Portable cable joint sealing performance detection tool

Abstract

The utility model relates to the technical field of cable joint sealing detection, and discloses a portable cable joint sealing performance detection tool which comprises a cable butt joint assembly, and a lower sealing assembly and an upper sealing assembly which are used for providing a sealing space for the cable butt joint assembly are arranged at the positions, close to the upper end and the lower end, of the outer portion of the cable butt joint assembly respectively. Through the sealing cooperation of the lower sealing assembly and the upper sealing assembly, it is ensured that the air pressure can effectively pressurize the cable joint, and through the accurate control of the inflation pressurization assembly, the air pressure stability is ensured, so that the accurate detection of the sealing performance of the cable joint is realized, the portability of the equipment is improved, the equipment size is reduced, and the cost is reduced. Through efficient cooperation of all the components, the precision and stability of sealing detection are remarkably improved, and the problems that a traditional detection tool is large in size, not easy to carry and inconvenient to operate are solved.

Description

Technical Field

[0001] This utility model relates to the field of cable joint sealing testing technology, specifically, to a portable cable joint sealing performance testing tool. Background Technology

[0002] A cable connector is an assembly used to connect the two ends of a cable. It ensures the stable transmission of electrical signals or power by connecting the conductors of different cables to achieve the continuity of current or signals. Cable connectors typically consist of a connector body, sealing material, conductive terminals, etc. Depending on the usage environment, the design and materials of cable connectors vary, such as waterproofing, fireproofing, and corrosion resistance. Common types of cable connectors include straight-through connectors, branch connectors, and grounding connectors. Cable connectors are widely used in power, communication, transportation, and other fields to ensure the normal operation of power systems, communication networks, etc. During installation, cable connectors require strict process treatment to prevent poor contact or leakage and ensure their long-term stable operation.

[0003] Existing traditional cable joint sealing performance testing equipment is generally large and complex in structure, making it inconvenient to carry and operate in actual use. Especially in some field operation environments, installers often need to move the equipment frequently, and the large testing tools cause significant inconvenience. In addition, the operation process of traditional equipment is relatively cumbersome, requiring certain professional knowledge to use correctly, resulting in low equipment efficiency and potentially affecting the installation schedule. Since the sealing performance of cable joints directly affects the long-term performance and safety of cables, existing testing tools cannot quickly and efficiently complete the sealing test. Therefore, when installers encounter complex environments or time constraints on site, they may not be able to detect cable joint sealing problems in time, which may affect the reliability of power systems, communication systems, etc. If the sealing performance is not effectively tested and guaranteed, it may lead to leakage, short circuit or other faults in the cable joint, further affecting the stability of the entire power or communication network, causing safety hazards and economic losses. Therefore, those skilled in the art provide a portable cable joint sealing performance testing tool to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a portable cable joint sealing performance testing tool to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a portable cable joint sealing performance testing tool, including a cable splicing assembly. The cable splicing assembly has a lower sealing assembly and an upper sealing assembly respectively provided at its upper and lower ends for providing a sealing space for the cable splicing assembly. The upper end of the lower sealing assembly is provided with an air-pressurizing assembly for applying air pressure to the cable splicing assembly and testing the sealing performance. The lower sealing assembly and the upper sealing assembly are provided with sealing locking assemblies on both sides for tightly connecting the lower sealing assembly and the upper sealing assembly.

[0006] As a preferred embodiment of the above technical solution, the lower sealing assembly includes a base plate, a lower frame is fixedly connected to the upper center of the base plate near the edge, a lower semi-circular groove is opened through the upper center of both sides of the lower frame, a lower sealing gasket is fitted to the upper end of the lower frame and the inner wall of the two lower semi-circular grooves, and a lower positioning block is fixedly connected to the upper end of the base plate near the four diagonals, and a guide hole is opened in the upper part of each of the four lower positioning blocks.

[0007] As a preferred embodiment of the above technical solution, the upper sealing assembly includes a cover plate, which is disposed on the upper end of the lower frame. An upper frame is fixedly connected to the center of the lower end of the cover plate near the edge. An upper semi-circular groove is provided through the center of both sides of the upper frame near the bottom. An upper sealing gasket is fitted to the lower end of the upper frame and the inner wall of the two upper semi-circular grooves. The lower end of the upper sealing gasket and the upper end of the lower sealing gasket are fitted together, and the upper sealing gasket and the lower sealing gasket are detachably assembled.

