Plastic pipe compressive strength detection device

Abstract

The utility model discloses a plastic pipe compressive strength detection device which comprises a base, a supporting frame is arranged at the top of the base, two ends of the bottom of the supporting frame are connected with two longitudinal ends of the top of the base, a detection table of an isosceles trapezoid structure is arranged at the top of the base on the inner side of the supporting frame, and a plastic pipe is arranged at the top of the detection table. Supporting mounting plates are arranged on the two longitudinal sides of the detection table, CCD cameras are arranged on the tops of the supporting mounting plates, and a lifting supporting plate is arranged above the plastic pipe. The beneficial effects of the utility model are that the device is reasonable in design, is simple and stable in structure, and is high in practicality; the deformation condition of the plastic pipe can be monitored in real time when the pressure is applied to the plastic pipe, the plastic pipe can be positioned to be aligned with the position of the pressing plate, displacement of the plastic pipe in the detection process can be avoided, the deformation of the plastic pipe is prevented from being influenced, and the detection result is prevented from being influenced. The plastic pipe compressive strength detection device is suitable for popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe detection, in particular to a plastic pipe compressive strength detection device. Background Art

[0002] Plastic pipes, as an important component of chemical building materials, mainly include UPVC drainage pipes, UPVC water supply pipes, aluminum-plastic composite pipes, polyethylene (PE) water supply pipes, and polypropylene PPR hot water pipes. They are widely accepted by users for their hygiene, environmental protection, and low consumption. They are widely used in various industries. They need to be subjected to compression testing before leaving the factory to ensure the quality of the finished plastic pipes.

[0003] The method of conducting compression resistance test on plastic pipes is usually to place them directly on the bottom plate of the press to apply pressure, and then manually measure the diameter of the plastic pipe after pressure to calculate the outer diameter change rate of the plastic pipe. This is not only prone to misalignment between the plastic pipe and the press, resulting in inaccurate test results, but also the plastic pipe is easy to detach from the press when it is deformed during the pressurization process, which will cause certain safety hazards. In addition, the efficiency of manual measurement is slow, which affects the detection efficiency and needs further development and improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic pipe compressive strength testing device in order to solve the problems that the existing plastic pipe is directly pressurized by a press to test its compressive performance, which is not only prone to misalignment between the plastic pipe and the press, but also the plastic pipe is easily separated from the press when it is deformed during the pressurization process, and the manual measurement efficiency is slow.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions: a plastic pipe compressive strength testing device, comprising a base, a support frame is arranged on the top of the base, two ends of the bottom of the support frame are connected to the two ends of the top of the base in the longitudinal direction, an isosceles trapezoidal structure testing platform is arranged on the top of the base inside the support frame, a plastic pipe is arranged on the top of the testing platform, support mounting plates are arranged on both sides of the testing platform in the longitudinal direction, a CCD camera is arranged on the top of the support mounting plate, a lifting support plate is arranged above the plastic pipe, two ends of the lifting support plate are respectively connected to the inner surfaces of the two sides of the support frame in the longitudinal direction in a sliding manner, and a U-shaped camera is arranged at the bottom of the lifting support plate. A U-shaped support plate, a supporting connecting column is installed in the middle of the U-shaped support plate, a limiting plate is arranged at one end of the supporting connecting column above the U-shaped support plate, a pressure plate is arranged at one end below the U-shaped support plate, a pressure sensor is arranged at the bottom of the lifting support plate corresponding to the position of the limiting plate, a first lifting device is arranged between the top of the lifting support plate and the inner surface of the top of the support frame, a limiting rod is arranged on the inner side of the plastic pipe in the vertical direction corresponding to the axis, limiting pressure rings are installed at both ends of the limiting rod, and second lifting devices are arranged on both lateral surfaces of the base directly below the limiting rod, and the output end of the second lifting device is connected to the limiting pressure ring.

[0006] Furthermore, the support frame and the base as well as the detection platform and the base are fixedly connected by welding.

[0007] Furthermore, protective nets are provided on both lateral sides of the support frame.

[0008] Furthermore, a control device is provided on one longitudinal side of the support frame, and the CCD camera, the pressure sensor, the first lifting device and the second lifting device are all electrically connected to the control device.

[0009] Furthermore, the top of the detection platform and the bottom of the pressure plate are both provided with anti-skid pads supported by rubber material.

