CN214662913U - Quick plugging device for low-pressure introduction port - Google Patents

Abstract

The utility model discloses a quick plugging device of low pressure inlet, it includes the interior pipeline, the fixed first cassette that is equipped with of distal end of interior pipeline, from distal end to near-end direction cover in proper order on the interior pipeline of first cassette near-end side be equipped with shutoff head and outer tube, the shutoff head adopts elastic material to make. Its purpose is in order to provide a quick plugging device of mouth is introduced to low pressure, its simple structure, easy and simple to handle, and the staff can utilize it to introduce the gas pipeline of mouth to the low pressure and carry out quick shutoff.

Description

Quick plugging device for low-pressure introduction port

Technical Field

The utility model relates to a gas field especially relates to a device that is used for carrying out quick shutoff to the gas pipeline of low pressure introduction mouth.

Background

When the gas pipe network is maintained and overhauled, the gas pipeline of the low-pressure inlet is generally required to be plugged, so that the maintenance and overhaul work can be normally carried out. However, at present, no suitable plugging device is used for plugging the gas pipeline of the low-pressure inlet, and the plugging is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a quick plugging device of mouth is introduced to low pressure, its simple structure, easy and simple to handle, the staff can utilize its gas pipeline to introduce the mouth to the low pressure to carry out quick shutoff.

The utility model discloses quick plugging device of low pressure introduction port, including the interior pipeline, the fixed first cassette that is equipped with of distal end of interior pipeline, from distal end to near-end direction cover in proper order on the interior pipeline of first cassette near-end side be equipped with shutoff head and outer tube, the shutoff head adopts elastic material to make.

The utility model discloses quick plugging device of mouth is introduced to low pressure, wherein the shutoff head is the column, the external diameter of shutoff head is from both ends grow gradually to the centre, the axis direction of shutoff head is equipped with the first through-hole that supplies the interior pipeline to pass.

The utility model discloses quick plugging device of mouth is introduced to low pressure, wherein the fixed second cassette that is equipped with of distal end of outer tube.

The utility model discloses quick plugging device of mouth is introduced to low pressure, wherein first cassette and second cassette all are the disc form.

The utility model discloses quick plugging device of mouth is introduced to low pressure, wherein be equipped with annular sealing member between the first through-hole periphery of shutoff head distal end face and the first cassette.

The utility model discloses quick plugging device of mouth is introduced to low pressure, wherein annular seal spare is fixed establishes the ring type seal on first cassette near-end side for fixed, the first through-hole periphery of shutoff head distal end face be equipped with ring type seal assorted ring type seals the recess.

The utility model discloses quick plugging device of mouth is introduced to low pressure, wherein annular seal spare is fixed to be established at the first through-hole outlying ring type seal of shutoff head distal end face, be equipped with on the near-end side of first cassette with ring type seal assorted ring type seal recess.

The utility model discloses the quick stopper of mouth is introduced to low pressure lies in with prior art difference the utility model discloses when using, arrange the distal end of interior pipeline in the gas pipeline of treating the low pressure introduction mouth of shutoff, and make the distal end of outer tube and shutoff head all be located the gas pipeline, fixed outer tube, and along the direction pulling interior pipeline from the distal end to the near-end, the relative outer tube of interior pipeline slides towards the near-end direction, make shutoff head centre gripping between first cassette and second cassette, continue along the direction pulling interior pipeline from the distal end to the near-end, make shutoff head produce the deformation that the external diameter becomes big under the centre gripping of first cassette and second cassette, the interior pipe wall of periphery wall and gas pipeline up to the shutoff head is in order to block up the gas pipeline. Therefore, the utility model discloses the quick plugging device of mouth is introduced to low pressure simple structure, easy and simple to handle, the staff can utilize its gas pipeline to introduce the mouth to the low pressure to carry out quick shutoff.

The present invention will be further explained with reference to the accompanying drawings.

Drawings

Fig. 1 is a front view of the low pressure inlet quick plugging device of the present invention;

fig. 2 is a front sectional view of the low pressure inlet quick stopper of the present invention;

fig. 3 is a top view of the first card seat of the present invention;

fig. 4 is a front sectional view of the first card seat of the present invention;

fig. 5 is a front sectional view of the plugging head of the present invention;

fig. 6 is a bottom view of the plugging head of the present invention;

fig. 7 is a using state diagram of the low pressure inlet quick plugging device of the present invention (when not plugged);

fig. 8 is a using state diagram (during plugging) of the low pressure inlet quick plugging device of the present invention.

Detailed Description

It should be noted that the terms "distal end" and "proximal end" in the present invention mean as follows: the utility model discloses quick plugging device of mouth is introduced to low pressure is when using, keeps away from staff one end and is "distal end", is close to staff one end and is "near-end".

