A plug-in cable sealing device

Abstract

The application discloses an insertion type cable sealing device and relates to the technical field of power cables, which comprises a main body, a protection plate is connected to the end of the main body, a protection assembly is fixedly installed on the inner wall of the main body, and the protection assembly can share the tensile force borne by the cable. The insertion type cable sealing device can effectively disperse external tension, prevent the cable from being excessively stretched or torn, avoid the cable breakage or damage caused by excessive pulling during installation and use, reduce the damage caused by the stretching of the cable during cable correction after the cable assembly is completed, and form more reliable and durable sealing through accurate insertion and locking mechanisms, ensure the close combination of the joint part, prevent moisture, dust and corrosive substances from entering, and improve the overall protection level of the cable.

Description

Technical Field

[0001] This invention relates to power cable technology, and more specifically to an insert-type cable sealing device. Background Technology

[0002] The performance of a cable's insulation and buffer layers plays a decisive role in its overall performance. However, during cable transportation, on-site installation, and maintenance, water ingress and moisture absorption often occur due to inadequate sealing, especially in southern Chinese cities where the water table is low and rainfall is frequent throughout the year. Because the damage caused by water ingress is insidious, it may not cause breakdown faults in the short term. However, under the long-term influence of the electric field, water trees and electrical trees can damage the insulation layer. Water trees are difficult to repair, often requiring replacement of the entire cable section, leading to significant economic losses and serious social impacts.

[0003] Chinese invention patent CN118074054B discloses a power cable sealing device. This device involves placing a sealing sleeve over the first section of cable and then placing a loose clamping assembly on both sides of the outer surface of the sealing sleeve, exposing the connector head of the cable connector. The two sections of cable are then joined together through the cable connector. The sealing sleeve is then moved so that it completely encloses the cable connector and its two sides, sealing and protecting the position of the cable connector. Because the inner diameter of the sealing sleeve is slightly larger, the clamping assembly on both sides of the outer surface of the sealing sleeve is then tightened, ensuring that both sides of the sealing sleeve are tightly sealed. This prevents external moisture from entering the sealing sleeve and does not affect the use of the cable connector.

[0004] When existing equipment is used, it needs to be sealed when laid in humid and corrosive environments such as underground or underwater, which in turn requires sealing the cable. However, after the cable is installed, the cable needs to be straightened again, which makes the cable prone to misalignment when subjected to external tension. This can lead to cable damage or performance degradation due to excessive stretching or bending. Therefore, an insert-type cable sealing device has been developed. Summary of the Invention

[0005] The purpose of this invention is to provide an insertable cable sealing device to overcome the above-mentioned shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an insertable cable sealing device, comprising a main body, wherein a protective plate is snapped onto the end of the main body, and a protective component is fixedly installed on the inner wall of the main body, wherein the protective component shares the tensile force borne by the cable;

[0007] Positioning components, which are assembled at both ends of the protective component, are used to lock the cable in place.

[0008] The protective component includes a fixing plate fixedly connected to the main body, and guide grooves are symmetrically provided at the ends of the fixing plate;

[0009] A limiting shaft is rotatably installed at the middle position of the end of the fixed plate. A rotating block is fixedly installed on the outer surface of the limiting shaft. A drive rod is symmetrically rotatably installed at the end of the rotating block, and a drive block is rotatably installed at the end of the drive rod away from the rotating block.

[0010] The outer surface of the drive block is slidably connected to the inner wall of the guide groove, and a connecting pipe is fixedly installed between the two drive blocks.

[0011] As a further optimization of the present invention, a support plate is snapped onto the outer surface of the limiting shaft, and a ratchet is fixedly installed at the end of the limiting shaft.

[0012] As a further optimization of the present invention, an extension plate is fixedly installed on one side of the fixed plate, a movable groove is provided on the inner wall of the extension plate, a movable block is slidably installed on the inner wall of the movable groove, a pressing plate is fixedly installed at the end of the movable block, and the end of the pressing plate penetrates and extends to the outside of the extension plate.

