Butt joint structure and metal sealing backing ring

Abstract

The utility model relates to the technical field of pipeline connection, in particular to a butt-joint structure and a metal sealing backing ring, which comprise a first butt-joint frame group and an inner sealing backing ring, one side of the first butt-joint frame group is in butt joint with a second butt-joint frame group, and an outer sealing backing ring is arranged in the butt-joint position of the first butt-joint frame group and the second butt-joint frame group. The first butt-joint frame set and the second butt-joint frame set are internally provided with inner connecting sleeves, and the inner sealing gasket rings are embedded in the surfaces of the ends, away from the inner connecting sleeves, of the auxiliary sealing gasket rings. The inner sealing gasket ring has the beneficial effects that the inner sealing gasket ring is embedded at the joint of the inner connecting sleeves which are in butt joint left and right, so that effective structural sealing can be formed by utilizing the structure of the inner sealing gasket ring, and an operator can conveniently disassemble and assemble the inner sealing gasket ring and the inner connecting sleeves by utilizing the structure of the inner sealing gasket ring; and the first butt joint frame set and the second butt joint frame set are used for fixing the inner connection sleeves which are in butt joint left and right, and meanwhile the sealing performance of the structure is further improved.

Description

Technical Field

[0001] The utility model relates to the field of pipeline connection, in particular to a butt joint structure and a metal sealing gasket ring. Background Art

[0002] In pipeline construction, a butt joint structure is generally used, that is, pipeline connection construction, which means connecting the prefabricated pipe sections into a complete system according to the requirements of the design drawings. In construction, different connection methods should be selected according to the material of the pipe used. Ordinary steel pipes have threaded connections, flange connections, welding connections, socket connections, pipe bonding connections and other methods. In the butt joint structure, metal sealing gaskets are used for structural assistance to ensure the stability and sealing of the structural connection;

[0003] Metal sealing gasket ring generally refers to metal ring gasket, which is a solid metal gasket. Metal ring gasket is a solid metal gasket with an octagonal or elliptical cross-section made of metal material, which has a radial self-tightening sealing function. Therefore, the metal ring gasket is in contact with the inner and outer sides (mainly the outer side) of the flange trapezoidal groove, and forms a seal through compression;

[0004] In conventional pipe docking, the sealing gasket ring located at the innermost part of the pipe docking structure is most likely to come into contact with the medium transported in the pipe. Therefore, it needs to be properly replaced and repaired during maintenance to ensure the sealing of the structure. However, the conventional metal sealing gasket ring requires special tools to operate and disassemble the structure after installation, which is time-consuming and labor-intensive, affecting work efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a butt joint structure and a metal sealing gasket ring to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A docking structure, the docking structure comprises: a first docking frame group, a second docking frame group, an outer sealing gasket ring, an inner sleeve, an auxiliary sealing gasket ring and an inner sealing gasket ring, one side of the first docking frame group is docked with the second docking frame group, and an outer sealing gasket ring is installed inside the docking point between the first docking frame group and the second docking frame group, and the first docking frame group and the second docking frame group are both installed with an inner sleeve, and an auxiliary sealing gasket ring is embedded inside one end of the inner sleeve, the inner sealing gasket ring is embedded in the end surface of the auxiliary sealing gasket ring away from the inner sleeve, the inner sealing gasket ring comprises a main sealing gasket ring, a limit block, a connecting pile and a secondary sealing gasket ring, the outer diameter surface of the main sealing gasket ring is provided with a ring-shaped array of limit blocks, and the inner wall surface of the main sealing gasket ring is provided with a ring-shaped array of connecting piles, and the end of the connecting pile away from the main sealing gasket ring is connected to the secondary sealing gasket ring.

[0008] Preferably, the first docking frame group includes a protective frame, a docking groove, a fixing pile, a docking pile and a supporting pile, the surface of one end of the protective frame close to the outer sealing gasket ring is provided with a docking groove, and the left and right side surfaces of the protective frame are provided with fixing piles, and the outer diameter surface of the protective frame is provided with a circular array of docking piles, and the surface of one end of the docking pile away from the docking groove is provided with supporting piles in a circular array.

[0009] Preferably, the surface structure of the docking groove matches the surface structure of the outer sealing gasket ring, and the fixed piles, docking piles and supporting piles are all arranged with an integral welded structure with the protective frame, and the second docking frame group has the same structure as the first docking frame group.

[0010] Preferably, the inner connecting sleeve comprises a butt sleeve, a sealing groove and an inlay groove, wherein the butt sleeve has an inlay groove on one side surface close to the inner sealing gasket ring, and the butt sleeve has an inlay groove on the inner wall surface at one end away from the inlay groove.

