A PE pipe pressure testing device

Abstract

This utility model relates to the field of pressure testing devices, and discloses a PE pipe pressure testing device, including a base plate, an installation assembly fixed to one side of the upper end of the base plate for pressing and fixing the PE pipe, and a pressure testing assembly for performing lateral multi-point testing. The front and rear faces of the base plate are both provided with sliding grooves, and a laterally sliding frame is installed within the grooves. The pressure testing assembly is mounted on the frame. A fixing plate is fixedly installed on the upper end of the base plate away from the installation assembly, and a threaded rod is threaded through the upper end of the fixing plate. A second pressing plate is rotatably connected to the lower end of the threaded rod. A driving mechanism for driving the lateral displacement of the frame is installed inside the base plate. In this utility model, by mounting the pressure testing assembly on the frame and using the driving mechanism to drive the frame to move laterally, the pressure testing assembly's position can be adjusted, thereby achieving multi-point testing of the outer wall of the PE pipe.

Description

Technical Field

[0001] This utility model relates to the field of pressure testing devices, and in particular to a PE pipe pressure testing device. Background Technology

[0002] PE is polyethylene plastic, the most basic type of plastic. Plastic bags, cling film, etc., are all made of PE. HDPE is a highly crystalline, non-polar thermoplastic resin. PE pipes, or polyethylene pipes, have a wide range of applications. Pressure testing equipment is needed during the processing of PE pipes to test their toughness.

[0003] Existing technology CN220437972U discloses a PE pipe pressure testing device, belonging to the field of PE pipe pressure testing technology. It includes a support platform, on which a fixing mechanism, a pressure measuring mechanism, and a pressure covering mechanism are arranged. The fixing mechanism is located on both sides of the pressure measuring mechanism, and the pressure covering mechanism is located above the pressure measuring mechanism. This invention facilitates rapid positioning of the PE pipe through a concave groove on the support block. Simultaneously, a drive motor drives a threaded rod to rotate, causing the fixing rod and the threaded block to move. The clamping effect of the two fixing rods achieves the effect of fixing the PE pipe. A pressure sensor, a distance sensor, and a display are connected to each other via electrical signals. After detecting a uniform change in the pressure sensor value, the distance sensor detects the distance the pressure covering plate descends, and the display shows various values, making the test results more intuitive.

[0004] In the process of realizing this application, the inventors discovered the following problems with the prior art: Although the existing testing device can quickly perform pressure testing on PE pipes, the position of the testing components is fixed. When performing multi-point testing, the position of the PE pipe needs to be repeatedly adjusted, which makes the operation cumbersome and makes it impossible to perform multi-point pressure testing on PE pipes conveniently and quickly.

[0005] Therefore, those skilled in the art have provided a PE pipe pressure testing device to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a PE pipe pressure testing device. This device involves mounting the pressure testing components on a frame and using a drive mechanism to move the frame laterally to adjust the position of the pressure testing components, thereby achieving multi-point testing of the outer wall of the PE pipe.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A PE pipe pressure testing device includes a base plate, an installation assembly fixed to one upper side of the base plate for pressing and fixing the PE pipe, and a pressure testing assembly for performing transverse multi-point testing. The front and rear faces of the base plate are provided with grooves, and a transversely sliding frame is installed in the grooves. The pressure testing assembly is installed on the frame. A fixing plate is fixedly provided on the upper side of the base plate away from the installation assembly, and a threaded rod is threaded through the upper side of the fixing plate. The lower end of the threaded rod is rotatably connected to a second pressing plate. A driving mechanism for driving the transverse displacement of the frame is installed inside the base plate.

