Cable penetration device and method

Abstract

The present invention relates to a cable tunneling device and method, belonging to the field of tunnel construction. The cable tunneling device includes: a tunneling sleeve, a stop assembly, and a sealing assembly. The tunneling sleeve is used to pass through a steel sealing door, is sleeved on a cable, and has a placement hole at one end. The stop assembly includes a first sealing stop sleeve and a second sealing stop sleeve. The first sealing stop sleeve is sleeved on the cable, and the second sealing stop sleeve is sleeved on the first sealing stop sleeve. The second sealing stop sleeve is arranged in the placement hole. The inner wall of the second sealing stop sleeve away from the opening of the placement hole is provided with a sealing groove, and a sealing cavity is formed between the sealing groove and the outer wall of the cable. A soft sealing material is provided in the sealing cavity. Two groups of sealing assemblies are provided and are respectively arranged at both ends of the tunneling sleeve. In the present invention, the soft sealing material is used to seal between the cable and the second sealing stop sleeve to prevent water from entering, thereby improving the sealing and reliability of the cable.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel construction, and in particular relates to a cable tunneling device and method. Background Art

[0002] The immersed tube method is a common construction method for submarine tunnels. Removable steel end-sealing doors are installed at each end of the tube segment. Once these doors are installed, the tube segment becomes a sealed box. Multiple boxes connected together form a submarine tunnel.

[0003] The last section of the immersed tube during the construction process is called the final joint. The installation of the final joint requires the cooperation of many equipment such as cameras, lighting, measurement and control equipment, etc. The installation of these equipment requires the cables to pass through the steel sealing door inside the immersed tube, and the steel sealing door is subject to water pressure on both the inside and outside, which will affect the sealing reliability of the cable. Summary of the Invention

[0004] In response to the shortcomings in the relevant technology, the present invention provides a cable cabin penetration device and method, which fixes the cable to the steel sealing door through a cabin penetration sleeve and a stop assembly. The stop assembly provides sealing to improve the reliability of the cable, thereby solving the technical problem of poor cable sealing reliability in the prior art.

[0005] The present invention provides a cable cabin penetration device, comprising:

[0006] A cabin penetration sleeve, which is used to pass through the steel sealing door and is sleeved on the cable. One end of the cabin penetration sleeve is provided with a placement hole;

[0007] A stop assembly, the stop assembly comprising a first sealing stop sleeve and a second sealing stop sleeve, the first sealing stop sleeve being sleeved on the cable, the second sealing stop sleeve being sleeved on the first sealing stop sleeve; the second sealing stop sleeve being arranged in the placement hole; a sealing groove being formed on the inner wall of the second sealing stop sleeve away from the opening of the placement hole, a sealing cavity being formed between the sealing groove and the outer wall of the cable; a soft sealing material being arranged in the sealing cavity;

[0008] The sealing assembly is provided in two groups and is respectively arranged at the two ends of the cabin penetration sleeve.

[0009] In the technical solution, the cabin penetration casing passes through the steel sealing door to provide a path for the cable to pass through the steel sealing door. The first sealing stop sleeve is used to protect the part of the cable passing through the steel sealing door. The first sealing stop sleeve and the second sealing stop sleeve are used to seal the cable and the cabin penetration casing. Soft sealing material is used to seal the cable and the second sealing stop sleeve to prevent water from entering, thereby improving the sealing and reliability of the cable.

[0010] In some embodiments, two moving blocks are provided in the sealing groove, and the soft sealing material is provided between the two moving blocks; the second sealing stop sleeve is passed through and threadedly connected with a screw near the end face of the moving block, and the screw abuts and pushes the corresponding moving block close to the other moving block to extrude the soft sealing material.

[0011] In the technical solution, after the soft sealing material is placed between the two moving blocks, the first sealing stop sleeve and the second sealing stop sleeve are installed, the screw is turned, and the screw pushes the corresponding moving block close to the other moving block to increase the pressure of the soft sealing material, further fill the gap between the cable and the second sealing stop sleeve, and improve the sealing of the cable.

