CN215596721U - Plugging device - Google Patents

Abstract

The application provides a plugging device includes: the sealing device comprises a fixed shell, a screwed plug, two first sealing elements, two fixing devices and two locking devices. The stationary case includes a plurality of outer cases, and the stationary case has a water discharge hole. The drain hole is sealed by a plug. The first sealing members are respectively arranged on the inner walls of the first through holes. The fixture includes a plurality of glands. The locking device includes a plurality of snap covers. The application provides a plugging device need not be with the pipeline stop work of leaking, only needs to fix the set casing on the pipeline to aim at the wash port and let out the leakage hole, then with the plug in drain hole department, just can accomplish the pipeline shutoff to leaking, leaking stoppage simple process, easy operation. Through the setting of locking device, fixing device and first sealing member, on the one hand, can make the set casing fix more firmly on the pipeline of leaking, on the other hand has guaranteed the leakproofness between set casing and the pipeline of leaking to the abundant leaking stoppage of plugging device to the pipeline has been guaranteed.

Description

Plugging device

Technical Field

The application relates to the technical field of machinery, in particular to a leakage blocking device.

Background

Pipelines become an important part of urban infrastructure construction, pipeline transportation has extremely high efficiency and convenience, and the pipelines mainly comprise heating pipelines, oil pipelines, gas pipelines, water pipelines and the like. With the mass of pipeline laying, pipeline failures also occur occasionally, and in order to reduce adverse effects on the use of rear-end users, it is often necessary to perform pressurized plugging operations on running pipelines. The existing plugging technology has the common problems that the plugging has high requirements on operators and long plugging time, and is not beneficial to the quick control of leakage accidents.

SUMMERY OF THE UTILITY MODEL

The application aims to provide the plugging device which is simple in process, wide in application range and good in sealing effect.

To achieve at least one of the above objects, the present application provides a plugging device for a pipeline, comprising: the fixed shell comprises a plurality of outer shells, the fixed shell is provided with a drain hole, and the plurality of outer shells surround a first through hole for accommodating a pipeline; the pipe plug seals the drain hole; the two first sealing pieces are arranged on the inner wall of the first through hole and arranged along the circumferential direction of the first through hole, and are respectively arranged at two ends of the fixed shell and used for sealing a gap between a pipeline and the fixed shell; the two fixing devices are respectively arranged at two ends of the fixing shell and comprise a plurality of pressing covers, the pressing covers surround second through holes for accommodating pipelines, each pressing cover comprises a pressing part and a connecting part, the connecting parts are connected with the fixing shell, and the pressing parts are pressed on the first sealing parts; and the two locking devices are respectively fixed on the two fixing devices, the locking devices comprise a plurality of clamping covers which enclose a third through hole for accommodating a pipeline, the clamping covers comprise an inserting section and a connecting section, the connecting section is connected with the fixing devices, and the inserting section is inserted into the second through hole.

In some embodiments, the gland is provided with an inclined surface, and the plug section is provided with a matching surface matched with the inclined surface.

In some embodiments, a sealing groove is formed in one of the two adjacent outer shells, a second sealing element is arranged in the sealing groove, and the other outer shell is pressed against the second sealing element.

In some embodiments, the sealing groove includes a first groove and two second grooves communicating with the first groove, the two second grooves are located on the same side of the first groove, the first groove is disposed along an axial direction of the first through hole, and the second groove is disposed along a radial direction of the first through hole.

In some of these embodiments, the first seal is an oil-impregnated asbestos packing and the second seal is a rubber sealing rope.

In some embodiments, two retaining ring segments are arranged on the hole wall of the first through hole at intervals.

In some of these embodiments, the glands are connected to two adjacent housings, respectively; and/or the clamping covers are respectively connected with two adjacent pressing covers.

In some of these embodiments, the stationary housing comprises two of the outer shells, the stationary device comprises two of the press covers, and the locking device comprises two of the snap covers.

In some of these embodiments, the plug is threadably engaged with the stationary housing.

In some of these embodiments, the connecting portion is a connecting flange; and/or the connecting section is a connecting flange.

