A waterproof cable joint assembly

Abstract

The utility model discloses a waterproof cable joint assembly, including the connection shell no.

Description

Technical Field

[0001] This utility model relates to the field of cable joint technology, specifically a waterproof cable joint assembly. Background Technology

[0002] Cable joints, also known as cable heads, are used to connect cable segments into a continuous line after the cable is laid. These connection points are called cable joints. Cable joints in the middle of the cable line are called intermediate joints, while those at both ends of the line are called terminal joints. Cable joints are used to lock and fix the incoming and outgoing cables, and serve to prevent water, dust, and vibration. In the prior art, patent CN 222052178 U discloses a waterproof cable joint, including a first insertion section, a second insertion section, and a connecting section. The inner side of the end of the connecting section has a heat-shrinkable ring, and the outer side of the end of the connecting section is threaded with a sealing sleeve. One side of the heat-shrinkable ring is provided with an annular skirt, which is located at the gap between the connecting section and the sealing sleeve and is squeezed by both. When the heat-shrinkable ring is heated, its non-skirted part shrinks inward. The inner side of the sealing sleeve is also provided with several sealing rings that fit against the outer wall of the cable. This solution involves setting a connecting section at the end of the plug section, with a heat-shrink ring embedded inside the connecting section. The sealing sleeve and the connecting section work together to clamp the skirt of the heat-shrink ring, while simultaneously baking the heat-shrink ring to make it adhere to the cable surface. This achieves a sealing effect with the cable's outer wall while also ensuring a seal with the external connecting section, thus expanding the range of cable outer wall diameter adaptability. When this device performs waterproof sealing at the connection point, it uses a sealing ring for waterproof treatment. However, the installation gap of the sealing ring inside the device remains unchanged. Over time, the sealing ring is prone to hardening, leading to a reduction in its volume and consequently a decrease in its sealing effect at the gaps. Therefore, we propose a waterproof cable joint assembly. Utility Model Content

[0003] The technical problem this invention aims to solve is to overcome existing defects and provide a waterproof cable joint assembly. This device uses an annular rubber airbag to seal and waterproof the connection gaps of the cable joint. The air pressure of the annular rubber airbag is adjusted by a transmission element, causing the airbag to expand due to its internal air pressure. This adaptively fills and seals the connection gaps of the cable joint, preventing the waterproof effect from weakening due to the shrinkage of the sealed area as it hardens. Furthermore, the sealing and waterproofing effect of the device can be adjusted according to changes in the air pressure of the annular rubber airbag, effectively solving the problems in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a waterproof cable connector assembly, including a first connecting shell, a second connecting shell installed on the right end of the first connecting shell, a plug tube provided on the left end of the interior of the second connecting shell, the right end of the interior of the first connecting shell being plugged into the left end of the plug tube, cables being installed inside both the first and second connecting shells, and a protective mechanism.

[0005] The protective mechanism includes a first annular rubber airbag, a second annular rubber airbag, and an adjustment component. The first annular rubber airbag is placed in an annular groove 1 opened in the inner wall of the first connecting shell. The second annular rubber airbag is placed in an annular groove 2 opened inside both the first and second connecting shells. An adjustment component is provided between the first and second connecting shells. The adjustment component is installed in conjunction with the first and second annular rubber airbags respectively. This device seals and waterproofs the connection gaps of the cable joint through the annular rubber airbags. The air pressure intensity of the annular rubber airbags is adjusted by the transmission element, so that the annular rubber airbags expand by their own internal air pressure, thereby adaptively filling and sealing the connection gaps of the cable joint for waterproofing. This avoids the waterproofing effect weakening due to the volume reduction of the sealing and waterproofing parts as they harden. Moreover, the sealing and waterproofing effect of the device can be adjusted according to the change in the air pressure intensity of the annular rubber airbags.

[0006] Furthermore, threaded grooves are provided on the opposite outer ends of both connecting shell one and connecting shell two, and fixed shells are threadedly connected to the threaded grooves. The fixed shells in the waterproof cable connector assembly are fixed to the corresponding connecting shell one or connecting shell two through the threaded connection.