[0013] As a further optimization of the present invention, positioning rods are rotatably mounted at both ends of the movable block, and the outer surface of the end of the positioning rod meshes with the outer surface of the ratchet gear.

[0014] As a further optimization of the present invention, a connecting block is rotatably installed on one side of each of the two positioning rods, and a first elastic element is fixedly installed between the two connecting blocks.

[0015] As a further optimization of the present invention, the positioning component includes a sealing cylinder that engages with the connecting pipe, a ring is slidably mounted on the outer surface of the sealing cylinder, a protective cylinder is mounted at the end of the ring, and the outer surface of the protective cylinder is slidably connected to the inner wall of the main body.

[0016] As a further optimization of the present invention, the outer surface of the sealing cylinder is provided with multiple sets of through holes, and the multiple sets of through holes are evenly distributed on the outer surface of the sealing cylinder;

[0017] An adjusting block is slidably installed on the inner wall of the through hole, and the end of the adjusting block is fixedly connected to the inner wall of the protective cylinder.

[0018] As a further optimization of the present invention, the end of the adjusting block penetrates and extends into the inner cavity of the sealing cylinder, and a positioning plate is fixedly installed at the end of the adjusting block, the outer surface of the positioning plate being slidably connected to the inner wall of the sealing cylinder.

[0019] As a further optimization of the present invention, multiple sets of protective rods are fixedly installed at the end of the positioning plate, and the multiple sets of protective rods are evenly distributed at the end of the positioning plate. At the same time, the ends of the protective rods expand outward in an inclined shape; a groove is provided on one side of the protective rod.

[0020] As a further optimization of the present invention, a support plate is fixedly installed at the end of the sealing cylinder, and a second elastic member is fixedly installed at the end of the support plate. The end of the second elastic member away from the support plate is fixedly connected to the end of the positioning plate.

[0021] Compared with the prior art, the insertable cable sealing device provided by the present invention has the following beneficial effects: the protective component can effectively disperse external tension, prevent the cable from being excessively stretched or torn, and avoid cable breakage or damage caused by excessive pulling during installation and use. At the same time, it reduces the damage caused by cable stretching during cable straightening after cable assembly is completed.

[0022] The positioning components can form a more reliable and durable seal through a precise plugging and locking mechanism, ensuring a tight fit at the joint and preventing the ingress of moisture, dust, and corrosive substances, thereby improving the overall protection level of the cable.

[0023] With its plug-in locking and tensile-resistant multi-protection design, it not only seals and protects the joints, but also effectively reduces cable damage in tensile and vibration environments. It also helps reduce cable wear caused by friction or bending, extending the cable's service life. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0026] Figure 2 A cross-sectional view of the overall internal structure provided in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the protective component structure provided in an embodiment of the present invention;

[0028] Figure 4 This is a first exploded view of the protective component structure provided in an embodiment of the present invention;

[0029] Figure 5This is a second exploded view of the protective component structure provided in an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the positioning component structure provided in an embodiment of the present invention;

[0031] Figure 7 This is a cross-sectional view of the internal structure of the positioning component provided in an embodiment of the present invention;

[0032] Figure 8 An exploded view of the positioning component structure provided in an embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Main body; 2. Protective components; 3. Positioning components; 11. Protective plate; 21. Fixing plate; 211. Guide groove; 22. Extension plate; 221. Movable groove; 23. Limiting shaft; 24. Rotating block; 241. Support plate; 25. Drive rod; 251. Drive block; 252. Connecting pipe; 26. Ratchet; 27. Movable block; 271. Pressing plate; 28. Positioning rod; 29. ​​Connecting block; 291. First elastic element; 31. Protective cylinder; 32. Ring; 33. Sealing cylinder; 331. Support plate; 34. Through hole; 35. Adjusting block; 36. Positioning plate; 37. Protective rod; 371. Groove; 38. Second elastic element. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] Example: Please refer to Figures 1-8 An insertable cable sealing device includes a main body 1, with a protective plate 11 snapped onto the end of the main body 1, and a protective component 2 fixedly installed on the inner wall of the main body 1, which shares the tensile force borne by the cable.

