CN213479524U

CN213479524U - Pipeline port plugging device

Info

Publication number: CN213479524U
Application number: CN202121002486.4U
Authority: CN
Inventors: 马建涛; 宫照文
Original assignee: Yantai Jindy Technology Service Co ltd
Current assignee: Gong Zhaowen; Ma Jiantao
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2021-06-18
Anticipated expiration: 2031-05-12

Abstract

The utility model relates to the technical field of pipeline plugging, in particular to a pipeline port plugging device, which comprises a sealing mechanism, a pressing mechanism and a locking mechanism from inside to outside in sequence along the axial direction; the sealing mechanism comprises a cone pull rod and an elastic sealing element; the elastic sealing element is matched with the size of the inner opening of the pipeline port and seals the inner opening; a through hole is formed in the middle of the elastic sealing element and comprises a conical hole and a cylindrical hole; one end of the conical pull rod penetrates through the cylindrical hole and the pressing mechanism in sequence in a moving mode, and the other end of the conical pull rod is in sliding sealing fit with the conical hole; the cross section of the elastic sealing element is T-shaped; the pressing mechanism is fixed outside the pipeline port and used for preventing the elastic sealing element from moving from inside to outside along the axial direction; the locking mechanism is matched with the cone pull rod and used for adjusting pressing force between the cone pull rod and the elastic sealing element. Therefore, the sealing effect is ensured and the leakage accident is avoided by a wedge block structure formed by the cone pull rod and the elastic sealing element; meanwhile, the structure is simple, and the practicability is high.

Description

Pipeline port plugging device

Technical Field

The utility model relates to a pipeline shutoff technical field, in particular to pipeline port plugging device.

Background

The common pipeline in life is cylindrical, and the common pipeline port forms thereof are divided into an internal thread port (the pipeline port is internally provided with internal threads), an external thread port (the pipeline port is provided with external threads), a smooth surface port (the inner wall of the pipeline port is smooth), a flanged port (the end surface of the pipeline port is provided with a flange) and the like. In actual use, the pipeline opening needs to be plugged so as to ensure normal use. In the prior art, after a pipeline port is plugged, the pressure of fluid in the pipeline cannot be adjusted along with the increase of the pressure, so that the plugging piece is easily expanded, and the fluid leakage accident occurs.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome the defect and not enough that exist among the prior art, for this reason the utility model provides a pipeline port plugging device can automatic adjustment in order to adapt to the fluidic pressure in pipeline, and sealing performance is good, and the practicality is strong.

In order to achieve the above object, the utility model provides a pipeline port plugging device, it includes from inside to outside in proper order along the axial: the device comprises a sealing mechanism, a pressing mechanism and a locking mechanism; the sealing mechanism comprises a cone pull rod and an elastic sealing element; the elastic sealing element is matched with the size of an inner opening of the pipeline port and seals the inner opening; a through hole is formed in the middle of the elastic sealing element and comprises a conical hole and a cylindrical hole; one end of the conical pull rod sequentially penetrates through the cylindrical hole and the pressing mechanism in a moving mode, and the other end of the conical pull rod is in sliding sealing fit with the conical hole; the cross section of the elastic sealing element is T-shaped; the pressing mechanism is arranged outside the pipeline port; the pressing mechanism is used for pressing the elastic sealing element to prevent the elastic sealing element from moving from inside to outside along the axial direction; the locking mechanism is matched with the cone pull rod and used for adjusting pressing force between the cone pull rod and the elastic sealing element.

Further, the cone pull rod comprises a cone frustum and a threaded rod which are coaxial.

Further, the locking mechanism is a nut, and the nut is matched with the threaded rod.

Furthermore, the pressing mechanism is a flange plate, and the flange plate is matched with the flange port.

Further, the pressing mechanism is a pipe cap with internal threads, and the pipe cap is in screwed fit with external threads on the external thread port.

Further, the pressing mechanism comprises a holding ring, a metal gasket and a screw; the metal gasket penetrates through the cone pull rod and is in contact with the end face of the elastic sealing element; the clasping ring can be clamped outside the pipeline port and tightly press the metal gasket through the screw.

Furthermore, the clasping ring comprises an upper ring body and a lower ring body, the same ends of the upper ring body and the lower ring body are respectively provided with a clamping jaw, and the inner diameter of the clamping jaw is matched with the outer diameter of the pipeline port; one side of the upper ring body is hinged with one side of the lower ring body, and the other side of the upper ring body is connected with the other side of the lower ring body through a bolt; the locking plate is arranged at one end, far away from the clamping jaw, of the upper ring body and the lower ring body respectively, and threaded holes matched with the screws are formed in the locking plate.

Further, still be provided with the rubber gasket on the jack catch, the rubber gasket be used for increasing with the frictional resistance of pipeline port outer wall.

Further, the metal gasket is a standard straw hat mat.

Further, the metal gasket is a standard flat gasket, and the number of the flat gaskets is at least 1.

