Sealing mechanism

Abstract

The invention relates to a sealing mechanism. The sealing mechanism comprises an elastic sealing piece and a fastening piece, and the elastic sealing piece is of an annular structure and used for wrapping the pipeline connecting position. A sealing groove is formed in the inner wall of the fastening piece, and the elastic sealing piece is embedded in the sealing groove; an elastic sealing protrusion is arranged in at least one of the elastic sealing piece and the fastening piece and used for abutting against the other one of the elastic sealing piece and the fastening piece. The fastening piece presses the elastic sealing piece at the pipeline connecting position, the elastic sealing piece can tightly wrap the pipeline connecting position, and a first sealing defensive line is formed. After the elastic sealing piece is embedded into the sealing groove of the fastening piece, when slight height difference and structural deformation exist between pipelines, the elastic sealing protrusion can abut against an opposite component, and the sealing contact area and the sealing tightness degree are further increased; therefore, media in the pipeline are effectively prevented from leaking into the external environment, media in the external environment are effectively prevented from leaking into the pipeline, and multiple sealing guarantees are formed.

Description

Technical Field

[0001] The present application relates to the technical field of sealing structures, and particularly to a sealing mechanism. Background Art

[0002] In engineering applications, there are many problems in the sealing technology for cable pipeline connections.

[0003] Currently, the main connection methods for cable pipelines are as follows: First, metal fasteners are used for connection. This connection method does not have a waterproof sealing function. In working conditions such as when the pipeline is buried underground or underwater, rainwater and groundwater can easily seep into the pipeline, resulting in faults such as short circuits of the lines due to water immersion and aging of components, seriously affecting the normal operation of the lines in the pipeline. Second, some cable pipeline connections use cured adhesives for sealing. However, the cured adhesives permanently connect the pipelines, making it inconvenient to disassemble during maintenance. Third, the pipeline components use a flange connection structure. By grooving the flange connection surface and installing conventional elastic seals such as flat gaskets and O-rings made of nitrile rubber for sealing, due to the generally poor machining and assembly accuracy of the pipelines, it is difficult to ensure that the compression amount and filling amount of the elastic seals meet the working requirements, and thus leakage is likely to occur. In addition, the aging of the elastic seals themselves will also cause the sealing to fail, and there are also problems such as long flange processing cycles and high costs, and it is extremely difficult to perform maintenance and disassembly in a limited space. This not only increases the project cost but also causes great inconvenience to later maintenance. Summary of the Invention

[0004] Based on this, a sealing mechanism is provided to solve the problems of leakage and the influence of pipeline machining and assembly accuracy on the sealing effect in the existing pipeline connection sealing technology.

[0005] An embodiment of the present application provides a sealing mechanism, including:

[0006] An elastic seal, the elastic seal is in a ring structure and is used to wrap the pipeline connection;

[0007] A fastening member, a sealing groove is provided on the inner wall of the fastening member, and the elastic seal is embedded in the sealing groove;

[0008] At least one of the elastic seal and the fastening member is provided with an elastic sealing protrusion for abutting against the other of the elastic seal and the fastening member.

[0009] In one of the embodiments, the elastic seal includes:

[0010] An elastic sealing body and a connecting member, the elastic sealing body is provided with opposite first and second ends, the first end is provided with a connecting groove; the connecting member is disposed at the second end and can be inserted into the connecting groove; wherein, the first end and the second end of the elastic sealing body are connected to form the annular structure, and the connecting member is locked and fixed in the connecting groove; or

[0011] The elastic sealing member includes an integral elastic sealing ring.

[0012] In one embodiment, the connecting member includes:

[0013] A connecting body, the connecting body is fixed to the second end;

[0014] A compressive support member, the compressive support member is disposed on the connecting body.

[0015] In one embodiment, the connecting body is provided with a first cavity, and the compressive support member is disposed in the first cavity.

[0016] In one embodiment, the end face of the elastic sealing body is provided with a second cavity, and the second cavity is communicated with the first cavity;

[0017] One end of the compressive support member is disposed in the first cavity, and the other end is disposed in the second cavity.

[0018] In one embodiment, a first adhesive layer is bonded between the compressive support member and the inner wall of the first cavity; and / or

[0019] A second adhesive layer is bonded between the compressive support member and the inner wall of the second cavity.

[0020] In one embodiment, the connecting groove is configured as a dovetail groove made of a first elastic material, and the connecting member is configured as a dovetail tenon made of a second elastic material;

[0021] The dovetail tenon can extend into the dovetail groove and is in interference fit with the dovetail groove, so that the dovetail tenon is locked and fixed in the connecting groove.

[0022] In one embodiment, the fastening member is provided with a first fastening sealing surface and a second fastening sealing surface along the axial direction of the pipeline, the first fastening sealing surface is used for abutting against the outer wall surface of one pipeline, and the second fastening sealing surface is used for abutting against the outer wall surface of the other pipeline;

[0023] The sealing groove is disposed between the first fastening sealing surface and the second fastening sealing surface.

[0024] In one embodiment, the sealing groove includes:

[0025] a bottom wall of the groove, which is used to abut against the circumferential outer wall surface of the elastic seal;

[0026] a side wall of the groove, which is used to abut against the axial end face of the elastic seal;

[0027] Wherein, the elastic sealing protrusion is arranged between the bottom wall of the groove and the circumferential outer wall surface of the elastic seal.

[0028] In one embodiment, the circumferential outer wall surface of the elastic seal is provided with the elastic sealing protrusion facing the bottom wall of the groove; and / or

[0029] the bottom wall of the groove is provided with the elastic sealing protrusion facing the circumferential outer wall surface of the elastic seal.

[0030] In one embodiment, when the circumferential outer wall surface of the elastic seal is provided with the elastic sealing protrusion facing the bottom wall of the groove, the elastic sealing protrusion is integrally formed with the elastic seal.

[0031] In one embodiment, the elastic sealing protrusion includes an annular sealing protrusion or a circular sealing protrusion; and / or

[0032] the cross section of the elastic sealing protrusion includes a semi-circular shape or a rectangular shape.

[0033] In one embodiment, a plurality of the elastic sealing protrusions are provided;

[0034] At least one of the elastic sealing protrusions is provided on each side of the pipe connection.

[0035] In one embodiment, the fastening member includes:

[0036] a first fastening body, which is provided with a first groove;

[0037] a second fastening body, which is provided with a second groove, the first fastening body is used to be fastened to the second fastening body, and the first groove and the second groove enclose to form the sealing groove;

[0038] a locking member, which locks and fixes the first fastening body and the second fastening body.