[0038] In this design, the inner wall of the protective plate 11 is provided with components such as rubber that have an insulating and sealing effect. After the protective plate 11 is attached to the main body 1, it is isolated from the outside. At the same time, holes are provided at both ends of the main body 1, and the inner walls of the holes are provided with components such as rubber that have a sealing effect.

[0039] Furthermore, the protective component 2 includes a fixing plate 21 fixedly connected to the main body 1, and guide grooves 211 are symmetrically provided at the ends of the fixing plate 21.

[0040] In this embodiment, the fixing plate 21 is located in the middle of the inner wall of the main body 1, and the driving block 251 that is slidably disposed on its inner wall is limited by two guide grooves 211, while providing room for the tensile force borne by the cable.

[0041] A limiting shaft 23 is rotatably installed at the middle position of the end of the fixed plate 21. A rotating block 24 is fixedly installed on the outer surface of the limiting shaft 23. A drive rod 25 is symmetrically rotatably installed at the end of the rotating block 24, and a drive block 251 is rotatably installed at the end of the drive rod 25 away from the rotating block 24.

[0042] Specifically, the limiting shaft 23 is composed of a cylinder, a rod and a spring. The inner wall of the cylinder is slidably connected to the outer surface of the rod. At the same time, the spring is set on the inner wall of the cylinder. One end of the spring is fixedly connected to the inner wall of the cylinder, and the other end is connected to the end of the rod.

[0043] The rotating block 24 is fixedly installed on the cylinder. When the driving block 251 is moved by force, it synchronously drives the driving rod 25, which is rotatably installed at its end, to move. Since the end of the driving rod 25 is rotatably connected to the end of the rotating block 24, the rotating block 24 is driven to rotate the limiting shaft 23 as a whole when the driving rod 25 moves.

[0044] The end of the rotating block 24 is provided with a buffer, which is an elastic component such as a spring. The buffer limits the rotating block 24 and buffers the force on the rotating block 24.

[0045] Furthermore, the outer surface of the drive block 251 is slidably connected to the inner wall of the guide groove 211, and a connecting pipe 252 is fixedly installed between the two drive blocks 251.

[0046] Specifically, the connector 252 is made of insulating rubber and is flexible in shape. It contains transmission cables for connecting the cables at both ends.

[0047] When the connecting pipe 252 is subjected to force, the drive block 251 distributes the force to the rotating block 24, and the buffer on the rotating block 24 relieves the force, thereby reducing the effect of tension on the cable.

[0048] Furthermore, a support plate 241 is snapped onto the outer surface of the limiting shaft 23, and a ratchet 26 is fixedly installed at the end of the limiting shaft 23.

[0049] Specifically, a telescopic rod is provided at the end of the ratchet 26. The ratchet 26 is locked by the telescopic rod, so that the limiting shaft 23 is in a stable state. When the telescopic rod is stretched, the ratchet 26 and the support plate 241 are lifted upward by the limiting shaft 23 until the ratchet 26 is separated from the positioning rod 28, so that the positioning rod 28 is engaged with the support plate 241. The outer surface of the support plate 241 is arc-shaped, which facilitates the ratchet 26 to engage with the ratchet 26 again.

[0050] Furthermore, an extension plate 22 is fixedly installed on one side of the fixed plate 21. An movable groove 221 is provided on the inner wall of the extension plate 22. A movable block 27 is slidably installed on the inner wall of the movable groove 221. A pressing plate 271 is fixedly installed at the end of the movable block 27. At the same time, the end of the pressing plate 271 penetrates and extends to the outside of the extension plate 22.

[0051] Specifically, the position of the movable block 27 is adjusted by pressing the plate 271. At the same time, the outer surface of the plate 271 is provided with clamps and other components that have a fixing function to lock the adjusted plate 271, thereby fixing the movable block 27.

[0052] Furthermore, positioning rods 28 are rotatably mounted on both ends of the movable block 27, and the outer surface of the end of the positioning rod 28 meshes with the outer surface of the ratchet 26. A connecting block 29 is rotatably mounted on one side of each of the two positioning rods 28, and a first elastic element 291 is fixedly mounted between the two connecting blocks 29.

