Cable hole sealing and plugging structure
The cable conduit sealing structure addresses installation challenges by using a locking ring and dynamic rings to simplify the sealing process, ensuring effective and adaptable sealing for devices in water-related engineering, reducing water ingress and device damage.
Patent Information
- Application Number
- CN202422291829.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The sealing operation space of existing water conservancy engineering equipment at the cable hole is small, which causes the sealing ring to easily deviate or fall off, and cannot be effectively sealed, resulting in damage to water vapor entering the interior of the equipment.
The combined structure of the fixing rod, moving ring, locking snap ring and sealing ring is adopted. The locking snap ring passes through the moving ring to achieve the contact between the sealing ring and the cable hole, and the sealing insert block of elastic material and the thrust bearing are used to reduce friction to ensure the sealing effect.
It simplifies operation difficulty, improves the sealing accuracy of cable holes, adapts to cable holes of different thicknesses, and reduces the risk of equipment damage due to water leakage.
Smart Images
Figure CN223109640U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of connectors for water conservancy equipment, and particularly to a cable hole airtight plugging structure. Background Art
[0002] As one of the important means for humans to utilize and control water resources, water conservancy projects develop and utilize water resources while eliminating floods, mainly including multiple project directions such as flood control projects, irrigation and water conservancy projects, hydropower projects, water supply and drainage projects, waterway and port projects, etc.
[0003] In the construction and implementation of water conservancy projects, most equipment occasionally comes into contact with water or is in a humid environment, and some equipment needs to be immersed in water for a long time or intermittently, which poses high requirements and challenges for the airtightness of the equipment. The existing sealing methods usually place a sealing gasket at the interface and make the sealing gasket abut against the equipment wall through the extrusion of the contact end face to complete the sealing process. Usually, two end sleeves with threaded connections are set on both the inside and outside of the joint, and the sleeves are rotated to tighten through the threads between them.
[0004] In view of the above related technologies, during the installation of the sealing ring, due to the overly narrow operating space and the difficulty for the operator to observe the sealing ring, the sealing ring may shift or fall off, resulting in the failure to achieve the ideal sealing effect at the sealing point, and ultimately leading to water vapor entering the equipment and causing equipment damage. Content of the Utility Model
[0005] In order to facilitate the operator to seal the cable hole and improve the sealing accuracy, and reduce equipment damage caused by water leakage at the cable hole, this application provides a cable hole airtight plugging structure.
[0006] This application provides a cable hole airtight plugging structure, adopting the following technical solutions:
[0007] A cable hole airtight plugging structure includes a fixing rod. A channel for passing the cable is provided in the middle of the fixing rod. A cable sealing assembly for fixing the cable is provided on the inner wall of the channel. A fixing assembly is provided at one end of the fixing rod. A moving ring is sleeved on the fixing rod. A locking snap ring is axially provided on the outer side of the fixing rod. The side of the moving ring away from the sealing plate abuts against the locking snap ring. A plurality of locking snap rings are provided along the length direction of the fixing rod. Ring grooves are provided on both the fixing assembly and the moving ring, and sealing rings are provided in the ring grooves.
[0008] By adopting the above technical solution, the operator places the sealing ring in the annular groove, passes the fixing rod through the cable hole, places the moving ring at the cable hole, and pulls out the fixing rod outward. At the same time, the locking snap ring sequentially passes through the inner ring of the moving ring. When the operator tightens the fixing rod, the moving ring, the sealing ring on the fixing component, and both sides of the cable hole are in contact to complete the sealing, effectively simplifying the installation difficulty for the operator. And since there are several locking snap rings, it can seal cable holes of different thicknesses.
[0009] Optionally, the cable sealing assembly includes a sealing plug and a gland. The fixing rod is directly threadedly connected to the gland. A slider is provided on the outer side of the sealing plug, and a chute adapted to the slider is provided on the inner side of the fixing rod. A wire passing hole is formed in the inner side of the sealing plug, and a through hole adapted to the wire passing hole is formed in the gland. The wire passing hole gradually becomes smaller along the length direction, and the sealing plug is made of an elastic material.
