A pipeline connecting device for hydraulic engineering
By setting up a detection mechanism at the connection of water conservancy project pipelines, and using sponge blocks and strips to absorb leaks and push the two-color rings to indicate the leak, the problem of difficult-to-detect pipeline connection leaks is solved, achieving the effect of timely detection and cost savings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN ANGE CONSTR CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-23
AI Technical Summary
Existing water conservancy project pipeline connection devices are prone to leakage after years of use, and minor leaks are difficult to detect in time, leading to water waste.
A pipe connection device was designed. By setting a detection mechanism at the connection point, a rectangular block is moved down after the sponge block and sponge strip absorb the leakage water and increase the weight. The control board drives the two-color ring to change color to indicate the leakage in the channel, which facilitates timely detection of leakage.
It enables the timely detection of minor leaks, avoids water waste, and has a simple structure, is inexpensive to manufacture, and is suitable for widespread use.
Smart Images

Figure CN224397374U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy pipeline connection technology, and in particular to a pipeline connection device for water conservancy projects. Background Technology
[0002] Water conservancy projects include the design and construction of hydraulic structures such as hydropower stations, dams, and sluice gates, as well as flood control, irrigation, and water supply projects. Correspondingly, in order to conduct water flow in water conservancy projects, pipelines need to be laid, and different pipelines need to be connected to form a complete pipeline.
[0003] Patent publication number CN222687593U discloses a pipe connection device for water conservancy projects, including a pipe. A connecting assembly is provided on the outer wall of the pipe. The connecting assembly includes a sleeve plate, a positioning plate elastically connected to the sleeve plate via a compression spring, a slider fixedly connected to the upper surface of the positioning plate, a through groove at the right end of the inner wall of the positioning plate, a sealing assembly on the upper surface of the slider, and a rubber ring. A slot is provided on the front surface of the pipe, and a locking block is slidably connected through the upper surface of the pipe. Through the cooperation of the sleeve plate, compression spring, positioning plate, slider, rubber ring, locking block, slot, and through groove, multiple pipe sets can be installed without bolts, enabling rapid assembly and ensuring a tight seal during connection. This reduces installation time, improves efficiency, and requires no tools, minimizing limitations.
[0004] The above devices achieve rapid assembly and ensure sealing of pipes. However, in the actual pipeline laying process of water conservancy projects, the pipe connection points are prone to leakage as the service life increases. If a leak at the pipe connection point is not detected and dealt with by the staff in time, it will cause a large waste of water resources. In particular, when the water flow at the leak point is very small, it is even more difficult to detect in time. Therefore, a pipe connection device for water conservancy projects is proposed to solve the above problems. Utility Model Content
[0005] To address the aforementioned problems, this utility model provides a pipe connection device for water conservancy projects.
[0006] The present invention provides a pipeline connection device for water conservancy projects, which adopts the following technical solution:
[0007] A pipe connection device for water conservancy projects includes a first pipe and a second pipe. A first connector is fixedly connected to one end of the first pipe, and a second connector is fixedly connected to one end of the second pipe. The second connector extends into the interior of the first connector and matches the first connector. A detection mechanism is provided on the second connector.
[0008] The detection mechanism includes a first outer frame plate, which is fixedly connected to the outside of the first connector. A second outer frame plate is fixedly connected to the outside of the second connector. A cavity is formed inside the outer wall of the second outer frame plate, and a two-color ring is slidably connected inside the cavity. A through groove is formed on the second outer frame plate, which communicates with the cavity. A rectangular plate is provided on the inner side of the second outer frame plate, and a sponge block is fixedly connected to the rectangular plate. Arc-shaped plates are fixedly connected to both sides of the rectangular plate, and sponge strips are fixedly connected to the arc-shaped plates. An extension plate is fixedly connected to the rectangular plate, and a control plate is connected to the extension plate via a pivot. One end of the control plate is connected to the inner wall of the two-color ring via a pivot.
