A kind of inclined pipe sectional sealing connection structure for reservoir water delivery

Abstract

The present application relates to the technical field of pipeline sealing connection, and specifically provides a sectional sealing connection structure for inclined pipe of reservoir water delivery; the sectional sealing connection structure comprises two half sealing pieces, the half sealing piece comprises a sealing sleeve, two metal clamps, two stringing racks and a locking mechanism; the sealing sleeve is used for sleeving between two pipeline interfaces; the two metal clamps are embeddedly installed on the inner side of the sealing sleeve; the stringing rack is movably connected between the opposite ends of the two metal clamps; the locking mechanism comprises two locking pieces which are slidably and correspondingly installed on the two stringing racks, two tightening assemblies which are hinged on the two locking pieces and are distributed on the two sides of the sealing sleeve in the axial direction; the locking assemblies on the same side of the sealing sleeve are hinged on the adjacent metal clamps; the connection structure can seal the butt joint of the pipeline laid on the slope section, can guarantee the effectiveness and durability of the sealing, and can provide reliable and stable pullout resistance to guarantee the safety of pipeline laying.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline sealing connection, and particularly discloses a sectional sealing connection structure for an inclined pipe for water delivery in a reservoir. BACKGROUND

[0002] The inclined pipe for water delivery in a reservoir refers to a pipeline laid on a slope section in the entire water delivery pipeline system. Compared with a pipeline laid on a horizontal section, the slope causes a downward sliding trend of the pipeline, which generates additional pulling force or shearing force on the joint. In addition, the impact force generated by the downward flow of water also generates additional pulling force on the joint, which makes the sealing failure between the pipelines more likely to occur, relating to the safety and sustainability of the entire water delivery system.

[0003] In order to improve the safety and sealing performance of the pipeline laid on the slope section, and to facilitate subsequent pipeline maintenance and repair, the pipeline is generally laid in a manner that the key nodes are rigidly fixed and the general pipeline is flexibly constrained during construction, and the pipeline is sealed in a sectional sealing manner. In the prior art, the connection between the pipelines is generally externally sealed by a half joint or the like. The half joint provides clamping force by locking the metal sleeve, so as to extrude and deform the internal rubber sealing ring to fill the gap between the pipeline and the metal sleeve, thereby achieving sealing and anti-pulling. However, the existing half joint or the like has the following problems.

[0004] (1) The metal sleeve of the half joint has a small deformability. When locked, the sealing ring is indirectly forced to seal only 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 is buried in the soil layer. The metal sleeve is in direct contact with the soil layer in a large area, which is prone to rust, reducing the extrusion constraint force on the sealing ring and gradually weakening the sealing effect.

[0005] (2) The existing rubber ring in the half joint is not filled in the entire inside of the metal sleeve. That is, there is still a gap between the metal sleeve and the pipe sleeve in the non-filled section. The effective sealing area is small. Although the pipeline is generally flexibly filled with gravel and stones, the inner sealing ring is directly or indirectly exposed to the soil layer. The rubber ring is subjected to a combined attack of microorganisms, moisture, chemicals, metal ions and slow thermal oxidation in the soil layer, which accelerates the aging of the rubber ring and causes the sealing effect to be unable to be maintained for a long time.

[0006] (3) The half joint generates anti-pulling force by the friction force between the rubber ring and the pipeline through extrusion contact between them. When the outer wall of the pipeline is relatively smooth, the friction coefficient is small, so that the actual generated anti-pulling force is small. Therefore, the reliability of the actual obtained anti-pulling force is not high. SUMMARY

[0007] In order to solve the above problems, the application provides a kind of inclined pipe segmented sealing connection structure for reservoir water delivery, to solve the problems mentioned in the above background art.