[0010] By adopting the above technical solution, when it is necessary to fix the cable to the fixing rod, place the new cable in the wire passing hole, insert the sealing plug into the fixing rod, pass the cable through the gland, rotate the gland on the fixing rod, and press the sealing plug into the fixing rod by the gland. As the wire passing hole gradually becomes smaller, the sealing plug made of elastic material can generate sufficient deformation to clamp the cable, and the gap between the sealing plug and the cable will also become smaller, completing the circumferential sealing of the cable.
[0011] Optionally, mounting grooves are provided on both sides of the gland and the sealing plug close to each other, and thrust bearings are provided in the mounting grooves.
[0012] By adopting the above technical solution, when installing the sealing plug, the thrust bearing rotates with the rotation of the gland, reducing the friction between the sealing plug and the gland, and thus reducing the shear force received by the sealing plug in its circumferential direction. Therefore, the ineffective deformation of the sealing plug is effectively reduced.
[0013] Optionally, the fixing component includes a sealing plate and a fixing plate. The sealing plate abuts against the fixing plate. The fixing plate is fixedly connected to the fixing rod. The sealing plate is sleeved on the outer side of the fixing rod. The annular groove is located on the sealing plate. Both the sealing plate and the moving ring are made of hard rubber material.
[0014] By adopting the above technical solution, by setting the fixing component in a split manner, the operator can replace the sealing ring on the sealing plate separately, and it is convenient to separately manufacture the sealing plate and the fixing plate.
[0015] Optionally, when the sealing ring is located in the annular groove, the area where the inner wall of the annular groove abuts against the sealing ring is larger than the non-abutting area.
[0016] By adopting the above technical solution, when the sealing ring is placed into the annular groove, most of the sealing ring is wrapped by the inner wall of the annular groove, and only a small part leaks out of the end face. After the installation of the sealing ring is completed, it is difficult to fall out of the annular groove, which is convenient for the operator to install and position the seal.
[0017] Optionally, the cable sealing assembly includes a mounting seat, which is arranged at one end of the fixing rod away from the fixing component. The mounting seat and the fixing rod are fixedly connected. The mounting seat is provided with a placement groove, in which an aviation plug is arranged. The inner wall of the placement groove is provided with a spiral groove for filling sealant, and the spiral groove extends along the length direction of the placement groove.
[0018] By adopting the above technical solution, after the operator installs the aviation plug into the placement groove, sealant is poured into the spiral groove for filling to realize the fixation and sealing between the aviation plug and the mounting seat. Through the fixed connection between the mounting seat and the fixing component, the sealing and fixation between the mounting seat and the fixing component are completed.
[0019] In summary, the present application includes at least one of the following beneficial technical effects:
[0020] 1. The operator places the sealing ring in the annular groove, passes the fixing rod through the cable hole, places the moving ring at the cable hole, and pulls out the fixing rod outward. At the same time, the locking snap ring sequentially passes through the inner ring of the moving ring. When the operator tightens the fixing rod, the moving ring, the sealing ring on the fixing component and both sides of the cable hole are in contact to complete the sealing, effectively simplifying the installation difficulty for the operator. And since there are several locking snap rings, the cable holes with different thicknesses can be sealed.
[0021] 2. When it is necessary to fix the cable and the fixing rod, place the new cable in the wire passing hole, insert the sealing plug into the fixing rod, pass the cable through the gland, rotate the gland on the fixing rod, and press the sealing plug into the fixing rod by the gland. As the wire passing hole gradually becomes smaller, the sealing plug made of elastic material can generate sufficient deformation to clamp the cable, and the gap between the sealing plug and the cable will also become smaller, completing the circumferential sealing of the cable. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 is an overall structural schematic diagram of a cable hole airtight plugging structure.
[0023] Figure 2 is an internal cross-sectional schematic diagram of Embodiment 1.
[0024] Figure 3 is an exploded view of Embodiment 1.
[0025] Figure 4 is the overall structure of Embodiment 2.
[0026] Figure 5 It is a schematic internal cross-sectional view of Embodiment 2.
[0027] Description of reference numerals: 1, fixed rod; 11, locking snap ring; 12, moving ring; 121, sealing ring; 13, fixing assembly; 131, sealing plate; 132, fixing protrusion; 2, cable sealing assembly; 21, sealing plug; 211, wire passing hole; 22, gland; 23, thrust bearing; 24, mounting seat; 241, aviation plug; 242, spiral groove. Detailed implementation manners
[0028] The present application will be further described in detail below in conjunction with all the accompanying drawings.
