Segmented sealing connection structure of inclined horizontal pipe for reservoir water delivery

Abstract

The invention relates to the technical field of pipeline sealing connection, in particular to an inclined horizontal pipe segmented sealing connection structure for reservoir water delivery. Comprising two half-and-half sealing pieces, and each half-and-half sealing piece comprises a sealing sleeve, two metal hoops, two series-connection frames and a locking mechanism; the sealing sleeve is used for being arranged between two pipeline connectors in a sleeving mode. The two metal hoops are mounted on the inner side of the sealing sleeve in an embedded manner; a series connection frame is movably connected between the opposite end parts of the two metal hoops; the locking mechanism comprises two locking pieces which are installed on the two series connection frames in a one-to-one correspondence and sliding fit mode, and two tightening assemblies distributed on the two axial sides of the sealing sleeve are hinged to each locking piece. The locking assemblies located on the same side of the sealing sleeve are hinged to the adjacent metal hoops. According to the connecting structure, external sealing can be conducted on the butt joint position of the pipelines laid in the slope section, the effectiveness and durability of sealing can be guaranteed, reliable and stable pulling resistance can be provided, and the safety of pipeline laying is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of pipeline sealing connection technology, and specifically proposes a segmented sealing connection structure for inclined horizontal pipes used in reservoir water transportation. Background Technology

[0002] The inclined water conveyance pipe in the reservoir refers to the pipeline that is laid obliquely on the slope in the entire water conveyance pipeline system. Compared with the pipeline laid on the horizontal section, the slope causes the pipeline to have a downward slipping tendency, which generates additional pull-out force or shear force on the joints. In addition, the impact force generated by the downward flow of water will also generate additional pull-out force on the joints, making the seal between the pipes more prone to failure, which is related to the safety and sustainability of the entire water conveyance system.

[0003] To improve the safety and sealing of pipelines laid on slopes, and to facilitate subsequent pipeline maintenance and repair, current construction methods involve rigidly fixing key nodes while flexibly constraining the general pipeline, and using segmented sealing. Under current technology, external sealing is typically achieved at pipeline connections using split joints or similar structures. The split joint provides clamping force through a metal sleeve, which deforms and squeezes the internal rubber sealing ring to fill the gap between the pipeline and the metal sleeve, thus achieving sealing and preventing pull-out. However, existing split joints or similar structures have the following problems.

[0004] (1) The metal sleeve of the half-joint has a small amount of deformation. When locked, the sealing ring is indirectly forced to achieve a seal by the extrusion force provided by the two half-structured metal sleeves. The overall structure is designed with the metal sleeve on the outside and the sealing layer on the inside. The metal sleeve is basically made of steel and buried in the soil. The metal sleeve is in direct contact with the soil over a large area and is prone to corrosion, which reduces the extrusion constraint force on the sealing ring and gradually weakens the sealing effect.

[0005] (2) The existing rubber ring in the split is not completely filled inside the metal sleeve. There is still a gap between the metal sleeve and the pipe sleeve in the non-filled section, and the effective sealing area is small. Although the pipeline is generally filled with sand, gravel and other materials, the inner sealing ring will be directly or indirectly exposed to the soil. The rubber ring is simultaneously attacked by microorganisms, moisture, chemicals, metal ions and slow thermo-oxidative aging in the soil, which will accelerate the aging of the rubber ring and make it impossible to maintain the sealing effect for a long time.

[0006] (3) The pull-out force of the half joint is generated by the friction between the rubber ring and the pipe through the squeezing contact between the rubber ring and the pipe. When the outer wall of the pipe is relatively smooth, the friction coefficient is small, which makes the actual pull-out force generated small. Therefore, the reliability of the actual pull-out force is not high. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides a segmented sealed connection structure for inclined horizontal pipes used in reservoir water conveyance, which solves the problems mentioned in the background section.

