A pressure testing device for PE water supply pipe detection

Abstract

This utility model relates to the field of PE water supply pipe testing technology and discloses a pressure testing device for PE water supply pipes. It includes two first mounting rings, each with a support plate below it. Each first mounting ring is a circular disc with a central mounting cavity containing a detachable mounting cylinder. In this utility model, the device constructs a rectangular channel using a fixed frame and an adapter frame to precisely match the cross-section of a square PE pipe. During clamping, the slider automatically floats upwards under the action of a spring, leaving a 15mm insertion space. Tightening the first threaded post drives the conical extrusion head to press down on the slider, causing the slider to symmetrically extrude the pipe sidewalls on all four sides, simultaneously completing mechanical fixing and circumferential sealing. This design overcomes the limitations of traditional step-by-step operation: spring pre-compression avoids manual alignment deviations, and the conical structure of the extrusion head converts the thread torque into uniform pressure, forming a continuous sealing band at the corners of the rectangular pipe.

Description

Technical Field

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

[0002] Square cross-section polyethylene (PE) water supply pipes are widely used in municipal engineering, but traditional pressure testing devices have significant drawbacks: firstly, the circular sealing structure is difficult to match the corners of rectangular pipes, leading to pressure leakage; secondly, manual clamping is inefficient and the sealing pressure is uneven, especially when the pipe size changes, the clamps need to be replaced frequently. We propose a pressure testing device for PE water supply pipe testing. Utility Model Content

[0003] The present invention mainly addresses the technical problems existing in the prior art by providing a pressure testing device for testing PE water supply pipes.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a pressure testing device for PE water supply pipe testing, comprising two first mounting rings, each with a support plate below it. Each first mounting ring is a circular disc with a mounting cavity at its center. A detachable mounting cylinder is installed inside the mounting cavity. A pressure gauge and an input pipe are fixedly mounted at opposite ends of the two mounting cylinders. A fixed frame (rectangular) is fixedly mounted on the side of the mounting cylinder. An adapter frame (rectangular) is fixedly mounted on the side of the mounting cylinder corresponding to the outer side of the fixed frame. A rectangular PE water supply pipe is positioned between the fixed frame and the adapter frame. Adapter frames are provided on all four sides of the adapter frame, and a movable slider is installed inside each adapter frame. A connecting cylinder is fixedly mounted on the side of the first mounting ring. A threaded hole is provided on the side of the connecting cylinder, with a first threaded post inside the threaded hole that presses against the slider. A groove is provided on the side of the connecting cylinder, and a support structure for supporting the connecting cylinder is provided inside the groove.

[0005] Preferably, the slider has two mounting grooves on its side. A protrusion is fixedly installed on the side of the groove corresponding to the position of the mounting groove. The protrusion extends into the interior of the mounting groove. A spring is fixedly installed on the upper side of the protrusion. The upper side of the spring is fixedly installed on the upper side of the mounting groove.

[0006] Preferably, the upper end of the first threaded post extends to the outside of the connecting cylinder and is fixedly mounted with a circular post, and the lower end of the first threaded post extends to the inside of the connecting cylinder and is fixedly mounted with a pressing head.

[0007] Preferably, the support structure includes a second mounting ring disposed inside the groove, a support rod fixedly mounted on the bottom side of the second mounting ring, a support block fixedly mounted on the bottom side of the support rod, and the support block disposed above the support plate.

[0008] Preferably, the second mounting ring is fixedly installed inside the groove by threads, and the support block is fixedly installed above the support plate by threads.

[0009] Preferably, a sealing structure is provided between the outer side of the mounting cylinder and the inner side of the mounting cavity, and the mounting cylinder is fixedly mounted on the side of the first mounting ring by threads.

[0010] Preferably, one of the two support plates has a guide groove on its side, and a sliding block is fixedly installed on the side of the other support plate at the position corresponding to the guide groove. The sliding block is slidably installed inside the guide groove. One of the two support plates has a threaded cavity on its side, and a second threaded post is fixedly connected to the side of the other support plate at the position corresponding to the threaded cavity. The second threaded post is threadedly connected inside the threaded cavity. A rotary motor is fixedly installed on the side of the support plate at the position corresponding to the second threaded post, and the output end of the rotary motor is fixedly installed on the end face of the second threaded post. Beneficial effects

[0011] This utility model provides a pressure testing device for testing PE water supply pipes. It has the following beneficial effects: (1) The pressure testing device for PE water supply pipes constructs a rectangular channel through a fixed frame and an adapter frame to precisely match the cross-section of a square PE pipe. During clamping, the slider automatically floats up under the action of the spring, leaving a 15mm insertion space; tightening the first threaded column drives the conical extrusion head to press down the slider, so that the slider symmetrically extrudes the pipe sidewall on all four sides, simultaneously completing mechanical fixing and circumferential sealing. This design breaks through the limitations of traditional step-by-step operation: the pre-compression of the spring avoids manual alignment deviation, and the conical structure of the extrusion head converts the thread torque into uniform pressure, forming a continuous sealing band at the corners of the rectangular pipe.

