CN208651949U

CN208651949U - Seal for pipe joints ring

Info

Publication number: CN208651949U
Application number: CN201821225823.4U
Authority: CN
Inventors: 李娇; 熊涛
Original assignee: Guangdong Crown Pipeline Repair Technology Co Ltd
Current assignee: Guangdong Crown Pipeline Repair Technology Co Ltd
Priority date: 2018-08-01
Filing date: 2018-08-01
Publication date: 2019-03-26
Anticipated expiration: 2028-08-01

Abstract

The utility model discloses a kind of seal for pipe joints rings comprising sealing ring, expansion loop, the expansion loop are located inside the sealing ring；When the expansion loop is in softened state, the expansion loop is fitted closely with the sealing ring, and the expansion loop is equipped with anti-recovery structure.Compared with prior art, the utility model has the advantages that structure simple, construction efficiency, construction cost are low etc..

Description

Seal for pipe joints ring

Technical field

The utility model relates to underground pipe network recovery technique field more particularly to a kind of seal for pipe joints rings.

Background technique

In pipeline engineering construction, different connection methods should be selected according to the material of pipe used.Common steel tube has spiral shell Line connection, welding are connected with ring flange；Seamless steel pipe, non-ferrous metal and stainless steel tube are mostly welding and flanged joint；Cast iron pipe Socket joint is mostly used to connect, minority uses flanged joint；Plastic tube mostly uses threaded connection, bonding and hot-melt adhesive paste etc., other are non- There are many forms again for metal tube connection.

The renovation technique of pipe leakage is complicated in the prior art, and remediation efficiency is low, destructible and rehabilitation cost height after reparation.

Utility model content

The utility model is proposed in view of the above problem of the existing technology, and the utility model provides a kind of structure letter Seal for pipe joints ring single, remediation efficiency is high.

The utility model is achieved through the following technical solutions: a kind of seal for pipe joints ring comprising sealing ring, expansion Ring, the expansion loop are located inside the sealing ring；When the expansion loop is in softened state, the expansion loop and the sealing Circle fits closely, and the expansion loop is equipped with anti-recovery structure.

Further, there are two the expansion loop is set, and the sealing ring two sides are separately positioned on.

Preferably, distending support construction is equipped in the expansion loop.

Further, the distending support construction is one group of supporting block, and the supporting block is set about anti-recovery symmetrical configuration It sets on expansion loop.

Preferably, stiffening ring is equipped between the supporting block and the expansion loop.

Further, the expansion loop is split ring.

Preferably, the anti-structure of restoring is flexible clamping support plate, and the clamping support plate is fixed on the expansion Ring both ends.

Further, the clamping support plate is equipped with self-locking structure.

Preferably, the anti-recovery structure includes anti-fall off block, anti-recovery support plate, and the anti-recovery support plate is located at institute Expansion loop opening is stated, the anti-fall off block is located at the expansion loop both ends, and the anti-recovery support plate is located at the sealing ring Between the anti-fall off block.

Further, the anti-recovery support plate is arc panel.

Compared with prior art, the utility model be equipped with expansion loop, telescopic expansion loop be conducive to expansion loop be put into it is close In seal, while telescopic expansion loop can effectively strut sealing ring, expansion loop strut after be equipped with self-locking structure or Reinstatement structure is prevented, is fitted closely at sealing ring and the leakage of original pipeline to realize, and then effectively repair original The leakage of pipeline.Therefore, the utility model is with structure is simple, remediation efficiency is high, rehabilitation cost is low.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is A-A directional profile figure in Fig. 1；

Fig. 3 is the enlarged structure schematic diagram of I in Fig. 1；

Fig. 4 is a kind of embodiment enlarged structure schematic diagram of II in Fig. 1；

Fig. 5 is the another embodiment enlarged structure schematic diagram of II in Fig. 1；

Fig. 6 is that the utility model is mounted on pipeline configuration schematic diagram to be repaired.

Specific embodiment

In order to better understand and implement, according to the present invention will be described in detail below with reference to the accompanying drawings.

As shown in figure 1, figure 2, figure 3 and figure 6, a kind of seal for pipe joints ring it include sealing ring 1, expansion loop 2, the expansion loop 2 Inside the sealing ring 1；When the expansion loop 2 is in softened state, the expansion loop 2 is closely pasted with the sealing ring 1 It closes, the expansion loop is equipped with anti-recovery structure.Equipped with anti-recovery structure, bounce back after being effectively prevented expansion loop distending, Jin Erying The sealing effect in speaking pipe road.

It should be noted that the sealing ring 1 is mounted in the pipeline 7 in the presence of leakage (as shown in Figure 5), when described close When seal 1 is inflated ring 2 and struts, sealing ring 1 is fitted closely with the pipeline 7 realization, so that realizing will block up at the leakage of pipeline 7 It extremely prevents from leaking, and then realizes the sealing of pipeline.