[0039] According to the sealing mechanism of the embodiments of the present application, the elastic seal itself is in a ring structure, which can tightly wrap the pipe connection, forming the first sealing line of defense; when the elastic seal is embedded in the sealing groove of the fastening member, the elastic sealing protrusion will abut against the opposite component, further increasing the sealing contact area and the tightness of the seal, equivalent to adding a sealing line of defense on the original seal basis, thus effectively preventing the medium in the pipe from leaking into the external environment and the medium in the external environment from leaking into the pipe, forming multiple sealing guarantees. Since both the elastic seal and the elastic sealing protrusion have elasticity, when the pipe undergoes slight deformation due to factors such as temperature change and external force, resulting in bending at the pipe connection, the elastic seal and the elastic sealing protrusion can adapt to this change through their own elastic deformation, always maintaining close contact with the pipe and the fastening member, maintaining a good sealing effect, making up for the engineering problems of generally low machining accuracy and slight structural deformation existing in pipes, and ensuring effective sealing at the pipe connection part. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 FIG. is a schematic structural view of the sealing mechanism connecting a pipe according to an embodiment of the present application.

[0041] Figure 2 FIG. is a cross-sectional view of the sealing mechanism according to an embodiment of the present application.

[0042] Figure 3 is Figure 2 a partial enlarged view of portion A in

[0043] Figure 4 FIG. is a schematic structural view of the fastening member provided with an elastic sealing protrusion in the sealing mechanism according to an embodiment of the present application.

[0044] Figure 5 FIG. is a schematic structural view of the elastic seal and the fastening member both provided with elastic sealing protrusions in the sealing mechanism according to an embodiment of the present application.

[0045] Figure 6 FIG. is a schematic structural view of the elastic seal in the sealing mechanism according to an embodiment of the present application.

[0046] Figure 7 FIG. is a cross-sectional view of the elastic seal in the sealing mechanism according to an embodiment of the present application.

[0047] Figure 8 FIG. is a schematic structural view of the first end and the second end of the elastic seal in the sealing mechanism according to an embodiment of the present application after being connected.

[0048] Figure 9 is Figure 8 a partial enlarged view of portion B in

[0049] Figure 10Schematic structural diagram of the integral elastic sealing ring in the sealing mechanism according to an embodiment of the present application.

[0050] Figure 11 Partial cross-sectional view of the elastic seal in the sealing mechanism according to an embodiment of the present application.

[0051] Figure 12 Partial structural schematic diagram showing the sealing groove in the sealing mechanism according to an embodiment of the present application.

[0052] Figure 13 Schematic structural diagram showing the annular sealing projection and the circular sealing projection in the sealing mechanism according to an embodiment of the present application.

[0053] Figure 14 Cross-sectional view showing the annular sealing projection and the circular sealing projection in the sealing mechanism according to an embodiment of the present application.

[0054] Figure 15 Explosion schematic diagram of the sealing mechanism according to an embodiment of the present application.

[0055] Figure 16 Partial structural schematic diagram showing the locking member in the sealing mechanism according to an embodiment of the present application.

[0056] Figure 17 Another cross-sectional view of the sealing mechanism according to an embodiment of the present application.

[0057] Figure 18 For Figure 17 Partial enlarged schematic diagram at position C in

[0058] Reference numerals:

[0059] 1000, sealing mechanism;

[0060] 100, elastic seal; 110, elastic seal body; 111, first end; 1111, connecting groove; 112, second end; 1121, second cavity; 120, connecting member; 121, connecting body; 1211, first cavity; 122, compressive support member;

[0061] 200, fastening member; 201, sealing groove; 2011, groove bottom wall; 2012, groove side wall; 202, first fastening sealing surface; 203, second fastening sealing surface; 204, reinforcing stirrup; 210, first fastening body; 211, first groove; 220, second fastening body; 221, second groove; 230, locking member; 231, first support plate; 232, first locking seat; 2321, first locking hole; 233, second support plate; 234, second locking seat; 2341, second locking hole;

[0062] 300, Elastic sealing protrusion; 310, Ring-shaped sealing protrusion; 320, Circular sealing protrusion;

[0063] 2000, Pipeline. Detailed implementation manners

[0064] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0065] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0066] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plural", the meaning of "plural" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0067] In the present application, unless otherwise clearly defined and limited, if there are terms such as "installation", "connection", "connection", "fixation", etc., these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0068] In this application, unless otherwise clearly specified and defined, when a first feature is described as being "on" or "under" a second feature or similar descriptions, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0069] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0070] In the engineering application scenario, there are various pipeline connection sealing technologies for cable pipelines and lubrication systems, but there are some problems with all of them:

[0071] Metal fastener connections are commonly used in engineering for cable pipeline connections. The advantage of this connection method is that it is relatively convenient to install and can quickly connect and fix the cable pipelines. However, its biggest problem is that it does not have a waterproof sealing function. In actual use, cable pipelines are often in environments such as below the ground or underwater. When using metal fastener connections, external rainwater, groundwater, etc. can easily enter the pipeline interior along the connection gaps. This will not only cause the lines in the pipeline to be soaked in water, leading to short-circuit faults, but may also cause the components in the pipeline to be eroded by sewage and age, seriously affecting the normal operation and service life of the cable pipeline.

[0072] Some cable pipelines will choose to use curing adhesives for sealing when connecting. The curing adhesive can fill the gaps at the pipeline connection part and, to a certain extent, prevent moisture and pollutants from entering the pipeline interior, playing a sealing role. However, the curing adhesive permanently connects the pipelines, making it inconvenient to disassemble during pipeline maintenance. Moreover, after the adhesive cures, it may age and crack due to long-term environmental factors such as temperature changes and humidity changes, thereby reducing the sealing performance.

[0073] In addition, flange structures are usually adopted for pipe connections, and conventional seals such as flat gaskets and O-rings made of nitrile rubber are installed in grooves on the flange end faces for sealing. On the one hand, the processing technology of flanges is relatively complex, requiring precise grooving on the end faces, with a long processing cycle and high costs. On the other hand, in some working scenarios with limited space, if a pipe fails and needs to be repaired and disassembled, due to the relatively complex flange structure and limited operating space, it will bring great difficulties to the repair work, increasing the maintenance cost and time. At the same time, the processing and assembly accuracy of pipes are generally poor, making it difficult to ensure that the compression and filling amounts of the seals meet the working requirements, thus prone to leakage. Moreover, the aging of the seals themselves will also cause seal failure.

[0074] Based on the above considerations, in order to alleviate the above problems, through in-depth research, the inventor designed a sealing mechanism 1000, which has a good sealing effect through the cooperation of an elastic seal 100, a fastening member 200, and an elastic sealing protrusion 300.

[0075] Refer to Figure 1 and Figure 2 , at least one embodiment of the present application provides a sealing mechanism 1000, which includes an elastic seal 100 and a fastening member 200. The elastic seal 100 is in a ring structure and is used to wrap the connection of the pipes 2000, specifically the connection of two adjacent pipes 2000. The inner wall of the fastening member 200 is provided with a sealing groove 201 for the elastic seal 100 to be embedded. At least one of the elastic seal 100 and the fastening member 200 is provided with an elastic sealing protrusion 300 for abutting against the other of the elastic seal 100 and the fastening member 200.

