CN217899177U

CN217899177U - Pipeline interface sealing device

Info

Publication number: CN217899177U
Application number: CN202222416497.8U
Authority: CN
Inventors: 杨海东
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2022-11-25
Anticipated expiration: 2032-09-13

Abstract

The utility model provides a pipeline interface sealing device, including seting up at the screw thread mouth of the pipeline one relative with two relative one end circumference outer walls departments of pipeline of treating the butt joint, and two screw thread mouths punishment do not the spiro union have ring flange one and ring flange two, ring flange one and ring flange two are close to circumference edge and open the bar hole that has three equidistance and distribute, its characterized in that: the expansion joint comprises a first flange plate and a second flange plate, wherein the first flange plate and the second flange plate are connected in a clamping mode through a telescopic connecting pipe, the telescopic connecting pipe comprises an inner inserting pipe and a main pipe which are connected together in a sliding mode with the same axial lead, anti-falling clamping grooves are formed in one ends, far away from the inner inserting pipe and the main pipe, expansion gaskets are connected in the two anti-falling clamping grooves in a clamping mode, and the diameter of each expansion gasket is equal to that of the first pipeline. The utility model discloses can be when carrying out the butt joint of pipeline kneck for the sealed effect of kneck is better, and can also not influence the sealed effect of kneck when whole pipeline receives the axial and slightly draws the extrusion, thereby improved this sealing device interference killing feature.

Description

Pipeline interface sealing device

Technical Field

The utility model relates to an oil gas pipeline maintains technical field, in particular to pipe joint sealing device.

Background

Pipes are often used to carry water, oil, gas, etc. and leaks often occur if the pipe-to-pipe connection is not properly sealed. When the cast tube interfaces are connected, the adopted structure is as follows: a groove is arranged in a socket of a casting pipe, a sealing ring is arranged in the groove, and a socket of another casting pipe is inserted into the socket of the casting pipe provided with the sealing ring and then connected and fixed to realize sealing.

Through retrieval, the Chinese patent with publication number CN111779988A discloses a sealing control system for a liquid raw material conveying pipeline interface of a chemical plant, which comprises a sealing unit, two pressing units and two clamping units, wherein the two pressing units are arranged at the front end and the rear end of the sealing unit, and the clamping units are arranged at the outer sides of the pressing units; although the traditional gasket is improved by the device and is changed into a splicing type seal, the device is provided with a plurality of sealing elements and hidden oil passages, once one ring of the sealing elements is subjected to traction force in the axial direction of the pipeline, oil leakage at the joint is easily caused, namely, the seal failure is caused, the hidden danger of the whole sealing property is increased, and therefore, the pipeline joint sealing device with strong tensile resistance and stability is needed.

SUMMERY OF THE UTILITY MODEL

In view of the above, embodiments of the present invention provide a pipe joint sealing device to solve or alleviate the technical problems in the prior art, and at least provide a useful choice.

The utility model discloses technical scheme is so realized: including seting up the screw thread mouth in the one end circumference outer wall department that treats two relative pipelines of butt joint, and two screw thread mouths punishment do not the spiro union have ring flange one and ring flange two, ring flange one and ring flange two are close to the circumference edge and open the bar hole that has three equidistance and distribute, the joint has flexible takeover between ring flange one and the ring flange two, and flexible takeover includes interior intubate and female pipe together with axial lead sliding connection, the one end that interior intubate and female pipe kept away from mutually all is opened has the anticreep draw-in groove, and two equal joints have the expansion gasket in the anticreep draw-in groove, the diameter of expansion gasket equals the diameter of pipeline one, the one end that interior intubate and female pipe kept away from mutually is close to the circumference edge and is fixed with the cutting ferrule picture peg board of three equidistance distribution respectively, the inside size looks adaptation of cutting ferrule picture peg board thickness and cutting ferrule, and the same one end of all cutting ferrule picture peg board all open the through-hole with the bar hole position looks adaptation, all peg graft in the through-bolt that has the fastening bolt passes the bar hole simultaneously, and the one end spiro union nut of flexible takeover is kept away from to the fastening bolt has the butt joint.

In some embodiments: one side that ring flange one and ring flange two are relative all is fixed with near the edge and is the cutting ferrule of central symmetry, and the surface of ring flange one is opened has rotatory direction indicator, through the setting of the rotatory direction indicator of cutting ferrule cooperation, can indicate when the installation earlier with flexible takeover interim joint between pipeline one and pipeline two according to correct direction, later consolidate and sealed processing.