The above technical scheme of this application has following advantage:

1. the leaking pipeline can be plugged only by fixing the fixing shell on the pipeline without stopping the leaking pipeline, aligning the drain hole with the leaking hole and plugging the plug at the drain hole, and the plugging process is simple and easy to operate.

2. The fixed shell of diameter through the design difference can carry out the shutoff to the pipeline of equidimension not to the application range of product has been increased, and then has increased market competition.

3. During the pipeline shutoff of leaking, neither relate to pipeline cutting equipment, also do not relate to electric welding equipment, the pipeline shutoff work that just can get into the leakage in the very fast time, can reduce a large amount of manpower, material resources and time, make the pipeline of leaking very fast can normal use.

4. Through the setting of locking device, fixing device and first sealing member, on the one hand, can make the set casing fix more firmly on the pipeline of leaking, on the other hand has guaranteed the leakproofness between set casing and the pipeline of leaking to the abundant leaking stoppage of plugging device to the pipeline has been guaranteed.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration only and are not necessarily drawn to scale or quantity with respect to the actual product. Wherein:

FIG. 1 is a schematic view of the construction of a lost circulation device according to the present application;

FIG. 2 is a schematic cross-sectional view of the plugging device of FIG. 1 engaged with a pipeline;

FIG. 3 is a schematic structural view of the housing of the present application;

FIG. 4 is a schematic view of the gland of the present application;

fig. 5 is a schematic structural view of the clamping cover according to the present application.

Wherein, the correspondence between the reference numbers and the part names of fig. 1 to 5 is:

the sealing device comprises a fixed shell 10, an outer shell 11, a sealing groove 12, a baffle ring section 13, a plug 20, a first sealing element 30, a fixing device 40, a pressing cover 41, a pressing part 411, a connecting part 412, an inclined surface 413, a locking device 50, a clamping cover 51, an inserting section 511, a connecting section 512, a matching surface 513, a second sealing element 60 and a pipeline 70.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The following discussion provides a number of embodiments of the application. While each embodiment represents a single combination of applications, the various embodiments of the disclosure may be substituted or combined in any combination, and thus, the disclosure is intended to include all possible combinations of the same and/or different embodiments of what is described. Thus, if one embodiment comprises A, B, C and another embodiment comprises a combination of B and D, then this application should also be considered to comprise an embodiment that comprises A, B, C, D in all other possible combinations, although this embodiment may not be explicitly recited in the text below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

As shown in fig. 1 and 2, the present application provides a plugging device for a pipeline 70, including: the fixing device comprises a fixing shell 10, a plug 20, two first sealing elements 30, two fixing devices 40 and two locking devices 50.

The stationary case 10 includes a plurality of outer cases 11, the stationary case 10 has a water discharge hole, and the plurality of outer cases 11 enclose a first through hole for receiving the duct 70. In one embodiment of the present application, two retaining ring segments 13 are disposed on the hole wall of the first through hole at an interval.

The plug 20 seals the drain hole.

The first sealing members 30 are disposed on an inner wall of the first through hole and disposed along a circumferential direction of the first through hole, and the two first sealing members 30 are respectively disposed at both ends of the stationary case 10 for sealing a gap between the pipe 70 and the stationary case 10.

The two fixing devices 40 are respectively disposed at two ends of the fixing housing 10, each fixing device 40 includes a plurality of pressing covers 41, the plurality of pressing covers 41 enclose a second through hole for accommodating the pipeline 70, each pressing cover 41 includes a pressing portion 411 and a connecting portion 412, the connecting portion 412 is connected to the fixing housing 10, and the pressing portion 411 abuts against the first sealing element 30.

The two locking devices 50 are respectively fixed on the two fixing devices 40, the locking device 50 comprises a plurality of clamping covers 51, the plurality of clamping covers 51 enclose a third through hole for accommodating the pipeline 70, each clamping cover 51 comprises an insertion section 511 and a connecting section 512, the connecting section 512 is connected with the fixing devices 40, and the insertion section 511 is inserted into the second through hole.

