A test device for the sealing performance of fiberglass reinforced plastic (FRP) sand-filled pipe

Abstract

This utility model relates to the field of sand-filled pipe testing technology, specifically to a fiberglass sand-filled pipe sealing performance testing device, including a connecting seat. A first test cylinder is installed on one side of the connecting seat. An electric telescopic rod is installed on the outer wall of the connecting seat below the first test cylinder. An extension rod is installed at the output end of the electric telescopic rod. A support plate is installed at the top end of the extension rod. A second test cylinder is installed at one top end of the support plate. A water storage tank is installed on the other side of the outer wall of the second test cylinder. A marking and indicating mechanism is installed on the inner side of the first test cylinder. The marking and indicating mechanism includes an opening and closing component, a placement cylinder, and an extension component. The inner side of the placement cylinder is filled with pigment. This utility model has a simple structure and is easy to operate, making it convenient for staff to quickly identify and locate leaks during sealing performance testing, facilitating maintenance after testing and further improving its practicality in actual use.

Description

Technical Field

[0001] This utility model relates to the field of sand-filled pipe testing technology, specifically to a fiberglass sand-filled pipe sealing performance testing device. Background Technology

[0002] In today's infrastructure construction and industrial sectors, fiberglass reinforced plastic (FRP) pipes are widely used in numerous engineering projects due to their lightweight, high strength, and excellent corrosion resistance, such as water supply and drainage systems and chemical pipelines. In practical applications, the sealing performance of FRP pipes is crucial. Poor sealing can lead to leakage of the transported medium, affecting the normal operation of the project. For example, in water supply and drainage systems, this can cause water waste; in chemical pipelines, it can lead to the leakage of hazardous chemicals, endangering personnel safety and polluting the environment. Long-term leakage can also have adverse effects on the environment surrounding the pipeline. Poor sealing can lead to leakage of the transported medium, affecting the normal operation of the project. When water is poured into the inside of the pipe for testing, the existing sealing test equipment may not be able to quickly detect and record any small damage points that allow water droplets to seep out, or the records may be incomplete. This will affect the efficiency of repairing the pipe after the test is completed. Utility Model Content

[0003] The purpose of this utility model is to provide a fiberglass reinforced plastic (FRP) sand-filled pipe sealing performance test device to solve the problem mentioned in the background art that when water is poured into the inner side of the pipe for testing, if there are small damage points and water droplets seep out, it is difficult for the observer to quickly detect and record them, or the records are incomplete, which in turn affects the efficiency of pipe repair after the test is completed.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A fiberglass reinforced plastic (FRP) sand-filled pipe sealing test device includes a connecting seat, a first test cylinder mounted on one side of the connecting seat, an electric telescopic rod mounted on the outer wall of the connecting seat below the first test cylinder, an extension rod mounted on the output end of the electric telescopic rod, a support plate mounted on the top end of the extension rod, a second test cylinder mounted on one top end of the support plate, a water storage tank mounted on the other side of the outer wall of the second test cylinder, and a marking and indicating mechanism mounted on the inner side of the first test cylinder. The marking and indicating mechanism includes an opening and closing component, a placement cylinder, and an extension component. The inner side of the placement cylinder is filled with pigment. The opening and closing component is used to open and close the port of the placement cylinder, and the extension component is used to open the mixing port of the placement cylinder when water is injected.

[0006] As a preferred embodiment of this utility model, the opening and closing component includes a slot at one end of the top of the placement cylinder, the bottom end of the placement cylinder is fixedly connected to the inner wall of the second test cylinder, a cover plate is slidably connected to the inner side of the slot, and a magnetic block is embedded in the inner wall of the slot.

[0007] As a preferred embodiment of this utility model, an iron block that is attracted to the magnetic block is embedded at one bottom end of the cover plate, a sealing hole is opened on one side of the slot at the top of the placement cylinder, the protruding end of the other bottom side of the cover plate is slidably connected to the sealing hole, and a first sealing ring is embedded at the joint between the outer wall of the cover plate and the inner wall of the sealing hole.

