CN212080509U

CN212080509U - Pipeline plugging head that leakproofness is good

Info

Publication number: CN212080509U
Application number: CN202020395590.3U
Authority: CN
Inventors: 郭风海
Original assignee: Jiangsu Xinji Anticorrosive Pipe Valve Co ltd
Current assignee: Jiangsu Xinji Anticorrosive Pipe Valve Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-12-04
Anticipated expiration: 2030-03-25

Abstract

The utility model discloses a pipeline plugging head with good sealing performance, which belongs to the technical field of pipeline plugging, and comprises a pipeline, wherein the outer end of the pipeline is fixedly connected with a connector, the upper end of the connector is connected with a sealing plate through bolt threads, the lower end of the sealing plate is fixedly connected with an extending column and a plugging column, the inner end of the plugging column is fixedly connected with the outer end of the extending column, a chute is arranged in the extending column, a push rod is connected in the chute in a sliding way, the push rod penetrates through the sealing plate and extends to the outer side of the sealing plate, the lower end of the extending column is fixedly connected with an annular baffle, the lower end of the push rod is rotatably connected with a pair of connecting blocks, one end of the pair of connecting blocks, which is far away from each other, is fixedly connected with a rubber plugging block, a working cavity is arranged in the rubber plugging block, a compression, the sealing effect is good, the operation is simple, and the disassembly is easy, so that the construction efficiency is improved.

Description

Pipeline plugging head that leakproofness is good

Technical Field

The utility model relates to a pipeline shutoff technical field, more specifically say, relate to a pipeline shutoff head that leakproofness is good.

Background

A pipeline is a device for transporting a gas, liquid or fluid with solid particles, connected by pipes, pipe couplings, valves, etc. Generally, a fluid is pressurized by a blower, a compressor, a pump, a boiler, etc., and then flows from a high pressure portion to a low pressure portion of a pipe, or is transported by the pressure or gravity of the fluid itself. The use of pipelines is very widespread, mainly in water supply, drainage, heating, gas supply, long-distance oil and gas delivery, agricultural irrigation, hydraulic engineering and various industrial installations.

The pipeline is an important part of urban infrastructure construction, it has high efficiency and convenience in the aspect of transporting oil, water, gas, etc., it is closely related with people's life, along with the massively change of pipeline laying, pipeline trouble also takes place occasionally, in the municipal administration that involves in the urban piping engineering at present, to needing the pipeline of shutoff, often place the shutoff head in the pipeline and carry out the shutoff, present plugging device, generally directly use the shutoff steel sheet to carry out the shutoff to the pipeline, the shutoff effect is poor, it is difficult to reach the requirement of pipeline to the leakproofness, lead to the pipeline of shutoff to appear leaking once more, cause the phenomenon of doing over again, influenced the normal use of pipeline greatly, increased the maintenance cost.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a pipeline shutoff head that leakproofness is good, it can realize carrying out the in-process of shutoff to the pipeline, and is sealed effectual, easy operation dismantles easily to improve the efficiency of construction.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A pipeline plugging head with good sealing performance comprises a pipeline, wherein the outer end of the pipeline is fixedly connected with a connector, the upper end of the connector is connected with a sealing plate through a bolt thread, the lower end of the sealing plate is fixedly connected with an extending column and a plugging column, the inner end of the plugging column is fixedly connected with the outer end of the extending column, a chute is formed in the extending column, a push rod is connected in the chute in a sliding mode, the push rod penetrates through the sealing plate and extends to the outer side of the sealing plate, the lower end of the extending column is fixedly connected with an annular baffle, the lower end of the push rod is rotatably connected with a pair of connecting blocks, one end, far away from each other, of the pair of connecting blocks is fixedly connected with a rubber plugging block, a working cavity is formed in the rubber plugging block, a compression spring is fixedly connected between the left inner wall and the right inner, the operation is simple and the disassembly is easy, thereby improving the construction efficiency.

Further, the rubber gasket has been placed between closing plate and the connector, be interference fit between rubber gasket and the pipeline, increase the seal of pipeline upper end through the rubber gasket, reduce the not hard up possibility of bolt simultaneously.

Further, fixedly connected with telescopic link between the inner wall about the working chamber, the telescopic link is located compression spring inboard, and the telescopic link plays supplementary limiting displacement to compression spring, reduces compression spring's non-work to the displacement, supports rubber shutoff piece simultaneously.