[0011] Preferably, the internal structure of the inlay groove matches the surface structure of the auxiliary sealing gasket ring, and the internal structure of the sealing groove matches the surface structure of one side of the inner sealing gasket ring.

[0012] Preferably, the annular array of the outer diameter surface of the auxiliary sealing gasket ring has four groups of trapezoidal structures, and the inner surface structure of the docking groove matches the side surface structure of the auxiliary sealing gasket ring.

[0013] Preferably, the outer diameter of one end of the internal sleeve away from the inner sealing gasket ring matches the inner diameter of the first docking frame group and the second docking frame group, and the outer surface structure of one end of the internal sleeve away from the inner sealing gasket ring matches the inner diameter surface structure of the first docking frame group and the second docking frame group.

[0014] Preferably, fixed anchor bolts are horizontally connected to the left and right sides of the joint between the first docking frame group and the second docking frame group, and bidirectional screw rods are installed in a circular array around the joint between the first docking frame group and the second docking frame group.

[0015] Preferably, the fixing anchor bolt horizontally penetrates the inner middle part of the fixing pile, and the docking pile and the supporting pile are both threadedly connected to the bidirectional screw rod.

[0016] A metal sealing gasket ring is installed with the above-mentioned butt joint structure.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The butt joint structure and metal sealing gasket ring proposed in the utility model are provided with an inner sealing gasket ring inlaid at the joint of the inner connecting sleeves of the left and right butt joint combinations, wherein the entire inner sealing gasket ring adopts a connecting pile to connect the main sealing gasket ring and the sealing gasket ring to each other and keep them on a concentric circle structure. Therefore, when the entire inner sealing gasket ring is embedded in the sealing groove opened on the surface of a section of the butt joint sleeve, the main sealing gasket ring and the secondary sealing gasket ring will form a double annular sealing structure, thereby maximally ensuring the structural sealing of the joint when the external pipeline is structurally butt jointed through the inner connecting sleeve, and the limit blocks arranged in an annular array on the outer diameter surface of the main sealing gasket ring can So that when the entire inner sealing gasket ring is embedded in the sealing groove, it can maintain a sufficient structural contact area, and use the limit block to form a structural fixation to avoid unnecessary problems such as the inner sealing gasket ring being cheap between the left and right inner connecting sleeves after docking. In addition, since the secondary sealing gasket ring and the main sealing gasket ring are arranged in a concentric circle structure, the inner diameter of the secondary sealing gasket ring will be slightly smaller than the inner diameter of the docking sleeve. Therefore, part of the structure of the secondary sealing gasket ring will protrude from the inner wall surface of the docking sleeve, so that the operator can disassemble or assemble the inner sealing gasket ring and the inner connecting sleeve to avoid the situation where the structure is too tight and cannot be separated.

[0019] The docking structure and metal sealing gasket ring proposed by the utility model are respectively inlaid with outer sealing gasket rings on the surfaces of the opposite ends of the first docking frame group and the second docking frame group, so that when the first docking frame group and the second docking frame group are structurally docked, the sealing of the docking structure can be guaranteed to the greatest extent. At the same time, since the first docking frame group and the second docking frame group are respectively sleeved on the outer surfaces of the inner connecting sleeves of the left and right docking, further structural sealing protection is provided for the combined structure to reduce the occurrence of structural leakage. In addition, by providing four groups of trapezoidal structures in an annular array on the outer diameter surface of the outer sealing gasket ring, the stability of the structural installation can be guaranteed to the greatest extent when the outer sealing gasket ring is inlaid in the docking groove. In addition, by providing an inlay groove on the inner wall of the docking sleeve, the auxiliary sealing gasket ring can be flexibly docked with the inner connecting sleeve for structural combination, so that the pipeline docked and installed with the inner connecting sleeve can maximize the stability and tightness of the structural connection, while also ensuring the sealing between the structures, so that the laid pipeline is effectively guaranteed.