[0008] In order to achieve the above purpose, the application adopts the following technical solutions: a kind of inclined pipe segmented sealing connection structure for reservoir water delivery, the outer wall of pipeline is preformed with annular groove near two pipe openings, and the connection structure is sealedly installed between the annular grooves of two pipelines;The connection structure includes two half-sealing elements, and lock blocks are detachably installed between the corresponding ends of the two half-sealing elements;Lock block is located between the two bridge blocks, and the screw is threadedly connected on the lock block;One end of the pull rod is hinged to the screw holder.

[0009] Preferably, the metal clamps are provided with elongated holes at both ends;The connecting plate is fixed with a limiting pin passing through the elongated hole.

[0010] Preferably, the tightening assembly includes a plurality of transverse pins distributed circumferentially along the metal clamp, the transverse pins are axially inserted into the metal clamp, the shaft ends of the plurality of transverse pins are fixed with connecting rods, and the plurality of connecting rods are hingedly connected with an arc-shaped pull rod, one end of the pull rod is hingedly connected to the locking element.

[0011] Preferably, the connecting plate is fixed with a limiting pin passing through the elongated hole.

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

[0013] Preferably, the metal clamp is provided with a plurality of segmental slots in the circumferential direction, the segmental slots are through in the axial direction of the metal clamp, the plurality of segmental slots are distributed in the circumferential direction and are arranged between the plurality of cross pins of the two tightening assemblies assembled on the same metal clamp, and the embedding groove is provided with a clamping slot strip embedded in each segmental slot.

[0014] Preferably, the cross pin further extends and is inserted into the sealing sleeve.

[0015] Preferably, the inner annular surface of the metal clamp is provided with clamping teeth, and the clamping teeth are exposed from the embedding groove.

[0016] The technical scheme has the following advantages or beneficial effects: the present application provides a segmental sealing connection structure of an inclined pipe for water delivery of a reservoir, which is used between two socket pipe interfaces of two socket butt joints for external sealing, and has a structure design of an external sealing sleeve and an internal metal clamp, the sealing sleeve is designed to be thickened in an integral section, can be wrapped and sealed in an integral section at the pipe interface, and can also protect the metal clamp from rust, the metal clamp serves as an internal skeleton, ensures the sealing strength of the external sealing of the connection structure, the metal clamp has a segmented structure formed by segmental slots, and the segmental slots are filled with the sealing sleeve, which ensures the radial shrinkage deformation capacity of the metal clamp and makes up for the structural strength of the metal clamp, the two half-sealing pieces are provided with locking mechanisms matched with the metal clamp, the locking mechanisms are matched with the locking blocks to complete the locking butt joint of the end portions of the two half-sealing pieces, the locking mechanisms indirectly drive the metal clamp to be clamped in the annular groove in a full and uniform manner through the tightening assembly, and the sealing sleeve is further sealed and tightly attached to the interface of the two socket pipes, on the basis of the enhanced sealing effect, the sealing contact of the sealing sleeve and the socket pipe and the clamping and locking of the two metal clamps between the two annular grooves comprehensively improve the pullout resistance of the socket pipe butt joint, ensure the reliability of the pullout resistance, and in addition, the two metal clamps isolate the effective sealing sections of the sealing sleeve, which can maintain the durability of the sealing effect.

[0017] The connection structure provided by the present application can be used for external sealing of the pipe butt joint laid on a slope section, can ensure the effectiveness and durability of the sealing, can provide reliable and stable pullout resistance, can ensure the sealing and safety of the pipe connection, and meanwhile, the connection structure itself can be disassembled, which is convenient for subsequent maintenance and repair operations of the pipe. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application and its features, shapes and advantages will become more apparent upon reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. The same reference signs in all the drawings indicate the same parts, and the drawings are not necessarily drawn to scale, and the emphasis is on showing the main idea of the present application.

[0019] Figure 1It is a three-dimensional structure diagram of a sealing connection structure of a reclining pipe section for water reservoir water delivery provided by the application.

[0020] Figure 2 It is a three-dimensional structure diagram of a socket pipe.