[0008] As a preferred embodiment of this utility model, a first mounting plate is installed on one end of the outer wall of the placement cylinder near the slot, and a first spring is installed on both ends of the other side of the first mounting plate. A second mounting plate is installed on the other end of the first spring, and a pull ring is rotatably connected to the other side of the second mounting plate. An insertion hole extending into the inside of the cover plate is opened on the outer wall of the placement cylinder, and an insertion rod is slidably connected to the inside of the insertion hole. The insertion rod is slidably connected to the first mounting plate, and the other end of the insertion rod is fixedly connected to one side of the second mounting plate.

[0009] As a preferred embodiment of this utility model, the extension assembly includes a sliding groove formed inside the placement cylinder near the top, a closing plate slidably connected to the inner side of the sliding groove, sealing gaskets embedded on both sides of the closing plate, a connecting block installed at the top of the closing plate, and a hollow ball installed at the top of the connecting block.

[0010] As a preferred embodiment of this utility model, limit grooves are provided on both sides of the inner wall of the placement cylinder near the sliding groove. A limit plate is slidably connected to the inner side of the limit groove. The other end of the limit plate is fixedly connected to the outer wall of the hollow ball. A second spring is installed between the outer wall of the limit plate and the inner wall of the limit groove.

[0011] As a preferred embodiment of this utility model, a water inlet is installed at the top of the water storage tank, a water pump is installed on one side of the outer wall of the water storage tank, a first branch pipe extending to the inside of the water storage tank is installed at the pumping end of the water pump, a second branch pipe extending to the inside of the second test cylinder is installed at the pumping end of the water pump, a one-way valve is installed on the second branch pipe, and a second sealing ring is embedded at the opposite ends of the first test cylinder and the second test cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, the fiberglass reinforced plastic (FRP) sand-filled pipe to be tested is overlapped on the top surface of the support plate, placing it between the first and second test cylinders. A second sealing ring is embedded at the opposite ends of the first and second test cylinders to ensure the sealing of the connection between the sand-filled pipe and the test cylinder, reducing the possibility of water leakage during the experiment. An opening and closing component is used to open and close the port of the placement cylinder, and an extension component opens the mixing port of the placement cylinder when water is injected. The structure is simple and easy to operate, allowing staff to quickly identify and locate leaks during sealing tests, facilitating maintenance after testing and further improving its practicality in actual use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a partial cross-sectional view of the first and second test cylinders of this utility model;

[0016] Figure 3 This is a partial cross-sectional view of the placement cylinder of this utility model.

[0017] In the diagram: 1. Connecting seat; 2. First test cylinder; 3. Electric telescopic rod; 4. Support plate; 5. Second test cylinder; 6. Water storage tank; 7. Placement cylinder; 8. Cover plate; 9. Magnetic block; 10. First spring; 11. Insert rod; 12. Hollow ball; 13. Limiting plate; 14. Second spring; 15. Water pump; 16. First branch pipe; 17. Second branch pipe; 18. One-way valve; 19. Second sealing ring; 20. Closing plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Example: Please refer to Figures 1-3 This utility model provides a technical solution:

[0020] A fiberglass reinforced plastic (FRP) sand-filled pipe sealing test device includes a connecting base 1, a first test cylinder 2 installed on one side of the connecting base 1, an electric telescopic rod 3 installed on the outer wall of the connecting base 1 below the first test cylinder 2, a second test cylinder 5 installed at one end of the top of a support plate 4, a water storage tank 6 installed on the other side of the outer wall of the second test cylinder 5, and a marking and indicating mechanism installed inside the first test cylinder 2. The marking and indicating mechanism includes an opening and closing component, a placement cylinder 7, and an extension component. The inside of the placement cylinder 7 is filled with pigment. The opening and closing component is used to open and close the port of the placement cylinder 7, and the extension component is used to open the mixing port of the placement cylinder 7 when water is added. In use, the device can open and close the port of the placement cylinder 7 through the opening and closing component, and open the mixing port of the placement cylinder 7 through the extension component when water is added. The device has a simple structure and is easy to operate, making it convenient for staff to quickly identify and find leaks during sealing tests, so that maintenance can be carried out after the test is completed, further improving its practicality in actual use.

