WO2023232101A1 - 混凝土管 - Google Patents

混凝土管 Download PDF

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Publication number
WO2023232101A1
WO2023232101A1 PCT/CN2023/097705 CN2023097705W WO2023232101A1 WO 2023232101 A1 WO2023232101 A1 WO 2023232101A1 CN 2023097705 W CN2023097705 W CN 2023097705W WO 2023232101 A1 WO2023232101 A1 WO 2023232101A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing ring
socket end
sealing
groove
positioning
Prior art date
Application number
PCT/CN2023/097705
Other languages
English (en)
French (fr)
Inventor
郝百顺
Original Assignee
郝百顺
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 郝百顺 filed Critical 郝百顺
Publication of WO2023232101A1 publication Critical patent/WO2023232101A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
    • F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • F16L21/03—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed in the socket before connection

Definitions

  • the present application relates to the technical field of concrete pipes and socket interfaces, and in particular to a concrete pipe.
  • Concrete pipes are used to transport water at high volumes over long distances.
  • a sealing ring is usually provided.
  • the sealing ring When plugging in, the sealing ring is placed outside the socket end and inserted into the socket end together. Under the joint action of the spigot end and the socket end, the sealing ring will roll or slide between them, or even slip out of the limit step of the sealing groove, causing sealing failure.
  • the embodiment of the present application provides a concrete pipe that can reduce the risk of the sealing ring affecting the sealing of the concrete pipe due to sliding or rolling.
  • a concrete pipe including: at least one pipe body extending along a first direction.
  • the pipe body includes a socket end and a lining plate.
  • the socket end is located at the end of the pipe body along the first direction.
  • the lining plate is located inside the socket end.
  • the lining plate includes an inner wall surface.
  • the inner wall surface is provided with a sealing groove and a positioning groove; at least one sealing ring.
  • the sealing ring is located inside the lining plate. At least part of the sealing ring is coupled with the sealing groove. At least part of the sealing ring is coupled with the sealing groove.
  • the sealing ring is coupled with the positioning groove, and at least part of the sealing ring protrudes relative to the inner wall surface.
  • the sealing ring includes a sealing body, and at least part of the sealing The body is coupled with the sealing groove, and a cone-shaped structure is provided on the inside of the sealing body.
  • the inner diameter of the cone-shaped structure gradually decreases along the end direction away from the socket end.
  • the sealing ring further includes a positioning part, at least part of the positioning part is coupled with the positioning groove.
  • the inner wall surface is further provided with a protruding portion, and the protruding portion is located between the sealing groove and the positioning groove; the sealing ring further includes a recessed portion, and the recessed portion is coupled with the protruding portion.
  • the sealing ring further includes a skeleton, the skeleton is arranged in the positioning part along the circumferential direction of the sealing ring, and the skeleton is located in the space formed by the positioning groove.
  • the cross-sectional shape of the positioning groove is trapezoidal, and along the axial direction of the pipe body, the width of the bottom of the positioning groove is smaller than the width of the positioning portion.
  • the cross-sectional shape of the sealing groove is rectangular.
  • the positioning groove is located on a side of the end of the sealing groove close to the socket end.
  • the minimum inner diameter of the inner wall surface of the lining plate is equal to the inner diameter of the socket end.
  • the number of pipe bodies is at least two, and at least two pipe bodies are inserted in sequence;
  • the pipe body also includes a spigot end, and the spigot end is located at an end of the pipe body away from the socket end along the first direction;
  • the socket end of one pipe body is inserted into the socket end of the other pipe body, and the inside of the sealing ring at the socket end is in contact with the outside of the socket end.
  • the socket end is provided with a reducing structure, and the outer diameter of the reducing structure gradually increases along the direction from the socket end to the socket end.
  • the material stiffness of the lining plate is greater than or equal to steel; the lining plate is prefabricated inside the socket end.
  • the concrete pipe provided by the embodiment of the present application has a lining plate on the inside of the socket end, and a sealing groove and a positioning groove on the lining plate.
  • the structural strength of the lining plate can make up for the structural strength difference of the socket end of the concrete pipe, thereby reducing the sealing
  • the risk of deformation of grooves and locating grooves reduces the possibility of seal rolling.
  • the positioning groove can fix the position of the sealing ring relative to the concrete pipe and reduce the possibility of the sealing ring sliding. By reducing the risk of rolling and sliding of the sealing ring, embodiments of the present application can improve the sealing effect and sealing reliability.
  • Figure 1 is a schematic structural diagram of a concrete pipe according to an embodiment of the present application.
  • FIG. 2 is a sectional view of the concrete pipe taken along section A-A in FIG. 1 .
  • Figure 3 is a schematic structural diagram of the sealing ring of the concrete pipe according to the embodiment of the present application.
  • Figure 4 is a cross-sectional schematic diagram of the lining plate of the concrete pipe according to the embodiment of the present application.
  • Figure 5 is a schematic structural diagram of a plurality of pipe bodies of a concrete pipe according to an embodiment of the present application when they are connected.
  • Figure 6 is a schematic cross-sectional view of the sealing ring of the concrete pipe according to the embodiment of the present application.
  • B corresponding to A means that B is associated with A, and B can be determined based on A.
  • determining B based on A does not mean determining B only based on A.
  • B can also be determined based on A and/or other information.
  • each section of concrete pipe is a socket end and the other end is a socket end.
  • the multiple sections of concrete pipes are then inserted in sequence.
  • the socket of a certain section of concrete pipe The end is inserted into the socket end of the adjacent concrete pipe.
  • a sealing ring is installed between the socket end and the socket end. First set the sealing ring on the socket end, and then insert the socket end and socket end.
  • the cross-section of the sealing ring is usually circular and forms a columnar or conical shape, the relative movement between the socket end and the socket end will cause the sealing ring to roll.
  • the sealing ring with elastic elongation properties seals under the reaction force of the socket end. It will cross the limit step and cannot enter the socket end as scheduled. It will cause damage to the sealing ring. Even if the sealing ring is not damaged, it will cause the sealing ring to not be close to the inner and outer walls of the socket and the plug end, resulting in sealing failure of the concrete pipe. Therefore, in actual construction, the traditional concrete socket pipe sealing method has a high probability of sealing failure.
  • embodiments of the present application provide a concrete pipe.
  • One end of the pipe body is a socket end
  • a lining plate is provided inside the socket end
  • a sealing groove and a positioning groove are provided on the lining plate.
  • FIG. 1 is a schematic structural diagram of a concrete pipe according to an embodiment of the present application.
  • FIG. 2 is a sectional view of the concrete pipe taken along section A-A in FIG. 1 .
  • Figure 3 is a schematic structural diagram of the sealing ring of the concrete pipe according to the embodiment of the present application.
  • Figure 4 is a cross-sectional schematic diagram of the lining plate of the concrete pipe according to the embodiment of the present application.
  • a concrete pipe including: at least one pipe body 1 extending along a first direction.
  • the pipe body 1 includes a socket end 11 and a lining plate 12.
  • the socket end 11 Located at the end of the pipe body 1 along the first direction, the lining plate 12 is located inside the socket end 11.
  • the lining plate 12 includes an inner wall surface, and the inner wall surface is provided with a sealing groove 121 and a positioning groove 122; at least one sealing ring 2, the sealing ring 2 is located inside the lining plate 12, at least part of the sealing ring 2 is coupled with the sealing groove 121, at least part of the sealing ring 2 is coupled with the positioning groove 122, and at least part of the sealing ring 2 protrudes relative to the inner wall surface.