[0029] An embodiment of the present application discloses a cable hole airtight plugging structure.
[0030] Referring to Figures 1 to 3 , a cable hole airtight plugging structure includes a fixed rod 1. A channel for passing a cable is provided in the middle of the fixed rod 1. A cable sealing assembly 2 for fixing the cable is provided on the inner wall of the channel. A fixing assembly 13 is provided at one end of the fixed rod 1. A moving ring 12 is sleeved on the fixed rod 1. A locking snap ring 11 is axially provided on the outer side of the fixed rod 1. The side of the moving ring 12 away from the sealing plate 131 abuts against the locking snap ring 11. A plurality of locking snap rings 11 are provided along the length direction of the fixed rod 1. Ring grooves are provided on both the fixing assembly 13 and the moving ring 12, and a sealing ring 121 is provided in the ring grooves. The operator places the sealing ring 121 in the ring groove, passes the fixed rod 1 through the cable hole, places the moving ring 12 at the cable hole, and pulls out the fixed rod 1 outward. At the same time, the locking snap rings 11 sequentially pass through the inner ring of the moving ring 12. When the operator tightens the fixed rod 1, the sealing rings 121 on the moving ring 12 and the fixing assembly 13 abut against both sides of the cable hole to complete the sealing, effectively simplifying the installation difficulty for the operator. And since a plurality of locking snap rings 11 are provided, airtight sealing of cable holes with different thicknesses can be achieved.
[0031] The cable sealing assembly 2 must satisfy the requirements of sealing between the cable and the cable sealing assembly 2, as well as sealing between the cable sealing assembly 2 and the fixed rod 1. The cable sealing assembly 2 comprises a sealing plug 21 and a gland 22. The fixed rod 1 and the gland 22 are directly threadedly connected. A slider is provided on the outside of the sealing plug 21, and a slide groove adapted to the slider is provided on the inside of the fixed rod 1. A wire hole 211 is provided on the inside of the sealing plug 21, and a through hole adapted to the wire hole 211 is provided on the gland 22. The wire hole 211 gradually becomes smaller along the length direction, and the sealing plug 21 is made of elastic material. When it is necessary to fix the cable to the fixing rod 1, place the new cable in the wire hole 211, insert the sealing plug 21 into the fixing rod 1, pass the cable through the gland 22, rotate the gland 22 on the fixing rod 1, and press the sealing plug 21 into the fixing rod 1 through the gland 22. As the wire hole 211 gradually becomes smaller, the sealing plug 21 made of elastic material can produce enough deformation to clamp the cable, and the gap between the sealing plug 21 and the cable will also become smaller, completing the circumferential sealing of the cable. At the same time, the sealing between the cable sealing assembly 2 and the fixing rod 1 is also completed, and since the inner diameter of the wire hole 211 changes, cables of different thicknesses can be fixed.
[0032] In order to further solve the problem of twisting of the sealing plug 21 when the gland 22 rotates, the circumferential twisting of the sealing plug 21 is avoided as much as possible. The gland 22 and the sealing plug 21 are provided with a mounting groove on one side close to each other, and a thrust bearing 23 is provided in the mounting groove. When the sealing plug 21 is installed, the thrust bearing 23 rotates with the rotation of the gland 22, reducing the friction between the sealing plug 21 and the gland 22, thereby reducing the shear force on the sealing plug 21 in its circumferential direction, thereby effectively reducing the ineffective deformation of the sealing plug 21.
[0033] The fixing assembly 13 includes a sealing plate 131 and a fixing plate. The sealing plate 131 abuts against the fixing plate. The fixing plate is fixedly connected to the fixing rod 1. The sealing plate 131 is sleeved on the outside of the fixing rod 1. The annular groove is located on the sealing plate 131. The sealing plate 131 and the moving ring 12 are both made of hard rubber. By setting the fixing assembly 13 in a split type, the operator can replace the sealing ring 121 on the sealing plate 131 separately, and it is convenient to make the sealing plate 131 and the fixing plate separately.
