Anti-blocking and anti-leakage structure

Abstract

The utility model discloses a kind of anti-jamming leak-proof structures, belong to anti-jamming leak-proof structure technical field, including M-shaped sealing ring, one end of the M-shaped sealing ring is fixedly connected with first rubber ring, and the other end is fixedly connected with second rubber ring;The outer peripheral wall sealing of the first rubber ring is fixedly installed with second annular shell, the outer peripheral wall sealing of the second rubber ring is fixedly installed with first annular shell, and the first annular shell is communicated with second annular shell by circulation component;Therefore, the active temperature regulating function can be constructed by the collaborative design of circulation component and heat conduction structure, circulation component can transport coolant or heat preservation liquid by liquid inlet pipe, metal hose, liquid outlet pipe, cooperate with the efficient heat conduction of first heat conductor, second heat conductor, realize the uniform temperature control of M-shaped sealing ring, first rubber ring, second rubber ring, the design effectively avoids the performance attenuation caused by temperature fluctuation of sealing element, greatly improves the service life of M-shaped sealing ring.

Description

Technical Field

[0001] This utility model relates to an anti-jamming and anti-leakage structure, belonging to the technical field of anti-jamming and anti-leakage structures. Background Technology

[0002] As a type of combined structure with dual functions of preventing jamming and leakage, anti-jamming and anti-leakage structures have been widely adapted to various industries such as pipeline transmission, pump operation, and daily necessities manufacturing due to their core application value. They have become key structural components to ensure stable equipment operation and reduce failure losses. Among them, anti-jamming and anti-leakage structures in the pipeline field are particularly mature in design and application due to the need to adapt to complex media transmission environments and long-term use requirements, resulting in a variety of typical technical solutions.

[0003] In piping systems, press-fit fittings are one of the core application carriers of anti-clamping and anti-leakage structures. In mainstream designs, a combination structure of M-type rubber rings and anti-leakage membranes is often used: the M-type rubber ring naturally expands to both sides under the clamping force, which can significantly increase the contact area with the inner wall of the pipe, effectively avoiding the rolling and twisting problems that are prone to occur with traditional rubber rings, thereby ensuring the stability of the sealing performance; the anti-leakage membrane covers the outside of the fitting and will be crushed and detached by special tools during the clamping operation. Operators can intuitively judge whether the fitting has been effectively clamped by observing the state of the membrane, thus eliminating the risk of leakage from the operational level; in addition, the triple sealing structure used in double-clamping stainless steel water pipes is also very representative: the fitting protrudes and embeds into the pipe body through hydraulic tools, forming a reliable mechanical locking effect; the internally configured EPDM rubber sealing ring is compressed during the clamping process, forming an elastic sealing barrier; at the same time, the pipe undergoes plastic deformation under pressure, forming a tight interference fit with the fitting. This triple structure works together to solve the loosening problem caused by insufficient clamping and to ensure water leakage prevention during long-term use. Some pipe fittings also have a small protrusion design added to the sealing ring. When the pressure is not up to standard, water leakage will occur during the pressure test, thus providing a visual reminder so that operators can adjust the pressure in time.

[0004] However, existing anti-jamming and anti-leakage structures in the pipeline field still have significant limitations under complex working conditions, with the core problem being the insufficient environmental adaptability of the sealing components.

[0005] From the perspective of temperature effects, high-temperature environments accelerate the thermal aging process of seals such as M-type rubber rings, leading to increased material hardness and decreased toughness, making the surface prone to cracking, and gradually losing elastic sealing ability. Under extreme high-temperature conditions, it may even cause the rubber ring to carbonize and fail. On the other hand, low-temperature environments cause the rubber ring's elasticity to decrease sharply, and the material to become brittle, making it prone to breakage under the combined action of clamping stress and medium pressure. From the perspective of medium compatibility, if the medium transported in the pipeline is a strong acid, strong alkali, or a certain organic solvent, when these media are incompatible with the material of the sealing rubber ring, it will cause physical and chemical changes such as swelling, softening, or shrinking and hardening of the rubber ring, directly destroying the integrity of the sealing structure, ultimately leading to the failure of the leak-proof function, seriously affecting the operational safety and service life of the pipeline system.