[0012] In some embodiments, the sealing assembly further includes a load-bearing member and a rubber sheath, each load-bearing member in the two groups of sealing assemblies is respectively connected to the cabin penetration sleeve and the first sealing stop sleeve, and the load-bearing member is sleeved on the cable; the rubber sheath is sleeved on and connected to the load-bearing member, and the rubber sheath extends to a side away from the cabin penetration sleeve, and one end of the rubber sheath away from the cabin penetration sleeve is tightly attached to the outer wall of the cable, and a sealed space for injecting sealant is formed between the rubber sheath, the load-bearing member and the cable.

[0013] In the technical solution, a rubber sheath wraps part of the cable and part of the load-bearing parts, and a sealant is injected into the sealed space to fill the sealed space. The sealant fills the gaps between the various structures to further prevent water from entering and improve the sealing performance.

[0014] In some embodiments, the sealing assembly further includes a first threaded member and a second threaded member, one end of the first sealing stop sleeve extends outside the placement hole and is provided with a first threaded segment; the end of the penetration sleeve facing away from the first threaded segment is provided with a second threaded segment; the first threaded members in the two groups of sealing assemblies are respectively connected to the first threaded segment and the second threaded segment; the second threaded member is provided at the end of the load-bearing member facing away from the penetration sleeve, and the second threaded member interference fits the load-bearing member with the cable.

[0015] In this technical solution, the load-bearing members in the two sealing assemblies are connected to the tank penetration sleeve and the first sealing stop sleeve, respectively. A cable is encased in the load-bearing members to prevent water from entering the tank penetration sleeve and the first sealing stop sleeve through the gap between the load-bearing members and the cable. A second threaded member locks the gap between the load-bearing members and the cable, further preventing water from entering and improving the seal.

[0016] The present invention also provides a cable cabin penetration method, which uses the cable cabin penetration device as described above, and includes the following steps:

[0017] Pre-installation: passing the cable through the rubber sheath, the load-bearing member, the cabin sleeve, the first sealing stop sleeve and the second sealing stop sleeve;

[0018] Installation in the connection area: passing the cable through the first sealing stop sleeve, inserting the second sealing stop sleeve into the first sealing stop sleeve, and placing the second sealing stop sleeve into the cabin penetration sleeve;

[0019] Installation in the sealing area: connecting the two load-bearing members to the cabin penetration sleeve and the first sealing stop sleeve respectively through the first threaded member;

[0020] Filling, injecting sealant into the sealed space between the load-bearing member, the rubber sheath and the cable, and tightening the rubber sheath with a locking member;

[0021] For overall installation, pass the cabin casing through the steel sealed door and connect it to the steel sealed door.

[0022] In this technical solution, the first and second sealing stop sleeves seal the gap between the penetration sleeve and the cable. Load-bearing components seal both ends of the penetration sleeve, and sealant fills the sealed space. The sealant fills the gaps between the various structures, further preventing water ingress and improving sealing. Finally, the penetration sleeve is secured to the steel sealing door, completing the connection.

[0023] In some embodiments, in the step of installing the connection area, before installing the second sealing stop sleeve, a soft sealing material is installed in the sealing groove of the second sealing stop sleeve.

[0024] In the technical solution, a soft sealing material is used to seal between the cable and the second sealing stop sleeve to prevent water from entering, thereby improving the sealing and reliability of the cable.

[0025] In some embodiments, in the step of installing the connection area, the soft sealing material is installed between two moving blocks in the sealing groove;

[0026] After the second sealing stop sleeve is put on the first sealing stop sleeve, the screw is rotated to move toward the moving block.

[0027] In the technical solution, when the screw is turned, the screw pushes the corresponding moving block closer to another moving block to increase the pressure of the soft sealing material, further filling the gap between the cable and the second sealing stop sleeve, and improving the sealing of the cable.

[0028] In some embodiments, in the sealing area installation step, after the two load-bearing members are respectively connected to the cabin penetration sleeve and the first sealing stop sleeve through the first threaded member, the second threaded member is used to tightly fit the end of the load-bearing member away from the cabin penetration sleeve to the cable.

[0029] In the technical solution, the gap between the load-bearing member and the cable is locked by the second threaded member to further prevent water from entering and improve the sealing performance.

