Pipeline socket sealing structure

Abstract

The utility model discloses a pipeline spigot sealing structure which comprises a spigot and a sealing ring, a plurality of hollow annular convex ribs are arranged on the periphery of the spigot and are sequentially arranged in the axis direction of the spigot, a mounting groove is formed between every two adjacent annular convex ribs, limiting protrusions are arranged on the two opposite sides of the top of each annular convex rib, and the limiting protrusions are arranged on the periphery of the spigot. The limiting protrusions protrude towards the interior of the mounting groove, a sealing protrusion is arranged at the bottom of the mounting groove and extends along the periphery of the inserting opening, the cross section of the sealing protrusion is in an isosceles triangle shape with the vertex facing a groove opening of the mounting groove, limiting grooves matched with the limiting protrusions are formed in the two opposite sides of the sealing ring, and a first groove matched with the sealing protrusion is formed in the inner circumference of the sealing ring. The sealing ring is embedded in the mounting groove, and the limiting protrusion is embedded in the limiting groove. According to the pipeline spigot sealing structure, when the spigot is inserted into the bellmouth, the sealing ring is not prone to disengaging from the mounting groove, and the sealing performance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline sealing structure technical field especially relates to a pipeline socket sealing structure. BACKGROUND

[0002] The existing pipeline socket socket connection structure is as shown in the patent with the application number CN201621360359.0, which comprises a socket, a socket and a sealing ring, the socket is provided with an annular mounting groove, the sealing ring is sleeved on the mounting groove, when the socket is inserted into the socket, the sealing ring ensures the sealing property between the socket and the socket.

[0003] In the process of inserting the socket into the socket, the sealing ring is easy to be taken out of the mounting groove under the friction force, which leads to the failure of connection and affects the construction efficiency. UTILITY MODEL CONTENTS

[0004] The utility model discloses to solve the defect that the sealing ring is easy to be taken out of the mounting groove when the socket is inserted into the socket, and a pipeline socket sealing structure is provided, the sealing ring is not easy to be taken out of the mounting groove when the socket is inserted into the socket, and the sealing property is improved.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A pipeline socket sealing structure, comprising a socket and a sealing ring, the socket is provided with a hollow annular rib along the outer periphery, the annular rib is provided with a plurality of, along the socket axis direction sequentially arranged, the installation groove is formed between the adjacent two annular ribs, the top of the annular rib is provided with a limiting protrusion on the opposite side, the limiting protrusion is raised to the installation groove, the bottom of the installation groove is provided with a sealing protrusion, the sealing protrusion extends along the outer periphery of the socket, the cross section of the sealing protrusion is isosceles triangle, the vertex of which is towards the slot of the installation groove, the sealing ring is provided with a limiting groove on the opposite side, which is matched with the limiting protrusion, the inner periphery of the sealing ring is provided with a first groove matched with the sealing protrusion, the sealing ring is embedded in the installation groove, the limiting protrusion is embedded in the limiting groove, the sealing protrusion is embedded in the first groove, and the outer periphery of the sealing ring protrudes outside the installation groove.

[0007] Through the above setting, first, the limiting protrusion is matched with the limiting groove, and the sealing ring is not easy to be taken out of the installation groove when the socket is inserted into the socket, second, the first groove is convenient for the sealing ring to be clamped into the installation groove, and third, the sealing protrusion and the first groove are arranged, which increases the contact area between the sealing ring and the socket, and improves the sealing effect of the sealing ring.

[0008] Further, the sealing ring is provided with an inclined surface along the outer periphery, the inclined surface is inclined inward towards the insertion direction side, the outer diameter of the inclined surface is d1, the inner diameter of the inclined surface is d2, and the inner diameter of the socket matched with the socket is d3, d1

[0009] Through the above setting, the resistance of the sealing ring entering the socket is reduced, the sealing ring is prevented from being stuck at the end of the socket, and the sealing ring can smoothly enter the socket.

[0010] Further, the angle between the inclined surface and the socket axis is a, and 20°<a<30°.

