Pipeline connecting device

Abstract

The utility model relates to a pipeline connecting device which comprises a sealing structure and a flange structure. The flange structure is matched with the sealing structure and comprises a first flange plate and a second flange plate, the first flange plate is provided with multiple sets of limiting parts, the second flange plate is provided with multiple sets of fixing clamping protrusions, the multiple sets of fixing clamping protrusions and the multiple sets of limiting parts are arranged in a one-to-one correspondence mode, and the flange structure has the connecting state that the fixing clamping protrusions and the limiting parts are connected in a clamped mode. Or the fixed clamping bulge is separated from the limiting part. According to the technical scheme, the problem that in the prior art, when the first flange plate and the second flange plate are connected, operation is tedious is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline connection, and in particular to a pipeline connection device. Background Art

[0002] In glass production, fuel gas is needed to melt glass raw materials in the kiln. During the gas transportation process, a large number of flanges are needed to connect the transportation pipelines. The existing flanges are fixed by circumferentially arranging multiple sets of bolts. However, the bolt connection is not only cumbersome to operate, but also has poor sealing effect between pipelines. When it is inspected or replaced, the bolts are prone to rust, making it difficult to disassemble.

[0003] The existing device (for example, the authorization announcement number is CN208074339U, and the name is: flange) includes a first flange and a second flange that are detachably connected, a first slide groove is provided in the radial direction of the first flange, a wedge-shaped block is slidably connected to the first slide groove, a second slide groove parallel to its axis and perpendicularly intersecting the first slide groove is provided in the first flange, a slide rod that is fixedly provided on the second flange and is engaged with the second slide groove, a clamping hole that is engaged with the wedge-shaped block is provided on the slide rod, a first elastic member that drives the wedge-shaped block to engage with the clamping hole is connected between the first flange and the wedge-shaped block, and a limiting mechanism is provided on the first flange. When the wedge-shaped block is engaged with the clamping hole, the limiting mechanism limits the sliding of the wedge-shaped block on the first slide groove, so that the sealing performance of the two flanges is better when connected. However, this device is cumbersome to operate and has low disassembly efficiency. Utility Model Content

[0004] The present application provides a pipeline connection device to solve the problem of complicated operation when connecting a first flange and a second flange in the prior art.

[0005] According to the present application, a pipeline connection device is provided, including: a sealing structure and a flange structure. The flange structure and the sealing structure cooperate with each other, the flange structure includes a first flange plate and a second flange plate, the first flange plate has multiple groups of limiting parts, the second flange plate has multiple groups of fixed convex parts, the multiple groups of fixed convex parts and the multiple groups of limiting parts are arranged one by one, and the flange structure has a connection state in which the fixed convex parts and the limiting parts are connected, or a separation state in which the fixed convex parts and the limiting parts are separated.

[0006] In some embodiments, the first flange has a first through hole, the second flange has a second through hole, the first flange has a plurality of mating grooves, the plurality of mating grooves are arc-shaped grooves, the plurality of mating grooves are arranged on the circumferential outside of the first through hole, the plurality of fixing protrusions are arranged on the circumferential outside of the second through hole, and the plurality of mating grooves and the plurality of limiting portions are arranged one-to-one.

[0007] In some embodiments, multiple groups of limiting portions are arc-shaped baffles, the first side surface of the limiting portion is connected to the first side surface of the matching groove, the second side surface of the limiting portion is connected to the second side surface of the matching groove, the third side surface of the limiting portion and the third side surface of the matching groove have a spacing distance, the fourth side surface of the limiting portion and the fourth side surface of the matching groove have a spacing distance, and the fifth side surface of the limiting portion and the fifth side surface of the matching groove have a spacing distance.

[0008] In some embodiments, the fixing protrusion includes a first fixing portion and a second fixing portion, the first end of the first fixing portion is connected to the second flange, the second end of the first fixing portion is connected to the second fixing portion, and the second fixing portion and the first fixing portion are vertically arranged.

[0009] In some embodiments, the arc length of the second fixed portion is smaller than the difference between the arc lengths of the mating groove and the limiting portion, the length of the second fixed portion is less than or equal to the length of the limiting portion, and in the connected state, the second fixed portion and the fifth side surface of the limiting portion and the first side surface, the fifth side surface, the sixth side surface and the second side surface of the mating groove all abut against each other.