[0007] Furthermore, both the inner opposite ends of the connecting shell one and the connecting shell two are provided with annular cone seats, and the middle part of the fixed shell is provided with a rubber sealing sleeve. The rubber sealing sleeve is installed in conjunction with the adjacent annular cone seat to fix the cable in the waterproof cable joint assembly by compression.

[0008] Furthermore, the outer edge of the rubber sealing sleeve near the adjacent annular cone seat is an annular inclined surface, which allows the annular inclined surface of the rubber sealing sleeve in the waterproof cable joint assembly to be squeezed towards its own center under pressure.

[0009] Furthermore, a fixing ring is slidably connected in the annular groove three opened at the outer left end of the second connecting shell, and a threaded groove two is opened at the outer right end of the first connecting shell. The inside of the fixing ring is threadedly connected to the threaded groove two, thereby connecting and fixing the second connecting shell and the first connecting shell in the waterproof cable connector assembly.

[0010] Furthermore, the adjustment assembly includes an annular shell, an annular rubber airbag three, a branch pipe, and a straight connecting pipe. The annular shell is respectively disposed on the outside of connecting shell one and connecting shell two. An annular rubber airbag three is placed inside the annular shell. A branch pipe is provided in the wall of connecting shell one. Annular rubber airbag two and annular rubber airbag one on the left side are connected to annular rubber airbag three on the left side through the branch pipe. A straight connecting pipe is provided in the wall of connecting shell two. Annular rubber airbag two on the right side is connected to annular rubber airbag three on the right side through the straight connecting pipe. The annular rubber airbags provide waterproof sealing for the gaps at the connection of the waterproof cable joint assembly.

[0011] Furthermore, the adjustment assembly also includes an annular pressure plate and a movable ring. The annular pressure plate is threadedly connected to the threaded grooves three opened on the outer side of the connecting shell one and the connecting shell two, respectively. Movable rings are provided on the opposite inner ends of the two annular pressure plates. The movable rings are installed in conjunction with the adjacent annular rubber airbags three. The air pressure intensity of the annular rubber airbags in the waterproof cable connector assembly is adjusted by the change in volume.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This waterproof cable connector assembly has the following advantages:

[0013] When using the waterproof cable joint assembly, the device seals and waterproofs the connection gaps of the cable joint using an annular rubber airbag. By adjusting the assembly, the air pressure of the annular rubber airbag can be adjusted according to the degree of volume change, allowing the annular rubber airbag to expand under its own internal air pressure. This adaptively fills and seals the connection gaps of the cable joint, preventing the waterproof effect from weakening due to the volume reduction of the sealed waterproof area as it hardens. The sealing and waterproofing effect of the device can be adjusted according to the changes in the air pressure of the annular rubber airbag. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model in its disassembled state;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0018] Figure 5 This is an enlarged structural diagram of section B of the present invention.