[0011] Further, the outer periphery of the annular protruding rib is provided with a plurality of second grooves, the plurality of second grooves are uniformly arranged along the outer periphery of the annular protruding rib, the second grooves penetrate through the opposite sides of the annular protruding rib, the cross section of the second groove is a circular arc, the width of the second groove is w1, and 2cm<w1<4cm, the spacing between adjacent two second grooves is w2, and 2<w2 / w1<1.

[0012] Through the above setting, the hand feeling of the annular protruding rib is increased, when the quality inspection personnel on the construction site press the annular protruding rib, the annular protruding rib will not sink, and the confidence of the quality inspection personnel on the product is improved.

[0013] Further, the number of installation grooves is at least five. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The schematic view of the pipe socket sealing structure of the embodiment.

[0015] Figure 2 The schematic view of the socket of the embodiment.

[0016] Figure 3 The side view of the socket of the embodiment.

[0017] Figure 4 The sectional view of the pipe socket sealing structure of the embodiment.

[0018] Figure 5 The enlarged view of A of the embodiment. Figure 4 The enlarged view of A of the embodiment.

[0019] Figure 6 The axial view of the socket of the embodiment.

[0020] Figure 7 The schematic view of the socket after being inserted into the socket of the embodiment. DETAILED DESCRIPTION

[0021] The technical scheme of the present application will be further specifically explained below by means of embodiments and in combination with the drawings.

[0022] As Figures 1 to 7As shown, a pipe socket sealing structure comprises a socket 3 and a sealing ring 4, the socket 3 is provided with hollow annular ribs 5 along the outer periphery, the annular ribs 5 are arranged in sequence along the axis direction of the socket 3, and the installation groove is formed between the adjacent two annular ribs 5, the top of the annular rib 5 is provided with a limiting protrusion 6 on the opposite sides, the limiting protrusion 6 protrudes into the installation groove, the bottom of the installation groove is provided with a sealing protrusion 7, the sealing protrusion 7 extends along the outer periphery of the socket 3, the cross section of the sealing protrusion 7 is an isosceles triangle with the vertex towards the slot of the installation groove, the opposite sides of the sealing ring 4 are provided with limiting grooves 8 matched with the limiting protrusions 6, and the inner periphery of the sealing ring 4 is provided with a first groove 9 matched with the sealing protrusion 7, the sealing ring 4 is embedded in the installation groove, the limiting protrusion 6 is embedded in the limiting groove 8, the sealing protrusion 7 is embedded in the first groove 9, and the outer periphery of the sealing ring 4 protrudes outside the installation groove.

[0023] Through the above arrangement, first, after the limiting protrusion 6 cooperates with the limiting groove 8, the sealing ring 4 is not easy to be taken out of the installation groove when the socket 3 is inserted into the socket; second, the first groove 9 is arranged to facilitate the sealing ring 4 to be clamped into the installation groove; third, the arrangement of the sealing protrusion 7 and the first groove 9 increases the contact area between the sealing ring 4 and the socket 3, and improves the sealing effect of the sealing ring 4.

[0024] The socket 3 of the present application is a circular pipe, and the annular ribs 5 are arranged at equal intervals along the axis direction of the socket 3; the sealing ring 4 is made of rubber and has good elasticity, the cross section of the first groove 9 in the inner periphery of the sealing ring 4 is V-shaped, which facilitates the embedding of the sealing ring 4 into the installation groove, specifically, when the sealing ring 4 is installed into the installation groove, the opposite sides of the sealing ring 4 are extruded by the limiting protrusion 6, the first groove 9 is reduced, and after the inner periphery of the sealing ring 4 is embedded into the installation groove, the vertex of the sealing protrusion 7 is inserted into the first groove 9, the first groove 9 is expanded, the sealing protrusion 7 is fitted with the first groove 9, the limiting protrusion 6 is embedded in the limiting groove 8, and the installation of the sealing ring 4 is completed; the limiting protrusion 6 can prevent the sealing ring 4 from being taken out of the installation groove, the sealing protrusion 7 is triangular, which facilitates the insertion into the first groove 9 and increases the contact area between the sealing ring 4 and the socket 3, so that the sealing effect of the sealing ring 4 is better.

