CN213479520U - Packing box type pipeline plugging device - Google Patents
Packing box type pipeline plugging device Download PDFInfo
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- CN213479520U CN213479520U CN202021656696.0U CN202021656696U CN213479520U CN 213479520 U CN213479520 U CN 213479520U CN 202021656696 U CN202021656696 U CN 202021656696U CN 213479520 U CN213479520 U CN 213479520U
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- sealing
- plugging device
- pipeline
- fastening nut
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Abstract
The utility model relates to a pipeline shutoff field specifically is a filler letter formula pipeline plugging device, sealing bolt, sealing washer and fastening nut and seal cover including. The sealing bolt with the through hole sequentially penetrates through the sealing ring and the fastening nut, the fastening nut is installed at the rear end of the sealing bolt through thread matching, the sealing ring is extruded by utilizing the relative rotation of the nut and the sealing bolt, the inner wall of the pipeline and the sealing ring are plugged, and then the sealing sleeve is installed at the rear end extension section of the sealing bolt through thread matching, so that the through hole is plugged. The device can utilize the perforating hole discharge medium before sealed the completion, has effectively avoided the risk that plugging device was ejecting the pipeline by the medium, and has simple structure, and the installation is easy and simple to handle, is applicable to the advantage of various leaking stoppage environments, need not to close system operation simultaneously during the use, can not produce the pollution and produce the destruction to the pipeline to the medium of leaking, has guaranteed the saving cyclic utilization of resource and the stability of equipment work.
Description
Technical Field
The utility model relates to a pipeline shutoff field specifically is a filler letter formula pipeline plugging device.
Background
In various current common mechanical equipment and systems, a large amount of gaseous and liquid media are transported and conveyed by pipelines, and water, water vapor, fuel gas and the like are common. In the use, the valve leads to valve core and the sealed face of disk seat to damage because of all kinds of reasons such as corruption, foreign matter, misoperation to produce and make the valve lose sealing function, inside medium takes place interior hourglass from the pipeline mouth of valve low reaches. Because the transported medium has the characteristics of high temperature, high pressure, flammability, explosiveness and the like, the pipeline is not suitable to be plugged by a direct welding mode. If the high-pressure sealant is used for sealing the pipeline, the medium is easily polluted, and further use or recycling is influenced. Meanwhile, the valve can not be safely isolated from the system when mechanical equipment runs, and the valve is not disassembled for maintenance or has large loss or negative effect when the system is closed for maintenance.
For example, a pressure pipeline packing sealing type shaft plug disclosed in patent document CN201720884051 includes a sleeve with a through structure, a draw bar bolt, a nut and an elastic packing. And the threaded end of the pull rod bolt sequentially penetrates through the elastic filler and the sleeve and then is matched and connected with the nut to form the plug device. Will in the end cap inserts the pipeline that takes place to leak, fix the hexagonal end of stay bolt through the spanner, restrict it and take place to rotate, reuse spanner screw up the nut, make the main aspects of stay bolt outwards remove to the pipeline, the main aspects of stay bolt and sleeve produced the extrusion to the elastic packing in the middle of this moment make elastic packing radial dimension enlarge and closely laminate with the pipeline inner wall, realize leaking the sealed of pipeline in to simple structure, simple to operate can take the pressure to the pipeline and seal. However, when the pressure pipeline packing sealing type shaft plug is used, because the axial force is provided by directly utilizing the friction force generated by extrusion between the elastic packing and the inner wall of the pipeline, the axial force is small in the initial state in the sealing process, and the plug is easy to be ejected out of the pipeline by an internal medium, extra supporting force needs to be provided for the plug to guarantee work, and inconvenience is brought to the sealing operation. Therefore, a plugging device which is simple and convenient to operate and can effectively prevent the plug from being ejected out of the pipeline needs to be provided.