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

[0022] Figure 4 It is a three-dimensional sectional view of the two half-sealing pieces and the lock block in the locked and matched state.

[0023] Figure 5 It is Figure 4 the local enlarged view at A in the figure.

[0024] Figure 6 It is Figure 4 the local enlarged view at B in the figure.

[0025] Figure 7 It is a three-dimensional structure diagram of a half-sealing piece.

[0026] Figure 8 It is a three-dimensional structure diagram of the half-sealing piece after the sealing sleeve is disassembled.

[0027] Figure 9 It is a three-dimensional structure diagram of a sealing sleeve.

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

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

[0030] Figure 12 It is a three-dimensional structure diagram of a locking piece and two tightening assemblies.

[0031] In the figure: 1, sealing sleeve; 11, embedded groove; 12, clamping seam; 13, bolt hole; 2, metal clamp; 21, clamping tooth; 22, sectional seam; 23, pin hole; 24, extension hole; 3, stringing rack; 31, connecting plate; 32, bridging block; 33, limiting pin; 34, guide pin; 4, locking mechanism; 41, locking piece; 411, screw rod holder; 412, screw rod; 42, tightening assembly; 421, horizontal bolt; 422, connecting rod; 423, pull rod; 5, lock block; 51, plug-in pin; 52, stringing rod; 6, socket pipe; 61, socket; 62, spigot; 63, annular groove. DETAILED DESCRIPTION

[0032] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of the present application.

[0033] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0034] As shown in Figure 2 and Figure 3 , a connection structure for sealing and connecting segments of a reclining pipe for water delivery in a reservoir, it should be noted that the reclining pipe, which is laid on a slope section, is a socket pipe 6. During construction, the socket pipe 6 can be laid in continuous socket and butt joint, and a rubber ring is generally built-in between the socket 61 and the spigot 62 of the two socket pipes 6 that butt joint with each other to strengthen the sealing, thus forming an inner and outer double sealing structure with the connection structure provided by the present application for external sealing at the joint of the socket pipe 6, greatly strengthening the sealing between the pipes. In addition, in the present application, the socket pipe 6 is a prefabricated concrete pipe, and in order to cooperate with the assembly of the connection structure, an annular groove 63 is pre-formed on the outer wall of the socket pipe 6 near the socket 61 and the spigot 62. The radius of the annular groove 63 near the socket 61 is greater than the radius of the annular groove 63 near the spigot 62, and the connection structure is externally sealed and installed between the two annular grooves 63 of the socket pipes 6.