As shown in fig. 1, and as shown in fig. 2-8, the present invention discloses a low-pressure inlet quick plugging device, which comprises an inner pipe 1, a first clamping seat 6 is fixed at the far end of the inner pipe 1, a plugging head 4 and an outer sleeve 2 are sequentially sleeved on the inner pipe 1 at the near end side of the first clamping seat 6 from the far end to the near end, and the plugging head 4 is made of an elastic material.

When the outer sleeve 2 is fixed, the inner pipeline 1 is pulled along the direction from the far end to the near end (the inner pipeline 1 slides towards the near end direction relative to the outer sleeve 2), the plugging head 4 can be clamped between the first clamping seat 6 and the far end of the outer sleeve 2, the inner pipeline 1 is continuously pulled, and under the clamping and extruding effects of the first clamping seat 6 and the outer sleeve 2, the plugging head 4 generates deformation with the enlarged outer diameter to plug the gas pipeline 9.

As shown in fig. 1, and it is shown in combination with fig. 2, 5, 6 that the utility model discloses the quick plugging device of mouth is introduced to low pressure, wherein shutoff head 4 is the column, shutoff head 4's external diameter from both ends grow gradually to the centre, shutoff head 4's axis direction is equipped with the first through-hole 8 that supplies interior pipeline 1 to pass. The proximal end of the inner line 1 is passed through the first through hole 8 in the distal to proximal direction into the outer sleeve 2.

As shown in fig. 1 and 2, the low-pressure inlet quick plugging device of the present invention has a second clamping seat 3 fixed to the distal end of the outer sleeve 2, and the second clamping seat 3 is fixed to the wall of the outer sleeve 2. The first clamping seat 6 and the second clamping seat 3 are both in a circular plate shape. The second clamping seat 3 is used for facilitating the clamping of the sealing head 4 between the outer sleeve 2 and the first clamping seat 6.

As shown in fig. 2, and shown in fig. 3-6, the low-pressure inlet quick plugging device of the present invention has an annular sealing member disposed between the periphery of the first through hole 8 of the distal end surface of the plugging head 4 and the first clamping seat 6. The annular sealing element is an annular sealing ring 5 fixedly arranged on the side surface of the near end of the first clamping seat 6, and an annular sealing groove 7 matched with the annular sealing ring 5 is arranged on the periphery of a first through hole 8 on the far end surface of the blocking head 4. Of course, the positions of the annular seal ring 5 and the annular seal groove 7 can also be interchanged, namely: the annular sealing element is an annular sealing ring 5 fixedly arranged on the periphery of a first through hole 8 on the far end face of the blocking head 4, and an annular sealing groove 7 matched with the annular sealing ring 5 is arranged on the side face of the near end of the first clamping seat 6.

As shown in fig. 7 and 8, the utility model discloses a use method of quick plugging device of mouth is introduced to low pressure includes following steps:

the far end of the inner pipeline 1 is arranged in a gas pipeline 9 of a low-pressure inlet to be blocked, and the far end of the outer sleeve 2 and the blocking head 4 are both arranged in the gas pipeline 9, wherein the outer diameter of the blocking head 4 is slightly smaller than the inner diameter of the gas pipeline 9,

fixing the outer sleeve 2, pulling the inner pipeline 1 along the direction from the far end to the near end to clamp the plugging head 4 between the first clamping seat 6 and the second clamping seat 3,

continuing to pull the inner pipeline 1 along the direction from the far end to the near end, so that the outer diameter of the blocking head 4 is deformed to be larger under the clamping of the first clamping seat 6 and the second clamping seat 3 until the outer peripheral wall of the blocking head 4 abuts against the inner pipe wall of the gas pipeline 9 to block the gas pipeline 9,

then the inner pipeline 1 is loosened to restore the blocking head 4 to the original state, the blocking of the gas pipeline 9 is released,

pulling the inner line 1 in a distal to proximal direction disengages the distal end of the inner line 1, the stopper head 4 and the distal end of the outer sleeve 2 together from the gas pipe 9.

