a UPVC pipe hardness testing device, comprising:

[0005] Workbench;

[0006] A lifting frame is positioned on top of the worktable, and a pressure sensor is installed between the lifting frame and the top of the worktable.

[0007] The equipment box is placed on top of the workbench. Lifting slide rods are fixed to both sides inside the equipment box. Lifting crossbeams are slidably connected to the outside of the lifting slide rods. Pressure blocks are fixed to the bottom of the lifting crossbeams for pipe hardness testing and sealing testing.

[0008] Two suspension rods are used for the drop hammer test. The suspension rods are raised and lowered outside the lifting slide rod. The middle of the suspension rod is fixed with a hook that can be detachably connected to the pressure block.

[0009] Preferably, the top of the workbench is slidably connected with multiple limiting slide rods, one end of each limiting slide rod is fixedly connected to the lifting frame, the bottom of the second pressure sensor is fixedly connected to the workbench, and two limiting plates are adjustablely installed on the top of the lifting frame.

[0010] Preferably, a jack is fixedly connected inside the workbench to separate the lifting frame from the pressure sensor during the drop hammer test, and a protective cover is detachably installed on the top of the workbench and outside the lifting frame.

[0011] Preferably, the equipment box is provided with a door on one side, and an observation window is provided in the middle of the door. Two lead screw linear modules are vertically fixed inside the equipment box, and the moving slide of the lead screw linear module is fixedly connected to the lifting slide.

[0012] Preferably, an air pump is fixedly connected to the top of the lifting slide bar, and a solenoid valve is fixedly connected to the output end of the air pump. A through hole is opened in the middle of the pressure block, and the output end of the solenoid valve is connected to the through hole. A pressure sensor is installed inside the through hole.

[0013] Preferably, the lifting slide rod is slidably connected to a slider on its outer side and below the pressure block, and the two suspension rods are rotatably installed between the two sliders. The middle part of each suspension rod is provided with a semi-circular groove.

[0014] Preferably, two telescopic electromagnets are symmetrically fixed to the top of the pressure block for limiting the position of the hook.

[0015] Compared with existing technologies, the advantages of this invention are as follows: The device integrates multiple testing functions, including hardness testing, sealing testing, and drop hammer testing of UPVC pipes; the components can be flexibly combined and adjusted for different testing items; the lifting frame adopts a structure of four metal rods slidably connected to the worktable, and two limit plates can be adjusted and installed on the top. The distance between the limit plates can be easily adjusted by rotating the bidirectional screw to accommodate UPVC pipes of different sizes. In hardness testing, pressure sensor two allows for real-time observation of pressure changes, accurately recording the maximum pressure value when the UPVC pipe breaks, i.e., the compressive strength limit; in sealing testing, pressure sensor one is installed in the through hole in the middle of the pressure block, which can accurately monitor internal pressure changes in the pipe and accurately determine whether there is a leak, providing accurate data for pipe quality assessment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the telescopic electromagnet of this utility model;

[0018] Figure 3 This is a schematic diagram of the positional structure of the limiting plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the pressure sensor of this utility model;

[0020] Figure 5 This is a schematic diagram of the position and structure of the jack of this utility model.

[0021] In the diagram: 1. Workbench; 2. Equipment box; 3. Box door; 4. Lifting slide bar; 5. Lead screw linear module; 6. Lifting crossbeam; 7. Air pump; 8. Solenoid valve; 9. Pressure block; 10. Telescopic electromagnet; 11. Pressure sensor one; 12. Slider; 13. Suspension rod; 14. Hook; 15. Lifting frame; 16. Limit slide bar; 17. Pressure sensor two; 18. Jack; 19. Protective cover; 20. Limit plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , 2 As shown in Figures 3, 4, and 5, this utility model provides a technical solution: a UPVC pipe hardness testing device, comprising: a workbench 1; a lifting frame 15 raised and lowered on the top of the workbench 1, with a pressure sensor 17 installed between the lifting frame 15 and the top of the workbench 1; an equipment box 2 placed on the top of the workbench 1, with lifting slide rods 4 fixedly connected to both sides inside the equipment box 2, and a lifting crossbeam 6 slidably connected to the outside of the lifting slide rods 4, with a pressure block 9 fixedly connected to the bottom of the lifting crossbeam 6, used for pipe hardness testing and sealing testing; and two suspension rods 13 used for drop hammer testing, with the suspension rods 13 raised and lowered on the outside of the lifting slide rods 4, and a hook 14 fixedly connected to the pressure block 9 in the middle of the suspension rod 13.