[0010] Furthermore, a linear bushing is provided between the U-shaped support plate and the support connecting column.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a reasonable design, a simple and stable structure, and strong practicality; the first lifting device is provided to drive the lifting support plate to descend, so that the pressing plate contacts the plastic pipe, and the limit plate contacts the pressure sensor, and the force is applied based on the opposite principle. The pressure applied by the pressing plate to the plastic pipe can be reversely applied to the pressure sensor through the limit plate, that is, the size of the pressure applied to the plastic pipe can be monitored in real time. Combined with the CCD camera structure provided, the deformation of the plastic pipe when the pressure is applied to the plastic pipe can be monitored in real time, thereby improving the plastic The accuracy of the compressive strength test results of the pipe is improved; by coordinating the position of the limit rod, the limit pressure ring inserted on the limit rod and the structure of the second lifting device, the limit rod can be pressed to the bottom end position on the inner side of the plastic pipe before the plastic pipe is tested, and the plastic pipe can be positioned so that it is relatively aligned with the pressure plate position, while preventing it from being easily displaced during the test process or even detaching from the test equipment. In addition, while limiting the position of the plastic pipe, it can also prevent it from affecting the deformation of the plastic pipe and affecting the test results, thereby further improving the accuracy of the compressive strength test results of the plastic pipe, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a left view of the utility model.

[0014] In the figure: 1-base, 2-support frame, 3-testing table, 4-plastic pipe, 5-support mounting plate, 6-CCD camera, 7-lifting support plate, 8-U-shaped support plate, 9-support connecting column, 10-limiting plate, 11-pressure plate, 12-pressure sensor, 13-first lifting device, 14-limiting rod, 15-limiting pressure ring, 16-second lifting device, 17-control device. DETAILED DESCRIPTION

[0015] 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.

[0016] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0017] Combination Figure 1 to Figure 2 A plastic pipe compressive strength testing device shown in the figure comprises a base 1, a support frame 2 is arranged on the top of the base 1, the two ends of the bottom of the support frame 2 are connected to the two ends of the top of the base 1 in the longitudinal direction, an isosceles trapezoidal structure testing platform 3 is arranged on the top of the base 1 inside the support frame 2, a plastic pipe 4 is arranged on the top of the testing platform 3, support mounting plates 5 are arranged on both sides of the testing platform 3 in the longitudinal direction, a CCD camera 6 is arranged on the top of the support mounting plate 5, a lifting support plate 7 is arranged above the plastic pipe 4, the two ends of the lifting support plate 7 are respectively connected to the inner surfaces of the two sides of the longitudinal direction of the support frame 2 in a sliding manner in the vertical direction, a U-shaped support plate 8 is arranged at the bottom of the lifting support plate 7, and a U-shaped support plate 8 is inserted in the middle A supporting connecting column 9 is installed, a limiting plate 10 is arranged at one end above the U-shaped supporting plate 8, a pressing plate 11 is arranged at one end below the U-shaped supporting plate 8, a pressure sensor 12 is arranged at the position of the limiting plate 10 at the bottom of the lifting support plate 7, a first lifting device 13 is arranged between the top of the lifting support plate 7 and the inner surface of the top of the supporting frame 2, a limiting rod 14 is arranged on the inner side of the plastic pipe 4 in the vertical direction corresponding to the axis, limiting pressure rings 15 are installed at both ends of the limiting rod 14, and second lifting devices 16 are arranged on both lateral surfaces of the base 1 directly below the limiting rod 14, and the output end of the second lifting device 16 is connected to the limiting pressure ring 15.

[0018] The support frame 2 and the base 1 as well as the detection platform 3 and the base 1 are fixedly connected by welding, so as to ensure the stability and firmness of the connection structure between them and improve their safety and service life; protective nets are arranged on both sides of the support frame 2 in the horizontal direction to prevent the plastic pipe 4 from being crushed and produced by the fragments bursting out, so as to improve the safety of detection; a control device 17 is arranged on one side of the support frame 2 in the longitudinal direction, and the CCD camera 6, the pressure sensor 12, the first lifting device 13 and the second lifting device 16 are all electrically connected to the control device 17, and the control device 17 is used to receive the signals transmitted by the CCD camera 6 and the pressure sensor 12, and control The working status of the first lifting device 13 and the second lifting device 16, wherein the first lifting device 13 and the second lifting device 16 are one of a hydraulic cylinder or a servo electric cylinder, which is convenient for controlling the stroke size; the top of the detection platform 3 and the bottom of the pressure plate 11 are provided with anti-slip pads supported by rubber material, which further ensure the stability of the position of the plastic pipe 4 during the detection process, avoid its easy displacement, and ensure the accuracy of the detection result; a linear bushing is provided between the U-shaped support plate 8 and the supporting connecting column 9, which facilitates the smooth lifting and lowering of the supporting connecting column 9. When the pressure plate 11 presses down the plastic pipe 4, the limit plate 10 can act on the pressure sensor 12.