[0020] The docking structure and metal sealing gasket ring proposed by the utility model are characterized by symmetrically arranging fixed piles on the outer diameter surfaces of the first docking frame group and the second docking frame group, and the annular array has four groups of docking piles and supporting piles. Therefore, the fixed anchor bolts are horizontally penetrated and installed in the fixed piles on the left and right sides of the first docking frame group and the second docking frame group, and the bidirectional screw rod is horizontally axially rotated so that the docking piles and the supporting piles can be translated left and right along their surfaces. On the one hand, this structure can realize the structural docking or separation of the first docking frame group and the second docking frame group. On the other hand, this simple mechanical connection structure can effectively ensure the tightness and structural firmness of the first docking frame group and the second docking frame group after the structural docking while controlling the production cost, and avoid structural loosening due to external factors. At the same time, the use of the fixed anchor bolts and the bidirectional screw rod in conjunction with the first docking frame group and the second docking frame group can ensure the structural stability and structural strength of the joint after the pipeline is docked to the greatest extent, and avoid leakage caused by structural damage at the joint due to external forces. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an exploded three-dimensional schematic diagram of part of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model body;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the first docking frame assembly of the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the internal sleeve of the utility model;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the inner sealing gasket ring of the utility model.

[0026] In the figure: 1, first docking frame group; 101, protection frame; 102, docking groove; 103, fixing pile; 104,

[0027] Docking pile; 105, supporting pile; 2, second docking frame assembly; 3, outer sealing gasket ring; 4, inner connecting sleeve;

[0028] 401, docking sleeve; 402, sealing groove; 403, inlay groove; 5, auxiliary sealing gasket; 6, inner sealing gasket; 601, main sealing gasket; 602, limit block; 603, connecting pile; 604, secondary sealing gasket; 7, fixing anchor bolt; 8, bidirectional screw. DETAILED DESCRIPTION

[0029] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Embodiment 1

[0031] See also Figure 1-Figure 5 The utility model provides a technical solution: a docking structure, the docking structure comprising: a first docking frame group 1, a second docking frame group 2, an outer sealing gasket ring 3, an inner sleeve 4, an auxiliary sealing gasket ring 5 and an inner sealing gasket ring 6, one side of the first docking frame group 1 is docked with the second docking frame group 2, and the outer sealing gasket ring 3 is installed inside the docking place of the first docking frame group 1 and the second docking frame group 2, and the inner sleeve 4 is installed inside the first docking frame group 1 and the second docking frame group 2, and the auxiliary sealing gasket ring 5 is embedded inside one end of the inner sleeve 4, and the inner sealing gasket ring 6 is embedded in the surface of the end of the auxiliary sealing gasket ring 5 away from the inner sleeve 4, the inner sealing gasket ring 6 comprises a main sealing gasket ring 601, a limit block 602, a connecting pile 603 and a secondary sealing gasket ring 604, the outer diameter of the main sealing gasket ring 601 is The surface of the annular array limit block 602 is provided, and the inner wall surface of the main sealing gasket ring 601 is provided with a connecting pile 603 in an annular array, and the end of the connecting pile 603 away from the main sealing gasket ring 601 is connected to the secondary sealing gasket ring 604, and the inner sealing gasket ring 6 is embedded in the connection of the inner connecting sleeve 4 of the left and right docking combination, wherein the entire inner sealing gasket ring 6 uses the connecting pile 603 to connect the main sealing gasket ring 601 and the secondary sealing gasket ring 604 to each other and keep them in a concentric circle structure. Therefore, when the entire inner sealing gasket ring 6 is embedded in the sealing groove 402 opened on a surface of a section of the docking sleeve 401, the main sealing gasket ring 601 and the secondary sealing gasket ring 604 will form a double annular sealing structure, thereby maximally ensuring the structural sealing of the connection when the external pipeline is structurally docked through the inner connecting sleeve 4.

[0032] Embodiment 2

[0033] On the basis of the first embodiment, the first docking frame group 1 includes a protective frame 101, a docking groove 102, a fixing pile 103, a docking pile 104 and a supporting pile 105. The surface of one end of the protective frame 101 close to the outer sealing gasket ring 3 is provided with a docking groove 102, and the left and right side surfaces of the protective frame 101 are provided with fixing piles 103, and the outer diameter surface of the protective frame 101 is provided with a circular array of docking piles 104, and the surface of one end of the docking pile 104 away from the docking groove 102 is provided with a supporting pile 105 in a circular array, the inner sleeve 4 includes a docking sleeve 401, a sealing groove 402 and an inlay groove 403, the surface of one side of the docking sleeve 401 close to the inner sealing gasket ring 6 is provided with an inlay groove 403, and the inner wall surface of the end of the docking sleeve 401 away from the inlay groove 403 is provided with an inlay groove 403, and the inlay groove 403 is provided. The internal structure of the groove 403 matches the surface structure of the auxiliary sealing gasket ring 5, the internal structure of the sealing groove 402 matches the surface structure of one side of the inner sealing gasket ring 6, the outer diameter surface annular array of the auxiliary sealing gasket ring 5 has four groups of trapezoidal structures, and the inner surface structure of the docking groove 102 matches the side surface structure of the auxiliary sealing gasket ring 5. The outer sealing gasket ring 3 is inlaid on the surface of the opposite end of the first docking frame group 1 and the second docking frame group 2, so that when the first docking frame group 1 and the second docking frame group 2 are structurally docked, the sealing of the docking structure can be guaranteed to the greatest extent. At the same time, since the first docking frame group 1 and the second docking frame group 2 are respectively sleeved on the outer surface of the inner connecting sleeve 4 of the left and right docking, further structural sealing protection is provided for the combined structure to reduce the occurrence of structural leakage.

