CN113280207A - Pipeline plugging device - Google Patents
Pipeline plugging device Download PDFInfo
- Publication number
- CN113280207A CN113280207A CN202110698210.2A CN202110698210A CN113280207A CN 113280207 A CN113280207 A CN 113280207A CN 202110698210 A CN202110698210 A CN 202110698210A CN 113280207 A CN113280207 A CN 113280207A
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- Prior art keywords
- pressing plate
- annular
- sealing rubber
- support frame
- rubber sleeve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention relates to the technical field of pipeline plugging, in particular to a pipeline plugging device which comprises an upper pressing plate, a lower pressing plate and a sealing rubber sleeve, wherein two ends of the sealing rubber sleeve are respectively connected with the upper pressing plate and the lower pressing plate, at least one guide post is arranged between the upper pressing plate and the lower pressing plate, a circular sliding block is sleeved on the guide post, a through hole is formed in the center of the upper pressing plate, a rotating shaft is arranged in the through hole, external threads on the rotating shaft are matched and connected with internal threads of the threaded hole, a plurality of supporting frames are arranged on the periphery of the lower pressing plate in the sealing rubber sleeve in an annular array mode, and the circular sliding block extrudes the supporting frames which are not connected with the upper pressing plate or the lower pressing plate to the side of the sealing rubber sleeve when the rotating shaft moves axially. The pipeline plugging device can plug a pipeline, and the support frame continuously provides pressure for the sealing rubber sleeve in the plugging process so as to ensure the stability and the continuity of the sealing effect.
Description
Technical Field
The invention relates to the technical field of pipeline plugging, in particular to a pipeline plugging device.
Background
Among the prior art, pipeline plugging device generally utilizes top board, holding down plate to extrude, extrudees the outside hunch-up of annular structure's rubber circle for the external diameter of rubber circle increases, thereby realizes producing certain pressure between rubber circle and the pipeline inner wall, realizes that the pipeline seals, can keep the sealed between rubber circle and the pipeline. However, after a long time of use, the rubber will be fatigued by the action of external environmental factors, and the elasticity thereof is weakened, so that the sealing performance between the rubber ring and the pipeline is reduced, and the plugging effect of the pipeline is reduced.
Disclosure of Invention
The present invention has been made to solve the above-mentioned technical problems, and an object of the present invention is to provide a pipe plugging device which can seal a pipe and has a good durability of the sealing effect.
The invention discloses a pipeline plugging device, which comprises an upper pressing plate, a lower pressing plate and a sealing rubber sleeve, wherein two ends of the sealing rubber sleeve are respectively connected with the upper pressing plate and the lower pressing plate, at least one guide post is arranged between the upper pressing plate and the lower pressing plate, a circular slide block is sleeved on the guide post, a through hole is arranged at the center of the upper pressing plate, a rotating shaft is arranged in the through hole, a clamp spring is arranged on the upper pressing plate at the through hole, an annular clamping groove is arranged on the rotating shaft at the position corresponding to the clamp spring, the clamp spring is clamped in the annular clamping groove, an external thread is arranged on the rotating shaft below the annular clamping groove, a threaded hole is arranged on the circular slide block corresponding to the rotating shaft, the external thread on the rotating shaft is matched and connected with the internal thread of the threaded hole, and a plurality of supporting frames are arranged on the periphery of the upper pressing plate or the lower pressing plate in the sealing rubber sleeve in an annular array, the supporting frame is rotatably connected with the upper pressing plate or the lower pressing plate which is connected with the supporting frame, and the supporting frame which is not connected with the upper pressing plate or the lower pressing plate is extruded to the side of the sealing rubber sleeve by the circular sliding block when the rotating shaft axially moves.
Among the above-mentioned technical scheme, when carrying out the shutoff to the pipeline, only need insert the device in the pipeline, rotate the pivot, realize relative rotation between pivot and the top board, and because the pivot lower extreme be provided with the screw thread and with circular slider cooperation, so circular slider can slide on the guide post, produce axial displacement. At circular slider at the slip in-process, can outwards propelling movement with the support frame to make and the support frame that wants the contact with the sealing rubber cover outwards push up the sealing rubber cover, make the sealing rubber cover produce annular outside arch, thereby and pipeline inner wall between produce certain pressure and seal. In addition, in the subsequent use process, the rotating shaft cannot rotate under the action of no external force, so that the position of the circular sliding block is relatively fixed, and the supporting frame is always pushed outwards, so that the outward pressure of the supporting frame on the sealing rubber sleeve is kept unchanged, the service life of the sealing rubber sleeve is long, the sealing performance is good, and the use performance of the sealing rubber sleeve cannot be rapidly degraded due to rubber aging. Utilize the support frame to produce outside holding power to the sealing rubber cover in this scheme simultaneously, need not to utilize rubber deformation and produce pressure, so can reduce the thickness of sealing rubber cover, do not influence sealing performance, but also can increase its performance of outside expansion for the device is better to the adaptability of pipeline diameter, and application range is wide.