[0024] It should be noted that this embodiment includes a controller and a corresponding operation panel. The lifting frame 15 includes four metal rods slidably connected to the worktable 1. Metal plates are fixed to the top and bottom of each metal rod. When testing the hardness of the UPVC pipe, the UPVC pipe is placed on top of the lifting frame 15, and the pressure block 9 is used to compress the UPVC pipe downwards. The pressure sensor 17 is used to observe the change in its value. During the downward pressure, the value of the pressure sensor 17 continuously increases. When the UPVC pipe breaks, its value decreases. The maximum pressure value of the pressure sensor 17 is its compressive strength limit. When it is necessary to seal the UPVC pipe, the position of the lifting frame 15 is fixed, and a sealing gasket is placed on top of it. The UPVC pipe is placed vertically on top of the sealing gasket, and the pressure block 9 is pressed tightly against the top of the UPVC pipe. Pressure is applied to the inside of the pressure block 9 through the through hole in the middle. The sealing performance is determined by observing the internal pressure after the pressure is stopped. The two suspension rods 13 are rotated together and fixed with screws. They are connected to the pressure block 9 via hook 14. The experimental hammer is placed at the bottom of the suspension rod 13 and lifted by the lifting beam 6 and the pressure block 9. By separating the pressure block 9 from the suspension rod 13, the hammer strikes the UPVC pipe downwards, thus performing a drop hammer test.

[0025] In one embodiment, multiple limiting slide rods 16 are slidably connected to the top of the workbench 1. One end of the limiting slide rod 16 is fixedly connected to the lifting frame 15. The bottom of the pressure sensor 17 is fixedly connected to the workbench 1. Two limiting plates 20 are adjustablely installed on the top of the lifting frame 15. A door 3 is rotatably installed on one side of the equipment box 2. A door lock is provided on the outside of the door 3. An observation window is opened in the middle of the door 3. The door 3 is closed during various experiments to prevent the pipes from flying out after breakage. Two lead screw linear modules 5 are vertically fixed inside the equipment box 2. The moving slide of the lead screw linear module 5 is fixedly connected to the lifting slide rod 4.

[0026] It should be noted that a PID controller is provided in this embodiment to control the movement of the two linear screw modules 5. The lifting frame 15 is symmetrically slidably connected to two triangular limiting plates 20. A bidirectional screw is rotatably connected to the top of the lifting frame 15. The bidirectional screw meshes with the threaded hole at one end of the limiting plate 20. The spacing of the limiting plates 20 is adjusted by rotating the bidirectional screw, and the UPVC pipe is placed between the limiting plates 20. The linear screw module 5 drives the lifting beam 6 to move downward along the lifting slide bar 4. The lifting slide bar 4 drives the pressure block 9 to squeeze the UPVC pipe downward. The UPVC pipe squeezes the pressure sensor 17 through the lifting frame 15. The pressure value change and the peak pressure are observed on the display.

[0027] In one embodiment, an air pump 7 is fixedly connected to the top of the lifting slide bar 4, and an electromagnetic valve 8 is fixedly connected to the output end of the air pump 7. A through hole is opened in the middle of the pressure block 9, and the output end of the electromagnetic valve 8 is connected to the through hole. A pressure sensor 11 is installed inside the through hole.

[0028] It should be noted that, in this embodiment, when the pipeline is tested for sealing, the pipeline is sealed between the pressure block 9 and the lifting frame 15 by compression. The pipeline is compressed by the air pump 7 and the through hole. After pressurization, the through hole is blocked by the solenoid valve 8. The pressure sensor 11 inside the pipeline pressure block 9 changes pressure. When the pressure decreases, it indicates that there is a leak.