[0006] Given the shortcomings of the existing technologies, there is an urgent need to develop an anti-jamming and leak-proof structure with stronger environmental adaptability and better sealing stability to solve the problem of temperature fluctuations and corrosive media damaging the sealing components, further expand the application scenarios of the anti-jamming and leak-proof structure, and improve the operational reliability of pipelines and other equipment. Utility Model Content

[0007] To solve the above-mentioned technical problems, this utility model provides an anti-jamming and anti-leakage structure to address the issues raised in the background section.

[0008] The technical solution adopted by this utility model to solve its technical problem is: an anti-jamming and anti-leakage structure, including an M-shaped sealing ring, one end of which is fixedly connected to a first rubber ring and the other end of which is fixedly connected to a second rubber ring; a second annular shell is sealed and fixedly installed on the outer peripheral wall of the first rubber ring, and a first annular shell is sealed and fixedly installed on the outer peripheral wall of the second rubber ring; fluid communication is achieved between the first annular shell and the second annular shell through a circulation component.

[0009] The circulation assembly includes a liquid inlet pipe, a metal hose, and a liquid outlet pipe. One end of the liquid inlet pipe is sealed and penetrates the side wall of the second annular shell and communicates with the interior of the second annular shell. One end of the liquid outlet pipe is sealed and penetrates the side wall of the first annular shell and communicates with the interior of the first annular shell. One end of the metal hose is sealed and penetrates the side wall of the second annular shell and communicates with the interior of the second annular shell, while the other end penetrates the interior of the M-shaped sealing ring and communicates with the interior of the first annular shell.

[0010] Preferably, a second partition is fixedly installed on the inner wall of the second annular shell, and the second partition is located between the liquid inlet pipe and the metal hose; a first partition is fixedly installed inside the first annular shell, and the first partition is located between the metal hose and the liquid outlet pipe.

[0011] Preferably, the outer wall of the first rubber ring is provided with a plurality of heat-conducting grooves, and a first heat-conducting body is inserted into the interior of each heat-conducting groove. The ends of the first heat-conducting bodies are sealed through the outer wall of the second annular shell, and the through ends of the first heat-conducting bodies extend into the interior of the second annular shell.

[0012] Preferably, the outer wall of the second rubber ring is provided with a plurality of heat-conducting grooves that are consistent with the structure of the heat-conducting grooves on the outer wall of the first rubber ring. A second heat conductor is inserted into the interior of each heat-conducting groove. The ends of the second heat conductors are sealed through the outer wall of the first annular shell, and the through ends of the second heat conductors extend into the interior of the first annular shell.

[0013] Preferably, the interior of the heat-conducting groove on the first rubber ring and the interior of the heat-conducting groove on the second rubber ring are both filled with thermally conductive silicone.

[0014] Preferably, the first heat conductor and the second heat conductor are made of the same material, and both have deformable properties.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: through the coordinated design of the circulation component and the heat-conducting structure, an active temperature regulation function is constructed. The circulation component can deliver coolant or heat-insulating liquid through the liquid inlet pipe, metal hose, and liquid outlet pipe. With the efficient heat conduction of the first heat conductor and the second heat conductor, uniform temperature control of the M-shaped sealing ring, the first rubber ring, and the second rubber ring is achieved. At the same time, the heat-conducting silicone in the heat-conducting groove eliminates the thermal resistance gap, further improving the heat exchange efficiency. This design effectively avoids the performance degradation of the sealing component due to temperature fluctuations, making the structure adaptable to different temperature environments within a certain range, greatly improving the service life of the M-shaped sealing ring, and reducing maintenance costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the left-side cross-sectional structure of the present invention;

[0020] Figure 4This is a schematic cross-sectional view of the right side of this utility model.

