Connector and water conveying pipe connecting structure using same

Abstract

The utility model relates to the technical field of water pipe connection, and particularly discloses a connector and a water pipe connecting structure using the connector, the connector is rectangular, an annular limiting groove is formed in the outer side of the connector, and an annular sealing groove is formed in the inner side of the connector. The connector is arranged to be rectangular, and the annular limiting groove is formed in the outer side of the connector, so that the bonding force between cement and the connector is improved, the cement falling risk is reduced, stress is dispersed, and the service life is prolonged. According to the water conveying pipe connecting structure using the connector, during backfilling, the contact area with cement is increased, the annular limiting groove and the poured cement form mechanical engagement, and axial displacement is limited through geometric interlocking. The water conveying pipe connecting structure has good sealing performance, and the flexural rigidity and the torsional property are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pipe connection, in particular to a connector and a water pipe connection structure using the connector. Background Art

[0002] The mainline water pipe connection process typically includes construction preparation, joint preparation, butt-joint installation, cement coating, and maintenance testing. A foundation pit is excavated from the ground, and then two sections of water pipe are installed. The connector is typically a tapered joint, which connects to the first section of the water pipe using a one-piece molding process. A sealing ring is installed in the sealing groove inside the tapered joint. After completion, the second section of the water pipe is aligned with the joint using lifting equipment and then inserted into the tapered joint. Finally, cement or grouting material is added to the appropriate ratio of fibers and poured in sections for backfill protection.

[0003] However, if the conical connector surface is smooth or greasy, it can lead to insufficient cement adhesion, causing it to fall off or crack. Furthermore, the conical connector is a stress concentration point, resulting in low cement tensile strength. Fluctuations in internal pipe pressure or external loads (such as soil pressure or vehicle impact) can cause the cement layer to gradually crack. Utility Model Content

[0004] The purpose of the present invention is to provide a connector and a water pipe connection structure using the connector to solve the problems mentioned in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides a connector, which is rectangular, has an annular limiting groove on the outside of the connector, and an annular sealing groove on the inside of the connector.

[0006] Furthermore, the inner diameter of the outer end of the connector gradually decreases from the outside to the inside.

[0007] Furthermore, two ends of the outer side of the connector form a first ear portion and a second ear portion, the first ear portion and the second ear portion have the same vertical height, and their outer sides are flush.

[0008] Furthermore, the sealing groove is rectangular, and a limiting ring is fixedly connected to the inner wall.

[0009] The utility model also provides a water pipe connection structure using the connector, which includes a connector, a first water pipe, a sealing ring, and a second water pipe. The connector is rectangular, an annular limiting groove is provided on the outside of the connector, and an annular sealing groove is opened on the inside of the connector. The first water pipe is fixedly connected to the inner end of the connector, the sealing ring is installed in the sealing groove, and the second water pipe is socket-connected to the connector and is in close contact with the inner wall of the sealing ring.

[0010] Further, the inner diameter of the outer end of the connector gradually decreases from outside to inside, and the outer diameter of the inner end of the second water pipe gradually increases from outside to inside and is adapted to the inner diameter of the outer end of the connector.

[0011] Further, the sealing groove is rectangular, and a limiting ring is fixedly connected to the inner wall of the sealing groove, and an installation groove is formed on the outer side of the sealing ring and is adapted to the limiting ring.

[0012] The utility model discloses the beneficial effect is: the utility model discloses a rectangular connector, the outer side of the connector is provided with annular limiting slot, improves the cement and the bonding force of the connector, reduces the cement risk of falling off, disperses stress, prolongs the life. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is the structural schematic diagram of the utility model connector example.

[0014] Fig. 2 It is the structural schematic diagram of the utility model water pipe connecting structure example using the connector.

[0015] Among them: 1, connector, 2, limiting ring, 3, first water pipe, 4, sealing ring, 5, second water pipe, 6, installation groove.

[0016] 11, limiting groove, 12, sealing groove, 13, first ear, 14, second ear. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only one embodiment of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0018] In order to make the purpose, technical scheme and advantage of the present application more clear, the present application is further described in detail below in conjunction with the drawings and specific embodiments.

[0019] In the following description, reference has been made to "one embodiment," "an embodiment," "one example," "an example," etc. which means that a particular feature, structure, characteristic, property, element or limitation described in connection with the embodiment or example can be included in at least one embodiment or example of the disclosure. The appearances of the phrase "in one embodiment" or "in an embodiment" in various places in the specification are not necessarily referring to the same embodiment or example.

[0020] As shown in Figs. 1-2 The utility model discloses a connector 1, connector 1 is rectangular, and the outer side of connector 1 is provided with annular limit slot 11, and the inner side of connector 1 is opened with annular sealing groove 12. The contact area is increased by rectangular cross section compared to conical cross section, reduces the stress of unit area, makes stress distribution uniformity promote. The annular limit slot 11 of outer side is used to provide axial limit when installing, prevents the axial movement of pipeline because of internal pressure or external force effect. Even if the external cement falls off from connector 1, the position of cement block can be limited by annular limit slot 11.

[0021] The utility model discloses a connector 1 is set up rectangular, and the outer side of connector 1 is provided with annular limit slot 11, improves the cementation of cement and connector 1, reduces cement falling risk. Disperse stress, avoid stress concentration, prolong the life. Meanwhile, prevent the axial movement of pipeline because of internal pressure or external force effect.