[0012] (2) The pressure testing device for PE water supply pipe testing achieves a double-stage seal by moving the support plate to push the end of the connecting cylinder to press the pipe end face, and by squeezing the slider to form the pipe wall covering. Attached Figure Description

[0013] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0014] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side sectional view of the connecting cylinder of this utility model; Figure 3 This is a side sectional view of the first mounting ring of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle; Legend: 1. First mounting ring; 2. Mounting cavity; 3. Mounting cylinder; 4. Connecting block; 5. Fixing frame; 6. Adapter frame; 7. Slide groove; 8. Slider; 9. Mounting groove; 10. Protrusion; 11. Spring; 12. Threaded hole; 13. First threaded post; 14. Extrusion head; 15. Groove; 16. Second mounting ring; 17. Support rod; 18. Support block; 19. Support plate; 20. Pressure gauge; 21. Input pipe; 23. Connecting cylinder; 24. Guide groove; 25. Sliding block; 26. Threaded cavity; 27. Rotary motor; 28. Second threaded post. Detailed Implementation

[0016] 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.

[0017] like Figures 1-4As shown, a pressure testing device for PE water supply pipes includes two first mounting rings 1, each with a support plate 19 below it. Each first mounting ring 1 is a circular disc with a mounting cavity 2 at its center. A detachable mounting cylinder 3 is installed inside the mounting cavity 2. A pressure gauge 20 and an input pipe 21 are fixedly mounted at opposite ends of the two mounting cylinders 3, respectively. A fixing frame 5, which is rectangular, is fixedly mounted on the side of each mounting cylinder 3. An adapter frame 6 is fixedly mounted on the side of each mounting cylinder 3 corresponding to the outer side of the fixing frame 5. 6 is a rectangular frame. A rectangular PE water supply pipe is installed between the fixed frame 5 and the adapter frame 6. The adapter frame 6 has adapter frames on all four sides. A movable slider 8 is installed inside the adapter frame 6. A connecting cylinder 23 is fixedly installed on the side of the first mounting ring 1. A threaded hole 12 is opened on the side of the connecting cylinder 23. The threaded hole 12 has a first threaded post 13 inside the threaded hole 12 that presses against the slider 8. A groove 15 is opened on the side of the connecting cylinder 23. A support structure is installed inside the groove 15 to support the connecting cylinder 23. During use, the two connecting cylinders are connected by the support structure. 23 is lifted up, and both ends of the rectangular PE water supply pipe are inserted into the outside of the fixing frame 5. Then, the slider 8 is squeezed by the extrusion head 14. The slider 8 squeezes the side of the PE water supply pipe, sealing and fixing the pipe at the same time. Then, gas is injected into the pipe through the input pipe 21, and the internal air pressure is detected by the pressure gauge 20 to test the square PE water supply pipe. There are two mounting grooves 9 on the side of the slider 8. The side of the slide groove 7 is fixedly installed with a protrusion 10 corresponding to the position of the mounting groove 9. The protrusion 10 extends into the interior of the mounting groove 9. A spring 11 is fixedly installed on the upper side of the protrusion 10. The upper side of the spring 11 is fixedly installed on the upper side of the mounting groove 9. When in use, the spring 11 pushes the slider 8 upward, making it easy to insert the square PE water supply pipe between the fixing frame 5 and the adapter frame 6. The upper end of the first threaded post 13 extends to the outside of the connecting cylinder 23 and is fixedly installed with a circular post. The lower end of the first threaded post 13 extends to the inside of the connecting cylinder 23 and is fixedly installed with a pressing head 14. When the first threaded post 13 is rotated, the first threaded post 13 drives the pressing head 14 to press the slider 8 to fix the square PE water supply pipe. The support structure includes a second mounting ring 16 disposed inside the groove 15. A support rod 17 is fixedly mounted on the bottom side of the second mounting ring 16, and a support block 18 is fixedly mounted on the bottom side of the support rod 17. The support block 18 is disposed above the support plate 19. The connecting cylinder 23 is supported by the second mounting ring 16, the support rod 17, and the support block 18. The second mounting ring 16 is fixedly mounted inside the groove 15 by threads, and the support block 18 is fixedly mounted above the support plate 19 by threads. A sealing structure is provided between the outer side of the mounting cylinder 3 and the inner side of the mounting cavity 2. The mounting cylinder 3 is fixedly mounted on the side of the first mounting ring 1 by threads. The mounting cylinder 3 is conveniently fixed by the threaded connection. One of the two support plates 19 has a guide groove 24 on its side, and the other support plate 19 has a sliding block 25 fixedly installed on its side corresponding to the guide groove 24. The sliding block 25 is slidably installed inside the guide groove 24. One of the two support plates 19 has a threaded cavity 26 on its side, and the other support plate 19 has a second threaded post 28 fixedly connected to its side corresponding to the threaded cavity 26. The second threaded post 28 is threadedly connected inside the threaded cavity 26. A rotary motor 27 is fixedly installed on the side of the support plate 19 corresponding to the second threaded post 28. The output end of the rotary motor 27 is fixedly installed on the end face of the second threaded post 28. Rotating the rotary motor 27 causes the second threaded post 28 to rotate inside the threaded cavity 26, causing the two support plates 19 to move closer to their corresponding sides. The sealing is improved by squeezing the two ends of the pipe through the side of the connecting block 4, and the sealing is further improved by squeezing the slider 8 through the second mounting ring 16.