[0021] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the first test cylinder 2 and the second test cylinder 5 are both fitted with second sealing rings 19 at their opposite ends. First, the fiberglass reinforced plastic (FRP) pipe to be tested is placed on the top surface of the support plate 4, so that it is positioned between the first test cylinder 2 and the second test cylinder 5. The second sealing rings 19 fitted at the opposite ends of the first test cylinder 2 and the second test cylinder 5 are used to ensure the sealing of the connection between the FRP pipe and the test cylinder, thereby reducing the possibility of water leakage during the experiment.

[0022] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the output end of the electric telescopic rod 3 is equipped with an extension rod, and the top of the extension rod is equipped with a support plate 4. Then, the electric telescopic rod 3 is activated, and the output end of the electric telescopic rod 3 pushes the extension rod, thereby moving the support plate 4 and the top second test cylinder 5 closer to the first test cylinder 2, so that the fiberglass reinforced plastic pipe that is connected to the first test cylinder 2 and the second test cylinder 5 is in a horizontal and stable state.

[0023] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the opening and closing assembly includes a slot at one end of the top of the placement cylinder 7. The bottom end of the placement cylinder 7 is fixedly connected to the inner wall of the second test cylinder 5. A cover plate 8 is slidably connected to the inside of the slot. A magnetic block 9 is embedded in the inner wall of the slot. An iron block that attracts the magnetic block 9 is embedded in one end of the bottom of the cover plate 8. A sealing hole is opened on one side of the top of the placement cylinder 7 located in the slot. The protruding end of the bottom of the cover plate 8 on the other side is slidably connected to the sealing hole. A first sealing ring is embedded at the joint between the outer wall of the cover plate 8 and the inner wall of the sealing hole. A first mounting plate is installed on one end of the outer wall of the placement cylinder 7 near the slot. A first spring 10 is installed on both ends of the other side of the first mounting plate. A second mounting plate is installed on the other end of the first spring 10. A pull ring is rotatably connected to the other side of the second mounting plate. An extension extending into the cover plate 8 is opened on the outer wall of the placement cylinder 7. The insertion hole of the part has a sliding connection to the inner side of the insertion hole, and the insertion rod 11 is slidably connected to the first mounting plate. The other end of the insertion rod 11 is fixedly connected to one side of the second mounting plate. Further, before the experiment begins, the pigment is poured into the sealing hole. The pigment is a water-soluble powder pigment. Then, the cover plate 8, the slot, and the sealing hole are aligned and fitted. Under the adsorption of the magnetic block 9 and the iron block, the cover plate 8 tightly covers the slot at one end of the top of the placement cylinder 7. At the same time, the protruding end of the other side of the bottom of the cover plate 8 is inserted into the sealing hole, and the first sealing ring further enhances the sealing effect to prevent external impurities or moisture from entering the interior of the placement cylinder 7. At this time, the pull ring is released, and the second mounting plate is no longer stretched by the two sets of first springs 10, so that the insertion rod 11 is reset and inserted into the insertion hole, fixing the cover plate 8 in the closed position.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the extension assembly includes a sliding groove opened inside the placement cylinder 7 near the top. A closing plate 20 is slidably connected to the inside of the sliding groove. Sealing gaskets are embedded on both sides of the closing plate 20. A connecting block is installed at the top of the closing plate 20, and a hollow ball 12 is installed at the top of the connecting block. Limiting grooves are opened on both sides of the inner wall of the placement cylinder 7 near the sliding groove. A limiting plate 13 is slidably connected to the inside of the limiting groove. The other end of the limiting plate 13 is fixedly connected to the outer wall of the hollow ball 12. A second spring 14 is installed between the outer wall of the limiting plate 13 and the inner wall of the limiting groove. A water inlet is installed at the top of the water storage tank 6. A water pump 15 is installed on one side of the outer wall of the water storage tank 6. A first branch pipe 16 extending to the inside of the water storage tank 6 is installed at the water pump 15's pumping end. A second branch pipe 17 extending to the inside of the second test cylinder 5 is installed at the water pump 15's outlet end. A one-way valve 18 is installed on the second branch pipe 17. Furthermore, when the water pump 15 is started, the water pump 15 passes through the first A pipe 16 draws water from the water storage tank 6 and then injects the water into the second test cylinder 5 through a second pipe 17. Since a one-way valve 18 is installed on the second pipe 17, it can prevent the pigment and water from flowing back into the water pump 15 and affecting the subsequent use of the water pump 15. As water is gradually injected into the second test cylinder 5, the water level in the cylinder and the sand-filled pipe rises. As the water level in the second test cylinder 5 continues to rise, the hollow ball 12 floats upward due to buoyancy, causing the limiting plate 13 to slide in the limiting groove and stretch the second spring 14 to extend, generating an upward pulling force on the closing plate 20. The closing plate 20 drives the sealing gasket to move upward, and the mixing port of the placement cylinder 7 opens. At this time, the placement cylinder 7 can communicate with the inside of the second test cylinder 5, mixing the pigment and water placed in the cylinder. The dyed water can enter the inside of the leak point of the fiberglass sand-filled pipe, and the color of the seeping dyed water is more obvious, making the leak point clearly visible, which is convenient for subsequent repair and maintenance by the staff.

