CN206545755U - A kind of pipe stopper - Google Patents

Abstract

The utility model relates to the technical field of pipelines, in particular to a pipeline plug, which has a body, an upper pressing piece, a lower pressing piece, bolts and nuts, the body is in the shape of a truncated cone, and the bolts pass through the lower pressing piece, the main body and The upper pressing piece is fixed by a nut, the cap of the bolt is located at the small-diameter end of the body, and the nut is located at the large-diameter end of the body, and the body is made of elastic material. The utility model drives the upper pressing piece and the lower pressing piece to squeeze the main body axially by tightening the nut, so that the main body produces radial expansion to achieve the purpose of blocking the pipeline, and only needs to loosen the nut when taking it out, releasing the axial pressure The compacting force, the body no longer expands and the volume shrinks and can be easily taken out. The plug can be used many times, which not only greatly saves the cost, but also does not need to be taken out in a destructive way without leaving broken pieces, avoiding safety hazards.

Description

a pipe plug

technical field

The utility model relates to the technical field of pipelines, in particular to a pipeline plug.

Background technique

When overhauling the pipeline, it is often necessary to use a plug to block the nozzle. The traditional plug only achieves the purpose of blocking by pressing, but it is very inconvenient to take out the plug after the inspection is over, and even the plug needs to be removed. After the plug is broken, many plugs can only be used once, which greatly increases the maintenance cost. In the special environment of the pipeline, it is difficult to remove all the broken parts, and the broken parts remain in the pipeline, which will cause certain safety hazards.

Contents of the invention

The purpose of the utility model is to provide a pipe plug that can be used multiple times, is convenient to take out, saves cost, and does not produce residual broken objects.

In order to achieve the above object, a technical solution of the utility model is: a pipe plug, the improvement of which is that it has a main body, an upper pressing piece, a lower pressing piece, bolts and nuts, the main body is in the shape of a truncated cone, and the bolt Pass through the lower pressing piece, the main body and the upper pressing piece in turn, and are fixed by nuts, the cap of the bolt is located at the small diameter end of the main body, the nut is located at the large diameter end of the main body, and the main body is made of elastic material.

In the above technical solution, the material of the body is rubber or silica gel.

In the above technical solution, the threaded end surface of the bolt has an axial inner screw hole.

In the above technical solution, the outer diameter Φ ₁ of the large-diameter end of the body and the outer diameter Φ ₂ of the upper pressing piece satisfy the relational expression 0.5Φ ₁ ≤ Φ ₂ <Φ ₁ , the outer diameter Φ ₃ and the outer diameter of the small-diameter end of the body The outer diameter Φ ₄ of the lower pressing tablet satisfies the relationship 0.5Φ ₃ ≤ Φ ₄ <Φ ₃ .

In order to achieve the above purpose, another technical solution of the present utility model is: a pipe plug, which has a main body, an upper pressing piece, a lower pressing piece, bolts and nuts, the main body is cylindrical, and the outer peripheral surface of the main body is There are several annular grooves and annular bosses. The bolts pass through the lower pressing piece, the main body and the upper pressing piece in sequence, and are fixed by nuts. The main body is made of elastic material.

In the above technical solution, the material of the body is rubber or silica gel.

In the above technical solution, the threaded end surface of the bolt has an axial inner screw hole.

In the above technical solution, the cross section of the annular groove is a rectangular groove or a trapezoidal groove or an arc-shaped groove.

In the above technical solution, the body has two annular grooves and three annular protrusions.

In the above technical solution, the cylindrical outer diameter Φ ₅ of the main body, the outer diameter Φ ₆ of the upper pressing piece and the outer diameter Φ ₇ of the lower pressing piece satisfy the relational formula 0.5Φ ₅ ≤Φ ₆ <Φ ₅ , 0.5Φ ₅ ≤ Φ ₇ <Φ ₅ .

The advantage of the utility model is: due to the body, the upper pressing piece, the lower pressing piece, the bolt and the nut, the upper pressing piece and the lower pressing piece can be driven to squeeze the main body axially by tightening the nut, so that the main body produces radial expansion To achieve the purpose of blocking the pipeline, when taking it out, you only need to loosen the nut to release the axial compression force, the body will no longer expand and the volume will shrink, and you can take it out conveniently. The plug can be used many times, which not only greatly saves the cost , and it is not necessary to take it out in a destructive way without leaving broken pieces, which avoids potential safety hazards.

Description of drawings

Fig. 1 is the schematic front view of the first embodiment of the utility model;

Figure 2 is a schematic bottom view of Figure 1;

Fig. 3 is a schematic diagram of the use state of the first embodiment of the present invention;

Fig. 4 is the schematic front view of the second embodiment of the utility model;

Fig. 5 is a schematic sectional view of A-A of Fig. 4;

FIG. 6 is a schematic cross-sectional view along line B-B of FIG. 4 .

detailed description

Below in conjunction with accompanying drawing and given embodiment, the utility model is described further.