SUMMERY OF THE UTILITY MODEL
The technical problem is as follows:
the utility model aims at providing a simple structure, convenient operation's filler letter formula pipeline plugging device can effectively avoid being washed out the pipeline mouth by the medium, has good leakproofness and stability.
Technical scheme
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a filler letter formula pipeline plugging device, is including being used for installing sealed bolt, sealing washer and the fastening nut at the pipeline mouth, sealed bolt front end is provided with and is used for supporting the cyclic annular outer convex part of sealing washer, the sealing washer cup joints the main part supporting part at sealed bolt, the rear end of main part supporting part is provided with the first screw thread portion that is used for installing fastening nut, its characterized in that: the sealing bolt is provided with a through hole along the axial direction, and further comprises a rear end extension section connected to the main body supporting part, wherein a second thread part used for installing a sealing sleeve is arranged on the rear end extension section, and the sealing sleeve is provided with a threaded hole.
As right the utility model discloses a preferably, the retaining ring before sealing washer and cyclic annular convex part laminating department install, the retaining ring after sealing washer and fastening nut laminating department install.
Preferably, the sealing device further comprises a sealing cover sleeved on the first thread part and positioned at the front side of the nut and used for abutting against the joint pipeline opening.
Preferably, the radial dimension of the first thread part is larger than the radial dimension of the second thread part, and the thread rotating directions of the first thread part and the second thread part are opposite.
Preferably, the main body supporting portion is provided with a plurality of front and rear sealing rings which are sequentially abutted against each other.
As to the utility model discloses an it is preferred, the sealing washer is the nylon materials.
Preferably, a reinforcing device is installed behind the fastening nut for supporting the rear end of the fastening nut.
Preferably, the reinforcing means comprises a post rod for abutting against the fastening nut and an adjusting rod for adjusting the length of the reinforcing means.
Preferably, the front end of the ejector rod is recessed inwards to form a hollow inner concave part for accommodating the sealing sleeve.
As right the utility model discloses a it is preferred ejector pin rear end is provided with adjusting screw thread portion, the front end on the regulation pole is provided with by preceding to offer the screw hole that is used for corresponding the cooperation with the adjusting screw thread portion of ejector pin and is connected backward, the rear end setting of adjusting the pole is used for the terminal surface that supports and lean on.
Has the advantages that:
1. the stuffing box type pipeline plugging device is provided with the through hole in the center of the plug, and internal media are discharged through the through hole when sealing is not completed, so that the plugging device is prevented from being ejected out of a pipeline opening.
2. The filler function type pipeline plugging device realizes safe and reliable rapid plugging of various different internal leakage media in the pipeline only by physical means.
3. The packing function type pipeline plugging device can plug a pipeline on line under the condition that an equipment system is not closed, and the influence on the working stability of the equipment is reduced.
4. The filler letter formula plugging device's structure is succinct, the installation operation of being convenient for, and the shutoff effect is stable.
5. The filler box type plugging device avoids pollution to media in use and cannot damage a pipeline system.
6. The stuffing box type plugging device is additionally provided with the reinforcing device, a supporting force is provided along the axial direction of the pipeline, and the risk that the plugging device is ejected out of the pipeline under the pressure or impact of a medium to lose the plugging effect is reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a packing box type pipeline plugging device in a sealing state
FIG. 2 is a schematic view of the cross-section of each component of the packing box type pipeline plugging device
FIG. 3 is a schematic view of parts of the sealing plug
FIG. 4 is a schematic view of a reinforcing apparatus
In the figure:
1-a sealing plug, 1 a-a through hole, 1 b-a body supporting part, 1 c-an annular external protrusion, 1 d-a rear end extension, 1 e-a first threaded part, 1 f-a second threaded part;
2-front retainer ring;
3-sealing ring;
4-rear retainer ring;
5-sealing cover;
6, fastening a nut;
7-sealing sleeve;
8-ejector rod, 8 a-hollow concave part, 8 b-annular end surface, 8 c-adjusting thread part;
9-adjusting rod, 9 a-threaded hole;
10-a pipeline;
Detailed Description
The following specific embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.