In some embodiments: the telescopic connecting pipe further comprises a U-shaped slot which is formed in the end portion of the main pipe and has the opening thickness matched with the thickness of the inner inserting pipe, a compression spring is fixed between the bottom of the U-shaped slot and the end portion of the inner inserting pipe, a plurality of inner sealing rings are embedded in the inner wall of the U-shaped slot, and the inner sealing rings are extruded on the circumferential inner wall of the inner inserting pipe.

In some embodiments: one side of the expansion gasket, which is far away from the bottom of the anti-falling clamping groove, protrudes out of the plane where the pipe orifice of the telescopic connecting pipe is located; can let flexible takeover have certain buffer room when docking with pipeline one and pipeline two to deformation when expansion gasket is compressed can fill more spaces, improves sealed effect.

In some embodiments: the circumference outer wall of female pipe is fixed with three location cutting slips, and the extending direction of location cutting slips is parallel with the extending direction of flexible takeover, and the one end circumference outer wall that female pipe was kept away from to interior intubate is fixed with three U-shaped rod cover with location cutting slips width looks adaptation, and in the U-shaped rod cover again of location cutting slips sliding connection that corresponds, the radial position of the cutting ferrule picture peg on ensureing interior intubate and the female pipe keeps unanimous, prevents that flexible takeover itself from producing the wrench movement promptly non-axial ascending slip.

In some embodiments: the inner side surface and the outer side surface of the inner inserting pipe are in clearance fit with the inner wall of the U-shaped slot, so that the inner wall of the inner inserting pipe is fully contacted with the inner sealing ring, and the telescopic effect is achieved.

In some embodiments: and a rotating shaft frame is fixed at one end of each positioning insert far away from the U-shaped rod sleeve, a rotating wheel is arranged on each rotating shaft frame, a steel wire is fixed on the outer wall of the circumference of each rotating wheel, and the steel wire bypasses the rotating wheel and the other end of the steel wire is fixed on the corresponding U-shaped rod sleeve.

The embodiment of the utility model provides a owing to adopt above technical scheme, it has following advantage:

1. the utility model provides a pipeline interface sealing device, is through fixing the flexible takeover at the kneck, and the setting of the expansion gasket of cooperation diameter and pipeline diameter looks adaptation can be when carrying out the butt joint of pipeline kneck for the sealed effect of kneck is better, and can also not influence the sealed effect of kneck when whole pipeline receives axial slightly to draw and draws the extrusion, thereby has improved this sealing device interference killing feature.

2. A pipeline interface sealing device is provided, which is provided with a plurality of inner sealing rings and compression springs in a combined manner, so that an interface of a telescopic connecting pipe can be sealed when the length is different in an adaptive range, and the performance of resisting thermal expansion and cold contraction of a butted pipeline is improved.

3. The utility model provides a pipeline interface sealing device, has the setting of the runner of steel wire through the coiling, can coil three runner earlier in the butt joint and make the whole length of flexible takeover diminish, be convenient for fill in it in the interface between pipeline one and pipeline two.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and the following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention after installation;

FIG. 2 is a schematic view of a half-cut three-dimensional structure of the present invention;

FIG. 3 is an assembly structure view of the present invention;

fig. 4 is the assembly structure diagram of the middle telescopic connecting pipe of the utility model.

Reference numerals:

1-flange plate I, 2-pipeline I, 3-inner inserting pipe, 4-mother pipe, 5-flange plate II, 6-cutting sleeve and 7-cutting sleeve

The anti-dropping device comprises a plate, 8-steel wires, 9-rotating wheels, 10-positioning inserting strips, 11-U-shaped rod sleeves, 12-strip-shaped holes, 13-second pipelines, 14-U-shaped slots, 15-inner sealing rings, 16-compression springs, 17-expansion gaskets, 18-through holes, 19-opposite-top nuts, 20-threaded screw ports and 21-anti-dropping clamp grooves.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1:

as shown in fig. 1-4, a pipeline interface sealing device comprises a threaded screw port 20 formed in the circumferential outer wall of one end of a first pipeline 2 and a second pipeline 13 to be butted, a first flange plate 1 and a second flange plate 5 are respectively screwed at the two threaded screw ports 20, three strip-shaped holes 12 distributed equidistantly are formed in the circumferential edges of the first flange plate 1 and the second flange plate 5, a telescopic connecting pipe is clamped between the first flange plate 1 and the second flange plate 5 and comprises an inner inserting pipe 3 and a female pipe 4 which are connected together in a sliding manner with the same axis, anti-falling clamping grooves 21 are formed in the ends of the inner inserting pipe 3 and the female pipe 4 far away from each other, expansion gaskets 17 are clamped in the two anti-falling clamping grooves 21, the diameter of each expansion gasket 17 is equal to that of the first pipeline 2, three inserting sleeves 7 distributed are respectively fixed at the circumferential edges of the ends of the inner inserting pipe 3 and the female pipe 4 far away from each other, the thickness of each inserting sleeve 7 is matched with the inner size of each inserting sleeve 6, the same ends of all inserting sleeves 7 are provided with through holes 18 matched with fastening holes 12, and nuts 19 are connected with bolts 18 far away from the telescopic connecting pipes at the same distance; through fixing the flexible takeover at the kneck, the setting of the expansion gasket 17 of 2 diameter looks adaptations of cooperation diameter and pipeline can be when carrying out the butt joint of pipeline kneck for the sealed effect of kneck is better, and can also not influence the sealed effect of kneck when whole pipeline receives axial slightly to draw to drag the extrusion, thereby has improved this sealing device interference killing feature.

In this embodiment, the one side that the ring flange one 1 and the two 5 relative of ring flange are close to the edge all is fixed with the cutting ferrule 6 that is central symmetry, and the surface of ring flange one 1 is opened there is rotatory direction indicator, through the setting of the rotatory direction indicator of cutting ferrule 6 cooperation, can indicate when the installation earlier with the interim joint of flexible takeover between pipeline one 2 and pipeline two 13 according to correct direction, later consolidate and sealed processing again.

In this embodiment: the telescopic connecting pipe further comprises a U-shaped slot 14 which is formed in the end portion of the main pipe 4 and is matched with the inner inserting pipe 3 in thickness, a compression spring 16 is fixed between the bottom of the U-shaped slot 14 and the end portion of the inner inserting pipe 3, a plurality of inner sealing rings 15 are embedded in the inner wall of the U-shaped slot 14, the inner sealing rings 15 are extruded on the circumferential inner wall of the inner inserting pipe 3, the telescopic connecting pipe can be sealed at interfaces in different lengths in an adaptive range through the combination arrangement of the inner sealing rings 15 and the compression spring 16, and then the performance of resisting thermal expansion and cold contraction of the butted pipeline is improved.

In this embodiment: one side of the expansion gasket 17, which is far away from the bottom of the anti-falling clamping groove 21, protrudes out of the plane where the pipe orifice of the telescopic connecting pipe is located; can let flexible takeover have certain buffer room when butt joint with pipeline one 2 and pipeline two 13 to deformation when expansion gasket is compressed can fill more spaces, improves sealed effect.

In this embodiment: the circumference outer wall of female pipe 4 is fixed with three location cutting slips 10, and the extending direction of location cutting slips 10 is parallel with the extending direction of flexible takeover, the one end circumference outer wall that female pipe 4 was kept away from to interior intubate 3 is fixed with three U-shaped rod cover 11 with location cutting slips 10 width looks adaptation, in the U-shaped rod cover 11 again of corresponding location cutting slips 10 sliding connection, ensure that the radial position of cutting ferrule picture peg 7 on interior intubate 3 and the female pipe 4 keeps unanimous, prevent that flexible takeover itself from producing the wrench movement and be non-axial ascending slip.

In this embodiment: the inner and outer surfaces of the inner insert tube 3 are in clearance fit with the inner wall of the U-shaped slot 14, and the inner wall of the inner insert tube 3 is ensured to be sufficiently in contact with the inner seal ring 15, thereby exerting the effect of expansion and contraction.

In this embodiment: before use, the flange plate I1 and the flange plate II 5 are symmetrically screwed at the joint of the pipeline I2 and the pipeline II 13 respectively; then, the next step of installation can be carried out by ensuring that the port of the pipeline is approximately flush with the port of the flange plate; then the telescopic connecting pipe is plugged between the flange plate I1 and the flange plate II 5, and then the telescopic connecting pipe is normally extended until two ends of the telescopic connecting pipe are tightly abutted against one side of the flange plate I1 opposite to one side of the flange plate II 5, so that the telescopic connecting pipe can rotate; until through-hole 18 and bar hole 12 coincidence can be fixed with fastening bolt and counter nut 19, through fixing the flexible takeover at the kneck, the setting of the expansion gasket 17 of 2 diameter looks adaptations of cooperation diameter and pipeline is carrying out the pipeline kneck butt joint for the sealed effect of kneck is better, and can also not influence the sealed effect of kneck when whole pipeline receives axial slightly to drag to draw the extrusion, thereby has improved this sealing device interference killing feature.

