CN214222327U

CN214222327U - Flange type loose sleeve expansion joint

Info

Publication number: CN214222327U
Application number: CN202022888886.1U
Authority: CN
Inventors: 赵少朋; 赵建设
Original assignee: Henan Huayuan Water Supply Equipment Co ltd
Current assignee: Henan Huayuan Water Supply Equipment Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-09-17
Anticipated expiration: 2030-12-04

Abstract

The utility model discloses a flange formula loose tube expansion joint relates to expansion joint technical field, specifically is including connecting the main part, first seal groove has been seted up to the internal surface that connects the main part, the inside of seal groove is provided with first sealing washer, connect the first ring flange of one side fixedly connected with of main part, the surface sliding connection who connects the main part has the gland, the surface fixed connection of gland has the second ring flange, the internal surface sliding connection who connects the main part has spacing nozzle stub, the surface fixed connection of spacing nozzle stub has the third ring flange. This flange formula loose tube expansion joint sets up through the cooperation of fixed block, slide bar, slider, spring, bracing piece and solid fixed ring, can absorb the axial vibration that expansion joint received through the spring at the in-process that uses to play the effect that reduces the vibrations that expansion joint received, reached extension expansion joint life's purpose.

Description

Flange type loose sleeve expansion joint

Technical Field

The utility model relates to an expansion joint technical field specifically is a flange formula loose tube expansion joint.

Background

The pipeline is a device connected by pipes, pipe connectors, valves and the like, and the pipeline transportation is a transportation mode for transporting liquid and gas materials for a long distance by using the pipeline as a transportation tool. Because various high-temperature and high-pressure conveying conditions need to be met during pipeline transportation, and the pipeline is easily deformed and twisted due to stress on part of the pipeline, so that the pipeline is damaged, an expansion joint needs to be arranged at the pipeline connection position. The equipment is connected with the pipeline and the telescopic joint through the bolts to form a whole, the telescopic joint has the main effect of absorbing expansion or contraction of the pipeline caused by temperature change, and the condition that materials in the pipeline are leaked due to bending or cracking of the pipeline can be avoided.

However, the traditional expansion joint has poor sealing performance between the pipeline and the joint, which is easy to cause the leakage of substances in the pipeline and brings potential safety hazards, and part of the used expansion joint rigid expansion joint consists of a metal flange short pipe, a pressure plate and an expansion joint body, and the rigid expansion joint has high pressure bearing capacity but poor shock absorption and absorption performance.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a flange formula loose tube expansion joint has solved the problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a flange type loose sleeve expansion joint comprises a joint main body, wherein a first sealing groove is formed in the inner surface of the joint main body, a first sealing ring is arranged in the sealing groove, a first flange plate is fixedly connected with one side of the joint main body, the outer surface of the joint main body is connected with a gland in a sliding way, the outer surface of the gland is fixedly connected with a second flange plate, the inner surface of the joint main body is connected with a limit short pipe in a sliding way, the outer surface of the limit short pipe is fixedly connected with a third flange plate, one side of the second flange plate is fixedly connected with a fixed block, one side of the fixed block is fixedly connected with a sliding rod, the outer surface of the sliding rod is connected with a sliding block in a sliding way, one side of the sliding block is fixedly connected with a spring, the articulated bracing piece that has of slider, the one end of bracing piece articulates there is solid fixed ring, gu one end of solid fixed ring and one side fixed connection of third flange dish.

Optionally, one end of each spring is fixedly connected with one side of each fixing block, the number of the springs is two, and the springs close to one side of each fixing ring are tension springs.

Optionally, a fixing hole is formed in one side of each of the second flange plate and the third flange plate, a fixing rod and a limiting rod are fixedly connected to one side of the first fixing ring, and the outer surfaces of the fixing rod and the limiting rod are connected with the inner surface of the fixing hole in a sliding mode.

Optionally, the outer surface of the limiting short pipe is provided with a second sealing groove, and a second sealing ring is arranged inside the second sealing groove.

Optionally, the outer surfaces of the fixing rod and the limiting rod are both provided with threads, the outer surfaces of the fixing rod and the limiting rod are both sleeved with fixing nuts, and one end of the limiting rod is sleeved with a limiting nut.

Optionally, a cushion pad is fixedly connected to the inner surface of the limiting short pipe, and a circular protrusion is arranged on the surface of the cushion pad.