[0034] Embodiment 3

[0035] On the basis of the second embodiment, the surface structure of the docking groove 102 matches the surface structure of the outer sealing gasket ring 3, and the fixing pile 103, the docking pile 104 and the supporting pile 105 are all arranged with the protective frame 101 by an integral welding structure, the second docking frame group 2 has the same structure as the first docking frame group 1, the outer diameter of the end of the inner sleeve 4 away from the inner sealing gasket ring 6 matches the inner diameter of the first docking frame group 1 and the second docking frame group 2, and the outer surface structure of the end of the inner sleeve 4 away from the inner sealing gasket ring 6 matches the inner diameter surface structure of the first docking frame group 1 and the second docking frame group 2, the left and right sides of the docking point of the first docking frame group 1 and the second docking frame group 2 are horizontally connected with fixing anchor bolts 7, and the docking point of the first docking frame group 1 and the second docking frame group 2 A bidirectional screw rod 8 is installed in a circular array around the fixing pile 103, and the fixing anchor bolt 7 horizontally penetrates the inner middle part of the fixing pile 103. The docking pile 104 and the supporting pile 105 are both threadedly connected to the bidirectional screw rod 8. The fixing piles 103 are symmetrically arranged on the outer diameter surfaces of the first docking frame group 1 and the second docking frame group 2, and the circular array has four groups of docking piles 104 and supporting piles 105. Therefore, the fixing anchor bolt 7 is horizontally penetrated and installed in the fixing piles 103 on the left and right sides of the first docking frame group 1 and the second docking frame group 2, respectively, and the bidirectional screw rod 8 is horizontally axially rotated so that the docking pile 104 and the supporting pile 105 will translate left and right along its surface. On the one hand, this structure can realize the structural docking or separation of the first docking frame group 1 and the second docking frame group 2.

[0036] In actual use, firstly, two sets of outer sealing gasket rings 3 are respectively embedded in the docking grooves 102 on the opposite sides of the first docking frame set 1 and the second docking frame set 2, and then two sets of auxiliary sealing gasket rings 5 ​​are respectively installed in the inlay grooves 403 opened on the inner walls of one end of the two sets of docking sleeves 401;

[0037] Then, the two groups of inner sleeves 4 equipped with auxiliary sealing gaskets 5 are respectively inserted and docked with the first docking frame group 1 and the second docking frame group 2, and then the pipes to be docked are respectively inserted into the inner sleeves 4 on the left and right sides, and with the assistance of the auxiliary sealing gaskets 5, the tightness and sealing of the docking between the pipes and the docking sleeves 401 are ensured;

[0038] At this time, the bidirectional screw rods 8 of the annular array on the outer diameter surface of the first docking frame group 1 and the second docking frame group 2 are respectively screwed, and the threaded connection between the docking piles 104 and the support piles 105 and the bidirectional screw rods 8 is used to make the entire first docking frame group 1 and the second docking frame group 2 drive the inner sleeves 4 to move toward the center. When they are close to a certain distance, one side of the inner sealing gasket ring 6 is embedded in one end of the docking sleeve 401 with a sealing groove 402, and the bidirectional screw rods 8 are screwed again, so that the inner sleeve 4 on the other side is horizontally docked with the inner sleeve 4 on the side where the inner sealing gasket ring 6 is installed, until the structural docking reaches the required tightness, and finally the fixing anchor bolts 7 are used to horizontally penetrate the fixing piles 103 on the sides of the first docking frame group 1 and the second docking frame group 2, so as to complete the structural fixation, so that the pipelines can complete effective docking;