[0035] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 9 and Figure 10 , the connection structure includes two half sealing members, both of which are in the form of a half circular ring structure. When the end portions of the two half sealing members are butt jointed, a complete external sealing member similar to a sealing ring can be formed. The half sealing member includes a sealing sleeve 1 in the form of a half circular ring and made of rubber, which is used to be sleeved between the interfaces of the two socket pipes 6. The socket pipe 6 is connected by spigot 62 and socket 61 in a plug-in cooperation, and the radius of the socket 61 is greater than the radius of the spigot 62, so there is a step at the interface position. The inner side of the sealing sleeve 1 is provided with a corresponding step profile, and the inner side 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] As shown in Figure 4 , Figure 5 , Figure 7 , Figure 9 , Figure 10 and Figure 11 , the connection structure includes two half sealing members, both of which are in the form of a half circular ring structure. When the end portions of the two half sealing members are butt jointed, a complete external sealing member similar to a sealing ring can be formed. The half sealing member includes a sealing sleeve 1 in the form of a half circular ring and made of rubber, which is used to be sleeved between the interfaces of the two socket pipes 6. The socket pipe 6 is connected by spigot 62 and socket 61 in a plug-in cooperation, and the radius of the socket 61 is greater than the radius of the spigot 62, so there is a step at the interface position. The inner side of the sealing sleeve 1 is provided with a corresponding step profile, and the inner side 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.As shown, the inner side of the sealing sleeve 1 is provided with two ring-shaped embedding grooves 11 coaxially arranged with the sealing sleeve 1; the two embedding grooves 11 are both embeddedly installed with metal clamps 2, the metal clamps 2 are made of elastic metal material, for example, in the embodiment, the metal clamps 2 are made of alloy spring steel. The radius of the two metal clamps 2 matches the radius of the two ring grooves 63 on the socket pipe 6, further, the radius of the metal clamp 2 is slightly larger than the radius of the corresponding ring groove 63 under the action of external force, that is, the metal clamp 2 reserves a size space for clamping the ring groove 63 by radial contraction deformation; the radial cross section of the metal clamp 2 is U-shaped, so that the sealing sleeve 1 is tightly wrapped on the two side end faces of the metal clamp 2, when the sealing sleeve 1 is sleeved between the structures of the two socket pipes 6, the wrapping layer of the sealing sleeve 1 at the two side end faces of the metal clamp 2 can be embedded and clamped in the ring groove 63 together with the metal clamp 2, it should be noted that the overall width of the two side wrapping layers and the metal clamp 2 is greater than the width of the ring groove 63, so that the U-shaped metal clamp 2 can be used as an embedded skeleton and extrude the wrapping layer, thereby being clamped in the ring groove 63; the inner ring surface of the metal clamp 2 is distributed with clamping teeth 21, and the clamping teeth 21 are exposed from the embedding groove 11, the metal clamp 2 can be clamped in the ring groove 63 by the clamping teeth 21 to improve the clamping force. In addition, in order to facilitate the radial contraction deformation of the metal clamp 2, the metal clamp 2 is uniformly distributed with a plurality of segmented seams 22, the segmented seams 22 are through in the axial direction of the metal clamp 2, the plurality of segmented seams 22 divide the metal clamp 2 into a plurality of independent flexible units, the segmented seams 22 play a role similar to that of a hinge point, when the metal clamp 2 is subjected to external force, it can be converted from overall compression deformation to segmented bending deformation, which is beneficial to the overall clamping of the metal clamp 2 in the ring groove 63, it should be noted that the segmented seams 22 of the metal clamp 2 will cause the overall strength to be reduced, and stress concentration is easy to occur at the segmented seams 22, in order to weaken the adverse effects caused by the segmented seams 22, the embedding groove 11 is provided with a clamping seam strip 12 which can be embeddedly clamped in each segmented seam 22, the clamping seam strip 12 is extruded and compressed when clamped in the segmented seam 22, the clamping seam strip 12 is equivalent to flexibly filling the segmented seam 22, which enhances the support of the metal clamp 2 and can buffer and transmit stress, thereby reducing stress concentration at the segmented seam 22.

[0037] As Figure 6 , Figure 7 , Figure 8 and Figure 11As shown in the drawings, the two metal clamps 2 are movably connected with the string connecting racks 3 between the opposite ends of the two metal clamps 2; the two metal clamps 2 are provided with the extension holes 24 at the two ends; the string connecting rack 3 comprises two connecting plates 31 fixed on the sealing sleeve 1 by screws and the bridging block 32 welded between the two connecting plates 31, the two connecting plates 31 are different in length, the longer connecting plate 31 is attached to the end of the metal clamp 2 with smaller radius, and the shorter connecting plate 31 is attached to the end of the metal clamp 2 with larger radius, the connecting plate 31 is welded with the limiting pin 33, the limiting pin 33 is in the stepped round rod structure, the limiting pin 33 passes through the extension hole 24, and the limiting pin 33 clamps the end of the metal clamp 2 between the stepped end and the connecting plate 31, the end of the metal clamp 2 and the connecting plate 31 are in non-rigid connection, so that the metal clamp 2 can be radially deformed.