  • cross-sectional shape of the concrete pipe in the embodiment of the present application along the vertical circumferential direction may be circular or multi-deformed.
  • a circular shape is used as an example for explanation.
  • the pipe body 1 can be made in a prefabricated form.
  • the sealing ring 2 is installed inside the socket end 11 of the prefabricated pipe body 1 . Insert the plugging object into the socket end 11 to realize the connection.
  • the plug-in object can be other pipelines or other pipe bodies of concrete pipes 1.
  • the pipe body 1 is made by pouring concrete. When pouring the concrete, the lining plate 12 is placed inside the socket end 11, so that the lining plate 12 is located at the socket end 11 of the formed pipe body 1. inside.
  • the lining plate 12 is made of a material with greater structural strength, thereby reducing the risk of the sealing groove 121 being deformed or cracked, making up for the weak local strength of the socket end of the concrete pipe, thereby reducing the risk of rolling or sliding of the sealing ring 2
  • the possibility of separation from the sealing groove 121 ensures the sealing effect of the concrete pipe in the embodiment of the present application.
  • a sealing groove 121 is provided on the inner wall surface of the lining plate 12, and a part of the sealing ring 2 is coupled with the sealing groove 121, thereby ensuring the sealing effect of the sealing ring 2 on the insertion joint.
  • a positioning groove 122 is also provided on the inner wall surface of the lining plate 12 , and a part of the sealing ring 2 is coupled with the positioning groove 122 . Even if the plugged object is inserted into the socket end 11 and the sealing ring 2 is subjected to a shearing moment, since a part of the sealing ring 2 is coupled with the positioning groove 122, the possibility of rolling or sliding of the sealing ring 2 can be reduced, thereby ensuring good sealing. Effect.
  • the protruding portion of the sealing ring 2 relative to the inner wall surface is deformed by the plugging object, and bends in a direction away from the socket end 11 .
  • the protruding portion of the sealing ring 2 relative to the inner wall surface has deformed, and will tend to return to deformation, causing the The sealing ring 2 is further compressed, thereby generating greater frictional resistance to prevent the plugged object from exiting the socket end 11 , thereby realizing the self-locking function after plugging.
  • the sealing ring 2 includes a sealing body 21, at least part of the sealing body 21 is coupled with the sealing groove 121, the inside of the sealing ring 2 is provided with a tapered structure, and the inner diameter of the tapered structure extends along the edge away from the bearing. The end direction of the oral end 11 gradually decreases.
  • the inner side of the sealing ring 2 is provided with a tapered structure, and the inner diameter of the tapered structure gradually decreases along the end direction away from the socket end 11, which can play a role in alignment during insertion.
  • the plug-in object When the connection object is inserted into the pipe body 1, the plug-in object will be inserted from the end with the larger inner diameter of the formation structure and aligned with the guide of the tapered structure so that the axis of the plug-in object coincides with the axis of the pipe body 1 , achieve the purpose of alignment, thereby reducing the sealing ring 2.
  • the difference in force received at various places along the circumferential direction of the pipe body 1 further reduces the possibility of failure of the sealing ring 2 due to uneven force, thus enhancing the sealing effect.
  • the sealing ring 2 further includes a positioning portion 22 , at least part of the positioning portion 22 is coupled with the positioning groove 122 .
  • the positioning portion 22 is used to fix the position of the sealing ring 2 relative to the lining plate 12 , in particular to reduce the possibility of the sealing ring 2 sliding relative to the lining plate 12 , thereby reducing the risk of sealing failure caused by the sealing ring 2 disengaging from the sealing groove 121 .
  • the inner wall surface is also provided with a raised portion, and the raised portion is located between the sealing groove 121 and the positioning groove 122; the sealing ring 2 also includes a recessed portion 24, and the recessed portion 24 and the raised portion are coupling.
  • the coupling of the protruding portion and the recessed portion 24 can further reduce the possibility of the sealing ring 2 sliding relative to the lining plate 12 .
  • the protruding portion and the recessed portion 24 are coupled, and the positioning portion 22 and the positioning groove 122 are coupled, so that the lining plate 12 can exert a torque in the opposite direction on the sealing ring 2 , reducing the possibility of the sealing ring 2 rolling relative to the lining plate 12 and reducing the risk of sealing failure caused by the sealing ring 2 coming out of the sealing groove 121 .
  • the sealing ring 2 also includes a skeleton 23 .
  • the skeleton 23 is disposed in the positioning portion 22 along the circumferential direction of the sealing ring 2 .
  • the skeleton 23 is located in the space formed by the positioning groove 122 .
  • the skeleton 23 is used to support the sealing ring 2 so that the sealing ring 2 is in an expanded state.
  • the skeleton 23 can be made of a rigid material in a compressed state, and exerts a radially outward force on the sealing ring 2 so that the sealing ring 2 is in an outwardly stretched state. If the sealing ring 2 slides or rolls relative to the lining plate 12 , the positioning portion 22 will be separated from the positioning groove 122 .
  • the tension of the skeleton 23 itself can prevent the positioning part 22 from being separated from the positioning groove 122, thereby reducing the possibility of the sealing ring 2 sliding or rolling relative to the liner 12, thereby enhancing the sealing effect. .
  • the positioning groove 122 is located on one side of the sealing groove 121 close to the end of the socket end 11; the skeleton 23 of the sealing ring 2 is located in the positioning groove 122, and the tension of the skeleton 23 can make the seal body 21 can be maintained in the sealing groove 121 to prevent the sealing body 21 from protruding from the sealing groove 121 and achieve the first sealing of the sealing ring 2 and the socket end 11 .
  • the positioning groove 122 when the insertion object is inserted into the pipe body 1, since the positioning groove 122 is located on the side of the sealing groove 121 close to the end of the socket end 11, the positioning groove 122 can exert a torque on the sealing ring 2 to hinder its rotation. Therefore, The possibility of the sealing ring 2 rolling relative to the lining plate 12 can be reduced.
  • positioning The maximum inner diameter of the groove 122 is larger than the maximum inner diameter of the sealing groove 121 , which can increase the force arm of the positioning groove 122 exerting a moment on the positioning part 22 , thereby reducing the force exerted by the positioning groove 122 on the positioning part 22 , thereby reducing the sealing ring 2 Possibility of failure due to excessive force.
  • the cross-sectional shape of the positioning groove 122 is a trapezoid, and the side close to the end surface of the socket end 11 corresponds to the hypotenuse of the trapezoid; in the uncompressed state, at least part of the lateral direction of the positioning portion 22
  • the cross-sectional shape is semicircular. Since the cross section of the positioning groove 122 is trapezoidal, and the side close to the end surface of the socket end 11 corresponds to a hypotenuse of the trapezoid, therefore, when installing the sealing ring 2, the sealing ring 2 can be first moved through the corresponding hypotenuse.
  • the sealing ring 2 is squeezed and the positioning part 22 is deformed.
  • the positioning part 22 with a semicircular cross-sectional shape can be coupled with the positioning groove 122 with a right-angled trapezoidal cross-sectional shape. It can also play a sealing role.
  • the bottom width of the positioning groove 122 along the axial direction of the socket end 11 is smaller than the width of the positioning portion 22 .
  • the trapezoidal cross-sectional shape can make it easier for the positioning portion 22 to enter the positioning groove 122 .