The scheme is realized by the following technical means:
example 1: a packing box type pipeline plugging device mainly comprises four parts, namely a sealing bolt 1, a sealing ring 3, a fastening nut 6 and a sealing sleeve 7. The sealing ring 3 is an annular component with certain elastic deformation capacity and good sealing performance, and the sealing sleeve is a cylindrical component provided with a non-through threaded hole along the axial direction. The main body supporting part 1b of the sealing bolt 1 is cylindrical, a through hole 1a is formed in the center of the sealing bolt 1 along the axial direction, an annular outer convex part 1c is arranged at the front end of the sealing bolt 1, and the outer diameter of the annular outer convex part 1c is larger than that of the main body supporting part 1b and smaller than the inner diameter of the pipeline 10; a first threaded portion 1e for mounting a fastening nut is provided at the rear end of the main body support portion 1b of the seal bolt 1, a rear end extension 1d is formed by the rearward extension of the main body support portion 1b, and the rear end extension 1d is provided with a second threaded portion 1f for mounting a seal sleeve 7. A sealing ring 3 with the outer diameter smaller than the inner diameter of the pipeline 10 is sleeved on the main body supporting part 1b of the sealing bolt 1 from back to front, the inner diameter of the sealing ring 3 is smaller than the outer diameter of the annular convex part 1c, and the sealing ring 3 can abut against the side surface of the annular convex part 1c and cannot fall off. A fastening nut 6 is mounted on the first threaded portion 1e at the rear end of the sealing plug 3, and the fastening nut 6 can rotate around the axis of the sealing plug 1 and move along the axial direction of the sealing plug 1.
In an initial state, after the sealing ring 3 is sleeved on the main body supporting part 1b, the fastening nut 6 is installed, the outer diameter of the assembly is smaller than the inner diameter of the pipeline 10 to be plugged, the assembly can be smoothly placed into a pipeline opening, and at the moment, a medium leaked in the pipeline 10 escapes outwards through the through hole 1a of the sealing bolt 1 and a gap between the sealing ring 3 and the inner wall of the pipeline 10. When the sealing bolt 1 is fixed by a clamping device such as a vice to prevent the sealing bolt from rotating around the axial direction, the fastening nut 6 is rotated by a wrench, so that the fastening nut 6 and the sealing bolt 1 rotate relatively around the same axis, and the fastening nut 6 moves along the axial direction to be close to the annular outer convex part 1c until the front end face and the rear end face of the sealing ring 3 are respectively tightly attached to the annular outer convex part 1c and the fastening nut 6. At this time, the fastening nut 6 is continuously rotated, the annular outer convex part 1c and the fastening nut 6 are continuously close to each other, an axial extrusion effect is generated on the sealing ring 3 between the annular outer convex part and the fastening nut, meanwhile, the sealing ring 3 is extruded to deform, the radial size of the sealing ring is increased, the outer side surface of the sealing ring 3 is tightly attached to the inner wall of the pipeline 10, and the plugging of escaping media between the inner wall of the pipeline 10 and the sealing ring 3 is completed. When the installation step is completed, all the medium in the pipeline escapes from the through hole 1a in the center of the sealing bolt 1. And a sealing sleeve 7 with a threaded non-through hole is arranged at the second thread part 1f on the rear end extension section 1d of the sealing bolt 1d in a threaded matching manner from front to back and is screwed down, so that the through hole 1a of the sealing bolt 1 is sealed, and the sealing work of all leakage media in the pipeline 10 is further completed.
