Lengthened expansion joint

Abstract

The utility model discloses a lengthened expansion joint which comprises a lengthened expansion joint body, and one end of the lengthened expansion joint body is connected with a locking mechanism. And the bearing bonding section is connected to the other end of the lengthened expansion joint main body. And the length of the lengthened expansion joint main body is more than three times of the length of the connecting bonding section. The utility model has the advantages of novel structure and strong practicability. Leakage caused by adhesion of the pipeline or insufficient sealing length of the rubber ring can be effectively avoided, meanwhile, due to the fact that the sealing end face of the rubber ring is sufficient in length, the pipeline can have enough telescopic space at the position, and pipe collision installation of the vertical pipe on site is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, and more specifically to an extended telescopic joint. Background Art

[0002] When high-rise buildings use the construction technology of pre-buried water-stop joints to install risers, the pipes between the upper and lower floors are connected by expansion joints. Because the length of the upper rubber ring sealing end of traditional expansion joints is limited, when the risers are installed, after the lower part is bonded to the water-stop joint on the floor, either the bonding length of the bottom of the water-stop joint inserted into the roof is insufficient, or the length of the upper rubber ring sealing end is insufficient. Both of these situations will cause pipe leakage. Utility Model Content

[0003] The utility model aims to provide a lengthened telescopic joint, in order to solve the technical problems in the background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An extended expansion joint, comprising:

[0006] An extended telescopic joint body, one end of which is connected to a locking mechanism;

[0007] A connecting bonding section is connected to the other end of the lengthened telescopic joint body.

[0008] The length of the extended telescopic joint body is more than 3 times the length of the connecting bonding section.

[0009] In some embodiments, the locking mechanism includes a pressure ring, a trapezoidal sealing rubber ring and a pipe cap, the inner ring of the end of the extended telescopic joint body has an annular inclined surface, the trapezoidal sealing rubber ring is arranged on the annular inclined surface, the pressure ring is arranged on the trapezoidal sealing rubber ring, and the pressure ring is flush with the end of the extended telescopic joint body; a step is provided near the end of the extended telescopic joint body, a trapezoidal thread is provided from the step to the end of the extended telescopic joint body, and a through hole for the drainage riser to pass through is provided on the pipe cap, and the pipe cap is connected to the extended telescopic joint body through the trapezoidal thread, and is used to seal and lock the drainage riser inserted through the through hole.

[0010] In some embodiments, a plurality of reinforcing ribs are provided on the extended telescopic joint body.

[0011] In some embodiments, the extended telescopic joint body is integrally connected to the receiving adhesive section.

[0012] In some embodiments, a limiting boss is provided between the extended telescopic joint body and the receiving bonding section.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model has novel structure and strong practicality. It can effectively avoid leakage caused by adhesion of pipes or insufficient length of rubber ring seal. At the same time, due to the sufficient length of the rubber ring seal end face, the pipe has enough expansion space at this position, which is convenient for the on-site vertical pipe bumping installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of lengthening the telescopic joint;

[0016] Figure 2 This is a schematic diagram of the use of the extended telescopic joint;

[0017] Illustration: 1- pipe cap, 2- pressure ring, 3- trapezoidal sealing rubber ring, 4- extended expansion joint body, 5- connecting bonding section. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0019] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0020] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0022] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0023] The following will be combined Figure 1-2 , a lengthened telescopic joint involved in the embodiment of the present application is described in detail. It is worth noting that the following embodiments are only used to explain the present application and do not constitute a limitation on the present application.

[0024] Embodiment 1:

[0025] See also Figure 1-2 As shown, an extended telescopic joint comprises: an extended telescopic joint body 4, a receiving bonding section 5, one end of the extended telescopic joint body 4 is connected with a locking mechanism; the receiving bonding section 5 is connected to the other end of the extended telescopic joint body 4, and the extended telescopic joint body 4 and the receiving bonding section 5 are integrally connected. The length of the extended telescopic joint body 4 is more than 3 times the length of the receiving bonding section 5.