  • the bottom width of the positioning groove 122 is slightly smaller, so that It is more difficult for the positioning part 22 to slide out of the positioning groove 122. Squeezing the positioning part 22 into the positioning groove 122 provides an additional sealing guarantee.
  • the cross-sectional shape of the sealing groove 121 is a rectangle; in the uncompressed state, the cross-sectional shape of at least part of the sealing body 21 is a semicircle.
  • the sealing groove 121 with a rectangular cross-sectional shape can reduce the possibility of separation between the sealing body 21 and the sealing groove 121, thereby ensuring a good sealing effect. Since the maximum inner diameter of the positioning groove 122 is larger than the maximum inner diameter of the sealing groove 121 , the sealing groove 121 with a rectangular cross-sectional shape will not have a significant impact on the installation of the sealing ring 2 .
  • the sealing ring 2 is squeezed and the sealing body 21 is deformed.
  • the sealing body 21 with a semicircular cross-sectional shape can be coupled with the rice flour groove with a rectangular cross-sectional shape to ensure Sealing effect.
  • a portion of the positioning portion 22 is first assembled into the positioning groove 122 . Then, push the sealing ring 2 at one place in the circumferential direction of the sealing ring 2 to make the sealing ring 2 eccentric with the socket end 11. At this time, the sealing ring 2 at that place is coupled with the liner 12. From there, gradually tap the sealing ring 2 along the circumferential direction of the sealing ring 2, so that other parts of the sealing ring 2 are also coupled with the lining plate 12, until the sealing ring 2 is coupled with the lining plate 12 everywhere along the circumferential direction. , sealing ring 2 and bearing The mouth end 11 is coaxial, and the assembly of the sealing ring 2 and the socket end 11 is completed.
  • the diameter of the skeleton 23 of the sealing ring 2 is larger than the minimum diameter of the lining plate 12 , so that the skeleton 23 is also located in the positioning groove 122 .
  • the minimum inner diameter of the inner wall surface of the lining plate 12 is equal to the inner diameter of the socket end 11, so that the inner wall surface of the lining plate 12 and the inner side of the socket end 11 can form a complete cylinder. , so that the plugged object can be smoothly inserted into the socket end 11, and the lining plate 12 is prevented from interfering with the plugging of the plugged object.
  • Figure 5 is a schematic structural diagram of a plurality of pipe bodies of a concrete pipe according to an embodiment of the present application when they are connected.
  • the number of pipe bodies 1 is at least two, and at least two pipe bodies 1 are inserted in sequence; the pipe body 1 also includes a spigot end 13, and the spigot end 13 is located on the pipe body 1 along the first direction away from the socket.
  • one end of the pipe body 1 is the socket end 11 and the other end is the socket end 13 .
  • the socket end 13 of one is inserted into the socket end 11 of the other.
  • the sealing body 21 of the sealing ring 2 is in contact with the outer wall surface of the socket end 13, thus realizing the two pipe bodies. 1 seal between.
  • the sealing ring 2 is in a compressed state, and the sealing body 21 exerts pressure on the outer wall surface of the socket end 13 to achieve sealing between the sealing ring 2 and the outer wall surface of the socket end 13 .
  • the entire pipe body 1 of the concrete pipe may be a curved pipe or a straight pipe.
  • the parts where the socket end 11 and the spigot end 13 are connected are both straight pipes.
  • the outside of the socket end 13 is provided with a chamfer structure, so that there are no obvious edges and corners on the outside of the socket end 13 .
  • the sealing ring 2 will be pressed tightly by the socket end 13 and the socket end 11. Therefore, when the socket end 13 is inserted into the socket end 11, the outside of the socket end 13 The edge will slide over part of the surface of the sealing body 21 .
  • the chamfering structure can reduce the risk of scratching the surface of the sealing body 21 by the outer edge of the spigot tube, and has a guiding function so that the sealing body 21 has good sealing performance.
  • the diameter of the end edge of the socket end 13 after chamfering should be less than or equal to the inner diameter of the sealing ring 2 .
  • the socket end 13 is provided with a reducing structure, and the outer diameter of the reducing structure gradually increases along the direction from the socket end 13 to the socket end 11 . Therefore, the outer edge of the socket end 13 is tapered, It is convenient for the socket end 13 to be inserted into the socket end 11. When the socket end 13 and the socket end 11 are inserted, the tapered edge can be prevented from damaging the sealing ring 2, thereby ensuring a good sealing effect.
  • the material stiffness of the lining plate is greater than or equal to steel, and may be an alloy or an organic polymer material with relatively high structural stiffness.
  • the lining plate is prefabricated inside the socket end 11 and poured directly on the socket end 11, which can effectively prevent leakage between the lining plate and the concrete pipe, and prevent the concrete pipe socket from leaking. There is a risk that the end 11 will be cracked by the socket end 13 and the sealing ring 2.
  • Figure 6 is a schematic cross-sectional view of the sealing ring of the concrete pipe according to the embodiment of the present application.
  • the sealing ring 2 provided by the embodiment of the present application is used for the concrete pipe in Embodiment 1 of the present application.
  • the embodiment of the present application provides a sealing ring 2, which includes: a sealing body 21, at least part of the sealing body 21 extending outward along the radial direction of the sealing ring 2; a positioning portion 22 connected with the sealing body 21 along the axial direction of the sealing ring 2 Connection, at least part of the positioning part 22 extends outward along the radial direction of the seal ring 2; the inner diameter of the positioning part 22 is smaller than the inner diameter of the sealing body 21; the annular skeleton 23 is located in the positioning part 22.
  • the sealing ring 2 When using the sealing ring 2 of the embodiment of the present application, the sealing ring 2 is installed inside the socket end 11 of the pipe body 1 of the concrete pipe, and then the socket end 13 of the other pipe body 1 is inserted. Ring 2 to achieve sealing between the two pipe bodies 1.
  • the sealing body 21 is used to achieve the sealing effect of the sealing ring 2 and extends along the radial direction of the sealing ring 2 to enable the sealing ring 2 to couple with the sealing groove 121 of the socket end 11 of the pipe body 1 to achieve the purpose of sealing.
  • the positioning portion 22 is used to fix the position of the sealing ring 2 relative to the socket end 11 and extends along the radial direction of the sealing ring 2, which can reduce the possibility of the sealing ring 2 rolling or sliding relative to the socket end 11, thereby enhancing the sealing effect.
  • the annular skeleton 23 can support the sealing ring 2 and reduce the possibility of the positioning part 22 detaching from the positioning groove 122. At the same time, under the action of the outward tension of the skeleton 23, there is a radial outward force on the positioning part 22. The positioning portion 22 is pressed into the positioning groove 122 to further enhance the sealing effect.
  • a tapered structure is provided on the inner side of the sealing ring 2 .
  • the inner diameter of the tapered structure gradually increases.
  • the tapered structure inside the sealing ring 2 can play a role Correcting effect.
  • the socket end 13 When the socket end 13 is inserted into the socket end 11, the socket end 13 will be inserted into the socket end 11 under the guidance of the tapered side of the tapered structure.
  • the axis of the socket end 13 is in line with the axis of the socket end 11. The axes coincide to achieve the purpose of alignment and reduce the difference in force received by the sealing ring 2 at various positions in the circumferential direction of the sealing ring 2, thereby reducing the possibility of the sealing ring 2 failing due to uneven stress.
