Water-blocking and moisture-proof power cable

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a water-blocking moisture-proof power cable, which comprises a cable, a protection device arranged outside the cable, the protection device comprises a protection sleeve, a protection spring and connecting plates, the protection sleeve is sleeved outside the cable, the protection spring is sleeved outside the protection sleeve, and the connecting plates are connected to two ends of the protection spring. Clamping devices are arranged on the two sides of the connecting plate, each clamping device comprises a fixed sleeve, a movable block and a clamping plate, the protective sleeve is sleeved with the fixed sleeve, the movable block is arranged in the fixed sleeve, the clamping plate is arranged on one side of the movable block, and a matching mechanism is arranged on the outer side of the fixed sleeve and comprises a spiral groove, a matching plate, a matching sleeve, a matching block, a guide groove and a guide block. The spiral groove is formed in the outer side of the matching sleeve, the matching plate is arranged on the outer side of the matching sleeve, the matching block is connected to the inner side of the matching plate, and the guide block is arranged in the guide groove. According to the utility model, the safety and durability of the cable can be improved, the maintenance cost can be reduced, and the reliability of the whole power system can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of cable technology, specifically relating to a water-blocking and moisture-proof power cable. Background Technology

[0002] In power systems, cables serve as crucial carriers of energy transmission, and their safety and reliability directly impact the stable operation of the entire power network. However, existing power cable technologies, especially in terms of water resistance and moisture protection, still have some significant problems and shortcomings. These problems not only affect the service life and transmission efficiency of cables but may also lead to serious safety hazards.

[0003] First, cables in existing technologies are typically installed in an exposed manner. While this method is convenient for installation and maintenance, it significantly increases the risk of cable damage. Exposed cables are directly exposed to a complex and ever-changing external environment, making them susceptible to various physical and chemical factors. For example, in outdoor environments, cables may be affected by natural factors such as direct sunlight, rain, and drastic temperature changes, leading to aging and cracking of the cable sheath. In underground or humid environments, cables may face problems such as corrosion and moisture penetration. In addition, exposed cables are also vulnerable to damage from human factors, such as accidental collisions during construction or animal bites. This damage not only reduces the transmission efficiency of the cable but may also lead to serious safety accidents such as short circuits and leakage, posing a significant threat to the stable operation of the power system.

[0004] Secondly, although some existing technologies attempt to solve the problem of exposed cables by adding protective devices, the design and installation methods of these protective devices still have obvious defects. The most prominent problem is that the protective devices cannot be securely installed on the outside of the cable. This unstable installation method makes the protective devices easy to move or slip off on the outside of the cable. When the protective devices are displaced, some cable areas may be exposed again and lose the proper protection. This not only reduces the effectiveness of the protective devices, but may also cause uneven protection, making some areas weak points that are more susceptible to damage.

[0005] Finally, in response to the above problems, some equipment manufacturers have attempted to use clamping devices to secure protective devices in order to improve their stability. However, the design of these clamping devices is often too simple and uniform, and they cannot adapt to cables and protective sheaths of different specifications. There are many types of cables used in power systems, with varying diameters, and the thickness and material of protective sheaths may also vary depending on the application scenario. Simple clamping devices cannot effectively adapt to this diversity, resulting in insufficient clamping force in some cases, failing to securely fix the protective device; while in other cases, they may clamp too tightly, causing crushing damage to the cable or protective sheath. This "one-size-fits-all" design method severely limits the applicability of clamping devices, making it often necessary to equip different clamping devices for different specifications of cables in practical applications, increasing the complexity and cost of inventory management.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this invention is to provide a water-blocking and moisture-proof power cable to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A water-blocking and moisture-proof power cable includes a cable with a protective device on its outer side. The protective device includes a protective sleeve, a protective spring, and a connecting plate. The protective sleeve is fitted over the outer side of the cable, and the protective spring is movably fitted over the outer side of the protective sleeve. The connecting plate is connected to both ends of the protective spring. Clamping devices are provided on both sides of the connecting plate. Each clamping device includes a fixed sleeve, a movable block, and a clamping plate. The fixed sleeve is fitted over the outer side of the protective sleeve, and the movable block is movably disposed within the fixed sleeve. The clamping plate is disposed on one side of the movable block. A mating mechanism is provided on the outer side of the fixed sleeve. The mating mechanism includes a spiral groove, a mating plate, a mating sleeve, a mating block, a guide groove, and a guide block. The spiral groove is located on the outer side of the mating sleeve, and the mating sleeve is rotatably fitted over the outer side of the fixed sleeve. The mating plate is disposed on the outer side of the mating sleeve, and the mating block is fixedly connected to the inner side of the mating plate and is adapted to the spiral groove. The guide groove is located on the inner side of the mating sleeve, and the guide block is slidably disposed in the guide groove.