[0053] Specifically, the ratchet 26 is locked by rotating the two positioning rods 28 on the movable block 27, and is further restricted by the first elastic element 291 disposed between the two positioning rods 28, allowing the ratchet 26 to rotate in one direction. The first elastic element 291 is a spring or other elastic component.

[0054] The protective component 2 distributes the tension to the buffer, thereby reducing the degree of cable stretching and ensuring that the cable connection is always in a stable state. Furthermore, the cable is connected by the connector 252, thereby preventing damage to the cable due to excessive bending or excessive tension during stretching.

[0055] Furthermore, the positioning component 3, which is assembled at both ends of the protective component 2, is used to plug and lock the cable; the positioning component 3 includes a sealing cylinder 33 that engages with the connecting pipe 252, a ring 32 is slidably mounted on the outer surface of the sealing cylinder 33, and a protective cylinder 31 is mounted at the end of the ring 32, with the outer surface of the protective cylinder 31 slidably connected to the inner wall of the main body 1.

[0056] In this embodiment, the end of the sealing cylinder 33 is connected to the end of the connecting pipe 252 by a fastener or other fixing component. At the same time, the outer surface of the protective cylinder 31 is slidably connected to the inner wall of the hole on the main body 1. Both the inner wall of the hole and the outer surface of the protective cylinder 31 are provided with rubber or other sealing components, thereby isolating the inside of the main body 1 from the outside.

[0057] The inner wall of the ring 32 and the outer surface of the sealing cylinder 33 are provided with rubber or other sealing components, thereby ensuring overall sealing when the ring 32 moves.

[0058] Furthermore, multiple sets of through holes 34 are provided on the outer surface of the sealing cylinder 33, and the multiple sets of through holes 34 are evenly distributed on the outer surface of the sealing cylinder 33; an adjusting block 35 is slidably installed on the inner wall of the through hole 34, and the end of the adjusting block 35 is fixedly connected to the inner wall of the protective cylinder 31.

[0059] Specifically, since the end of the adjusting block 35 is fixedly connected to the inner wall of the protective cylinder 31, when the protective cylinder 31 moves, the adjusting block 35 fixedly installed on its inner wall moves synchronously. The adjusting block 35 moves along the inner wall of the through hole 34, reducing the possibility of the adjusting block 35 rotating.

[0060] Furthermore, the end of the adjusting block 35 extends through and into the inner cavity of the sealing cylinder 33, and a positioning plate 36 is fixedly installed on the end of the adjusting block 35. The outer surface of the positioning plate 36 is slidably connected to the inner wall of the sealing cylinder 33.

[0061] Specifically, when the adjusting block 35 moves, it synchronously drives the positioning plate 36 fixedly installed at its end to move. The outer surface of the positioning plate 36 is slidably connected to the inner wall of the sealing cylinder 33, thereby causing the positioning plate 36 to move along the inner wall of the sealing cylinder 33.

[0062] Furthermore, multiple sets of protective rods 37 are fixedly installed at the end of the positioning plate 36, and the multiple sets of protective rods 37 are evenly distributed at the end of the positioning plate 36. At the same time, the ends of the protective rods 37 expand outward in an inclined manner; a groove 371 is provided on one side of the protective rod 37.

[0063] Specifically, when the positioning plate 36 moves, it synchronously drives the protective rod 37 fixedly installed at its end to move as well. The inner wall of the sealing cylinder 33 extends inward at an angle, so that when the protective rod 37 moves, the end of the protective rod 37 fits against the inner wall of the sealing cylinder 33, thereby squeezing the end of the protective rod 37 towards the center. This makes the groove 371 on one side of it annular, and the inner wall of the groove 371 is provided with sealing components such as rubber rings, which work together with the protective rod 37 to lock and seal the outer surface of the cable.

[0064] Furthermore, a support plate 331 is fixedly installed at the end of the sealing cylinder 33, and a second elastic member 38 is fixedly installed at the end of the support plate 331. The end of the second elastic member 38 away from the support plate 331 is fixedly connected to the end of the positioning plate 36.

