Safety detection device for water delivery system of hydropower station

Abstract

A hydropower station water delivery system safety detection device disclosed by the present invention comprises a water delivery pipe body, a connecting flange pipe and a pressure detection mechanism, the two ends of the water delivery pipe body are both fixedly communicated with the connecting flange pipe, and the water delivery pipe body and the connecting flange pipe are both provided with clamping arm frames. The ends, close to each other, of the two connecting flange pipes fixedly communicate with a mounting pipe, a protective shell is mounted on the surface of the mounting pipe, and the pressure detection mechanism is arranged on the surface of the mounting pipe and located in the protective shell. Through the arrangement of the pressure detection mechanism, the pressure in the water delivery pipe is detected, and meanwhile, the strain measurement rod is used for measuring the deformation of the pipeline, so that the pressure of the pipeline in the water delivery system of the whole hydropower station is effectively and conveniently detected, operated and used. Through the arrangement of the mounting mechanism, quick assembly and disassembly, reliable locking and effective sealing of the connecting part of the water delivery pipeline of the hydropower station are realized.

Description

Technical Field

[0001] This invention belongs to the field of water conveyance system safety detection technology, and particularly relates to a safety detection device for a hydropower station water conveyance system. Background Technology

[0002] The purpose of safety monitoring devices for hydropower station water transmission systems is to monitor various safety parameters of the hydropower station's water transmission pipelines, ensure the normal operation of the system, and prevent potential failures. Such devices typically include multiple sensors, data acquisition units, and control systems, enabling real-time monitoring of the pipeline status and providing alarms and data analysis. The system collects real-time data on the working status inside and outside the pipeline through various sensors installed on the hydropower station's water transmission pipelines, such as those for pressure, flow rate, temperature, and strain. These devices are commonly found in everyday life.

[0003] During the operation of a hydropower station's water transmission system, the pipelines are subject to water pressure. When the pressure exceeds the pipeline's capacity, it can lead to rupture or leakage, rendering the pipeline unusable. Therefore, a device capable of continuously monitoring the safety of the water transmission system is needed. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a safety detection device for a hydropower station water conveyance system.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides a safety detection device for a hydropower station water conveyance system, comprising a water conveyance pipe body, a connecting flange pipe, and a pressure detection mechanism. Both ends of the water conveyance pipe body are fixedly connected to the connecting flange pipe. Clamping arms are installed on both the water conveyance pipe body and the connecting flange pipe. An installation pipe is fixedly connected to one end of the two connecting flange pipes that are close to each other. A protective shell is installed on the surface of the installation pipe. The pressure detection mechanism is disposed on the surface of the installation pipe and is located inside the protective shell.

[0007] Preferably, the pressure detection mechanism includes a connecting pipe, the bottom end of which is fixedly connected to the mounting pipe, a first connecting plate is fixedly connected to the inner wall of the connecting pipe, a first push rod slides through the surface of the first connecting plate, a first piston is fixedly connected to the bottom end of the first push rod, the first piston is slidably connected to the inner wall of the connecting pipe, a first spring is sleeved on the first push rod, and the two ends of the first spring are fixedly connected to the first connecting plate and the first piston, respectively.

[0008] Preferably, a rotating rod is rotatably connected inside the connecting pipe, a gear is fixedly connected to the rotating rod, an eccentric block is fixedly connected to the rotating rod, a rack is fixedly connected to the upper surface of the first push rod, the tooth surface of the rack meshes with the tooth surface of the gear, a display frame is fixedly connected to the upper end of the connecting pipe, a rotating shaft is fixedly connected to the surface of the display frame, an indicator rod is rotatably connected to the rotating shaft, and a first scale is provided on the inner wall surface of the display frame.

[0009] Preferably, sliders are fixedly connected to both sides of the upper end of the first push rod, and grooves are provided on both sides of the inner wall of the connecting tube, with the inner wall of the groove slidably connected to the surface of the slider. The bottom end of the indicator rod is rotatably connected to a pulley, and a limiting groove is formed on the side wall surface of the eccentric block. The bottom surface of the inner wall of the limiting groove is slidably connected to the pulley.

[0010] Preferably, a strain measuring rod is fixedly connected to one side of the mounting tube, an auxiliary plate is fixedly connected to the mounting tube, an adjusting rod is fixedly connected to the strain measuring rod, a connecting rod is rotatably connected to the upper end of the adjusting rod, a rotating rod is fixedly connected to the surface of the auxiliary plate, the rotating rod is rotatably connected to the connecting rod, a moving rod is rotatably connected to one end of the connecting rod, a connecting ring is fixedly connected to the surface of the auxiliary plate, the inner wall of the connecting ring is slidably connected to the moving rod, a second spring is sleeved on the upper part of the moving rod, the two ends of the second spring are respectively fixedly connected to the connecting ring, and a second scale is provided on the auxiliary plate.

