CN210531863U

CN210531863U - Natural gas line choke device

Info

Publication number: CN210531863U
Application number: CN201921291648.3U
Authority: CN
Inventors: 赵亚旭; 王昆
Original assignee: Yitong Natural Gas Co ltd
Current assignee: Yitong Natural Gas Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-05-15
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a natural gas line choke device, including first splint, the first rubber circle of a week fixedly connected with of first splint one side, the one end fixedly connected with second splint of first rubber circle, first splint are close to the central point of first rubber circle one side and put and install the bearing, and the inner circle fixedly connected with long screw rod of bearing, the one end of long screw rod run through the second splint to be connected with rotatory handle, the central point of second splint puts and is connected with the thread bush. This natural gas line choke device is equipped with first splint and second splint in natural gas line's inside, extrudees first rubber circle through first splint and second splint for first rubber circle expands to the circumferencial direction, with natural gas line's inner wall laminating, plays the choke effect, and sealed effect is better, adopts the mode installation of rotatory long screw rod, cancels the use of spanner, and it is more convenient to install.

Description

Natural gas line choke device

Technical Field

The utility model relates to a choke technical field specifically is a natural gas line choke device.

Background

At present, the air-blocking measure of the pipeline in the pipeline engineering construction, especially the gas pipeline, is to plug fire clay into the pipeline to complete the blocking, the fire clay is composed of fire-resistant powder material with a certain particle proportion, a binding agent and an additive, and the fire clay is mixed with water or a liquid binding agent, and the disadvantages of plugging the fire clay to block air are that the pressure which can be born is small, the potential safety hazard exists, the construction is inconvenient, the time consumption is long, and the repeated use cannot be realized.

Chinese patent CN202914964U discloses a gas pipeline choke device, including the main splint, the rubber circle, hexagonal head screw rod, hexagon nut and nut pass power spanner, the main splint have two, the rubber circle has one or more, hexagonal head screw rod and hexagon nut have one or more, the main splint open has one or more screw hole, still be provided with one or more auxiliary splint, the corresponding opening has one or more screw hole on the auxiliary splint, the rubber circle is corresponding to be opened has one or more screw hole, all with the screw hole phase-match of main splint. The utility model discloses a structural design is reasonable, thinks about ingenious simple, and bearing pressure is big, and construction convenience is swift moreover, and isolated gas is more thorough, has improved the degree of safety of construction, and it is more convenient to be under construction, practices thrift engineering time and cost.

Although this application has solved the problem in the background art to a certain extent, but the choke device is fixed with the natural gas line contact through rubber circle only in this application, and when gas pressure was great in the natural gas line, the phenomenon that the choke device was promoted probably appeared, and stability is not enough, and the area of contact of rubber circle and pipeline is little, in case the rubber circle surface appears sunken or warp, then can not guarantee sealed effect, need special nut to pass power spanner to install, it is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a natural gas line choke device has double seal, and is fixed firm, stable in structure, the problem among the prior art has been solved to the advantage of easy installation.

In order to achieve the above object, the utility model provides a following technical scheme: a natural gas pipeline air-blocking device comprises a first clamp plate, wherein a first rubber ring is fixedly connected to the periphery of one side of the first clamp plate, one end of the first rubber ring is fixedly connected with a second clamp plate, a bearing is installed at the central position, close to one side of the first rubber ring, of the first clamp plate, a long screw rod is fixedly connected to the inner ring of the bearing, one end of the long screw rod penetrates through the second clamp plate and is connected with a rotating handle, a threaded sleeve is connected to the central position of the second clamp plate and is meshed with the long screw rod, a limiting rod is fixedly connected to the end, far away from the first rubber ring, of the second clamp plate, an annular concave plate is fixedly connected to the periphery of the second clamp plate and comprises an inner ring plate, an annular top plate and an outer ring plate, one end of the inner ring plate is vertically connected with the second clamp plate, one end of the inner ring plate is fixedly connected with the inner ring of an annular top plate, the other end fixedly connected with third splint of outer lane board, first through-hole has been seted up at the center of third splint, and the one end that the outer lane board was kept away from to third splint is connected with the second rubber circle, the one end fixed connection fourth splint of second rubber circle, one side that the second rubber circle was kept away from to fourth splint is connected with annular retainer plate, and the second through-hole has been seted up at the center of fourth splint.