[0019] In the diagram: 1 Connecting shell one, 2 Connecting shell two, 3 Fixed shell, 4 Annular cone seat, 5 Rubber sealing sleeve, 6 Insert pipe, 7 Fixed ring, 8 Protective mechanism, 81 Annular rubber airbag one, 82 Annular rubber airbag two, 83 Adjustment component, 831 Annular shell, 832 Annular rubber airbag three, 833 Annular pressure plate, 834 Moving ring, 835 Branch pipe, 836 Straight connection pipe, 9 Cable. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5This embodiment provides a technical solution: a waterproof cable connector assembly, including a connecting shell 1, a connecting shell 2 installed on the right end of the connecting shell 1, a plug tube 6 provided on the left end of the interior of the connecting shell 2, the right end of the interior of the connecting shell 1 being plugged into the left end of the plug tube 6, a cable 9 installed inside both the connecting shell 1 and the connecting shell 2, threaded grooves 1 being provided on the opposite outer ends of the connecting shell 1 and the connecting shell 2, and a fixing shell 3 threadedly connected to each threaded groove 1, and an annular cone seat 4 provided on the opposite inner ends of the connecting shell 1 and the connecting shell 2, with the fixing shell 3 in the middle. Each component is equipped with a rubber sealing sleeve 5, which is installed in conjunction with the adjacent annular cone seat 4. The outer edge of the rubber sealing sleeve 5 closest to the adjacent annular cone seat 4 is an annular bevel. A fixing ring 7 is slidably connected in the annular groove 3 opened at the outer left end of the connecting shell 2. A threaded groove 2 is opened at the outer right end of the connecting shell 1. The inside of the fixing ring 7 is threadedly connected to the threaded groove 2. When using the waterproof cable connector assembly, first, the connecting end of a cable is passed through the inner hole of the left fixing shell 3 and the connecting shell 1 from left to right. Then, the worker moves the left fixing shell 3 along... The threaded groove on the connecting shell 1 rotates, causing the left fixing shell 3 to continuously move closer to the connecting shell 1. During this process, the left fixing shell 3 drives the left rubber sealing sleeve 5 to move towards the left annular cone seat 4. The left rubber sealing sleeve 5, through its own annular inclined surface, presses against the conical surface of the left annular cone seat 4. Under pressure, the rubber sealing sleeve 5 continuously contracts towards its center. Applying pressure to the rubber sealing sleeve 5 increases the contact resistance between the inner side of the rubber sealing sleeve 5 and the outer side of the cable, thereby fixing the cable to the left fixing shell 3, thus achieving… The cable is now fixed to the connecting shell 1. Then, another cable is passed from right to left through the right-side fixing shell 3 and connecting shell 2 and fixed using the same principle. Then, the workers align the connecting shell 2 and connecting shell 1 horizontally and bring them together so that the plug 6 is inserted into the interior of the connecting shell 1. Then, the workers move the fixing ring 7 so that it moves along the annular groove towards the connecting shell 1. At the same time, the workers rotate the fixing ring 7 so that it is threadedly connected to the threaded groove 2 on the connecting shell 1, thereby realizing the connection and fixation between the connecting shell 2 and the connecting shell 1. It also includes a protective mechanism 8.

[0022] Protective mechanism 8 includes annular rubber airbag 1 81, annular rubber airbag 2 82, and adjusting component 83. Annular rubber airbag 1 81 is placed in an annular groove 1 opened on the inner wall of connecting shell 1. Annular rubber airbag 2 82 is placed in annular groove 2 opened inside both connecting shell 1 and connecting shell 2. Adjusting component 83 is provided between connecting shell 1 and connecting shell 2. Adjusting component 83 is installed in conjunction with annular rubber airbag 1 81 and annular rubber airbag 2 82. Adjusting component 83 includes annular shell 831, annular rubber airbag 3 832, branch pipe 835, and straight connecting pipe 836. Annular shell 831 is respectively located on the outer side of connecting shell 1 and connecting shell 2. Annular rubber airbag 2 82 is placed inside each annular shell 831. Airbag 3 832, with a branch pipe 835 inside the wall of connecting shell 1, connects the left annular rubber airbag 2 82 and annular rubber airbag 1 81 to the left annular rubber airbag 3 832 through the branch pipe 835. A straight connecting pipe 836 is provided inside the wall of connecting shell 2 2, connecting the right annular rubber airbag 2 82 to the right annular rubber airbag 3 832 through the straight connecting pipe 836. Adjustment assembly 83 also includes annular pressure plates 833 and moving rings 834. The annular pressure plates 833 are threaded into threaded grooves 3 on the outer sides of connecting shell 1 and connecting shell 2 2, respectively. Moving rings 834 are provided on the opposite inner ends of the two annular pressure plates 833, and each moving ring 834 is fitted with an adjacent annular rubber airbag 3 832. The operator rotates the moving ring 834 to move it towards the transverse center of the device through the threaded connection with the corresponding threaded groove. The moving ring 834 drives the corresponding annular pressure plate 833 to move synchronously. The annular pressure plate 833 moves along the outer arc surface of the corresponding connecting shell 1 or connecting shell 2 and the inner arc wall of the corresponding annular shell 831 into the adjacent annular shell 831. During the movement of the annular pressure plate 833, it cooperates with the corresponding annular shell 831, thereby squeezing the annular rubber airbag 3 832 inside the annular shell 831. The annular rubber airbag 3 832 is compressed, its volume decreases and its internal pressure increases, and then through the branch pipe 835 or the straight connecting pipe 836, the annular rubber airbag 1 81 and the annular rubber airbag 2 82 are compressed. As the air pressure increases, the internal air pressure of the second annular rubber airbag 82 increases, causing it to expand and fill the corresponding annular groove. This expansion of the second annular rubber airbag 82 fills the gap between the second annular groove and the adjacent cable 9, thus achieving a waterproof seal between the connecting shell 1 or connecting shell 2 and the cable 9. Simultaneously, the first annular rubber airbag 81 fills the contact gap between the first annular groove and the insertion pipe 6 using the same principle, thus sealing the connection gap between connecting shell 1 and connecting shell 2. During operation, rotating the moving ring 834 moves the annular pressure plate 833, which adjusts the volume of the corresponding third annular rubber airbag 832.Therefore, by adjusting the expansion degree caused by the increased air pressure inside the annular rubber airbags 82 and 81, the sealing and waterproofing strength of the corresponding sealing and waterproofing parts of the annular rubber airbags 82 and 81 can be adjusted according to the needs. This device seals and waterproofs the connection gaps of cable joints using annular rubber airbags. The air pressure of the annular rubber airbags is adjusted by a transmission element, causing the airbags to expand due to their internal air pressure, thus adaptively filling and sealing the connection gaps of the cable joints. This prevents the waterproofing effect from weakening due to the shrinkage of the sealing and waterproofing parts as they harden. Furthermore, the sealing and waterproofing effect of the device can be adjusted according to changes in the air pressure of the annular rubber airbags.