[0010] Preferably, a push spring is connected to one side of the movable block, and the other end of the push spring is connected to the outer wall of the clamping plate.

[0011] Preferably, a rubber strip is provided on the inner side of the clamping plate.

[0012] Preferably, both the guide groove and the guide block are designed with an inclined structure.

[0013] Preferably, the side wall of the fixed sleeve is provided with a sliding groove, and a slider is connected to one side of the guide block. The slider is slidably disposed in the sliding groove, and the guide block is connected to the movable block through the slider.

[0014] Preferably, a guide rod is fixedly provided on the outer side of the fixed sleeve, and a guide groove is correspondingly provided on the inner side of the mating sleeve. The mating sleeve is slidably connected to the guide rod through the guide groove. The design of the guide rod and the guide groove makes the use of the mating sleeve more stable.

[0015] Preferably, a control sleeve is rotatably provided on the outer side of the fixed sleeve, and one side of the control sleeve is fixedly connected to multiple mating plates. The design of the control sleeve simplifies the overall operation.

[0016] Preferably, the outer side of the control sleeve is provided with an anti-slip strip, which improves the operating feel and anti-slip performance of the control sleeve.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The design of the protective device of this utility model significantly improves the water-blocking and moisture-proof capabilities of power cables. By placing the protective sleeve on the outside of the cable, it effectively isolates the cable from the damage caused by moisture and humidity. The setting of the protective spring further enhances the cable's impact resistance and prevents damage to the protective sleeve from external impacts or animal bites, thereby ensuring the safety of the cable. The combination of the material and structural design of the protective spring and the protective sleeve not only provides solid protection but also allows the cable to be bent as necessary during installation without affecting its normal use.

[0019] (2) The ingenious design of the clamping device of this utility model ensures the stability and reliability of the protection device. The cooperation of the movable block and the push spring enables the clamping plate to converge inward and tightly clamp the protective sleeve to prevent it from moving on the outside of the cable. The rubber strip on the inner side of the clamping plate provides flexible buffering to avoid rigid damage to the protective sleeve. At the same time, it enhances the anti-slip ability between the clamping plate and the protective sleeve and improves the overall stability and clamping force.

[0020] (3) The innovative design of the mating mechanism of this utility model realizes precise control of the clamping device, ensuring the convenience and accuracy of the installation process. The compatibility of the spiral groove and the mating block, as well as the limiting design of the guide rod and the guide groove, enable the mating sleeve to slide along the guide rod and the guide groove, thereby driving the movement of the guide block and the movable block. This design not only simplifies the installation steps, but also improves the installation efficiency. The anti-slip strip on the outside of the control sleeve improves the operating feel and anti-slip ability, making the operation more stable and reliable. Through these precise mating and design, the entire protection device can be quickly and firmly installed on the cable, greatly improving the safety protection level of the cable. At the same time, it allows the clamping device to stably clamp cables of different specifications and protective sleeves of different thicknesses, effectively improving the applicability of the clamping device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the present invention;

[0023] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a cross-sectional view of the clamping device and the mating mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the connection structure between the guide block and the movable block of this utility model.