  • the inner diameter of the tapered structure gradually decreases.
  • the positioning part 22 is arranged on the side with a larger inner diameter of the tapered structure.
  • the positioning part 22 interacts with the positioning groove 122 of the socket end 11 to generate a moment that hinders the rotation of the sealing ring 2. Therefore, the relative position of the sealing ring 2 to the socket can be reduced. The risk of end 11 rolling is reduced and the sealing effect is improved.
  • the diameter of the skeleton 23 in the positioning part 22 of the sealing ring 2 is larger than the minimum diameter of the lining plate 12.
  • the radial outward tension of the rigid skeleton 23 realizes that the positioning part 22 is effectively fixed to the sealing ring 2 in the positioning groove 122. Effectively resist axial thrust during the mating process.
  • the cross-sectional shape of the sealing body 21 includes a first side 211 , a second side 212 and a third side 213 extending in the radial direction of the sealing ring 2 .
  • the second side 212 , the first side 211 and The third sides 213 are connected in sequence, and the first side 211 is a convex curve; the diameters of the sealing body 21 corresponding to the second side 212 and the third side 213 are both smaller than the diameter of the sealing body 21 corresponding to the first side 211 .
  • the second side 212 , the first side 211 and the third side 213 are connected in sequence and correspond to a part of the cross-sectional shape of the sealing body 21 .
  • the sealing body 21 On the sealing body 21 , the corresponding portions of the second side 212 , the first side 211 and the third side 213 are coupled with the sealing groove 121 of the socket end 11 .
  • the diameters of the sealing body 21 corresponding to the second side 212 and the third side 213 are both smaller than the diameter of the sealing body 21 corresponding to the first side 211.
  • the corresponding parts of the second side 212 and the third side 213 ensure that the sealing body 21 can move along the sealing body 21.
  • the sealing ring 2 extends radially outward.
  • the first side 211 is a convex curve, for example, it can be a circular arc or an elliptical arc, so that the sealing body 21 can couple with the sealing groove 121 of the socket end 11 under a certain external force.
  • the sealing body 21 is extruded and deformed, and the corresponding part of the first side 211 can be relatively tightly coupled with the sealing groove 121. Ensure sealing effect.
  • the cross-sectional shape of the positioning portion 22 includes a fourth side 221 , a fifth side 222 and a sixth side 223 extending in the radial direction of the sealing right.
  • the fifth side 222 and the fourth side 221 It is connected to the sixth side 223 in sequence, and the fourth side 221 is a convex curve.
  • the fifth side 222 , the fourth side 221 and the sixth side 223 are connected in sequence and correspond to a part of the cross-sectional shape of the positioning part 22 .
  • the distance between the fifth side 222 and the sixth side 223 is greater than the width of the portion and the bottom of the positioning groove 122 .
  • the fourth side 221 is a convex curve, for example, it can be a circular arc or an elliptical arc, so that the positioning portion 22 can fit with the positioning groove 122 of the socket end 11 under the radial outward tension of the frame 23, This further enhances the sealing effect.
  • the frame 23 is located in the area formed by the positioning portion 22 corresponding to the fifth side 222 , the fourth side 221 and the sixth side 223 .
  • the positioning portion 22 is coupled with the positioning groove 122 , and the area formed by the positioning portion 22 corresponding to the fifth side 222 , the fourth side 221 and the sixth side 223 is located in the positioning groove 122 . Therefore, the skeleton 23 is located in the space formed by the positioning groove 122 , thereby reducing the possibility that the positioning part 22 is detached from the positioning groove 122 , making it difficult for the sealing ring 2 to roll or slide relative to the socket end 11 .
  • the cross-sectional shape of the sealing body 21 also includes a seventh side 241, the third side 213, the seventh side 241 and the fifth side 222 are connected in sequence, and the third side 213, the seventh side 241 and the fifth side 222 are connected with the recessed portion 24 corresponding to the cross-sectional shape.
  • the recessed portion 24 can be coupled with the convex portion of the socket end 11 to further reduce the possibility of the sealing ring 2 sliding relative to the lining plate 12 .
  • the seventh side 241 is used to connect the third side 213 and the fifth side 222 to form a concave shape.
  • the third side 213 , the seventh side 241 and the fifth side 222 correspond to the recessed portion 24 .
  • the minimum outer diameter of the recessed portion 24 is smaller than the diameter of the frame 23 so that the frame 23 can be located within the positioning groove 122 of the socket end 11 .
  • the convex portion of the socket end 11 can block the frame 23 by exerting reverse thrust, thereby preventing the sealing ring 2 from moving relative to the socket end 11 .
  • the cross-sectional shape of the sealing body 21 also includes an eighth side 214, and the sixth side 223, the eighth side 214 and the second side 212 are connected in sequence; the eighth side 214 corresponds to the inner side of the tapered structure.
  • the second side 212, the first side 211, the third side 213, the seventh side 241, the fifth side 222, the fourth side 221, the sixth side 223, and the eighth side 214 are connected end to end in order to form the horizontal direction of the sealing ring 2.
  • the skeleton 23 exerts an outward force along the radial direction of the seal ring 2 on the positioning part 22 . Since the skeleton 23 is located in the space formed by the positioning groove 122 , the tension of the skeleton 23 itself can hinder the positioning part. 22 is separated from the positioning groove 122, thereby reducing the possibility of the sealing ring 2 sliding or rolling relative to the liner 12, thereby enhancing the sealing effect.