Compared with the prior art, the beneficial effects of the utility model are that: the sealing effect is good, the sealing device can be adjusted along with the increase of the pressure in the pipeline, the leakage accident of the pipeline port is avoided, the whole structure is simple, and the sealing device is economical and applicable.

Drawings

Fig. 1 is a schematic structural view of the utility model applied to a smooth surface port.

Fig. 2 is a schematic structural view of the present invention applied to a flanged port.

Fig. 3 is a schematic structural view of the present invention applied to the internal thread port.

Fig. 4 is the utility model discloses be applied to the structural schematic diagram of external screw thread port.

Fig. 5 is another schematic structural diagram of the present invention applied to an internal thread port.

Fig. 6 is a front view of the clasp of the present invention.

Figure 7 is the utility model discloses a hug closely and encircle cut open diagram for internal thread port.

Fig. 8 is a cross-sectional view of the tightening ring for the smooth surface port of the present invention.

Fig. 9 is a working state diagram of the present invention.

Wherein: the sealing device comprises a taper pull rod 1, an elastic sealing element 2, a pipeline port 3, a pressing mechanism 4, a locking mechanism 5, a cone frustum 11, a threaded rod 12, a tapered hole 21, a cylindrical hole 22, a clasping ring 41, a screw 42, a metal gasket 43, an upper ring body 411, a lower ring body 412, a claw 413, a 414 locking plate 413-1 rubber gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1, 6 and 8, the present invention provides a pipe port plugging device for smooth ports. The axial sealing device sequentially comprises a sealing mechanism, a pressing mechanism 4 and a locking mechanism 5 from inside to outside along the axial direction; the sealing mechanism comprises a cone pull rod 1 and an elastic sealing element 2; the elastic sealing element 2 is matched with the inner opening of the pipeline port 3 in size and seals; a through hole is formed in the middle of the elastic sealing element 2, and comprises a conical hole 21 and a cylindrical hole 22; one end of the conical pull rod 1 sequentially passes through the cylindrical hole 22 and the pressing mechanism 4 in a moving mode, the other end of the conical pull rod is in sliding sealing fit with the conical hole 21, and the effect of the sliding sealing fit is the same as that of a wedge block structure; the cross section of the elastic sealing element 2 is T-shaped; the pressing mechanism 4 is arranged outside the pipeline port 3; the pressing mechanism 4 is used for pressing the elastic sealing element 2 to prevent the elastic sealing element 2 from moving from inside to outside along the axial direction; the locking mechanism 5 is matched with the conical pull rod 1 and used for adjusting the pressing force between the conical pull rod 1 and the elastic sealing element 2. The larger the gap between the cylindrical hole 22 and the conical pull rod 1 is, the higher the pressure born by the sealing mechanism is, so that the leakage accident is avoided.

As an embodiment of the present invention, the cone pull rod 1 includes a coaxial truncated cone 11 and a threaded rod 12.

Preferably, the locking mechanism 5 is a nut that mates with the threaded rod 12.

As an embodiment of the present invention, the pressing mechanism 4 includes a clasping ring 41, a metal gasket 43 and a screw 42; the metal gasket 43 passes through the cone pull rod 1 and contacts with the end face of the elastic sealing element 2; the clasping ring 41 can be clamped on the outside of the pipe port 3 and pressed against the metal gasket 43 by means of the screw 42.

Preferably, the clasping ring 41 comprises an upper ring body 411 and a lower ring body 412, the same ends of the upper ring body 411 and the lower ring body 412 are respectively provided with a claw 413, and the inner diameter of the claw 413 is matched with the outer diameter of the pipeline port 3; one sides of the upper ring body 411 and the lower ring body 412 are hinged, and the other sides are connected through bolts; the upper ring body 411 and the lower ring body 412 are respectively provided with a locking plate 414 at one end far away from the clamping jaw 413, and the locking plate 414 is provided with a threaded hole matched with the screw 42. When the clasping ring 41 is used, the locking plate 414 has a moving tendency away from the pipeline port 3 by tightening the screw 42, so that the acting force of the clamping jaw 413 on the outer wall of the pipeline port 3 is increased, the clamping jaw 413 is better clamped on the outer wall of the pipeline port 3, and meanwhile, the screw 42 is subjected to the reaction force of the locking plate 414, so that the screw 42 can press the metal gasket 43, and the metal gasket 43 presses the elastic sealing element 2.

Preferably, the claw 413 is further provided with a rubber gasket 413-1, and the rubber gasket 413-1 is used for increasing the frictional resistance with the outer wall of the pipeline port 3.

Preferably, the metal shim 43 is a standard grass cap mat.

Example 2

Referring to fig. 2, the present invention provides a pipe port plugging device for a flanged port. The difference from the embodiment 1 is that the pressing mechanism 4 is different, and the pressing mechanism 4 of the embodiment 2 is a flange plate which is connected with a flange on a flange port in a matching way.