[0026] Explanation of key figure labels:

[0027] 1. Cable; 2. Protective sleeve; 3. Protective spring; 4. Connecting plate; 5. Fixing sleeve; 6. Movable block; 7. Clamping plate; 8. Spiral groove; 9. Mating plate; 10. Mating sleeve; 11. Mating block; 12. Guide groove; 13. Guide block; 14. Push spring; 15. Rubber strip; 16. Slide groove; 17. Slider; 18. Guide rod; 19. Guide groove; 20. Control sleeve; 21. Anti-slip strip. Detailed Implementation

[0028] The technical solution of this utility model patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Example

[0030] See appendix Figure 1-5 A water-blocking and moisture-proof power cable includes a cable 1, characterized in that: a protective device is provided on the outside of the cable 1, the protective device including a protective sleeve 2, a protective spring 3, and a connecting plate 4. The protective sleeve 2 is fitted on the outside of the cable 1, the protective spring 3 is movably fitted on the outside of the protective sleeve 2, the connecting plate 4 is respectively connected to both ends of the protective spring 3, and clamping devices are provided on both sides of the connecting plate 4. The clamping devices include a fixed sleeve 5, a movable block 6, and a clamping plate 7. The fixed sleeve 5 is fitted on the outside of the protective sleeve 2, the movable block 6 is movably disposed inside the fixed sleeve 5, and the clamping plate 7 is provided with... On one side of the movable block 6, a mating mechanism is provided on the outside of the fixed sleeve 5. The mating mechanism includes a spiral groove 8, a mating plate 9, a mating sleeve 10, a mating block 11, a guide groove 12, and a guide block 13. The spiral groove 8 is opened on the outside of the mating sleeve 10, and the mating sleeve 10 is rotatably fitted on the outside of the fixed sleeve 5. The mating plate 9 is set on the outside of the mating sleeve 10. The mating block 11 is fixedly connected to the inside of the mating plate 9 and is adapted to the spiral groove 8. The guide groove 12 is opened on the inside of the mating sleeve 10, and the guide block 13 is slidably set in the guide groove 12.

[0031] A push spring 14 is connected to one side of the movable block 6, and the other end of the push spring 14 is connected to the outer wall of the clamping plate 7. A rubber strip 15 is connected to the inner side of the clamping plate 7. Both the guide groove 12 and the guide block 13 are designed with an inclined structure. A sliding groove 16 is opened on the side wall of the fixed sleeve 5, and a slider 17 is connected to one side of the guide block 13. The slider 17 is slidably disposed in the sliding groove 16, and the guide block 13 is connected to the movable block 6 through the slider 17. A guide rod 18 is fixedly installed on the outer side of the fixed sleeve 5, and a corresponding guide groove 19 is opened on the inner side of the mating sleeve 10. The mating sleeve 10 is slidably connected to the guide rod 18 through the guide groove 19.