[0009] Furthermore, a circular hole is provided on the side of the fixing plate opposite to the mounting component, and the second extrusion plate is located inside the upper end of the circular hole. The mounting component includes a base, and a mounting block is rotatably provided on the upper end face of the base near the rear end via a rotating shaft. A connecting plate is fixedly provided on the front end of the mounting block, and a fixing frame is fixedly provided at the midpoint of the upper end face of the mounting block. An adjusting screw is rotatably provided through the upper end face of the fixing frame via a bearing, and a connecting column is threadedly connected to the lower end of the adjusting screw. The first extrusion plate is fixedly provided on the lower end face of the connecting column. Semicircles are provided on the upper end of the base and the lower end of the mounting block, and they are combined to form a complete circle, wherein the complete circle and the circular hole are on the same central axis.

[0010] Furthermore, a fastening bolt is threaded through the upper end face of the base near the front end, and the fastening bolt is threaded onto the upper end of the connecting plate. The connecting column is a square column and penetrates the lower end of the mounting block.

[0011] Furthermore, the pressure testing assembly includes a hydraulic rod fixed to the frame, a compression block fixedly disposed at the lower output end of the hydraulic rod, an infrared rangefinder embedded in the upper surface of the compression block near the rear end, and a scale fixedly disposed in the upper surface of the compression block near the front end.

[0012] Furthermore, the upper end of the scale extends through the upper surface of the frame, and when the hydraulic rod is in the retracted state, the zero line of the scale is flush with the upper surface of the frame.

[0013] Furthermore, an electronic scale platform is fixedly installed on the upper surface of the base plate between the fixing plate and the mounting assembly.

[0014] Furthermore, the driving mechanism includes two No. 2 threaded rods and a driving rod. The driving rod is rotatably mounted inside one side of the base plate via a bearing seat. The two No. 2 threaded rods are respectively rotatably mounted in two sliding grooves and threadedly connected to the front and rear ends of the frame. A No. 1 bevel gear is fixedly mounted at one end of each of the two No. 2 threaded rods. A No. 2 bevel gear is fixedly mounted at both the front and rear ends of the driving rod and meshes with the No. 1 bevel gear. One end of the driving rod passes through the front end of the base plate and is fixedly connected to a driving motor.

[0015] This utility model has the following beneficial effects:

[0016] 1. The PE pipe pressure testing device proposed in this utility model inserts one end of the PE pipe to be tested into the inside of the fixing plate and uses the No. 1 extrusion plate at the top to press and fix it. Then, the other end is passed through the mounting assembly and the mounting assembly is used to press and fix the other end of the PE pipe. This not only avoids the phenomenon of the two ends of the PE pipe lifting up during pressure testing, but also eliminates the need for centering and clamping when fixing a long PE pipe. It is only necessary to clamp one end of the PE pipe and fix it with the outer wall at a fixed distance after passing the PE pipe through the mounting assembly.

[0017] 2. The PE pipe pressure testing device proposed in this utility model can quickly read the pressure value of the PE pipe by setting an electronic scale on the base plate. The pressure testing component at the upper end, which is used for pressure testing, can be adjusted laterally under the action of the frame and the drive mechanism, so as to perform multi-point pressure testing on the outer wall of the PE pipe. This solves the problem that the traditional testing device can only perform single-point compression testing, and the data is relatively simple. In addition, the dual ranging of infrared rangefinder and scale ensures the accuracy of the data. Attached Figure Description

[0018] Figure 1 This is an axonometric view of the present invention;

[0019] Figure 2 For the present utility model Figure 1 Another perspective structural diagram;

[0020] Figure 3 This is a schematic diagram of the pressure testing component and drive mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation component of this utility model.

[0022] Legend:

[0023] 1. Threaded rod No. 1; 2. Fixing plate; 3. Pressure testing assembly; 301. Scale; 302. Hydraulic rod; 303. Infrared rangefinder; 304. Extrusion block; 4. Frame; 5. Mounting assembly; 501. Adjusting screw; 502. Fixing frame; 503. Mounting block; 504. Base; 505. Connecting plate; 506. Fastening bolt; 507. Extrusion plate No. 1; 508. Connecting column; 6. Base plate; 7. Drive mechanism; 701. Threaded rod No. 2; 702. Bevel gear No. 1; 703. Drive rod; 704. Bevel gear No. 2; 705. Drive motor; 8. Slide groove; 9. Extrusion plate No. 2. Detailed Implementation

[0024] 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.

