Safety sealing electrical penetration assembly

Abstract

The invention discloses a safe sealing electrical penetration assembly which comprises a conductor assembly, a locking assembly and a containing assembly detachably installed on a containment, the locking assembly is installed on the containing assembly, and the conductor assembly is detachably installed on the containing assembly through the locking assembly; the conductor assembly comprises a plurality of conductor pieces, a ceramic sealing piece and a high polymer material sealing piece, the ceramic sealing piece is arranged between the conductor pieces on one side in the containment vessel, and the high polymer material sealing piece is arranged between the conductor pieces on one side outside the containment vessel. The conductor assemblies at the two ends of the containment are differentiated, and when the interior of the electrical penetration assembly is short-circuited, the differentiation of insulation sealing forms ensures that the two ends of the electrical penetration assembly do not fail and leak at the same time, so that the sealing reliability and safety are ensured, the safety of surrounding personnel and environment is ensured, and the economic loss is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to a safety sealed electrical penetration piece. Background Art

[0002] The sealing module used in the conductor assembly of the electrical penetration is usually made of injection molding of polyetheretherketone material, which is a high-performance thermoplastic material with good high temperature resistance, high pressure resistance and radiation resistance.

[0003] However, in some technologies, the sealing structures at both ends of the electrical penetration conductor assembly are the same, and there is a risk of common mode failure. If under extreme conditions, long-term high temperature, high pressure, radiation and aging will affect the elastic modulus and mechanical properties of the sealing module material, resulting in gaps between the sealing module and the conductor or micro-holes in the sealing module itself, that is, the sealing structures at both ends may fail at the same time. This is because the sealing materials and processes at both ends are consistent, and the environmental pressure and stress they are subjected to are the same. Therefore, in some extreme cases, they may fail at the same time, resulting in leakage accidents. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a safe sealed electrical penetration.

[0005] The technical solution adopted by the present invention to solve the technical problem is: construct a safety sealed electrical penetration, including: a conductor assembly and a locking assembly, and a receiving assembly detachably mounted on a containment shell, the locking assembly is mounted on the receiving assembly, and the conductor assembly is detachably mounted on the receiving assembly through the locking assembly;

[0006] The conductor assembly includes: a plurality of conductor parts, a ceramic seal, and a polymer seal. The ceramic seal is arranged between each of the conductor parts on the inner side of the containment shell, and the polymer seal is arranged between each of the conductor parts on the outer side of the containment shell.

[0007] Furthermore, the conductor assembly also includes a metal part arranged outside the ceramic sealing part and the polymer material sealing part.

[0008] Furthermore, the polymer material seal is made of polyetheretherketone or polyimide material.

[0009] Furthermore, each of the conductor components and the ceramic sealing component is wrapped with a transition layer, and the transition layer is made of zirconium oxide or cerium oxide.

[0010] Furthermore, the middle portion of the conductor component located in the receiving component is wrapped with an insulating layer, and the insulating layer is made of an alumina-based ceramic material.

[0011] Furthermore, the ceramic seal is formed by high-temperature sintering of ceramic material from one end of the conductor part through a ceramic sintering process, so that the conductor part, the ceramic seal, the transition layer and the metal part are sintered into one body.

[0012] Furthermore, the containment assembly includes: a sleeve, an end plate and a support sleeve, the sleeve is detachably mounted on the containment shell, the end plate is detachably or fixedly mounted on both sides of the sleeve, and the support sleeve is detachably or fixedly mounted in the sleeve, contacts with the plurality of conductor assemblies, and restricts and supports the middle parts of the plurality of conductor assemblies in the sleeve.

[0013] Furthermore, the locking assembly includes: a clamping bolt and a clamping sleeve, and an extrusion piece that cooperates with the clamping bolt and the clamping sleeve to fix the conductor assembly on the end plate, the clamping sleeve is fixedly installed on the end plate, the clamping bolt is sleeved on the conductor assembly and is connected to the clamping sleeve by a threaded pair, and the extrusion piece is sleeved on the conductor assembly between the clamping bolt and the clamping sleeve.