Example 2:

the present embodiment is an improvement of embodiment 1, and as shown in figures 1-4,

in the embodiment, a rotating shaft frame is fixed at one end of each positioning insert 10, which is far away from the U-shaped rod sleeve 11, a rotating wheel 9 is arranged on each rotating shaft frame, a steel wire 8 is fixed on the circumferential outer wall of each rotating wheel 9, and the steel wire 8 bypasses the rotating wheel 9 and is fixed at the other end of the steel wire 8 on the corresponding U-shaped rod sleeve 11; through the setting of the runner 9 that has the steel wire 8 of coiling, can coil three runner 9 earlier in the butt joint and make the whole length of flexible takeover diminish, be convenient for fill in the interface between pipeline one 2 and the pipeline two 13 with it.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various changes or substitutions within the technical scope of the present invention, which should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a pipeline interface sealing device, is including seting up screw thread mouth (20) in the pipeline one (2) and the relative one end circumference outer wall department of pipeline two (13) of treating the butt joint, and two screw thread mouths (20) punishment do not the spiro union have ring flange one (1) and ring flange two (5), ring flange one (1) and ring flange two (5) are close to circumference edge and open bar hole (12) that have three equidistance to distribute, its characterized in that: the joint has flexible takeover between ring flange one (1) and the flange dish two (5), and flexible takeover includes interior intubate (3) and female pipe (4) that are in the same place with axial lead sliding connection, the one end of keeping away from mutually of interior intubate (3) and female pipe (4) has all been opened anticreep draw-in groove (21), and equal joint has expansion gasket (17) in two anticreep draw-in grooves (21), the diameter of expansion gasket (17) equals the diameter of pipeline one (2), the one end that interior intubate (3) and female pipe (4) were kept away from is close to circumference edge and is fixed with cutting ferrule picture peg (7) that three equidistance distributes respectively, the thickness of cutting ferrule picture peg (7) and the inside dimension looks adaptation of cutting ferrule (6), and the through-hole (18) of all cutting ferrule picture peg (7) same end all open have with bar hole (12) position looks adaptation, all have the fastening bolt that passes bar hole (12) simultaneously in through-hole (18), and the one end spiro union joint that flexible takeover was kept away from to the fastening bolt has abutting nut (19).

2. The pipe joint sealing device of claim 1, wherein: clamping sleeves (6) which are centrosymmetric are fixed on one side, close to the edge, of the flange plate I (1) and the flange plate II (5) in a relative mode, and a rotary direction indicator is arranged on the surface of the flange plate I (1).

3. The pipe joint sealing device of claim 1, wherein: the telescopic connecting pipe further comprises a U-shaped slot (14) which is formed in the end portion of the main pipe (4) and is matched with the inner inserting pipe (3) in thickness, a compression spring (16) is fixed between the bottom of the U-shaped slot (14) and the end portion of the inner inserting pipe (3), a plurality of inner sealing rings (15) are embedded in the inner wall of the U-shaped slot (14), and the inner sealing rings (15) are extruded on the circumferential inner wall of the inner inserting pipe (3).

4. The pipe joint sealing device of claim 1, wherein: one side of the expansion gasket (17) far away from the bottom of the anti-falling clamping groove (21) protrudes out of the plane of the pipe orifice of the telescopic connecting pipe.

5. The pipe joint sealing device of claim 1, wherein: the circumference outer wall of female pipe (4) is fixed with three location cutting (10), and the extending direction of location cutting (10) is parallel with the extending direction of flexible takeover, and interior intubate (3) keep away from one end circumference outer wall of female pipe (4) and be fixed with three U-shaped rod cover (11) with location cutting (10) width looks adaptation, in corresponding location cutting (10) sliding connection U-shaped rod cover (11) again.

6. The pipe joint sealing device of claim 5, wherein: the inner side surface and the outer side surface of the inner inserting pipe (3) are in clearance fit with the inner wall of the U-shaped inserting groove (14).

7. The pipe joint sealing device of claim 5, wherein: every the one end that U-shaped rod cover (11) were kept away from in location cutting (10) all is fixed with the pivot frame, and all is provided with runner (9) on the pivot frame, and the circumference outer wall of runner (9) is fixed with steel wire (8), and its other end of steel wire (8) are walked around runner (9) and are fixed on corresponding U-shaped rod cover (11).