Furthermore, fixedly connected with sealed axle sleeve on the closing plate, sealed axle sleeve and push rod phase-match restrict the displacement of push rod in vertical direction through sealed axle sleeve, increase the seal between push rod and the closing plate simultaneously.

Further, the radius of the rubber plugging block is slightly larger than the inner radius of the pipeline, the lower end of the rubber plugging block is provided with a round angle, the radius of the round angle is 1-2cm, effective plugging is carried out through the matching between a pair of rubber plugging blocks, and relative movement between the rubber plugging blocks and the inner wall of the pipeline is facilitated through the round angle.

Further, the upper end fixedly connected with protection piece of rubber shutoff piece, the protection piece is corresponding with the ring baffle, makes the ring baffle carry on spacingly to the rubber shutoff piece through the protection piece and makes the rubber shutoff piece effectively return just in the horizontal direction, is returning the mechanical damage of just in-process reduction ring baffle to the rubber shutoff piece simultaneously.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme can realize carrying out the in-process of shutoff to the pipeline, and is sealed effectual, and easy operation dismantles easily to improve the efficiency of construction.

(2) The rubber gasket has been placed between closing plate and the connector, is interference fit between rubber gasket and the pipeline, increases the seal of pipeline upper end through the rubber gasket, reduces the not hard up possibility of bolt simultaneously.

(3) Fixedly connected with telescopic link between the inner wall about the working chamber, the telescopic link is located compression spring inboard, and the telescopic link plays supplementary limiting displacement to compression spring, reduces compression spring's non-work to the displacement, supports rubber shutoff piece simultaneously.

(4) Fixedly connected with seal shaft sleeve on the closing plate, seal shaft sleeve and push rod phase-match are injectd the displacement of push rod in vertical direction through seal shaft sleeve, increase the leakproofness between push rod and the closing plate simultaneously.

(5) The radius of the rubber plugging block is slightly larger than the inner radius of the pipeline, the lower end of the rubber plugging block is provided with a fillet, the radius of the fillet is 1-2cm, effective plugging is carried out through the matching between a pair of rubber plugging blocks, and the fillet is convenient for relative movement between the rubber plugging block and the inner wall of the pipeline.

(6) The upper end fixedly connected with protection piece of rubber shutoff piece, the protection piece is corresponding with the ring baffle, makes the ring baffle carry on spacingly to rubber shutoff piece through the protection piece and makes rubber shutoff piece effectively return just in the horizontal direction, reduces the mechanical damage of ring baffle to rubber shutoff piece at the return just in-process simultaneously.

Drawings

Fig. 1 is a schematic structural view before plugging of the present invention;

FIG. 2 is a schematic view of the plugging structure of the present invention;

fig. 3 is a schematic structural view of the rubber plugging block of the present invention.

The reference numbers in the figures illustrate:

1 pipeline, 2 connectors, 3 sealing plates, 4 rubber gaskets, 5 bolts, 6 extending columns, 7 push rods, 8 sliding grooves, 9 annular baffles, 10 connecting blocks, 11 rubber plugging blocks, 12 telescopic rods, 13 compression springs and 14 plugging columns.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

please refer to fig. 1-3, a pipeline plugging head with good sealing performance, which comprises a pipeline 1, an outer end of the pipeline 1 is fixedly connected with a connector 2, an upper end of the connector 2 is connected with a sealing plate 3 through a bolt 5, a lower end of the sealing plate 3 is fixedly connected with an extending column 6 and a plugging column 14, an inner end of the plugging column 14 is fixedly connected with an outer end of the extending column 6, an inner opening of the extending column 6 is provided with a chute 8, the chute 8 is internally and slidably connected with a push rod 7, the push rod 7 penetrates through the sealing plate 3 and extends to the outer side of the sealing plate 3, a lower end of the extending column 6 is fixedly connected with an annular baffle 9, a lower end of the push rod 7 is rotatably connected with a pair of connecting blocks 10, one end of the pair of connecting blocks 10, which is far away from each other, is fixedly connected with a.