[0014] Furthermore, the locking assembly also includes a sealing member, which is sleeved on the conductor assembly and located between the clamping bolt and the extrusion member.

[0015] Furthermore, a pressure monitoring device is detachably mounted on the sleeve or the end plate.

[0016] The implementation of the present invention has the following beneficial effects:

[0017] In the present application, a ceramic seal is set between each conductor part on the inner side of the containment, and a polymer seal is set between each conductor part on the outer side of the containment. Since a large number of electrical components are stored inside the containment, the temperature on the inner side of the containment is higher. The ceramic seal between each conductor part on the inner side of the containment has excellent high temperature tolerance and mechanical strength, and is not easy to deform or fail under high temperature conditions, so that multiple conductor parts can still operate stably. The polymer seal between each conductor part on the outer side of the containment can have better elasticity, and can reduce the gap between the conductor assembly and the containment through elasticity, reduce dust from entering the containment, improve the sealing, and extend the service life of the internal electrical components. The conductor assembly on the outer side of the containment can be better bent and installed, which is more convenient to operate, improves the efficiency of installation and reduces labor intensity. Since the high temperature resistance of the polymer material seal on the cable insulation and the electrical penetration side is of the same order of magnitude, and the high temperature resistance of the ceramic seal is much higher than them, the conductor components located at both ends of the containment are differentiated. When a short circuit occurs inside the electrical penetration, the differentiation of the insulation sealing form ensures that both ends of the electrical penetration will not fail and leak at the same time, thereby ensuring the reliability and safety of the seal, protecting the safety of surrounding personnel and the environment, and reducing economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] In the attached figure:

[0020] Figure 1 is a structural cross-sectional view of a safety sealed electrical penetration provided by an embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of a ceramic seal and a polymer material seal provided by an embodiment of the present invention;

[0022] Figure 3 is a schematic structural diagram of a locking assembly provided by an embodiment of the present invention;

[0023] Figure 4 It is a cross-sectional schematic diagram of a conductor assembly provided in an embodiment of the present invention.

[0024] Description of symbols in the figure

[0025] Conductor assembly 1, conductor part 11, ceramic seal 12, polymer material seal 13, metal part 14, transition layer 15, containing assembly 2, sleeve 21, end plate 22, support sleeve 23, locking assembly 3, clamping bolt 31, clamping sleeve 32, extrusion part 33, seal 34, insulating layer 4, pressure monitoring device 5, containment shell 6. DETAILED DESCRIPTION

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0027] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0029] See also Figures 1 to 4 The safety sealed electrical penetration in the first embodiment of the present invention comprises: a conductor assembly 1 and a locking assembly 3, and a receiving assembly 2 detachably mounted on a safety shell 6, the locking assembly 3 being mounted on the receiving assembly 2, and the conductor assembly 1 being detachably mounted on the receiving assembly 2 through the locking assembly 3;

[0030] The conductor assembly 1 includes: a plurality of conductor parts 11, a ceramic seal 12, and a polymer material seal 13. The ceramic seal 12 is arranged between each conductor part 11 on the inner side of the containment shell 6, and the polymer material seal 13 is arranged between each conductor part 11 on the outer side of the containment shell 6.

[0031] The containment component 2 can be detachably or fixedly installed in the containment shell 6, so that both ends of the containment component 2 pass through the containment shell 6. The cross-sectional shape of the containment component 2 can be circular or polygonal. The circular containment component 2 can withstand more pressure and is not easy to deform. The inner wall of the circular containment component 2 is smoother and is not easy to produce friction with the conductor component 1, thereby reducing the wear of the conductor component 1, extending the service life, and saving maintenance costs. The polygonal containment component 2 can be better positioned with the containment shell 6, improve the efficiency and accuracy of installation, facilitate installation, and reduce the labor intensity during installation.