[0021] In the figure: 1. M-shaped sealing ring; 2. First rubber ring; 3. Second rubber ring; 4. Heat conduction groove; 5. First heat conductor; 6. Second heat conductor; 7. First annular shell; 8. Second annular shell; 9. First partition; 10. Second partition; 11. Liquid inlet pipe; 12. Metal hose; 13. Liquid outlet pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: an anti-jamming and anti-leakage structure, including a circulation component comprising a liquid inlet pipe 11, a metal hose 12, and a liquid outlet pipe 13. One end of the liquid inlet pipe 11 is sealed and penetrates the side wall of the second annular shell 8 and communicates with the interior of the second annular shell 8. One end of the liquid outlet pipe 13 is sealed and penetrates the side wall of the first annular shell 7 and communicates with the interior of the first annular shell 7. One end of the metal hose 12 is sealed and penetrates the side wall of the second annular shell 8 and communicates with the interior of the second annular shell 8, and the other end penetrates the interior of the M-shaped sealing ring 1 and communicates with the interior of the first annular shell 7.

[0024] The circulation assembly includes a liquid inlet pipe 11, a metal hose 12, and a liquid outlet pipe 13. One end of the liquid inlet pipe 11 is sealed and penetrates the side wall of the second annular shell 8 and communicates with the interior of the second annular shell 8. One end of the liquid outlet pipe 13 is sealed and penetrates the side wall of the first annular shell 7 and communicates with the interior of the first annular shell 7. One end of the metal hose 12 is sealed and penetrates the side wall of the second annular shell 8 and communicates with the interior of the second annular shell 8, while the other end penetrates the interior of the M-shaped sealing ring 1 and communicates with the interior of the first annular shell 7.

[0025] In this embodiment of the invention, the M-shaped sealing ring 1 serves as the core sealing component. Its two ends form an integrated sealing structure with the first rubber ring 2 and the second rubber ring 3, respectively. When the pipeline is pressurized, the M-shaped sealing ring 1 expands evenly to both sides under pressure, forming a large-area tight fit with the inner wall of the pipeline. Simultaneously, the first rubber ring 2 and the second rubber ring 3 provide support and limit to both ends of the M-shaped sealing ring 1, preventing it from rolling or twisting. The first annular shell 7 and the second annular shell 8 are respectively wrapped around the outer circumference of the first rubber ring 2 and the second rubber ring 3 through a sealing and fixing method, which not only enhances the structural stability of the rubber rings but also provides an installation carrier for the circulation assembly. When the circulation assembly is working, external temperature-regulating liquids, such as coolant or heat-insulating liquid, enter the interior of the second annular shell 8 through the liquid inlet pipe 11, flow through the metal hose 12 to the first annular shell 7, and finally exit from the liquid outlet pipe 13, forming a closed circulation channel. This transmission process enables the directional flow of temperature-regulating liquid within the annular shell, which can quickly remove excess heat from the sealing components or replenish heat, preventing the M-shaped sealing ring 1 from failing due to high-temperature aging or low-temperature embrittlement. At the same time, the integrated sealing structure combined with the protective function of the annular shell effectively prevents corrosive media such as strong acids and alkalis in the pipeline from directly contacting the sealing components, significantly improving the leak-proof stability and service life of the structure.

[0026] Please see Figure 3 and Figure 4 Furthermore, a second partition 10 is fixedly installed on the inner wall of the second annular shell 8, and the second partition 10 is located between the liquid inlet pipe 11 and the metal hose 12; a first partition 9 is fixedly installed inside the first annular shell 7, and the first partition 9 is located between the metal hose 12 and the liquid outlet pipe 13.

[0027] In this embodiment of the invention, when the temperature-regulating liquid enters the second annular shell 8, the second baffle 10 blocks and limits the liquid, forcing it to flow completely around the annular cavity of the second annular shell 8. This ensures that the liquid fully contacts the inner wall of the second annular shell 8 and the first heat conductor 5 before flowing into the first annular shell 7 through the metal hose 12. Similarly, the first baffle 9 prevents the liquid from flowing directly to the liquid outlet pipe 13 within the first annular shell 7, ensuring that the liquid fully covers the annular cavity of the first annular shell 7 before being discharged. This transmission process avoids short-circuit flow of the liquid within the annular shell, ensuring the heat exchange efficiency between the temperature-regulating liquid and the sealing components. This allows for uniform temperature regulation of the first rubber ring 2, the second rubber ring 3, and the M-shaped sealing ring 1, effectively preventing the performance degradation of the sealing components caused by excessively high or low local temperatures. This further improves the adaptability of the structure under extreme temperature conditions. At the same time, the baffle does not increase the sealing difficulty; instead, it enhances the stability of the circulation system by optimizing the flow channel, indirectly ensuring the leak-proof effect.