[0023] The working principle of the waterproof cable connector assembly provided by this utility model is as follows: When using the waterproof cable connector assembly, firstly, the connecting end of a cable is passed through the inner hole of the left fixed shell 3 and the connecting shell 1 from left to right. Then, the operator rotates the left fixed shell 3 along the threaded groove on the connecting shell 1, so that the left fixed shell 3 continuously moves closer to the connecting shell 1. During this process, the left fixed shell 3 drives the left rubber sealing sleeve 5 to move towards the left annular cone seat 4. The left rubber sealing sleeve 5 makes contact with the cone surface of the left annular cone seat 4 through its own annular inclined surface. The rubber sealing sleeve 5 is compressed and continuously contracts towards its center. By applying pressure to the rubber sealing sleeve 5, the inner side of the rubber sealing sleeve 5 and the outer side of the cable are pressed together. The contact resistance increases continuously, thus fixing the cable to the left fixed shell 3, thereby fixing the cable to the connecting shell 1. Then, another cable is passed from right to left through the right fixed shell 3 and connecting shell 2 and fixed using the same principle. Next, the operator aligns connecting shell 2 and connecting shell 1 horizontally and brings them together, allowing the insertion tube 6 to be inserted into the interior of connecting shell 1. Then, the operator moves the fixing ring 7 along the annular groove towards connecting shell 1, while simultaneously rotating the fixing ring 7 to connect it to the threaded groove 2 on connecting shell 1, thus fixing the connection between connecting shell 2 and connecting shell 1. Finally, the operator rotates the moving ring 834 to connect it to the corresponding threaded groove 3, thus fixing the connection between the two shells. The transverse center parts are brought together, and the moving ring 834 drives the corresponding annular pressure plate 833 to move synchronously. The annular pressure plate 833 moves along the outer arc surface of the corresponding connecting shell 1 or connecting shell 2 and the inner arc wall of the corresponding annular shell 831 into the adjacent annular shell 831. During the movement of the annular pressure plate 833, it cooperates with the corresponding annular shell 831, thereby squeezing the annular rubber airbag 3 832 inside the annular shell 831. The annular rubber airbag 3 832 is compressed, its volume decreases and its internal pressure increases. This, in turn, increases the air pressure inside the annular rubber airbag 1 81 and the annular rubber airbag 2 82 simultaneously through the branch pipe 835 or the straight connecting pipe 836. The increased air pressure inside the annular rubber airbag 2 82 causes it to expand outward, pressing against the corresponding annular groove 2. The expansion and filling process involves inflating the rubber airbag 82 to fill the gap between the annular groove 2 and the adjacent cable 9, thereby achieving a waterproof seal between the connecting shell 1 or connecting shell 2 and the cable 9. Simultaneously, the annular rubber airbag 81 fills the contact gap between the annular groove 1 and the insertion pipe 6 using the same principle, thus sealing the connection gap between connecting shell 1 and connecting shell 2. During operation, rotating the moving ring 834 moves the annular pressure plate 833, which adjusts the volume of the corresponding annular rubber airbag 832. This allows for control of the expansion degree caused by the increased air pressure within the annular rubber airbags 82 and 81, as needed.This allows for adjustment of the sealing and waterproofing strength of the corresponding sealing and waterproofing parts of the annular rubber airbags 82 and 81, and is easy to use.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A waterproof cable connector assembly, comprising a first connecting shell (1), a second connecting shell (2) installed at the right end of the first connecting shell (1), a plug tube (6) provided at the left end of the interior of the second connecting shell (2), the right end of the interior of the first connecting shell (1) being plugged into the left end of the plug tube (6), and a cable (9) being installed inside both the first connecting shell (1) and the second connecting shell (2), characterized in that: It also includes protective mechanisms (8); Protective mechanism (8): It includes an annular rubber airbag one (81), an annular rubber airbag two (82) and an adjustment component (83). The annular rubber airbag one (81) is placed in an annular groove one opened in the inner wall of the connecting shell one (1). Annular rubber airbag two (82) is placed in annular groove two opened inside the connecting shell one (1) and the connecting shell two (2). An adjustment component (83) is provided between the connecting shell one (1) and the connecting shell two (2). The adjustment component (83) is installed in conjunction with the annular rubber airbag one (81) and the annular rubber airbag two (82) respectively.