[0029] In one embodiment, a slider 12 is slidably connected to the outside of the lifting slide bar 4 and below the pressure block 9. Two suspension rods 13 are rotatably installed between the two sliders 12. A semi-circular groove is opened in the middle of each suspension rod 13. Two telescopic electromagnets 10 are symmetrically fixed to the top of the pressure block 9 for limiting the hook 14. A jack 18 is fixed inside the workbench 1 for separating the lifting frame 15 from the pressure sensor 17 during the drop hammer experiment. A protective cover 19 is detachably installed on the top of the workbench 1 and outside the lifting frame 15.

[0030] It should be noted that during the drop hammer test in this embodiment, the lifting frame 15 is lifted from the bottom by the jack 18, separating the lifting frame 15 from the pressure sensor 17, and the protective cover 19 is raised. The protective cover 19 is then fixed to the lifting frame 15 from the side by bolts. The pipe is placed on the top of the lifting frame 15, and then the two suspension rods 13 are rotated together and fixedly connected by bolts. At this time, the two semi-circular grooves form a complete circular hole. The top of the test hammer passes through the circular hole and is fixed by bolts. The hook 14 is hung on the end of the telescopic electromagnet 10, thereby lifting the suspension rod 13 by the lifting beam 6. By controlling the telescopic electromagnet 10 to retract, the hammer drives the suspension rod 13 to strike downward along the lifting slide bar 4, thereby achieving the impact resistance performance of the pipeline.

[0031] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

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

Claims

1. A UPVC pipe hardness testing device, characterized in that: include: Workbench (1); A lifting frame (15) is raised and lowered on the top of the workbench (1), and a pressure sensor (17) is installed between the lifting frame (15) and the top of the workbench (1). Equipment box (2), the equipment box (2) is placed on the top of the workbench (1), the inside of the equipment box (2) is fixedly connected to both sides of the lifting slide rod (4), the outside of the lifting slide rod (4) is slidably connected to the lifting beam (6), and the bottom of the lifting beam (6) is fixedly connected to the pressure block (9), which is used for pipe hardness testing and sealing testing; Two suspension rods (13) are used for the drop hammer test. The suspension rods (13) are raised and lowered outside the lifting slide (4). The middle of the suspension rod (13) is fixed with a hook (14) that is detachably connected to the pressure block (9).

2. The UPVC pipe hardness testing device according to claim 1, characterized in that: The top of the workbench (1) is slidably connected with multiple limiting slide rods (16), one end of the limiting slide rod (16) is fixedly connected to the lifting frame (15), the bottom of the pressure sensor (17) is fixedly connected to the workbench (1), and two limiting plates (20) are adjustablely installed on the top of the lifting frame (15).

3. The UPVC pipe hardness testing device according to claim 1, characterized in that: A jack (18) is fixed inside the workbench (1) for separating the lifting frame (15) from the pressure sensor (17) during the drop hammer test. A protective cover (19) is detachably installed on the top of the workbench (1) and outside the lifting frame (15).

4. The UPVC pipe hardness testing device according to claim 1, characterized in that: The equipment box (2) is provided with a door (3) on one side, and an observation window is provided in the middle of the door (3). Two lead screw linear modules (5) are vertically fixed inside the equipment box (2), and the moving slide of the lead screw linear module (5) is fixedly connected to the lifting slide (4).

5. The UPVC pipe hardness testing device according to claim 1, characterized in that: An air pump (7) is fixedly connected to the top of the lifting slide bar (4), and an electromagnetic valve (8) is fixedly connected to the output end of the air pump (7). A through hole is opened in the middle of the pressure block (9), and the output end of the electromagnetic valve (8) is connected to the through hole. A pressure sensor (11) is installed inside the through hole.

6. The UPVC pipe hardness testing device according to claim 1, characterized in that: The lifting slide bar (4) is slidably connected to a slider (12) on its outer side and below the pressure block (9). The two suspension rods (13) are rotatably installed between the two sliders (12). The middle part of each suspension rod (13) is provided with a semi-circular groove.

7. The UPVC pipe hardness testing device according to claim 6, characterized in that: Two telescopic electromagnets (10) are symmetrically fixed to the top of the pressure block (9) for limiting the hook (14).

Images