CN220134952U - Pipeline plugging device with pressurizing device and pipeline plugging structure - Google Patents

Abstract

The utility model relates to the field of pipeline non-stop pressurized plugging construction, in particular to a pipeline plugging device with a pressurizing device and a pipeline plugging structure.

Description

Pipeline plugging device with pressurizing device and pipeline plugging structure

Technical Field

The utility model relates to the field of pipeline non-stop pressurized plugging construction, in particular to a pipeline plugging device with a pressurizing device and a pipeline plugging structure.

Background

The utility model discloses a hydraulic plugging device for the inside of a pipeline without stopping delivery and with pressure plugging, which is a special technology for maintenance and rush repair, and the Chinese patent publication No. CN 207569434U entitled. The plugging head is internally provided with a tensioning hydraulic cylinder, and a tensioning piston rod of the tensioning hydraulic cylinder is connected with a plugging head mounting seat through a swinging shaft; the hydraulic rubber tube is provided with two hydraulic hoses, one end of the hydraulic rubber tube is connected with an oil port of a manual reversing valve fixed outside the plugging header, the other end of the hydraulic rubber tube is respectively connected with an oil inlet A and an oil inlet B on the tensioning piston rod, and the manual reversing valve is connected with a hydraulic power source; when the blocking head is at the initial installation position of the blocking head, the outer diameter of the blocking head is smaller than the inner diameter of the pipeline to be blocked, and after the blocking head works at the working position of the blocking head, the outer diameter of the blocking head is larger than the inner diameter of the pipeline to be blocked.

Because the device adopts the hydraulic hose oil supply, the hose spiral is contractedly in the even incasement, can't judge the hose state when using, and the hose twines on the shutoff head easily, or presss from both sides in the device inner structure gap, causes unable oil supply, also brings the potential safety hazard for shutoff construction operation, leads to the shutoff operation failure even, and the pressure that the hose can bear is limited, is unfavorable for the scene that needs high pressure shutoff, and the hose is damaged easily, needs often to change the hose, uses inconveniently. It is therefore desirable to develop an occluder which addresses the above-mentioned shortcomings.

Disclosure of Invention

The present utility model is directed to solving the technical problems provided in the background art described above. The aim and the effect of the utility model are achieved by the following specific technical means:

the utility model provides a pipeline plugging device with a pressurizing device and a pipeline plugging structure, wherein the plugging device comprises a cylinder body and a piston rod which slides in the cylinder body and is controlled by hydraulic pressure, the pressurizing structure comprises a protection pipe and an oil transportation hard pipe, the protection pipe is fixedly arranged on the outer side of the cylinder body along the axial direction of the cylinder body, the oil transportation hard pipe is arranged on the protection pipe in a sliding manner, the oil transportation hard pipe is arranged in parallel with the piston rod, the lower end of the piston rod is fixed with the piston rod through a fixing block, and the piston rod drives the oil transportation hard pipe to synchronously move.

Preferably, the upper end and the lower end of the side face of the cylinder body are respectively provided with oil ports, the upper end of the cylinder body is in sealing connection with an upper end cover, the lower end of the cylinder body is in sealing connection with a lower end cover, a sealing sleeve is arranged between the lower end of the cylinder body and the piston rod, and sealing rings are arranged on the contact surfaces of the sealing sleeve, the cylinder body and the piston rod.

Preferably, the oil delivery hard pipe is slidably arranged through the lower end cover.

Preferably, the protective tube is a half-cut round tube.

Preferably, the plugging device below and even case sealing connection, the piston rod passes even case and connects the shutoff head, and defeated oil pipe passes even case setting, and is equipped with seal structure between even case, defeated oil pipe end-to-end connection have oil supply pipe, and oil supply pipe is connected with the shutoff head, even case below and clamp plate valve sealing connection, clamp plate valve below and tee bend pipe fitting sealing connection, tee bend pipe fitting sealing staple bolt is on the pipeline.

Preferably, a copper sleeve is arranged between the oil transportation hard pipe and the connecting box, sealing rings are arranged on the inner side and the outer side of the copper sleeve, a packing and a gland are sequentially arranged above the copper sleeve, and the gland is fastened on the connecting box by bolts to fix the packing and the copper sleeve.

Preferably, two sealing rings are arranged on the inner side and the outer side of the copper sleeve.

