CN111911719A

CN111911719A - Self-sealing instrument pipe fitting

Info

Publication number: CN111911719A
Application number: CN202010679126.1A
Authority: CN
Inventors: 董健
Original assignee: Jiangsu Haiwei Group Co ltd
Current assignee: Jiangsu Haiwei Group Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2020-11-10

Abstract

The invention relates to a self-sealing instrument pipe fitting which comprises an outer cylinder, wherein two ends of the outer cylinder are respectively connected with a pipeline, the pipeline is inserted into the outer cylinder, a circle of abutting plates are arranged at the middle position in the outer cylinder, a sealing device is arranged on the inner wall of the outer cylinder, which is in contact with the pipeline, the sealing device comprises a plurality of air bag membranes, a pressurizing device and a rubber sealing strip, the pressurizing device is used for inflating and exhausting the air bag membranes, the air bag membranes are fixed on the inner wall of the outer cylinder, the rubber sealing strip is connected with the outer side surfaces of the air bag membranes, and two adjacent air bag membranes are separated by a partition plate; the outer barrel is characterized in that two ends of the outer barrel are provided with unclosed sealing anti-falling rings, two ends of each sealing anti-falling ring are connected through a convex connecting platform, and each connecting platform is provided with a screw hole and a tightening nut. The double sealing is carried out through the sealing device and the sealing anti-drop ring, the operation is simple, and the sealing effect is good.

Description

Self-sealing instrument pipe fitting

Technical Field

The invention relates to the technical field of instrument pipe fittings, in particular to a self-sealing instrument pipe fitting.

Background

The instrument pipe fitting is used in the connection or the control system of pipeline, be the pipe fitting that is used for the change of pipeline direction, the branch of pipeline or unidimensional union coupling, because the instrument pipe fitting can be connected two or more pipelines, so the instrument pipe fitting need have very high leakproofness, guarantee that the pipeline junction can not produce and reveal, the internal diameter of pipeline junction produces the change, pressure also can produce the change, and the sealing capacity of current instrument pipe fitting is limited, can not change sealed intensity according to pressure size, the instrument pipe fitting is not fastened with being connected of pipeline, the easy disconnection, make its intensity not enough, the leakproofness of instrument pipe fitting and pipeline is relatively poor, reveal easily.

Disclosure of Invention

The invention aims to solve the technical problem of providing a self-sealing instrument pipe fitting to solve the problems in the background technology.

In order to solve the technical problem, the self-sealing instrument pipe fitting comprises an outer cylinder, wherein two ends of the outer cylinder are respectively connected with a pipeline, the pipeline is inserted into the outer cylinder, a circle of abutting plates are arranged at the middle position in the outer cylinder, a sealing device is arranged on the inner wall, in contact with the pipeline, of the outer cylinder, the sealing device comprises a plurality of airbag membranes, a pressurizing device and a rubber sealing strip, the pressurizing device is used for inflating and exhausting the airbag membranes, the airbag membranes are fixed on the inner wall of the outer cylinder, the rubber sealing strip is connected with the outer side surfaces of the airbag membranes, and two adjacent airbag membranes are separated by a partition plate; the outer barrel is characterized in that two ends of the outer barrel are provided with unclosed sealing anti-falling rings, two ends of each sealing anti-falling ring are connected through a convex connecting platform, and each connecting platform is provided with a screw hole and a tightening nut.

Inflate the gasbag membrane through pressure device, through applying the extrusion force to rubber sealing strip after the gasbag membrane inflation to carry out sealed for the first time to the pipeline, then will tighten the nut and screw up, apply inward power, will seal the anticreep ring extrusion closure, thereby sealed anticreep ring pressurized inseparable interlock is at the pipeline outer wall, seals the pipeline once more, and prevents the pipeline slippage. The double sealing is carried out through the sealing device and the sealing anti-drop ring, the operation is simple, and the sealing effect is good.

As an improvement of the invention, the pressurizing device comprises a gas source, a gas inlet pipe, a gas outlet pipe and a controller, wherein the gas inlet pipe and the gas outlet pipe are respectively connected with the airbag membrane, the other end of the gas inlet pipe is connected with the gas source, and the controller is fixed on the outer cylinder and used for controlling gas inlet and gas outlet. The inflation pressure of the air bag film is adjusted through the controller, so that the effect of adjusting the sealing strength is achieved, the self-sealing effect is better, and the operation is convenient.