[0032] In this embodiment, when the device needs to be assembled, firstly, the protective sleeve 2 is directly fitted onto the outside of the cable 1, then the protective spring 3 along with the connecting plate 4 is fitted onto the outside of the protective sleeve 2, and then the fixing sleeve 5 is directly fitted onto one end of the outer side of the protective sleeve 2, so that one side of the fixing sleeve 5 contacts one of the connecting plates 4. Then, the control sleeve 20 is rotated. The anti-slip strip 21 provided on the outside of the control sleeve 20 can improve the operating feel and anti-slip ability. Then, the control sleeve 20 will drive the multiple mating plates 9 fixedly connected on one side to rotate simultaneously. 9 will drive the mating block 11 to rotate simultaneously. Due to the special structural design of the spiral groove 8 and the compatibility between the mating block 11 and the spiral groove 8, and because the design of the guide rod 18 and the guide groove 19 limits the mating sleeve 10, the mating sleeve 10 slides along the guide rod 18 and the guide groove 19 under the action of the spiral groove 8 and multiple mating blocks 11. At the same time, the mating sleeve 10 will drive the inner guide groove 12 to move. Due to the inclined structural design of the guide groove 12 and the guide block 13, and the slider 17 and the slide groove 16, the guide block 11... 3 and movable block 6 form a certain limit. When guide groove 12 moves with mating sleeve 10, guide block 13 will drive slider 17 to slide along slide groove 16. Then slider 17 will drive movable block 6 connected to the other end to move inward. Then movable block 6 will drive push spring 14 and clamping plate 7 to move inward. Then clamping plate 7 will contact the outer wall of protective sleeve 2. Then guide block 13 will continue to drive movable block 6 to move inward through slider 17. Then movable block 6 will press push spring 14, so that push spring 14 applies pressure to clamping plate 7. Apply pressure to ensure that the clamping plate 7 completely clamps the protective sleeve 2. The multiple rubber strips 15 on the inner side of the clamping plate 7 provide a certain degree of flexible cushioning to prevent rigid damage to the protective sleeve 2. At the same time, they improve the anti-slip ability of the contact surface between the inner wall of the clamping plate 7 and the outer wall of the protective sleeve 2, thereby improving the stability of the clamping. Then, another fixing sleeve 5 is fitted onto the other end of the outer side of the protective sleeve 2, and the two fixing sleeves 5 and the connecting plate 4 work together to press the protective spring 3. Then, follow the above steps to stably install the other fixing sleeve 5 onto the outer side of the protective sleeve 2.

[0033] In this embodiment, a control sleeve 20 is rotatably provided on the outer side of the fixed sleeve 5, and one side of the control sleeve 20 is fixedly connected to multiple mating plates 9. An anti-slip strip 21 is connected to the outer side of the control sleeve 20.

[0034] In practical applications, the protective sleeve 2 can be made of materials such as rubber to prevent water and moisture. The protective spring 3 can prevent the protective sleeve 2 from being damaged by external impacts or animal bites, thus preventing damage to the protective sleeve 2 and consequently preventing damage to the cable 1. At the same time, the special structure of the protective spring 3 and the material of the protective sleeve 2 can protect the cable 1 without affecting the normal bending required during installation. The connecting plates 4 connected to both ends of the protective spring 3 facilitate the clamping action of the protective spring 3, ensuring the protective function of the protective spring 3 in protecting the protective sleeve 2 and the cable 1.

[0035] In summary, when assembling this device, first, the protective sleeve 2 is directly fitted onto the outside of the cable 1. Then, the protective spring 3, along with the connecting plate 4, is fitted onto the outside of the protective sleeve 2. Next, the fixing sleeve 5 is directly fitted onto one end of the outer side of the protective sleeve 2, so that one side of the fixing sleeve 5 contacts one of the connecting plates 4. Then, the control sleeve 20 is rotated. The anti-slip strip 21 on the outside of the control sleeve 20 can improve the operating feel and anti-slip ability. Then, the control sleeve 20 will drive the multiple mating plates 9 fixedly connected on one side to rotate simultaneously. Plate 9 drives mating block 11 to rotate simultaneously. Due to the special structural design of spiral groove 8 and the compatibility between mating block 11 and spiral groove 8, and because the design of guide rod 18 and guide groove 19 limits the mating sleeve 10, mating sleeve 10 slides along guide rod 18 and guide groove 19 under the action of spiral groove 8 and multiple mating blocks 11. At the same time, mating sleeve 10 drives the inner guide groove 12 to move. Due to the inclined structural design of guide groove 12 and guide block 13, and the slider 17 and slide groove 16, the guide block 1... 3 and movable block 6 form a certain limit. When guide groove 12 moves with mating sleeve 10, guide block 13 will drive slider 17 to slide along slide groove 16. Then slider 17 will drive movable block 6 connected to the other end to move inward. Then movable block 6 will drive push spring 14 and clamping plate 7 to move inward. Then clamping plate 7 will contact the outer wall of protective sleeve 2. Then guide block 13 will continue to drive movable block 6 to move inward through slider 17. Then movable block 6 will press push spring 14, so that push spring 14 applies pressure to clamping plate 7. Apply pressure to ensure that the clamping plate 7 completely clamps the protective sleeve 2. The multiple rubber strips 15 on the inner side of the clamping plate 7 provide a certain degree of flexible cushioning to prevent rigid damage to the protective sleeve 2. At the same time, they improve the anti-slip ability of the contact surface between the inner wall of the clamping plate 7 and the outer wall of the protective sleeve 2, thereby improving the stability of the clamping. Then, another fixing sleeve 5 is fitted onto the other end of the outer side of the protective sleeve 2, and the two fixing sleeves 5 and the connecting plate 4 work together to press the protective spring 3. Then, follow the above steps to stably install the other fixing sleeve 5 onto the outer side of the protective sleeve 2.