2. The waterproof cable connector assembly according to claim 1, characterized in that: Both the outer opposite ends of the connecting shell 1 (1) and the connecting shell 2 (2) are provided with threaded grooves 1, and fixed shells (3) are threadedly connected to the threaded grooves 1.

3. A waterproof cable connector assembly according to claim 2, characterized in that: Both the inner opposite ends of the connecting shell one (1) and the connecting shell two (2) are provided with annular cone seats (4), and the middle part of the fixed shell (3) is provided with rubber sealing sleeves (5). The rubber sealing sleeves (5) are all installed in conjunction with the adjacent annular cone seats (4).

4. A waterproof cable connector assembly according to claim 3, characterized in that: The outer edge of the rubber sealing sleeve (5) near the adjacent annular cone seat (4) is an annular inclined surface.

5. A waterproof cable connector assembly according to claim 1, characterized in that: A fixing ring (7) is slidably connected in the annular groove three opened at the outer left end of the connecting shell two (2), and a threaded groove two is opened at the outer right end of the connecting shell one (1), and the inside of the fixing ring (7) is threadedly connected to the threaded groove two.

6. A waterproof cable connector assembly according to claim 1, characterized in that: The adjustment component (83) includes an annular shell (831), an annular rubber airbag three (832), a branch pipe (835), and a straight connecting pipe (836). The annular shell (831) is respectively disposed on the outside of the connecting shell one (1) and the connecting shell two (2). The annular rubber airbag three (832) is placed inside the annular shell (831). The connecting shell one (1) has a branch pipe (835) in its wall. The annular rubber airbag two (82) and the annular rubber airbag one (81) on the left are connected to the annular rubber airbag three (832) on the left through the branch pipe (835). The connecting shell two (2) has a straight connecting pipe (836) in its wall. The annular rubber airbag two (82) on the right is connected to the annular rubber airbag three (832) on the right through the straight connecting pipe (836).

7. A waterproof cable connector assembly according to claim 6, characterized in that: The adjustment assembly (83) further includes an annular pressure plate (833) and a movable ring (834). The annular pressure plate (833) is threadedly connected to the threaded grooves three opened on the outer side of the connecting shell one (1) and the connecting shell two (2). The two annular pressure plates (833) are provided with movable rings (834) on their opposite inner ends. The movable rings (834) are installed in conjunction with the adjacent annular rubber airbag three (832).

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