[0008] To achieve the above objectives, the present invention employs the following technical solution: a segmented sealing connection structure for inclined horizontal pipes used in reservoir water conveyance, wherein annular grooves are pre-formed on the outer wall of the pipes near the two pipe openings, and the external seal of the connection structure is installed between the annular grooves of the two pipes; the connection structure includes two half-seals, and locking blocks are detachably installed between the corresponding ends of the two half-seals, and connecting rods for connecting adjacent connection structures are detachably installed on the locking blocks; the half-seals include a sealing sleeve, two metal clamps, two connecting frames, and a locking mechanism; the sealing sleeve is semi-circular and is used to fit between the two pipe interfaces; both metal clamps are embedded... The locking mechanism is installed inside the sealing sleeve and is used to engage with the annular grooves of the two pipes. Both connecting frames are fixed on the sealing sleeve. Connecting frames are movably connected between the opposite ends of the two metal clamps. The locking mechanism includes two locking parts that are slidably fitted on the two connecting frames. Two tightening components are hinged on the two locking parts and distributed on both sides of the sealing sleeve. The locking components on the same side of the sealing sleeve are hinged to the adjacent metal clamps. The locking block is located between the two connecting frames on the two half-seals. When the locking parts are locked on the locking block, the locking parts drive the metal clamps and the sealing sleeve to be clamped on the outer wall of the pipe through the tightening components.

[0009] Preferably, both ends of the metal clamp are provided with extension holes; the connecting frame includes two connecting plates fixed on the sealing sleeve, the two connecting plates are respectively attached to the ends of the two metal clamps, and the connecting plates are fixed with limiting pins passing through the extension holes.

[0010] Preferably, the tightening assembly includes multiple transverse pins distributed circumferentially along the metal clamp, the transverse pins being axially inserted into the metal clamp, each transverse pin having a connecting rod fixed to its shaft end, and the multiple connecting rods being hinged together by an arc-shaped pull rod, one end of which is hinged to the locking member.

[0011] Preferably, the connecting frame further includes a bridging block fixed between the two connecting plates; the locking member includes a screw frame slidably mounted on the bridging block and a screw rotatably mounted on the screw frame; the locking block is located between the two bridging blocks, and the screw is threadedly connected to the locking block; one end of the pull rod is hinged to the screw frame.

[0012] Preferably, the inner side of the sealing sleeve is provided with two coaxially arranged and annular embedding grooves; the radial cross section of the metal clamp is U-shaped, and the two metal clamps are correspondingly embedded in the two embedding grooves.

[0013] Preferably, the metal clamp has multiple segmented slots distributed circumferentially, the segmented slots are axially connected to the metal clamp, and the multiple segmented slots and multiple transverse pins in two tightening components assembled on the same metal clamp are distributed alternately in the circumferential direction, and a retaining strip is provided in the embedding groove and embedded in each segmented slot.

[0014] Preferably, the transverse pin also extends and inserts into the sealing sleeve.

[0015] Preferably, the inner ring surface of the metal clamp is provided with locking teeth, and the locking teeth protrude from the insertion groove.

[0016] The above technical solution has the following advantages or beneficial effects: This invention provides a segmented sealing connection structure for inclined horizontal pipes used in reservoir water conveyance. It is used for external sealing installation between two socket-joint pipe interfaces. The overall structure adopts an external sealing sleeve with an internal metal clamp. The sealing sleeve is a thickened design, which can both provide a complete wrap-around seal at the pipe interface and protect the metal clamp from rust. The metal clamp, as an internal skeleton, ensures the sealing strength of the external seal of the connection structure. The metal clamp is composed of segmented seams, which are flexibly filled by the sealing sleeve, ensuring good radial shrinkage deformation capacity of the metal clamp and compensating for the structural strength of the metal clamp; two Each semi-sealed component is equipped with a locking mechanism that engages with metal clamps. During the locking process, the locking components work together with the locking blocks to lock the ends of the two semi-sealed components. The locking components indirectly drive the metal clamps to be fully and evenly clamped in the annular groove through the tightening components, and simultaneously drive the sealing sleeves to further seal and adhere to the interface of the two socket tubes. On the basis of enhancing the sealing effect, the sealing contact between the sealing sleeves and the socket tubes, as well as the locking of the two sets of metal clamps between the two annular grooves, comprehensively improve the pull-out resistance of the socket tubes and ensure the reliability of pull-out resistance. In addition, the isolation of the effective sealing section between the sealing sleeves by the two sets of metal clamps can maintain the durability of the sealing effect.