[0036] In practical applications, the protective sleeve 2 can be made of materials such as rubber to prevent water and moisture. The protective spring 3 can prevent the protective sleeve 2 from being damaged by external impacts or animal bites, thus preventing damage to the protective sleeve 2 and consequently preventing damage to the cable 1. At the same time, the special structure of the protective spring 3 and the material of the protective sleeve 2 can protect the cable 1 without affecting the normal bending required during installation. The connecting plates 4 connected to both ends of the protective spring 3 facilitate the clamping action of the protective spring 3, ensuring the protective function of the protective spring 3 in protecting the protective sleeve 2 and the cable 1.

[0037] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A water-blocking and moisture-proof power cable, characterized in that, The cable includes a protective device on its outer side. The protective device comprises a protective sleeve, a protective spring, and a connecting plate. The protective sleeve is fitted over the outer side of the cable, the protective spring is fitted over the outer side of the protective sleeve, and the connecting plate is connected to both ends of the protective spring. Clamping devices are provided on both sides of the connecting plate. Each clamping device includes a fixed sleeve, a movable block, and a clamping plate. The fixed sleeve is fitted over the outer side of the protective sleeve, the movable block is located inside the fixed sleeve, and the clamping plate is located on one side of the movable block. A mating mechanism is provided on the outer side of the fixed sleeve. The mating mechanism includes a spiral groove, a mating plate, a mating sleeve, a mating block, a guide groove, and a guide block. The spiral groove is located on the outer side of the mating sleeve, the mating sleeve is fitted over the outer side of the fixed sleeve, the mating plate is located on the outer side of the mating sleeve, the mating block is connected to the inner side of the mating plate, the guide groove is located on the inner side of the mating sleeve, and the guide block is located in the guide groove.

2. The water-blocking and moisture-proof power cable according to claim 1, characterized in that, A push spring is connected to one side of the movable block, and the other end of the push spring is connected to the outer wall of the clamping plate.

3. The water-blocking and moisture-proof power cable according to claim 2, characterized in that, A rubber strip is connected to the inner side of the clamping plate.

4. The water-blocking and moisture-proof power cable according to claim 3, characterized in that, Both the guide groove and the guide block are designed with an inclined structure.

5. The water-blocking and moisture-proof power cable according to claim 4, characterized in that, The fixed sleeve has a groove on its side wall, and a slider is connected to one side of the guide block. The slider is slidably disposed in the groove, and the guide block is connected to the movable block through the slider.

6. The water-blocking and moisture-proof power cable according to claim 5, characterized in that, A guide rod is fixedly provided on the outer side of the fixed sleeve, and a guide groove is correspondingly provided on the inner side of the mating sleeve. The mating sleeve is slidably connected to the guide rod through the guide groove.

7. The water-blocking and moisture-proof power cable according to claim 6, characterized in that, The outer side of the fixed sleeve is provided with a control sleeve, and one side of the control sleeve is fixedly connected to multiple mating plates.

8. The water-blocking and moisture-proof power cable according to claim 7, characterized in that, The outer side of the control sleeve is equipped with an anti-slip strip.

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