[0030] In some embodiments, in the overall installation step, a specific step is to use a connecting piece to penetrate the flange ring on the penetration sleeve and connect it to the steel sealing door.

[0031] In the technical solution, the flange ring is a commonly used standard part, which is easy to purchase, and the connection process between the flange ring and the steel sealing door is simple and has a good sealing effect.

[0032] In some embodiments, during the step of installing the sealing area, the rubber sheath is sleeved and connected to the corresponding load-bearing member.

[0033] In the technical solution, the rubber sheath is used to form a sealed space between the cable and the load-bearing member so that the sealant can be injected and will not flow out.

[0034] Based on the above technical solution, in an embodiment of the present invention, the cabin penetration casing passes through the steel sealing door to provide a path for the cable to pass through the steel sealing door, the part of the cable passing through the steel sealing door is protected by the first sealing stop sleeve, the cable and the cabin penetration casing are sealed by the first sealing stop sleeve and the second sealing stop sleeve, and the cable and the second sealing stop sleeve are sealed by a soft sealing material to prevent water from entering, thereby improving the sealing and reliability of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0036] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a cable penetration device of the present invention;

[0037] Figure 2 Schematic cross-section of an embodiment of a cable penetration device according to the present invention;

[0038] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0039] Figure 4 This is a schematic diagram of the first sealing stop sleeve part of an embodiment of the cable entry device of the present invention.

[0040] In the picture:

[0041] 100. Through-tank casing; 101. Flange ring; 200. First sealing stop sleeve; 201. Limiting ring; 300. Second sealing stop sleeve; 301. Limiting groove; 302. Sealing groove; 400. Load-bearing part; 500. First threaded part; 600. Rubber sheath; 601. Sealing space; 700. Locking part; 800. Second threaded part; 900. Through groove; 110. Moving block; 120. Soft sealing material. DETAILED DESCRIPTION

[0042] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0044] The terms "first," "second," and "third" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first," "second," or "third" may explicitly or implicitly include one or more of such features.

[0045] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0046] As attached Figures 1 to 3As shown, in an illustrative embodiment of the cable cabin penetration device of the present invention, the cabin penetration device includes: a cabin penetration sleeve 100, a stop assembly and a sealing assembly, wherein the cabin penetration sleeve 100 is used to pass through the steel sealing door, the cabin penetration sleeve 100 is sleeved on the cable, and a placement hole is opened at one end of the cabin penetration sleeve 100; the stop assembly includes a first sealing stop sleeve 200 and a second sealing stop sleeve 300, the first sealing stop sleeve 200 is sleeved on the cable, and the second sealing stop sleeve 300 is sleeved on the first sealing stop sleeve 200; the second sealing stop sleeve 300 is arranged in the placement hole; the inner wall of the second sealing stop sleeve 300 away from the opening end of the placement hole is provided with a sealing groove 302, and a sealing cavity is formed between the sealing groove 302 and the outer wall of the cable; a soft sealing material 120 is provided in the sealing cavity; two groups of sealing assemblies are provided and are respectively arranged at both ends of the cabin penetration sleeve 100.

[0047] In the present invention, the cabin penetration casing 100 passes through the steel sealing door to provide a path for the cable to pass through the steel sealing door. The first sealing stop sleeve 200 is used to protect the part of the cable passing through the steel sealing door. The first sealing stop sleeve 200 and the second sealing stop sleeve 300 are used to seal the cable and the cabin penetration casing 100. The soft sealing material 120 is used to seal the cable and the second sealing stop sleeve 300 to prevent water from entering, thereby improving the sealing and reliability of the cable.

[0048] Specifically, the through-tank sleeve 100 is in the shape of a circular tube, and the length of the through-tank sleeve 100 is preferably not less than the width of the steel sealing door. In one embodiment, no gap is left between the through-tank sleeve 100 and the steel sealing door.