(III) advantageous effects

The utility model provides a flange formula loose tube expansion joint possesses following beneficial effect:

1. this flange formula loose tube expansion joint, through the setting of blotter and circular protrusion, make this flange formula loose tube expansion joint increase the effect of frictional force between expansion joint and the connecting tube, and absorb the vibrations that the connecting tube produced to a certain extent, avoid the connecting tube to come out from the expansion joint, through first seal groove, first sealing washer, the gland, the cooperation setting of second seal groove and second sealing washer, the gland passes through fixation nut and compresses tightly first sealing washer at the in-process that uses, the further leakproofness of having strengthened the device of second sealing washer, thereby the effect of the leakproofness of having strengthened expansion joint has been played, the mesh that the possibility was revealed to the reduction expansion joint has been reached.

2. This flange formula loose tube expansion joint sets up through the cooperation of fixed block, slide bar, slider, spring, bracing piece and solid fixed ring, can absorb the axial vibration that expansion joint received through the spring at the in-process that uses to play the effect that reduces the vibrations that expansion joint received, reached extension expansion joint life's purpose.

Drawings

FIG. 1 is a schematic front view of the present invention;

fig. 2 is a schematic structural view of the bottom section of the present invention;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2;

fig. 4 is a schematic structural view of the front view of the utility model.

In the figure: 1. a connector body; 2. a first seal ring; 3. a first flange plate; 4. a gland; 5. a second flange plate; 6. a short limiting pipe; 7. a third flange plate; 8. a fixed block; 9. a slide bar; 10. a slider; 11. a spring; 12. a support bar; 13. a fixing ring; 14. fixing the rod; 15. a limiting rod; 16. fixing a nut; 17. a limit nut; 18. a cushion pad; 19. and a second seal ring.

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.

Referring to fig. 1 to 4, the present invention provides a technical solution: a flange type loose sleeve expansion joint comprises a joint main body 1, wherein a first sealing groove is formed in the inner surface of the joint main body 1, a first sealing ring 2 is arranged inside the sealing groove, a first flange plate 3 is fixedly connected to one side of the joint main body 1, a gland 4 is slidably connected to the outer surface of the joint main body 1, a second flange plate 5 is fixedly connected to the outer surface of the gland 4, a limiting short pipe 6 is slidably connected to the inner surface of the joint main body 1, a second sealing groove is formed in the outer surface of the limiting short pipe 6, a second sealing ring 19 is arranged inside the second sealing groove, the first sealing ring 2, the gland 4, the second sealing groove and the second sealing ring 19 are matched, the gland 4 compresses the first sealing ring 2 through a fixing nut 16 in the using process, the sealing performance of the device is further enhanced through the second sealing ring 19, and the sealing performance of the expansion joint is enhanced, the purpose of reducing the leakage possibility of the expansion joint is achieved, the inner surface of the limit short pipe 6 is fixedly connected with a cushion pad 18, the surface of the cushion pad 18 is provided with a circular protrusion, the flange type loose sleeve expansion joint increases the friction effect between the expansion joint and a connected pipeline through the arrangement of the cushion pad 18 and the circular protrusion, the flange type loose sleeve expansion joint absorbs the vibration generated by the connected pipeline to a certain extent and prevents the connected pipeline from coming out of the expansion joint, the outer surface of the limit short pipe 6 is fixedly connected with a third flange disk 7, one sides of the second flange disk 5 and the third flange disk 7 are respectively provided with a fixing hole, one side of a first fixing ring 13 is fixedly connected with a fixing rod 14 and a limiting rod 15, the outer surfaces of the fixing rod 14 and the limiting rod 15 are respectively connected with the inner surface of the fixing hole in a sliding manner, the outer surfaces of the fixing rod 14 and the limiting rod 15 are respectively provided with threads, and the outer surfaces of the fixing rod 14 and the limiting rod 15 are respectively sleeved with a fixing nut 16, a limiting nut 17 is sleeved at one end of the limiting rod 15, a fixed block 8 is fixedly connected to one side of the second flange 5, a sliding rod 9 is fixedly connected to one side of the fixed block 8, a slider 10 is slidably connected to the outer surface of the sliding rod 9, a spring 11 is fixedly connected to one side of the slider 10, one end of the spring 11 is fixedly connected to one side of the fixed block 8, the number of the springs 11 is two, the spring 11 near one side of the fixed ring 13 is a tension spring, the slider 10 is hinged to a support rod 12, one end of the support rod 12 is hinged to a fixing ring 13, one end of the fixing ring 13 is fixedly connected to one side of the third flange 7, and by the matching arrangement of the fixed block 8, the sliding rod 9, the slider 10, the spring 11, the support rod 12 and the fixing ring 13, axial vibration received by the expansion joint can be absorbed by the spring 11 in the using process, thereby reducing the vibration received by the expansion joint, the purpose of prolonging the service life of the expansion joint is achieved.