As shown in fig. 8, when the outer sleeve 2 is fixed and the inner pipeline 1 is pulled along a direction from the far end to the near end, the inner pipeline 1 slides towards the near end direction relative to the outer sleeve 2, so that the first clamping seat 6, the plugging head 4 and the second clamping seat 3 are sequentially abutted (when the first clamping seat 6 abuts against the plugging head 4, the annular sealing ring 5 enters the annular sealing groove 7), and then the inner pipeline 1 is continuously pulled along the direction from the far end to the near end, because the plugging head 4 is made of an elastic material, the plugging head 4 generates deformation with an increased outer diameter under the clamping and squeezing of the first clamping seat 6 and the second clamping seat 3 until the outer peripheral wall of the plugging head 4 abuts against the inner pipe wall of the gas pipe 9 to plug the gas pipe 9. In order to enhance the sealing performance of the plugging, an annular sealing element is arranged between the first clamping seat 6 and the plugging head 4, and gas cannot leak from the first through hole 8 of the plugging head 4 under the action of the annular sealing element. In this way, the gas is blocked in the gas duct 9 on the distal end side of the plugging head 4. After the gas pipeline 9 is blocked by the blocking head 4, the relative position of the inner pipeline 1 and the outer sleeve 2 is fixed, and even if the blocking head 4 keeps the state of blocking the gas pipeline 9, a worker can perform maintenance and overhaul operation. After the maintenance and overhaul operation is completed, the inner pipeline 1 is loosened, so that the inner pipeline 1 is no longer in a tensioned state, the clamping force exerted on the plugging head 4 by the first clamping seat 6 and the second clamping seat 3 disappears, the plugging head 4 is restored to the original state, the plugging of the gas pipeline 9 is released, as shown in fig. 7, and then the plugging device is pulled out of the gas pipeline 9.

The quick plugging device for the low-pressure inlet of the utility model is different from the prior art in that when the device is used, the far end of the inner pipeline 1 is arranged in the gas pipeline 9 of the low-pressure inlet to be plugged, the far end of the outer sleeve 2 and the plugging head 4 are both positioned in the gas pipeline 9 (the outer diameter of the plugging head 4 is slightly smaller than the inner diameter of the gas pipeline 9), the outer sleeve 2 is fixed, and pulling the inner pipeline 1 along the direction from the far end to the near end, wherein the inner pipeline 1 slides towards the near end direction relative to the outer sleeve 2, so that the plugging head 4 is clamped between the first clamping seat 6 and the second clamping seat 3, and continuously pulling the inner pipeline 1 along the direction from the far end to the near end, so that the plugging head 4 generates deformation with the increased outer diameter under the clamping of the first clamping seat 6 and the second clamping seat 3 until the outer peripheral wall of the plugging head 4 abuts against the inner pipe wall of the gas pipeline 9 to plug the gas pipeline 9. Therefore, the utility model discloses a quick plugging device of mouth is introduced to low pressure simple structure, easy and simple to handle, the staff can utilize its gas pipeline 9 to introduce the mouth to the low pressure to carry out quick shutoff.

The diameters of the first clamping seat 6, the blocking head 4 and the second clamping seat 3 are all smaller than the inner diameter of the gas pipeline 9, wherein the outer diameter of the blocking head 4 is slightly smaller than the inner diameter of the gas pipeline 9. The diameter of the first clamping seat 6 is larger than the aperture of the first through hole 8, and the diameter of the second clamping seat 3 is larger than the aperture of the first through hole 8.

It should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "middle", 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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims (7)

1. A quick plugging device of low pressure inlet which characterized in that: the device comprises an inner pipeline, wherein a first clamping seat is fixedly arranged at the far end of the inner pipeline, a blocking head and an outer sleeve are sequentially sleeved on the inner pipeline at the near end side of the first clamping seat from the far end to the near end, and the blocking head is made of elastic materials.

2. A low pressure inlet quick stopper as claimed in claim 1 wherein: the plug is columnar, the outer diameter of the plug is gradually increased from two ends to the middle, and a first through hole for the inner pipeline to pass through is formed in the axis direction of the plug.

3. A low pressure inlet quick stopper as claimed in claim 2 wherein: and a second clamping seat is fixedly arranged at the far end of the outer sleeve.

4. A low pressure inlet quick stopper as claimed in claim 3 wherein: the first clamping seat and the second clamping seat are both in a circular plate shape.

5. The low pressure inlet quick stopper according to claim 4, wherein: an annular sealing element is arranged between the periphery of the first through hole on the far end face of the blocking head and the first clamping seat.

6. The low pressure inlet quick stopper according to claim 5, wherein: the annular sealing element is an annular sealing ring fixedly arranged on the side face of the near end of the first clamping seat, and an annular sealing groove matched with the annular sealing ring is formed in the periphery of the first through hole in the far end face of the blocking head.

7. The low pressure inlet quick stopper according to claim 5, wherein: the annular sealing element is an annular sealing ring fixedly arranged on the periphery of a first through hole in the far end face of the blocking head, and an annular sealing groove matched with the annular sealing ring is arranged on the side face of the near end of the first clamping seat.

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