Preferably, a sealing gasket is connected to the inner wall of the annular top plate.

Preferably, first rubber circle and second rubber circle are cambered surface structure, and the bellied opposite direction of cambered surface of first rubber circle and second rubber circle, and the centre gripping has natural gas line between first rubber circle and the second rubber circle.

Preferably, the annular fixing ring and the outer ring plate are provided with bolt holes, fastening bolts penetrate through the bolt holes, and the number of the fastening bolts is not less than four.

Preferably, the width of the annular top plate is larger than the thickness of the natural gas pipeline, and the natural gas pipeline penetrates through the first through hole and the second through hole.

Preferably, the rotating handle is wrapped with a rubber sleeve, and the rubber sleeve is connected with anti-skid grains.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the natural gas pipeline air-blocking device is characterized in that a first clamping plate and a second clamping plate are arranged in a natural gas pipeline, the first clamping plate and the second clamping plate extrude a first rubber ring to expand the first rubber ring towards the circumferential direction and be attached to the inner wall of the natural gas pipeline to play a role in blocking air, a third clamping plate and a fourth clamping plate are connected to the outside of the natural gas pipeline, a second rubber ring opposite to the first rubber ring is connected to the second clamping plate, the third clamping plate and the second clamping plate are connected through an annular concave plate to drive the third clamping plate and the second clamping plate to move simultaneously, the second rubber ring is controlled to limit the natural gas pipeline, deformation of the natural gas pipeline is avoided, an annular fixing ring and an outer ring plate are additionally arranged to connect fastening bolts to fix the positions of the third clamping plate and the fourth clamping plate, the structure is stable, the first rubber ring and the second rubber ring are prevented from sliding, and a sealing gasket is in close contact, play the secondary seal effect, sealed effect is better, adopts the mode installation of rotatory long screw, cancels the use of spanner, and it is more convenient to install.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

fig. 2 is a right side view of the present invention;

fig. 3 is a left side view of the present invention.

