CN213576196U

CN213576196U - Pipe orifice sealing structure

Info

Publication number: CN213576196U
Application number: CN202022582851.5U
Authority: CN
Inventors: 胡华刚; 周斌
Original assignee: Wuxi Xinchuangda General Equipment Co ltd
Current assignee: Wuxi Xinchuangda General Equipment Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-06-29
Anticipated expiration: 2030-11-10

Abstract

The utility model relates to the technical field of pipeline, especially, relate to an easy and simple to handle laborsaving, adapt to multiple mouth of pipe terminal surface condition and improve the mouth of pipe seal structure of security. The lower end of the pressure plate is connected with an elastic sealing ring; the screw rod part of the tensioning bolt freely penetrates out of the pressing plate from the sealing ring and is matched with a corresponding tensioning nut; an extrusion block with a narrow upper end and a wide lower end is arranged on the screw rod part and is contacted with the inner side of the sealing ring; a fixing mechanism for improving stability is arranged on the edge of the pressure plate. The utility model discloses the one end of the sealing washer of whole device stretches into the pipeline during use, makes clamp plate and pipeline port contact, then fixes on the pipeline through fixed establishment, and extrusion piece extrusion sealing washer, sealing washer take place deformation to the circumference swell, support tightly with the pipeline inner wall, reach the shutoff effect of end cap, have easy and simple to handle laborsaving, can adapt to the characteristics of different nose end face shapes, because fixed establishment's setting, whole device can not pop out moreover, has improved the security.

Description

Pipe orifice sealing structure

Technical Field

The utility model relates to the technical field of pipeline, especially, relate to an easy and simple to handle laborsaving, adapt to multiple mouth of pipe terminal surface condition and improve the mouth of pipe seal structure of security.

Background

Some mechanical parts with independent pipe orifices have pressure test requirements after being processed, and the pipe orifices need to be plugged during pressure test. The general method is that a pressing plate and a rubber sealing gasket are adopted to be attached to the end face of the pipe orifice, and then a pressure is applied to enable the sealing gasket to be attached to the end face of the pipe orifice, so that the air tightness between the end face and the sealing gasket is ensured; namely the outer plugging method. When the pressure testing pressure is lower, an inner plugging method for plugging the pipe orifice plug of the inner expansion structure is also adopted. For external plugging, the requirement on the end surface of the pipe is high, and the end surface is required to be a plane which is vertical to the axis of the pipe and has no groove. If the pipe orifice of the part is provided with a groove, the end face of the pipe orifice is not perpendicular to the axis of the pipe, the end face of the pipe orifice is not flat and the like, the external plugging method has poor sealing effect or no sealing method. For the internal plugging method, the internal pressure capable of bearing is low, and the plug can fly out instantly under overpressure, so that potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a do simple and convenient laborsaving, adapt to multiple mouth of pipe terminal surface condition and improve the mouth of pipe seal structure of security.

The utility model adopts the technical proposal that: the pipe orifice sealing structure comprises a pressing plate, wherein the lower end of the pressing plate is connected with an elastic sealing ring, the outer side of the sealing ring protrudes outwards, and the inner side of the sealing ring protrudes inwards; the screw part of the tensioning bolt freely penetrates out of the pressure plate from the sealing ring and is matched with a corresponding tensioning nut; the screw rod part is provided with an extrusion block with a narrow upper end and a wide lower end, and the extrusion block is contacted with the inner side of the sealing ring; and a fixing mechanism for improving stability is arranged on the edge of the pressure plate.

For realizing better the utility model discloses, fixed establishment include two drag hooks, the link of this drag hook is connected on the clamp plate, the hook end cooperation has the staple bolt that is used for pressing from both sides tight pipeline.

For better realizing the utility model discloses, two the drag hook be located the both ends of clamp plate respectively, the link of this drag hook passes the clamp plate to the cooperation has the drag hook nut.

For realizing better the utility model discloses, the staple bolt include two arc splint, two the arc splint connect through clamp bolt and clamping nut, hook portion of drag hook clamp bolt lie in the part between two arc splint.

For realizing better the utility model discloses the lower terminal surface of clamp plate be provided with the spacing collar that is close to screw rod portion.

For better realizing the utility model discloses, the lower extreme of extrusion piece be provided with circular arc chamfer.

For realizing better the utility model discloses, the extrusion piece paste tight tie bolt's nut portion, and the cooperation department welded seal of nut portion and extrusion piece.

For better realizing the utility model discloses, the sealing washer adopt rubber or silica gel.

The beneficial effects of the utility model are embodied in: the utility model discloses a mouth of pipe seal structure, through the clamp plate, the sealing washer, tie bolt, tie nut, the cooperation of extrusion piece and fixed establishment etc, the pipeline is stretched into to the one end of the sealing washer of whole device during use, make clamp plate and pipeline port contact, then it is fixed on the pipeline through fixed establishment, the pipeline port contact of keeping clamp plate position and, then rotatory tie nut, extrusion piece extrusion sealing washer, the sealing washer takes place to deform and swells to circumference, support tightly with the pipeline inner wall, reach the shutoff effect of end cap, it is easy and simple to handle laborsaving to have, can adapt to the characteristics of different orifice end face shapes, and because fixed establishment's setting, when the tie nut dismantles is being loosened, whole device can not pop out, the security has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a pipe orifice sealing structure of the present invention;

fig. 2 is a schematic side view of the nozzle sealing structure of the present invention;

fig. 3 is a schematic top view of the nozzle sealing structure of the present invention;