[0038] As shown in the drawings, Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 10 and Figure 12 , the two string connecting racks 3 are assembled with the locking mechanisms 4, the locking mechanism 4 comprises two locking members 41 installed on the two string connecting racks 3 one by one, the two locking members 41 are hingedly connected with the two tightening assemblies 42 distributed on the two sides of the sealing sleeve 1 in the axial direction; the locking assemblies on the same side of the sealing sleeve 1 are hingedly connected on the adjacent metal clamps 2; the outer side wall of the bridging block 32 is welded with the two guide pins 34 vertically arranged relative to the center axis of the sealing sleeve 1, the locking member 41 comprises the screw rod frame 411 slidably installed on the two guide pins 34, the screw rod frame 411 is rotatably installed with the screw rod 412, and the screw rod 412 is arranged in parallel with the guide pin 34; the metal clamp 2 is vertically and throughly provided with the multiple pin holes 23 on the opposite end faces, and the multiple pin holes 23 are uniformly distributed in the circumferential direction relative to the multiple segmented slits 22, the two side end faces of the sealing sleeve 1 are provided with the multiple insertion pin holes 13 coaxially arranged with the multiple pin holes 23 on the same side of the metal clamp 2 one by one; the multiple pin holes 23 on the metal clamp 2 are equally divided into two groups, and the two groups of pin holes 23 are correspondingly arranged with the two tightening assemblies 42 on the adjacent side, the tightening assembly 42 comprises the multiple transverse insertion pins 421 distributed in the circumferential direction of the metal clamp 2, the transverse insertion pin 421 is inserted into the pin hole 23 and the corresponding insertion pin hole 13, the transverse insertion pin 421 is inserted into the insertion pin hole 13, so that the metal clamp 2 is fixed on the sealing sleeve 1; the shaft end of the multiple transverse insertion pins 421 is welded with the connecting rod 422, and the multiple connecting rods 422 are commonly hingedly connected with the arc-shaped pull rod 423, one end of the pull rod 423 is hingedly connected on the screw rod frame 411, and it should be noted that the pull rod 423 can be made of high elastic spring steel material, and a certain elastic deformation is allowed.

[0039] As shown in the drawings, Figure 1 and Figure 6As shown, in order to match the locking butt joint, the corresponding end portions of the two half-seal assemblies are detachably installed with a locking block 5 for realizing end portion butt joint; the bridging block 32 is in a half-box structure; the locking block 5 is placed in the two bridging blocks 32 in the opposite positions of the two half-seal assemblies, the locking block 5 is provided with a screw hole for cooperating with the screw rod 412 for locking, two groups of plug-in pins 51 are welded on the locking block 5, and the two groups of plug-in pins 51 are distributed on both sides of the screw hole of the locking block 5, and the two groups of plug-in pins 51 are provided with a string connecting rod 52.

[0040] In the process of laying the socket pipes 6, the connection structure is synchronously sealed outside, specifically, when the two socket pipes 6 are completed butt joint, the two half-seal assemblies are sleeved between the two socket pipes 6, so that the two metal clamps 2 of the half-seal assemblies are correspondingly clamped in the two annular grooves 63, then the locking block 5 is placed between the two string connecting frames 3 in the two half-seal assemblies, in order to facilitate operation, the two locking blocks 5 can be sequentially pre-locked, and finally the whole is locked; for the sealing installation of the connection structure, two people can cooperate to operate, and each person can be responsible for the installation of one side of the half-seal assembly.