[0009] By adopting the above technical solution, the first pipe and the second pipe are spliced together through the first connector and the second connector to form a stable connection. When the connection is completed, if a leak occurs, the leaked water will be absorbed by the sponge block and sponge strip. The weight of the absorbed sponge block and sponge strip will increase, causing the rectangular block to move down as a whole. This will cause the control board to push the dual-color ring. At this time, the area on the dual-color ring that is different from the previous color will stay in the through groove position. The user can directly know the leakage situation after the pipe connection by observing the change in the extension of the dual-color ring, avoiding the situation where a minor leak cannot be detected in time.
[0010] Preferably, the second outer frame plate extends into the interior of the first outer frame plate and matches the first outer frame plate, and the through slots are distributed in a circumferential manner at equal intervals on the second outer frame plate.
[0011] By adopting the above technical solution, the second outer frame panel and the first outer frame panel are spliced together.
[0012] Preferably, a spring sheet is fixedly connected to the inner sidewall of the second outer frame plate, and the spring sheet is fixedly connected to the bottom of the rectangular plate.
[0013] By adopting the above technical solution, the reed provides elastic thrust to the rectangular plate.
[0014] Preferably, a limiting rod is fixedly connected to the inner sidewall of the second outer frame plate, and the limiting rod tube penetrates the rectangular plate.
[0015] By adopting the above technical solution, the limiting rod limits the rectangular plate, enabling the rectangular plate to move smoothly up and down.
[0016] Preferably, a sealing ring is fixedly connected to one end of the second connector, and the sealing ring is in contact with the inner sidewall of the first connector.
[0017] By adopting the above technical solution, the sealing ring seals the connection between the second connector and the second connector.
[0018] Preferably, a threaded fixing rod is fixedly connected to the first connector head, the threaded fixing rod penetrates one side wall of the second connector head, and a positioning ring is provided on the outside of the threaded fixing rod, the positioning ring being in contact with one side of the second connector head.
[0019] By adopting the above technical solution, the positioning ring is tightened on the threaded fixing ring to fix the first connector and the second connector.
[0020] Preferably, the threaded fixing rods are distributed around the first connecting head at equal intervals, and the threaded fixing rods pass through the positioning ring and are connected to the positioning ring by threads.
[0021] By adopting the above technical solution, multiple threaded fixing rods can ensure the stability of the first connector and the second connector after connection.
[0022] In summary, this utility model has the following beneficial technical effects:
[0023] 1. A pipe connection device for water conservancy projects, through the design of the detection mechanism, after the first pipe and the second pipe are connected, if leakage occurs, the leaked water will be absorbed by the sponge block and sponge strip. The weight of the absorbed sponge block and sponge strip will increase, causing the rectangular block to move down as a whole, which will cause the control plate to push the two-color ring. At this time, the area on the two-color ring that is different from the previous color stays in the through groove position. The user can directly know the leakage after the pipe connection by the change in the extension of the two-color ring, avoiding the situation where a slight leak cannot be detected in time.
[0024] 2. A pipe connection device for water conservancy projects, in which users can visually observe the color change of the two-color rings through the through groove to determine if there is a leak in the pipe connection. While achieving the above functions, the device has a simple structural design, which is more conducive to production and manufacturing and saves on usage costs, making it more suitable for widespread use. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0027] Figure 3 This is a split view of the first outer frame plate and the second outer frame plate in this utility model;
[0028] Figure 4 This is a cross-sectional view of the first outer frame plate in this utility model;
[0029] Figure 5 This is a cross-sectional view of the second outer frame plate in this utility model;
[0030] Figure 6for Figure 5 Enlarged view of point A in the image;
[0031] Figure 7 This is a schematic diagram of the rectangular plate in this utility model;
[0032] Figure 8 for Figure 7 Enlarged view of point B in the image;
[0033] Figure 9 This is a schematic diagram of the two-color ring structure in this utility model.
[0034] Explanation of reference numerals in the attached drawings: 1. First pipe; 2. Second pipe; 3. First connector; 4. Second connector; 5. Detection mechanism; 51. First outer frame plate; 52. Second outer frame plate; 53. Cavity; 54. Through groove; 55. Rectangular plate; 56. Sponge block; 57. Arc plate; 58. Sponge strip; 59. Extension plate; 591. Control plate; 592. Two-color ring; 593. Spring; 594. Limiting rod; 595. Sealing ring; 6. Threaded fixing rod; 7. Positioning ring. Detailed Implementation
[0035] The following is in conjunction with the appendix Figure 1 - Appendix Figure 9 The present invention will be described in further detail below.