[0032] The present application is installed on the containing assembly 2 through the locking assembly 3, and the conductor assembly 1 is detachably installed on the containing assembly 2 through the locking assembly 3; the conductor assembly 1 includes: a plurality of conductors 11, a ceramic seal 12, and a polymer seal 13, the ceramic seal 12 is arranged between each conductor 11 on the inner side of the containment 6, and the polymer seal 13 is arranged between each conductor 11 on the outer side of the containment 6. The locking assembly 3 enables the conductor assembly 1 to be detachably installed on the containing assembly 2, and when the conductor assembly 1 fails or is worn, the operator can more conveniently replace the failed conductor assembly 1, which improves the efficiency of maintenance and facilitates installation.

[0033] Among them, the present application sets a ceramic seal 12 between each conductor 11 on the inner side of the containment shell 6, and a polymer seal 13 is set between each conductor 11 on the outer side of the containment shell 6. Since a large number of electrical components are stored inside the containment shell 6, the temperature on the inner side of the containment shell 6 is higher, and the ceramic seal 12 between each conductor 11 on the inner side of the containment shell 6 has excellent high temperature tolerance and mechanical strength, and is not easy to deform or fail under high temperature conditions, so that multiple conductors 11 can still operate stably. The polymer seal 13 between each conductor 11 on the outer side of the containment shell 6 can have better elasticity, and can reduce the gap between the conductor assembly 1 and the containment shell 6 through elasticity, reduce dust from entering the containment shell 6, improve the sealing, and extend the service life of the internal electrical components. The conductor assembly 1 on the outer side of the containment shell 6 can be better bent and installed, which is more convenient to operate, improves the efficiency of installation and reduces labor intensity. Since the high temperature resistance of the cable insulation and the polymer material seal 13 on one side of the electrical penetration is of the same order of magnitude, and the high temperature resistance of the ceramic seal 12 is much higher than them, the conductor components 1 located at both ends of the containment 6 are differentiated. When a short circuit occurs inside the electrical penetration, the differentiation of the insulating sealing form ensures that both ends of the electrical penetration will not fail and leak at the same time, thereby ensuring the reliability and safety of the seal, protecting the safety of surrounding personnel and the environment, and reducing economic losses.

[0034] See also Figures 1 to 4 In some embodiments, the conductor assembly 1 further includes a metal member 14 disposed outside the ceramic seal 12 and the polymer material seal 13 .

[0035] Among them, the metal part 14 is made of a high-strength alloy, and a high-strength alloy material with a thermal expansion coefficient similar to that of ceramic materials, such as chromium-nickel-iron alloy or kovar alloy, is formed into a circular shell through mechanical processing. The interior is hollow to accommodate the conductor part 11, the ceramic seal 12 and the polymer material seal 13, providing structural support and shielding for the conductor part 11, the ceramic seal 12 and the polymer material seal 13.

[0036] The conductor component 1 of the present application also includes a metal part 14 arranged outside the ceramic seal 12 and the polymer material seal 13. The metal part 14 wrapped around the ceramic seal 12 and the polymer material seal 13 can provide support for the ceramic seal 12 and the polymer material seal 13, so that the ceramic seal 12 and the polymer material seal 13 can be in closer contact with the conductor part 11, thereby improving the connection strength between the entire conductor component 1, and can also reduce the wear of the ceramic seal 12 and the polymer material seal 13 by the external environment, thereby increasing the service life and reducing the maintenance cost.

[0037] See also Figures 1 to 4 In some embodiments, the polymer material seal 13 is made of polyetheretherketone or polyimide material.