As a refinement of the invention, the gas source is air.

As an improvement of the invention, a sealing groove is arranged on the inner wall of the sealing anti-falling ring, a sealing ring is arranged in the sealing groove, a sealing gasket is arranged on one side of the sealing ring close to the outer cylinder, and an anti-falling toothed ring is arranged on the other side of the sealing ring. Carry out the anticreep through sealing ring and anticreep ring gear and seal, if the liquid infiltration in the pipeline flows out, get into the seal groove, liquid exerts pressure to sealed the pad, reaches the effect of self sealss.

As an improvement of the invention, the outer side of the anti-falling toothed ring is provided with an anti-falling pad. Enhancing friction with the pipe.

As an improvement of the invention, the air bag membrane is made of elastic material.

Compared with the prior art, the invention has the advantages that 1) the pressurizing device is used for inflating the air bag membrane, the extruding force is applied to the rubber sealing belt after the air bag membrane is expanded, so that the pipeline is sealed for the first time, then the tightening nut is tightened, the inward force is applied, the sealing anti-falling ring is extruded and closed, the sealing anti-falling ring is pressed to be tightly occluded on the outer wall of the pipeline, the pipeline is sealed again, and the pipeline is prevented from slipping. The double sealing is carried out through the sealing device and the sealing anti-drop ring, the operation is simple, and the sealing effect is good; 2) the inflation pressure of the air bag membrane is adjusted through the controller, so that the effect of adjusting the sealing strength is achieved, the self-sealing effect is better, and the operation is convenient; 3) the anti-falling seal is carried out through the seal ring and the anti-falling toothed ring, if liquid in the pipeline permeates and flows out, the liquid enters the seal groove, and the liquid applies pressure to the seal pad, so that the self-sealing effect is achieved; 4) set up the baffle, the gasbag membrane with receive the extrusion of both sides baffle, can expand to rubber sealing strip direction, laminate more with the pipeline outer wall, sealed effect is better.

Drawings

FIG. 1 is a schematic view of a self-sealing instrumentation tube of the present invention;

FIG. 2 is an enlarged view of the sealing device of the present invention;

FIG. 3 is a schematic view showing the structure of the seal anti-drop ring of the present invention;

in the figure: 1. an outer cylinder; 2. a pipeline; 3. a butt joint plate; 4. an air bag membrane; 5. a pressurizing device; 51. a gas source; 52. an air inlet pipe; 53. an air outlet pipe; 54 a controller; 6. a rubber sealing tape; 7. a partition plate; 8. sealing the anti-drop ring; 81. a sealing groove; 82. a seal ring; 83. a gasket; 84. an anti-drop toothed ring; 85. an anti-drop pad; 9. a connecting table; 10. a screw hole; 11. and (5) screwing the nut.

The specific implementation mode is as follows:

for the purpose of enhancing an understanding of the present invention, the present embodiment will be described in detail below with reference to the accompanying drawings.

Example 1: referring to fig. 1 to 3, a self-sealing instrument pipe fitting, an outer cylinder 1, two ends of the outer cylinder 1 are respectively connected with a pipeline 2, the pipeline 2 is inserted into the outer cylinder 1, a circle of abutting plates 3 is arranged at the middle position inside the outer cylinder 1, a sealing device is arranged on the inner wall of the outer cylinder 1, which is in contact with the pipeline 2, the sealing device comprises a plurality of airbag membranes 4, a pressurizing device 5 and a rubber sealing strip 6, the pressurizing device 5 is used for inflating and exhausting the airbag membranes 4, the airbag membranes 4 are fixed on the inner wall of the outer cylinder 1, the rubber sealing strip 6 is connected with the outer side surfaces of the airbag membranes 4, and two adjacent airbag membranes 4 are separated by a partition plate 7; the anti-dropping sealing structure is characterized in that unclosed sealing anti-dropping rings 8 are arranged at two ends of the outer barrel 1, two ends of each sealing anti-dropping ring 8 are connected through a convex connecting platform 9, and a screw hole 10 and a tightening nut 11 are arranged on each connecting platform 9.