In the figure: 1. a first splint; 11. a first rubber ring; 12. a bearing; 13. a long screw; 131. rotating the handle; 2. a second splint; 21. a threaded sleeve; 22. a limiting rod; 23. an annular concave plate; 231. an inner ring plate; 232. an annular top plate; 233. an outer ring plate; 24. a gasket; 3. a third splint; 31. a first through hole; 32. a second rubber ring; 4. a fourth splint; 41. an annular retainer ring; 42. a second through hole; 43. fastening a bolt; 5. a natural gas pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a natural gas pipeline choke apparatus includes a first clamping plate 1, a first rubber ring 11 fixedly connected to a circumference of one side of the first clamping plate 1, a second clamping plate 2 fixedly connected to one end of the first rubber ring 11, a bearing 12 mounted on a central position of one side of the first clamping plate 1 close to the first rubber ring 11, a long screw 13 fixedly connected to an inner ring of the bearing 12, a rotating handle 131 connected to one end of the long screw 13 and passing through the second clamping plate 2, a rubber sleeve wrapped on the rotating handle 131, and anti-slip threads connected to the rubber sleeve, the long screw 13 is rotated by the rotating handle 131 without a wrench for installation, the operation is easy, the central position of the second clamping plate 2 is connected to a threaded sleeve 21, the threaded sleeve 21 is engaged with the long screw 13, a limit rod 22 is fixedly connected to one end of the second clamping plate 2 far from the first rubber ring 11, a circumferential position of the second clamping plate 2 is fixedly connected to an annular concave plate 23, the annular concave plate 23 comprises an inner ring plate 231, an annular top plate 232 and an outer ring plate 233, one end of the inner ring plate 231 is vertically connected with the second clamping plate 2, one end of the inner ring plate 231 is fixedly connected with an inner ring of the annular top plate 232, a sealing gasket 24 is connected on the inner wall of the annular top plate 232, the sealing gasket 24 is tightly contacted with one end of the natural gas pipeline 5 to play a role of secondary sealing and enhance the sealing effect, the width of the annular top plate 232 is larger than the thickness of the natural gas pipeline 5, the natural gas pipeline 5 penetrates through the first through hole 31 and the second through hole 42 to facilitate installation, the outer ring of the annular top plate 232 is fixedly connected with one end of the outer ring plate 233, the other end of the outer ring plate 233 is fixedly connected with a third clamping plate 3, a first through hole 31 is formed in the center of the third clamping plate 3, one end, far away from the outer ring plate 233, of the third clamping, the first rubber ring 11 and the second rubber ring 32 are both arc surface structures, the protruding directions of the arc surfaces of the first rubber ring 11 and the second rubber ring 32 are opposite, the natural gas pipeline 5 is clamped between the first rubber ring 11 and the second rubber ring 32, when the two ends of the first rubber ring 11 are extruded by the first clamping plate 1 and the second clamping plate 2, the second rubber ring 32 is simultaneously extruded by the third clamping plate 3 and the fourth clamping plate 4, the first rubber ring 11 and the second rubber ring 32 are simultaneously expanded towards the circumferential direction, the natural gas pipeline 5 is simultaneously extruded, the first rubber ring 11 plays a gas blocking role, the natural gas pipeline 5 is limited by the second rubber ring 32 from the outside, the natural gas pipeline 5 is jointly clamped by the first rubber ring 11 and the second rubber ring 32, the structure is more stable, one side of the fourth clamping plate 4, which is far away from the second rubber ring 32, is connected with an annular fixing ring 41, a second through hole 42 is formed in the center of the fourth clamping plate 4, all seted up the bolt hole on annular retainer plate 41 and the outer lane board 233, run through fastening bolt 43 in the bolt hole, four fastening bolt 43 and natural pipeline's outer wall meshing is no less than to the quantity of fastening bolt 43, and fixed third splint 3 and fourth splint 4 prevent that natural gas pipeline 5 internal pressure is too big, promote first splint 1 and remove.

The working process is as follows: when the natural gas pipeline choke device is used, one end of a natural gas pipeline 5 needing choke penetrates through the space between the first rubber ring 11 and the second rubber ring 32 until one end of the natural gas pipeline 5 is contacted with the sealing gasket 24, the annular fixing ring 41 is fixed on the natural gas pipeline 5 through the fastening bolt 43, the position of the limiting rod 22 is fixed on one hand, the handle 131 is rotated on the other hand to drive the long screw 13 to rotate, the threaded sleeve 21 moves on the long screw 13 to drive the second clamping plate 2 to approach the first clamping plate 1, meanwhile, the annular concave plate 23 drives the third clamping plate 3 to approach the fourth clamping plate 4, the first rubber ring 11 and the second rubber ring 32 expand and open towards the circumferential direction simultaneously to extrude the natural gas pipeline 5, the first rubber ring 11 plays a choke function, the second rubber ring 32 limits the natural gas pipeline 5 from the outside, the first rubber ring 11 and the second rubber ring 32 clamp the natural gas pipeline 5 together, meanwhile, the annular top plate 232 drives the sealing gasket 24 to approach the natural gas pipeline 5, the sealing gasket 24 is in close contact with one end of the natural gas pipeline 5 to achieve a secondary sealing effect, and finally the outer ring plate 233 and the natural gas pipeline 5 are connected through the fastening bolt 43.