Embodiment one:

As shown in Figures 1 to 3, a pipe plug has a body 1, an upper pressing piece 2, a lower pressing piece 3, bolts 4 and nuts 5, the body 1 is in the shape of a frustum of a cone, and the bolts 4 pass through the lower The pressing piece 3, the main body 1 and the upper pressing piece 2 are fixed by a nut 5, the cap of the bolt 4 is located at the small diameter end of the main body 1, and the nut 5 is located at the large diameter end of the main body 1.

The body 1 is made of elastic material, and the material of the body 1 is rubber or silicone.

The threaded end face of the bolt 4 has an axial internal screw hole 4-1. When the overhauled plug of the pipeline slides into the pipeline, a tool can be used to screw into the internal screw hole of the bolt 4, and the plugging will be fixed after matching with the internal screw hole. Head pulled out.

As shown in Figures 1 and 2, the outer diameter Φ 1 of the large-diameter end of the body ₁ and the outer diameter Φ _{2 of the upper pressing piece 2} satisfy the relational expression 0.5Φ ₁ ≤ Φ ₂ <Φ ₁ , and the small-diameter end of the body 1 The outer diameter Φ ₃ and the outer diameter Φ ₄ of the lower pressing piece 3 satisfy the relationship 0.5Φ ₃ ≤ Φ ₄ <Φ ₃ .

Embodiment two:

As shown in Figures 4 to 6, it has a body 1, an upper pressing piece 2, a lower pressing piece 3, a bolt 4 and a nut 5, the body 1 is cylindrical, and the outer peripheral surface of the body 1 has several annular grooves 1- 1 and the annular boss 1-2, the bolt 4 passes through the lower pressing piece 3, the body 1 and the upper pressing piece 2 in turn, and is fixed by the nut 5.

The body 1 is made of elastic material, and the material of the body 1 is rubber or silicone.

The threaded end face of the bolt 4 has an axial inner screw hole 4-1. When the maintenance pipeline is over-thick plug and slides into the pipeline, a tool can be screwed into the inner screw hole 4-1 of the bolt 4 to cooperate with the inner screw hole. Then pull out the plug.

The cross section of the annular groove 1-1 is a rectangular groove, of course, the cross section of the annular groove 1-1 can also be a trapezoidal groove, of course it can also be said that the cross section of the annular groove 1-1 For arc-shaped slots.

As shown in Figures 4 and 5, the body 1 has two annular grooves 1-1 and three annular protrusions 1-2.

As shown in Figure 4, the cylindrical outer diameter Φ ₅ of the body 1, the outer diameter Φ 6 of the upper pressing piece 2 and the outer diameter Φ ₇ of the lower pressing piece ₃ satisfy the relational formula 0.5Φ ₅ ≤ Φ ₆ <Φ ₅ , 0.5 Φ ₅ ≤ Φ ₇ < Φ ₅ .

Claims (10)

1. a kind of pipe stopper, it is characterised in that：With body（1）, upper tabletting（2）, lower sheeting（3）, bolt（4）And nut （5）, the body（1）In taper type, the bolt（4）Sequentially pass through lower sheeting（3）, body（1）With upper tabletting（2）, and by Nut（5）It is fixed, the bolt（4）Cap portion be located at body（1）Miner diameter end, the nut（5）Positioned at body（1）Big footpath End, the body（1）For elastomeric material.

2. pipe stopper according to claim 1, it is characterised in that：The body（1）Material be rubber or silica gel.

3. pipe stopper according to claim 1, it is characterised in that：The bolt（4）End of thread end face have axially Inner bolt hole（4-1）.

4. the pipe stopper according to claim 1 or 2 or 3, it is characterised in that：The body（1）Bigger diameter end external diameter Φ₁ With upper tabletting（2）External diameter Φ₂Meet the Φ of relational expression 0.5₁≤Φ₂＜ Φ₁, the body（1）Miner diameter end external diameter Φ₃With push Piece（3）External diameter Φ₄Meet the Φ of relational expression 0.5₃≤Φ₄＜ Φ₃。

5. a kind of pipe stopper, it is characterised in that：With body（1）, upper tabletting（2）, lower sheeting（3）, bolt（4）And nut （5）, the body（1）In cylinder, and body（1）Outer peripheral face on have some annular grooves（1-1）And annular boss（1- 2）, the bolt（4）Sequentially pass through lower sheeting（3）, body（1）With upper tabletting（2）, and by nut（5）It is fixed, the body （1）For elastomeric material.

6. pipe stopper according to claim 5, it is characterised in that：The body（1）Material be rubber or silica gel.

7. pipe stopper according to claim 5, it is characterised in that：The bolt（4）End of thread end face have axially Inner bolt hole（4-1）.

8. pipe stopper according to claim 5, it is characterised in that：The annular groove（1-1）Cross section be rectangle Groove or dovetail groove or arc-shaped slot.

9. pipe stopper according to claim 8, it is characterised in that：The body（1）It is upper that there are two annular grooves（1- 1）With three annular boss（1-2）.

10. the pipe stopper according to claim 5 or 6 or 7 or 8 or 9, it is characterised in that：The body（1）Cylinder outside Footpath Φ₅, upper tabletting（2）External diameter Φ₆And lower sheeting（3）External diameter Φ₇Meet the Φ of relational expression 0.5₅≤Φ₆＜ Φ₅, 0.5 Φ₅≤ Φ₇＜ Φ₅。