[0010] In some embodiments, the sealing structure includes a first sealing part and a second sealing part, the first end of the first sealing part and the first end of the second sealing part are rotatably connected via a rotating shaft, the second end of the first sealing part is provided with a first connecting plate, and the second end of the second sealing part is provided with a second connecting plate.

[0011] In some embodiments, the first connecting plate has a first threaded hole, the second connecting plate has a second threaded hole, and the sealing structure has a sealed state in which the screw is screwed together with the first threaded hole and the second threaded hole, or a non-sealed state in which the screw is separated from the first threaded hole and the second threaded hole.

[0012] In some embodiments, the first sealing portion and the second sealing portion are both arc-shaped plates. In a sealed state, the first sealing portion and the second sealing portion are covered on the circumferential outer side of the flange structure. The first sealing portion and the second sealing portion both have an inner wall, an outer wall and two side walls. The sealing structure includes a plurality of mounting holes, and the plurality of mounting holes are spaced apart on the two side walls of the first sealing portion and the second sealing portion.

[0013] In some embodiments, the sealing structure further includes four groups of semi-annular baffles, the semi-annular baffles having a plurality of protrusions, the plurality of protrusions being arranged at intervals along the circumference of the semi-annular baffles, and the plurality of protrusions and the plurality of mounting holes being arranged in one-to-one correspondence.

[0014] In some embodiments, the flange structure further includes a sealing strip, which is disposed between the first flange plate and the second flange plate.

[0015] By applying the technical solution of the present application, the pipeline connection device includes a sealing structure and a flange structure, the flange structure and the sealing structure cooperate with each other, the flange structure includes a first flange and a second flange, and the sealing structure can prevent gas leakage at the connection between the first flange and the second flange. The first flange has multiple groups of limiting parts, and the second flange has multiple groups of fixed clamping protrusions. The multiple groups of fixed clamping protrusions and the multiple groups of limiting parts are arranged one by one. The flange structure has a connection state in which the fixed clamping protrusions and the limiting parts are clamped, or a separation state in which the fixed clamping protrusions and the limiting parts are separated. By rotating the first flange and the second flange, the fixed clamping protrusions and the limiting parts are clamped, so as to realize the matching connection of the first flange and the second flange. By rotating the first flange and the second flange, the fixed clamping protrusions and the limiting parts are separated, so as to realize the separation of the first flange and the second flange. This setting method ensures that the sealing effect of the first flange and the second flange is ensured during the connection process, while the operation is simpler. The technical solution of the present application effectively solves the problem of cumbersome operation when the first flange and the second flange are connected in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 A schematic structural diagram of a pipeline connection device according to an embodiment of the present application is shown;

[0019] Figure 2 A structural schematic diagram of the flange structure of an embodiment of the present application is shown;

[0020] Figure 3 A schematic diagram showing the structure of a first flange according to an embodiment of the present application is shown;

[0021] Figure 4 A schematic structural diagram of a pipe connection device in a sealed state according to an embodiment of the present application is shown;

[0022] Figure 5 A structural schematic diagram of a sealing structure according to an embodiment of the present application is shown;

[0023] Figure 6 A schematic structural diagram of a semi-annular baffle according to an embodiment of the present application is shown.

[0024] The above drawings include the following reference numerals:

[0025] 10. Sealing structure; 11. First sealing part; 111. First connecting plate; 12. Second sealing part; 121. Second connecting plate; 13. Mounting hole; 14. Semi-circular baffle; 141. Protrusion; 20. Flange structure; 21. First flange; 211. Limiting part; 212. First through hole; 213. Matching groove; 22. Second flange; 221. Fixing cam; 2211. First fixing part; 2212. Second fixing part. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0028] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0029] like Figure 1 As shown, the embodiment relates to a pipeline connection device, including: a sealing structure 10 and a flange structure 20. The flange structure 20 and the sealing structure 10 cooperate with each other, and the flange structure 20 includes a first flange 21 and a second flange 22. The first flange 21 has multiple groups of limiting portions 211, and the second flange 22 has multiple groups of fixed protrusions 221. The multiple groups of fixed protrusions 221 and the multiple groups of limiting portions 211 are arranged one by one. The flange structure 20 has a connection state in which the fixed protrusions 221 and the limiting portions 211 are connected, or a separation state in which the fixed protrusions 221 and the limiting portions 211 are separated.