[0028] Please see Figure 2Furthermore, the outer wall of the first rubber ring 2 is provided with a plurality of heat-conducting grooves 4, and a first heat-conducting body 5 is inserted into the interior of each heat-conducting groove 4. The ends of the first heat-conducting body 5 are sealed and penetrate the outer wall of the second annular shell 8, and the penetrating ends of the first heat-conducting body 5 extend into the interior of the second annular shell 8.

[0029] In an embodiment of this utility model, the heat-conducting groove 4 on the first rubber ring 2 provides a precise installation position for the first heat conductor 5. One end of the first heat conductor 5 is embedded in the heat-conducting groove 4 and fits tightly against the first rubber ring 2, while the other end extends into the interior of the second annular shell 8 and comes into direct contact with the temperature-regulating liquid, forming a heat conduction path between the rubber ring, the heat conductor, and the regulating liquid. When the first rubber ring 2 accumulates heat due to the increased temperature of the pipeline medium, the heat is quickly transferred to the first heat conductor 5 through thermal conduction, and then transferred by the first heat conductor 5 to the flowing liquid inside the annular shell, achieving rapid heat dissipation. When the ambient temperature is too low, the heat carried by the liquid is transferred in the opposite direction through the first heat conductor 5 to the first rubber ring 2 and the M-shaped sealing ring 1 connected thereto, preventing the seal from becoming brittle. This transmission process enhances the heat exchange efficiency between the sealing component and the temperature regulation system, solves the temperature adaptation problem caused by the poor thermal conductivity of traditional rubber seals, and ensures that the M-shaped sealing ring 1 always maintains a suitable elastic state. This avoids carbonization aging at high temperatures and breakage damage at low temperatures, and also ensures the tight fit between the seal and the inner wall of the pipeline, effectively preventing jamming and leakage problems caused by the deterioration of the seal performance.

[0030] Please see Figure 3 Furthermore, the outer wall of the second rubber ring 3 is provided with a plurality of heat conduction grooves 4 that are identical in structure to the heat conduction grooves 4 on the outer wall of the first rubber ring 2. A second heat conductor 6 is inserted into the interior of each heat conduction groove 4. The ends of the second heat conductor 6 are sealed and penetrate the outer wall of the first annular shell 7, and the penetrating ends of the second heat conductor 6 extend into the interior of the first annular shell 7.

[0031] In this embodiment of the invention, the second rubber ring 3 and the first rubber ring 2 adopt a symmetrical heat-conducting structure design. The second heat conductor 6 is embedded in the second rubber ring 3 through the heat-conducting groove 4 and extends into the first annular shell 7, forming a heat conduction connection with the circulating liquid inside the annular shell. Its transmission process is consistent with that of the first heat conductor 5. Through a bidirectional symmetrical heat conduction path, uniform temperature control is achieved at both ends of the M-shaped sealing ring 1, avoiding uneven elasticity and unbalanced force caused by temperature differences at both ends of the sealing ring. This design makes the temperature regulation coverage of the sealing assembly more comprehensive, ensuring the overall performance stability of the M-shaped sealing ring 1. It not only improves the anti-jamming and leak-proof symmetry and reliability of the structure, but also simplifies the installation process through the symmetrical structure. At the same time, the setting of dual heat conductors further enhances the heat exchange efficiency, enabling the structure to adapt to a wider range of temperature fluctuation conditions and expanding the application scenarios.

[0032] Please see Figure 1Furthermore, the interior of the heat-conducting groove 4 on the first rubber ring 2 and the interior of the heat-conducting groove 4 on the second rubber ring 3 are both filled with thermally conductive silicone.