In order to realize better seal, the expansion loop 2 sets there are two and is separately positioned on the sealing ring two sides, also It is to say, two expansion loops are located at the two sides at the leakage of pipeline 7, thus the effectively excellent sealing of pipeline.In addition, expansion The number of ring 2 is not particularly limited, can also using expansion loop (as it is smaller at leakage when, had using a sealing ring The advantages that construction efficiency is high, at low cost), multiple expansion loops can also be used.

Embodiment one

Distending support construction is equipped in the expansion loop, the distending support construction is one group of supporting block 3, the supporting block 3 are arranged on expansion loop 2 about anti-recovery symmetrical configuration.Equipped with distending support construction, expansion loop is effectively prevented by cross It is slided when oil cylinder struts, effectively improves construction quality and construction efficiency, reduce construction cost.

Expansion loop is equipped with stiffening ring 6 because supporting external force to be damaged in order to prevent between the supporting block 3 and the expansion loop 2, The active force of the cross oil cylinder will act on stiffening ring and supporting block, effectively extend the service life of expansion loop.

Embodiment two

With embodiment one the difference is that: the expansion loop be split ring, it is described it is anti-restore structure be stretch clamping Support plate 8, the clamping support plate are fixed on the expansion loop both ends, and the clamping support plate is equipped with self-locking structure (in figure not It shows).It should be noted that the clamping support plate is directly welded on the expansion loop, one is formed with the expansion loop A entirety.

The stretch mode for being wherein clamped support plate is not particularly limited, and can be stretched (such as umbrella structure using concentric shafts Mode).

Such as Fig. 5, when expansion loop is in non-distending state, the clamping support plate is in contraction state；When expansion loop is by ten When the distendings such as word oil cylinder, the self-locking structure progress being clamped in support plate is self-locking, to prevent clamping support plate from bouncing back, in turn Realization sealing ring is fitted closely with original pipeline.

Embodiment three

With embodiment one or two the difference is that: the anti-recovery structure includes anti-fall off block 5, anti-recovery support plate 4, the anti-recovery support plate is located at the expansion loop opening, and the anti-fall off block is located at the expansion loop both ends, described anti- Restore support plate between the sealing ring and the anti-fall off block.

In order to realize expansion loop preferably distending sealing ring, the anti-recovery support plate is arc panel.

Such as Fig. 4, when processing, anti-fall off block is directly welded on to the both ends of expansion loop opening.When installation, when cross oil cylinder is complete When expansion loop being strutted entirely, anti-recovery support plate is put into expansion loop opening, due to the fast presence of anti-dropout, the anti-recovery Support plate will be securely seated between expansion loop opening, so that being effectively prevented expansion loop is restored to free state.

The utility model is not limited to above embodiment, if the various changes or deformation to the utility model do not take off Spirit and scope from the utility model, if these changes and deformation belong to the claims and equivalents of the utility model Within the scope of, then the utility model is also intended to encompass these changes and deformation.

Claims

1. seal for pipe joints ring, it is characterised in that: it includes sealing ring, expansion loop, and the expansion loop is located inside the sealing ring； When the expansion loop is in softened state, the expansion loop is fitted closely with the sealing ring, and the expansion loop is equipped with anti-recovery Structure.

2. seal for pipe joints ring according to claim 1, it is characterised in that: there are two the expansion loop is set, and be separately positioned on The sealing ring two sides.

3. seal for pipe joints ring according to claim 1 or claim 2, it is characterised in that: be equipped with distending support construction in the expansion loop.

4. seal for pipe joints ring according to claim 3, it is characterised in that: the distending support construction is one group of supporting block, institute Supporting block is stated to be arranged on expansion loop about anti-recovery symmetrical configuration.

5. seal for pipe joints ring according to claim 4, it is characterised in that: be equipped with and add between the supporting block and the expansion loop Strong circle.

6. seal for pipe joints ring according to claim 1, it is characterised in that: the expansion loop is split ring.

7. seal for pipe joints ring according to claim 6, it is characterised in that: the anti-structure of restoring is flexible clamping support Plate, the clamping support plate are fixed on the expansion loop both ends.

8. seal for pipe joints ring according to claim 7, it is characterised in that: the clamping support plate is equipped with self-locking structure.

9. seal for pipe joints ring according to claim 6, it is characterised in that: the anti-recovery structure include anti-fall off block, prevent it is extensive Multiple support plate, the anti-recovery support plate are located at the expansion loop opening, and the anti-fall off block is located at the expansion loop both ends, The anti-recovery support plate is between the sealing ring and the anti-fall off block.

10. seal for pipe joints ring according to claim 9, it is characterised in that: the anti-recovery support plate is arc panel.