CN113872141B - Electric power pipeline plugging device - Google Patents

Abstract

The invention relates to an electric power pipeline plugging device in the technical field of pipeline fittings, which comprises a sealing disc, wherein a cable fastener is arranged on the surface of the sealing disc corresponding to an electric power pipeline, a plurality of concentric sealing rings with different diameters are arranged on the periphery of the cable fastener, a plurality of locking pieces matched with the electric power pipeline are arranged on the side wall of the sealing disc along the circumferential direction, and the locking pieces can be adjusted along the radial direction of the sealing disc and the axial direction of the electric power pipeline. The adjustable cable plugging device is reasonable in structure and simple to operate, the plugging device is suitable for power pipelines with different diameters by arranging the adjustable locking piece and the concentric sealing rings, different cables can be fastened by arranging the elastic belt on the cable fastening piece and the left and right hoops, the overall application range is wide, the sealing effect is good, and the cable plugging device is not easy to loosen after being used for a long time; all parts are mutually matched, when maintenance is needed, the tightness of the locking piece, the sealing ring and the left and right hoops can be flexibly adjusted according to the field condition, the integral replacement is not needed, and the cost is reduced.

Description

A power pipeline blocker

technical field

The invention relates to the technical field of pipeline fittings, in particular to a plugging device for electric pipelines.

Background technique

The power pipe blocker is a sealing device installed in the power cable duct, generally made of rubber, and the rubber expands inward and outward after being stressed (or air pressure), filling the section between the cable duct and the cable, thereby sealing the cable Secures and achieves a tight seal on the pipe. It has changed the method of using fireproof mud, cement, yellow sand, etc. to seal the pipe mouth in the traditional technology, and it is convenient to disassemble the pipe mouth for emergency repair and maintenance. The current occluder also uses flexible seals to seal the pipe. Put the flexible seal into the cable tube, and then tighten the bolts of the connector to force the flexible seal to deform. The inner circumference of the flexible seal is close to the surface of the cable and the outer circumference of the flexible seal is close to the inner wall of the cable tube. A ring-shaped sealing surface is formed between the pipe and the cable for sealing. There are many problems in this sealer. For example, when the bolts of the connecting parts are tightened to deform the flexible seal, the flexible seal cannot be completely deformed, and gaps will appear locally. , so that there is a defect that the annular sealing surface does not fit tightly with the outer wall of the pipe, resulting in poor sealing, and the connection between the connector and the flexible seal will also have a problem of poor sealing, or the flexible seal is not filled The cross-section between the pipe and the cable fails to fix the cable and achieve the sealing of the pipe, resulting in poor sealing effect of the pipe occluder, poor sealing performance, and easy loosening after long-term use; in addition, for different pipe diameters Pipelines require occluders of different sizes and models, and the scope of application is small. When the occluder is aged after a long period of use, it needs to be replaced with a new occluder, which is costly.

Contents of the invention

Aiming at the above-mentioned defects in the prior art, the present invention provides a power pipeline occluder, which includes a sealing disc, a cable fastener is provided on the surface of the sealing disk corresponding to the power pipeline, and a cable fastener is arranged on the periphery of the cable fastener. There are a plurality of concentric sealing rings with different diameters. The side wall of the sealing disc is provided with a plurality of locking parts that cooperate with the power pipeline along the circumference. to adjust.

Preferably, the cable fastener includes a left hoop and a right hoop, one end of the left hoop and the right hoop are hinged through a hinge shaft, one end of the hinge shaft is connected to the sealing disc, and the left A plurality of fixing holes are distributed on the other end of the hoop, and a plurality of fixing blocks matching the fixing holes are arranged on the other end of the right hoop, and a section of elastic belt is provided on the left hoop and the right hoop.

Preferably, the elastic band is a rubber band.

Preferably, the center of the sealing ring is located on the central axis of the power pipeline, each sealing ring is located in a corresponding concave ring on the sealing disc, a rubber sealing ring is fixed at one end of the sealing ring corresponding to the power pipeline, and the other end of the sealing ring is provided with A plurality of threaded rods are evenly distributed along the circumferential direction of the sealing ring, one end of the threaded rods is rotatably connected to the sealing ring through a bearing, the other end of the threaded rods runs through the sealing disc and the end face of the threaded rods There is a cross spline on the top, and the threaded rod one is threadedly matched with the sealing disc.