[0017] The connection structure provided by this invention can provide external sealing for the pipe joints laid on sloping sections, ensuring the effectiveness and durability of the seal, and providing reliable and stable pull-out resistance, thus guaranteeing the sealing and safety of the pipe connection. At the same time, the connection structure itself is detachable, which also facilitates subsequent pipe maintenance and repair operations. Attached Figure Description

[0018] The invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings, which are not intentionally drawn to scale; the focus is on illustrating the spirit of the invention.

[0019] Figure 1This is a three-dimensional structural diagram of a segmented sealed connection structure for inclined horizontal pipe used in reservoir water conveyance provided by the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the socket tube.

[0021] Figure 3 It is a three-dimensional diagram of the sealed connection structure and the sealing installation of the socket tube.

[0022] Figure 4 It is a three-dimensional sectional view of the two half-seals locked together with the locking block.

[0023] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle.

[0024] Figure 6 yes Figure 4 A magnified view of a section at point B.

[0025] Figure 7 This is a three-dimensional structural diagram of a semi-sealed component.

[0026] Figure 8 This is a three-dimensional structural diagram of the semi-sealed component after the sealing sleeve has been removed.

[0027] Figure 9 This is a three-dimensional structural diagram of the sealing sleeve.

[0028] Figure 10 This is a three-dimensional structural diagram of the sealing sleeve from another perspective.

[0029] Figure 11 It is a three-dimensional assembly diagram of two metal clamps and a connecting frame.

[0030] Figure 12 It is a three-dimensional structural diagram of the locking component and the two tightening components assembled together.

[0031] In the diagram: 1. Sealing sleeve; 11. Embedded groove; 12. Sealing strip; 13. Pin hole; 2. Metal clamp; 21. Locking tooth; 22. Segmented joint; 23. Pin hole; 24. Extension hole; 3. Connecting frame; 31. Connecting plate; 32. Bridging block; 33. Limiting pin; 34. Guide pin; 4. Locking mechanism; 41. Locking element; 411. Screw frame; 412. Screw; 42. Tightening assembly; 421. Horizontal pin; 422. Connecting rod; 423. Pull rod; 5. Locking block; 51. Insert pin; 52. Connecting rod; 6. Socket tube; 61. Socket; 62. Insert; 63. Annular groove. Detailed Implementation

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] like Figure 2 and Figure 3 As shown, a segmented sealing connection structure for inclined pipes used in reservoir water conveyance is described. It should be noted that the inclined pipes laid on sloping terrain are specifically socket pipes 6. During construction, the socket pipes 6 can be continuously laid end-to-end, and a rubber ring is generally built into the socket 61 and spigot 62 of the two interlocking socket pipes 6 to reinforce the seal. Therefore, together with the connection structure provided by this invention for external sealing at the joint of the socket pipes 6, a double-seal structure is formed, greatly enhancing the sealing performance between the pipes. Furthermore, in this invention, the socket pipes 6 are precast concrete pipes. To facilitate the assembly connection structure, the outer wall of the socket pipes 6 has pre-formed annular grooves 63 near the socket 61 and spigot 62. The radius of the annular groove 63 near the socket 61 is larger than the radius of the annular groove 63 near the spigot 62. The connection structure is externally sealed between the annular grooves 63 of the two socket pipes 6.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 9 and Figure 10 As shown, the connection structure includes two semi-circular sealing elements, both of which are semi-circular rings. When the ends of the two semi-circular sealing elements are joined together, they can form a complete outer sealing element similar to a sealing ring. Each semi-circular sealing element includes a sealing sleeve 1 made of rubber. The sealing sleeve 1 is used to fit between the interfaces of the two socket tubes 6. The socket tubes 6 are connected by inserting a spigot 62 and a socket 61. The radius of the socket 61 is larger than the radius of the spigot 62, so there is a step at the interface. The inner side of the sealing sleeve 1 is provided with a corresponding step profile, and the inner profile of the sealing sleeve 1 is adapted to the outer wall of the socket 61, the outer wall of the spigot 62, and the end face of the socket 61.