[0038] The polymer material seal 13 of the present application is made of polyetheretherketone or polyimide material. The polymer material seal 13 made of polyetheretherketone has good rigidity and flexibility, especially outstanding fatigue resistance under alternating stress, and can be processed in a variety of ways: injection molding, extrusion molding, compression molding, and has physical and chemical properties such as high temperature resistance and chemical corrosion resistance, and has good insulation. While improving safety, it is more wear-resistant and prolongs service life. The polymer material seal 13 made of polyimide material has good low temperature resistance and can be used in environments with low external temperatures. Then, through different external use environments, polymer material seals 13 made of different materials can be used, which are suitable for more use environments and more diversified.

[0039] See also Figures 1 to 4 In some embodiments, each conductor 11 and ceramic seal 12 is wrapped with a transition layer 15, and the transition layer 15 is made of zirconium oxide or cerium oxide.

[0040] In the present application, each conductor 11 and ceramic seal 12 is wrapped with a transition layer 15, and the transition layer 15 is made of zirconium oxide or cerium oxide. The ceramic seal 12 is located at one end of the containment. In order to alleviate the thermal stress caused by the difference in expansion coefficients of different materials, a ceramic inner and outer transition layer 15, such as zirconium oxide or cerium oxide, is introduced between the metal part 14 and the ceramic seal 12. The transition layer 15 made of zirconium oxide has high toughness, high bending strength and high wear resistance, excellent thermal insulation performance, and a thermal expansion coefficient close to that of steel. It can alleviate the thermal stress caused by the difference in expansion coefficients of different materials, avoid separation between each other, and extend the service life. Similarly, the transition layer 15 made of cerium oxide has good high temperature resistance, can alleviate the thermal stress caused by the difference in expansion coefficients of different materials, avoid separation between each other, and extend the service life.

[0041] See also Figures 1 to 4 In some embodiments, the middle portion of the conductor component 1 located in the receiving component 2 is wrapped with an insulating layer 4, and the insulating layer 4 is made of an alumina-based ceramic material.

[0042] In the present application, the middle part of the conductor component 1 located in the receiving component 2 is wrapped with an insulating layer 4. The insulating layer 4 is made of alumina-based ceramic material. The insulating layer 4 is applied to the periphery of the conductor component 1 using an alumina-based ceramic paint spraying process. It is mainly used to wrap the conductor core, replacing the traditional insulation method of wrapping the conductor core with polyetheretherketone. Alumina-based ceramic materials have excellent high temperature resistance, radiation resistance and insulation properties. The alumina-based ceramic paint spraying process improves the overall insulation performance and high temperature resistance of the conductor component 1, ensuring that the conductor component 1 can still maintain stable insulation performance in high temperature and high radiation environments, reducing the risk of insulation breakdown, improving safety, and reducing maintenance costs.

[0043] See also Figures 1 to 4 In some embodiments, the ceramic seal 12 is formed by high-temperature sintering of ceramic material from one end of the conductor 11 through a ceramic sintering molding process, and the conductor 11, the ceramic seal 12, the transition layer 15 and the metal part 14 are sintered into one body.

[0044] The present application uses a ceramic seal 12 to perform high-temperature sintering of ceramic materials from one end of the conductor part 11 through a ceramic sintering molding process, and sintering the conductor part 11, the ceramic seal 12, the transition layer 15 and the metal part 14 into one. This molding method ensures that there is no intermediate breakpoint between the conductor components 1, and has excellent high-temperature and mechanical properties. Through the integrated ceramic sintering molding process, the high-temperature sealing performance and mechanical strength of the conductor component 1 are significantly improved, while ensuring the detachability of the conductor component 1, making equipment maintenance and replacement more convenient, reducing labor intensity, and increasing service life.

[0045] See also Figures 1 to 4 In some embodiments, the containment assembly 2 includes: a sleeve 21, an end plate 22 and a support sleeve 23. The sleeve 21 is detachably mounted on the containment shell 6. The end plate 22 is detachably or fixedly mounted on both sides of the sleeve 21. The support sleeve 23 is detachably or fixedly mounted in the sleeve 21, contacts with the multiple conductor assemblies 1, and restricts and supports the middle parts of the multiple conductor assemblies 1 in the sleeve 21.