[0034] In order to simplify the installation process of the sealing ring 121 for the operator. When the sealing ring 121 is located in the ring groove, the area where the inner wall of the ring groove and the sealing ring 121 abut against each other is larger than the area where they do not abut against each other. When the sealing ring 121 is placed in the ring groove, most of the sealing ring 121 is wrapped by the inner wall of the ring groove, and only a small part leaks out of the end face. After the sealing ring 121 is installed, it is difficult for it to fall out of the ring groove, so that the operator can install and position the seal easily.
[0035] Embodiment 2:
[0036] Reference Figure 4 And Figure 5 。The biggest difference between this embodiment and Embodiment 1 lies in the structure, use and installation of the cable sealing assembly 2. The cable sealing assembly 2 includes a mounting seat 24, which is arranged at one end of the fixing rod 1 away from the fixing assembly 13. The mounting seat 24 is fixedly connected to the fixing rod 1. The mounting seat 24 is provided with a placement groove, in which an aviation plug 241 is arranged. The inner wall of the placement groove is provided with a spiral groove 242 for filling sealant, and the spiral groove 242 extends along the length direction of the placement groove. After the operator installs the aviation plug 241 into the placement groove, sealant is poured into the spiral groove 242 for filling to achieve the fixation and sealing between the aviation plug 241 and the mounting seat 24. By fixedly connecting the mounting seat 24 with the fixing assembly 13, the sealing and fixation between the mounting seat 24 and the fixing assembly 13 are completed. In this embodiment, the fixed connection between the mounting seat 24 and the fixing rod 1 is achieved by welding for connection and fixation.
[0037] The above are all preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of this application shall be covered within the protection scope of this application.
Claims
1. A cable hole airtight plugging structure, including a fixed rod (1), characterized in that: A channel for passing cables is provided in the middle of the fixed rod (1). A cable sealing assembly (2) for fixing the cables is provided on the inner wall of the channel. A fixing assembly (13) is provided at one end of the fixed rod (1). A moving ring (12) is sleeved on the fixed rod (1). A locking snap ring (11) is axially provided on the outer side of the fixed rod (1). One side of the moving ring (12) away from the sealing plate (131) abuts against the locking snap ring (11). A plurality of locking snap rings (11) are provided along the length direction of the fixed rod (1). Both the fixing assembly (13) and the moving ring (12) are provided with annular grooves, and a sealing ring (121) is provided in the annular grooves.
2. The cable hole airtight plugging structure according to claim 1, characterized in that: The cable sealing assembly (2) includes a sealing plug (21) and a gland (22). The fixed rod (1) is directly threadedly connected to the gland (22). A slider is provided on the outer side of the sealing plug (21), and a chute adapted to the slider is provided on the inner side of the fixed rod (1). A wire passing hole (211) is formed in the inner side of the sealing plug (21). A through hole adapted to the wire passing hole (211) is formed in the gland (22). The wire passing hole (211) gradually becomes smaller along the length direction. The sealing plug (21) is made of an elastic material.
3. The cable hole airtight plugging structure according to claim 2, characterized in that: Mounting grooves are provided on the sides of the gland (22) and the sealing plug (21) close to each other, and thrust bearings (23) are provided in the mounting grooves.
4. A cable hole airtight plugging structure according to claim 1, characterized in that: The fixing assembly (13) includes a sealing plate (131) and a fixing plate. The sealing plate (131) abuts against the fixing plate. The fixing plate is fixedly connected to the fixed rod (1). The sealing plate (131) is sleeved on the outer side of the fixed rod (1). The annular groove is located on the sealing plate (131). Both the sealing plate (131) and the moving ring (12) are made of hard rubber material.
5. The cable hole airtight plugging structure according to claim 1, characterized in that: When the sealing ring (121) is located in the annular groove, the area of the inner wall of the annular groove in contact with the sealing ring (121) is larger than the non-contact area.
6. The hermetic plugging structure for cable holes according to claim 1, wherein: The cable sealing assembly (2) includes a mounting seat (24). The mounting seat (24) is provided at the end of the fixed rod (1) away from the fixing assembly (13). The mounting seat (24) is fixedly connected to the fixed rod (1). The mounting seat (24) is provided with a placement groove. An aviation plug (241) is provided in the placement groove. A spiral groove (242) for filling sealant is provided on the inner wall of the placement groove. The spiral groove (242) extends along the length direction of the placement groove.