The pressurizing device 5 comprises an air source 51, an air inlet pipe 52, an air outlet pipe 53 and a controller 54, wherein the air inlet pipe 52 and the air outlet pipe 53 are respectively connected with the air bag membrane 4, the other end of the air inlet pipe 52 is connected with the air source 51, and the controller 54 is fixed on the outer cylinder 1 and used for controlling air inlet and air outlet. The inflation pressure of the air bag film is adjusted through the controller, so that the effect of adjusting the sealing strength is achieved, the self-sealing effect is better, and the operation is convenient.

The air source 51 is air.

Be equipped with seal groove 81 on the 8 inner walls of sealed anticreep ring, be equipped with sealing ring 82 in the seal groove 81, sealing ring 82 is close to urceolus 1 one side and is equipped with sealed pad 83, sealing ring 82 opposite side is equipped with anticreep ring gear 84. Carry out the anticreep through sealing ring and anticreep ring gear and seal, if the liquid infiltration in the pipeline flows out, get into the seal groove, liquid exerts pressure to sealed the pad, reaches the effect of self sealss.

An anti-falling pad 85 is arranged outside the anti-falling toothed ring 84. Enhancing friction with the pipe.

The air bag membrane 4 is made of elastic material.

The working process is as follows: referring to fig. 1-2, before use, the air bag film is deflated through the controller, so that the air bag film is in a shriveled state, and the rubber sealing belt is not in contact friction with the pipeline and is not abraded. When the device is used, the two sections of pipelines are inserted into the outer barrel until the two sections of pipelines abut against the abutting plate, then the air source is controlled to enter air through the controller, the air bag film is inflated, and the air bag expands towards the direction of the rubber sealing tape due to the fact that the partition plates are arranged on the two sides of the air bag film, and the extrusion force is applied to the rubber sealing tape, so that the pipelines are sealed for the first time. And then the tightening nut is tightened, force in the direction of the pipeline is applied, the sealing anti-drop ring is extruded and closed, and the sealing anti-drop ring is pressed to be tightly occluded on the outer wall of the pipeline, so that the pipeline is sealed again, and the pipeline is prevented from slipping.

Finally, it should be noted that: the technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims

1. A self sealss instrument pipe fitting which characterized in that: the air bag sealing device comprises an outer barrel (1), wherein two ends of the outer barrel (1) are respectively connected with a pipeline (2), the pipeline (2) is inserted into the outer barrel (1), a circle of abutting plates (3) are arranged in the middle of the inside of the outer barrel (1), a sealing device is arranged on the inner wall, contacting with the pipeline (2), of the outer barrel (1), the sealing device comprises a plurality of air bag membranes (4), a pressurizing device (5) and a rubber sealing strip (6), the pressurizing device (5) is used for inflating and exhausting the air bag membranes (4), the air bag membranes (4) are fixed on the inner wall of the outer barrel (1), the rubber (6) is connected with the outer side faces of the air bag membranes (4), and two adjacent air bag membranes (4) are separated by a partition plate (7); the outer barrel is characterized in that two ends of the outer barrel (1) are provided with unclosed sealing anti-falling rings (8), two ends of each sealing anti-falling ring (8) are connected through a convex connecting platform (9), and each connecting platform (9) is provided with a screw hole (10) and a tightening nut (11).

2. The self-sealing instrumentation tubing of claim 1, wherein: the pressurizing device (5) comprises an air source (51), an air inlet pipe (52), an air outlet pipe (53) and a controller (54), wherein the air inlet pipe (52) and the air outlet pipe (53) are respectively connected with the air bag membrane (4), the other end of the air inlet pipe (52) is connected with the air source (51), and the controller (54) is fixed on the outer barrel (1) and used for controlling air inlet and air outlet.

3. The self-sealing instrumentation tubing of claim 2, wherein: the air source (51) is air.

4. The self-sealing instrumentation tubing of claim 1, wherein: be equipped with seal groove (81) on sealed anticreep ring (8) inner wall, be equipped with sealing ring (82) in seal groove (81), sealing ring (82) are close to urceolus (1) one side and are equipped with sealed pad (83), sealing ring (82) opposite side is equipped with anticreep ring gear (84).

5. The self-sealing instrumentation tubing of claim 4, wherein: an anti-falling pad (85) is arranged on the outer side of the anti-falling toothed ring (84).

6. The self-sealing instrumentation tubing of claim 1, wherein: the air bag membrane (4) is made of elastic materials.