[0076] In some embodiments, refer to Figure 3 , when the elastic sealing protrusion 300 is provided on the elastic seal 100, it is used to abut against the fastening member 200; refer to Figure 4 , when the elastic sealing protrusion 300 is provided on the fastening member 200, it is used to abut against the elastic seal 100. It can be understood that, refer to Figure 5 , while the elastic sealing protrusion 300 is provided on the elastic seal 100, the elastic sealing protrusion 300 can also be provided on the fastening member 200, as long as the elastic sealing protrusions 300 on the elastic seal 100 and the fastening member 200 are arranged staggeredly to avoid mutual interference.

[0077] According to the sealing mechanism 1000 of the embodiments of the present application, the fastening member 200 presses the elastic sealing member 100 against the connection of the pipeline 2000. The elastic sealing member 100 is in an annular structure and can tightly cover the connection of the pipeline 2000, forming a first sealing line of defense between the contact surfaces of the elastic sealing member 100 and the pipeline 2000 respectively, and a second sealing line of defense between the contact surfaces of the elastic sealing member 100 and the fastening member 200; the sealing groove 201 can completely accommodate the elastic sealing member 100. When the elastic sealing member 100 is embedded in the sealing groove 201 of the fastening member 200, in the axial direction of the pipeline 2000, due to the setting of the sealing groove 201, both axial sides of the fastening member 200 tightly cover the axial ends of the elastic sealing member 100, forming a third sealing line of defense; and when there is a slight height difference and structural deformation between the pipelines 2000, the elastic sealing protrusion 300 will abut against the relative component, further increasing the sealing contact area and the tightness of the seal, which is equivalent to adding a sealing line of defense on the original seal basis. Thus, when there is a medium inside the pipeline 2000, it effectively prevents the medium inside the pipeline 2000 from leaking to the external environment, and when the inside of the pipeline 2000 is a circuit, it effectively prevents the medium in the external environment from leaking into the pipeline 2000, forming multiple sealing guarantees. Since both the elastic sealing member 100 and the elastic sealing protrusion 300 have elasticity, when the pipeline 2000 undergoes slight deformation due to factors such as temperature change and external force, resulting in a bending phenomenon at the connection of the pipeline 2000, the elastic sealing member 100 and the elastic sealing protrusion 300 can adapt to this change through their own elastic deformation, always maintaining close contact with the pipeline 2000 and the fastening member 200, maintaining a good sealing effect, and making up for the engineering problems of the pipeline 2000 generally having a certain low machining accuracy and slight structural deformation, ensuring the effective sealing of the connection part of the pipeline 2000.

[0078] In addition, the abutment of the elastic sealing protrusion 300 against the relative component makes the cooperation between the elastic sealing member 100 and the fastening member 200 closer and more stable. This tight cooperation can prevent the elastic sealing member 100 from shifting or loosening under the action of external force or external vibration of the pipeline 2000, ensuring the reliability and stability of the sealing mechanism 1000 during long-term use. Since the elastic sealing member 100 has a certain elastic deformation ability, the sealing mechanism 1000 can adapt to the connection of pipelines 2000 with different diameters within a certain range, without specifically designing and manufacturing a sealing mechanism 1000 for each diameter of the pipeline 2000, improving the versatility and economy of the sealing mechanism 1000.

[0079] It can be understood that in the elastic seal 100 and the elastic sealing projection 300 in the embodiments of the present application, elasticity refers to the property of a material that can return to its original shape and size when the external force is removed after being deformed under the action of the force. In the sealing mechanism 1000, the materials used for the elastic seal 100 and the elastic sealing projection 300 are usually polymer materials such as rubber and polyurethane with good elasticity. The elastic structures of these materials have a certain flexibility and deformability. When subjected to an external force, they will deform, but after the external force disappears, they will return to the initial state.

[0080] Specifically, the elastic seal 100 has an annular structure for covering the connection of the pipeline 2000. Its elasticity enables it to be expanded and sleeved on the pipeline 2000 during installation, and then tightly fit on the surface of the pipeline 2000 by relying on its own elastic contraction force. Even if there are certain dimensional tolerances in the outer diameter of the pipeline 2000, the elastic seal 100 can adaptively adjust the contact pressure with the pipeline 2000 through elastic deformation to ensure the tightness of the seal. In actual use, the pipeline 2000 may undergo slight deformation due to factors such as temperature change, external force, or external vibration. The elasticity of the elastic seal 100 enables it to change its shape accordingly with the deformation of the pipeline 2000, always maintaining good contact with the pipeline 2000, avoiding the appearance of gaps due to the deformation of the pipeline 2000, and thus ensuring the stability of the sealing effect. During the assembly process of the sealing mechanism 1000, there may be certain assembly errors, such as the concentricity deviation between the elastic seal 100 and the pipeline 2000. The elasticity of the elastic seal 100 can compensate for these errors to a certain extent, adjust its position and shape through its own deformation, and enable the sealing mechanism 1000 to work properly.

[0081] Specifically, the elastic sealing projection 300 is provided in at least one of the elastic seal 100 and the fastening member 200 for abutting against the other. Its elasticity enables the elastic sealing projection 300 to be compressed during the installation of the sealing mechanism 1000, generating an elastic reaction force, thereby increasing the contact pressure with the relative component. This larger contact pressure can effectively prevent the leakage of the medium and improve the sealing performance. There may be certain roughness or slight unevenness on the surfaces of the fastening member 200 and the elastic seal 100. The elasticity of the elastic sealing projection 300 enables it to fill the small depressions on the surface through deformation when contacting these uneven surfaces, forming a tight or continuous sealing line, further improving the reliability of the seal.

[0082] In some embodiments, the elastic seal 100 is used in conjunction with the fastening member 200, and the design should meet the requirement that after the fastening member 200 is locked, the cross-section of the elastic seal 100 is compressed by no less than 25% in the direction perpendicular to the pipe extension direction. The direction perpendicular to the pipe extension direction is also the radial direction of the pipe. This ensures that the elastic seal 100 can undergo sufficient elastic deformation when being squeezed by the fastening member 200. By fully compressing the elastic seal 100, it can closely fit between the outer wall of the pipe 2000 and the inner wall of the fastening member 200, filling the possible gaps, thereby forming an effective sealing barrier. If the compression amount is less than 25%, the elastic seal 100 may not be able to deform sufficiently to fill the gaps, resulting in a decline in sealing performance, and the medium inside the pipe 2000 is likely to leak and the medium in the external environment leaks into the pipe 2000.

[0083] In some embodiments, the elastic seal 100 is made of a long-life sealing material, and in combination with the actual working conditions, a compression amount of 25%-35% and a filling amount of 80%-90% are selected to achieve a long service life and a reliable sealing effect.

[0084] In some embodiments, the cross-sectional area of the elastic seal 100 is not less than 75% of the installation space between the pipe 2000 and the fastening member 200. This ensures that the elastic seal 100 occupies a sufficient volume in the installation space. A larger cross-sectional area means that the elastic seal 100 can better fill the space between the pipe 2000 and the fastening member 200, reducing the leakage channels. When the cross-sectional area of the elastic seal 100 reaches more than 75% of the installation space, it can effectively reduce the possibility of the medium leaking through the tiny gaps between the elastic seal 100, the pipe 2000, and the fastening member 200.