Preferably, the plugging head comprises a fixing mechanism, a connecting bracket, a plugging mechanism and a guiding mechanism, wherein one end of the connecting bracket is rotationally connected with the fixing mechanism, the other end of the connecting bracket is connected with the plugging mechanism, and the other side of the plugging mechanism is connected with the guiding mechanism; the guiding mechanism is triangular, and a first guiding wheel and a second guiding wheel are arranged at the left side and the lower top point; the plugging mechanism is cylindrical, the structure of the plugging mechanism is a support, the pressure oil, the locking ring and the plugging leather cup are sequentially arranged from inside to outside, an oil pipe joint is arranged on one side of the support and is connected with the pressure oil, and the support is fixedly connected with the connecting support.

Preferably, the fixing mechanism comprises a fixing frame, a supporting block and a jacking bolt, the jacking bolt is arranged on the side edge of the left lower end of the fixing frame, the original position of the bracket mechanism is fixed, the supporting block is fixed below the right side of the fixing frame, and the top end of the fixing frame is connected with the piston rod.

Preferably, the locking ring seals against pressurized oil, the locking ring being a movable ring-like device component.

Preferably, the connecting bracket rotates by taking a connector connected with the fixing frame as the center, the rotating range is from the lower part to the position of the jacking bolt, the supporting block supports and limits the rotating range, and the connecting bracket rotates clockwise to the position where the axis of the plugging mechanism is parallel to the vertical side of the fixing mechanism.

Preferably, the plugging leather cup is made of wear-resistant rubber materials, the oil conveying hard pipe is made of stainless steel pipes, and the oil supplying pipe is a pressure pipe with certain elasticity.

The beneficial effects are that:

the utility model adopts the oil delivery hard pipe to supply oil, and the oil delivery hard pipe is extended into the connecting box along with the piston rod when in use, so that the problems of incapability of judging and easiness in damage of the rubber pipe state are solved, and the oil delivery hard pipe can bear larger pressure, thereby being beneficial to the scene requiring high-pressure blocking, practical and convenient and being beneficial to improving the operation safety.

The utility model adopts the internal expansion plug type plugging head to effectively overcome the leakage caused by the fact that the traditional plug type plugging head plugs the spiral pipe and the pressure pipeline with the unsmooth and flat inner wall, and improves the safety, convenience and environmental protection of operation.

Description of the drawings:

FIG. 1 is a schematic cross-sectional view of an occluder of the present utility model.

Fig. 2 is a schematic cross-sectional structure of the pipe plugging structure before plugging.

Fig. 3 is a schematic cross-sectional structure of the plugging structure of the present utility model after plugging.

Fig. 4 is an enlarged schematic view of the sealing structure of the present utility model.

Fig. 5 is an enlarged schematic view of a portion of a pipe plugging structure according to the present utility model.

Fig. 6 shows the structure of the plugging head according to the utility model.

In fig. 1 to 6, the correspondence between the component names and the reference numerals is:

1-stopper, 101-cylinder, 102-piston rod, 103-fixed block, 104-protection tube, 105-oil delivery hard tube, 106-sealing sleeve, 107-lower end cover, 108-oil port, 1081-lower oil port, 1082-upper oil port, 109-upper end cover, 2-connecting box, 201-connecting box cover, 202-sealing structure, 2021-copper sleeve, 2022-sealing ring, 2023-packing, 2024-gland, 2025-bolt, 203-oil supply tube, 3-sealing head, 301-fixed mechanism, 3011-fixed frame, 3012-supporting block, 3013-jacking bolt, 302-connecting bracket, 303-sealing mechanism, 3031-bracket, 3032-pressure oil, 3033-, locking ring, 3034-sealing cup, 304-guide mechanism, 3041-guide wheel one, 3042-guide wheel two, 305-oil supply tube, 4-clamping valve, 5-three-way tube, 6-pipeline.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Example 1

As shown in fig. 1: the embodiment provides a take pressure device's pipeline plugging device and pipeline plugging structure, including plugging device 1 and pressure structure, plugging device 1 includes cylinder body 101 and slides in cylinder body 101 the piston rod 102 that receives hydraulic control, pressure structure includes pillar 104 and defeated oil hard tube 105, cylinder body 101 outside is provided with pillar 104 along cylinder body axial fixity, slide on the pillar 104 and be provided with defeated oil hard tube 105, defeated oil hard tube 105 and piston rod 102 parallel arrangement, the piston rod 102 lower extreme is fixed with piston rod 102 through being provided with fixed block 103, and drive defeated oil hard tube 105 synchronous motion by piston rod 102.

The upper end and the lower end of the side face of the cylinder body 101 are respectively provided with an oil port 108, the oil port 1081 comprises a lower oil port 1081 and an upper oil port 1082, the oil port 1082 is used for controlling hydraulic oil to enter and exit so as to push the piston rod 102 to move up and down, the upper end of the cylinder body 101 is connected with an upper end cover 109 in a sealing mode, the lower end of the cylinder body 101 is connected with a lower end cover 107 in a sealing mode, a sealing sleeve 106 is arranged between the lower end of the cylinder body 101 and the piston rod 102, sealing rings are arranged on contact surfaces of the sealing sleeve 106 and the cylinder body 101 and the piston rod 102, and the lower end cover 107 is used for fastening the cylinder body 101 and the sealing sleeve 106.