[0036] like Figure 4 , Figure 5 , Figure 7 , Figure 9 , Figure 10 and Figure 11As shown, the inner side of the sealing sleeve 1 is provided with two coaxial and annular insertion grooves 11; metal clamps 2 are embedded in both insertion grooves 11. The metal clamps 2 are made of elastic metal material, for example, in this embodiment, the metal clamps 2 are made of alloy spring steel. The radii of the two metal clamps 2 match the radii of the two annular grooves 63 on the socket tube 6. Furthermore, when the metal clamps 2 are not subjected to external force, their radii are slightly larger than the radii of the corresponding annular grooves 63, that is, the metal clamps 2 have reserved space to clamp the annular grooves 63 by radial contraction deformation; the radial cross section of the metal clamps 2 is U-shaped, so that the sealing sleeve 1 covers and fits tightly against the two end faces of the metal clamps 2. When the sealing sleeve 1 is fitted between the two socket tubes 6, the sealing sleeve 1 is positioned between the two metal clamps 2. The covering layer at the side end face, together with the metal clamp 2, can be simultaneously embedded and engaged in the annular groove 63. It should be noted that the overall width formed by the covering layers on both sides and the metal clamp 2 is greater than the width of the annular groove 63, so that the U-shaped metal clamp 2 can act as an internal skeleton and compress the covering layer, thereby being able to be clamped in the annular groove 63. The inner annular surface of the metal clamp 2 is provided with locking teeth 21, and the locking teeth 21 protrude from the embedded groove 11. The metal clamp 2 can be clamped in the annular groove 63 through the locking teeth 21 to improve the clamping force. Furthermore, to facilitate radial contraction deformation of the metal clamp 2, multiple segmented slots 22 are evenly distributed along the circumference of the metal clamp 2. These segmented slots 22 extend axially through the metal clamp 2, dividing it into multiple independent flexible units. The segmented slots 22 function similarly to hinge points; when the metal clamp 2 is subjected to external force, it can transform from integral compression deformation to segmented bending deformation, facilitating the overall tight clamping of the metal clamp 2 within the annular groove 63. It should be noted that the metal clamp... 2. Setting segmented seams 22 will reduce the overall strength and cause stress concentration at the segmented seams 22. In order to reduce the adverse effects of segmented seams 22, each groove 11 is provided with a seam retainer strip 12 that can be embedded and snapped into each segmented seam 22. The seam retainer strip 12 is snapped into the segmented seam 22 in a squeezed and compressed state. The seam retainer strip 12 is equivalent to flexibly filling the segmented seam 22, enhancing the support of the metal clamp 2, and can buffer and transfer stress, reducing stress concentration at the segmented seam 22.

[0037] like Figure 6 , Figure 7 , Figure 8 and Figure 11As shown, a connecting frame 3 is movably connected between the opposite ends of the two metal clamps 2; an extension hole 24 is provided at both ends of the metal clamps 2; the connecting frame 3 includes two connecting plates 31 fixed to the sealing sleeve 1 by screws and a bridging block 32 welded between the two connecting plates 31. The two connecting plates 31 have different lengths. The longer connecting plate 31 is attached to the end of the metal clamp 2 with a smaller radius, while the shorter connecting plate 31 is attached to the end of the metal clamp 2 with a larger radius. A limiting pin 33 is welded on the connecting plate 31. The limiting pin 33 has a stepped round rod structure. The limiting pin 33 passes through the extension hole 24 and clamps the end of the metal clamp 2 between its stepped end and the connecting plate 31. The end of the metal clamp 2 and the connecting plate 31 are kept in a non-rigid connection, which facilitates the radial shrinkage deformation of the metal clamp 2.