[0046] The present application comprises a housing component 2 including: a sleeve 21, an end plate 22 and a support sleeve 23, wherein the sleeve 21 is detachably mounted on the containment shell 6, the end plate 22 is detachably or fixedly mounted on both sides of the sleeve 21, and the support sleeve 23 is detachably or fixedly mounted in the sleeve 21, and contacts with multiple conductor components 1, and limits and supports the middle part of the multiple conductor components 1 in the sleeve 21, wherein the support sleeve 23 is located inside the sleeve 21, and can support the middle part of the multiple conductor components 1, and prevent the multiple conductor components 1 from sticking to each other inside the sleeve 21, which affects the heat dissipation between the multiple conductor components 1, thereby enabling the multiple conductor components 1 to have a better heat dissipation effect, improve the heat dissipation performance, and enable the multiple conductor components 1 to be more firmly mounted in the sleeve 21, thereby improving the stability during operation. The end plate 22 can improve the sealing performance, further reduce the dust from entering the containment shell 6, thereby prolonging the service life, and can also improve the connection strength between the multiple conductor components 1, making the operation process more stable.

[0047] See also Figures 1 to 4 In some embodiments, the locking assembly 3 includes: a clamping bolt 31 and a clamping sleeve 32, and an extrusion piece 33 that cooperates with the clamping bolt 31 and the clamping sleeve 32 to fix the conductor assembly 1 on the end plate 22. The clamping sleeve 32 is fixedly installed on the end plate 22. The clamping bolt 31 is sleeved on the conductor assembly 1 and is connected to the clamping sleeve 32 by a threaded pair. The extrusion piece 33 is sleeved on the conductor assembly 1 between the clamping bolt 31 and the clamping sleeve 32.

[0048] The present application fixes the conductor assembly 1 to the extrusion piece 33 on the end plate 22 by cooperating with the clamping bolt 31 and the clamping sleeve 32. The clamping sleeve 32 is fixedly installed on the end plate 22. The clamping bolt 31 is sleeved on the conductor assembly 1 and connected to the clamping sleeve 32 by a threaded pair. The extrusion piece 33 is sleeved on the conductor assembly 1 between the clamping bolt 31 and the clamping sleeve 32. By tightening the clamping bolt 31 on the clamping sleeve 32 through the threaded pair, the clamping bolt 31 will push the extrusion piece 33 to move toward the inside of the clamping sleeve 32 during the tightening process, and the inner rear end of the clamping sleeve 32 and the conical surface inclined toward the conductor assembly 1 will make the extrusion piece 33 close to the center of the conductor assembly 1 through the conical surface. The conductor assembly 1 is clamped and installed on the end plate 22 by the clamping bolt 31, the clamping sleeve 32 and the extrusion piece 33, so as to facilitate disassembly and installation, reduce labor intensity, improve efficiency during installation, reduce wear on the conductor assembly 1 during installation, thereby extending the service life and improving stability during operation.

[0049] See also Figures 1 to 4 In some embodiments, the locking assembly 3 further includes a seal 34 , which is sleeved on the conductor assembly 1 and located between the clamping bolt 31 and the extrusion member 33 .

[0050] The present application also includes a sealing member 34 through the locking assembly 3. The sealing member 34 is sleeved on the conductor assembly 1. The sealing member 34 is made of metal and is located between the clamping bolt 31 and the extrusion member 33. The sealing member 34 can improve the sealing between the clamping bolt 31 and the extrusion member 33, further reduce the entry of external dust into the containing assembly 2, so that the conductor assembly 1 in the containing assembly 2 can maintain a good heat dissipation effect for a long time, and can also reduce the corrosion of dust to the conductor assembly 1, thereby extending the service life.

[0051] See also Figures 1 to 4 In some embodiments, the sleeve 21 or the end plate 22 is detachably mounted with a pressure monitoring device 5 .