Example 2: in the embodiment described in embodiment 1, it is preferable that the front retainer 2 is attached to a portion where the packing 3 is attached to the annular projecting portion 1c, and the rear retainer 4 is attached to a portion where the packing 3 is attached to the fastening nut 6. Two side surfaces of the front check ring 2 respectively abut against the annular convex part 1c and the front end surface of the sealing ring 3, and two side surfaces of the rear check ring 4 respectively abut against the rear end surface of the sealing ring 3 and the fastening nut 6. The outer diameter of the retainer ring is larger than the outer diameters of the annular outer convex part 1c and the fastening nut 6, so that the stress of the sealing ring 3 can be improved, and the phenomenon that the sealing ring 3 is damaged and broken due to the fact that the annular outer convex part 1c and the fastening nut 6 directly extrude the sealing ring 3 is avoided. Meanwhile, the sealing rings 3 and the check rings with different outer diameter sizes are selected to be matched, so that the sealing requirements on pipelines 10 with various inner diameter sizes can be met.
Example 3: on the basis of the scheme of the embodiment 1 or 2, the first thread part 1e of the sealing bolt 1 is further sleeved with a circular sealing cover 5 arranged on the front end face of the fastening nut 6, the outer diameter of the sealing cover 5 is larger than the inner diameter of the pipeline 10, and two side faces of the sealing cover are respectively abutted and attached to the fastening nut 6 and the pipeline opening. The sealing cover 5 arranged between the pipeline opening and the fastening nut 6 is used for propping against the pipeline opening, so that the situation that the fastening nut 6 moves inwards to enter the pipeline 10 when the packing type pipeline plugging device is used and the inconvenience is brought to subsequent fastening operation is avoided. Meanwhile, the front end face of the sealing cover 5 is tightly attached to the opening of the pipeline to form a second sealing surface along the radial direction of the pipeline 10, so that the leakage of media is further prevented, and the sealing effect is improved.
Example 4: with regard to any of the aspects of embodiments 1 to 3, it is preferable that the radial dimension of the first threaded portion 1d is larger than the radial dimension of the second threaded portion 1f, forming a stepped configuration. The external thread of the first thread part 1e is correspondingly matched with the internal thread of the fastening nut 6, and the external thread of the diameter of the second thread part 1f is matched with the internal thread of the sealing sleeve 7. A fastening nut 6 and a gland 7 are mounted on the first threaded portion 1e and the second threaded portion 1f, respectively. Preferably, the first thread part 1e and the second thread part 1f are provided as a pair of threads with opposite rotation directions, and the sealing sleeve 7 is mounted through the oppositely arranged threads, and the fastening nut 6 and the sealing sleeve 7 are rotated in opposite directions at the same time, so that a set of twisting force with opposite directions is generated, the fixing operation of axial rotation of the sealing bolt 1 is omitted, the fastening force is further improved, and the sealing effect is improved.
Example 5: on the basis of the scheme of any one of embodiments 1-4, a reinforcing device comprising a mandril 8 and an adjusting rod 9 is additionally arranged at the rear end of the fastening nut 6. The front end of the ejector rod 8 is inwards sunken to form a hollow inner concave part 8a used for accommodating the sealing sleeve 7 and the tail end of the thread part 1c, the front end surface of the ejector rod 8 is an annular end surface 8b, and the annular end surface 8b is used for abutting against the fastening nut 6; the rear end is a regulation screw thread portion 8c that is provided with the external screw thread, regulation screw thread portion 8c is connected as an organic whole with the screw hole 9a cooperation of the internal screw thread that the regulation pole 9 front end was seted up, adjusts the whole length of reinforcing means through rotatory regulation pole 9, realizes that the rear end and the outside face of ejector pin 8 support and lean on and be fixed at the axial. Through the structure, the reinforcing device is installed between the fixed outer face and the stuffing box type pipeline plugging device main body, supporting force along the axial direction of the pipeline is provided for the stuffing box type pipeline plugging device, and the phenomenon that the device is pushed out of the pipeline opening outwards under the action of internal pressure and impact of the pipeline 10 to lose the sealing effect is prevented.