Preferably, the number of said threaded rod 1 is not less than three.

Preferably, the locking member includes a rod sleeve, threaded rod 2, threaded rod 3 and a locking block; one end of the rod sleeve is fixedly connected to the side of the sealing disc, and a bump is fixed on the inner wall of the rod sleeve, and the rod The other end of the sleeve is rotatably connected with a knob. The inner wall of the knob is provided with an internal thread matching the threaded rod two. One end of the threaded rod two passes through the knob and then extends into the rod sleeve. The groove that the bump matches, one end of the bump is located in the groove, the other end of the threaded rod two is fixedly connected with a connecting block, the connecting block is provided with a threaded hole, and one end of the threaded rod three is fixed with a rotating handle, the other end of the threaded rod three passes through the threaded hole and then rotates to be connected with a horizontal connecting rod, and one end of the connecting rod is connected with the locking briquetting block.

Preferably, a rubber pad is provided on the surface of the locking block corresponding to the power pipeline.

The present invention also includes other components capable of making a power pipeline blocker normally used, and the like are conventional technical means in the art. In addition, the devices or components that are not limited in the present invention all adopt conventional technical means in the field, such as rubber belts, rubber sealing rings, cross splines, rubber pads, etc. are all conventional equipment in the field.

The working principle of the present invention is that, when in use, the left and right hoops are first opened, and then the sealing disc is placed close to the end of the power pipeline, and the cables in the power pipeline are put into the left and right hoops, and according to the position of the cables, Fasten the left and right hoops in thick and thin, that is, snap the fixing block of the right hoop into the fixing hole of the left hoop, so that the left and right hoops can tightly fix the cables, and then adjust the locking according to the diameter of the power pipeline The sealing disc and the electric pipeline are fixed by a piece. The specific operation is as follows: turn the knob, the second threaded rod does not rotate with the knob under the action of the bump and the groove, but stretches along the rod sleeve, the second threaded rod stretches to drive the connecting block to move, and the third threaded rod Drive the locking block to move to the corresponding position of the connection edge of the end face of the power pipeline, turn the turning handle of the threaded rod three, so that the locking block is pressed down and closely contacts the connection edge of the end face of the power pipeline; finally, according to the diameter of the power pipeline, Select a suitable matching sealing ring on the sealing disc, and use a tool (such as a screwdriver) to turn the multiple threaded rods corresponding to the sealing ring one by one, so that the rubber sealing ring of the sealing ring is closely combined with the end face of the power pipeline, and the power pipeline can be completed. Face seals.

When the occluder is loosened or maintained, you can reverse the operation to open the locking part, check the fastening of the left and right hoops to the cable, if it is loose, adjust the matching connection between the fixing block and the fixing hole, so that The left hoop and the right hoop are further tightened; if there is no looseness, just turn the turning handle to adjust the locking block of the locking piece, and turn the threaded rod to move the corresponding sealing ring towards the power pipeline to strengthen the sealing effect of the rubber sealing ring , when the end face of the power pipeline corresponds to multiple sealing rings, the multiple sealing rings can be in contact with the end face of the power pipeline to form multiple seals, further improving the sealing effect.

The beneficial effect of the present invention is that the structure is reasonable and the operation is simple. The occluder can adapt to power pipelines of different diameters through the setting of the adjustable locking member and the setting of multiple concentric sealing rings. The setting of the belt and the left and right hoops can fasten different cables. The overall application range is wide, the sealing effect is good, the sealing effect is improved, and it is not easy to loose after long-term use; According to the site conditions, the tightness of the locking parts, sealing rings and left and right hoops can be flexibly adjusted, without the need to replace them as a whole, which improves the service life, reduces costs, improves efficiency, and further ensures the sealing effect.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic structural diagram of the cable fastener in Fig. 1;

Fig. 3 is a bottom view of the sealing disc in Fig. 1;

Fig. 4 is a top view of the sealing disc in Fig. 1;

Fig. 5 is a schematic structural view of the sealing ring in Fig. 1;

Fig. 6 is an enlarged view of A in Fig. 1 .