[0036] This utility model discloses a pipe connection device for water conservancy projects. (Refer to...) Figures 1-9 It includes a first pipe 1 and a second pipe 2. One end of the first pipe 1 is fixedly connected to a first connector 3, and one end of the second pipe 2 is fixedly connected to a second connector 4. The second connector 4 extends into the interior of the first connector 3 and matches the first connector 3. A detection mechanism 5 is provided on the second connector 4.
[0037] The testing mechanism 5 includes a first outer frame plate 51, which is fixedly connected to the outside of the first connector 3. A second outer frame plate 52 is fixedly connected to the outside of the second connector 4. A cavity 53 is opened inside the outer wall of the second outer frame plate 52. A two-color ring 592 is slidably connected inside the cavity 53. A through groove 54 is opened on the second outer frame plate 52 and communicates with the cavity 53. A rectangular plate 55 is provided on the inner side of the second outer frame plate 52. A sponge block 56 is fixedly connected to the rectangular plate 55. An arc plate 57 is fixedly connected to both sides of the rectangular plate 55. A sponge strip 58 is fixedly connected to the arc plate 57.
[0038] An extension plate 59 is fixedly connected to a rectangular plate 55. A control plate 591 is connected to the extension plate 59 via a pivot. One end of the control plate 591 is connected to the inner wall of the two-color ring 592 via a pivot. The first pipe 1 and the second pipe 2 are spliced together by the first connector 3 and the second connector 4 to form a stable connection. When the connection is complete, if a leak occurs, the leaked water will be absorbed by the sponge block and sponge strip 58. The weight of the absorbed sponge block and sponge strip 58 will increase, causing the rectangular block to move downwards. This will cause the control plate 591 to push the two-color ring 592. At this time, the area on the two-color ring 592 that is different from the previous color will stay at the position of the through groove 54. The user can directly know the leakage situation after the pipe connection by the extension change of the two-color ring 592, avoiding the situation where a slight leak cannot be detected in time.
[0039] The second outer frame plate 52 extends into the interior of the first outer frame plate 51 and matches the first outer frame plate 51. The through grooves 54 are evenly distributed around the second outer frame plate 52. The second outer frame plate 52 and the first outer frame plate 51 are spliced together. A spring plate 593 is fixedly connected to the inner side wall of the second outer frame plate 52. The spring plate 593 is fixedly connected to the bottom of the rectangular plate 55. The spring plate 593 provides elastic thrust to the rectangular plate 55. A limit rod 594 is fixedly connected to the inner side wall of the second outer frame plate 52. The limit rod 594 passes through the rectangular plate 55 and limits the rectangular plate 55, so that the rectangular plate 55 moves smoothly up and down. A sealing ring 595 is fixedly connected to one end of the second connector 4. The sealing ring 595 fits against the inner side wall of the first connector 3 and seals the connection between the second connector 4 and the first connector 3.
[0040] A threaded fixing rod 6 is fixedly connected to the first connector 3. The threaded fixing rod 6 passes through one side wall of the second connector 4. A positioning ring 7 is provided on the outside of the threaded fixing rod 6. The positioning ring 7 fits against one side of the second connector 4. The positioning ring 7 is tightened on the threaded fixing ring to fix the first connector 3 and the second connector 4. The threaded fixing rods 6 are evenly distributed around the first connector 3. The threaded fixing rods 6 pass through the positioning ring 7 and are connected to the positioning ring 7 by threads. Multiple threaded fixing rods 6 can ensure the stability of the first connector 3 and the second connector 4 after connection.
[0041] In actual operation, the rectangular plate 55 is set below the first pipe 1 and the second pipe 2. When this device is used, when the first pipe 1 and the second pipe 2 are connected, the second connector 4 is aligned with the first connector 3 and inserted. At this time, the threaded fixing rod 6 penetrates one side wall of the second connector 4. Then, the positioning ring 7 is tightened on the outside of the threaded fixing rod 6 to ensure a tight connection between the first connector 3 and the second connector 4. The sealing ring 595 on the second connector 4 can improve the sealing performance after the connection between the two.