[0011] Preferably, the mounting tube is provided with an alarm mechanism on the surface inside the protective shell; The alarm mechanism includes a connecting pipe and several wires. The bottom end of the connecting pipe is fixedly connected to the mounting pipe. A second connecting plate is fixedly connected to the inner wall of the connecting pipe. A second top rod slides through the surface of the second connecting plate. A second piston is fixedly connected to the bottom end of the second top rod. The second piston is slidably connected to the inner wall of the connecting pipe. A top block is fixedly connected to the upper end of the second top rod. A connecting frame is fixedly connected to one side of the connecting tube, a fixing plate is fixedly connected to the inner wall of the connecting frame, an extrusion rod slides through the inner wall of the fixing plate, and an extrusion block is fixedly connected to one end of the extrusion rod near the top block. A third spring is fitted on the extrusion rod, and the two ends of the third spring are fixedly connected to the fixed plate and the extrusion block, respectively. A limit block is fixedly connected to the end of the extrusion rod away from the extrusion block. A limiting tube is fixedly connected to one side of the connecting tube. The surface of the limiting tube slides through the extrusion rod. A fourth spring is fixedly connected to the bottom of the inner wall of the limiting tube. A movable frame is fixedly connected to the upper end of the fourth spring. A limiting hole is opened on the movable frame. An alarm flag is fixedly connected to the upper end of the movable frame. A pull plate is fixedly connected to the extrusion rod, a pull rod is fixedly connected to the movable frame, and a sliding hole is provided on the limiting tube. The inner wall of the sliding hole is slidably connected to the pull rod.

[0012] Preferably, a support frame is fixedly connected to one side of the limiting tube, and an electromagnetic coil body and a power supply block are fixedly connected to the inner wall of the support frame. The power supply block includes a positive terminal and a negative terminal, and a first pin rod is fixedly connected to one side of the support frame. The positive terminal of the power supply block is electrically connected to the first pin rod via a wire. A second pin rod is fixedly connected to one side of the support frame. The second pin rod is electrically connected to one end of the electromagnetic coil body via a wire. The other end of the electromagnetic coil body is electrically connected to a mechanical buzzer via a wire. The negative terminal of the power block is electrically connected to the mechanical buzzer via a wire. The first pin rod is rotatably connected to the first connecting piece, and the first pin rod is fitted with a first coil spring. The two ends of the first coil spring are fixedly connected to the first connecting piece and the first pin rod, respectively. The second pin rod is fixedly connected to a second connecting piece, and one end of the first connecting piece is fixedly connected to a lever. A through hole is provided on the limiting tube, and the inner wall of the through hole slides through the surface of the lever. An auxiliary block is fixedly connected to the moving frame.

[0013] Preferably, the movable frame is provided with a guide groove, and the inner wall surface of the guide groove is slidably connected to the surface of the limiting block.

[0014] Preferably, the mounting pipe and the connecting flange pipe are each provided with a mounting mechanism at their respective ends. The mounting mechanism includes a mounting ring, the inner wall of which is fixedly connected to the mounting pipe. The mounting ring has several mounting brackets, and the inner wall of each mounting bracket is rotatably connected to a mounting rod. The connecting flange pipe is fixedly connected to a mating ring, which has a mating groove. The inner wall of the mating groove engages with the mounting rod. The mounting rod is movably connected to a positioning bracket, one side of which is inserted into the surface of the mating ring. The mounting rod is threadedly connected to a fixing shaft, one side of which abuts against the surface of the positioning shaft.

[0015] Preferably, a second coil spring is fitted at both ends of the inner wall of the mounting bracket, and the second coil spring is fixedly connected to the mounting rod and the mounting bracket respectively. The mounting tube and the inner wall of the connecting flange tube are inserted with the same inner bushing.

[0016] The beneficial effects of this invention are as follows: This invention achieves pressure detection within the water supply pipe by setting up a pressure detection mechanism. Changes in the pipe pressure cause movement of the first piston and first push rod inside the connecting pipe, which in turn causes the first push rod to rotate and adjust the position of the eccentric block. This, in turn, indicates the reading on the display frame using the indicator rod and the first scale. Simultaneously, the strain gauge is used to measure pipe deformation, thus effectively and conveniently detecting the pipe pressure in the entire hydropower station's water supply system.

[0017] This invention, through the design of the alarm mechanism, achieves the movement of the second push rod and the second piston within the connecting tube, thereby effectively and conveniently driving the squeezing rod that slides between the connecting tube and the limiting tube. By adjusting the squeezing blocks at both ends of the squeezing rod and the limiting blocks, the squeezing force generated by the compressed fourth spring within the limiting tube causes the alarm flag fixed at the upper end of the moving frame to rise and fall. Simultaneously, it drives the abutment between the first connecting piece and the second connecting piece on the side wall of the support frame on one side of the limiting tube, thus ensuring that the current supplied by the power block, the electromagnetic coil body, and the mechanical buzzer are in a closed-loop state, enabling rapid operation of the audible alarm.