[0038] like Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 10 and Figure 12 As shown, both connecting frames 3 are equipped with locking mechanisms 4. Each locking mechanism 4 includes two locking members 41, each corresponding to one of the two connecting frames 3. Each locking member 41 has two tightening components 42 hinged to it, distributed on both axial sides of the sealing sleeve 1. Locking components on the same side of the sealing sleeve 1 are hinged to adjacent metal clamps 2. Two guide pins 34 are welded to the outer wall of the bridging block 32, perpendicularly arranged to the central axis of the sealing sleeve 1. Each locking member 41 includes a screw frame 411 slidably mounted on the two guide pins 34. A screw 412 is rotatably mounted on the screw frame 411, and the screw 412 is arranged parallel to the guide pins 34. Multiple pin holes 23 are vertically through-holes on opposite end faces of the metal clamps 2, and these pin holes 23 and multiple segmented seams 22 are evenly distributed circumferentially. Both end faces of the sealing sleeve 1 are... Multiple pin holes 13 are provided, coaxially arranged in one-to-one correspondence with multiple pin holes 23 on the same side of the metal clamp 2; the multiple pin holes 23 on the metal clamp 2 are divided into two groups, and the two groups of pin holes 23 are correspondingly arranged with two tightening components 42 on the adjacent side. The tightening component 42 includes multiple transverse pins 421 distributed along the circumference of the metal clamp 2. The transverse pins 421 are inserted into the pin holes 23 and the corresponding pin holes 13, so that the metal clamp 2 is fixed on the sealing sleeve 1; the shaft ends of the multiple transverse pins 421 are all welded with connecting rods 422, and the multiple connecting rods 422 are all hinged together with an arc-shaped pull rod 423. One end of the pull rod 423 is hinged to the screw frame 411. It should be noted that the pull rod 423 can be made of high-strength spring steel material, allowing a certain amount of elastic deformation.

[0039] like Figure 1 and Figure 6As shown, in order to cooperate with the locking and docking, locking blocks 5 can be detachably installed between the corresponding ends of the two half seals to achieve end docking; the bridging block 32 has a half box structure; the locking block 5 is placed in the two bridging blocks 32 in opposite positions in the two half seals, the locking block 5 is provided with screw holes that cooperate with the screw 412 for locking, and two sets of plug pins 51 are welded on the locking block 5. The two sets of plug pins 51 are distributed on both sides of the screw holes of the locking block 5, and a connecting rod 52 can be installed at both sets of plug pins 51.

[0040] During the laying of the socket pipe 6, the socket pipe 6 is simultaneously sealed externally through the connecting structure. Specifically, after the two socket pipes 6 are connected, the two half-seals are fitted between the two socket pipes 6, so that the two metal clamps 2 of the half-seals are correspondingly engaged in the two annular grooves 63. Then, locking blocks 5 are placed between the two opposite connecting frames 3 of the two half-seals. For ease of operation, the two locking blocks 5 can be pre-locked in sequence, and finally locked as a whole. The sealing installation of the connecting structure can be operated by two people, each of whom can be responsible for the installation of one side of the half-seals.