Abstract

一种混凝土管，其包括：至少一个沿第一方向延伸的管体（1），管体（1）包括承口端（11）和衬板（12），承口端（11）位于管体（1）沿第一方向的端部，衬板（12）位于承口端（11）的内侧，衬板（12）包括内壁面，内壁面设有密封槽（121）和定位槽（122）；至少一个密封圈（2），密封圈（2）位于衬板（12）的内侧，至少部分的密封圈（3）与密封槽（121）耦合，至少部分的密封圈（2）与定位槽（122）耦合，至少部分的密封圈（3）相对内壁面凸出。在承口端（11）内侧设置衬板（12），并在衬板（12）上设置密封槽（121）和定位槽（122），衬板（12）结构强度能够弥补混凝土管的承口端（11）强度差问题，从而降低密封槽（121）和定位槽（122）发生形变的风险，进而降低密封圈（3）滚动的可能性。通过防止密封圈（3）滚动和滑动，来提高密封效果，增加密封圈（3）的定位的可靠性，同时实现密封圈（3）和承口端间（11）的密封。

Description

混凝土管
相关申请的交叉引用
本申请要求享有于2022年06月02日提交的名称为“混凝土管”的中国专利申请202210622954.0的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及混凝土管及承插接口技术领域，尤其涉及一种混凝土管。
背景技术
混凝土管用于长距离大流量地输送水。在将两个混凝土管插接在一起时，为了保证混凝土管插接处的密封良好，通常设置密封圈。在插接时，密封圈套在插口端外，并一同插入承口端。在插口端和承口端的共同作用下，密封圈会在二者之间滚动或者滑动，甚至从密封槽的限位台阶中滑出，造成密封失效。
发明内容
本申请实施例提供了一种混凝土管，能够降低密封圈因滑动或滚动而影响混凝土管密封的风险。
一方面，本申请实施例提供一种混凝土管，包括：至少一个沿第一方向延伸的管体，管体包括承口端和衬板，承口端位于管体沿第一方向的端部，衬板位于承口端的内侧，衬板包括内壁面，内壁面设有密封槽和定位槽；至少一个密封圈，密封圈位于衬板的内侧，至少部分的密封圈与密封槽耦合，至少部分的密封圈与定位槽耦合，至少部分的密封圈相对内壁面凸出。
根据本申请一方面的实施例，密封圈包括密封本体，至少部分的密封 本体与密封槽耦合，密封本体的内侧设有锥形结构，锥形结构的内径沿远离承口端的端部方向逐渐减小。
根据本申请一方面的实施例，密封圈还包括定位部，至少部分的定位部与定位槽耦合。
根据本申请一方面的实施例，内壁面还设有凸起部，凸起部位于密封槽和定位槽之间；密封圈还包括凹陷部，凹陷部与凸起部耦合。
根据本申请一方面的实施例，密封圈还包括骨架，骨架沿密封圈的周向设置于定位部内，骨架位于定位槽形成的空间内。
根据本申请一方面的实施例，定位槽的横截面形状为梯形，沿管体的轴向，定位槽底部的宽度小于定位部的宽度。
根据本申请一方面的实施例，密封槽的横截面形状为矩形。
根据本申请一方面的实施例，定位槽位于密封槽靠近承口端的端部的一侧。
根据本申请一方面的实施例，衬板的内壁面的最小内径与承口端的内径相等。
根据本申请一方面的实施例，管体的数量为至少两个，至少两个管体依次插接；管体还包括插口端，插口端位于管体沿第一方向远离承口端的一端；插接的两个管体中，其中一个管体的插口端插入另一个管体的承口端，承口端的密封圈的内侧与插口端的外侧抵接。
根据本申请一方面的实施例，插口端设有变径结构，沿从插口端到承口端方向，变径结构的外径逐渐增加。
根据本申请一方面的实施例，衬板的材料刚度大于等于钢；衬板预制于承口端内侧。
本申请实施例提供的混凝土管，在承口端内侧设置衬板，并在衬板上设置密封槽和定位槽，衬板结构强度能够弥补混凝土管的承口端结构强度差问题，从而降低密封槽和定位槽发生形变的风险，进而降低密封圈滚动的可能性。此外定位槽能够固定密封圈相对混凝土管的位置，减小密封圈滑动的肯能行。通过降低密封圈滚动和滑动的风险，本申请实施例能够提高密封效果和密封的可靠性。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例的混凝土管的一种结构示意图。
图2为图1中的混凝土管的A-A截面的剖视图。
图3为本申请实施例的混凝土管的密封圈的一种结构示意图。
图4为本申请实施例的混凝土管的衬板的一种横截面示意图。
图5为本申请实施例的混凝土管的多个管体插接时的一种结构示意图。
图6为本申请实施例的混凝土管的密封圈的一种横截面示意图。
附图标记：
1、管体；11、承口端；12、衬板；121、密封槽；122、定位槽；
13、插口端；
2、密封圈；21、密封本体；211、第一边；212、第二边；213、第三
边；214、第八边；22、定位部；221、第四边；222、第五边；223、第六边；23、骨架；24、凹陷部；241、第七边。
具体实施方式
下面将详细描述本申请的各个方面的特征和示例性实施例。在下面的详细描述中，提出了许多具体细节，以便提供对本申请的全面理解。但是，对于本领域技术人员来说很明显的是，本申请可以在不需要这些具体细节中的一些细节的情况下实施。下面对实施例的描述仅仅是为了通过示出本申请的示例来提供对本申请的更好的理解。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将结合附图对实施例进行详细描述。
诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
应当理解，在描述部件的结构时，当将一层、一个区域称为位于另一层、另一个区域“上面”或“上方”时，可以指直接位于另一层、另一个区域上面，或者在其与另一层、另一个区域之间还包含其它的层或区域。并且，如果将部件翻转，该一层、一个区域将位于另一层、另一个区域“下面”或“下方”。
另外，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应理解，在本申请实施例中，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
申请人发现，在使用混凝土管时，通常会预制多段混凝土管，每段混凝土管一端为承口端，另一端为插口端，再将多段混凝土管依次插接，其中，某段混凝土管的插口端插入相邻的混凝土管的承口端。为了使插接处密封，会在插口端和承口端之间设置密封圈。先将密封圈套设在插口端，再将插口端和承口端插合。但是在插接时，由于密封圈的横截面通常为圆形，形成柱状或锥状，承口端与插口端之间的相对移动会造成密封圈滚动。在插接时，具有弹性拉长性能的密封圈在承口端的反作用力下密封圈 会越过限位台阶，不能按预定进入承口端。会造成密封圈的损坏，即使密封圈不损坏也会造成密封圈不能紧贴承、插端的内外壁，导致混凝土管的密封失效。所以在实际施工中，传统的混凝土承插管密封方式，密封失效的概率很高。
鉴于上述问题，本申请实施例提供了一种混凝土管，管体的一端为承口端，在承口端内侧设置衬板，在衬板上设置密封槽和定位槽。通过设置结构强度较高的衬板，能够弥补混凝土管的承口端结构强度差问题，从而降低密封槽和定位槽发生形变和被插口涨裂的风险，进而降低密封圈滚动或滑动失效的可能性。此外，定位槽能够固定密封圈相对混凝土管的位置，减小密封圈滑动或滚动的可能性。通过降低密封圈滚动和滑动的风险，本申请实施例能够提高密封效果及密封的可靠性，并具有止退和自锁功能。
实施例1
图1为本申请实施例的混凝土管的一种结构示意图。图2为图1中的混凝土管的A-A截面的剖视图。图3为本申请实施例的混凝土管的密封圈的一种结构示意图。图4为本申请实施例的混凝土管的衬板的一种横截面示意图。
请参阅图1至图4，本申请实施例提供了一种混凝土管，包括：至少一个沿第一方向延伸的管体1，管体1包括承口端11和衬板12，承口端11位于管体1沿第一方向的端部，衬板12位于承口端11的内侧，衬板12包括内壁面，内壁面设有密封槽121和定位槽122；至少一个密封圈2，密封圈2位于衬板12的内侧，至少部分的密封圈2与密封槽121耦合，至少部分的密封圈2与定位槽122耦合，至少部分的密封圈2相对内壁面凸出。