In the figure: 1. Sealing plate, 2. Threaded rod 1, 3. Cross spline, 4. Right hoop, 5. Left hoop, 6. Fixing block, 7. Fixing hole, 8. Elastic belt, 9. Lock Compression block, 10. connecting rod, 11. threaded rod three, 12. connecting block, 13. turning handle, 14. rod sleeve, 15. knob, 16. threaded rod two, 17. rubber sealing ring, 18. groove , 19, bump, 20, hinge shaft, 21, sealing ring, 22, concave ring, 23, connecting edge.

Detailed ways

The present invention will be clearly described below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not as a limitation to the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present invention Inside.

Example

As shown in Figures 1-6, the present invention provides a power pipeline occluder, including a sealing disc 1, a cable fastener is provided on the surface of the sealing disk 1 corresponding to the power pipeline, and the periphery of the cable fastener is A plurality of concentric sealing rings 21 with different diameters are provided. The side wall of the sealing disc 1 is provided with a plurality of locking parts which cooperate with the power pipeline along the circumference. The locking parts can be arranged along the radial direction and Axial adjustment of electrical conduits.

The cable fastener includes a left hoop 5 and a right hoop 4, one end of the left hoop 5 and the right hoop 4 are hinged through a hinge shaft 20, and one end of the hinge shaft 20 is connected to the sealing disc 1 , a plurality of fixing holes 7 are distributed on the other end of the left hoop 5, and a plurality of fixing blocks 6 matching the fixing holes 7 are arranged on the other end of the right hoop 4, the left hoop 5 and the right hoop 4 are all provided with a section of elastic band 8.

The elastic band 8 is a rubber band.

The center of circle of the sealing ring 21 is located on the central axis of the power pipeline, and each sealing ring 21 is located in the corresponding concave ring 22 on the sealing disc 1, and the end of the sealing ring 21 corresponding to the power pipeline is fixed with a rubber sealing ring 17, and the sealing ring 21 The other end is provided with a plurality of threaded rods-2, which are evenly distributed along the circumferential direction of the seal ring 21, one end of the threaded rod-2 is rotationally connected with the seal ring 21 through a bearing, and the other end of the threaded rod-2 One end runs through the sealing disk 1 and a cross spline 3 is arranged on the end surface of the threaded rod one 2, and the threaded rod one 2 is threadedly engaged with the sealing disk 1 .

The number of threaded rods-2 is not less than three, so as to ensure that the rubber sealing ring 17 is fully in close contact with the end face of the power pipeline for sealing.

The locking member includes a rod sleeve 14, a threaded rod two 16, a threaded rod three 11 and a locking briquetting block 9; one end of the rod sleeve 14 is fixedly connected to the side of the sealing disc 1, and the inner wall of the rod sleeve 14 is fixed with Projection 19, the other end of rod cover 14 is connected with knob 15 in rotation, and the inner wall of described knob 15 is provided with the inner thread that matches with threaded rod two 16, and one end of described threaded rod two 16 passes through knob 15 and stretches into In the rod sleeve 14, the threaded rod 16 is provided with a groove 18 cooperating with the projection 19, and one end of the projection 19 is located in the groove 18, and the length of the groove 18 is parallel to the length of the threaded rod 16, and the thread The other end of rod two 16 is fixedly connected with connecting block 12, and described connecting block 12 is provided with threaded hole, and one end of described threaded rod three 11 is fixed with turning handle 13, and the other end of threaded rod three 11 passes through threaded hole The bearing is rotatably connected with one end of the horizontal connecting rod 10 , and the other end of the connecting rod 10 is connected with the locking pressing block 9 .

The surface of the locking pressing block 9 corresponding to the power pipeline is provided with a rubber pad, which further improves the locking effect and reduces the wear of components.

When in use, first open the left hoop 5 and the right hoop 4, then close the sealing disc 1 to the end of the power pipeline, put the cables in the power pipeline into the left and right hoops, and fasten the left and right hoops according to the thickness of the cables. The hoop 5 and the right hoop 4, that is, the fixing block 6 of the right hoop 4 is snapped into the fixing hole 7 of the left hoop 5, so that the left and right hoops can tightly fix the cable, and then adjust according to the diameter of the power pipeline. The locking piece fixes the sealing disc 1 and the power pipeline. The specific operation is: turn the knob 15, the threaded rod 16 does not rotate with the knob 15 under the action of the bump 19 and the groove 18, but stretches along the rod sleeve 14, and the threaded rod 2 16 telescopically drives the connecting block 12 to move, and the threaded rod three 11 drives the locking block 9 to move to the corresponding position on the connection edge 23 of the end face of the power pipeline, and turns the turning handle 13 of the threaded rod three 11 to make the locking block 9 press down and The connection of the end face of the power pipeline is in close contact with 23; finally, according to the diameter of the power pipeline, select a suitable matching sealing ring 21 on the sealing disc 1, and use a tool (such as a screwdriver) to turn the plurality of threaded rods corresponding to the sealing ring 21 one by one 2 , so that the rubber sealing ring 17 of the sealing ring 21 is closely combined with the end face of the power pipeline, the end face sealing of the power pipeline can be completed.