The oil delivery hard pipe 105 passes through the lower end cover 107 to be arranged in a sliding way, and the protection pipe 104 is a round pipe with a half cut, and plays a role in guiding and protecting.

The pressurizing structure further comprises a hydraulic device, wherein the upper end of the oil conveying hard pipe 105 is connected with the hydraulic device through a joint, the lower end of the oil conveying hard pipe 105 is connected with the blocking head 3 through a hose, the hydraulic device controls oil to enter and exit, and then the blocking head 3 is controlled to block.

Example 2

As shown in fig. 2-6, this embodiment provides a pipeline plugging device with a pressurizing device and a pipeline plugging structure, wherein an end cover below the plugging device 1 is in sealing connection with a connecting box 2, a piston rod 102 penetrates through the connecting box 2 to be connected with a plugging head 3, an oil transportation hard pipe 105 penetrates through the connecting box 2 to be arranged, a sealing structure 202 is arranged between the oil transportation hard pipe 105 and the connecting box 2, an oil supply pipe 305 is connected with the tail end of the oil transportation hard pipe 105, the oil supply pipe 305 is connected with the plugging head 3, the lower part of the connecting box 2 is in sealing connection with a clamping plate valve 4, the lower part of the clamping plate valve 4 is in sealing connection with a tee pipe fitting 5, and the tee pipe fitting 5 is sealed and hooped on a pipeline 6.

Further, the sealing structure 202 comprises a copper sleeve 2021, a sealing ring 2022, a packing 2023, a gland 2024 and a bolt 2025, wherein the copper sleeve 2021 is sleeved between the oil transportation hard pipe 105 and the connecting box 2, the sealing rings 2022 are arranged on the inner side and the outer side of the copper sleeve 2021, the packing 2023 and the gland 2024 are sequentially arranged above the copper sleeve 2021, the gland 2024 is fastened on the connecting box 2 by the bolt 2025, and the packing 2023 and the copper sleeve 2021 are fixed.

Furthermore, two sealing rings 2022 are arranged on the inner side and the outer side of the copper sleeve 2021, so that a better sealing effect is achieved.

Further, the plugging head 3 comprises a fixing mechanism 301, a connecting bracket 302, a plugging mechanism 303 and a guiding mechanism 304, wherein one end of the connecting bracket 302 is rotationally connected with the fixing mechanism 301, the other end of the connecting bracket is connected with the plugging mechanism 303, and the other side of the plugging mechanism 303 is connected with the guiding mechanism 304; the guide mechanism 304 is triangular, and a first guide wheel 3041 and a second guide wheel 3042 are arranged at the left side and the lower top point; the plugging mechanism 303 is cylindrical, the structure of the plugging mechanism 303 sequentially comprises a bracket 3031, pressure oil 3032, a locking ring 3033 and a plugging leather cup 3034 from inside to outside, an oil pipe joint 3035 is arranged on one side of the bracket 3031 and connected with the pressure oil 3032, the oil pipe joint 3035 is also connected with an oil delivery hard pipe 105 through an oil supply pipe 305, and the bracket 3031 is fixedly connected with a connecting bracket 202. When in use, the sealing leather cup 3034 is adhered to the inner wall of the pipeline 6 to be sealed, so that the pipeline 6 to be sealed plays a role in sealing.

Further, the fixing mechanism 301 comprises a fixing frame 3011, a supporting block 3012 and a jacking bolt 3013, the jacking bolt 3013 is arranged on the side edge of the left lower end of the fixing frame 3011, the original position of the support frame mechanism is fixed, the supporting block 3012 is fixed below the right side of the fixing frame 3011, the top end of the fixing frame 3011 is connected with the piston rod 102, and the supporting block is used for supporting and limiting the connecting support when the plugging head is in the initial position.

Further, locking ring 3033 seals against pressurized oil 3032, locking ring 3033 being a movable annular device component.

Further, the connecting bracket rotates around the connector connected with the fixing frame 3011, the rotating range is from the lower position to the top fixed bolt position, the supporting block supports and limits the rotating range, and the connecting bracket rotates clockwise to the position where the axis of the plugging mechanism is parallel to the vertical side of the fixing mechanism.

Further, the sealing cup 3034 is made of a wear-resistant rubber material, the oil delivery hard tube 105 is made of a stainless steel tube, and the oil supply tube 305 is a pressure tube with a certain elasticity.