[0018] This invention achieves the docking and fixing of the installation pipe and the connecting flange pipe by setting up the installation mechanism. The mounting rod on the surface of the installation ring and the docking groove opened on the surface of the docking ring are used for locking and limiting. Then, the positioning frame of the movable mounting rod is used to insert and limit the connection with the surface of the docking ring. This can effectively prevent the installation rod from shifting position, thereby realizing the rapid assembly and disassembly, reliable locking and effective sealing of the connection part of the water transmission pipeline of the hydropower station. Attached Figure Description

[0019] Appendix Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Appendix Figure 2 This is a schematic diagram of the pressure detection mechanism of the present invention; Appendix Figure 3 This is the present invention. Figure 2 A partial structural diagram; Appendix Figure 4 This is the present invention. Figure 3 A magnified structural diagram at point C; Appendix Figure 5 This is a partial structural schematic diagram of the pressure detection mechanism of the present invention; Appendix Figure 6 This is the present invention. Figure 2 A magnified structural diagram at point B; Appendix Figure 7 This is a schematic diagram of the alarm mechanism of the present invention; Appendix Figure 8 This is a partial structural schematic diagram of the alarm mechanism of the present invention; Appendix Figure 9 This is the present invention. Figure 1 A magnified structural diagram at point A; Appendix Figure 10 This is a schematic diagram of the disassembled structure of the installation mechanism of the present invention.

[0020] In the diagram: 1. Water pipe body; 2. Protective shell; 3. Installation pipe; 4. Clamping arm; 5. Connecting flange pipe; 6. Pressure detection mechanism; 601. Connecting pipe; 602. First piston; 603. First connecting plate; 604. First spring; 605. First push rod; 606. Slide groove; 607. Sliding block; 608. Display frame; 609. Rotating shaft; 610. Indicator rod; 611. First scale; 612. Rotating rod; 613. Rack; 614. Gear; 615. Eccentric block; 616. Pulley; 617. Limiting groove; 618. Strain measuring rod; 619. Auxiliary plate; 620. Adjusting rod; 621. Connecting rod; 622. Rotating rod; 623. Connecting ring; 624. Moving rod; 625. Second scale; 626. Second spring; 7. Alarm mechanism; 701. Connecting tube; 702. Limiting tube; 703. Support frame; 704. Second piston; 705. Second top. 706. Rod; 707. Second connecting plate; 708. Top block; 709. Connecting frame; 710. Pressing block; 711. Pressing rod; 712. Third spring; 713. Fixing plate; 714. Pull plate; 715. Fourth spring; 716. Moving frame; 717. Pull rod; 718. Limiting block; 719. Limiting hole; 720. Alarm flag; 721. Sliding hole; 722. Mechanical buzzer; 723. First pin rod; 724. First connecting piece; 725. 4. Second pin rod; 725. Electromagnetic coil body; 726. Wire; 727. Second connecting piece; 728. First coil spring; 729. Through hole; 730. Paddle; 731. Auxiliary block; 732. Guide groove; 733. Power block; 8. Mounting mechanism; 81. Mounting ring; 82. Mounting bracket; 83. Mounting rod; 84. Positioning bracket; 85. Fixed shaft; 86. Inner bushing; 87. Connecting ring; 88. Connecting groove; 89. Second coil spring. Detailed Implementation

[0021] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0022] Example: Reference Figure 1As shown, the present invention provides a safety detection device for a hydropower station water conveyance system, including a water conveyance pipe body 1, a connecting flange pipe 5, and a pressure detection mechanism 6. Both ends of the water conveyance pipe body 1 are fixedly connected to the connecting flange pipe 5. Several clamping arms 4 are installed on both the water conveyance pipe body 1 and the connecting flange pipe 5. An installation pipe 3 is fixedly connected to one end of the two connecting flange pipes 5 that are close to each other. A protective shell 2 is installed on the surface of the installation pipe 3. The pressure detection mechanism 6 is located on the surface of the installation pipe 3 and inside the protective shell 2. An alarm mechanism 7 is provided on the surface of the end of the installation pipe 3 inside the protective shell 2. An installation mechanism 8 is provided at the one end of the installation pipe 3 and the one end of the connecting flange pipe 5 that are close to each other.

