CN212251164U

CN212251164U - Flange connection structure of stop valve

Info

Publication number: CN212251164U
Application number: CN202020728268.8U
Authority: CN
Inventors: 陈双河; 李艳征
Original assignee: Changzhou Xinruisi Energy Equipment Co ltd
Current assignee: Changzhou Xinruisi Energy Equipment Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2020-12-29
Anticipated expiration: 2030-05-07

Abstract

The utility model relates to a flange connection structure of a cut-off valve, which comprises a main pipeline, wherein one end of the main pipeline is fixedly connected with a screwed pipe, one end of the main pipeline, which is far away from the screwed pipe, is provided with a screwed groove, two ends of the main pipeline are fixedly sleeved with a limiting ring, one side of two ends of the main pipeline, which is far away from the two limiting rings, is respectively sleeved with a first flange, the middle part of the upper end of the main pipeline is fixedly connected with a second flange, the top of the second flange is connected with a third flange through bolt threads, the inside of the third flange is connected with a screwed post through threads, the top of the screwed post is fixedly connected with a handle, one end of the pipeline, which is far away from the screwed pipe, is provided with a screwed groove, the installation of the first flange at two ends is convenient, a clamping block is fixedly connected with the bottom of the, the position adjustment when the flanges are connected with each other is facilitated.

Description

Flange connection structure of stop valve

Technical Field

The utility model relates to a flange joint structure, in particular to flange joint structure of trip valve belongs to trip valve technical field.

Background

The trip valve is an automatic among the system actuating mechanism, the trip valve uses very extensively, can be used to cut off coal gas, combustion air, cold wind and flue gas etc, generally connect in the pipeline with the flange, the flange is also known as flange dish or bead, the flange is interconnect's part between pipe and the pipe for connecting between the pipe end, also there is the flange on equipment imports and exports, a connection between two equipment, but the flange of current trip valve is troublesome poeration when installing, consuming time long, it is extremely inconvenient to use, so the utility model relates to a flange joint structure of trip valve.

Disclosure of Invention

The utility model provides a flange joint structure of trip valve, this flange joint structure of trip valve pass through pipeline one end fixedly connected with screwed pipe, and the one end that the screwed pipe was kept away from to the pipeline has seted up the thread groove, and the installation of the flange of both ends a of being convenient for is through screw thread post bottom end fixedly connected with fixture block, plugs up the through-hole in the pipeline through the fixture block, prevents to leak in the pipeline, has cup jointed a flange through the pipeline both ends, the adjustment of position when the flange interconnect of being convenient for.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a flange connection structure of a cut-off valve, which comprises a main pipeline, wherein one end of the main pipeline is fixedly connected with a threaded pipe, one end of the main pipeline, which is far away from the threaded pipe, is provided with a threaded groove, two ends of the main pipeline are fixedly sleeved with limit rings, one side, which is far away from each other, of the two ends of the main pipeline is sleeved with a flange, the middle part of the upper end of the main pipeline is fixedly connected with a flange II, the top of the flange II is connected with a flange III through bolt threads, the inside of the flange III is connected with a threaded column through threads, the top of the threaded column is fixedly connected with a handle, the bottom of the threaded column is fixedly connected with a clamping block, the bottom of the clamping block is fixedly connected with a pressing block, one side, which is close to the threaded pipe, of the clamping block is arranged at the upper, the pressing block is clamped with the first fixing block and the second fixing block.

As the utility model discloses a preferred technical scheme, install the sealing washer in the thread groove, a rubber sleeve has been cup jointed in a fixture block and the briquetting outside.

As a preferred technical scheme of the utility model, all set up the draw-in groove that suits with the briquetting on fixed block and No. two fixed blocks.

As an optimal technical scheme of the utility model, set up on No. two flanges with No. three flange bottom bulge sizes suit the fluting and install the sealing washer in the fluting.

As an optimal technical scheme of the utility model, the centre gripping has spring clasp and the spacing collar between flange and the spacing collar on set up the spacing groove that suits with spring clasp.

As an optimal technical scheme of the utility model, the through-hole that suits with the fixture block size and is linked together with No. two flanges is seted up at pipeline upper end middle part.

The utility model discloses the beneficial effect who reaches is: the flange connection structure of the stop valve is characterized in that a threaded pipe is fixedly connected with one end of a pipeline, a threaded groove is formed in one end, away from the threaded pipe, of the pipeline, a flange at each of two ends is convenient to install, a clamping block is fixedly connected with the bottom of the threaded column, a through hole in the pipeline is plugged through the clamping block, internal leakage of the pipeline is prevented, a flange is sleeved at each of two ends of the pipeline, and the position of the flange is convenient to adjust when the flange is connected with each other.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic structural view of a first flange of the present invention;

fig. 3 is a schematic structural view of the threaded post of the present invention;

fig. 4 is a partial structural schematic diagram of the present invention.

In the figure: 1. a main pipeline; 2. a threaded pipe; 3. a limiting ring; 4. a first flange; 5. a thread groove; 6. a first fixed block; 7. a second flange; 8. a third flange; 9. a bolt; 10. a handle; 11. a threaded post; 12. a clamping block; 13. briquetting; 14. a second fixed block; 15. a card slot; 16. and a through hole.

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.