[0085] It can be understood that the provision of the elastic sealing protrusion 300 can reduce the sacrifice of the service life of the overall elastic seal 100 caused by increasing the compression amount, compared with increasing the compression amount and filling amount of the overall elastic seal 100. Specifically, increasing the compression amount and filling amount of the overall elastic seal 100 can indeed enhance the sealing effect to a certain extent, because a larger compression amount and filling amount can make the elastic seal 100 fit more closely to the pipeline 2000 and the fastening member 200, reducing the leakage gap. However, excessive compression will cause greater stress on the elastic seal 100. When the elastic seal 100 is in a high-stress state for a long time, the polymer chains inside it will gradually fatigue and break, accelerating the aging and deformation of the elastic seal 100, resulting in the loss of elasticity of the elastic seal 100 and its inability to return to the initial shape, thereby shortening the service life. The elastic sealing protrusion 300 fills the sealing gap through its own elastic deformation to achieve the purpose of enhancing the sealing effect. Different from increasing the compression amount and filling amount of the overall elastic seal 100, the elastic sealing protrusion 300 only produces deformation and sealing effects at key parts and does not require large-scale compression of the entire elastic seal 100. With such a setting, the stress borne by the overall elastic seal 100 increases less, avoiding premature aging and failure caused by overall excessive compression. The elastic sealing protrusion 300 can not only achieve a good sealing effect through local elastic deformation, but also reduce the negative impact on the life of the elastic seal 100 due to increasing the overall compression amount. It reduces the maintenance cost and the frequency of replacing the elastic seal 100, and improves the stability and reliability of the pipeline 2000 system.

[0086] Refer to Figure 6 and Figure 7 , in some embodiments, the elastic seal 100 includes an elastic seal body 110 and a connecting member 120. The elastic seal body 110 has a strip-like structure. The elastic seal body 110 is provided with opposite first end 111 and second end 112, and a connecting groove 1111 is provided at the first end 111; the connecting member 120 is disposed at the second end 112 and can be inserted into the connecting groove 1111. Refer to Figure 8 and Figure 9 , the first end 111 and the second end 112 of the elastic seal body 110 are connected to form an annular structure. Specifically, the annular structure can be obtained by bending the strip-like elastic seal 100, and the connecting member 120 is locked and fixed in the connecting groove 1111.

[0087] With the above settings, the elastic sealing body 110 adopts a strip structure. When the sealing mechanism 1000 is actually installed, the operator can bend the strip-shaped elastic sealing body 110 around the pipeline 2000 according to the specific size and shape of the pipeline 2000, and then connect it into an annular structure through the cooperation of the connecting piece 120 and the connecting groove 1111, adapting to pipelines 2000 of different specifications, which improves the flexibility and efficiency of installation. The connecting piece 120 can be directly inserted into the connecting groove 1111, enabling the operator to complete the assembly of the elastic sealing member 100 by simply inserting the connecting piece 120 accurately into the connecting groove 1111, greatly shortening the installation time, especially suitable for some engineering scenarios that require rapid completion of the sealing operation. When the first end 111 and the second end 112 of the elastic sealing body 110 are connected into an annular structure through the connecting piece 120 and the connecting groove 1111, the connecting piece 120 is locked and fixed in the connecting groove 1111, which can ensure that the elastic sealing member 100 forms a complete and continuous sealing ring structure at the connection of the pipeline 2000. This tight connection method can effectively prevent medium leakage and improve the reliability of the seal. The elastic sealing member 100 itself has elasticity. Even if the pipeline 2000 undergoes slight deformation due to factors such as temperature change and external force during use, the elastic sealing body 110 can adapt to this change through its own elastic deformation and maintain close fit with the pipeline 2000. At the same time, the locking structure of the connecting piece 120 and the connecting groove 1111 can ensure that the connection at both ends does not loosen when the elastic sealing member 100 deforms, further enhancing the stability of the seal.

[0088] It can be understood that due to the detachable connection method between the connecting piece 120 and the connecting groove 1111, in some cases, when the pipeline 2000 needs to be repaired or modified, the elastic sealing member 100 can be disassembled and reinstalled after the repair or modification is completed, realizing the reuse of the elastic sealing body 110 and saving resources.

[0089] It can be understood that the annular structure formed by connecting the first end 111 and the second end 112 of the elastic sealing member 100 in the embodiment of the present application is not limited to a circular ring structure. Since the elastic sealing member 100 itself has elasticity and can deform, the elastic sealing member 100 can adapt to pipelines 2000 with different pipe diameters and shapes. Whether it is a circular, square or other special-shaped pipeline 2000, as long as the elastic sealing body 110 is bent into the corresponding shape and connected through the connecting piece 120 and the connecting groove 1111, an effective seal can be formed, expanding the application range of the sealing mechanism 1000. The sealing mechanism 1000 is not limited by the cross-sectional shape and size of the pipeline 2000 and can be modified according to different cross-sections.

[0090] In some embodiments, the connection groove 1111, the connecting member 120 and the elastic sealing body 110 are made of a strip-shaped rubber strip, and are integrally formed by molding or microwave vulcanization to form the elastic seal 100.

[0091] Referring to Figure 7 , in some embodiments, the connection groove 1111 is configured as a dovetail groove made of a first elastic material, and the connecting member 120 is configured as a dovetail tenon made of a second elastic material; the dovetail tenon can extend into the dovetail groove and is in interference fit with the dovetail groove, so that the dovetail tenon is locked and fixed in the connection groove 1111. The dovetail groove, the dovetail tenon and the elastic sealing body 110 are integrally formed to form the elastic seal 100. The two sides of the integrally formed strip-shaped elastic sealing body 110 are respectively a dovetail groove structure and a dovetail tenon structure. By bending the elastic seal 100, the dovetail groove and the dovetail tenon are butt-jointed, so that the elastic seal 100 forms a hollow shape and covers the outer periphery of the connection part of two adjacent pipes 2000.

[0092] Referring to Figure 8 and Figure 9 , specifically, the dovetail groove and the dovetail tenon are locked by mechanical means and at the same time are in interference fit. The size of the dovetail tenon is slightly larger than the size of the dovetail groove, and it is further locked after being pressed to form self-locking. In specific use, the connection part of the dovetail groove and the dovetail tenon is designed in the middle of the cross-section of the pipe 2000 and at a part that is easily deformed in the radial direction of the pipe 2000. At the same time, this connection structure has self-locking ability, and the connection part is in interference fit. When receiving the upper and lower locking forces of the fastening member 200, the greater the locking force, the closer the sealing surface fits.

[0093] It can be understood that, in some embodiments, the elastic seal 100 is made by cutting a rubber strip with a special-shaped cross-section, and has universality, not limited to the circumference of the structure of the connection part of the pipe 2000, and only a rubber mold for preparing the rubber strip with a special-shaped cross-section is required.