The plugging device provided by the application does not need to stop the work of the leaked pipeline 70, only needs to fix the fixing shell 10 on the pipeline 70, aims the drain hole at the leakage hole, and then plugs the plug 20 at the drain hole, so that the plugging of the leaked pipeline 70 can be completed, and the plugging device is simple in plugging process and simple in operation. By designing the fixing shells 10 with different diameters, pipelines 70 with different sizes can be plugged, so that the application range of the product is enlarged, and the market competition is increased. During the plugging period of the leaked pipeline 70, neither pipeline 70 cutting equipment nor electric welding equipment is involved, the leaked pipeline 70 can enter the plugging work in a short time, a large amount of manpower, material resources and time can be reduced, and the leaked pipeline 70 can be used normally in a short time. Through the arrangement of the locking device 50, the fixing device 40 and the first sealing element 30, on one hand, the fixing shell 10 can be more firmly fixed on the leaked pipeline 70, and on the other hand, the sealing performance between the fixing shell 10 and the leaked pipeline is ensured, so that the sufficient leakage stoppage of the leakage stoppage device on the pipeline 70 is ensured.

As shown in fig. 1 and 3, in an embodiment of the present application, a sealing groove 12 is provided on one of the two adjacent casings 11, a second sealing member 60 is provided in the sealing groove 12, and the other casing 11 is pressed against the second sealing member 60. In one embodiment of the present invention, the sealing groove 12 includes a first groove and two second grooves communicating with the first groove, the two second grooves are located on the same side of the first groove, the first groove is disposed along the axial direction of the first through hole, and the second grooves are disposed along the radial direction of the first through hole.

The sealing groove 12 and the second sealing element 60 are used together to ensure the sealing performance between two adjacent outer shells 11, so that the situation that liquid leaks from the gap between two adjacent outer shells 11 is effectively avoided.

As shown in fig. 1, 4 and 5, in one embodiment of the present application, the pressing cover 41 is provided with a slope 413, and the insertion section 511 is provided with a mating surface 513 engaged with the slope 413.

The inclined surface 413 and the matching surface 513 are arranged to enable the insertion section 511 to be more smoothly inserted into the second through hole, so that the pressing portion 411 is further more sufficiently pressed against the first sealing element 30, and the sealing effect of the first sealing element 30 is further sufficiently ensured.

In one embodiment of the present application, the first sealing element is an oil-immersed asbestos packing, and the second sealing element is a rubber sealing rope.

The oil-immersed asbestos packing is made up by using graphite asbestos wire and adding heat-resisting lubricating oil and weaving them together. The oil-immersed asbestos packing is pressed by the gland, the lubricant soaked in the oil-immersed asbestos packing is extruded out, and an oil film is formed between contact surfaces. Because the contact state is not particularly uniform, a 'boundary lubrication' state, namely a 'bearing effect', occurs at the contact part; the concave part which is not contacted forms a small oil groove with a thicker oil film, and the contact part and the non-contact part form an irregular labyrinth to play the role of preventing liquid flow from leaking. The rubber sealing rope has simple structure, compact installation part and light weight.

In one embodiment of the application, the pressing covers are respectively connected with two adjacent shells; and/or the clamping cover is respectively connected with two adjacent pressing covers.

The connecting mode of the gland can ensure that two shells which are adjacently connected are connected more firmly. The clamping covers are connected in the mode, so that two adjacent pressing covers can be connected more firmly. Therefore, the above-described connection method enables the stationary case to be more firmly fixed to the leaking pipe.

As shown in fig. 1, in one embodiment of the present application, the stationary housing 10 includes two outer housings 11, the fixing device 40 includes two pressing covers 41, and the locking device 50 includes two clamping covers 51.

The fixing case 10, the pressing cover 41, and the chucking cover 51 having the above-described structure are simple in structure and high in mechanical strength while ensuring the use requirements.

As shown in fig. 2, in one embodiment of the present application, a plug 20 is threadedly coupled to the stationary casing 10.

The threaded connection mode has simple structure and reliable connection, thereby ensuring the connection strength between the plug 20 and the fixed shell 10.

As shown in fig. 1 and 2, in one embodiment of the present application, the connecting portion 412 is a connecting flange; and/or the connection section 512 is a connection flange.

The connecting flange has the characteristics of convenience in disassembly, high strength, good sealing performance and the like.