[0008] As a preferred embodiment of the above technical solution, upper positioning blocks are fixedly connected to the lower end of the cover plate at four diagonal points. The lower ends of the four upper positioning blocks and the upper ends of the four lower positioning blocks are mutually fitted. The four upper positioning blocks and the four lower positioning blocks are detachably assembled. Guide posts are fixedly connected to the center of the lower end of the four upper positioning blocks. The four guide posts are slidably sleeved inside the four guide holes, and the guide posts and the four guide holes are detachably connected. An internal threaded hole is provided through one end of the inner side of the cover plate. An external threaded tube is threaded into the internal threaded hole. A pressure gauge is fixedly sleeved on the upper end of the external threaded tube. A positioning ring is fixedly connected to the center of the upper end of the cover plate.

[0009] As a preferred embodiment of the above technical solution, the inflation and pressurization assembly includes a sealing tube, which is placed inside the positioning ring. The sealing tube and the positioning ring are detachably connected. A positioning hole is provided through the lower part of one of the opposite sides of the sealing tube. A positioning tube is fixedly sleeved on the other opposite side of the sealing tube. An air inlet one-way valve is fixedly sleeved inside each of the two positioning holes. An air outlet one-way valve is fixedly connected to the opposite ends of the two positioning tubes. A limiting ring is fixedly sleeved on the lower part of the inner edge of the sealing tube.

[0010] As a preferred embodiment of the above technical solution, a lifting and returning spring is sleeved at the lower center of the sealing tube, and the lower end of the lifting and returning spring is fixedly connected to the center of the lower inner wall of the sealing tube. A piston is slidably sleeved at the upper part of the sealing tube. A limiting plate is fixedly connected to the top of the sealing tube. A guide tube is fixedly sleeved at the center of the limiting plate. The limiting plate and the limiting ring are used to limit the longitudinal linear movement distance of the piston. A pressure rod is slidably sleeved inside the guide tube. The lower end of the pressure rod is fixedly connected to the upper end of the piston. A pressure plate is fixedly connected to the upper end of the pressure rod.

[0011] As a preferred embodiment of the above technical solution, the sealing and locking assembly includes two positioning lugs and a strip-shaped connecting block. The two positioning lugs are fixedly connected to the center of one side of the base plate near both ends. The strip-shaped connecting block is fixedly connected to the center of the cover plate near the two positioning lugs. A rotating hole is opened through the center of the two positioning lugs on the side away from the base plate. A locking groove is opened longitudinally through the strip-shaped connecting block on the side away from the cover plate. A rotating shaft is rotatably sleeved inside the two rotating holes. A bushing is rotatably sleeved on the outside of the rotating shaft. A screw is fixedly connected to the center of the upper part of the bushing, and a butterfly locking knob is threaded on the outside of the screw. The screw and the locking groove cooperate with each other. The lower end of the butterfly locking knob is in adjustable contact with the upper end of the locking groove.

[0012] As a preferred embodiment of the above technical solution, the cable docking assembly includes a first pressurized hose and a second pressurized hose. The first pressurized hose and the second pressurized hose are respectively sleeved on the outside of two one-way valves near the outlet. The first pressurized hose and the second pressurized hose are detachably connected to the two one-way valves. A female docking connector is sleeved on the end of the first pressurized hose away from the corresponding one-way valve. The female docking connector and the first pressurized hose are detachably connected. A limiting steel ring for controlling the insertion depth of the first pressurized hose is fixedly sleeved inside the female docking connector near the end of the first pressurized hose. A positioning ring is fixedly sleeved on the outside of the female docking connector away from the limiting steel ring. A first sealing ring is fixedly connected to the center of the end of the female docking connector near the positioning ring, close to the edge.