Example (b): as shown in figures 1-4, the flange connection structure of the cut-off valve of the utility model comprises a main pipe 1, one end of the main pipe 1 is fixedly connected with a screwed pipe 2, one end of the main pipe 1, which is far away from the screwed pipe 2, is provided with a thread groove 5, two ends of the main pipe 1 are fixedly sleeved with a limiting ring 3, one side of the two ends of the main pipe 1, which is far away from the two limiting rings 3, is sleeved with a first flange 4, the middle part of the upper end of the main pipe 1 is fixedly connected with a second flange 7, the top of the second flange 7 is connected with a third flange 8 through a bolt 9 by screw thread, the inside of the third flange 8 is connected with a screwed post 11 by screw thread, the top of the screwed post 11 is fixedly connected with a handle 10, the bottom of the screwed post 11 is fixedly connected with a clamping block 12, the bottom of the clamping block 12, the lower end of the inner cavity of the main pipeline 1 and located on one side, close to the thread groove 5, of the fixture block 12 are fixedly connected with a second fixing block 14, and the pressing block 13 is clamped with the first fixing block 6 and the second fixing block 14.

A sealing ring is arranged in the thread groove 5, and rubber sleeves are sleeved outside the clamping block 12 and the pressing block 13 to prevent fluid in the main pipeline 1 from leaking; a spring snap ring is clamped between the first flange 4 and the limiting ring 3, so that the first flange 4 and the limiting ring 3 can be conveniently connected; the first fixing block 6 and the second fixing block 14 are respectively provided with a clamping groove 15 which is matched with the pressing block 13, so that the pressing block 13 can be clamped conveniently, and the fluid flow in the main pipeline 1 is cut off; the second flange 7 is provided with a groove which is matched with the protruding part at the bottom of the third flange 8 in size, and a sealing ring is arranged in the groove, so that the second flange 7 and the third flange 8 can be conveniently connected with each other, and leakage is prevented; a spring snap ring is clamped between the first flange 4 and the limiting ring 3, and a limiting groove matched with the spring snap ring is formed in the limiting ring 3, so that the first flange 4 and the limiting ring 3 can be conveniently connected; the middle part of the upper end of the main pipeline 1 is provided with a through hole 16 which is adaptive to the size of the clamping block 12 and communicated with the second flange 7, so that the clamping block 12 can conveniently block the through hole 16.

Specifically, when the utility model is used, firstly, the threaded pipes 2 and the threaded grooves 5 at the two ends of the main pipeline 1 are connected with other pipelines in a threaded manner, then the first flange 4 is matched with the threaded holes of the external flange plate, pressing the spring snap ring on the first flange 4 to enable the spring snap ring to tightly press and retract into the limiting groove of the limiting ring 3, installing the first flange 4, connecting the first flange 4 with an external flange plate, and when the main pipeline 1 needs to be cut off, rotatory handle 10 drives the screw post 11 rotatory, and the through-hole 16 of seting up in trunk line 1 is plugged up to 11 bottom fixed connection's of screw post fixture block 12 this moment, prevents to leak, and 12 bottom fixed connection's of fixture block briquetting 13 presses on draw-in groove 15 of seting up on fixed block 6 and No. two fixed blocks 14, plugs up trunk line 1, if need open trunk line 1, through spin-up handle 10 drive briquetting 13 rise can.

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. The flange connection structure of the stop valve comprises a main pipeline (1) and is characterized in that one end of the main pipeline (1) is fixedly connected with a threaded pipe (2), one end of the main pipeline (1), which is far away from the threaded pipe (2), is provided with a threaded groove (5), two ends of the main pipeline (1) are fixedly sleeved with limiting rings (3), one side, which is far away from each other, of each limiting ring (3) is sleeved with a first flange (4), the middle part of the upper end of the main pipeline (1) is fixedly connected with a second flange (7), the top of the second flange (7) is in threaded connection with a third flange (8) through bolts (9), a threaded column (11) is in threaded connection with the inside of the third flange (8), the top end of the threaded column (11) is fixedly connected with a handle (10), and the bottom of the threaded column (11) is fixedly connected with a clamping block (12), fixture block (12) bottom fixedly connected with briquetting (13), trunk line (1) inner chamber upper end just is located fixture block (12) and is close to No. one side fixedly connected with fixed block (6) of screwed pipe (2), trunk line (1) inner chamber lower extreme just is located fixture block (12) and is close to No. two fixed block (14) of one side fixedly connected with of thread groove (5), briquetting (13) and fixed block (6) and No. two fixed block (14) joint.

2. The flange connection structure of a shut-off valve according to claim 1, characterized in that a sealing ring is installed in the thread groove (5), and rubber sleeves are sleeved on the outer sides of the fixture block (12) and the pressing block (13).

3. The flange connecting structure of the shut-off valve according to claim 1, wherein the first fixing block (6) and the second fixing block (14) are both provided with a clamping groove (15) adapted to the pressing block (13).

4. The flange connecting structure of the shut-off valve according to claim 1, characterized in that a groove corresponding to the size of the raised part at the bottom of the third flange (8) is formed on the second flange (7), and a sealing ring is arranged in the groove.

5. The flange connection structure of the cut-off valve according to claim 1, characterized in that a snap ring is clamped between the first flange (4) and the limiting ring (3), and a limiting groove adapted to the snap ring is formed in the limiting ring (3).

6. The flange connecting structure of the shut-off valve according to claim 1, wherein a through hole (16) which is adaptive to the size of the clamping block (12) and is communicated with the second flange (7) is formed in the middle of the upper end of the pipeline (1).