[0039] In addition, the limiting blocks 602 in the annular array on the outer diameter surface of the main sealing gasket ring 601 can enable the entire inner sealing gasket ring 6 to be embedded in the sealing groove 402, maintain sufficient structural contact, and form a structural fixation. Since the secondary sealing gasket ring 604 and the main sealing gasket ring 601 are arranged in a concentric circle structure, the inner diameter of the secondary sealing gasket ring 604 will be slightly smaller than the inner diameter of the docking sleeve 401, and part of the structure of the docking sleeve 401 will protrude from the inner wall surface of the docking sleeve 401, so that the operator can disassemble or assemble the inner sealing gasket ring 6 and the inner connecting sleeve 4.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A docking structure, characterized in that: The docking structure comprises: a first docking frame group (1), a second docking frame group (2), an outer sealing gasket ring (3), an inner connecting sleeve (4), an auxiliary sealing gasket ring (5) and an inner sealing gasket ring (6); one side of the first docking frame group (1) is docked with the second docking frame group (2); the outer sealing gasket ring (3) is installed inside the docking position of the first docking frame group (1) and the second docking frame group (2); the inner connecting sleeve (4) is installed inside the first docking frame group (1) and the second docking frame group (2); and one end of the inner connecting sleeve (4) is inlaid with the auxiliary sealing gasket ring (5). ), the inner sealing gasket (6) is embedded in the end surface of the auxiliary sealing gasket (5) away from the inner sleeve (4), the inner sealing gasket (6) comprises a main sealing gasket (601), a limit block (602), a connecting pile (603) and a secondary sealing gasket (604), the outer diameter surface of the main sealing gasket (601) has an annular array of limit blocks (602), and the inner wall surface of the main sealing gasket (601) has an annular array of connecting piles (603), and the end of the connecting pile (603) away from the main sealing gasket (601) is connected to the secondary sealing gasket (604).

2. A docking structure according to claim 1, characterized in that: The first docking frame group (1) comprises a protective frame (101), a docking groove (102), a fixing pile (103), a docking pile (104) and a supporting pile (105); a docking groove (102) is provided on one end surface of the protective frame (101) close to the outer sealing gasket ring (3); and fixing piles (103) are provided on the left and right side surfaces of the protective frame (101); and docking piles (104) are provided in an annular array on the outer diameter surface of the protective frame (101); and supporting piles (105) are provided in an annular array on one end surface of the docking pile (104) away from the docking groove (102).

3. A docking structure according to claim 2, characterized in that: The surface structure of the docking groove (102) matches the surface structure of the outer sealing gasket ring (3), and the fixing pile (103), the docking pile (104) and the supporting pile (105) are all arranged with the protection frame (101) in an integrally welded structure, and the second docking frame group (2) and the first docking frame group (1) have the same structure.

4. A docking structure according to claim 1, characterized in that: The inner connecting sleeve (4) comprises a butt sleeve (401), a sealing groove (402) and an embedding groove (403); a embedding groove (403) is provided on a surface of one side of the butt sleeve (401) close to the inner sealing gasket ring (6), and a embedding groove (403) is provided on an inner wall surface of an end of the butt sleeve (401) away from the embedding groove (403).

5. A docking structure according to claim 4, characterized in that: The internal structure of the embedding groove (403) matches the surface structure of the auxiliary sealing gasket ring (5), and the internal structure of the sealing groove (402) matches the surface structure of one side of the inner sealing gasket ring (6).

6. A docking structure according to claim 2, characterized in that: The annular array of the outer diameter surface of the auxiliary sealing gasket ring (5) has four groups of trapezoidal structures, and the inner surface structure of the docking groove (102) matches the side surface structure of the auxiliary sealing gasket ring (5).

7. A docking structure according to claim 1, characterized in that: The outer diameter of the end of the inner sleeve (4) away from the inner sealing gasket (6) matches the inner diameter of the first docking frame group (1) and the second docking frame group (2), and the outer surface structure of the end of the inner sleeve (4) away from the inner sealing gasket (6) matches the inner diameter surface structure of the first docking frame group (1) and the second docking frame group (2).

8. A docking structure according to claim 2, characterized in that: The left and right sides of the docking point between the first docking frame group (1) and the second docking frame group (2) are horizontally connected with fixing anchor bolts (7), and a bidirectional screw rod (8) is installed in a circular array around the docking point between the first docking frame group (1) and the second docking frame group (2).

9. A docking structure according to claim 8, characterized in that: The fixing anchor bolt (7) horizontally penetrates the inner middle part of the fixing pile (103), and the docking pile (104) and the supporting pile (105) are both threadedly connected to the bidirectional screw rod (8).

10. A metal sealing gasket ring, characterized in that: The metal sealing gasket ring is installed with a docking structure as described in any one of claims 1-9.

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