[0022] In one embodiment, the inner diameter of the outer end of the connector 1 gradually decreases from outside to inside, guiding the automatic centering of the pipeline, which helps the correct docking of the pipeline during installation.

[0023] In one embodiment, the two ends of the outer side of the connector 1 form a first ear 13 and a second ear 14, and the vertical heights of the first ear 13 and the second ear 14 are equal and the outer sides are flush. This ensures that the connector 1 is evenly stressed and avoids excessive pressure on one side. At the same time, the flush outer sides may help to seal or form a smoother surface when pouring cement, improving the bonding strength.

[0024] In one embodiment, the sealing groove 12 is rectangular and a limit ring 2 is fixedly connected to the inner wall. This ensures that the sealing ring 4 is installed in the correct position, and at the same time, limits the movement range of the sealing ring 4 to prevent it from being squeezed out under pressure.

[0025] The utility model also discloses a water pipe connecting structure using the connector 1, which comprises a connector 1, a first water pipe 3, a sealing ring 4 and a second water pipe 5. The connector 1 is rectangular, the outer side of the connector 1 is provided with an annular limit slot 11, the inner side of the connector 1 is opened with an annular sealing groove 12, the first water pipe 3 is fixedly connected with the inner end of the connector 1, the sealing ring 4 is installed in the sealing groove 12, and the second water pipe 5 is connected with the connector 1 and tightly contacts with the inner wall of the sealing ring 4.

[0026] The first water pipe 3 and the connecting head 1 are connected by an integrated process, then the sealing ring 4 is installed into the sealing groove 12, the first water pipe 3 and the connecting head 1 are placed into the installation foundation pit by using hoisting equipment, then the second water pipe 5 is inserted into the connecting head 1 by using hoisting equipment, the sealing ring 4 is tightly attached to the outer wall of the second water pipe 5 after being compressed, and fluid leakage is prevented.

[0027] In one embodiment, the inner diameter of the outer end of the connecting head 1 gradually decreases from outside to inside, and the outer diameter of the inner end of the second water pipe 5 gradually increases from outside to inside and is adapted to the inner diameter of the outer end of the connecting head 1.

[0028] In one embodiment, the sealing groove 12 is rectangular, and the inner wall is fixedly connected with a limiting ring 2, the outer side of the sealing ring 4 is provided with an installation groove 6, the installation groove 6 is adapted to the limiting ring 2, in this embodiment, two limiting rings 2 are provided, and the installation groove 6 is provided at both ends of the sealing ring 4, the cooperation of the installation groove 6 and the limiting ring 2 ensures accurate positioning of the sealing ring 4, improves sealing reliability, and the double limiting rings 2 provide redundant fixation to prevent the sealing ring 4 from moving under high pressure.

[0029] The design idea of the utility model is as follows:

[0030] In the water pipe connection, the first water pipe 3 and the connecting head 1 are placed into the installation foundation pit by using hoisting equipment, then the second water pipe 5 is inserted into the connecting head 1 by using hoisting equipment, the sealing ring 4 is tightly attached to the outer wall of the second water pipe 5 after being compressed, and fluid leakage is prevented.

[0031] The connecting head 1 adopts a rectangular cross section instead of a traditional conical design, utilizes the high moment of inertia characteristics of the geometric shape, significantly improves the bending stiffness and torsional performance, and increases the contact area with cement. The annular limiting groove 11 annular groove forms mechanical engagement with the poured cement, and the axial displacement is limited by geometric interlocking. The water pipe connection structure has good sealing performance, improved bending stiffness and torsional performance.

[0032] The utility model discloses a connecting head 1 is set to rectangle, and the connecting head 1 outside sets annular limit slot 11, improves the cement and the bonding force of connecting head 1, reduces cement peeling risk, disperses stress, prolongs the life. The water pipe connecting structure using the connecting head 1 has good sealing property, improves the bending stiffness and the torsional property.

[0033] The above description of disclosed embodiments is to enable or use the utility model by the professional technical personnel in the art. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will be consistent with the widest scope of the principles and novel features disclosed herein.

Claims

1. Connector, characterized by: The connector is rectangular, an annular limiting groove is provided on the outside of the connector, and an annular sealing groove is provided on the inside of the connector.

2. The connector according to claim 1, wherein: The inner diameter of the outer end of the connector gradually decreases from the outside to the inside.

3. The connector according to claim 1, wherein: Two ends of the outer side of the connector form a first ear portion and a second ear portion. The vertical heights of the first ear portion and the second ear portion are equal, and the outer sides thereof are flush.

4. The connector according to claim 1, wherein: The sealing groove is rectangular, and a limiting ring is fixedly connected to the inner wall.

5. A water pipe connection structure comprising the connector according to any one of claims 1 to 4, characterized in that: It also includes a first water pipe, a sealing ring and a second water pipe. The first water pipe is fixedly connected to the inner end of the connector, the sealing ring is installed in the sealing groove, and the second water pipe is socket-connected to the connector and in close contact with the inner wall of the sealing ring.

6. The water pipe connection structure according to claim 5, characterized in that: The connector adopts the structure described in claim 2, and the outer diameter of the inner end of the second water pipe gradually increases from the outside to the inside and is adapted to the inner diameter of the outer end of the connector.

7. The water pipe connection structure according to claim 5, characterized in that: The connector adopts the structure described in claim 4, and a mounting groove is provided on the outer side of the sealing ring, and the mounting groove is adapted to the limiting ring.

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