[0030] Applying the technical solution of this embodiment, the pipeline connecting device includes a sealing structure 10 and a flange structure 20. The flange structure 20 and the sealing structure 10 cooperate with each other. The flange structure 20 includes a first flange plate 21 and a second flange plate 22. The sealing structure 10 can prevent gas leakage at the connection between the first flange plate 21 and the second flange plate 22. The first flange 21 has a plurality of groups of limiting parts 211, and the second flange 22 has a plurality of groups of fixed convexities 221. The plurality of groups of fixed convexities 221 and the plurality of groups of limiting parts 211 are arranged one by one. The flange structure 20 has a connection state in which the fixed convexities 221 and the limiting parts 211 are engaged with each other, or a separation state in which the fixed convexities 221 and the limiting parts 211 are separated from each other. By rotating the first flange 21 and the second flange 22, the fixed convexities 221 and the limiting parts 211 are engaged with each other, so as to realize the matching connection of the first flange 21 and the second flange 22. By rotating the first flange 21 and the second flange 22, the fixed convexities 221 and the limiting parts 211 are separated from each other, so as to realize the separation of the first flange 21 and the second flange 22. This arrangement ensures that the sealing effect is ensured during the connection process of the first flange 21 and the second flange 22, and the operation is simpler. The technical solution of this embodiment effectively solves the problem of cumbersome operation when the first flange 21 and the second flange 22 are connected in the prior art.

[0031] like Figure 2 and Figure 3 As shown, in some embodiments, the first flange 21 has a first through hole 212, the second flange 22 has a second through hole, the first flange 21 has a plurality of matching grooves 213, the plurality of matching grooves 213 are arc-shaped grooves, the plurality of matching grooves 213 are arranged on the circumferential outer side of the first through hole 212, the plurality of fixing protrusions 221 are arranged on the circumferential outer side of the second through hole, and the plurality of matching grooves 213 and the plurality of limiting portions 211 are arranged one by one. The plurality of groups of arc-shaped grooves and the plurality of groups of limiting portions 211 are arranged on the circumferential outer side of the first through hole 212, the plurality of groups of limiting portions 211 are arc-shaped baffles, the limiting portions 211 are connected to the inner wall of the matching groove 213, and face the first through hole 212. The length of the limiting portion 211 is less than the length of the matching groove 213, and the thickness of the limiting portion 211 is less than the depth of the matching groove 213.

[0032] like Figure 3As shown, in some embodiments, multiple groups of limiting parts 211 are arc-shaped baffles, the first side of the limiting part 211 is connected to the first side of the matching groove 213, the second side of the limiting part 211 is connected to the second side of the matching groove 213, the third side of the limiting part 211 and the third side of the matching groove 213 are spaced apart, the fourth side of the limiting part 211 and the fourth side of the matching groove 213 are spaced apart, and the fifth side of the limiting part 211 and the fifth side of the matching groove 213 are spaced apart. A limiting space is formed between the limiting part 211 and the matching groove 213, which is used to limit the fixing protrusion 221.

[0033] like Figure 2 As shown, in some embodiments, the fixing protrusion 221 includes a first fixing portion 2211 and a second fixing portion 2212, the first end of the first fixing portion 2211 is connected to the second flange 22, the second end of the first fixing portion 2211 is connected to the second fixing portion 2212, and the second fixing portion 2212 is vertically arranged to the first fixing portion 2211. By providing the fixing protrusion 221 and the limiting portion 211, two sets of flanges can be connected without drilling, which can greatly reduce the risk of leakage from the drilling position.

