CN2414278Y

CN2414278Y - Novel air sac for pipeline

Info

Publication number: CN2414278Y
Application number: CN 99255132
Authority: CN
Inventors: 陈宝军
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-30
Filing date: 1999-11-30
Publication date: 2001-01-10
Anticipated expiration: 2009-11-30

Abstract

The utility model relates to a novel air sac for a pipeline. The utility model is composed of the center part of an air sac body, a cambered surface-shaped top, a bottom, an inflating valve, a valve core, and a locking screw, wherein, the inflating valve, the valve core, and the locking screw are arranged on the cambered surface-shaped top. The utility model is characterized in that the center part of the air sac body forms a cylinder shape, and reinforcing bands which are arranged on the center of the air sac body, the bottom, and the cambered surface-shaped top which are integrated with the air sac body as a whole; the center part of the air sac body, the cambered surface-shaped top, the bottom, and the inflating valve on the top are in one-step forming as a whole by sulfur through a die. Through practical identification, the utility model has the advantages of simple structure, good sealing performance for the pipeline, firmness, durability, repeated use, improved efficiency, and extended service life and has the advantage that the phenomena of bottom separation and air leakage because the air sac is pricked by a burr in the pipeline during use are avoided; the service life is extended by more than six times.

Description

The novel pipeline air bag

The utility model belongs to, drainage pipe construction tool, is a kind of novel pipeline air bag.

Giving at present, in the drainage pipe work progress, the a part of pipeline that often needs to finish to constructing tries water flowing, have or not race with inspection, emit, the water clock part, used is inflatable shutoff capsule than light instrument, because existing this class air bag is many returns with giving up that the Motor Vehicle cover tire is bonding to form, because of its top, the bottom with circular arc cylindrical shell two-port and circular arc is simplified must be bonding, and the diameter of arc tube is subjected to the influence of the former radian of cover tire also very lack of standardization, be difficult to corresponding with the pipe diameter that needs shutoff, in use exist gas leak phenomenon and not tight to pipe plugging easily takes place in the abutting edge, influence is to the deficiencies such as detection of pipeline, patent 95225506 pipelines with air bag because of unreasonable structure, in use occur taking off the end and the periphery punctured and gas leak phenomenon by the pipeline burr.

The purpose of this utility model is: kind of a novel pipeline air bag is provided, this rubber pneumatic bag is together with the valve cock at air bag top, with the disposable sulfidization molding of mould, the reinforcing strip that is distributed on the cylinder periphery wall also is beneficial to inflation back capsule tube and pipeline drive fit sealing attaching, avoids taking off the end in the use and being punctured and gas leak phenomenon in the pipe.

The utility model is achieved in that a kind of novel pipeline air bag, form by air sac middle part 1, arc surfaced top 2, bottom 7 and valve cock 3 valve insides 5 and the locking screw 4 that are arranged at arc surfaced top 2, it is characterized in that: its air sac middle part 1 is cylinder type, in the middle of its air sac, the strong band 6 and the air sac of bottom, the setting of cambered surface top bit are one air sac middle part and the valve cock at arched top, the end and top is shaped to an integral body by the disposable sulphur of mould.

Elaborate below in conjunction with embodiment and accompanying drawing:

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model cross gaily decorated basket shape reinforcing strip structural representation;

Fig. 3 is the utility model spirality reinforcing strip structural representation.

Its structure of the utility model: as Figure 1-3: form by air sac middle part 1, arc surfaced top 2, bottom 7 and valve cock 3 valve insides 5 and the locking nut 4 that are arranged at arc surfaced top 2, it is characterized in that: its air sac middle part 1 is cylinder type, in the middle of its air sac, reinforcing strip 6 is set is one with air sac for bottom, cambered surface top bit, the air sac middle part is shaped to an integral body with the valve cock at arched top, the end and top by the disposable sulphur of mould.

Reinforcing strip 6 is a ring 1-5 band in the middle of its air sac.

Its air sac reinforcing strip is a cross gaily decorated basket shape, and 7 spirals rise to arc surfaced top 2 from the bottom.

The novel pipeline that the inventor makes with air bag, its air bag centre reinforcing strip be ring be 1,2,3,4,5 five kind, cross gaily decorated basket shape and spirality etc.Its L ₁Be respectively 136,160,210,220,260,315mm; D is respectively 50,75,100,125,150,200mm and L ₁Coupling is corresponding, is respectively 2 inches, 3 inches, 4 inches, 5 inches, 6 inches, 8 inches pipelines in order to the corresponding pipeline of shutoff by diameter.

The inflatable bladder bag that this pipeline air bag is the neoprene material comprises the disposable sulfidization molding of valve cock employing mould, its height L ₁Middle part drum diameter D is corresponding with the caliber of the corresponding drainage pipeline of institute shutoff, and its corresponding relation is respectively: L ₁The air bag of 136mm, diameter D are that 50mm is applicable to 2 inches pipelines; L ₁For 160m, D are that the air bag of 75mm is applicable to 3 inches pipelines; L ₁For 210mm, D are that the air bag of 100mm is applicable to 4 inches pipelines; L ₁Be 220mm, the air bag of D125mm is applicable to 5 inches pipelines; L ₁Be 260mm; D is that the air bag of 150mm is applicable to that 6 inches pipes produce pipe; L ₁For 300mm, D are that the air bag of 200mm is applicable to 8 inches pipelines.

During use air bag is filled in the water outlet port of pipe under test, then by inflator to airbag aeration, sufficient air bag middle part circular diameter outer rim reinforcing strip and the socket of pipeline inner circle wall drive fit, the shutoff pipe produce pipe wait to try the water detect finish after, bleed off air in the capsule, the taking-up air bag.

Practice confirms that the utility model is simple in structure, and the seal for pipe joints performance is good, take off the end in having avoided using and punctured and gas leak phenomenon by pipeline internal hair thorn, and its sturdy and durable can use repeatedly, thus not high high efficiency and working life are more than 5 times.

Claims

1. novel pipeline air bag, by air sac middle part (1), arc surfaced top (2), bottom (7) be arranged at valve cock (3) valve inside (5) and the locking nut (4) that arc surfaced pushes up (2) and form, it is characterized in that: its air sac middle part (1) is cylinder type, in the middle of its air sac, reinforcing strip (6) is set is one with air sac for bottom, cambered surface top bit, the air sac middle part is shaped to an integral body with the valve cock at arched top, the end and top by the disposable sulphur of mould.

2. the general air bag of novel according to claim 1 pipe is characterized in that: reinforcing strip (6) is 1-5 band in the middle of its air sac, is shaped as ring.

3. as the general air bag of novel pipe as described in the claim 2, it is characterized in that: its air sac reinforcing strip is a cross gaily decorated basket shape, (7) spiral rises to arc surfaced top (2) from the bottom.