[0025] Reference Figures 1-4 This utility model provides an embodiment of a PE pipe pressure testing device, including a base plate 6, an installation component 5 fixed to one side of the upper end of the base plate 6 for pressing and fixing the PE pipe, and a pressure testing component 3 for performing transverse multi-point testing. The front and rear faces of the base plate 6 are provided with grooves 8, and a transversely sliding frame 4 is installed in the grooves 8. The pressure testing component 3 is installed on the frame 4. A fixing plate 2 is fixedly provided on the side of the upper end of the base plate 6 away from the installation component 5, and a threaded rod 1 is threaded through the upper end of the fixing plate 2. The lower end of the threaded rod 1 is rotatably connected to a second extrusion plate 9. A driving mechanism 7 for driving the transverse displacement of the frame 4 is installed inside the base plate 6.

[0026] Specifically, during testing, the PE pipe to be tested can be passed through the mounting component 5 so that one end is embedded inside the fixing plate 2. Since the round hole on the fixing plate 2 is not through, one end of the PE pipe will not be exposed. The excess body of the longer PE pipe can be placed on one side of the mounting component 5, reducing the space occupied by the PE pipe on both sides. The drive mechanism 7 is used to drive the frame 4 to make lateral displacement to realize the lateral displacement of the upper pressure testing component 3, so as to use multi-point testing effect on the outer wall of the PE pipe, making the data more complete and accurate.

[0027] Reference Figure 1 , Figure 2 and Figure 4 The fixing plate 2 has a circular hole on the side opposite to the mounting component 5, and the second extrusion plate 9 is located inside the upper end of the circular hole. The mounting component 5 includes a base 504. The mounting block 503 is rotatably mounted on the upper end face of the base 504 near the rear end via a rotating shaft. The front end of the mounting block 503 is fixedly mounted with a connecting plate 505. The midpoint of the upper end face of the mounting block 503 is fixedly mounted with a fixing frame 502. The upper end face of the fixing frame 502 is rotatably mounted with an adjusting screw 501 via a bearing, and the lower end of the adjusting screw 501 is threaded with a connecting post 508. The lower end face of the connecting post 508 is fixedly mounted with a first extrusion plate 507. The upper end of the base 504 and the lower end of the mounting block 503 both have semicircles that combine to form a complete circle, wherein the complete circle and the circular hole are on the same central axis.

[0028] Specifically, during use, one end of the PE pipe is first inserted into the round hole. Then, the first threaded rod 1 at the top is twisted to move it downwards. During the downward movement of the first threaded rod 1, it pushes the second extrusion plate 9 at the bottom, causing it to continuously approach the end of the PE pipe, thereby extruding and fixing the end of the PE pipe. The other end of the PE pipe passes through the round hole of the mounting component 5. At this time, the adjusting screw 501 at the top is twisted, and the adjusting screw 501 rotates on the fixing frame 502. Since the lower end is threadedly connected to the connecting post 508, the connecting post 508 moves downwards. During the downward movement of the connecting post 508, it pushes the first extrusion plate 507 at the bottom to move downwards, thereby extruding and fixing the other end of the PE pipe. Since the mounting block 503 is rotatably mounted on the base 504, the mounting block 503 can be rotated to the rear end as needed, thereby exposing the upper end of the base 504, so that the PE pipe can be placed in the semi-circular groove from top to bottom.

[0029] Reference Figure 4 A fastening bolt 506 is threaded through the upper end face of the base 504 near the front end, and the fastening bolt 506 is threadedly installed on the upper end of the connecting plate 505. The connecting column 508 is a square column and passes through the lower end of the mounting block 503.