[0052] In the present application, a pressure monitoring device 5 is detachably installed on the sleeve 21 or the end plate 22. The pressure monitoring device 5 detachably installed on the sleeve 21 or the end plate 22 detects the pressure inside the containing component 2 to prevent internal combustion of the conductor component 1 inside the containing component 2. Maintenance personnel can timely maintain the conductor component 1 inside the containing component 2 by checking the numerical changes on the pressure monitoring device 5, thereby achieving the effect of safety warning and improving safety.

[0053] It can be understood that the above embodiments only express the preferred implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should belong to the scope covered by the claims of the present invention.

Claims

1. A safe sealed electrical penetration, characterized in that: include: A conductor assembly (1) and a locking assembly (3), and a containing assembly (2) detachably mounted on a containment vessel (6), wherein the locking assembly (3) is mounted on the containing assembly (2), and the conductor assembly (1) is detachably mounted on the containing assembly (2) via the locking assembly (3); The conductor assembly (1) comprises: a plurality of conductor parts (11), a ceramic seal (12), and a polymer material seal (13); the ceramic seal (12) is arranged between each of the conductor parts (11) on the inner side of the containment vessel (6); and the polymer material seal (13) is arranged between each of the conductor parts (11) on the outer side of the containment vessel (6).

2. The safety sealed electrical penetration according to claim 1, characterized in that: The conductor assembly (1) further comprises a metal part (14) arranged outside the ceramic sealing part (12) and the polymer material sealing part (13).

3. The safety sealed electrical penetration according to claim 1, characterized in that: The polymer material seal (13) is made of polyetheretherketone or polyimide material.

4. The safety sealed electrical penetration according to claim 1, characterized in that: Each of the conductors (11) and the ceramic seals (12) is wrapped with a transition layer (15), and the transition layer (15) is made of zirconium oxide or cerium oxide.

5. The safety sealed electrical penetration according to claim 1, characterized in that: The middle part of the conductor component (1) located in the receiving component (2) is wrapped with an insulating layer (4), and the insulating layer (4) is made of an alumina-based ceramic material.

6. The safety sealed electrical penetration according to claim 1, characterized in that: The ceramic sealing component (12) is subjected to high-temperature sintering of ceramic material from one end of the conductor component (11) through a ceramic sintering molding process, so that the conductor component (11), the ceramic sealing component (12), the transition layer (15) and the metal component (14) are sintered into one body.

7. The safety sealed electrical penetration according to claim 1, characterized in that: The containing assembly (2) comprises: a sleeve (21), an end plate (22) and a support sleeve (23); the sleeve (21) is detachably mounted on the containment shell (6); the end plate (22) is detachably or fixedly mounted on both sides of the sleeve (21); the support sleeve (23) is detachably or fixedly mounted in the sleeve (21), contacts with the plurality of conductor assemblies (1), and restricts and supports the middle parts of the plurality of conductor assemblies (1) in the sleeve (21).

8. The safety sealed electrical penetration according to claim 7, characterized in that: The locking assembly (3) comprises: a clamping bolt (31) and a clamping sleeve (32), and an extrusion piece (33) that cooperates with the clamping bolt (31) and the clamping sleeve (32) to fix the conductor assembly (1) on the end plate (22); the clamping sleeve (32) is fixedly mounted on the end plate (22); the clamping bolt (31) is sleeved on the conductor assembly (1) and connected to the clamping sleeve (32) by a threaded pair; the extrusion piece (33) is sleeved on the conductor assembly (1) between the clamping bolt (31) and the clamping sleeve (32).

9. The safety sealed electrical penetration according to claim 8, characterized in that: The locking assembly (3) further comprises a sealing member (34), wherein the sealing member (34) is sleeved on the conductor assembly (1) and is located between the clamping bolt (31) and the extrusion member (33).

10. The safety sealed electrical penetration according to claim 7, characterized in that: A pressure monitoring device (5) is detachably mounted on the sleeve (21) or the end plate (22).

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