[0094] Referring to Figure 10 , in some embodiments, the elastic seal 100 includes an integral elastic sealing ring. Through the above settings, the connection structure of the dovetail groove and the dovetail tenon can be cancelled, and a special mold is used. Through injection vulcanization integral molding or compression molding integral molding, there is no connection structure on the elastic sealing ring, that is, the elastic sealing ring is a complete ring structure, which is suitable for working conditions with higher sealing requirements.

[0095] Referring to Figure 11 , in some embodiments, the connecting member 120 includes a connection body 121 and a compression-resistant support member 122. The connection body 121 is fixed to the second end 112; the compression-resistant support member 122 is arranged on the connection body 121. The compression-resistant support member 122 provides compression resistance support for the connection body 121, so that the connection body 121 has the ability to resist deformation.

[0096] In some embodiments, the compressive support member 122 is configured as a compressive support member 122 made of a metallic material, having a certain supporting ability and corrosion resistance. Specifically, the material of the metallic compressive support member 122 may be made of corrosion-resistant materials such as stainless steel and aluminum alloy.

[0097] Referring to Figure 11 , in some embodiments, the connection body 121 is provided with a first cavity 1211, and the compressive support member 122 is disposed within the first cavity 1211.

[0098] Specifically, by integrally forming the elastic seal 100, that is, by integrally forming the elastic seal body 110 with the connection body 121, the side surface of the connection body 121 is hollowed out to form the first cavity 1211. Then, the compressive support member 122 is inlaid and bonded in the first cavity 1211. Subsequently, the dovetail groove and the dovetail tenon are connected. The dovetail groove part is at the elastic seal body 110 and has elasticity. It is relatively easy to place the dovetail tenon embedded with the compressive support member 122 into the dovetail groove, facilitating the connection.

[0099] It can be understood that in some embodiments, the elastic seal 100 with the first cavity 1211 may also be directly integrally formed, that is, the connection body 121 and the elastic seal body 110 with the first cavity 1211 are integrally formed, and then the compressive support member 122 is inlaid and bonded in the first cavity 1211.

[0100] Referring to Figure 11 , in some embodiments, the elastic seal body 110 is provided with a second cavity 1121 at the end surface of the second end 112, and the second cavity 1121 communicates with the first cavity 1211; one end of the compressive support member 122 is disposed within the first cavity 1211, and the other end is disposed within the second cavity 1121. Through the above arrangement, the compressive support member 122 further extends into the second end 112 of the elastic seal body 110, providing compressive support for the elastic seal body 110 and enhancing its ability to resist deformation.

[0101] It can be understood that by integrally forming the elastic seal 100, that is, by integrally forming the elastic seal body 110 with the connection body 121, the side surface of the connection body 121 is hollowed out, and after the connection body 121 is hollowed out, it continues to be hollowed out towards the elastic seal body 110 connected thereto to form the mutually communicating first cavity 1211 and second cavity 1121. Then, the compressive support member 122 is inlaid and bonded in the first cavity 1211 and the second cavity 1121. The elastic seal 100 with the first cavity 1211 and the second cavity may also be directly integrally formed, that is, the connection body 121 with the first cavity 1211 and the elastic seal body 110 with the second cavity 1121 are integrally formed, and then the compressive support member 122 is inlaid and bonded in the first cavity 1211 and the second cavity 1121.

[0102] In some embodiments, a first adhesive layer (not shown in the figure) is bonded between the compression support member 122 and the inner wall of the first cavity 1211; and / or a second adhesive layer (not shown in the figure) is bonded between the compression support member 122 and the inner wall of the second cavity 1121. Specifically, the first adhesive layer and the second adhesive layer can be formed by coating a rubber adhesive. Through the above arrangement, the metal compression support member 122 and the elastic seal 100 are bonded with a rubber adhesive, improving the sealing strength.

[0103] Specifically, in some embodiments, when different elastic materials are used for the elastic seal 100, different adhesives can be correspondingly selected. For example, when the elastic seal 100 is made of rubber material, different adhesives for bonding metal and rubber can be used according to the type of rubber of the elastic seal 100, and the bonding can be carried out during vulcanization molding or after vulcanization.

[0104] Refer to Figure 12 In some embodiments, the fastening member 200 is provided with a first fastening sealing surface 202 and a second fastening sealing surface 203 along the axial direction of the pipeline 2000. The first fastening sealing surface 202 is used to abut against the outer wall surface of one pipeline 2000, and the second fastening sealing surface 203 is used to abut against the outer wall surface of another pipeline 2000; the sealing groove 201 is arranged between the first fastening sealing surface 202 and the second fastening sealing surface 203. The fastening member 200 is provided with the first fastening sealing surface 202 and the second fastening sealing surface 203 to abut against the outer walls of the two pipelines 2000 respectively. Coupled with the cooperation of the middle sealing groove 201 and the elastic seal 100, multiple sealing lines of defense are formed. For the medium in the pipeline 2000 to leak, it needs to break through multiple seals such as the elastic seal and the sealing groove 201, and the sealing surface and the outer wall of the pipeline 2000, greatly reducing the possibility of leakage; and for the medium in the external environment to leak into the pipeline 2000, it also needs to break through multiple seals such as the elastic seal and the sealing groove 201, and the sealing surface and the outer wall of the pipeline 2000, greatly reducing the possibility of leakage. The first fastening sealing surface 202 and the second fastening sealing surface 203 are closely attached to the outer wall surface of the pipeline 2000, not only for sealing, but also increasing the friction force and contact area between the fastening member 200 and the pipeline 2000, making the fixing of the fastening member 200 on the pipeline 2000 more stable, and being able to better withstand temperature changes and external forces during the operation of the pipeline 2000 system, etc., preventing the fastening member 200 from loosening. Through the above arrangement, the sealing effect can be strengthened, the structural stability can be improved, and the sealing performance and reliability of the connection of the pipeline 2000 can be ensured.

[0105] Refer to Figure 12, in some embodiments, the sealing groove 201 includes a groove bottom wall 2011 and a groove side wall 2012. The groove bottom wall 2011 is used to abut against the circumferential outer wall surface of the elastic seal 100; the groove side wall 2012 is used to abut against the axial end surface of the elastic seal 100; wherein, the elastic sealing protrusion 300 is disposed between the groove bottom wall 2011 and the circumferential outer wall surface of the elastic seal 100. The abutment of the groove bottom wall 2011 against the circumferential outer wall surface of the elastic seal 100 and the abutment of the groove side wall 2012 against the axial end surface of the elastic seal 100 form a sealing space surrounding the elastic seal 100. Together with the elastic sealing protrusion 300 located between the groove bottom wall 2011 and the circumferential outer wall surface of the elastic seal 100, they jointly constitute a multi - seal mechanism 1000. The elastic seal 100 itself plays a primary sealing role. The elastic sealing protrusion 300 further fills the micro - gaps. The groove bottom wall 2011 and the groove side wall 2012 limit the leakage path of the medium, greatly reducing the leakage risk. Even if problems occur in some sealing links, other parts can still maintain a certain sealing performance. The elastic sealing protrusion 300 is disposed between the groove bottom wall 2011 and the circumferential outer wall surface of the elastic seal 100, compensating for the errors during the installation process to a certain extent. Even if there is a small deviation in the installation position of the elastic seal 100, the elastic sealing protrusion 300 can still be in close contact with the groove bottom wall 2011 through its own elastic deformation, ensuring the sealing effect, reducing the strict requirements for the installation accuracy, and making the installation operation easier to perform.