Example 3

Referring to fig. 3, 5 to 7, the present invention provides a pipe port plugging device for an internal thread port. It is different from embodiment 1 in that a rubber gasket 413-1 is not used, and a protrusion provided on the internal threaded port is hooked by the claw 413. Obviously, the elastic sealing element 2 is provided with external threads which are matched and sealed with the internal thread ports.

As an embodiment of the utility model, can replace standard straw hat pad through standard flat pad, the quantity of flat pad is 1 at least. It is worth to say that the effect of using the straw hat mat is better than using the flat mat; this flat pad can also be used in example 1.

Example 4

Referring to fig. 4, the present invention provides a pipe port plugging device for an external thread port. Unlike the embodiment in which the pressing mechanism 4 is different, the pressing mechanism 4 of the embodiment 4 is a pipe cap with an internal thread, which is screwed to the external thread port, and the pipe cap can also press the elastic sealing member 2.

The working principle of the utility model is as shown in fig. 9, can promote the certain distance k of cone pull rod 1 removal when the fluid pressure in pipeline port 3 increases, because truncated cone 11 constitutes the voussoir structure with bell mouth 21, elastic sealing element 2 is unmovable under hold-down mechanism 4's effect, consequently, elastic sealing element 2 receives the extrusion force that comes from truncated cone 11 and produces radial elastic shrinkage and to pipeline port 3 inner wall production pressure, play sealed effect, thereby elastic sealing element 2 is bloated out of work when having avoided pressure increase.

The utility model discloses the nut can keep lax state in the use. The nut here may alternatively use a standard wing nut.

The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. Therefore, the above-described embodiments of the present invention should be considered only as illustrative and not restrictive in any way, the scope of the present invention being indicated by the claims, and any changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A pipeline port plugging device is characterized by comprising a sealing mechanism, a pressing mechanism (4) and a locking mechanism (5) from inside to outside in sequence along the axial direction; the sealing mechanism comprises a cone pull rod (1) and an elastic sealing element (2); the elastic sealing element (2) is matched with the size of an inner opening of the pipeline port (3) and seals the inner opening; a through hole is formed in the middle of the elastic sealing element (2), and the through hole comprises a conical hole (21) and a cylindrical hole (22); one end of the cone pull rod (1) sequentially passes through the cylindrical hole (22) and the pressing mechanism (4) in a moving mode, and the other end of the cone pull rod is in sliding sealing fit with the cone hole (21); the cross section of the elastic sealing element (2) is T-shaped; the pressing mechanism (4) is arranged outside the pipeline port (3); the pressing mechanism (4) is used for pressing the elastic sealing element (2) to prevent the elastic sealing element (2) from moving from inside to outside along the axial direction; the locking mechanism (5) is matched with the cone pull rod (1) and used for adjusting pressing force between the cone pull rod (1) and the elastic sealing element (2).

2. The pipe port plugging device according to claim 1, wherein said cone pull rod (1) comprises a coaxial truncated cone (11) and a threaded rod (12).

3. The pipe port blocking device of claim 2, wherein the locking mechanism (5) is a nut that mates with the threaded rod (12).

4. The pipe port plugging device according to any one of claims 1 to 3, wherein said pressing means (4) is a flange plate, said flange plate being adapted to fit the flange port.

5. The pipe port plugging device according to any one of claims 1 to 3, wherein said pressing means (4) is a cap with an internal thread, said cap being screwed to an external thread on the externally threaded port.

6. The pipe port blocking device according to any one of claims 1 to 3, wherein the compression mechanism (4) comprises a clamp ring (41), a metal gasket (43) and a screw (42); the metal gasket (43) penetrates through the cone pull rod (1) and is in contact with the end face of the elastic sealing element (2); the clasping ring (41) can be clamped outside the pipeline port (3) and tightly press the metal gasket (43) through the screw (42).

7. The pipe port plugging device according to claim 6, wherein said clasping ring (41) comprises an upper ring body (411) and a lower ring body (412), the same end of said upper ring body (411) and the same end of said lower ring body (412) are respectively provided with a claw (413), the inner diameter of said claw (413) is matched with the outer diameter of said pipe port (3); one side of the upper ring body (411) is hinged with one side of the lower ring body (412), and the other side of the upper ring body is connected with the other side of the lower ring body through a bolt; the locking plate (414) is arranged at one end, far away from the clamping jaw (413), of the upper ring body (411) and the lower ring body (412), and threaded holes matched with the screws (42) are formed in the locking plate (414).

8. The pipe port blocking device according to claim 7, wherein a rubber gasket (413-1) is further disposed on the claw (413), and the rubber gasket (413-1) is used for increasing frictional resistance with an outer wall of the pipe port (3).

9. The pipe port plugging device according to claim 6, wherein said metal gasket (43) is a standard grass cap mat.

10. The pipe port plugging device according to claim 6, wherein said metal gasket (43) is a standard flat gasket, said number of flat gaskets being at least 1.