[0013] As a preferred embodiment of the above technical solution, a sub-connector is sleeved at the end of the second pressurizing hose away from the corresponding side of the outlet check valve. The sub-connector and the outlet check valve are detachably connected. An external threaded connector is fixedly sleeved inside the sub-connector near the positioning ring. The external threaded connector is threaded inside the female connector and is detachably connected to the female connector. A second sealing ring is fixedly connected to the center near the edge of the sub-connector near the external threaded connector. The second sealing ring and the first sealing ring fit together. The outer end of the first pressurizing hose contacts the lower and upper sealing gaskets in the lower and upper semicircular grooves on one side. The outer end of the second pressurizing hose contacts the lower and upper sealing gaskets in the lower and upper semicircular grooves on the other side.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This portable cable joint sealing performance testing tool ensures effective air pressure on the cable joint through the sealing cooperation of the lower and upper sealing components. Simultaneously, precise control of the inflation and pressurization component guarantees air pressure stability, thus enabling accurate testing of the cable joint's sealing performance. The sealing locking component ensures a firm seal by adjusting the force, effectively securing the lower and upper sealing components together. The cable connection component, through an efficient airflow system, ensures a smooth and accurate testing process.

[0016] This design not only improves the portability and reduces the size of the equipment, making on-site operation more convenient, but also significantly improves the accuracy and stability of seal testing through the efficient collaboration of various components, avoiding the problems of traditional testing tools being bulky, difficult to carry, and inconvenient to operate. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a portable cable joint sealing performance testing tool;

[0018] Figure 2 A three-dimensional disassembled structural diagram of a portable cable joint sealing performance testing tool;

[0019] Figure 3 This is a three-dimensional structural diagram of the lower sealing assembly;

[0020] Figure 4 This is a three-dimensional disassembled structural diagram of the upper sealing assembly;

[0021] Figure 5 This is a three-dimensional disassembled structural diagram of the upper sealing assembly from another perspective;

[0022] Figure 6 A three-dimensional disassembled structural diagram of the inflation and pressurization component;

[0023] Figure 7 This is a schematic diagram of the three-dimensional structure of the limiting ring;

[0024] Figure 8 A three-dimensional disassembled structural diagram of the sealing and locking assembly;

[0025] Figure 9 A three-dimensional disassembled structural diagram of the cable connection assembly;

[0026] Figure 10 This is a three-dimensional structural diagram of the first sealing ring.

[0027] Legend: 1. Lower sealing assembly; 101. Base plate; 102. Lower frame; 103. Lower semi-circular groove; 104. Lower sealing gasket; 105. Lower positioning block; 106. Guide hole;

[0028] 2. Upper sealing assembly; 201. Cover plate; 202. Upper frame; 203. Upper semi-circular groove; 204. Upper sealing gasket; 205. Upper positioning block; 206. Guide post; 207. Internal threaded hole; 208. External threaded pipe; 209. Pressure gauge; 2010. Positioning ring;

[0029] 3. Inflation and pressurization assembly; 301. Sealing tube; 302. Positioning hole; 303. Positioning tube; 304. Inlet check valve; 305. Outlet check valve; 306. Limiting ring; 307. Lifting and returning spring; 308. Piston; 309. Limiting plate; 3010. Guide tube; 3011. Pressure rod; 3012. Pressure plate;

[0030] 4. Sealing and locking assembly; 401. Positioning lug; 402. Strip connecting block; 403. Rotary hole; 404. Locking groove; 405. Rotary shaft; 406. Bushing; 407. Screw; 408. Butterfly locking knob;

[0031] 5. Cable connection assembly; 501. First pressurized hose; 502. Second pressurized hose; 503. Female connection joint; 504. Limiting steel ring; 505. Positioning ring; 506. First sealing ring; 507. Female connection joint; 508. External threaded connection joint; 509. Second sealing ring. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0033] Please see Figures 1-2As shown, this utility model provides a technical solution: a portable cable joint sealing performance testing tool, including a cable splicing assembly 5. The upper and lower ends of the cable splicing assembly 5 are respectively provided with a lower sealing assembly 1 and an upper sealing assembly 2 for providing a sealing space for the cable splicing assembly 5. An inflation and pressurization assembly 3 is provided at the upper end of the lower sealing assembly 1 for applying air pressure to the cable splicing assembly 5 and testing the sealing performance. Sealing and locking assemblies 4 are provided on both sides of the lower sealing assembly 1 and the upper sealing assembly 2 for tightly connecting the lower sealing assembly 1 and the upper sealing assembly 2.