[0106] Through the above - mentioned settings, the tight abutment of the groove bottom wall 2011, the groove side wall 2012 and the elastic seal 100, as well as the function of the elastic sealing protrusion 300, fix the elastic seal 100 in the groove. When the pipeline 2000 system is running, it can effectively prevent the elastic seal 100 from shifting or loosening due to temperature changes, external forces, etc., ensuring the long - term stable operation of the sealing mechanism 1000, reducing the frequent replacement and maintenance costs of the elastic seal, and being applicable to the pipeline 2000 system with long - term operation and difficult maintenance.

[0107] In some embodiments, referring to Figure 12 , the circumferential outer wall surface of the elastic seal 100 is provided with an elastic sealing protrusion 300 facing the groove bottom wall 2011; and / or, referring to Figure 4 and Figure 5 , the groove bottom wall 2011 is provided with an elastic sealing protrusion 300 facing the circumferential outer wall surface of the elastic seal 100.

[0108] Specifically, the elastic sealing protrusions 300 can be provided only on the circumferential outer wall surface of the elastic seal 100, or only on the bottom wall 2011 of the groove, or multiple elastic sealing protrusions 300 can be provided on the circumferential outer wall surface of the elastic seal 100 and the bottom wall 2011 of the groove. As long as the elastic sealing protrusions 300 on the elastic seal 100 and the elastic sealing protrusions 300 on the bottom wall 2011 of the groove are arranged staggeredly to avoid mutual interference. Whether the elastic sealing protrusions 300 are provided on the circumferential outer wall surface of the elastic seal 100 or the bottom wall 2011 of the groove, or multiple elastic sealing protrusions 300 are provided on both, it greatly increases the sealing contact points and contact area of the sealing mechanism 1000. When the fastening member 200 is locked, the elastic sealing protrusions 300 are squeezed and deformed, and can more closely fill the tiny gap between the elastic seal 100 and the bottom wall 2011 of the groove, effectively preventing the leakage of the medium.

[0109] It can be understood that according to different working conditions such as the properties of the internal and external media in the pipeline 2000 and the working environment of the pipeline 2000, the setting method of the elastic sealing protrusions 300 can be flexibly selected. For the working conditions with strong medium corrosion, multiple elastic sealing protrusions 300 can be provided on both the elastic seal 100 and the bottom wall 2011 of the groove to enhance the sealing performance; for relatively stable working conditions, only one elastic sealing protrusion 300 provided on the elastic seal 100 or the bottom wall 2011 of the groove can meet the sealing requirements. This flexibility enables the sealing mechanism 1000 to better adapt to various complex engineering application scenarios.

[0110] Refer to Figure 4 , in some embodiments, the bottom wall 2011 of the groove is provided with elastic sealing protrusions 300 facing the circumferential outer wall surface of the elastic seal 100. The elastic sealing protrusions 300 are provided on the bottom wall 2011 of the groove. When the elastic seal 100 is embedded in the sealing groove 201, the protrusions will be squeezed and elastically deformed, thereby forming a greater contact pressure between the circumferential outer wall surface of the elastic seal 100 and the bottom wall 2011 of the groove.

[0111] Refer to Figure 12, in some embodiments, when the circumferential outer wall surface of the elastic seal 100 is provided with an elastic seal protrusion 300 facing the bottom wall 2011 of the groove, the elastic seal protrusion 300 is integrally formed with the elastic seal 100. Through the above arrangement, it helps to simplify the manufacturing process. The integrally formed design avoids the complex process of separately manufacturing and installing the elastic seal protrusion 300 onto the elastic seal 100, reduces the production steps and production time, and improves the production efficiency. At the same time, it also reduces the errors and scrap rate during the production process, is beneficial to large-scale production and cost reduction. Meanwhile, the integral molding makes the elastic seal protrusion 300 and the elastic seal 100 form a whole, without a connection interface, avoiding the problem of protrusion detachment or loosening caused by insecure connection. It ensures the integrity and reliability of the sealing mechanism 1000 and improves the quality and stability of the product. The integrally formed elastic seal protrusion 300 can better adapt to the deformation of the elastic seal 100. When the elastic seal 100 changes its shape due to the deformation of the pipeline 2000 or other factors, the protrusion can deform synchronously therewith and always maintain close contact with the bottom wall 2011 of the groove, thereby improving the adaptability of the sealing mechanism 1000 to different working conditions.

[0112] In some embodiments, referring to Figure 13 and Figure 14 , the elastic seal protrusion 300 includes an annular seal protrusion 310 or a circular seal protrusion 320; and / or, the cross-section of the elastic seal protrusion 300 includes a semi-circular or rectangular shape. Different shapes of the elastic seal protrusion 300, such as the annular seal protrusion 310, the circular seal protrusion 320, as well as the semi-circular and rectangular cross-sections, can adapt to different working conditions and leakage paths. The annular seal protrusion 310 can provide uniform sealing along the circumferential direction, the circular seal protrusion 320 strengthens the sealing at specific points, and the semi-circular and rectangular cross-sections respectively enhance the sealing effect by virtue of good elastic deformation ability and stable supporting force.

[0113] It can be understood that except for the case where the annular seal protrusion 310 and the circular seal protrusion 320 exist simultaneously. In some embodiments, the elastic seal protrusion 300 only includes the annular seal protrusion, or the elastic seal protrusion only includes the circular seal protrusion. Preferably, the elastic seal protrusion 300 only includes the annular seal protrusion.

[0114] In some embodiments, a plurality of elastic seal protrusions 300 are provided. Multiple elastic seal protrusions 300 are equivalent to forming multiple sealing defenses. Even if a certain seal protrusion is slightly worn or deformed due to long-term use, other seal protrusions can still continue to play a sealing role, ensuring the reliability of the entire sealing mechanism 1000. It can be understood that according to the complexity of the pipeline 2000 and the working conditions, when necessary, the width and quantity of the elastic seal protrusions 300 along the axial direction of the pipeline 2000 can be increased to achieve the sealing effect of tightly squeezing and fitting the sealing surface against the outer wall surface of the pipeline 2000.

[0115] See also Figure 12 In some embodiments, at least one elastic sealing protrusion 300 is respectively provided on both sides of the connection of the pipeline 2000. The elastic sealing protrusions 300 are provided on both sides of the connection of the pipeline 2000 to form multiple sealing defense lines, increase the difficulty of medium leakage, and ensure that the medium is difficult to leak under complex working conditions such as high pressure. The elastic sealing protrusions 300 of various shapes and cross-sections enable the sealing mechanism 1000 to be flexibly adjusted according to the material of the pipeline 2000, the properties of the medium, etc. At the same time, the elastic sealing protrusions 300 are arranged on both sides of the connection of the pipeline 2000, which disperses the pressure, reduces the load of a single protrusion, and reduces the risk of sealing failure caused by excessive local pressure. At the same time, the protrusions of different shapes and cross-sections cooperate with each other. Even if some protrusions are damaged, other protrusions can still maintain a certain sealing ability, ensuring that the sealing mechanism 1000 can operate reliably in harsh environments or long-term use, reducing safety accidents and economic losses caused by leakage.