[0041] When the locking piece 41 is locked on the lock block 5, the screw rod 412 is screwed into the threaded hole of the lock block 5, and as it is screwed in, the screw rod holder 411 slides towards the lock block 5, on the one hand, the two half-seals approach each other with the lock block 5 as the reference, so that the metal clamps 2 are clamped into the annular groove 63 as a whole, on the other hand, the screw rod holder 411 indirectly pulls the pull rods 423 on both sides, and the pull rods 423 make the multiple connecting rods 422 angularly deflect, because the cross pins 421 are equidistantly distributed between the adjacent two segmented slits 22, each connecting rod 422 pushes the corresponding independent unit of the metal clamp 2 separated by the segmented slit 22 into the annular groove 63 step by step through the cross pin 421, and the metal clamp 2 is equivalent to radial shrinkage deformation, so that the metal clamp 2 is clamped in the annular groove 63 in sections, ensuring the integrity and uniformity of the contact between the metal clamp 2 and the annular groove 63, at the same time, because the cross pins 421 are inserted into the pin holes 13, and multiple cross pins 421 are also uniformly distributed circumferentially around the sealing sleeve 1, the sealing sleeve 1 is also pulled to further tightly seal the interface position of the two socket pipes 6, enhancing the external sealing effect; when the screw rod holder 411 slides to contact the bridge block 32, the movement of the pull rod 423 relative to the bridge block 32 stops, and as the screw rod holder 411 continues to tighten, it pushes the bridge plate to move, and finally locks the bridge block 32 between the screw rod holder 411 and the lock block 5, thereby completing the final locking between the locking piece 41 and the lock block 5, after locking, the ends of the two sealing sleeves 1 are abutted and pressed, and the ends of the two half-seals are locked with the lock block 5, at the same time, the two groups of metal clamps 2 are clamped around the annular groove 63 by the tightening assembly 42, thereby ensuring the reliability of the metal clamps 2 clamped around the annular groove 63, and the sealing sleeve 1 is tightly sealed with the socket pipe 6, which enhances the pullout resistance between the two socket pipes 6, and the corresponding clamping between the two groups of metal clamps 2 and the two annular grooves 63, which is equivalent to axially locking the two socket pipes 6, greatly improving the pullout resistance of the abutted socket pipes 6.

[0042] After completing the locking of the two half-seals with the two lock blocks 5, in order to further improve the axial tension, the connecting rods 52 can be connected between adjacent connecting structures, the lock block 5 is inserted into the end of the connecting rod 52 through the insertion pin 51, and is locked by a nut, thereby realizing the reinforced connection between adjacent connecting structures.

[0043] The application provides a kind of for reservoir water delivery inclined pipe sectional sealing connection structure, for two socket pipe 6 interfaces between the external sealing installation socket butt joint, overall use the structure design of external sealing sleeve 1 with built-in metal clamp 2, sealing sleeve 1 is thickened design as a whole, both can be wrapped to pipe interface It is sealed, metal clamp 2 can also be rusted to protect metal clamp 2 as built-in framework, ensure the sealing strength of external sealing of connection structure, metal clamp 2 is segmented by segmented seam 22 Structure, and segmented seam 22 is filled with flexible sealing sleeve 1, ensure that metal clamp 2 has better radial shrinkage deformation ability, also make up the structural strength of metal clamp 2;Two half sealing pieces are equipped with locking mechanism 4 connected with metal clamp 2, through the cooperation of locking piece 41 and lock block 5 Locking to complete the process of locking butt joint of two half sealing pieces end, locking piece 41 indirectly drives metal clamp 2 to be clamped in annular groove 63 by tightening assembly 42, and synchronously drives sealing sleeve 1 to be further sealed and tightly attached to the interface of two socket pipes 6, on the basis of strengthening sealing effect, through the sealing contact of sealing sleeve 1 and socket pipe 6, and the clamping locking of two groups of metal clamps 2 between two annular grooves 63, the pullout resistance of socket pipe 6 butt joint is improved, the reliability of anti-pulling is guaranteed, in addition, two groups of metal clamps 2 isolate the effective sealing section between sealing sleeve 1, which can maintain the durability of sealing effect. In summary, the connection structure provided by the application can seal the pipe butt joint laid on the slope section, ensure the effectiveness and durability of sealing, and provide reliable and stable pullout resistance, ensure the sealing and safety of pipe connection, at the same time, the connection structure itself can be disassembled, and it is convenient for subsequent pipe maintenance operation.

[0044] In the description of the application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the application.