[0030] Specifically, the mounting block 503 is rotated so that the connecting plate 505 at the front end is inserted into the slot at the front end of the base 504. At this time, the upper mounting block 503 is located directly above the base 504. Then, the fastening bolt 506 is tightened to fix the lower connecting plate 505 so that the mounting block 503 will not fall off.

[0031] Reference Figure 3 The pressure testing component 3 includes a hydraulic rod 302, which is fixed on the frame 4. A compression block 304 is fixedly installed at the lower output end of the hydraulic rod 302. An infrared rangefinder 303 is embedded in the upper end face of the compression block 304 near the rear end. A scale 301 is fixedly installed in the upper end face of the compression block 304 near the front end. The upper end of the scale 301 penetrates the upper end face of the frame 4. When the hydraulic rod 302 is in the retracted state, the zero line of the scale 301 is flush with the upper surface of the frame 4.

[0032] Specifically, during use, the hydraulic rod 302 is activated to push the extrusion block 304 downwards. The extrusion block 304 continuously approaches the outer wall of the PE pipe to pressurize the PE pipe and complete the pressure test. When the hydraulic rod 302 pushes the extrusion block 304 downwards, the upper scale 301 and the infrared rangefinder 303 also move downwards. The infrared rangefinder 303 is connected to the display device to acquire the displacement distance data. At the same time, the reading can also be directly read from the scale after the scale 301 moves downwards.

[0033] Reference Figure 1An electronic scale platform is fixedly installed on the upper surface of the base plate 6 between the fixed plate 2 and the mounting component 5. When the pressure testing component 3 exerts pressure on the PE pipe, the electronic scale platform is also subjected to the same pressure because the PE pipe is located on the electronic scale platform, thus providing a pressure value.

[0034] Reference Figure 3 The drive mechanism 7 includes two No. 2 threaded rods 701 and a drive rod 703. The drive rod 703 is rotatably mounted inside one side of the base plate 6 via a bearing seat. The two No. 2 threaded rods 701 are rotatably mounted in two sliding grooves 8 and are threadedly connected to the front and rear ends of the frame 4. One end of each of the two No. 2 threaded rods 701 is fixedly mounted with a No. 1 bevel gear 702. The front and rear ends of the drive rod 703 are fixedly mounted with No. 2 bevel gears 704 and mesh with the No. 1 bevel gear 702. One end of the drive rod 703 passes through the front end of the base plate 6 and is fixedly connected to a drive motor 705.

[0035] Specifically, during use, when the drive motor 705 is started, the drive rod 703 is fixedly connected to the output end of the drive motor 705. At this time, the drive rod 703 is driven to rotate, and the second bevel gear 704 on the outside of the drive rod 703 also rotates. The rotation of the second bevel gear 704 drives the first bevel gear 702 to rotate, thereby realizing the rotation of the two second threaded rods 701. Since the frame 4 is threadedly connected to the second threaded rod 701 and is restricted from rotating by the slide groove 8, the frame 4 is able to move laterally, thereby realizing the lateral displacement of the upper pressure testing component 3.

[0036] Working principle: When using this device, first insert one end of the PE pipe into the round hole, then twist the upper threaded rod 1 to make it move downward. During the downward movement of the threaded rod 1, it pushes the lower extrusion plate 9 to continuously approach the end of the PE pipe, thereby extruding and fixing the end of the PE pipe. Meanwhile, the other end of the PE pipe passes through the round hole of the mounting component 5. At this time, twist the upper adjusting screw 501. The adjusting screw 501 rotates on the fixed frame 502. Since the lower end is threadedly connected to the connecting post 508, it causes the connecting post 508 to move downward. During the downward movement, the connecting post 508 pushes the lower extrusion plate 507 to move downward, thereby extruding and fixing the other end of the PE pipe.