[0116] See also Figure 15 and Figure 16 In some embodiments, the fastening member 200 includes a first fastening body 210, a second fastening body 220 and a locking member 230. The first fastening body 210 is provided with a first groove 211; the second fastening body 220 is provided with a second groove 221. The first fastening body 210 is used to be fastened with the second fastening body 220, and the first groove 211 and the second groove 221 enclose and construct a sealing groove 201; the locking member 230 locks and fixes the first fastening body 210 and the second fastening body 220.

[0117] Through the above arrangement, the fastener 200 adopts a split design, that is, the first fastening body 210 and the second fastening body 220 are separated. When installing, it is only necessary to place the elastic seal 100 in a suitable position, then buckle the first fastening body 210 and the second fastening body 220, and finally fix it with the locking member 230. This installation method is simpler and more convenient than the integral fastener 200, reduces the installation difficulty, and improves the installation efficiency. In some cases where the space on the construction site is limited, the split fastener 200 is easier to operate. When the elastic seal 100 or the fastener 200 is damaged and needs to be repaired or replaced, the structural advantage of the fastener 200 being set as a split type is more obvious. By loosening the locking member 230, the first fastening body 210 and the second fastening body 220 can be easily separated, and the internal elastic seal 100 can be inspected, repaired or replaced without dismantling the entire pipeline 2000 system, which greatly shortens the maintenance time and reduces the maintenance cost.

[0118] See also Figure 15 and Figure 16, in some embodiments, there are two locking members 230, which are respectively disposed on two radial sides of the pipeline 2000 to lock and fix the first fastening body 210 and the second fastening body 220 on the two radial sides of the pipeline 2000. The locking member 230 includes a first support plate 231 and a second support plate 233. The first support plate 231 is fixed on the first fastening body 210, and a first locking seat 232 is further fixedly arranged on the first support plate 231, and a first locking hole 2321 is arranged in the first locking seat 232; the second support plate 233 is fixed on the second fastening body 220, and a second locking seat 234 is further fixedly arranged on the second support plate 233, and a second locking hole 2341 corresponding to the first locking hole 2321 is arranged in the second locking seat 234. The first locking hole 2321 and the second locking hole 2341 are connected by a locking bolt (not shown in the figure), so as to realize the locking connection between the first fastening body 210 and the second fastening body 220, press and fix the elastic seal 100 in the locking member, and thus seal the connection of the pipeline 2000. During installation, place the elastic seal 100 well, buckle the first fastening body 210 and the second fastening body 220, align the first locking hole 2321 and the second locking hole 2341, insert the locking bolt and tighten it. The installation is simple. When maintaining or replacing the elastic seal 100, unscrew the locking bolt, and the first fastening body 210 and the second fastening body 220 can be separated. The operation is convenient, the maintenance time and cost are reduced. In case of emergency repair, the problem can be quickly handled, and the influence of the pipeline 2000 system failure is reduced.

[0119] Through the above settings, the first support plate 231 and the second support plate 233 are respectively fixed on the first fastening body 210 and the second fastening body 220, and the first locking seat 232 and the second locking seat 234 respectively accurately position the first locking hole 2321 and the second locking hole 2341 to ensure their precise correspondence. The locking bolt passes through the two holes for connection, so that the first fastening body 210 and the second fastening body 220 are closely attached, uniformly compress the elastic seal 100, avoid dislocation and loosening, maintain a stable connection, and ensure the sealing performance. The stable connection of the locking member 230 enables the elastic seal 100 to maintain the correct position and compression state during long-term use. Avoid the displacement and deformation of the elastic seal 100 caused by the loosening of the fastening member 200, prevent the sealing failure, ensure the long-term reliable operation of the pipeline 2000 connection, and reduce the leakage risk.

[0120] In addition, due to the structural design of the first locking seat 232, the second locking seat 234, the first support plate 231 and the second support plate 233, the fastening force of the locking bolt is dispersed to the fastening body. Avoid excessive local stress from damaging the fastening member 200 or the elastic seal 100, extend the service life, and in the connection of high-pressure pipelines 2000, it can effectively withstand the internal pressure of the pipeline 2000 to ensure a stable connection.

[0121] Refer to Figure 1, in some embodiments, multiple annular reinforcing stirrup structures 204 are provided on the outer wall of the fastening member 200, further enhancing the structural strength of the fastening member 200 and strengthening its circumferential sealing ability around the pipeline 2000. In the circumferential direction of the pipeline 2000, the reinforcing stirrup structure 204 can make the pressing of the fastening member 200 on the elastic seal 100 more uniform.

[0122] Specifically, refer to 15 and Figure 16 , reinforcing stirrups 204 are provided on the outer walls of both the first fastening body 210 and the second fastening body 220, and the reinforcing stirrups 204 on the first fastening body 210 are aligned with the reinforcing stirrups 204 on the second fastening body 220 along the circumferential direction of the pipeline 2000.

[0123] In some embodiments, for the sealing mechanism 1000 provided in the present application, according to the operating conditions, when sealing and waterproofing, materials such as silicone rubber and ethylene propylene diene monomer rubber can be selected for preparation; when sealing oil, oil-resistant materials such as fluororubber and fluorosilicone rubber can be selected for preparation, and the available materials are diverse.

[0124] The specific usage steps of the sealing mechanism 1000 in the embodiments of the present application are as follows:

[0125] Align the two pipelines 2000 to ensure that their central axes are on the same straight line to avoid misalignment affecting the sealing performance;

[0126] Determine the installation position on the outer wall of the pipeline 2000 in advance, and mark it with a line if necessary. Press the elastic seal 100 tightly against the outer wall of the pipeline 2000 so that it is centered and installed at the pipe connection;

[0127] Then expand the dovetail groove, align and place the dovetail tenon embedded with the metal compression support member 122 into it to ensure that the dovetail tenon is tightly attached to the end face of the dovetail groove, completing the assembly of the elastic seal 100;

[0128] Install the fastening member 200 on the upper and lower sides of the elastic seal 100 so that the elastic seal 100 can be centered and filled into the sealing groove 201 of the fastening member 200 to prepare for subsequent sealing and fixing;

[0129] Refer to Figure 17 , use the locking bolts to lock the fastening member 200 so that the elastic seal 100 is compressed and tightly filled in the sealing groove 201 between the fastening member 200 and the pipeline 2000. At this time, the dovetail groove and dovetail tenon of the elastic seal 100 are in a locked state, and the elastic seal 100 reaches the predetermined compression amount and filling amount, and multiple working surfaces in the axial and radial directions are in close cooperation with the pipeline 2000 and the fastening member 200 to achieve reliable sealing. The specific formed sealing working surfaces are as follows:

[0130] The sealing working surfaces formed by the outer wall of the dovetail tenon and the inner wall of the dovetail groove specifically include the sealing working surfaces D1 and D2 formed by the upper and lower outer wall surfaces of the dovetail tenon and the upper and lower inner wall surfaces of the dovetail groove (refer to Figure 18 ); It also includes the sealing working surface D3 formed by the end surface of the dovetail tenon and the inner wall surface of the dovetail groove (refer to Figure 18 );

[0131] The sealing working surface E formed by the elastic sealing protrusion 300 and the groove bottom wall 2011 of the sealing groove 201 (refer to Figure 12 );

[0132] The sealing working surface F formed by the inner wall surface of the elastic seal 100 and the outer wall surface of the pipeline 2000 (refer to Figure 12 );

[0133] The sealing working surface G formed by the outer wall surface of the elastic seal 100 and the groove bottom wall 2011 of the sealing groove 201 along the elongation direction of the pipeline 2000 (the axial direction of the pipeline 2000) (refer to Figure 12 ), realizing the sealing perpendicular to the elongation direction of the pipeline 2000;

[0134] The sealing working surfaces H and I perpendicular to the elongation direction of the pipeline 2000 formed by the two end surfaces of the elastic seal 100 and the groove side walls 2012 of the sealing groove 201 (refer to Figure 12 ), realizing the sealing along the elongation direction of the pipeline 2000.

[0135] The sealing mechanism 1000 in the embodiment of the present application has the following beneficial effects:

[0136] By distributing the elastic sealing protrusion 300 structure on both sides of the connection of the pipeline 2000, after the bolt locks the fastener 200, the elastic sealing protrusion 300 is further pressed, which can effectively fill the possible leakage channels, prevent the internal and external media from leaking from the connection part of the pipeline 2000, improve the sealing performance, and ensure the safe operation of the pipeline 2000 system;

[0137] The elastic seal 100 is connected by a dovetail groove and dovetail tenon structure, and a metal compression support 122 is embedded in the dovetail tenon. Under the action of the fastener 200, not only the sealing surfaces are closely fitted, but also the anti-deformation ability at the connection of the dovetail groove and dovetail tenon is enhanced, making the entire sealing mechanism 1000 more stable and reliable, capable of withstanding a certain amount of pressure and vibration, and not prone to loosening and leakage;

[0138] Reduces the installation difficulty, improves the installation efficiency, reduces the installation time and labor costs, and is suitable for the rapid installation requirements of various engineering sites;

[0139] The sealing mechanism 1000 and the installation method are not limited by the size and shape of the pipeline 2000, and can be adjusted and reformed according to the actual situation, and can be widely applied to the connection of different types of pipelines 2000.

[0140] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0141] The above-described embodiments only represent several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A sealing mechanism, characterized in that: include: An elastic seal, which is in a ring-shaped structure and is used to cover the pipe connection; A fastener, wherein the inner wall of the fastener is provided with a sealing groove, and the sealing groove is for the elastic sealing member to be embedded; At least one of the elastic seal and the fastener is provided with an elastic sealing protrusion for abutting against the other one of the elastic seal and the fastener.

2. The sealing mechanism according to claim 1, characterized in that: The elastic sealing member comprises an elastic sealing body and a connecting member, wherein the elastic sealing body is provided with a first end and a second end opposite to each other, and the first end is provided with a connecting groove; the connecting member is provided at the second end and can be inserted into the connecting groove; wherein the first end and the second end of the elastic sealing body are connected to form the annular structure, and the connecting member is locked and fixed in the connecting groove; or The elastic sealing member comprises an integrated elastic sealing ring.

3. The sealing mechanism according to claim 2, characterized in that: The connecting piece comprises: a connecting body, the connecting body being fixed to the second end; A compression-resistant support member is arranged on the connecting body.

4. The sealing mechanism according to claim 3, characterized in that: The connecting body is provided with a first cavity, and the compression-resistant support member is arranged in the first cavity.

5. The sealing mechanism according to claim 4, characterized in that: The end surface of the elastic sealing body is provided with a second cavity, and the second cavity is communicated with the first cavity; One end of the compression-resistant support member is disposed in the first cavity, and the other end is disposed in the second cavity.

6. The sealing mechanism according to claim 5, characterized in that: A first adhesive layer is bonded between the compression support member and the inner wall of the first cavity; and / or A second adhesive layer is bonded between the compression-resistant support member and the inner wall of the second cavity.

7. The sealing mechanism according to claim 2, characterized in that: The connecting groove is configured as a dovetail groove made of a first elastic material, and the connecting piece is configured as a dovetail tenon made of a second elastic material; The dovetail tenon can extend into the dovetail groove and has an interference fit with the dovetail groove, so that the dovetail tenon is locked and fixed in the connecting groove.

8. The sealing mechanism according to claim 1, characterized in that: The fastener is provided with a first fastening sealing surface and a second fastening sealing surface along the axial direction of the pipeline, the first fastening sealing surface is used to abut against the outer wall surface of one pipeline, and the second fastening sealing surface is used to abut against the outer wall surface of another pipeline; The sealing groove is arranged between the first fastening sealing surface and the second fastening sealing surface.

9. The sealing mechanism according to claim 8, characterized in that: The sealing groove comprises: A groove bottom wall, the groove bottom wall is used to abut against the circumferential outer wall surface of the elastic sealing member; A groove side wall, the groove side wall is used to abut against the axial end surface of the elastic sealing member; Wherein, the elastic sealing protrusion is arranged between the bottom wall of the groove and the circumferential outer wall surface of the elastic sealing component.

10. The sealing mechanism according to claim 9, characterized in that: The circumferential outer wall surface of the elastic sealing member is provided with the elastic sealing protrusion facing the bottom wall of the groove; and / or The bottom wall of the groove is provided with the elastic sealing protrusion facing the circumferential outer wall surface of the elastic sealing member.

11. The sealing mechanism according to claim 10, characterized in that: When the circumferential outer wall surface of the elastic seal is provided with the elastic sealing protrusion facing the bottom wall of the groove, the elastic sealing protrusion is integrally formed with the elastic seal.

12. The sealing mechanism according to any one of claims 1 to 11, characterized in that: The elastic sealing protrusion comprises an annular sealing protrusion or a circular sealing protrusion; and / or The cross section of the elastic sealing protrusion includes a semicircle or a rectangle.

13. The sealing mechanism according to any one of claims 1 to 11, characterized in that: The elastic sealing protrusion is provided in plurality; At least one elastic sealing protrusion is respectively arranged on both sides of the pipeline connection.

14. The sealing mechanism according to any one of claims 1 to 11, characterized in that: The fastening member comprises: A first fastening body, wherein the first fastening body is provided with a first groove; A second fastening body, wherein the second fastening body is provided with a second groove, the first fastening body is used to be fastened with the second fastening body, and the first groove and the second groove enclose the sealing groove; A locking member is used to lock and fix the first fastening body and the second fastening body.

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