When the occluder becomes loose or requires maintenance, reverse operation to open the locking member, check the fastening of the left hoop 5 and right hoop 4 to the cables, if loose, adjust the fixing block 6 and the fixing hole 7 The matching connection of the left hoop 5 and the right hoop 4 is further tightened; if there is no looseness, only turn the turning handle 13 to adjust the locking pressure block 9 of the locking member, and turn the threaded rod 12 to seal the corresponding sealing ring 21 The sealing effect of the rubber sealing ring 17 is strengthened towards the power pipeline. When the end surface of the power pipeline corresponds to multiple sealing rings 21, the multiple sealing rings 21 can be in contact with the end surface of the power pipeline to form multiple seals, further improving the sealing effect.

While embodiments of the present invention have been described above, the foregoing description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and alterations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (4)

1. An electric power pipeline plugging device comprises a sealing disc, and is characterized in that: the cable sealing device comprises a sealing disc, a plurality of concentric sealing rings, a plurality of locking pieces and a plurality of sealing rings, wherein the surface of the sealing disc, corresponding to a power pipeline, is provided with a cable fastener, the periphery of the cable fastener is provided with the concentric sealing rings with different diameters, the side wall of the sealing disc is provided with the locking pieces matched with the power pipeline along the circumferential direction, and the locking pieces can be adjusted along the radial direction of the sealing disc and the axial direction of the power pipeline;

the cable fastener comprises a left anchor ear and a right anchor ear, one ends of the left anchor ear and the right anchor ear are hinged through a hinge shaft, one end of the hinge shaft is connected with the sealing disc, a plurality of fixing holes are distributed in the other end of the left anchor ear, a plurality of fixing blocks matched with the fixing holes are arranged on the other end of the right anchor ear, and a section of elastic belt is arranged on each of the left anchor ear and the right anchor ear;

the center of the sealing ring is located on the central axis of the electric power pipeline, each sealing ring is located in a corresponding concave ring on the sealing disc, a rubber sealing ring is fixed at one end of each sealing ring, which corresponds to the electric power pipeline, a plurality of first threaded rods are arranged at the other end of each sealing ring, the plurality of first threaded rods are uniformly distributed along the circumferential direction of each sealing ring, one end of each first threaded rod is rotatably connected with the corresponding sealing ring through a bearing, the other end of each first threaded rod penetrates through the corresponding sealing disc, a cross spline is arranged on the end face of each first threaded rod, and the first threaded rods are in threaded fit with the corresponding sealing discs;

the locking piece comprises a rod sleeve, a second threaded rod, a third threaded rod and a locking pressing block; the one end of pole cover and the side fixed connection who seals the dish are fixed with the lug on the inner wall of pole cover, and the other end of pole cover rotates and is connected with the knob, be equipped with the internal thread that matches with two threaded rods on the inner wall of knob, in the one end of two threaded rods passed the knob and stretched into the pole cover, be equipped with on two threaded rods with lug complex recess, the one end of lug is located the recess, the other end fixedly connected with connecting block of two threaded rods, be equipped with the screw hole on the connecting block, the one end of three threaded rods is fixed with the turning handle, and the other end of three threaded rods runs through and rotates behind the screw hole and be connected with the horizontally connecting rod, the one end and the locking briquetting of connecting rod are connected.

2. The power conduit closure of claim 1, wherein: the elastic belt is a rubber belt.

3. The power conduit closure of claim 1, wherein: the number of the first threaded rods is not less than three.

4. The power conduit closure of claim 1, wherein: and a rubber pad is arranged on the surface of the locking pressing block corresponding to the power pipeline.

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