[0019] When testing the compressive strength of the plastic pipe, the plastic pipe to be tested is placed on the top of the testing platform, and then the limiting rod is extended into the inner side of the plastic pipe, and then the two ends of the limiting rod are plugged into and matched with the limiting pressure ring, and then the second lifting device can be controlled to drive the limiting pressure ring to descend, and the limiting rod follows and descends, and contacts with the bottom end of the inner surface of the plastic pipe. While limiting the plastic pipe, the position of the plastic pipe can be adjusted to correspond to the position of the pressure plate, and then the first lifting device can be controlled to drive the lifting support plate to descend until the pressure plate contacts the plastic pipe and the limiting plate and The pressure sensor is in contact with each other, and then the first lifting device can be controlled to continue to drive the lifting support plate to descend, so that the pressure plate exerts a certain pressure on the plastic pipe. The force is applied based on the opposite principle. The pressure exerted by the pressure plate on the plastic pipe can be reversely applied to the pressure sensor through the limit plate. It can monitor the pressure exerted by the pressure plate on the plastic pipe in real time, and at the same time, the deformation of the plastic pipe under different pressures can be monitored in real time through the set CCD camera, thereby achieving the purpose of compressive strength testing of the plastic pipe. There is no need for manual measurement and recording, the operation is simple and convenient, and it is suitable for popularization and use.

[0020] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0021] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A plastic pipe compressive strength testing device, comprising a base (1), characterized in that: A support frame (2) is arranged on the top of the base (1), and the two ends of the bottom of the support frame (2) are connected to the two ends of the top of the base (1) in the longitudinal direction. An isosceles trapezoidal detection platform (3) is arranged on the top of the base (1) inside the support frame (2), and a plastic pipe (4) is arranged on the top of the detection platform (3). Support mounting plates (5) are arranged on both sides of the detection platform (3) in the longitudinal direction, and a CCD camera (6) is arranged on the top of the support mounting plate (5). A lifting support plate (7) is arranged above the plastic pipe (4), and the two ends of the lifting support plate (7) are respectively connected to the inner surfaces of the two sides of the support frame (2) in the longitudinal direction in a sliding manner. A U-shaped support plate (8) is arranged at the bottom of the lifting support plate (7), and a supporting connection column (9) is installed in the middle of the U-shaped support plate (8). A limit plate (10) is arranged at one end of the support connecting column (9) located above the U-shaped support plate (8), and a pressure plate (11) is arranged at one end below the U-shaped support plate (8). A pressure sensor (12) is arranged at the bottom of the lifting support plate (7) corresponding to the position of the limit plate (10). A first lifting device (13) is arranged between the top of the lifting support plate (7) and the inner surface of the top of the support frame (2). A limit rod (14) is arranged on the inner side of the plastic pipe (4) in the vertical direction corresponding to the axis. Limit pressure rings (15) are installed at both ends of the limit rod (14). Second lifting devices (16) are arranged on both lateral surfaces of the base (1) directly below the limit rod (14), and the output end of the second lifting device (16) is connected to the limit pressure ring (15).

2. A plastic pipe compressive strength testing device according to claim 1, characterized in that The support frame (2) and the base (1) as well as the detection platform (3) and the base (1) are fixedly connected by welding.

3. A plastic pipe compressive strength testing device according to claim 1, characterized in that : Protective nets are arranged on both lateral sides of the support frame (2).

4. A plastic pipe compressive strength testing device according to claim 1, characterized in that A control device (17) is provided on one longitudinal side of the support frame (2); the CCD camera (6), the pressure sensor (12), the first lifting device (13) and the second lifting device (16) are all electrically connected to the control device (17).

5. A plastic pipe compressive strength testing device according to claim 1, characterized in that The top of the detection platform (3) and the bottom of the pressing plate (11) are both provided with anti-skid pads supported by rubber material.

6. A plastic pipe compressive strength testing device according to claim 1, characterized in that A linear bushing is provided between the U-shaped support plate (8) and the support connecting column (9).

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