[0034] like Figure 2 As shown, in some embodiments, the arc length of the second fixed portion 2212 is smaller than the difference between the arc lengths of the matching groove 213 and the limiting portion 211. This arrangement allows the second fixed portion 2212 to be inserted into the matching groove 213, and will not be interfered with during the rotation to abut against the limiting portion 211. The length of the second fixed portion 2212 is less than or equal to the length of the limiting portion 211. This arrangement is intended to prevent the first fixed portion 2211 from colliding with the limiting portion 211, resulting in failure to limit. At this time, the length of the first fixed portion 2211 is less than or equal to the difference between the lengths of the matching groove 213 and the limiting portion 211. In the connected state, the second fixed portion 2212 abuts against the fifth side of the limiting portion 211 and the first, fifth, sixth and second sides of the matching groove 213. During use, the fixing protrusion 221 is placed in the matching groove 213, and then rotated so that the fixing protrusion 221 and the limiting portion 211 are abutted against each other to achieve the connection between the two sets of flanges. The first through hole 212 and the second through hole are provided with internal threads, and the outer wall of the pipeline is provided with external threads. The pipeline and the first flange 21 and the second flange 22 are connected by threaded connection, and the threaded matching method enables the first flange 21 and the second flange 22 to be connected by rotating to achieve the matching of the fixing protrusion 221 and the limiting portion 211 and thus achieve connection.

[0035] like Figure 5As shown, in some embodiments, the sealing structure 10 includes a first sealing portion 11 and a second sealing portion 12, the first end of the first sealing portion 11 and the first end of the second sealing portion 12 are rotatably connected through a rotating shaft, the second end of the first sealing portion 11 is provided with a first connecting plate 111, and the second end of the second sealing portion 12 is provided with a second connecting plate 121. The first sealing portion 11 and the second sealing portion 12 are sleeved at the connection gap between the first flange 21 and the second flange 22. Leakage is prevented at the connection gap.

[0036] like Figure 4 As shown, in some embodiments, the first connecting plate 111 has a first threaded hole, the second connecting plate 121 has a second threaded hole, and the sealing structure 10 has a sealed state in which the screw is screwed with the first threaded hole and the second threaded hole, or a non-sealed state in which the screw is separated from the first threaded hole and the second threaded hole.

[0037] like Figures 4 to 6 As shown, in some embodiments, the first sealing portion 11 and the second sealing portion 12 are both arc-shaped plates. In the sealed state, the first sealing portion 11 and the second sealing portion 12 are covered on the circumferential outer side of the flange structure 20, that is, they are covered at the connection gap between the first flange plate 21 and the second flange plate 22. The first sealing portion 11 and the second sealing portion 12 both have an inner wall, an outer wall and two side walls. The sealing structure 10 includes a plurality of mounting holes 13, and the plurality of mounting holes 13 are arranged at intervals on the two side walls of the first sealing portion 11 and the second sealing portion 12. The sealing structure 10 also includes four groups of semi-annular baffles 14, the semi-annular baffles 14 have a plurality of protrusions 141, and the plurality of protrusions 141 are arranged at intervals along the circumference of the semi-annular baffles 14. The plurality of protrusions 141 and the plurality of mounting holes 13 are arranged one by one. Two groups of semi-annular baffles 14 are arranged on one side wall of the first sealing portion 11 and the second sealing portion 12, and the other two groups of semi-annular baffles 14 are arranged on the other side wall of the first sealing portion 11 and the second sealing portion 12. After the two groups of semi-annular baffles 14 are installed, the middle half ring just forms a complete circle, and the diameter of the circle is just the diameter of the pipe. At this time, the first sealing part 11 and the second sealing part 12 and the four groups of semi-annular baffles 14 can well seal the first flange 21 and the second flange 22 in the connected state. The flange structure 20 also includes a sealing strip, which is arranged between the first flange 21 and the second flange 22. The sealing strip can be arranged in a circle on the circumferential outer side of the matching groove 213 to further enhance the sealing effect.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0040] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pipeline connection device, characterized in that: include: Sealing structure (10); A flange structure (20), wherein the flange structure (20) and the sealing structure (10) cooperate with each other, wherein the flange structure (20) comprises a first flange plate (21) and a second flange plate (22), wherein the first flange plate (21) has a plurality of groups of limiting portions (211), and the second flange plate (22) has a plurality of groups of fixing protrusions (221), wherein the plurality of groups of fixing protrusions (221) and the plurality of groups of limiting portions (211) are arranged in a one-to-one correspondence, and wherein the flange structure (20) has a connection state in which the fixing protrusions (221) and the limiting portions (211) are locked together, or a separation state in which the fixing protrusions (221) and the limiting portions (211) are disengaged from each other.