Referring to fig. 1-2, a rubber gasket 4 is placed between a sealing plate 3 and a connector 2, the rubber gasket 4 is in interference fit with a pipeline 1, the tightness of the upper end of the pipeline 1 is improved by the rubber gasket 4, the possibility of loosening of a bolt 5 is reduced, an expansion rod 12 is fixedly connected between the left inner wall and the right inner wall of a working cavity, the expansion rod 12 is positioned at the inner side of a compression spring 13, the expansion rod 12 plays an auxiliary limiting role on the compression spring 13, the non-working displacement of the compression spring 13 is reduced, a rubber plugging block 11 is supported at the same time, a sealing shaft sleeve is fixedly connected on the sealing plate 3 and matched with a push rod 7, the displacement of the push rod 7 in the vertical direction is limited by the sealing shaft sleeve, the tightness between the push rod 7 and the sealing plate 3 is improved at the same time, the radius of the rubber plugging block 11 is slightly, the radius of fillet is 1-2cm, carry out effective shutoff through the cooperation between a pair of rubber shutoff piece 11, make things convenient for the relative motion between rubber shutoff piece 11 and the 1 inner wall of pipeline through the fillet, please refer to fig. 3, the upper end fixedly connected with protection piece of rubber shutoff piece 11, the protection piece is corresponding with annular baffle 9, make annular baffle 9 carry out spacing messenger rubber shutoff piece 11 through the protection piece and effectively return at the horizontal direction to rubber shutoff piece 11, reduce the mechanical damage of annular baffle 9 to rubber shutoff piece 11 at the return in-process simultaneously.

In use, referring to fig. 1-3, a technician connects the sealing plate 3 with the connector 2 by the bolt 5, at this time, the rubber plugging block 11 is located in the pipeline 1, and the plugging column 14 is matched with the inner wall of the pipeline 1 for sealing and plugging, then the technician pulls the push rod 7 upwards, the push rod 7 drives the rubber plugging block 11 to move upwards, while the annular baffle 9 applies a downward force to the end of the pair of rubber blocks 11 that are close to each other, under the expansion and contraction action of the compression spring 13 and the expansion rod 12 and the elastic force action of the rubber plugging block 11, so that the rubber plugging blocks 11 are horizontally aligned to finish the airtight plugging of the pipeline 1, further increase the airtightness of the plugging of the pipeline 1, compared with the prior art, the utility model discloses can realize carrying out the in-process of shutoff to the pipeline, it is sealed effectual, easy operation dismantles easily to improve the efficiency of construction.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a pipeline shutoff head that leakproofness is good, includes pipeline (1), its characterized in that: the outer end of the pipeline (1) is fixedly connected with a connector (2), the upper end of the connector (2) is in threaded connection with a sealing plate (3) through a bolt (5), the lower end of the sealing plate (3) is fixedly connected with a stretching column (6) and a plugging column (14), the inner end of the plugging column (14) is fixedly connected with the outer end of the stretching column (6), a sliding groove (8) is formed in the stretching column (6), a push rod (7) is connected in the sliding groove (8) in a sliding manner, the push rod (7) penetrates through the sealing plate (3) and extends to the outer side of the sealing plate (3), an annular baffle plate (9) is fixedly connected with the lower end of the stretching column (6), a pair of connecting blocks (10) is rotatably connected with the lower end of the push rod (7), a pair of rubber plugging blocks (11) are fixedly connected with one end, far away from each other, of the connecting blocks (10), and, and a compression spring (13) is fixedly connected between the left inner wall and the right inner wall of the working cavity.

2. The pipe plugging head with good sealing performance as claimed in claim 1, wherein: rubber gasket (4) have been placed between closing plate (3) and connector (2), be interference fit between rubber gasket (4) and pipeline (1).

3. The pipe plugging head with good sealing performance as claimed in claim 1, wherein: the telescopic rod (12) is fixedly connected between the left inner wall and the right inner wall of the working cavity, and the telescopic rod (12) is located on the inner side of the compression spring (13).

4. The pipe plugging head with good sealing performance as claimed in claim 1, wherein: and a sealing shaft sleeve is fixedly connected to the sealing plate (3) and is matched with the push rod (7).

5. The pipe plugging head with good sealing performance as claimed in claim 1, wherein: the radius of the rubber plugging block (11) is slightly larger than the inner radius of the pipeline (1), the lower end of the rubber plugging block (11) is provided with a fillet, and the radius of the fillet is 1-2 cm.

6. The pipe plugging head with good sealing performance as claimed in claim 1, wherein: the upper end fixedly connected with protection piece of rubber shutoff piece (11), the protection piece is corresponding with ring baffle (9).