[0034] This portable cable joint sealing performance testing tool ensures effective air pressure on the cable joint through the sealing cooperation of the lower sealing component 1 and the upper sealing component 2. Simultaneously, the precise control of the air pressure by the inflation and pressurization component 3 guarantees air pressure stability, thus achieving accurate testing of the cable joint's sealing performance. The sealing locking component 4 ensures a firm seal by adjusting the force, effectively securing the lower sealing component 1 and the upper sealing component 2 together. The cable connection component 5, through an efficient airflow system, ensures a smooth and accurate testing process. This design not only improves the portability and reduces the size of the equipment, making on-site operation more convenient, but also significantly enhances the accuracy and stability of the sealing test through the efficient collaboration of various components, avoiding the problems of traditional testing tools being bulky, difficult to carry, and inconvenient to operate.

[0035] As one implementation method in this embodiment, please refer to Figure 3 As shown, the lower sealing assembly 1 includes a base plate 101. A lower frame 102 is fixedly connected to the upper center of the base plate 101 near the edge. A lower semi-circular groove 103 is opened through the upper center of both sides of the lower frame 102. A lower sealing gasket 104 is attached to the upper end of the lower frame 102 and the inner wall of the two lower semi-circular grooves 103. Lower positioning blocks 105 are fixedly connected to the upper end of the base plate 101 near the four opposite corners. A guide hole 106 is opened in the upper part of each of the four lower positioning blocks 105.

[0036] The lower sealing assembly 1 forms a basic sealing structure through the base plate 101 and the lower frame 102. The lower semi-circular groove 103, together with the lower sealing gasket 104, ensures the sealing performance. The main function of the lower sealing assembly 1, together with the upper sealing assembly 2, is to provide an effective sealing space to ensure that there is no air leakage when the air pressure is increased. By setting the lower positioning block 105 and the guide hole 106, the lower sealing assembly 1 can be accurately connected to the upper sealing assembly 2 and ensure the stability of the sealing structure. The lower sealing assembly 1, together with the upper sealing assembly 2, can not only firmly support the cable docking assembly 5, but also ensure the uniform distribution of gas during inflation and pressurization, providing accurate sealing performance judgment for subsequent testing and avoiding misjudgment caused by air leakage. By cooperating with the upper sealing assembly 2, the lower sealing assembly 1 provides an efficient and reusable sealing performance testing environment for the entire system.

[0037] As one implementation method in this embodiment, please refer to Figures 4-5 As shown, the upper sealing assembly 2 includes a cover plate 201, which is disposed on the upper end of the lower frame 102. The upper frame 202 is fixedly connected to the center of the lower end of the cover plate 201 near the edge. A semi-circular groove 203 is provided through the lower center of both sides of the upper frame 202. An upper sealing gasket 204 is fitted to the lower end of the upper frame 202 and the inner wall of the two semi-circular grooves 203. The lower end of the upper sealing gasket 204 is fitted to the upper end of the lower sealing gasket 104, and the upper sealing gasket 204 and the lower sealing gasket 104 are detachably assembled. Upper positioning blocks 205 are fixedly connected to the four opposite corners of the lower end of the cover plate 201. The lower ends of the four upper positioning blocks 205 are fixed to the four... The upper ends of the lower positioning blocks 105 are fitted together. The four upper positioning blocks 205 and the four lower positioning blocks 105 are detachably assembled. The center of the lower end of each of the four upper positioning blocks 205 is fixedly connected to a guide post 206. The four guide posts 206 are slidably sleeved inside the four guide holes 106, and the guide posts 206 and the four guide holes 106 are detachably connected. An internal threaded hole 207 is provided through one end of the inner side of the cover plate 201. An external threaded tube 208 is threaded into the internal threaded hole 207. A pressure gauge 209 is fixedly sleeved on the upper end of the external threaded tube 208, and a positioning ring 2010 is fixedly connected to the center of the upper end of the cover plate 201.

[0038] The upper sealing assembly 2 forms a tight sealing structure with the lower sealing assembly 1 through the cover plate 201 and the upper frame 202. The combination of the upper semi-circular groove 203 and the upper sealing gasket 204 ensures the sealing effect, allowing air pressure to be stably applied to the cable connection assembly 5. The detachable assembly between the upper sealing assembly 2 and the lower sealing assembly 1 ensures the maintainability of the structure and allows different types of cable joints to be quickly adapted and sealed for testing. The precise fit between the upper positioning block 205 and the lower positioning block 105 ensures that the upper sealing assembly 2 and the lower sealing assembly 1 can be firmly connected without displacement, avoiding a decrease in sealing performance due to positional asymmetry. The efficient adjustable structure ensures that the equipment can work flexibly in different environments and provides a stable foundation for air pressure testing.