During the use, with expansion joint's both sides with being linked together by the connecting tube, then twist and move fixation nut 16, make fixation nut 16 drive gland 4 through second ring flange 5 and compress tightly first sealing washer 2, improve the leakproofness between joint main part 1 and the spacing nozzle stub 6, if produced vibrations by the connecting tube, at first blotter 18 absorbs partly, vibrations drive spacing nozzle stub 6 and produce the removal simultaneously, spacing nozzle stub 6 drives solid fixed ring 13 through third ring flange 7 and removes along gag lever post 15, gu fixed ring 13 drives slider 10 through bracing piece 12 and removes, slider 10 drives spring 11 and removes, and then reduce and produce the influence by the connecting tube vibrations to expansion joint, guarantee expansion joint's normal work.

The utility model discloses a theory of operation and beneficial effect: the flange type loose sleeve expansion joint increases the effect of the friction force between the expansion joint and the connected pipeline through the arrangement of the buffer cushion 18 and the circular protrusion, absorbs the vibration generated by the connected pipeline to a certain extent, avoids the connected pipeline from coming out of the expansion joint, strengthens the sealing performance of the device through the matching arrangement of the first sealing groove, the first sealing ring 2, the gland 4, the second sealing groove and the second sealing ring 19, compresses the first sealing ring 2 through the fixing nut 16 by the gland 4 in the use process, further strengthens the sealing performance of the device through the second sealing ring 19, thereby strengthening the sealing performance of the expansion joint, achieves the purpose of reducing the leakage possibility of the expansion joint, and can absorb the axial vibration received by the expansion joint through the spring 11 through the matching arrangement of the fixing block 8, the sliding rod 9, the sliding block 10, the spring 11, the supporting rod 12 and the fixing ring 13 in the use process, thereby playing the role of reducing the vibration to which the expansion joint is subjected and achieving the purpose of prolonging the service life of the expansion joint.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a flange formula loose tube expansion joint, includes joint main part (1), its characterized in that: the inner surface of the joint main body (1) is provided with a first sealing groove, a first sealing ring (2) is arranged inside the sealing groove, one side of the joint main body (1) is fixedly connected with a first flange plate (3), the outer surface of the joint main body (1) is connected with a gland (4) in a sliding manner, the outer surface of the gland (4) is fixedly connected with a second flange plate (5), the inner surface of the joint main body (1) is connected with a limit short pipe (6) in a sliding manner, the outer surface of the limit short pipe (6) is fixedly connected with a third flange plate (7), one side of the second flange plate (5) is fixedly connected with a fixed block (8), one side of the fixed block (8) is fixedly connected with a sliding rod (9), the outer surface of the sliding rod (9) is connected with a sliding block (10), and one side of the sliding block (10) is fixedly connected with a spring (11), the articulated bracing piece (12) that has of slider (10), the one end of bracing piece (12) articulates there is solid fixed ring (13), gu one end of fixed ring (13) and one side fixed connection of third flange dish (7).

2. The flange-type loose tube expansion joint of claim 1, wherein: one end of the spring (11) is fixedly connected with one side of the fixing block (8), the number of the springs (11) is two, and the springs (11) are tension springs and are close to one side of the fixing ring (13).

3. The flange-type loose tube expansion joint of claim 1, wherein: the fixed orifices have all been seted up to one side of second ring flange (5) and third ring flange (7), one side fixedly connected with dead lever (14) and gag lever post (15) of first solid fixed ring (13), the surface of dead lever (14) and gag lever post (15) all with the internal surface sliding connection of fixed orifices.

4. The flange-type loose tube expansion joint of claim 1, wherein: and a second sealing groove is formed in the outer surface of the limiting short pipe (6), and a second sealing ring (19) is arranged in the second sealing groove.

5. A flange-type loose tube expansion joint according to claim 3, characterized in that: the outer surfaces of the fixing rod (14) and the limiting rod (15) are both provided with threads, the outer surfaces of the fixing rod (14) and the limiting rod (15) are both sleeved with a fixing nut (16), and one end of the limiting rod (15) is sleeved with a limiting nut (17).

6. The flange-type loose tube expansion joint of claim 1, wherein: the inner surface of the limiting short pipe (6) is fixedly connected with a cushion pad (18), and the surface of the cushion pad (18) is provided with a circular protrusion.