[0023] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the pressure detection mechanism 6 includes a connecting pipe 601, the bottom end of which is fixedly connected to the mounting pipe 3. A first connecting plate 603 is fixedly connected to the inner wall of the connecting pipe 601. The first connecting plate 603 can compress and limit the positions of the first push rod 605 and the first piston 602 by means of the extrusion force generated by the first spring 604. The first push rod 605 slides through the surface of the first connecting plate 603. The bottom end of the first push rod 605 is fixedly connected to the first piston 602. The first piston 602 is slidably connected to the inner wall of the connecting pipe 601. The first spring 604 is sleeved on the first push rod 605. The two ends of the first spring 604 are fixedly connected to the first connecting plate 603 and the first piston 602, respectively. The upper inner wall of the connecting pipe 601 rotates. A rotating rod 612 is connected to the rotating rod 612, which supports and fixes the positions of the gear 614 and the eccentric block 615. The gear 614 is fixedly connected to the rotating rod 612, and the gear 614 can mesh with the rack 613, thereby driving the eccentric block 615 to deflect and move. The eccentric block 615 is fixedly connected to the rotating rod 612 near the gear 614, and the eccentric block 615 can drive the indicator rod 610 to squeeze and rotate. The rack 613 is fixedly connected to the upper surface of the first push rod 605, and the tooth surface of the rack 613 meshes with the tooth surface of the gear 614. The upper end of the connecting pipe 601 is fixedly connected to the display frame 608, and the display frame 608 can communicate with the first scale 611 via the indicator rod 610. The pressure reading is displayed. A rotating shaft 609 is fixedly connected to the surface of the display frame 608. The rotating shaft 609 can deflect the position of the indicator rod 610. The indicator rod 610 is rotatably connected to the rotating shaft 609. A first scale 611 is provided on the inner wall surface of the display frame 608. Slider blocks 607 are fixedly connected to both sides of the upper end of the first push rod 605. The sliders 607 can cooperate with the slide grooves 606 to guide and limit the position of the first push rod 605, preventing the first push rod 605 from sliding and deflecting. Slide grooves 606 are provided on both sides of the inner wall of the connecting tube 601. The inner wall of the slide grooves 606 is slidably connected to the surface of the sliders 607. A pulley 616 is rotatably connected to the bottom end of the indicator rod 610. The pulley 616 can effectively reduce friction. A limiting groove 617 is formed on the side wall surface of the eccentric block 615. The limiting groove 617 can guide and protect the position of the pulley 616 to prevent it from sliding off. The bottom surface of the inner wall of the limiting groove 617 is slidably connected to the pulley 616. A strain measuring rod 618 is fixedly connected to one side of the mounting tube 3. The strain measuring rod 618 can be used to measure the strain in a single direction. An auxiliary plate 619 is fixedly connected to the surface of the mounting tube 3 at the position corresponding to the strain measuring rod 618. The auxiliary plate 619 can support and limit the position of the connecting rod 621 and the moving rod 624. An adjusting rod 620 is fixedly connected to the strain measuring rod 618. The upper end of the adjusting rod 620 is rotatably connected to the connecting rod 621. A lever mechanism can be formed between the connecting rod 621 and the rotating rod 622.A rotating rod 622 is fixedly connected to the surface of the auxiliary plate 619. The rotating rod 622 can drive the sliding rod 624 to slide and adjust its position. The rotating rod 622 is rotatably connected to the surface of the connecting rod 621. The end of the connecting rod 621 away from the adjusting rod 620 is rotatably connected to the moving rod 624. A connecting ring 623 is fixedly connected to the surface of the auxiliary plate 619. The inner wall of the connecting ring 623 is slidably connected to the moving rod 624. A second spring 626 is sleeved on the upper end of the moving rod 624. The compressive force generated by the second spring 626 can compress and limit the position of the moving rod 624. The two ends of the second spring 626 are fixedly connected to the moving rod 624 and the connecting ring 623, respectively. A second scale 625 is set on the surface of the auxiliary plate 619 corresponding to the position of the moving rod 624.

[0024] When performing pressure testing on pipelines in a hydropower station's water transmission system, an auxiliary operation can be performed using a pressure testing mechanism 6 installed on the installation pipe 3. When the pressure is too high, the pressure inside the pipeline will cause the first piston 602 and the first push rod 605 inside the connecting pipe 601 to rise. This causes the rack 613 fixed on the upper surface of the first push rod 605 to drive the gear 614 and eccentric block 615 on the rotating rod 612 to rotate. At this time, one side of the eccentric block 615 will squeeze and deflect the indicator rod 610 in the display frame 608, and the upper end of the indicator rod 610 will deflect along the first scale 611 set on the inner wall surface of the display frame 608, thus providing a direct visual reading. The pressure index is displayed, and the deformation pressure of the pipeline can be detected by the strain gauge rod 618 on one side of the installation pipe 3. The deformation of the strain gauge rod 618 can drive the contraction of the adjustment rod 620, thereby stretching the upper end of the adjustment rod 620 against the connecting rod 621 on the surface of the auxiliary plate 619. The connecting rod 621 forms a lever mechanism with the rotating rod 622 fixed on the surface of the auxiliary plate 619. At this time, the connecting rod 621 drives the moving rod 624, which rotates at one end, to slide along the inner wall of the connecting ring 623. The pressure value is displayed by the second scale 625 set on the surface of the auxiliary plate 619, so as to effectively and intuitively detect the pressure of the pipeline.