[0025] As an implementation manner, the sealing ring 4 is provided with a bevel 10 along the outer periphery, the bevel 10 is inclined inward towards the insertion direction side, the outer diameter of the bevel 10 is d1, the inner diameter of the bevel 10 is d2, and the inner diameter of the socket matched with the socket 3 is d3, d1 < d3 < d2.

[0026] Through the above arrangement, the resistance of the sealing ring 4 entering the socket is reduced, the sealing ring 4 is prevented from being clamped at the end of the socket, and the sealing ring 4 can smoothly enter the socket.

[0027] When the socket 3 of the application needs to be inserted into the socket 200, the socket 3 is coaxial with the socket, the inclined surface 10 of the sealing ring 4 faces the socket, and the socket 3 moves towards the socket. Because d1 < d3 < d2, the end of the socket extrudes the inclined surface 10, and under the action of the inclined surface 10, the sealing ring 4 will not be stuck at the end of the socket, facilitating the continuous insertion of the socket 3, as shown in Figure 7 In addition, the inner wall of the existing socket is conical, that is, the inner diameter d3 of the socket gradually decreases from the port. In the application, d1 < d3 < d2, which represents that the inner diameter d3 of the socket at different positions satisfies the above relationship, and the inclination angle b of the inner wall of the socket is specifically 3°. Finally, after the socket 3 is inserted into the socket 200, the inner wall of the socket extrudes the sealing ring 4, ensuring the sealing performance.

[0028] As an implementation manner, the angle between the inclined surface 10 and the axis of the socket 3 is a, and 20° < a < 30°.

[0029] As an implementation manner, the outer periphery of the annular protruding rib 5 is provided with a plurality of second grooves 11, the plurality of second grooves 11 are uniformly arranged along the outer periphery of the annular protruding rib 5, the second grooves 11 penetrate through the opposite sides of the annular protruding rib 5, the cross section of the second groove 11 is circular arc-shaped, the width of the second groove 11 is w1, and 2cm < w1 < 4cm. The spacing between the adjacent two second grooves 11 is w2, and 2 < w2 / w1 < 1.

[0030] Through the above setting, the hand feeling of the annular protruding rib 5 is increased, and when the quality inspection personnel on the construction site press the annular protruding rib 5, the annular protruding rib 5 will not sink, thereby improving the confidence of the quality inspection personnel in the product.

[0031] The cross section of the protruding rib on the outer side of the socket 3 of some impeller tubes is basically circular, which can also improve the ring stiffness of the socket 3 of the impeller tube, but when the quality inspection personnel on the site press the protruding rib with their fingers, the protruding rib is easy to sink and deform, giving the feeling that the ring stiffness is too poor. The second groove 11 is arranged on the annular protruding rib 5 of the application, and when the quality inspection personnel press the second groove 11 with their fingers, the second groove 11 itself is a groove structure, and the second groove 11 will not basically sink again after being pressed. When 2 < w2 / w1 < 1, the width of the protruding structure is small and the stiffness is large, and when the quality inspection personnel press the protruding structure with their fingers, the protruding structure will not basically sink. Finally, the quality inspection personnel will not sink no matter where they press the annular protruding rib 5.

[0032] As an implementation manner, the number of mounting grooves is at least five.

[0033] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the utility model.

Claims

1. A pipe socket sealing structure, characterized by, The sealing ring is provided with a slope along the outer periphery, the slope is inclined inward toward the side of the insertion direction, the outer diameter of the slope is d1, the inner diameter of the slope is d2, the inner diameter of the socket matched with the spigot is d3, d1 < d3 < d2.

2. A pipe socket sealing structure according to claim 1, wherein The included angle between the slope and the spigot axis is a, 20° < a < 30°.

3. A pipe socket sealing structure according to claim 2, wherein The outer periphery of the annular rib is provided with a plurality of second grooves, a plurality of the second grooves are uniformly arranged along the outer periphery of the annular rib, the second grooves penetrate through the opposite sides of the annular rib, the cross section of the second groove is a circular arc, the width of the second groove is w1, 2cm < w1 < 4cm, the spacing between adjacent two second grooves is w2, 2 < w2 / w1 < 1.

4. A pipe socket sealing structure according to claim 1, wherein The number of the installation slot is at least five.

5. A pipe socket sealing structure according to claim 1, wherein ​

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