需要说明的是本申请实施例的混凝土管沿垂直周向的横截面形状可以为圆形或多变形，本申请实施例中，以圆形为例进行说明。
管体1可以采用预制的形式来先制作好，在安装混凝土管时，将密封圈2安装在预制好的管体1的承口端11内侧。将插接对象插入承口端11，实现连接。插接对象可以是其他管路，也可以是混凝土管的其他管体 1。管体1采用混凝土浇筑的形式来制作，在浇筑混凝土时，将衬板12设置在承口端11的内侧的位置，从而使得衬板12位于制作成型后的管体1的承口端11的内侧。衬板12采用结构强度较大的材料制成，从而降低密封槽121发生形变或被胀裂的风险，弥补混凝土管的承口端局部强度较差的缺陷，进而降低密封圈2因滚动或滑动与密封槽121脱离的可能性保证本申请实施例的混凝土管的密封效果。
在衬板12的内壁面设置密封槽121，并使密封圈2的一部分与密封槽121耦合，从而保证密封圈2对插接处的密封效果。在衬板12的内壁面还设置定位槽122，并使密封圈2的一部分与定位槽122耦合。即使插接对象插入承口端11，密封圈2受到剪切力矩，但由于密封圈2的一部分与定位槽122耦合，因此能够减小密封圈2滚动或滑动的可能性，进而保证良好的密封效果。当插接对象与承口端11插接时，至少部分的密封圈2相对内壁面凸出，使得密封圈2相对内壁面凸出的部分能够与插接对象抵接，从而达到密封的目的。
在插接对象插入承口端11时，密封圈2相对内壁面凸出的部分受到插接对象的作用，产生形变，朝向背离承口端11的方向弯曲。在插接对象完全插入承口端11后，如果在外力作用下，插接对象出现退出的趋势时，密封圈2相对内壁面凸出的部分已经产生形变，会产生回复形变的趋势，而使密封圈2被进一步压紧，从而产生更大的摩擦阻力，以阻碍插接对象从承口端11退出，即实现了插接后的自锁功能。
进一步地，继续参阅图1至图4，密封圈2包括密封本体21，至少部分的密封本体21与密封槽121耦合，密封圈2的内侧设有锥形结构，锥形结构的内径沿远离承口端11的端部方向逐渐减小。
当插接对象与管体1插合时，密封圈2的至少部分的密封本体21与密封槽121耦合，能够实现密封圈2与承口端11之间的密封。密封圈2的内侧设有锥形结构，且锥形结构的内径沿远离承口端11的端部方向逐渐减小，能够在插接时起到对正的作用。当连连接对象与管体1插合时，插接对象会从队形结构内径较大的一端插入，同归锥形结构的导向对正，使得插接对象的轴线与管体1的轴线重合，达到对正的目的，从而减小密封圈 2沿管体1的周向的各处受到的作用力的差异，进一步降低密封圈2因受力不均而失效的可能性，进而增强密封效果。
进一步地，继续参阅图1至图4，密封圈2还包括定位部22，至少部分的定位部22与定位槽122耦合。定位部22用于固定密封圈2相对于衬板12的位置，尤其是降低密封圈2相对衬板12滑动的可能性，从而降低因密封圈2脱离密封槽121而引起密封失效的风险。
进一步地，继续参阅图1至图4，内壁面还设有凸起部，凸起部位于密封槽121和定位槽122之间；密封圈2还包括凹陷部24，凹陷部24与凸起部耦合。凸起部与凹陷部24耦合，能够进一步降低密封圈2相对衬板12滑动的可能性。此外，当密封圈2受到剪切力矩时，凸起部和凹陷部24之间耦合，且定位部22与定位槽122之间耦合，从而使衬板12能够对密封圈2施加相反方向的力矩，降低密封圈2相对衬板12滚动的可能性，减小因密封圈2脱离密封槽121而引起密封失效的风险。
进一步地，继续参阅图1至图4，密封圈2还包括骨架23，骨架23沿密封圈2的周向设置于定位部22内，骨架23位于定位槽122形成的空间内。骨架23用于支撑密封圈2，以使密封圈2处于展开的状态。需要说明的是，骨架23可以为处于压缩状态的刚性材料制成，对密封圈2施加沿密封圈2径向向外的作用力，以使密封圈2处于外张的状态。如果密封圈2相对衬板12滑动或滚动，定位部22都会与定位槽122脱离。由于使骨架23位于定位槽122形成的空间内，骨架23本身的张力能够阻碍定位部22与定位槽122的脱离，从而降低密封圈2相对衬板12滑动或滚动的可能性，进而增强密封效果。
进一步地，继续参阅图1至图4，定位槽122位于密封槽121靠近承口端11的端部的一侧；密封圈2的骨架23位于定位槽122中，骨架23的张力能够使得密封本体21能够保持在密封槽121内，防止密封本体21从密封槽121中脱出并达到密封圈2和承口端11的第一次密封。
此外，在插接对象与管体1插接时，由于定位槽122位于密封槽121靠近承口端11的端部的一侧，定位槽122能够对密封圈2施加阻碍其转动的力矩，因此能够降低密封圈2相对衬板12滚动的可能性。此外，定位 槽122的最大内径大于密封槽121的最大内径，能够使定位槽122对定位部22施加力矩的力臂变大，从而降低定位槽122对定位部22施加的作用力大小，从而降低密封圈2因受力过大而失效的可能性。
进一步地，继续参阅图4，定位槽122的横截面形状为梯形，且靠近承口端11的端面的一侧对应为梯形的斜边；在未压缩状态下，至少部分的定位部22的横截面形状为半圆形。由于定位槽122的横截面为梯形，且靠近承口端11的端面的一侧对应为梯形的一条斜边，因此，在安装密封圈2时，可以通过斜边对应处，将密封圈2先倾斜插入定位槽122，再转动密封圈2，使得定位部22与定位槽122耦合且密封本体21与密封槽121耦合。另一条边能够降低定位部22从定位槽122中滑出的可能性。在插接对象与管体1插接时，密封圈2受到挤压，定位部22发生形变，横截面形状为半圆形的定位部22能够与横截面形状为直角梯形的定位槽122耦合，也能够起到密封的作用。此外，定位槽122沿承口端11的轴向的底部宽度小于定位部22的宽度，梯形的截面形状可以使定位部22更容易进入定位槽122，定位槽122的底部宽度略小，可以使定位部22更难以从定位槽122中滑出，把定位部22挤进定位槽122内，多一次密封的保障。
进一步地，继续参阅图4，密封槽121的横截面形状为矩形；在未压缩状态下，至少部分的密封本体21的横截面形状为半圆形。横截面形状为矩形的密封槽121能够降低密封本体21与密封槽121脱离的可能性，从而保证良好的密封效果。由于定位槽122的最大内径比密封槽121的最大内径大，因此横截面形状为矩形的密封槽121不会对密封圈2的安装产生明显的影响。在插接对象与管体1插接时，密封圈2受到挤压，密封本体21发生形变，横截面形状为半圆形的密封本体21能够与横截面形状为矩形的米粉沟槽耦合，保证密封效果。
在将密封圈2装配于承口端11的内侧时，先将一部分定位部22装配入定位槽122内。然后，在密封圈2周向的一处推动密封圈2，使密封圈2与承口端11偏心，此时，该处的密封圈2与衬板12耦合。再从该处沿密封圈2的周向，逐渐敲击密封圈2，使得密封圈2的其他部分也都与衬板12耦合，直至密封圈2沿周向的各处均与衬板12耦合，密封圈2与承 口端11同轴，完成密封圈2与承口端11的装配。密封圈2的骨架23直径大于衬板12的最小直径，使得骨架23也位于定位槽122内。
进一步地，继续参阅图1至图4，衬板12的内壁面的最小内径与承口端11的内径相等，使得衬板12的内壁面与承口端11的内侧能够形成一个完整的柱面，使得插接对象能够顺利地插入承口端11，避免衬板12对插接对象的插接造成干涉。
图5为本申请实施例的混凝土管的多个管体插接时的一种结构示意图。
进一步地，参阅图5，管体1的数量为至少两个，至少两个管体1依次插接；管体1还包括插口端13，插口端13位于管体1沿第一方向远离承口端11的一端；插接的两个管体1中，其中一个管体1的插口端13插入另一个管体1的承口端11，承口端11的密封圈2的内侧与插口端13的外侧抵接。