in the attached figure, 1-pipeline, 2-hoop, 3-draw hook, 4-seal ring, 5-tension bolt, 6-extrusion block, 7-seal ring, 8-spacing ring, 9-pressing plate, 10-draw hook nut, 11-tension nut and 12-clamping nut.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Example 1:

as shown in fig. 1 to 3, the pipe orifice sealing structure of the present invention includes a pressing plate 9, a sealing ring 7 with elasticity is connected to the lower end of the pressing plate 9, the outer side of the sealing ring 7 protrudes outwards, and the inner side protrudes inwards; the device also comprises a tension bolt 5, wherein a screw rod part of the tension bolt 5 freely penetrates out of the pressure plate 9 from the sealing ring 7 and is matched with a corresponding tension nut 11; the screw rod part is provided with an extrusion block 6 with a narrow upper end and a wide lower end, and the extrusion block 6 is contacted with the inner side of the sealing ring 7; a fixing mechanism for improving stability is arranged on the edge of the pressure plate 9. The utility model discloses a mouth of pipe seal structure, through clamp plate 9, sealing washer 7, tie bolt 5, tie nut 11, the cooperation of extrusion piece 6 and fixed establishment etc, the one end of the sealing washer 7 of whole device stretches into pipeline 1 during the use, make clamp plate 9 and pipeline port contact, then it is fixed on pipeline 1 through fixed establishment, keep the pipeline port contact of clamp plate 9 position with, then rotatory tie nut 11, extrusion piece 6 extrusion sealing washer 7, sealing washer 7 takes place shape diversion circumference and swells, support tightly with 1 inner wall of pipeline, reach the shutoff effect of end cap, it is laborsaving to have easy and simple to handle, can adapt to the characteristics of different pipe orifice face shapes, and because fixed establishment's setting, when loosening tie nut 11 dismantlements, whole device can not pop out, the security has been improved.

Example 2:

on the basis of above-mentioned embodiment, for further carrying out better the utility model discloses, fixed establishment include two drag hooks 3, the link of this drag hook 3 is connected on clamp plate 9, the hook end cooperation has staple bolt 2 that is used for pressing from both sides tight pipeline 1. During the use, lean on the clamp plate 9 earlier at pipeline 1 tip, then the position and the drag hook 3 adaptation of staple bolt 2 have been adjusted, then fix staple bolt 2, improved the shutoff effect, improved the security performance. Preferably, two of the draw hooks 3 are respectively located at two ends of the pressing plate 9, and the connecting ends of the draw hooks 3 penetrate through the pressing plate 9 and are matched with draw hook nuts 10.

Further, staple bolt 2 include two arc splint, two the arc splint pass through clamping bolt 4 and clamp nut 12 and connect, hook portion of drag hook 3 hook clamping bolt 4 and lie in the part between two arc splint.

Example 3:

on the basis of above-mentioned embodiment, for further carrying out better the utility model discloses clamp plate 9's lower terminal surface be provided with the spacing collar 8 that is close to the screw rod portion, after designing like this, played limiting displacement, avoided extrusion piece 6 to surpass extruded extreme position.

Preferably, the lower end of the extrusion block 6 is provided with a circular arc chamfer, so that the extrusion block 6 can conveniently and smoothly back when the tensioning nut 11 is unscrewed.

Example 4:

on the basis of above-mentioned embodiment, for further carrying out better the utility model discloses, extrusion piece 6 paste tight tie bolt 5's nut portion, and the cooperation department welded seal of nut portion and extrusion piece 6. By the design, gap leakage caused by untight hard contact sealing between the tension bolt 5 and the extrusion block 6 can be prevented.

Example 5:

on the basis of the above embodiment, in order to further implement the utility model discloses better, sealing washer 7 adopt rubber or silica gel.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The pipe orifice sealing structure is characterized in that: the sealing device comprises a pressing plate (9), wherein the lower end of the pressing plate (9) is connected with an elastic sealing ring (7), the outer side of the sealing ring (7) protrudes outwards, and the inner side of the sealing ring protrudes inwards; the device also comprises a tension bolt (5), wherein a screw rod part of the tension bolt (5) freely penetrates out of the pressure plate (9) from the sealing ring (7) and is matched with a corresponding tension nut (11); an extrusion block (6) with a narrow upper end and a wide lower end is arranged on the screw rod part, and the extrusion block (6) is contacted with the inner side of the sealing ring (7); and a fixing mechanism for improving stability is arranged on the edge of the pressure plate (9).

2. The spout sealing structure of claim 1, wherein: the fixing mechanism comprises two drag hooks (3), the connecting ends of the drag hooks (3) are connected to the pressing plate (9), and the hook ends are matched with a hoop (2) used for clamping the pipeline (1).

3. The spout sealing structure of claim 2, wherein: the two draw hooks (3) are respectively positioned at two ends of the pressing plate (9), and the connecting ends of the draw hooks (3) penetrate through the pressing plate (9) and are matched with draw hook nuts (10).

4. The spout sealing structure of claim 3, wherein: staple bolt (2) include two arc splint, two arc splint pass through clamping bolt (4) and clamp nut (12) and connect, the hook portion of drag hook (3) hook clamping bolt (4) and be located the part between two arc splint.

5. The spout sealing structure of claim 1, wherein: and a limiting ring (8) close to the screw rod part is arranged on the lower end surface of the pressing plate (9).

6. The spout sealing structure of claim 1, wherein: the lower end of the extrusion block (6) is provided with an arc chamfer.

7. The spout sealing structure of claim 6, wherein: the extrusion block (6) is tightly attached to the nut part of the tensioning bolt (5), and the matching part of the nut part and the extrusion block (6) is welded and sealed.

8. The spout sealing structure of claim 1, wherein: the sealing ring (7) is made of rubber or silica gel.