[0033] In this embodiment of the invention, thermally conductive silicone fills the gap between the thermally conductive groove 4 and the first thermally conductive body 5 and the second thermally conductive body 6, forming a seamless thermal conduction interface. When heat is transferred between the rubber ring and the thermally conductive body, the thermally conductive silicone eliminates the thermal resistance caused by the contact gap, making heat transfer smoother and more efficient, and avoiding local heat accumulation caused by the gap. At the same time, the thermally conductive silicone has a certain degree of elasticity and sealing, which can compensate for the installation error between the thermally conductive body and the thermally conductive groove, enhance the connection stability between the thermally conductive body and the rubber ring, and prevent the thermally conductive body from loosening and shifting during pipeline vibration or clamping operations. In addition, the thermally conductive silicone itself has corrosion resistance and high temperature resistance, and will not fail due to media erosion or temperature changes. This transmission process reduces thermal resistance by optimizing the heat conduction path, further improving the accuracy and efficiency of temperature regulation. At the same time, the sealing and buffering effect ensures the stability of the thermally conductive structure, indirectly enhancing the anti-jamming and anti-leakage performance of the overall structure, and avoiding the hidden dangers of sealing gaps and jamming caused by the loosening of the thermally conductive body.

[0034] Please see Figure 1 Furthermore, the first heat conductor 5 and the second heat conductor 6 are made of the same material, and both have deformable properties.

[0035] In the embodiments of this utility model, the first heat conductor 5 and the second heat conductor 6 are made of the same deformable heat-conducting material, such as a bendable metal heat-conducting sheet or a flexible polymer heat-conducting material. When the pipe is clamped, the squeezing force of the pipe is transmitted to the heat conductor through the sealing component. The heat conductor adapts to the deformation of the rubber ring and the annular shell due to its own deformability, avoiding the breakage or loosening of the rigid heat conductor due to excessive force. At the same time, the design of the same material ensures that the heat conduction efficiency of the two is consistent, so that the temperature regulation effect at both ends of the M-shaped sealing ring 1 is kept synchronized. The deformation coordination of the heat conductor and the sealing component is realized, which not only ensures the continuity of the heat conduction function, but also avoids structural damage caused by the rigidity of the heat conductor. It effectively prevents heat exchange failure and temperature imbalance of the sealing component caused by the breakage of the heat conductor. At the same time, the deformability ensures that the heat conductor always maintains close contact with the rubber ring and the annular shell, further improving the heat exchange efficiency and structural stability, and providing double protection for the anti-clamping and anti-leakage function.

[0036] The workflow of this embodiment is as follows:

[0037] 1. Before the anti-jamming and anti-leakage structure is put into use in the pipeline system, the connection with the external temperature-regulating liquid supply device is completed. The liquid inlet pipe 11 is sealed and connected to the liquid outlet end of the supply device, and the liquid outlet pipe 13 is sealed and connected to the liquid return end of the supply device to form a complete liquid circulation loop. When the pipeline starts to transport the medium and the anti-jamming and anti-leakage protection function is activated, the external temperature-regulating liquid, selected as coolant or heat-insulating liquid according to the working conditions, is injected into the second annular shell 8 through the liquid inlet pipe 11 at a stable flow rate under the power drive of the supply device.

[0038] 2. The regulating liquid entering the second annular shell 8 cannot flow directly to the metal hose 12 due to the obstruction of the second partition 10. Instead, it can only flow clockwise or counterclockwise around the annular cavity of the second annular shell 8. During this process, the liquid is in full contact with the inner wall of the second annular shell 8 and the insertion end of the first heat conductor 5. If the temperature of the medium in the pipe is too high, the liquid absorbs the heat transferred by the first heat conductor 5 to one end of the first rubber ring 2 and the M-shaped sealing ring 1 through heat exchange. If the ambient temperature is too low, the liquid releases heat and transfers it in the opposite direction to the first rubber ring 2 and the M-shaped sealing ring 1 through the first heat conductor 5 to achieve temperature compensation.

[0039] 3. The regulating liquid that completes the heat exchange inside the second annular shell 8 flows along the annular chamber to the inlet end of the metal hose 12, and flows smoothly into the first annular shell 7 through the channel inside the M-shaped sealing ring 1 via the metal hose 12. The liquid entering the first annular shell 7 is limited by the first partition 9 and also needs to flow around the annular chamber of the first annular shell 7 completely. During this time, it exchanges heat with the inner wall of the first annular shell 7 and the extension end of the second heat conductor 6, and simultaneously completes the temperature regulation of the second rubber ring 3 and the other end of the M-shaped sealing ring 1 to ensure that the overall temperature of the M-shaped sealing ring 1 is uniform.