当多个管体1依次插接时，管体1的一端为承口端11，另一端为插口端13。插接的两个管体1中，一者的插口端13插入另一者的承口端11，此时密封圈2的密封本体21与插口端13的外壁面抵接，实现两个管体1之间的密封。当两个管体1插接到位时，密封圈2处于压紧的状态，密封本体21对插口端13的外壁面施加压力，实现密封圈2与插口端13的外壁面之间的密封。示例性地，混凝土管的管体1整体可以为弯管也可以为直管。当管体1为弯管时，承口端11和插口端13插接的部分均为直管。
插口端13的外侧设有倒角结构，使得插口端13的外侧不存在明显的棱角。当插口端13与承口端11之间插接到位时，密封圈2会被插口端13和承口端11压紧，因此在将插口端13插入承口端11时，插口端13的外侧边缘会滑过密封本体21的部分表面。倒角结构能够降低插口管外侧边缘划伤密封本体21的表面的风险，并具有导向作用使密封本体21具备良好的密封性能。倒角后插口端13的端面边缘的直径应当小于或等于密封圈2的内径。
进一步地，插口端13设有变径结构，沿从插口端13到承口端11方向，变径结构的外径逐渐增加。因此，插口端13的外侧边缘形成锥形， 方便插口端13插入承口端11，在插口端13和承口端11插合时，能够避免锥形的边缘损伤密封圈2，从而保证良好的密封效果。
进一步地，衬板的材料刚度大于等于钢，可以为结构刚度较大的合金或有机高分子材料。在制作本申请实施例的混凝土管时，衬板预制于承口端11内侧，直接浇筑于承口端11，能够有效地防止衬板和混凝土管间渗漏，并起到防止混凝土管承口端11被插口端13和密封圈2涨裂的风险。
实施例2
图6为本申请实施例的混凝土管的密封圈的一种横截面示意图。
继续参阅图2和图3，并结合图6，本申请实施例提供的密封圈2用于本申请实施例1中的混凝土管。
本申请实施例提供了一种密封圈2，包括：密封本体21，至少部分的密封本体21沿密封圈2的径向向外延伸；定位部22，沿密封圈2的轴向与密封本体21连接，至少部分的定位部22沿密封圈2的径向向外延伸；定位部22的内径小于密封本体21的内径；环形的骨架23，位于定位部22内。
本申请实施例在使用本申请实施例的密封圈2时，将密封圈2安装在混凝土管的管体1的承口端11内侧，再将另一个管体1的插口端13插入，通过密封圈2来实现两个管体1之间的密封。
密封本体21用来实现密封圈2的密封效果，沿密封圈2的径向延伸，能够使得密封圈2能够与管体1的承口端11的密封槽121之间耦合，达到密封的目的。定位部22用来固定密封圈2相对承口端11的位置，沿密封圈2径向延伸，能够降低密封圈2相对承口端11滚动或滑动的可能性，从而增强密封效果。环形的骨架23能够对密封圈2进行支撑，降低定位部22从定位槽122中脱离的可能性，同时在骨架23的向外张力的作用下对定位部22有径向向外的作用力，将定位部22压紧在定位槽122内，进一步增强密封效果。
进一步地，继续参阅图6，密封圈2的内侧设有锥形结构，沿密封圈2的轴向，锥形结构的内径逐渐增加。密封圈2内侧的锥形结构能够起到 对正的作用。当插口端13与承口端11插合时，插口端13会在锥形结构的锥形侧面的导向下，与承口端11插合，此时插口端13的轴线与承口端11的轴线重合，达到对正的目的，减小密封圈2在密封圈2的周向的各个位置受到的作用力差值，从而降低密封圈2因受力不均而失效的可能性。
进一步地，继续参阅图6，沿密封圈2的轴向，从定位部22至密封本体21方向，锥形结构的内径逐渐减小。当插口端13与承口端11插合时，密封圈2受到插口端13和承口端11共同作用产生的力矩，存在滚动的风险。将定位部22设置在锥形结构内径较大的一侧，定位部22与承口端11的定位槽122相互作用，产生阻碍密封圈2转动的力矩，因此，能够降低密封圈2相对承口端11滚动的风险，提高密封效果。
进一步地，密封圈2的定位部22中骨架23的直径大于衬板12的最小直径，刚性的骨架23径向向外的张力，实现定位部22有效固定在密封圈2在定位槽122内，有效的抵御在接插过程中的轴向推力。
进一步地，继续参阅图6，密封本体21的横截面形状包括第一边211、沿密封圈2的径向延伸的第二边212和第三边213，第二边212、第一边211和第三边213依次连接，第一边211为外凸的曲线；密封本体21对应第二边212处和对应第三边213处的直径均小于密封本体21对应第一边211处的直径。第二边212、第一边211和第三边213依次连接，对应密封本体21的横截面形状的一部分。在密封本体21上，第二边212、第一边211和第三边213对应的部分，与承口端11的密封槽121耦合。密封本体21对应第二边212处和对应第三边213处的直径均小于密封本体21对应第一边211处的直径，第二边212和第三边213对应的部分保证密封本体21能够沿密封圈2的径向向外延伸。第一边211为外凸的曲线，示例性地，可以为圆弧或椭圆弧，使得密封本体21在一定的外力作用下，能够与承口端11的密封槽121耦合。虽然第一边211为外凸的曲线，但是在插口端13与承口端11插合后，密封本体21受到挤压变形，第一边211对应的部分能够较为紧密地与密封槽121耦合，保证密封效果。
进一步地，继续参阅图6，定位部22的横截面形状包括第四边221、沿密封权的径向延伸的第五边222和第六边223，第五边222、第四边221 和第六边223依次连接，第四边221为外凸的曲线。第五边222、第四边221和第六边223依次连接，对应定位部22的横截面形状的一部分。在定位部22上，第五边222、和第六边223间的距离大于部分与定位槽122的底部宽度。密封圈2装入承口端11的衬板12后，在骨架23向外的张力作用下，定位部22被挤压在定位槽122内。第四边221为外凸的曲线，示例性地，可以为圆弧或椭圆弧，使得定位部22在骨架23径向向外张力作用下，能够与承口端11的定位槽122贴合，从而进一步增强密封效果。
进一步地，继续参阅图6，骨架23位于定位部22对应第五边222、第四边221和第六边223形成的区域内。在插口端13与承口端11插合后，定位部22与定位槽122耦合，定位部22对应第五边222、第四边221和第六边223形成的区域位于定位槽122内。因此，骨架23位于定位槽122形成的空间内，从而降低定位部22从定位槽122中脱离的可能性，使密封圈2难以相对承口端11滚动或滑动。
进一步地，继续参阅图6，沿密封圈2的轴向，定位部22和密封本体21之间，设有沿密封圈2的径向向内的凹陷部24。密封本体21的横截面形状，还包括第七边241，第三边213、第七边241和第五边222依次连接，第三边213、第七边241和第五边222与凹陷部24的横截面形状对应。凹陷部24能够与承口端11的凸起部耦合，进一步降低密封圈2相对衬板12滑动的可能性。此外，当插口端13与承口端11插合时，凸起部和凹陷部24之间耦合，从而使衬板12能够对密封圈2施加相反方向的力矩，降低密封圈2相对衬板12滚动的可能性，减小因密封圈2脱离密封槽121而引起密封失效的风险。第七边241用于连接第三边213和第五边222，以形成内凹的形状，第三边213、第七边241和第五边222对应凹陷部24。
进一步地，凹陷部24的最小外径小于骨架23的直径，使得骨架23能够位于承口端11的定位槽内122内。当密封圈2出现相对承口端11的移动趋势时，承口端11的凸起部能够通过施加反向的推力来阻挡骨架23，从而阻碍密封圈2相对承口端11移动。
进一步对，密封本体21的横截面形状，还包括第八边214，第六边223、第八边214和第二边212依次连接；第八边214与锥形结构的内侧面对应。第二边212、第一边211、第三边213、第七边241、第五边222、第四边221、第六边223、第八边214，依次首尾连接，形成密封圈2的横截面形状。在插接对象插入承口端11，第八边214会与插接对象之间产生摩擦，而使密封圈2发生变形，从而使密封圈2同时对承口端11和插接对象施加压力，保证良好的密封效果。当插接对象存在从承口端11脱出的趋势时，第八边214与插接对象的反向摩擦力能够使密封圈2产生恢复变形的趋势，从而进一步增加密封圈2对承口端11和插接对象的压力，进而产生更大的摩擦力，实现止退和自锁。