[0049] In some embodiments, two movable blocks 110 are disposed within the sealing groove 302, with a soft sealing material 120 disposed between the two movable blocks 110. A screw is threadedly connected to and penetrates the end surface of the second sealing stop sleeve 300 near one end of the movable block 110. The screw abuts and pushes the corresponding movable block 110 toward the other movable block 110, thereby squeezing the soft sealing material 120. After the soft sealing material 120 is placed between the two movable blocks 110 and the first sealing stop sleeve 200 and the second sealing stop sleeve 300 are installed, the screw is rotated, pushing the corresponding movable block 110 toward the other movable block 110, thereby increasing the pressure of the soft sealing material 120, further filling the gap between the cable and the second sealing stop sleeve 300, and improving the sealing performance of the cable.

[0050] In some embodiments, a flange ring 101 is provided at one end of the tank penetration sleeve 100, and the flange ring 101 is used to connect to the steel sealing door. The tank penetration sleeve 100 is connected to the steel sealing door via the flange ring 101 to prevent the tank penetration sleeve 100 from separating from the steel sealing door, thereby improving structural strength.

[0051] Specifically, the placement hole is a circular hole and is opened at one end of the through-tank casing 100 away from the flange ring 101 , and the placement hole is coaxially arranged with the through-tank casing 100 .

[0052] In some embodiments, the second sealing stop sleeve 300 is formed by splicing two half rings. After the cable is passed through the first sealing stop sleeve 200, the two half rings are spliced ​​onto the first sealing stop sleeve 200 to form the second sealing stop sleeve 300. The second sealing stop sleeve 300 is then placed in the placement space for easy manual installation.

[0053] Reference Figure 2 and Figure 4 Specifically, the inner walls of the two half-rings are each provided with a half-groove. After the two half-rings are joined to form the second sealing stop sleeve 300, the half-grooves within each half-ring are joined to form a retaining groove 301. The first sealing stop sleeve 200 is a circular tube, and a retaining ring 201 is coaxially disposed on its outer circumferential wall. The inner wall of the second sealing stop sleeve 300 is provided with a retaining groove 301 for the retaining ring 201 to engage. After the cable is passed through the first sealing stop sleeve 200 and the cabin penetration casing 100, the two half-rings are spliced ​​onto the outside of the first sealing stop sleeve 200 to form the second sealing stop sleeve 300. The retaining ring 201 and the retaining groove 301 are engaged. The second sealing stop sleeve 300 and the first sealing stop sleeve 200 are both placed within the cabin penetration casing 100, with the first sealing stop sleeve 200, the sealing stop sleeve, and the cabin penetration casing 100 being coaxial.

[0054] Please refer to Figures 1 to 4 In some embodiments, the sealing assembly further includes a load-bearing member 400 and a rubber sheath 600. Each load-bearing member 400 in the two sealing assemblies is connected to the penetration sleeve 100 and the first sealing stop sleeve 200, respectively. The load-bearing member 400 is sleeved over the cable. The rubber sheath 600 is sleeved and connected to the load-bearing member 400, extending away from the penetration sleeve 100. The end of the rubber sheath 600 away from the penetration sleeve 100 abuts against the outer wall of the cable. A sealed space 601 for injecting sealant is formed between the rubber sheath 600, the load-bearing member 400, and the cable. The rubber sheath 600 wraps a portion of the cable and a portion of the load-bearing member 400. Sealant is injected into the sealed space 601 to fill the space. The sealant blocks the gaps between the various structures, further preventing water from entering and improving the sealing performance.

[0055] Specifically, the rubber sheath 600 is in a circular tubular shape and is coaxially sleeved on the corresponding load-bearing member 400. The rubber sheath 600 is arranged at the end of the load-bearing member 400 away from the cabin sheath. The rubber sheath 600 and the load-bearing member 400 can be connected by a cable tie or by hot melt.

[0056] In some embodiments, a locking member 700 is disposed at the end of the rubber sheath 600 away from the penetration sleeve 100. The locking member 700 is used to tighten the rubber sheath 600 to close any gaps between the rubber sheath 600 and the outer wall of the cable. After injecting sealant into the sealed space 601, the locking member 700 is used to tighten the rubber sheath 600, preventing the sealant from leaking from the sealed space 601 and preventing water from entering the sealed space 601 and affecting the sealant.