[0040] 4. Finally, the regulating liquid that has completed bidirectional heat exchange flows to the inlet end of the liquid outlet pipe 13, and flows back to the external supply device through the liquid outlet pipe 13. After being processed by the device, it can re-enter the circulation, realizing the reuse of the regulating liquid. At the same time, in the entire process, the M-shaped sealing ring 1 is kept in close contact with the inner wall of the pipe under the support of the first rubber ring 2 and the second rubber ring 3. The first annular shell 7 and the second annular shell 8 prevent the medium in the pipe from directly contacting the sealing component through the sealing structure. Together with the temperature regulation function, they achieve the dual effect of preventing jamming and leakage.

[0041] 5. If it is necessary to check the operating status of the structure, the liquid flow rate and temperature monitoring data of the supply device can be observed, or a pressure test can be performed on the pipeline: if the liquid circulation is smooth and the temperature of the sealing components is stable within the preset range, and there is no leakage during the pressure test, it indicates that the structure is working normally; if there is abnormal liquid flow or leakage, the sealing condition of the circulation components or the fit between the heat conductor and the annular shell can be checked in a targeted manner to eliminate the fault in time.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A structure for preventing jamming and leakage, characterized in that, The system includes an M-shaped sealing ring (1), one end of which is fixedly connected to a first rubber ring (2), and the other end is fixedly connected to a second rubber ring (3); a second annular shell (8) is fixedly installed on the outer peripheral wall of the first rubber ring (2), and a first annular shell (7) is fixedly installed on the outer peripheral wall of the second rubber ring (3); fluid communication is achieved between the first annular shell (7) and the second annular shell (8) through a circulation assembly. The circulation assembly includes a liquid inlet pipe (11), a metal hose (12), and a liquid outlet pipe (13). One end of the liquid inlet pipe (11) is sealed through the side wall of the second annular shell (8) and communicates with the interior of the second annular shell (8). One end of the liquid outlet pipe (13) is sealed through the side wall of the first annular shell (7) and communicates with the interior of the first annular shell (7). One end of the metal hose (12) is sealed through the side wall of the second annular shell (8) and communicates with the interior of the second annular shell (8), while the other end passes through the interior of the M-shaped sealing ring (1) and communicates with the interior of the first annular shell (7).

2. The anti-jamming and anti-leakage structure according to claim 1, characterized in that, The inner wall of the second annular shell (8) is fixedly equipped with a second partition (10), and the second partition (10) is located between the liquid inlet pipe (11) and the metal hose (12); the inside of the first annular shell (7) is fixedly equipped with a first partition (9), and the first partition (9) is located between the metal hose (12) and the liquid outlet pipe (13).

3. The anti-jamming and anti-leakage structure according to claim 1, characterized in that, The outer wall of the first rubber ring (2) is provided with a plurality of heat-conducting grooves (4), and a first heat-conducting body (5) is inserted into the interior of each heat-conducting groove (4). The end of the first heat-conducting body (5) is sealed through the outer wall of the second annular shell (8), and the through end of the first heat-conducting body (5) extends into the interior of the second annular shell (8).

4. The anti-jamming and anti-leakage structure according to claim 1, characterized in that, The outer wall of the second rubber ring (3) is provided with a plurality of heat conduction grooves (4) that are consistent with the structure of the heat conduction grooves (4) on the outer wall of the first rubber ring (2). A second heat conductor (6) is inserted inside each heat conduction groove (4). The end of the second heat conductor (6) is sealed through the outer wall of the first annular shell (7), and the through end of the second heat conductor (6) extends into the interior of the first annular shell (7).

5. The anti-jamming and anti-leakage structure according to claim 1, characterized in that, The interior of the heat-conducting groove (4) on the first rubber ring (2) and the interior of the heat-conducting groove (4) on the second rubber ring (3) are both filled with thermally conductive silicone.

6. The anti-jamming and anti-leakage structure according to claim 3, characterized in that, The first heat conductor (5) and the second heat conductor (6) are made of the same material and both have deformable properties.

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