[0025] The implementation principle of the fiberglass reinforced plastic (FRP) sand-filled pipe sealing performance testing device in this application embodiment is as follows: The FRP sand-filled pipe to be tested is overlapped on the top surface of the support plate 4, placing it between the first test cylinder 2 and the second test cylinder 5. The second sealing ring 19, embedded at the opposite ends of the first test cylinder 2 and the second test cylinder 5, ensures the sealing performance of the connection between the sand-filled pipe and the test cylinder, reducing the possibility of water leakage during the experiment. Then, the electric telescopic rod 3 is activated. The output end of the electric telescopic rod 3 pushes the extension rod, thereby moving the support plate 4 and the top second test cylinder 5 closer to the first test cylinder 2. This ensures that the fiberglass reinforced plastic (FRP) tubes connected to the first test cylinder 2 and the second test cylinder 5 are in a horizontal and stable state. Before the experiment begins, the pigment is poured into the tube through the sealing hole. The pigment used is a water-soluble powder. Then, the cover plate 8, slot, and sealing hole are aligned and fitted together. Under the attraction of the magnet 9 and the iron block, the cover plate 8 tightly covers the slot at one end of the top of the placement cylinder 7. At the same time, the protruding end on the other side of the bottom of the cover plate 8 is inserted into the sealing hole, and the first sealing ring further enhances the sealing effect, preventing external impurities or moisture from entering the interior of the placement cylinder 7. At this point, the cover plate 8 is released. Pulling the ring prevents the second mounting plate from stretching the two sets of first springs 10, causing the insertion rod 11 to return to its original position and insert into the insertion hole, fixing the cover plate 8 in the closed position. The water pump 15 is then started. The water pump 15 draws water from the water storage tank 6 through the first branch pipe 16, and then injects the water into the second test cylinder 5 through the second branch pipe 17. Because a one-way valve 18 is installed on the second branch pipe 17, it prevents pigment and water from flowing back into the water pump 15, affecting its subsequent use. As water gradually enters the second test cylinder 5, the water level inside the cylinder and the sand-filled pipe rises. As the water level in the second test cylinder 5 continues to rise... As it continues to rise, the hollow ball 12 floats upward due to buoyancy, causing the limiting plate 13 to slide within the limiting groove and stretch the second spring 14, generating an upward pulling force on the closing plate 20. The closing plate 20 moves the sealing gasket upward, and the mixing port of the placement cylinder 7 opens. At this time, the placement cylinder 7 can communicate with the inside of the second test cylinder 5, mixing the pigment and water placed inside the cylinder. The dyed water can enter the inside of the leak point of the fiberglass reinforced sand pipe, making the color of the seeping dyed water more obvious, so that the leak point can be clearly displayed, making it easier for subsequent staff to repair and maintain.