[0057] In some embodiments, the sealing assembly further includes a first threaded member 500 and a second threaded member 800. One end of the first sealing stopper 200 extends beyond the placement hole and is provided with a first threaded segment. The end of the penetration casing 100 facing away from the first threaded segment is provided with a second threaded segment. The first threaded member 500 in both sealing assemblies is respectively connected to the first and second threaded segments. The second threaded member 800 is provided at the end of the load-bearing member 400 facing away from the penetration casing 100, and the second threaded member 800 creates an interference fit between the load-bearing member 400 and the cable. The load-bearing member 400 in both sealing assemblies is respectively connected to the penetration casing 100 and the first sealing stopper 200. The load-bearing member 400 is sleeved with the cable to prevent water from entering the penetration casing 100 and the first sealing stopper 200 through the gap between the load-bearing member 400 and the cable. The second threaded member 800 locks the gap between the load-bearing member 400 and the cable, further preventing water from entering and improving sealing.

[0058] Specifically, the first threaded member 500 and the second threaded member 800 are both nuts. The ends of the two load-bearing members 400 facing away from the penetration casing 100 are respectively provided with third and fourth threaded segments. Cables are sleeved over the third and fourth threaded segments, and the corresponding threaded members are connected to the third and fourth threaded segments to reduce the inner diameter of the end of the load-bearing member 400 facing away from the penetration casing 100, thereby sealing the space between the load-bearing member 400 and the cable, preventing water from entering and improving the sealing performance.

[0059] In some embodiments, a through-slot 900 is defined in a portion of the load-bearing member 400 located within the sealed space 601. The sealant within the sealed space 601 flows through the through-slot 900 into the gap between the load-bearing member 400 and the cable. During injection, the sealant flows through the through-slot 900 into the gap between the load-bearing member 400 and the cable, sealing the gap between the load-bearing member 400 and the cable, further preventing water intrusion and improving sealing.

[0060] The present invention also provides a cable passage method, which uses the above cable passage device to pass the cable through the steel sealed door, comprising the following steps:

[0061] S100 Pre-installation: Pass the cable through the rubber sheath 600, the load-bearing member 400, the cabin casing 100, the first sealing stop sleeve 200 and the second sealing stop sleeve 300;

[0062] In this step, it should be noted that there are two rubber sleeves and two load-bearing parts 400, so the order in which the cable passes through is specifically one rubber sleeve 600, one load-bearing part 400, the cabin sleeve 100, the first sealing stop sleeve 200, the second sealing stop sleeve 300, another load-bearing part 400 and another rubber sleeve 600.

[0063] It should also be noted that because a second threaded part 800 needs to be installed and there are two second threaded parts 800, the order in which the cables pass through is specifically as follows: one rubber sheath 600, one second threaded part 800, one load-bearing part 400, the cabin sleeve 100, the first sealing stop sleeve 200, the second sealing stop sleeve 300, another load-bearing part 400, another second threaded part 800 and another rubber sheath 600.

[0064] S200 Connection area installation: Put the second sealing stop sleeve 300 on the first sealing stop sleeve 200, and place the second sealing stop sleeve 300 in the cabin penetration sleeve 100;

[0065] In the step of installing the connection area, before installing the second sealing stop sleeve 300 , the step further includes installing the soft sealing material 120 in the sealing groove 302 of the second sealing stop sleeve 300 .

[0066] The specific steps for installing the soft sealing material 120 are as follows: The soft sealing material 120 is installed between the two movable blocks 110 in the sealing groove 302; a screw is inserted through the end surface of the second sealing stop sleeve 300 near the movable block 110, and after the second sealing stop sleeve 300 is placed over the first sealing stop sleeve 200, the screw is rotated toward the movable block 110. When the screw is rotated, it pushes the corresponding movable block 110 toward the other movable block 110, thereby compressing the soft sealing material 120, increasing the pressure of the soft sealing material 120, further filling the gap between the cable and the second sealing stop sleeve 300, and improving the sealing performance of the cable.

[0067] In this step, it should be noted that a soft sealing material 120 needs to be set between the second sealing stop sleeve 300 and the first sealing stop sleeve 200. Therefore, before the second sealing stop sleeve 300 is put on the first sealing stop sleeve 200, the two moving blocks 110 are placed in the sealing groove 302 of the second sealing stop sleeve 300.