[0037] Secondly, the drive mechanism 7 drives the frame 4 to move laterally, causing the pressure test component 3 at the upper end to also move laterally, so that it can be quickly adjusted to different positions of the PE pipe. When the pressure test component 3 reaches a test point, the drive mechanism 7 stops moving. At this time, the hydraulic rod 302 is activated to push the extrusion block 304 down. The extrusion block 304 continuously approaches the outer wall of the PE pipe to pressurize the PE pipe and complete the pressure test.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A PE pipe pressure testing device, comprising a base plate (6), an installation assembly (5) fixed to one side of the upper end of the base plate (6) for pressing and fixing the PE pipe, and a pressure testing assembly (3) for performing transverse multi-point testing, characterized in that: The front and rear faces of the base plate (6) are provided with grooves (8) and a frame (4) for lateral sliding is installed in the grooves (8). The pressure testing component (3) is installed on the frame (4). A fixing plate (2) is fixedly installed on the side of the upper face of the base plate (6) away from the mounting component (5), and a threaded rod (1) is threaded through the upper face of the fixing plate (2). The lower end of the threaded rod (1) is rotatably connected to a second extrusion plate (9). A driving mechanism (7) for driving the lateral displacement of the frame (4) is installed inside the base plate (6).

2. The PE pipe pressure testing apparatus according to claim 1, characterized in that: The fixing plate (2) has a circular hole on the side opposite to the mounting component (5), and the second extrusion plate (9) is located inside the upper end of the circular hole. The mounting component (5) includes a base (504). The upper end of the base (504) is rotatably provided with a mounting block (503) via a rotating shaft at the rear end. The front end of the mounting block (503) is fixedly provided with a connecting plate (505). The midpoint of the upper end of the mounting block (503) is fixedly provided with a fixing frame (502). The upper end of the fixing frame (502) is rotatably provided with an adjusting screw (501) via a bearing, and the lower end of the adjusting screw (501) is threaded with a connecting column (508). The lower end of the connecting column (508) is fixedly provided with a first extrusion plate (507). The upper end of the base (504) and the lower end of the mounting block (503) are both provided with semicircles, which are combined to form a complete circle, wherein the complete circle and the circular hole are on the same central axis.

3. A PE pipe pressure testing apparatus as claimed in claim 2, wherein: The upper surface of the base (504) near the front end is provided with a fastening bolt (506) threaded through it, and the fastening bolt (506) is threadedly installed on the upper end of the connecting plate (505). The connecting column (508) is a square column and passes through the lower end of the mounting block (503).

4. The PE pipe pressure testing apparatus of claim 1, wherein: The pressure testing assembly (3) includes a hydraulic rod (302), which is fixed on the frame (4). A compression block (304) is fixedly installed at the lower output end of the hydraulic rod (302). An infrared rangefinder (303) is embedded in the upper surface of the compression block (304) near the rear end. A scale (301) is fixedly installed in the upper surface of the compression block (304) near the front end.

5. A PE pipe pressure testing apparatus as claimed in claim 4, wherein: The upper end of the scale (301) penetrates the upper surface of the frame (4). When the hydraulic rod (302) is in the retracted state, the zero line of the scale (301) is flush with the upper surface of the frame (4).

6. The PE pipe pressure testing apparatus of claim 1, wherein: An electronic scale platform is fixedly installed on the upper surface of the base plate (6) between the fixing plate (2) and the mounting assembly (5).

7. The PE pipe pressure testing apparatus of claim 1, wherein: The drive mechanism (7) includes two No. 2 threaded rods (701) and a drive rod (703). The drive rod (703) is rotatably mounted inside the base plate (6) via a bearing seat. The two No. 2 threaded rods (701) are respectively rotatably mounted in two sliding grooves (8) and threadedly connected to the front and rear ends of the frame (4). One end of each of the two No. 2 threaded rods (701) is fixedly mounted with a No. 1 bevel gear (702). The front and rear ends of the drive rod (703) are fixedly mounted with No. 2 bevel gears (704) and mesh with the No. 1 bevel gear (702). One end of the drive rod (703) passes through the front end of the base plate (6) and is fixedly connected to a drive motor (705).

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