[0025] Reference Figure 6 , Figure 7 and Figure 8As shown, an alarm mechanism 7 is provided on one end of the mounting tube 3 located inside the protective shell 2. The alarm mechanism 7 includes a connecting tube 701 and several wires 726. The connecting tube 701 can detect pressure and slide and limit the second piston 704 and the second push rod 705. The bottom end of the connecting tube 701 is fixedly connected to the inner wall of the mounting tube 3. A second connecting plate 706 is fixedly connected to the inner wall of the connecting tube 701. The second connecting plate 706 can press and fix the position of the second piston 704 and the second push rod 705 by means of a third spring 711. The second push rod 705 slides through the surface of the second connecting plate 706. The second push rod 705 can move up and down by means of the pressure of the second piston 704. The bottom end of the second push rod 705 is fixed. A second piston 704 is connected, and the second piston 704 is slidably connected to the inner wall of the connecting tube 701. A top block 707 is fixedly connected to the upper end of the second push rod 705. The top block 707 can compress and shrink the position of the extrusion block 709. The cross-section of the top block 707 is conical. A connecting frame 708 is fixedly connected to one side of the upper part of the connecting tube 701. The connecting frame 708 helps to shrink and place the extrusion block 709. A fixing plate 712 is fixedly connected to the inner wall of the connecting frame 708. An extrusion rod 710 slides through the inner wall of the fixing plate 712. The extrusion rod 710 can horizontally move the position of the extrusion block 709 and the limiting rod. The end of the extrusion rod 710 near the top block 707 is fixedly connected to the extrusion block 709. The extrusion block 709 can interact with the top block. 707 is clamped and fixed. The cross-section of the clamping block 709 is wedge-shaped. A third spring 711 is sleeved on the clamping rod 710. The clamping force generated by the third spring 711 can stretch and limit the position of the clamping block 709. The two ends of the third spring 711 are fixedly connected to the fixing plate 712 and the clamping block 709, respectively. The end of the clamping rod 710 away from the clamping block 709 is fixedly connected to a limiting block 717. The limiting block 717 can squeeze the fourth spring 714 in the limiting tube 702 by means of the guide groove 732 and the limiting hole 718 opened on the surface of the moving frame 715. The cross-section of the limiting block 717 is rectangular. A limiting tube 702 is fixedly connected to one side of the connecting tube 701. The limiting tube 702 can limit the placement of the alarm flag 719. The surface of the positioning tube 702 slides through the extrusion rod 710. A fourth spring 714 is fixedly connected to the bottom of the inner wall of the positioning tube 702. The extrusion force generated by the fourth spring 714 can push out the alarm flag 719. A movable frame 715 is fixedly connected to the upper end of the fourth spring 714. The movable frame 715 has an I-shaped cross-section and can provide support and limitation for pushing out. A limiting hole 718 is opened on the upper surface of the movable frame 715 corresponding to the position of the limiting block 717. The limiting hole 718 facilitates the through movement of the limiting block 717. The cross-section of the limiting hole 718 is T-shaped, and the cross-sectional dimensions of the limiting hole 718 are adapted to the cross-sectional dimensions of the extrusion rod 710 and the limiting block 717. The alarm flag 719 is fixedly connected to the upper surface of the movable frame 715.The alarm flag 719 provides a clear alarm display. A pull plate 713 is fixedly connected to the compression rod 710, allowing for easy repositioning of the compression block 709, compression rod 710, and limiting block 717. A pull rod 716 is fixedly connected to the upper side wall of the movable frame 715, enabling it to move up and down. This allows the fourth spring 714 to slide and reset the movable frame 715. A sliding hole 720 is provided in the limiting tube 702 corresponding to the position of the pull rod 716, with the inner wall of the sliding hole 720 slidably connected to the pull rod 716. A guide groove 732 is provided on the upper surface of the movable frame 715 corresponding to the position of the limiting hole 718, allowing for proper positioning of the limiting block 717. Positioning is limited to prevent displacement between the squeezing block 709 and the limiting block 717. The inner wall surface of the guide groove 732 is slidably connected to the surface of the limiting block 717. A support frame 703 is fixedly connected to one side of the limiting tube 702. The support frame 703 can support the position of the mechanical buzzer 721. An electromagnetic coil body 725 is fixedly connected to the inner wall of the support frame 703. The electromagnetic coil body 725, the power supply block 733, and the mechanical buzzer 721 can form a closed circuit through the wire 726 to perform an audible alarm operation. A power supply block 733 is fixedly connected to the inner wall surface of the support frame 703. The power supply block 733 includes a positive terminal and a negative terminal. A first Pin 722, the first pin 722 and the second pin 724 are capable of guiding current transmission. The positive terminal of the power supply block 733 is electrically connected to the first pin 722 via a wire 726. The second pin 724 is fixedly connected to the side wall of the support frame 703 near the first pin 722. The second pin 724 is electrically connected to one end of the electromagnetic coil body 725 via a wire 726. The other end of the electromagnetic coil body 725 is electrically connected to a mechanical buzzer 721 via a wire 726. The negative terminal of the power supply block 733 is electrically connected to the mechanical buzzer 721 via a wire 726. A first connecting piece 723 is rotatably connected to the first pin 722, and a first coil spring 72 is sleeved on the first pin 722. 8. The torsional force generated by the first coil spring 728 can lift and limit the position of the first connecting piece 723. Both ends of the first coil spring 728 are fixedly connected to the first connecting piece 723 and the first pin rod 722, respectively. A second connecting piece 727 is fixedly connected to the second pin rod 724. A lever 730 is fixedly connected to one end of the first connecting piece 723. The lever 730, with the aid of the auxiliary block 731, can drive the first connecting piece 723 to abut against the second connecting piece 727, thereby forming a complete current circuit. A through hole 729 is provided on the limiting tube 702. The inner wall of the through hole 729 slides through the surface of the lever 730. An auxiliary block 731 is fixedly connected to the inner wall of the moving frame 715 near the lever 730.