进一步地，继续参阅图6，骨架23对定位部22施加沿密封圈2的径向向外的作用力，由于使骨架23位于定位槽122形成的空间内，骨架23本身的张力能够阻碍定位部22与定位槽122的脱离，从而降低密封圈2相对衬板12滑动或滚动的可能性，进而增强密封效果。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (12)

  1. 一种混凝土管，包括：
    至少一个沿第一方向延伸的管体，所述管体包括承口端和衬板，所述承口端位于所述管体沿第一方向的端部，所述衬板位于所述承口端的内侧，所述衬板包括内壁面，所述内壁面设有密封槽和定位槽；
    至少一个密封圈，所述密封圈位于所述衬板的内侧，至少部分的所述密封圈与所述密封槽耦合，至少部分的所述密封圈与所述定位槽耦合，至少部分的所述密封圈相对所述内壁面凸出。
  2. 根据权利要求1所述的混凝土管，其中，所述密封圈包括密封本体，至少部分的所述密封本体与所述密封槽耦合，所述密封本体的内侧设有锥形结构，所述锥形结构的内径沿远离所述承口端的端部方向逐渐减小。
  3. 根据权利要求2所述的混凝土管，其中，所述密封圈还包括定位部，至少部分的所述定位部与定位槽耦合。
  4. 根据权利要求3所述的混凝土管，其中，所述内壁面还设有凸起部，所述凸起部位于所述密封槽和所述定位槽之间；
    所述密封圈还包括凹陷部，所述凹陷部与所述凸起部耦合。
  5. 根据权利要求3所述的混凝土管，其中，所述密封圈还包括骨架，所述骨架沿所述密封圈的周向设置于所述定位部内，所述骨架位于所述定位槽形成的空间内。
  6. 根据权利要求3所述的混凝土管，其中，所述定位槽的横截面形状为梯形，沿所述管体的轴向，所述定位槽底部的宽度小于所述定位部的宽度。
  7. 根据权利要求2所述的混凝土管，其中，所述密封槽的横截面形状为矩形。
  8. 根据权利要求1所述的混凝土管，其中，所述定位槽位于所述密封槽靠近所述承口端的端部的一侧。
  9. 根据权利要求1所述的混凝土管，其中，所述衬板的内壁面的最小内径与所述承口端的内径相等。
  10. 根据权利要求1所述的混凝土管，其中，所述管体的数量为至少两个，至少两个所述管体依次插接；
    所述管体还包括插口端，所述插口端位于所述管体沿第一方向远离承口端的一端；插接的两个所述管体中，其中一个所述管体的所述插口端插入另一个所述管体的所述承口端，所述承口端的所述密封圈的内侧与插口端的外侧抵接。
  11. 根据权利要求10所述的混凝土管，其中，所述插口端设有变径结构，沿从所述插口端到所述承口端方向，所述变径结构的外径逐渐增加。
  12. 根据权利要求1所述的混凝土管，其中，所述衬板的材料刚度大于等于钢；所述衬板预制于所述承口端内侧。
PCT/CN2023/097705 2022-06-02 2023-06-01 混凝土管 WO2023232101A1 (zh)

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CN115264196A (zh) * 2022-06-02 2022-11-01 郝百顺 混凝土管
CN217899115U (zh) * 2022-06-02 2022-11-25 郝百顺 密封圈

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1054204A2 (fr) * 1999-05-15 2000-11-22 Bonna Sabla Tuyau, notamment en beton, comportant un joint d'étanchéité et procédé de fabrication d'un tel tuyau
DE102011013177A1 (de) * 2011-03-05 2012-09-06 Friedhelm Kempe Anordnung zur Anbindung einer sich über die Länge einer Rohrleitung erstreckenden, im wesentlichen rohrförmigen Innenauskleidung
JP6014710B1 (ja) * 2015-04-16 2016-10-25 櫻護謨株式会社 シール装置
CN207740579U (zh) * 2017-12-11 2018-08-17 北京远通水泥制品有限公司 钢筋混凝土排水管连接结构
CN208311682U (zh) * 2018-03-14 2019-01-01 宁夏青龙管业股份有限公司 一种钢筋混凝土排水管及排水管道
CN208331469U (zh) * 2018-05-24 2019-01-04 北京房修一建筑工程有限公司 无粘结预应力混凝土管
CN113503404A (zh) * 2021-07-19 2021-10-15 山东龙泉管道工程股份有限公司 具有hdpe内衬和双密封接口的钢筋混凝土管道
CN113719669A (zh) * 2021-09-03 2021-11-30 郝百顺 混凝土管及混凝土管的管体模具
CN215568530U (zh) * 2021-09-03 2022-01-18 郝百顺 混凝土管及混凝土管的管体模具
CN115264196A (zh) * 2022-06-02 2022-11-01 郝百顺 混凝土管
CN217899115U (zh) * 2022-06-02 2022-11-25 郝百顺 密封圈

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1054204A2 (fr) * 1999-05-15 2000-11-22 Bonna Sabla Tuyau, notamment en beton, comportant un joint d'étanchéité et procédé de fabrication d'un tel tuyau
DE102011013177A1 (de) * 2011-03-05 2012-09-06 Friedhelm Kempe Anordnung zur Anbindung einer sich über die Länge einer Rohrleitung erstreckenden, im wesentlichen rohrförmigen Innenauskleidung
JP6014710B1 (ja) * 2015-04-16 2016-10-25 櫻護謨株式会社 シール装置
CN207740579U (zh) * 2017-12-11 2018-08-17 北京远通水泥制品有限公司 钢筋混凝土排水管连接结构
CN208311682U (zh) * 2018-03-14 2019-01-01 宁夏青龙管业股份有限公司 一种钢筋混凝土排水管及排水管道
CN208331469U (zh) * 2018-05-24 2019-01-04 北京房修一建筑工程有限公司 无粘结预应力混凝土管
CN113503404A (zh) * 2021-07-19 2021-10-15 山东龙泉管道工程股份有限公司 具有hdpe内衬和双密封接口的钢筋混凝土管道
CN113719669A (zh) * 2021-09-03 2021-11-30 郝百顺 混凝土管及混凝土管的管体模具
CN215568530U (zh) * 2021-09-03 2022-01-18 郝百顺 混凝土管及混凝土管的管体模具
CN115264196A (zh) * 2022-06-02 2022-11-01 郝百顺 混凝土管
CN217899115U (zh) * 2022-06-02 2022-11-25 郝百顺 密封圈

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