The use of the leak-stopping joint provided by the present application is specifically described below with reference to fig. 1 and 2:

first, the first casing 11 is jacked up to the bottom of the leakage hole of the leaking pipe 70, the inner diameter of the retainer ring segment 13 is made to contact with the bottom arc surface of the leaking pipe 70, the second sealing member 60 is installed in the sealing groove 12, and both ends of the second sealing member 60 slightly protrude out of the sealing groove 12 and enter the gap between the first casing 11 and the leaking pipe 70. Secondly, the second housing 11 is hung on the first housing 11, the first housing 11 and the second housing 11 are assembled into the fixed housing 10 through screws, and a plurality of layers of oil-immersed asbestos packing are respectively inserted into gaps between two ends of the fixed housing 10 and the leakage pipeline 70. Thirdly, a plurality of pressing covers 41 are respectively and sequentially installed at two ends of the fixed shell 10, the connecting parts 412 of the pressing covers 41 are connected with the fixed shell 10 through screws, and the inserting sections 511 of the pressing covers 41 are pressed against the multilayer oil-immersed asbestos packing so as to enable the oil-immersed asbestos packing to be deflated and fill the surrounding gap, and thus sealing between the leaking stoppage joint and the leaking pipeline 70 is realized. Finally, a plurality of clamping covers 51 are sequentially installed, the connecting section 512 of each clamping cover 51 is connected with the corresponding gland 41 through a screw, and the inserting section 511 of each clamping cover 51 is clamped between the inclined surface 413 of the corresponding gland 41 and the leaking pipeline 70, so that the axial clamping between the leaking stoppage joint and the leaking pipeline 70 is realized.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application. In this application, the term "plurality" means two or more unless explicitly defined otherwise. In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims (10)

1. A plugging device for a pipeline, comprising:

the fixed shell comprises a plurality of outer shells, the fixed shell is provided with a drain hole, and the plurality of outer shells surround a first through hole for accommodating a pipeline;

the pipe plug seals the drain hole;

the two first sealing pieces are arranged on the inner wall of the first through hole and arranged along the circumferential direction of the first through hole, and are respectively arranged at two ends of the fixed shell and used for sealing a gap between a pipeline and the fixed shell;

the two fixing devices are respectively arranged at two ends of the fixing shell and comprise a plurality of pressing covers, the pressing covers surround second through holes for accommodating pipelines, each pressing cover comprises a pressing part and a connecting part, the connecting parts are connected with the fixing shell, and the pressing parts are pressed on the first sealing parts; and

two locking device, two locking device fix respectively on two fixing device, just locking device includes a plurality of chucking lid, and is a plurality of the chucking lid encloses into the third through-hole that is used for holding the pipeline, the chucking lid includes grafting section and linkage segment, the linkage segment with fixing device connects, the grafting section inserts in the second through-hole.

2. Plugging device according to claim 1,

the pressing cover is provided with an inclined plane, and the inserting section is provided with a matching surface matched with the inclined plane.

3. Plugging device according to claim 1,

and one of the two adjacent shells is provided with a sealing groove, a second sealing element is arranged in the sealing groove, and the other shell is pressed against the second sealing element.

4. Plugging device according to claim 3,

the sealing groove comprises a first groove and two second grooves communicated with the first groove, the two second grooves are located on the same side of the first groove, the first groove is axially arranged along the first through hole, and the second grooves are radially arranged along the first through hole.

5. Plugging device according to claim 3,

the first sealing element is an oil-immersed asbestos packing, and the second sealing element is a rubber sealing rope.

6. Plugging device according to claim 1,

two retaining ring segments are arranged on the hole wall of the first through hole at intervals.

7. Plugging device according to claim 1,

the pressing covers are respectively connected with two adjacent shells; and/or

The clamping covers are respectively connected with two adjacent pressing covers.

8. Plugging device according to claim 1,

the fixed shell comprises two shells, the fixing device comprises two press covers, and the locking device comprises two clamping covers.

9. Plugging device according to claim 1,

the plug is screwed with the fixed shell.

10. Plugging device according to claim 1,

the connecting part is a connecting flange; and/or

The connecting section is a connecting flange.

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