[0026] During the operation of the hydropower station's water transmission system, excessive pressure may occur in the pipeline. In this case, an alarm mechanism 7 installed on the installation pipe 3 can be used to trigger an alarm. When the pressure is too high, it will move the second piston 704 inside the connecting pipe 701, causing the second piston 704 to move the second push rod 705 and the push block 707 upwards until the push block 707 presses against the compression block 709. At this time, the compression rod 710 at one end of the compression block 709 drives the limiting block 717 to slide along the guide groove 732 on the upper surface of the moving frame 715 inside the limiting pipe 702 until the limiting block 717 slides into the limiting hole 718 and then slides down. At this point, the compression of the limiting pipe 702... The fourth spring 714 will use the squeezing force to push out the alarm flag 719 at the top of the moving frame 715. The removal of the alarm flag 719 allows the operator to observe that during the upward movement of the moving frame 715, the auxiliary block 731 fixed on one side of the moving frame 715 will press against the lever 730 passing through the limit tube 702, thereby causing the lever 730 to drive the first connecting piece 723 to abut against the second connecting piece 727. At this time, the current in the support frame 703 forms a closed current circuit through the electromagnetic coil body 725 and the power block 733, thereby making the mechanical buzzer 721 on the surface of the support frame 703 sound, and then the sound alarm operation is performed.

[0027] Reference Figure 9 and Figure 10As shown, both the mounting pipe 3 and the connecting flange pipe 5 have mounting mechanisms 8 at their closest points. Each mounting mechanism 8 includes a mounting ring 81. The mounting ring 81 and the mating ring 87 allow for the installation of the mounting pipe 3 and the connecting flange pipe 5. The inner wall of the mounting ring 81 is fixedly connected to the mounting pipe 3. Several mounting brackets 82 are provided on the mounting ring 81. These brackets can rotate and limit the position of the mounting rod 83. The inner wall of each mounting bracket 82 is rotatably connected to the mounting rod 83. The mounting rod 83 can easily engage with the mating groove 88 on the surface of the mating ring 87. The connecting flange pipe 5 is fixedly connected to the mating ring 87. The mating ring 87 has a mating groove 88 corresponding to the position of the mounting rod 83. The mating groove 88 can be engaged with the mounting rod 83 to prevent it from falling off. The inner wall of the mating groove 88 is connected to the mounting rod 83. The mounting rod 83 is movably connected to a positioning frame 84, which further secures the mounting rod 83 and prevents it from slipping off. One side of the positioning frame 84 is inserted into the surface of the mating ring 87. A fixing shaft 85 is threaded onto the mounting rod 83, and one side of the fixing shaft 85 abuts against the surface of the positioning frame 84. Both ends of the inner wall of the mounting frame 82 are fitted with second coil springs 89. The torsional force generated by the second coil springs 89 can compress and protect the position of the mounting rod 83 to prevent shaking. The second coil springs 89 are fixedly connected to the mounting rod 83 and the mounting frame 82 respectively. The same inner liner 86 is inserted into the inner wall of the mounting tube 3 and the connecting flange tube 5. The inner liner 86 can effectively increase the sealing performance and prevent liquid leakage. The cross-sectional dimensions of the two ends of the inner liner 86 are adapted to the cross-sectional dimensions of the mounting tube 3 and the connecting flange tube 5.