[0045] In the description of the application, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "connected", "mounted", "connected" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0046] The preferred embodiments of the application are described above. It should be understood that the application is not limited to the above specific embodiments, and the devices and structures not described in detail should be understood as being implemented in the ordinary way in the art; any person skilled in the art can make many possible changes and modifications, or modify equivalent embodiments without departing from the technical solution of the application, which does not affect the essential content of the application. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the application, without departing from the technical solution of the application, still belongs to the protection scope of the technical solution of the application.

Claims

1. A sectional sealing connection structure for the inclined pipe of water reservoir water delivery, the outer wall of the pipe is preformed with an annular groove near the two pipe openings, and the connection structure is sealingly installed between the annular grooves of the two pipes; characterized in that, The connecting structure comprises two half-sealings, lock blocks detachably mounted between respective ends of the two half-sealings, and a serial connecting rod detachably mounted on the lock blocks to serially connect adjacent two connecting structures; the half-sealing comprises: a sealing sleeve in the shape of a semi-circular ring, used for sleeving between two pipe interfaces; two metal clamps, each embeddedly mounted on the inner side of the sealing sleeve, used for being correspondingly clamped in the annular grooves of the two pipes; two serial connecting racks, each fixed on the sealing sleeve; and each of the two metal clamps has a serial connecting rack movably connected between opposite ends of the metal clamp; and a locking mechanism comprising two lock members each slidably and fittingly mounted on the two serial connecting racks, two tightening assemblies each hinged on the lock member and distributed on the two sides of the sealing sleeve in the axial direction; the lock members on the same side of the sealing sleeve are hinged on the adjacent metal clamps; the lock block is located between the two opposite serial connecting racks on the two half-sealings; when the lock member is locked on the lock block, the lock member drives the metal clamp and the sealing sleeve to be tightly attached to the outer wall of the pipe through the tightening assembly; the tightening assembly comprises a plurality of transverse pins distributed in the circumferential direction of the metal clamp, the transverse pins are inserted on the metal clamp in the axial direction, the shaft ends of the plurality of transverse pins are fixed with connecting rods, and the connecting rods are collectively hinged with an arc-shaped pull rod at one end of the pull rod. The inner side of the sealing sleeve is provided with two embedding grooves coaxially arranged with the sealing sleeve and each in the shape of a ring; the radial cross section of the metal clamp is in the shape of U, and the two metal clamps are correspondingly embeddedly mounted in the two embedding grooves. The metal clamp is provided with a plurality of segmented slits in the circumferential direction, the segmented slits are through in the axial direction of the metal clamp, the plurality of segmented slits and the plurality of transverse pins in the two tightening assemblies assembled on the same metal clamp are distributed in the circumferential direction, and the embedding groove is provided with a clamping slit strip embedded in each segmented slit.

2. The inclined pipe sectional sealing connection structure for reservoir water delivery according to claim 1, characterized in that: Both ends of the metal clamp are provided with an extension hole; the serial connecting rack comprises two connecting plates fixed on the sealing sleeve, the two connecting plates correspondingly abut against the ends of the two metal clamps, and the connecting plate is fixed with a limiting pin passing through the extension hole.

3. The inclined pipe sectional sealing connection structure for reservoir water delivery according to claim 2, characterized in that: The serial connecting rack further comprises a bridge block fixed between the two connecting plates; the lock member comprises a screw rod holder slidably mounted on the bridge block and a screw rod rotatably mounted on the screw rod holder; the lock block is located between the two bridge blocks, and the screw rod is threadedly connected with the lock block; one end of the pull rod is hinged on the screw rod holder.

4. The inclined pipe sectional sealing connection structure for reservoir water delivery according to claim 1, characterized in that: The transverse pin further extends and is inserted in the sealing sleeve.

5. The inclined pipe sectional sealing connection structure for reservoir water delivery according to claim 1, characterized in that: The inner annular surface of the metal clamp is provided with clamping teeth, and the clamping teeth are exposed from the embedding groove.

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