[0065] Specifically, the second elastic element 38 is a spring or other elastic component. The second elastic element 38 supports the positioning plate 36, causing the end of the protective rod 37 to synchronously move towards the center when no force is applied. When the positioning plate 36 is subjected to force and moves, the end of the protective rod 37 separates from the inner wall of the sealing cylinder 33, causing the end of the protective rod 37 to expand, facilitating cable insertion and removal. This precise insertion and locking mechanism enables a more reliable and durable seal.

[0066] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An insert-type cable sealing device, characterized in that, Includes a main body (1), with a protective plate (11) snapped onto the end of the main body (1), and a protective component (2) fixedly installed on the inner wall of the main body (1), which shares the tensile force borne by the cable. Positioning component (3), which is assembled at both ends of the protective component (2), is used to lock the cable in place; The protective component (2) includes a fixing plate (21) fixedly connected to the main body (1), and the ends of the fixing plate (21) are symmetrically provided with guide grooves (211). A limiting shaft (23) is rotatably installed at the middle position of the end of the fixed plate (21). A rotating block (24) is fixedly installed on the outer surface of the limiting shaft (23). A drive rod (25) is symmetrically rotatably installed at the end of the rotating block (24), and a drive block (251) is rotatably installed at the end of the drive rod (25) away from the rotating block (24). The outer surface of the drive block (251) is slidably connected to the inner wall of the guide groove (211), and a connecting pipe (252) is fixedly installed between the two drive blocks (251). The positioning component (3) includes a sealing cylinder (33) that engages with the connecting pipe (252). A ring (32) is slidably mounted on the outer surface of the sealing cylinder (33). A protective cylinder (31) is mounted at the end of the ring (32). The outer surface of the protective cylinder (31) is slidably connected to the inner wall of the main body (1). The outer surface of the sealing cylinder (33) has multiple sets of through holes (34), and the multiple sets of through holes (34) are evenly distributed on the outer surface of the sealing cylinder (33); An adjusting block (35) is slidably installed on the inner wall of the through hole (34), and the end of the adjusting block (35) is fixedly connected to the inner wall of the protective cylinder (31). The end of the adjusting block (35) extends through and into the inner cavity of the sealing cylinder (33), and a positioning plate (36) is fixedly installed on the end of the adjusting block (35). The outer surface of the positioning plate (36) is slidably connected to the inner wall of the sealing cylinder (33). Multiple sets of protective rods (37) are fixedly installed at the end of the positioning plate (36), and the multiple sets of protective rods (37) are evenly distributed at the end of the positioning plate (36); The end of the sealing cylinder (33) is fixedly installed with a support plate (331), and the end of the support plate (331) is fixedly installed with a second elastic element (38). The end of the second elastic element (38) away from the support plate (331) is fixedly connected to the end of the positioning plate (36).

2. The insertion-type cable sealing device according to claim 1, characterized in that, The outer surface of the limiting shaft (23) is fitted with a support plate (241), and a ratchet gear (26) is fixedly installed at the end of the limiting shaft (23).

3. The insertion-type cable sealing device according to claim 2, characterized in that, An extension plate (22) is fixedly installed on one side of the fixed plate (21). An movable groove (221) is provided on the inner wall of the extension plate (22). A movable block (27) is slidably installed on the inner wall of the movable groove (221). A pressing plate (271) is fixedly installed at the end of the movable block (27). At the same time, the end of the pressing plate (271) penetrates and extends to the outside of the extension plate (22).

4. The insertion-type cable sealing device according to claim 3, characterized in that, Both ends of the movable block (27) are rotatably mounted with positioning rods (28), and the outer surface of the end of the positioning rod (28) meshes with the outer surface of the ratchet (26).

5. The insertion-type cable sealing device according to claim 4, characterized in that, A connecting block (29) is rotatably mounted on one side of each of the two positioning rods (28), and a first elastic element (291) is fixedly mounted between the two connecting blocks (29).

6. The insertion-type cable sealing device according to claim 1, characterized in that, Meanwhile, the end of the protective rod (37) is inclined and expands outward; a groove (371) is provided on one side of the protective rod (37).

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