[0068] S300 sealing area installation: the two load-bearing parts 400 are respectively connected to the cabin penetration casing 100 and the first sealing stop sleeve 200 through the first threaded part 500; after the two load-bearing parts 400 are respectively connected to the cabin penetration casing 100 and the first sealing stop sleeve 200 through the first threaded part 500, it also includes the step of using the second threaded part 800 to tightly fit the end of the load-bearing part 400 away from the cabin penetration casing 100 to the cable.

[0069] During the sealing area installation step, the rubber sheath 600 is sleeved and connected to the corresponding load-bearing component 400 at one end away from the penetration sleeve 100 , and the rubber sheath 600 and the load-bearing component 400 are connected by hot melting or cable ties.

[0070] In this step, it should be noted that the load-bearing member 400 and the first threaded member 500 are integrally formed. Therefore, when the two load-bearing members 400 are respectively connected to the penetration sleeve 100 and the first sealing stop sleeve 200 through the first threaded member 500, the first threaded member 500 on one of the load-bearing members 400 is aligned with the first threaded segment and rotated to complete the connection, and the first threaded member 500 on the other load-bearing member 400 is aligned with the second threaded segment and rotated to complete the connection.

[0071] S400 Filling: Inject sealant into the sealed space 601 between the load-bearing member 400, the rubber sheath 600 and the cable, and tighten the rubber sheath 600 with the locking member 700;

[0072] In this step, it should be noted that the sealant is injected from the end of the rubber sheath 600 away from the load-bearing member 400. After the sealant fills the sealed space 601 and some of the sealant flows through the through groove 900 into the gap between the load-bearing member 400 and the cable, the rubber sheath 600 is tightened using the locking member 700.

[0073] S500 overall installation: Pass the cabin casing through the steel door and connect it to the steel door.

[0074] In this step, it should be noted that, in the overall installation step, the specific steps are to pass the tank penetration sleeve 100 through the steel sealing door, fit the flange ring 101 to one side of the steel sealing door, and use a connector to pass through the flange ring 101 on the tank penetration sleeve 100 and connect it to the steel sealing door.

[0075] Through the description of multiple embodiments of the cable insertion method of the present invention, it can be seen that the cable insertion method of the present invention has at least one or more of the following advantages:

[0076] 1. The first sealing stop sleeve 200 and the second sealing stop sleeve 300 are used to block the gap between the cabin casing 100 and the cable to improve the sealing performance;

[0077] 2. The load-bearing members 400 are used to seal both ends of the through-tank casing 100, and a sealant is used to fill the sealed space 601. The sealant fills the gaps between the various structures, further preventing water from entering and improving the sealing performance.

[0078] 3. Use the soft sealing material 120 to seal the space between the cable and the second sealing stop sleeve 300 to prevent water from entering and improve the sealing performance and reliability of the cable.

[0079] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0080] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the same. Although the present invention has been described in detail with reference to preferred embodiments, persons skilled in the art should understand that the specific implementation methods of the present invention may still be modified or some technical features may be replaced by equivalents without departing from the spirit of the technical solutions of the present invention, and all of these should fall within the scope of the technical solutions claimed for protection by the present invention.