[0041] When locking the locking member 41 onto the locking block 5, screw 412 is aligned with the screw hole of the locking block 5 and screwed in. As it is screwed in, screw 412 drives screw bracket 411 to slide closer to the locking block 5. On one hand, the two half-seal members move closer to each other with the locking block 5 as the reference, so that the metal clamp 2 is clamped into the annular groove 63 as a whole. On the other hand, screw bracket 411 will indirectly pull the pull rods 423 on both sides. The pull rods 423 cause multiple connecting rods 422 to deflect at an angle because the transverse pins 421 are equidistantly distributed on the... Between two adjacent segmented seams 22, each connecting rod 422 pushes the corresponding metal clamp 2, separated by the segmented seams 22, to gradually clamp into the annular groove 63 via the transverse pin 421. The metal clamp 2 undergoes radial contraction deformation, causing the metal clamp 2 to gradually adhere to the annular groove 63, ensuring the integrity and uniformity of the contact between the metal clamp 2 and the annular groove 63. At the same time, since the transverse pin 421 is inserted into the pin hole 13, and multiple transverse pins 421 are evenly distributed upward around the sealing sleeve 1, Therefore, the sealing sleeve 1 will be pulled closer to the interface of the two socket tubes 6, enhancing the external sealing effect. When the screw rod 411 slides to contact the bridging block 32, the movement of the pull rod 423 relative to the bridging block 32 stops. As tightening continues, the screw rod 411 will push the bridging plate to move, finally locking the bridging block 32 between the screw rod 411 and the locking block 5, thus completing the final locking between the locking element 41 and the locking block 5. After locking, the ends of the two sealing sleeves 1 are pressed together. While the two halves of the sealing element are locked together with the locking block 5, the tightening component 42 completes the clamping of the two sets of metal clamps 2 at the annular groove 63, thereby ensuring the reliability of the metal clamps 2 clamping at the annular groove 63. The tight seal between the sealing sleeve 1 and the socket tube 6 enhances the pull-out resistance between the two socket tubes 6. The corresponding clamping between the two sets of metal clamps 2 and the two annular grooves 63 is equivalent to axially locking the two socket tubes 6, which greatly improves the pull-out resistance between the socket tubes 6.

[0042] After the two half-seals and the two locking blocks 5 are locked together, in order to further improve the axial tension, a connecting rod 52 can be connected between the two adjacent connecting structures. The locking block 5 can be inserted into the end of the connecting rod 52 through the plug pin 51 and locked with a nut, thereby realizing the enhanced connection between the adjacent connecting structures.

[0043] This invention provides a segmented sealing connection structure for inclined horizontal pipes used in reservoir water conveyance. It is used for external sealing installation between the interfaces of two socket-joint pipes 6. The overall structure adopts an external sealing sleeve 1 with an internal metal clamp 2. The sealing sleeve 1 is a single-section thickened design, which can both provide a full-section wrap-around seal at the pipe interface and protect the metal clamp 2 from rust. The metal clamp 2, as an internal skeleton, ensures the sealing strength of the external seal of the connection structure. The metal clamp 2 is segmented by segmented seams 22, which are flexibly filled by the sealing sleeve 1, ensuring good radial shrinkage deformation capacity of the metal clamp 2 and compensating for the structural strength of the metal clamp 2. Both half-seals are equipped with metal... The locking mechanism 4, connected to the clamp 2, locks the two halves of the sealing element 41 with the locking block 5 to complete the locking and docking of the two halves of the sealing element. During this process, the locking element 41 indirectly drives the metal clamp 2 to be fully and evenly clamped in the annular groove 63 through the tightening component 42, and simultaneously drives the sealing sleeve 1 to further seal and adhere to the interface of the two socket pipes 6. On the basis of strengthening the sealing effect, the sealing contact between the sealing sleeve 1 and the socket pipe 6, and the locking of the two sets of metal clamps 2 between the two annular grooves 63, comprehensively improve the pull-out resistance of the socket pipe 6 docking, ensuring the reliability of pull-out resistance. In addition, the isolation of the effective sealing section between the two sets of metal clamps 2 and the sealing sleeve 1 can maintain the durability of the sealing effect. In summary, the connection structure provided by the present invention can provide external sealing for the docking of pipelines laid on sloping sections, ensuring the effectiveness and durability of the seal, providing reliable and stable pull-out resistance, ensuring the sealing and safety of the pipeline connection, and the connection structure itself is detachable, which also facilitates subsequent pipeline maintenance and repair operations.