[0018] The working principle of this utility model: In use, the two connecting cylinders 23 are lifted by the support structure, and the two ends of the rectangular PE water supply pipe are inserted into the outside of the fixed frame 5. Then, the extrusion head 14 extrudes the slider 8, and the slider 8 extrudes the side of the PE water supply pipe, sealing and fixing the pipe at the same time. Gas is then injected into the pipe through the input pipe 21, and the internal air pressure is detected by the pressure gauge 20 to test the square PE water supply pipe. The spring 11 pushes the slider 8 upward, making it easy to insert the square PE water supply pipe between the fixed frame 5 and the adapter frame 6. The first threaded column 13 is rotated. The first threaded column 13 drives the extrusion head 14 to extrude the slider 8 to fix the square PE water supply pipe. The connecting cylinder 23 is supported by the second mounting ring 16, support rod 17 and support block 18. The mounting cylinder 3 is fixed by means of threaded connection. The rotating motor 27 drives the second threaded column 28 to rotate inside the threaded cavity 26, so that the two support plates 19 move closer to their corresponding sides. The two ends of the pipe are extruded by the side of the connecting block 4 to improve the seal. The second mounting ring 16 extrudes the slider 8 to further improve the seal.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure testing device for PE water supply pipe detection, comprising two first mounting rings (1), and a support plate (19) is arranged below each of the two first mounting rings (1), characterized in that: The first mounting ring (1) is a circular disc and a mounting cavity (2) is provided at the center of the first mounting ring (1). A detachable mounting cylinder (3) is provided inside the mounting cavity (2). A pressure gauge (20) and an input pipe (21) are fixedly installed at opposite ends of the two mounting cylinders (3). A fixing frame (5) is fixedly installed on the side of the mounting cylinder (3). The fixing frame (5) is a rectangular frame. An adapter frame (6) is fixedly installed on the side of the mounting cylinder (3) corresponding to the outside of the fixing frame (5). The adapter frame (6) is a rectangular frame. The fixing frame (5) and the adapter frame (6) are fixedly installed on the outside of the fixing frame (5). A rectangular PE water supply pipe is set between the two sides. The adapter frame (6) is provided on all four sides. The adapter frame (6) is provided with a movable slider (8). A connecting cylinder (23) is fixedly installed on the side of the first mounting ring (1). A threaded hole (12) is provided on the side of the connecting cylinder (23). The threaded hole (12) has a first threaded post (13) that squeezes the slider (8) inside. A groove (15) is provided on the side of the connecting cylinder (23). A support structure for supporting the connecting cylinder (23) is provided inside the groove (15).

2. The pressure testing device for PE water pipes according to claim 1, characterized in that: The slider (8) has two mounting grooves (9) on its side. A protrusion (10) is fixedly installed on the side of the sliding groove (7) corresponding to the mounting groove (9). The protrusion (10) extends into the interior of the mounting groove (9). A spring (11) is fixedly installed on the upper side of the protrusion (10). The upper side of the spring (11) is fixedly installed on the upper side of the mounting groove (9).

3. The pressure testing device for PE water pipes according to claim 2, characterized in that: The upper end of the first threaded post (13) extends to the outside of the connecting cylinder (23) and is fixedly installed with a circular post, and the lower end of the first threaded post (13) extends to the inside of the connecting cylinder (23) and is fixedly installed with a pressing head (14).

4. The pressure testing device for PE water pipes according to claim 1, characterized in that: The support structure includes a second mounting ring (16) disposed inside the groove (15), a support rod (17) fixedly mounted on the bottom side of the second mounting ring (16), a support block (18) fixedly mounted on the bottom side of the support rod (17), and the support block (18) disposed above the support plate (19).

5. The pressure testing device for PE water pipes according to claim 4, characterized in that: The second mounting ring (16) is fixedly installed inside the groove (15) by threads, and the support block (18) is fixedly installed above the support plate (19) by threads.

6. The pressure testing device for PE water pipes according to claim 5, characterized in that: A sealing structure is provided between the outer side of the mounting cylinder (3) and the inner side of the mounting cavity (2), and the mounting cylinder (3) is fixedly installed on the side of the first mounting ring (1) by threads.

7. The pressure testing device for PE water pipes according to claim 1, characterized in that: One of the two support plates (19) has a guide groove (24) on its side, and a sliding block (25) is fixedly installed on the side of the other support plate (19) corresponding to the guide groove (24). The sliding block (25) is slidably installed inside the guide groove (24). One of the two support plates (19) has a threaded cavity (26) on its side, and a second threaded post (28) is fixedly connected on the side of the other support plate (19) corresponding to the threaded cavity (26). The second threaded post (28) is threadedly connected inside the threaded cavity (26). A rotary motor (27) is fixedly installed on the side of the support plate (19) corresponding to the second threaded post (28). The output end of the rotary motor (27) is fixedly installed on the end face of the second threaded post (28).

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