The support frame is connected one end with top board or holding down plate and is the link, and the other end of support frame is for supporting the end, is provided with the arc supporting part on supporting the support frame in the end outside, and the arc supporting part on all support frames forms annular bearing structure, the inner space that the support frame formed is circular truncated cone hollow structure, circular slider is located the inner space that the support frame formed, and circular slider's diameter is greater than the minimum diameter of the inner space that the support frame formed, is less than the maximum diameter of the inner space that the support frame formed. Above-mentioned structure, as preferred, can be connected the support frame on the holding down plate, the support end of support frame sets up the arc supporting part, forms a ring structure after all arc supporting parts of it dock, so better to the supporting effect of sealing rubber sleeve, supports more comprehensively.
An annular rubber ring is arranged on an annular supporting structure formed by the arc-shaped supporting part of the supporting frame. Because in the use, when circular slider outwards pushed the support frame, the radius grow of the ring shape structure that encloses between the arc supporting part of the support end of support frame, so can have a small amount of clearances between the adjacent arc supporting part, cladding through annular rubber circle, can make clearance department between the arc supporting part produce the support to the sealing rubber cover by annular rubber circle, thereby can realize carrying out whole supports to the annular position of whole sealing rubber cover, to the shutoff effect of pipeline, the leakproofness is better.
A plurality of annular sealing bulges are arranged on the sealing rubber sleeve at the corresponding position of the supporting part of the supporting frame at intervals. The design of this structure can effectively promote the sealing performance between sealing rubber sleeve and the pipeline.
As optimization, all be provided with an annular inner groovy at the side of top board and the side of holding down plate, the both ends of sealing rubber sleeve form annular step along the axial, and the sealing rubber sleeve in the step outside is laminated with the diapire of the annular inner groovy that corresponds to hold tightly through the clamp. The design of this structure, the both ends that can be better realize the sealing rubber cover respectively with the top board, the sealed fastening between the holding down plate, fixed firm stability.
Glue is coated between the sealing rubber sleeve and the annular inner groove. The sealing between the sealing rubber sleeve and the upper pressure plate and between the sealing rubber sleeve and the lower pressure plate can be more stable.
The support frame is connected with the lower pressing plate, the lower pressing plate inside the sealing rubber sleeve is provided with an annular baffle, a plurality of limiting grooves are uniformly formed in the annular baffle in an annular mode at intervals, limiting blocks extend outwards on the annular baffle on two sides of each limiting groove, a connecting end of the support frame is provided with a connecting through hole, a support frame is arranged in each limiting groove, the connecting through holes of all the support frames are connected in series through a clamp, and the clamp is connected between the limiting blocks outside the annular baffle and the lower pressing plate. The design of this structure, can be convenient connect the support frame on the holding down plate, and the location between every support frame is stable, and the assembly is more simple and convenient, can promote assembly efficiency.
The pipeline plugging device can plug a pipeline, the supporting frame continuously provides pressure for the sealing rubber sleeve in the plugging process so as to ensure the stability and the continuity of the sealing effect, and in addition, the whole end face of the lower pressing plate is not provided with a through hole, so that the sealing performance is better.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
fig. 3 is a schematic structural view of the lower platen of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Example 1:
as shown in fig. 1, 2 and 3, the invention discloses a pipeline plugging device, which comprises an upper pressing plate 1, a lower pressing plate 2 and a sealing rubber sleeve 3, wherein two ends of the sealing rubber sleeve 3 are respectively connected with the upper pressing plate 1 and the lower pressing plate 2, four guide posts 14 are arranged between the upper pressing plate 1 and the lower pressing plate 2, a circular sliding block 10 is sleeved on the guide posts 14, a through hole 6 is arranged at the center of the upper pressing plate 1, a rotating shaft 5 is arranged in the through hole 6, a snap spring 7 is arranged on the upper pressing plate 1 at the through hole 6, an annular clamping groove 8 is arranged on the rotating shaft 5 at the position corresponding to the snap spring 7, the snap spring 7 is clamped in the annular clamping groove 8, an external thread 9 is arranged on the rotating shaft 5 below the annular clamping groove 8, a threaded hole is arranged on the circular sliding block 10 corresponding to the rotating shaft 5, the external thread 9 on the rotating shaft 5 is in fit connection with an internal thread of the threaded hole, the periphery of the lower pressing plate 2 inside the sealing rubber sleeve 3 is provided with a plurality of supporting frames 11 in an annular array mode, the supporting frames 11 are rotatably connected with the lower pressing plate 2 connected with each other, and the circular sliding blocks 10 extrude the supporting frames 11 which are not connected with the lower pressing plate 2 to the side of the sealing rubber sleeve 3 when the rotating shafts 5 move axially.