Claims

1. A cable penetration device, characterized in that: The cable penetration device comprises: A cabin penetration sleeve, which is used to pass through the steel sealing door and is sleeved on the cable. One end of the cabin penetration sleeve is provided with a placement hole; A stop assembly, the stop assembly comprising a first sealing stop sleeve and a second sealing stop sleeve, the first sealing stop sleeve being sleeved on the cable, the second sealing stop sleeve being sleeved on the first sealing stop sleeve; the second sealing stop sleeve being arranged in the placement hole; a sealing groove being formed on the inner wall of the second sealing stop sleeve away from the opening of the placement hole, a sealing cavity being formed between the sealing groove and the outer wall of the cable; a soft sealing material being arranged in the sealing cavity; Sealing components, wherein two sets of sealing components are provided and are respectively arranged at both ends of the penetration sleeve; A limiting ring is coaxially provided on the outer peripheral wall of the first sealing stop sleeve; The inner wall of the second sealing stop sleeve is provided with a limiting groove for the limiting ring to engage; the second sealing stop sleeve is formed by splicing two half rings; the inner walls of the two half rings are both provided with a half groove, the two half rings are spliced ​​together to form the second sealing stop sleeve, and the half grooves in each half ring are spliced ​​together to form the limiting groove; The sealing assembly includes a load-bearing member, a first threaded member and a second threaded member, one end of the first sealing stop sleeve extends to the outside of the placement hole and is provided with a first threaded segment; the end of the cabin penetration sleeve away from the first threaded segment is provided with a second threaded segment; the first threaded members in the two groups of sealing assemblies are respectively connected to the first threaded segment and the second threaded segment; the second threaded member is provided at the end of the load-bearing member away from the cabin penetration sleeve, and the second threaded member interference fits the load-bearing member and the cable to prevent water from flowing into the cabin penetration sleeve and the first sealing stop sleeve through the gap between the load-bearing member and the cable; two moving blocks are provided in the sealing groove, and the soft sealing material is provided between the two moving blocks; the second sealing stop sleeve is penetrated by and threadedly connected with a screw near the end face of the moving block, and the screw abuts and pushes the corresponding moving block close to the other moving block to squeeze the soft sealing material.

2. The cable entry device according to claim 1, characterized in that: The sealing assembly also includes a rubber sheath. Each load-bearing member in the two groups of sealing assemblies is respectively connected to the cabin penetration sleeve and the first sealing stop sleeve, and the load-bearing member is sleeved on the cable; the rubber sheath is sleeved on and connected to the load-bearing member, and the rubber sheath extends to the side away from the cabin penetration sleeve. The end of the rubber sheath away from the cabin penetration sleeve is tightly attached to the outer wall of the cable, and a sealed space for injecting sealant is formed between the rubber sheath, the load-bearing member and the cable.

3. A cable passage method, characterized in that: The cable penetration device according to claim 2 is used to pass the cable through the steel sealed door, comprising the following steps: Pre-installation: passing the cable through the rubber sheath, the load-bearing member, the cabin penetration sleeve, the first sealing stop sleeve and the second sealing stop sleeve; Installation in the connection area: putting the second sealing stop sleeve on the first sealing stop sleeve, and placing the second sealing stop sleeve in the cabin penetration sleeve; Sealing area installation: connecting the two load-bearing members to the cabin penetration sleeve and the first sealing stop sleeve respectively through the first threaded member; Filler: inject sealant into the sealed space between the load-bearing member, the rubber sheath and the cable, and tighten the rubber sheath with a locking member; Overall installation: pass the through-tank casing through the steel sealed door and connect it to the steel sealed door; Among them, after the cable passes through the first sealing stop sleeve, the two half rings are spliced ​​on the first sealing stop sleeve to form a second sealing stop sleeve, and then the second sealing stop sleeve is placed in the placement space to facilitate manual installation.

4. The cable insertion method according to claim 3, characterized in that: Before installing the second sealing stop sleeve, the method further includes installing a soft sealing material in the sealing groove of the second sealing stop sleeve.

5. The cable insertion method according to claim 4, characterized in that: The specific steps of installing the soft sealing material are: installing the soft sealing material between the two moving blocks in the sealing groove; after the second sealing stop sleeve is installed on the first sealing stop sleeve, rotating the screw toward the moving block to compress the soft sealing material.

6. The cable insertion method according to claim 3, characterized in that: In the sealing area installation step, after the two load-bearing members are respectively connected to the cabin penetration sleeve and the first sealing stop sleeve through the first threaded member, the step also includes using the second threaded member to tightly fit the end of the load-bearing member away from the cabin penetration sleeve to the cable.

7. The cable passage method according to claim 3, characterized in that: The specific steps of the overall installation are: using a connecting piece to penetrate the flange ring on the cabin penetration sleeve and connect it to the steel sealing door.

8. The cable insertion method according to claim 3, characterized in that: In the sealing area installation step, the rubber sheath is sleeved and connected to the corresponding load-bearing member.

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