In summary, the following steps: the natural gas pipeline air-blocking device is characterized in that a first clamping plate 1 and a second clamping plate 2 are arranged inside a natural gas pipeline 5, a first rubber ring 11 is extruded through the first clamping plate 1 and the second clamping plate 2, the first rubber ring 11 is expanded towards the circumferential direction and is attached to the inner wall of the natural gas pipeline 5 to play a role of air blocking, a third clamping plate 3 and a fourth clamping plate 4 are connected to the outside of the natural gas pipeline 5, a second rubber ring 32 opposite to the first rubber ring 11 is connected, the third clamping plate 3 and the second clamping plate 2 are connected through an annular concave plate 23, the third clamping plate 3 and the second clamping plate 2 are driven to move simultaneously, the second rubber ring 32 is controlled to limit the natural gas pipeline 5, the natural gas pipeline 5 is prevented from deforming, an annular fixing ring 41 and an outer ring plate 233 are additionally arranged to connect a fastening bolt 43, the positions of the third clamping plate 3 and the fourth clamping plate 4 are fixed, the structure is stable, and the first rubber ring 11 and the second rubber ring 32 are prevented, sealed pad 24 and natural gas line 5's one end in close contact with plays the secondary seal effect, and sealed effect is better, adopts the mode installation of rotatory long screw 13, cancels the use of spanner, and it is more convenient to install.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A natural gas pipeline choke device, including first splint (1), its characterized in that: a first rubber ring (11) is fixedly connected to the periphery of one side of the first clamping plate (1), a second clamping plate (2) is fixedly connected to one end of the first rubber ring (11), a bearing (12) is installed at the central position, close to one side of the first rubber ring (11), of the first clamping plate (1), a long screw (13) is fixedly connected to the inner ring of the bearing (12), one end of the long screw (13) penetrates through the second clamping plate (2) and is connected with a rotating handle (131), a threaded sleeve (21) is connected to the central position of the second clamping plate (2), the threaded sleeve (21) is meshed with the long screw (13), a limiting rod (22) is fixedly connected to one end, far away from the first rubber ring (11), of the second clamping plate (2), an annular concave plate (23) is fixedly connected to the periphery of the second clamping plate (2), the annular concave plate (23) comprises an inner ring plate (231), an annular top plate (232) and an outer ring plate (, one end and the second splint (2) of inner circle board (231) are connected perpendicularly, the one end of inner circle board (231) and the inner circle fixed connection of annular roof (232), the outer lane of annular roof (232) and the one end fixed connection of outer circle board (233), the other end fixedly connected with third splint (3) of outer circle board (233), first through-hole (31) have been seted up at the center of third splint (3), and the one end that outer circle board (233) were kept away from in third splint (3) is connected with second rubber circle (32), the one end fixed connection fourth splint (4) of second rubber circle (32), the one side that second rubber circle (32) were kept away from in fourth splint (4) is connected with annular retainer plate (41), and second through-hole (42) have been seted up at the center of fourth splint (4).

2. The natural gas pipeline choking device of claim 1, wherein: and a sealing gasket (24) is connected to the inner wall of the annular top plate (232).

3. The natural gas pipeline choking device of claim 1, wherein: first rubber circle (11) and second rubber circle (32) are cambered surface structure, and the bellied opposite direction of cambered surface of first rubber circle (11) and second rubber circle (32), and natural gas line (5) are held to the centre gripping between first rubber circle (11) and second rubber circle (32).

4. The natural gas pipeline choking device of claim 1, wherein: bolt holes are formed in the annular fixing ring (41) and the outer ring plate (233), fastening bolts (43) penetrate through the bolt holes, and the number of the fastening bolts (43) is not less than four.

5. The natural gas pipeline choking device of claim 1, wherein: the width of annular roof (232) is greater than the thickness of natural gas line (5), and natural gas line (5) run through first through-hole (31) and second through-hole (42).

6. The natural gas pipeline choking device of claim 1, wherein: the rotating handle (131) is wrapped with a rubber sleeve, and the rubber sleeve is connected with anti-skid lines.