One end that support frame 11 is connected with holding down plate 2 is the link, and the other end of support frame 11 is for supporting the end, is provided with arc supporting part 12 on the support frame 11 that supports the end outside, and arc supporting part 12 on all support frames 11 forms annular bearing structure, the inner space that support frame 11 formed is circular truncated cone hollow structure, circular slider 10 is located the inner space that support frame 11 formed, and the diameter of circular slider 10 is greater than the minimum diameter of the inner space that support frame 11 formed, is less than the maximum diameter of the inner space that support frame 11 formed.
An annular rubber ring 13 is arranged on an annular supporting structure formed by the supporting part of the supporting frame 11.
A plurality of annular sealing bulges 4 are arranged on the sealing rubber sleeve 3 corresponding to the supporting part of the supporting frame 11 at intervals.
As optimization, all be provided with an annular inner groovy 18 at the side of top board 1 and the side of holding down plate 2, the both ends of sealing rubber sleeve 3 form annular step along the axial, and the sealing rubber sleeve 3 in the step outside is laminated with the diapire of the annular inner groovy 18 that corresponds to hold tightly through the clamp.
Glue is applied between the sealing rubber sleeve 3 and the annular inner groove 18.
Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but may be embodied or carried out in various forms without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a pipeline plugging device, includes top board, holding down plate and sealing rubber cover, characterized by: the two ends of the sealing rubber sleeve are respectively connected with the upper pressing plate and the lower pressing plate, at least one guide post is arranged between the upper pressing plate and the lower pressing plate, a circular sliding block is sleeved on the guide post, a through hole is arranged at the center of the upper pressing plate, a rotating shaft is arranged in the through hole, a snap spring is arranged on the upper pressing plate at the through hole, an annular clamping groove is arranged on the rotating shaft at the position corresponding to the snap spring, the snap spring is clamped in the annular clamping groove, an external thread is arranged on the rotating shaft below the annular clamping groove, a threaded hole is arranged on the circular sliding block corresponding to the rotating shaft, the external thread on the rotating shaft is matched and connected with an internal thread of the threaded hole, a plurality of supporting frames are arranged on the periphery of the upper pressing plate or the lower pressing plate in the sealing rubber sleeve in an annular array manner, and the supporting frames are rotatably, and the circular sliding block extrudes the support frame which is not connected with the upper pressure plate or the lower pressure plate to the side of the sealing rubber sleeve when the rotating shaft axially moves.
2. The pipeline plugging device of claim 1, wherein: the support frame is connected one end with top board or holding down plate and is the link, and the other end of support frame is for supporting the end, is provided with the arc supporting part on supporting the support frame in the end outside, and the arc supporting part on all support frames forms annular bearing structure, the inner space that the support frame formed is circular truncated cone hollow structure, circular slider is located the inner space that the support frame formed, and circular slider's diameter is greater than the minimum diameter of the inner space that the support frame formed, is less than the maximum diameter of the inner space that the support frame formed.
3. The pipeline plugging device of claim 2, wherein: an annular rubber ring is arranged on an annular supporting structure formed by the supporting part of the supporting frame.
4. A pipeline plugging device according to claim 2 or 3, wherein: a plurality of annular sealing bulges are arranged on the sealing rubber sleeve at the corresponding position of the supporting part of the supporting frame at intervals.
5. The pipeline plugging device of claim 1, wherein: the side at the top board and the side of holding down plate all are provided with an annular inner groovy, the both ends of sealing rubber sleeve form annular step along the axial, and the sealing rubber sleeve in the step outside is laminated with the diapire of the annular inner groovy that corresponds to hold tightly through the clamp.
6. The pipeline plugging device of claim 5, wherein: glue is coated between the sealing rubber sleeve and the annular inner groove.
7. The pipeline plugging device of claim 2, wherein: the support frame is connected with the lower pressing plate, the lower pressing plate inside the sealing rubber sleeve is provided with an annular baffle, a plurality of limiting grooves are uniformly formed in the annular baffle in an annular mode at intervals, limiting blocks extend outwards on the annular baffle on two sides of each limiting groove, a connecting end of the support frame is provided with a connecting through hole, a support frame is arranged in each limiting groove, the connecting through holes of all the support frames are connected in series through a clamp, and the clamp is connected between the limiting blocks outside the annular baffle and the lower pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110698210.2A CN113280207A (en) | 2021-06-23 | 2021-06-23 | Pipeline plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110698210.2A CN113280207A (en) | 2021-06-23 | 2021-06-23 | Pipeline plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113280207A true CN113280207A (en) | 2021-08-20 |
Family
ID=77285529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110698210.2A Pending CN113280207A (en) | 2021-06-23 | 2021-06-23 | Pipeline plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113280207A (en) |
-
2021
- 2021-06-23 CN CN202110698210.2A patent/CN113280207A/en active Pending
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