Further, the guide wheel is a movable rotary rubber or hard plastic wheel, and plays a guiding role when in use, so that the blocking head 3 and the pipeline 6 are prevented from being directly rubbed.

When the plugging device is used, the plugging device 1, the connecting box 2, the plugging head 3, the clamping plate valve 4, the three-way pipe fitting 5 and the pipeline 6 are connected and assembled, the piston rod 102 of the plugging device 1 is controlled to move downwards, the plugging head 3 and the oil conveying hard pipe 105 are driven to synchronously move downwards, after the plugging head 3 reaches a plugging position, the hydraulic device box is started to supply oil to the oil conveying hard pipe 105, the locking ring 3033 expands outwards after being stressed, the plugging leather cup 3034 is unfolded, and then the pipeline 6 is propped against, so that the plugging is realized.

While embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a take pressure device's pipeline plugging device and pipeline plugging structure, includes plugging device and pressure structure, and the plugging device includes the cylinder body and slides in the cylinder body and receive hydraulic control's piston rod, its characterized in that: the pressurizing structure comprises a protection pipe and an oil conveying hard pipe, the protection pipe is fixedly arranged outside the cylinder body along the axial direction of the cylinder body, the oil conveying hard pipe is slidably arranged on the protection pipe, the oil conveying hard pipe and the piston rod are arranged in parallel, the lower end of the piston rod is fixed with the piston rod through a fixing block, and the piston rod drives the oil conveying hard pipe to synchronously move.

2. The pipeline plugging device with the pressurizing device and the pipeline plugging structure according to claim 1, wherein oil ports are respectively arranged at the upper end and the lower end of the side face of the cylinder body, the upper end of the cylinder body is connected with an upper end cover in a sealing manner, the lower end of the cylinder body is connected with a lower end cover in a sealing manner, a sealing sleeve is arranged between the lower end of the cylinder body and the piston rod, and sealing rings are respectively arranged at the contact surfaces of the sealing sleeve, the cylinder body and the piston rod.

3. The device and structure according to claim 2, wherein the oil delivery hard pipe is slidably disposed through the lower end cap.

4. The device and structure according to claim 1, wherein the protection tube is a half-cut round tube.

5. The pipeline plugging device with the pressurizing device and the pipeline plugging structure according to claim 1, wherein the lower portion of the plugging device is in sealing connection with a connecting box, the piston rod penetrates through the connecting box to be connected with a plugging head, the oil conveying hard pipe penetrates through the connecting box to be arranged, a sealing structure is arranged between the oil conveying hard pipe and the connecting box, the tail end of the oil conveying hard pipe is connected with an oil supply pipe, the oil supply pipe is connected with a plugging head, the lower portion of the connecting box is in sealing connection with a clamping plate valve, the lower portion of the clamping plate valve is in sealing connection with a tee pipe fitting, and the tee pipe fitting is sealed and hooped on a pipeline.

6. The pipe plugging device with the pressurizing device and the pipe plugging structure according to claim 5, wherein a copper sleeve is arranged between the oil transportation hard pipe and the connecting box, sealing rings are arranged on the inner side and the outer side of the copper sleeve, a packing and a gland are sequentially arranged above the copper sleeve, a bolt is arranged on the gland, and the bolt fastens the gland to the connecting box to fix the packing and the copper sleeve.

7. The device and structure according to claim 6, wherein two sealing rings are provided on the inner and outer sides of the copper sleeve.

8. The device and structure according to claim 5, wherein the plugging head comprises a fixing mechanism, a connecting bracket, a plugging mechanism and a guiding mechanism, one end of the connecting bracket is rotatably connected with the fixing mechanism, the other end of the connecting bracket is connected with the plugging mechanism, and the other end of the plugging mechanism is connected with the guiding mechanism; the guide mechanism is triangular, and a first guide wheel and a second guide wheel are arranged at the left side and the lower top point; the plugging mechanism is cylindrical, the plugging mechanism structure sequentially comprises a support, pressure oil, a locking ring and a plugging leather cup from inside to outside, an oil pipe joint is arranged on one side of the support and is connected with the pressure oil, and the support is fixedly connected with a connecting support.

9. The device and structure according to claim 8, wherein the fixing means comprises a fixing frame, a supporting block and a jacking bolt, the jacking bolt is mounted on a side edge of a left lower end of the fixing frame, the original orientation of the support means is fixed, the supporting block is fixed below the fixing frame, and the top end of the fixing frame is connected with the piston rod.

10. The device and structure according to claim 8, wherein the locking ring seals the pressurized oil, and the locking ring is a movable ring-like device member.