Example 6: on the basis of any of the embodiments 1-5, a plurality of sealing rings 3 which abut against each other in sequence are selected to be arranged on the main body supporting part 1 b. The sealing rings 3 arranged in multiple ways can select the quantity and thickness of the sealing rings 3 according to different pressure conditions in the pipeline 10 in actual use, and can also select the materials used by the sealing rings 3 according to different types and characteristics of required plugging media, so that a more stable and reliable sealing effect is obtained in actual use.
Example 7: as preferred for any of embodiments 1-6, a nylon material for the sealing ring 3 is used to achieve better sealing performance and flexibility. Considering the possible characteristics of high temperature and corrosion of the medium inside the pipeline 10 to be plugged, the sealing ring 3 is further selected to be a high temperature resistant and corrosion resistant composite material.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a filler letter formula pipeline plugging device, is including being used for installing sealed bolt, sealing washer and the fastening nut at the pipeline mouth, sealed bolt front end is provided with and is used for supporting the cyclic annular outer convex part of sealing washer, the sealing washer cup joints the main part supporting part at sealed bolt, the rear end of main part supporting part is provided with the first screw thread portion that is used for installing fastening nut, its characterized in that: the sealing bolt is provided with a through hole along the axial direction, and further comprises a rear end extension section connected to the main body supporting part, wherein a second thread part used for installing a sealing sleeve is arranged on the rear end extension section, and the sealing sleeve is provided with a threaded hole.
2. The packing function pipeline plugging device of claim 1, wherein: a front check ring is arranged at the joint of the sealing ring and the annular outer convex part, and a rear check ring is arranged at the joint of the sealing ring and the fastening nut.
3. The packing function pipeline plugging device of claim 1, wherein: the sealing cover is sleeved on the first threaded part, is positioned on the front side of the nut and is used for abutting against the pipeline port.
4. The packing function pipeline plugging device of claim 1, wherein: the radial dimension of the first thread part is larger than that of the second thread part, and the thread rotating directions of the first thread part and the second thread part are opposite.
5. The packing function pipeline plugging device of claim 1, wherein: the main body supporting part is provided with a plurality of sealing rings which are sequentially abutted against each other from front to back.
6. The packing function pipeline plugging device of claim 1, wherein: the sealing ring is made of nylon materials.
7. The packing function pipeline plugging device of claim 1, wherein: and a reinforcing device used for propping against the rear end of the fastening nut is arranged behind the fastening nut.
8. The packing function pipeline plugging device of claim 7, wherein: the reinforcing device comprises an ejector rod used for abutting against the fastening nut and an adjusting rod used for adjusting the length of the reinforcing device.
9. The stuffing box conduit plugging device of claim 8, wherein: the front end of the ejector rod is inwards sunken to form a hollow inner concave part used for accommodating the sealing sleeve.
10. The stuffing box conduit plugging device of claim 9, wherein: the ejector pin rear end is provided with adjusting screw portion, the front end on adjusting the pole is provided with by preceding to offer the screw hole that is used for corresponding the cooperation to be connected with the adjusting screw portion of ejector pin backward, the rear end setting of adjusting the pole is used for the terminal surface that supports and lean on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021656696.0U CN213479520U (en) | 2020-08-11 | 2020-08-11 | Packing box type pipeline plugging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021656696.0U CN213479520U (en) | 2020-08-11 | 2020-08-11 | Packing box type pipeline plugging device |
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| Publication Number | Publication Date |
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| CN213479520U true CN213479520U (en) | 2021-06-18 |
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| CN202021656696.0U Active CN213479520U (en) | 2020-08-11 | 2020-08-11 | Packing box type pipeline plugging device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115250788A (en) * | 2022-08-23 | 2022-11-01 | 中铁西北科学研究院有限公司 | Ecological planting device capable of uniformly heating |
-
2020
- 2020-08-11 CN CN202021656696.0U patent/CN213479520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115250788A (en) * | 2022-08-23 | 2022-11-01 | 中铁西北科学研究院有限公司 | Ecological planting device capable of uniformly heating |
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