2. The pipe connection device according to claim 1, characterized in that: The first flange (21) has a first through hole (212), the second flange (22) has a second through hole, the first flange (21) has a plurality of matching grooves (213), the plurality of matching grooves (213) are arc-shaped grooves, the plurality of matching grooves (213) are arranged on the circumferential outer side of the first through hole (212), the plurality of fixing protrusions (221) are arranged on the circumferential outer side of the second through hole, and the plurality of matching grooves (213) and the plurality of limiting portions (211) are arranged in a one-to-one correspondence.

3. The pipeline connecting device according to claim 2, characterized in that: Multiple groups of the limiting portions (211) are arc-shaped blocking pieces, the first side surface of the limiting portion (211) is connected to the first side surface of the matching groove (213), the second side surface of the limiting portion (211) is connected to the second side surface of the matching groove (213), the third side surface of the limiting portion (211) and the third side surface of the matching groove (213) are spaced apart, the fourth side surface of the limiting portion (211) and the fourth side surface of the matching groove (213) are spaced apart, and the fifth side surface of the limiting portion (211) and the fifth side surface of the matching groove (213) are spaced apart.

4. The pipeline connection device according to claim 3, characterized in that: The fixing protrusion (221) comprises a first fixing portion (2211) and a second fixing portion (2212), wherein the first end of the first fixing portion (2211) is connected to the second flange (22), the second end of the first fixing portion (2211) is connected to the second fixing portion (2212), and the second fixing portion (2212) and the first fixing portion (2211) are vertically arranged.

5. The pipeline connection device according to claim 4, characterized in that: The arc length of the second fixing portion (2212) is smaller than the difference between the arc lengths of the matching groove (213) and the limiting portion (211); the length of the second fixing portion (2212) is smaller than or equal to the length of the limiting portion (211); and in the connected state, the second fixing portion (2212) abuts against the fifth side surface of the limiting portion (211) and the first side surface, the fifth side surface, the sixth side surface and the second side surface of the matching groove (213).

6. The pipeline connection device according to claim 1, characterized in that: The sealing structure (10) comprises a first sealing part (11) and a second sealing part (12); a first end of the first sealing part (11) and a first end of the second sealing part (12) are rotatably connected via a rotating shaft; a first connecting plate (111) is provided at the second end of the first sealing part (11), and a second connecting plate (121) is provided at the second end of the second sealing part (12).

7. The pipeline connection device according to claim 6, characterized in that: The first connecting plate (111) has a first threaded hole, the second connecting plate (121) has a second threaded hole, and the sealing structure (10) has a sealed state in which the screw is screwed together with the first threaded hole and the second threaded hole, or a non-sealed state in which the screw is separated from the first threaded hole and the second threaded hole.

8. The pipeline connection device according to claim 7, characterized in that: The first sealing portion (11) and the second sealing portion (12) are both arc-shaped plates. In the sealed state, the first sealing portion (11) and the second sealing portion (12) are arranged on the circumferential outer side of the flange structure (20). The first sealing portion (11) and the second sealing portion (12) both have an inner wall, an outer wall and two side walls. The sealing structure (10) includes a plurality of mounting holes (13). The plurality of mounting holes (13) are arranged at intervals on the two side walls of the first sealing portion (11) and the second sealing portion (12).

9. The pipeline connection device according to claim 8, characterized in that: The sealing structure (10) further comprises four groups of semi-annular baffles (14), wherein the semi-annular baffles (14) have a plurality of protrusions (141), the plurality of protrusions (141) are arranged at intervals along the circumference of the semi-annular baffles (14), and the plurality of protrusions (141) and the plurality of mounting holes (13) are arranged in a one-to-one correspondence.

10. The pipeline connection device according to claim 1, characterized in that: The flange structure (20) further comprises a sealing strip, wherein the sealing strip is arranged between the first flange plate (21) and the second flange plate (22).

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