[0026] In this embodiment, the length of the extended expansion joint body 4 is set to be more than 3 times the length of the socket bonding section 5. When the socket bonding length with the upper and lower water-stop joints is sufficient, the length of the pipe inserted into the rubber ring sealing end is also sufficient. This can effectively avoid leakage caused by pipe bonding or insufficient rubber ring sealing length. At the same time, due to the sufficient length of the rubber ring sealing end face, the pipe has enough expansion space at this position, which is convenient for the on-site riser to be installed by touching the pipe.

[0027] The locking mechanism includes a pressure ring 2, a trapezoidal sealing rubber ring 3 and a pipe cap 1. The inner ring of the end of the extended telescopic joint body 4 has an annular inclined surface. The trapezoidal sealing rubber ring 3 is arranged on the annular inclined surface. The pressure ring 2 is arranged on the trapezoidal sealing rubber ring 3, and the pressure ring 2 is flush with the end of the extended telescopic joint body 4. The pressure ring 2 effectively ensures that the rotational pressing force of the nut is converted into a pressing force perpendicular to the rubber ring, avoiding the torsional force applied to the sealing rubber ring when the nut is rotated and tightened, causing the rubber ring to be torsionally deformed and damaged, resulting in poor sealing performance. The sealing rubber ring adopts a trapezoidal sealing structure, and the sealing effect is good after being tightened.

[0028] A step is provided near the end of the extended telescopic joint body 4, and a trapezoidal thread is provided from the step to the end of the extended telescopic joint body 4. A through hole for the drainage riser to pass through is provided on the pipe cap 1. The pipe cap 1 is connected to the extended telescopic joint body 4 through the trapezoidal thread, and is used to seal and lock the drainage riser inserted through the through hole.

[0029] The pipe cap 1 and the lengthened telescopic joint body 4 are connected by a trapezoidal thread. The trapezoidal thread is stably formed and has high root strength, which effectively ensures the safe and tight connection between the nut and the lengthened telescopic joint body 4.

[0030] In some embodiments, a plurality of reinforcing ribs are provided on the lengthened telescopic joint body 4, which can improve the structural strength of the lengthened telescopic joint body 4, facilitate tightening the pipe cap 1 and prevent deformation.

[0031] In some embodiments, a limiting boss is provided between the lengthened telescopic joint body 4 and the receiving bonding section 5. The limiting boss can facilitate positioning when connected to the drainage riser at the lower part.

[0032] The above description is only a preferred embodiment of the present invention and is used to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An extended telescopic joint, characterized in that: include: An extended telescopic joint body, one end of which is connected to a locking mechanism; A connecting bonding section, wherein the connecting bonding section is connected to the other end of the lengthened telescopic joint body; The length of the extended telescopic joint body is more than 3 times the length of the connecting bonding section.

2. The lengthened telescopic joint according to claim 1, characterized in that: The locking mechanism includes a pressure ring, a trapezoidal sealing rubber ring and a pipe cap. The inner ring of the end of the extended telescopic joint body has an annular inclined surface. The trapezoidal sealing rubber ring is arranged on the annular inclined surface. The pressure ring is arranged on the trapezoidal sealing rubber ring, and the pressure ring is flush with the end of the extended telescopic joint body. A step is provided near the end of the extended telescopic joint body, and a trapezoidal thread is provided from the step to the end of the extended telescopic joint body. A through hole for the drainage riser to pass through is provided on the pipe cap. The pipe cap is connected to the extended telescopic joint body through the trapezoidal thread, and is used to seal and lock the drainage riser inserted through the through hole.

3. The lengthened telescopic joint according to claim 1, characterized in that: A plurality of reinforcing ribs are arranged on the lengthened telescopic joint body.

4. The lengthened telescopic joint according to claim 1, characterized in that: The lengthened telescopic joint body is integrally connected with the receiving bonding section.

5. The lengthened telescopic joint according to claim 1, characterized in that: A limiting boss is provided between the lengthened telescopic joint body and the receiving bonding section.

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