[0044] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a manner common to the art; any possible variations and modifications made by those skilled in the art without departing from the technical solution of the present invention, or equivalent embodiments with equivalent changes, do not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A segmented sealing connection structure for inclined horizontal pipes used in reservoir water conveyance, wherein annular grooves are pre-formed on the outer wall of the pipes near two pipe openings, and the external seal of the connection structure is installed between the annular grooves of the two pipes; characterized in that, The connection structure includes two half-seals, each half-seal having a detachable locking block installed between its respective ends. A connecting rod for linking two adjacent connection structures can also be detachably installed on the locking block. The half-seals include: The sealing sleeve, in the shape of a semi-circular ring, is used to fit between two pipe connections; Two metal clamps are embedded inside the sealing sleeve to be engaged in the annular grooves of the two pipes. Both connecting frames are fixed on the sealing sleeve; and the connecting frames are movably connected between the opposite ends of the two metal clamps. And a locking mechanism, including two locking parts that are slidably mounted on two connecting frames, each locking part having two tightening components that are hinged to both sides of the sealing sleeve axially; the locking components located on the same side of the sealing sleeve are hinged to adjacent metal clamps. The locking block is located between two opposing series frames on two half-seals; when the locking element is locked onto the locking block, the locking element drives the metal clamp and sealing sleeve to adhere to the outer wall of the pipe through the tightening assembly.

2. The inclined horizontal pipe segmented sealing connection structure for reservoir water conveyance according to claim 1, characterized in that: Both ends of the metal clamp are provided with extension holes; the connecting frame includes two connecting plates fixed on the sealing sleeve, the two connecting plates are respectively attached to the ends of the two metal clamps, and the connecting plates are fixed with limiting pins that pass through the extension holes.

3. The inclined horizontal pipe segmented sealing connection structure for reservoir water conveyance according to claim 2, characterized in that: The tightening assembly includes multiple transverse pins distributed circumferentially along the metal clamp. The transverse pins are inserted into the metal clamp axially. Each of the transverse pins has a connecting rod fixed to its shaft end, and the multiple connecting rods are hinged together by an arc-shaped pull rod. One end of the pull rod is hinged to the locking component.

4. The inclined horizontal pipe segmented sealing connection structure for reservoir water conveyance according to claim 3, characterized in that: The connecting frame also includes a bridging block fixed between two connecting plates; the locking element includes a screw frame slidably mounted on the bridging block and a screw rotatably mounted on the screw frame; the locking block is located between the two bridging blocks, and the screw is threadedly connected to the locking block; one end of the pull rod is hinged to the screw frame.

5. The inclined horizontal pipe segmented sealing connection structure for reservoir water conveyance according to claim 3, characterized in that: The inner side of the sealing sleeve is provided with two coaxial and annular embedding grooves; the radial cross section of the metal clamp is U-shaped, and the two metal clamps are correspondingly embedded in the two embedding grooves.

6. The inclined horizontal pipe segmented sealing connection structure for reservoir water conveyance according to claim 5, characterized in that: The metal clamp has multiple segmented slots distributed circumferentially, and the segmented slots are axially connected to each other. The multiple segmented slots and multiple transverse pins in two tightening components assembled on the same metal clamp are distributed alternately in the circumferential direction. The slot is provided with a locking strip embedded in each segmented slot.

7. The inclined horizontal pipe segmented sealing connection structure for reservoir water conveyance according to claim 3, characterized in that: The transverse pin also extends and inserts into the sealing sleeve.

8. A segmented sealing connection structure for inclined horizontal pipes used in reservoir water conveyance according to claim 5, characterized in that: The inner ring surface of the metal clamp is provided with locking teeth, which protrude from the insertion groove.

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