[0028] During the assembly of the installation pipe 3 and the connecting flange pipe 5, the inner liner 86 is first inserted into the inner wall of the installation pipe 3 and the connecting flange pipe 5. Then, the installation rod 83 on the installation ring 81 at one end of the installation pipe 3 is flipped so that the installation rod 83 is engaged with the mating groove 88 on the mating ring 87 on the surface of the connecting flange pipe 5. Then, the movable positioning frame 84 on the installation rod 83 is pulled so that one end of the positioning frame 84 is inserted into the surface of the mating ring 87. At the same time, the fixed shaft 85 on the installation rod 83 is rotated to fix the position of the entire installation rod 83. At this time, the entire installation tank and the connecting flange pipe 5 are conveniently docked, fixed and limited.

Claims

1. A safety detection device for a hydropower station water conveyance system, characterized in that: The device includes a water supply pipe body (1), a connecting flange pipe (5), and a pressure detection mechanism (6). Both ends of the water supply pipe body (1) are fixedly connected to the connecting flange pipe (5). Both the water supply pipe body (1) and the connecting flange pipe (5) are equipped with clamping arms (4). The two connecting flange pipes (5) are fixedly connected to an installation pipe (3) at one end close to each other. A protective shell (2) is installed on the surface of the installation pipe (3). The pressure detection mechanism (6) is located on the surface of the installation pipe (3) and inside the protective shell (2).

2. The safety detection device for a hydropower station water conveyance system as described in claim 1, characterized in that: The pressure detection mechanism (6) includes a connecting pipe (601), the bottom end of which is fixedly connected to the mounting pipe (3), a first connecting plate (603) is fixedly connected to the inner wall of the connecting pipe (601), a first push rod (605) is slidably passed through the surface of the first connecting plate (603), a first piston (602) is fixedly connected to the bottom end of the first push rod (605), the first piston (602) is slidably connected to the inner wall of the connecting pipe (601), and a first spring (604) is sleeved on the first push rod (605). The two ends of the first spring (604) are fixedly connected to the first connecting plate (603) and the first piston (602) respectively.

3. The safety detection device for a hydropower station water conveyance system as described in claim 2, characterized in that: A rotating rod (612) is rotatably connected inside the connecting pipe (601). A gear (614) is fixedly connected to the rotating rod (612). An eccentric block (615) is fixedly connected to the rotating rod (612). A rack (613) is fixedly connected to the upper surface of the first push rod (605). The tooth surface of the rack (613) meshes with the tooth surface of the gear (614). A display frame (608) is fixedly connected to the upper end of the connecting pipe (601). A rotating shaft (609) is fixedly connected to the surface of the display frame (608). An indicator rod (610) is rotatably connected to the rotating shaft (609). A first scale (611) is provided on the inner wall surface of the display frame (608).

4. The safety detection device for a hydropower station water conveyance system as described in claim 2, characterized in that: The upper ends of the first push rod (605) are fixedly connected to sliders (607) on both sides, and the inner walls of the connecting pipe (601) are provided with grooves (606) on both sides, and the inner walls of the grooves (606) are slidably connected to the surface of the sliders (607). The bottom end of the indicator rod (610) is rotatably connected to a pulley (616), and a limiting groove (617) is opened on the side wall surface of the eccentric block (615). The bottom surface of the inner wall of the limiting groove (617) is slidably connected to the pulley (616).

5. The safety detection device for a hydropower station water conveyance system as described in claim 2, characterized in that: A strain measuring rod (618) is fixedly connected to one side of the mounting tube (3). An auxiliary plate (619) is fixedly connected to the mounting tube (3). An adjusting rod (620) is fixedly connected to the strain measuring rod (618). A connecting rod (621) is rotatably connected to the upper end of the adjusting rod (620). A rotating rod (622) is fixedly connected to the surface of the auxiliary plate (619). The rotating rod (622) is rotatably connected to the connecting rod (621). A moving rod (624) is rotatably connected to one end of the connecting rod (621). A connecting ring (623) is fixedly connected to the surface of the auxiliary plate (619). The inner wall of the connecting ring (623) is slidably connected to the moving rod (624). A second spring (626) is sleeved on the upper part of the moving rod (624). The two ends of the second spring (626) are fixedly connected to the moving rod (624) and the connecting ring (623) respectively. A second scale (625) is provided on the auxiliary plate (619).