[0026] The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0027] 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 test device for the sealing performance of fiberglass reinforced plastic (FRP) sand-filled pipe, comprising a connecting seat (1), characterized in that: A first test cylinder (2) is installed on one side of the connecting seat (1). An electric telescopic rod (3) is installed on the outer wall of the connecting seat (1) below the first test cylinder (2). An extension rod is installed at the output end of the electric telescopic rod (3). A support plate (4) is installed at the top of the extension rod. A second test cylinder (5) is installed at one end of the top of the support plate (4). A water storage tank (6) is installed on the other side of the outer wall of the second test cylinder (5). A marking and prompting mechanism is installed on the inner side of the first test cylinder (2). The marking and prompting mechanism includes an opening and closing component, a placement cylinder (7), and an extension component. The inner side of the placement cylinder (7) is filled with pigment. The opening and closing component is used to open and close the port of the placement cylinder (7). The extension component is used to open the mixing port of the placement cylinder (7) when water is injected.

2. The fiberglass reinforced plastic (FRP) sand-filled pipe sealing test device according to claim 1, characterized in that: The opening and closing assembly includes a slot at one end of the top of the placement cylinder (7), the bottom end of the placement cylinder (7) is fixedly connected to the inner wall of the second test cylinder (5), a cover plate (8) is slidably connected to the inside of the slot, and a magnetic block (9) is embedded in the inner wall of the slot.

3. The fiberglass reinforced plastic (FRP) sand-filled pipe sealing test device according to claim 2, characterized in that: An iron block that attracts the magnetic block (9) is embedded in one end of the bottom of the cover plate (8). A sealing hole is opened on one side of the slot at the top of the placement cylinder (7). The protruding end of the bottom of the cover plate (8) is slidably connected to the sealing hole. A first sealing ring is embedded in the part where the outer wall of the cover plate (8) fits against the inner wall of the sealing hole.

4. The fiberglass reinforced plastic (FRP) sand-filled pipe sealing test device according to claim 3, characterized in that: A first mounting plate is installed on one end of the outer wall of the placement cylinder (7) near the slot. A first spring (10) is installed on both ends of the other side of the first mounting plate. A second mounting plate is installed on the other end of the first spring (10). A pull ring is rotatably connected to the other side of the second mounting plate. An insertion hole extending into the cover plate (8) is opened on the outer wall of the placement cylinder (7). An insertion rod (11) is slidably connected to the inside of the insertion hole. The insertion rod (11) is slidably connected to the first mounting plate. The other end of the insertion rod (11) is fixedly connected to one side of the second mounting plate.

5. The fiberglass reinforced plastic (FRP) sand-filled pipe sealing test device according to claim 4, characterized in that: The extension assembly includes a sliding groove opened inside the placement cylinder (7) near the top end, a closing plate (20) is slidably connected to the inside of the sliding groove, sealing gaskets are embedded on both sides of the closing plate (20), a connecting block is installed at the top end of the closing plate (20), and a hollow ball (12) is installed at the top end of the connecting block.

6. The fiberglass reinforced plastic (FRP) sand-filled pipe sealing test device according to claim 5, characterized in that: Limiting grooves are provided on both sides of the inner wall of the placement cylinder (7) near the sliding groove. A limiting plate (13) is slidably connected to the inner side of the limiting groove. The other end of the limiting plate (13) is fixedly connected to the outer wall of the hollow ball (12). A second spring (14) is installed between the outer wall of the limiting plate (13) and the inner wall of the limiting groove.

7. The fiberglass reinforced plastic (FRP) sand-filled pipe sealing test device according to claim 6, characterized in that: A water inlet is installed at the top of the water storage tank (6), and a water pump (15) is installed on one side of the outer wall of the water storage tank (6). A first branch pipe (16) extending to the inside of the water storage tank (6) is installed at the pumping end of the water pump (15), and a second branch pipe (17) extending to the inside of the second test cylinder (5) is installed at the outlet end of the water pump (15). A one-way valve (18) is installed on the second branch pipe (17), and a second sealing ring (19) is embedded in the opposite ends of the first test cylinder (2) and the second test cylinder (5).

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