[0042] As the first connector 3 and the second connector 4 are assembled, the second outer frame plate 52 is also inserted into the first outer frame plate 51 to form a complete outer frame. The two-color ring 592 in this device is sprayed with different colors on its left and right sides. The width of the through groove 54 is equal to the width of a single color area in the two-color ring 592. When the sponge strip 58 and the sponge block are kept dry, due to the elastic pushing force of the spring 593 on the rectangular plate 55, one of the extended areas of the two-color ring 592 can be made to stay outside the through groove 54. At this time, it means that the connection and sealing of the first connector 3 and the second connector 4 are intact.
[0043] When there is a leak between the first connector 3 and the second connector 4, the leaked water will be absorbed by the sponge block and sponge strip 58. After absorbing water, the weight of the sponge block and sponge strip 58 increases until the total weight exceeds the elastic thrust of the spring 593. Then, the rectangular block moves downward, which drives the extension plate 59 to move. The extension plate 59 drives the control plate 591 to flip and swing. The control plate 591 drives the dual-color ring 592 to move until the other color area stops at the position of the through groove 54. The user can see the color change on the dual-color ring 592 through the through groove 54 to determine if there is a leak in the pipe connection. This allows for timely inspection and troubleshooting, effectively avoiding the situation where minor leaks after pipe connection are not easily detected in time.
[0044] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A pipeline connection device for hydraulic engineering, characterized in that: It includes a first pipe (1) and a second pipe (2). One end of the first pipe (1) is fixedly connected to a first connector (3), and one end of the second pipe (2) is fixedly connected to a second connector (4). The second connector (4) extends into the interior of the first connector (3) and matches the first connector (3). A detection mechanism (5) is provided on the second connector (4). The detection mechanism (5) includes a first outer frame plate (51), which is fixedly connected to the outside of the first connector (3). A second outer frame plate (52) is fixedly connected to the outside of the second connector (4). A cavity (53) is formed inside the outer wall of the second outer frame plate (52). A two-color ring (592) is slidably connected inside the cavity (53). A through groove (54) is formed on the second outer frame plate (52), which communicates with the cavity (53). A rectangular plate (55) is provided on the inner side of the outer frame plate (52). A sponge block (56) is fixedly connected to the rectangular plate (55). An arc plate (57) is fixedly connected to both sides of the rectangular plate (55). A sponge strip (58) is fixedly connected to the arc plate (57). An extension plate (59) is fixedly connected to the rectangular plate (55). A control plate (591) is connected to the extension plate (59) through a pivot. One end of the control plate (591) is connected to the inner wall of the two-color ring (592) through a pivot.
2. A pipe coupling device for hydraulic engineering according to claim 1, characterized in that: The second outer frame plate (52) extends into the interior of the first outer frame plate (51) and matches the first outer frame plate (51), and the through grooves (54) are distributed around the second outer frame plate (52) at equal intervals.
3. The pipe coupling device for hydraulic engineering of claim 1, wherein: A spring sheet (593) is fixedly connected to the inner wall of the second outer frame plate (52), and the spring sheet (593) is fixedly connected to the bottom of the rectangular plate (55).
4. The pipe coupling device for hydraulic engineering of claim 1, wherein: A limiting rod (594) is fixedly connected to the inner wall of the second outer frame plate (52), and the limiting rod (594) passes through the rectangular plate (55).
5. The pipe coupling device for hydraulic engineering of claim 1, wherein: A sealing ring (595) is fixedly connected to one end of the second connector (4), and the sealing ring (595) is in contact with the inner side wall of the first connector (3).
6. The pipe coupling device for hydraulic engineering of claim 1, wherein: A threaded fixing rod (6) is fixedly connected to the first connector (3). The threaded fixing rod (6) passes through one side wall of the second connector (4). A positioning ring (7) is provided on the outside of the threaded fixing rod (6). The positioning ring (7) is in contact with one side of the second connector (4).
7. The pipe coupling device for hydraulic engineering of claim 6, wherein: The threaded fixing rods (6) are evenly spaced around the first connector (3), and the threaded fixing rods (6) pass through the positioning ring (7) and are connected to the positioning ring (7) by threads.