6. The safety detection device for a hydropower station water conveyance system as described in claim 1, characterized in that: The mounting tube (3) is provided with an alarm mechanism (7) on the surface inside the protective shell (2); The alarm mechanism (7) includes a connecting pipe (701) and several wires (726). The bottom end of the connecting pipe (701) is fixedly connected to the mounting pipe (3). A second connecting plate (706) is fixedly connected to the inner wall of the connecting pipe (701). A second push rod (705) slides through the surface of the second connecting plate (706). A second piston (704) is fixedly connected to the bottom end of the second push rod (705). The second piston (704) is slidably connected to the inner wall of the connecting pipe (701). A top block (707) is fixedly connected to the upper end of the second push rod (705). A connecting frame (708) is fixedly connected to one side of the connecting tube (701), and a fixing plate (712) is fixedly connected to the inner wall of the connecting frame (708). A pressing rod (710) slides through the inner wall of the fixing plate (712), and a pressing block (709) is fixedly connected to one end of the pressing rod (710) near the top block (707). A third spring (711) is fitted on the extrusion rod (710). The two ends of the third spring (711) are fixedly connected to the fixing plate (712) and the extrusion block (709) respectively. A limit block (717) is fixedly connected to the end of the extrusion rod (710) away from the extrusion block (709). A limiting tube (702) is fixedly connected to one side of the connecting tube (701). The surface of the limiting tube (702) slides through the extrusion rod (710). A fourth spring (714) is fixedly connected to the bottom of the inner wall of the limiting tube (702). A movable frame (715) is fixedly connected to the upper end of the fourth spring (714). A limiting hole (718) is opened on the movable frame (715). An alarm flag (719) is fixedly connected to the upper end of the movable frame (715). A pull plate (713) is fixedly connected to the extrusion rod (710), a pull rod (716) is fixedly connected to the moving frame (715), and a sliding hole (720) is provided on the limiting tube (702). The inner wall of the sliding hole (720) is slidably connected to the pull rod (716).

7. The safety detection device for a hydropower station water conveyance system as described in claim 6, characterized in that: A support frame (703) is fixedly connected to one side of the limiting tube (702). An electromagnetic coil body (725) and a power block (733) are fixedly connected to the inner wall of the support frame (703). The power block (733) includes a positive terminal and a negative terminal. A first pin rod (722) is fixedly connected to one side of the support frame (703). The positive terminal of the power block (733) is electrically connected to the first pin rod (722) via a wire (726). A second pin rod (724) is fixedly connected to one side of the support frame (703). The second pin rod (724) is electrically connected to one end of the electromagnetic coil body (725) via a wire (726). The other end of the electromagnetic coil body (725) is electrically connected to the mechanical buzzer (721) via a wire (726). The negative terminal of the power block (733) is electrically connected to the mechanical buzzer (721) via a wire (726). The first pin rod (722) is rotatably connected to the first connecting piece (723). The first pin rod (722) is fitted with a first coil spring (728). The two ends of the first coil spring (728) are fixedly connected to the first connecting piece (723) and the first pin rod (722) respectively. The second pin rod (724) is fixedly connected to the second connecting piece (727), and one end of the first connecting piece (723) is fixedly connected to the lever (730). The limiting tube (702) has a through hole (729), and the inner wall of the through hole (729) slides through the surface of the lever (730). The moving frame (715) is fixedly connected to the auxiliary block (731).

8. The safety detection device for a hydropower station water conveyance system as described in claim 6, characterized in that: The movable frame (715) is provided with a guide groove (732), and the inner wall surface of the guide groove (732) is slidably connected to the surface of the limiting block (717).

9. A safety detection device for a hydropower station water conveyance system as described in claim 1, characterized in that: The mounting pipe (3) and the connecting flange pipe (5) are each provided with a mounting mechanism (8) at their respective ends. The mounting mechanism (8) includes a mounting ring (81). The inner wall of the mounting ring (81) is fixedly connected to the mounting pipe (3). Several mounting brackets (82) are provided on the mounting ring (81). The inner wall of the mounting bracket (82) is rotatably connected to a mounting rod (83). A docking ring (87) is fixedly connected to the connecting flange pipe (5). A docking groove (88) is provided on the docking ring (87). The inner wall of the docking groove (88) is engaged with the mounting rod (83). A positioning bracket (84) is movably connected to the mounting rod (83). One side of the positioning bracket (84) is inserted into the surface of the docking ring (87). A fixed shaft (85) is threadedly connected to the mounting rod (83). One side of the fixed shaft (85) abuts against the surface of the positioning bracket (84).

10. A safety detection device for a hydropower station water conveyance system as described in claim 1, characterized in that: The inner walls of the mounting bracket (82) are fitted with second coil springs (89) at both ends. The second coil springs (89) are fixedly connected to the mounting rod (83) and the mounting bracket (82) respectively. The mounting tube (3) and the inner wall of the connecting flange tube (5) are connected with the same inner bushing (86).

Images