[0039] As one implementation method in this embodiment, please refer to Figures 6-7As shown, the inflation and pressurization assembly 3 includes a sealing tube 301, which is placed inside the positioning ring 2010. The sealing tube 301 and the positioning ring 2010 are detachably connected. Positioning holes 302 are provided at the lower part of one of the opposite sides of the sealing tube 301. Positioning tubes 303 are fixedly fitted on the other opposite side of the sealing tube 301. Inlet one-way valves 304 are fixedly fitted inside both positioning holes 302. Outlet one-way valves 305 are fixedly connected to the opposite ends of the two positioning tubes 303. A limiting ring 306 is fixedly fitted at the lower part of the inner edge of the sealing tube 301. A lifting and resetting spring 307 is fitted at the lower center of the sealing tube 301. The lower end of the lifting and resetting spring 307 is fixedly connected to the center of the lower inner wall of the sealing tube 301. A piston 308 is slidably fitted at the upper part of the sealing tube 301. A limiting plate 309 is fixedly connected to the top of the sealing tube 301. A guide tube 3010 is fixedly fitted at the center of the limiting plate 309. The limiting plate 309 and the limiting ring 306 are used to limit the longitudinal linear movement distance of the piston 308. A pressure rod 3011 is slidably fitted inside the guide tube 3010. The lower end of the pressure rod 3011 is fixedly connected to the upper end of the piston 308. A pressure plate 3012 is fixedly connected to the upper end of the pressure rod 3011.

[0040] The inflation and pressurization assembly 3 applies gas evenly to the sealed space through the sealing tube 301, playing a core role in pressurization and sealing detection. The positioning tube 303 and the inlet one-way valve 304 ensure unidirectional airflow and effectively prevent gas backflow. At the same time, the outlet one-way valve 305 can quickly deliver air pressure to the cable docking assembly 5 to detect the sealing performance of the cable docking assembly 5. The design of the limit ring 306 and the lifting return spring 307 allows the piston 308 to automatically return after pressurization, ensuring that each test is carried out in a stable and controllable air pressure environment. The cooperation of the pressure gauge 209 allows the tester to monitor the air pressure changes in real time, ensuring the accuracy of the sealing performance of the cable docking assembly 5 during the test. Through this precise pressurization control, the inflation and pressurization assembly 3 can accurately detect the sealing performance of the cable joint, ensuring the efficient operation of the equipment.

[0041] As one implementation method in this embodiment, please refer to Figure 8As shown, the sealing and locking assembly 4 includes two positioning lugs 401 and a strip-shaped connecting block 402. The two positioning lugs 401 are fixedly connected to the center of one side of the base plate 101 near both ends. The strip-shaped connecting block 402 is fixedly connected to the center of the cover plate 201 near the two positioning lugs 401. A rotating hole 403 is opened through the center of the two positioning lugs 401 on the side away from the base plate 101. A locking groove 404 is opened longitudinally through the end of the strip-shaped connecting block 402 away from the cover plate 201. A rotating shaft 405 is rotatably sleeved inside the two rotating holes 403. A bushing 406 is rotatably sleeved on the outside of the rotating shaft 405. A screw 407 is fixedly connected to the center of the upper part of the bushing 406. A butterfly locking knob 408 is threaded on the outside of the screw 407. The screw 407 and the locking groove 404 cooperate with each other. The lower end of the butterfly locking knob 408 is in adjustable contact with the upper end of the locking groove 404.

[0042] The sealing and locking assembly 4, through the structural design of the positioning lug 401 and the strip connecting block 402, effectively and tightly fixes the lower sealing assembly 1 and the upper sealing assembly 2 together. The cooperation between the rotating shaft 405 and the bushing 406 makes the locking operation of the assembly smoother and avoids the instability caused by the threaded connection. The screw 407 and the butterfly locking knob 408 cooperate with each other to adjust the locking force as needed, making the sealing effect more precise. This assembly not only ensures the stable connection of the upper and lower sealing assemblies 1, but also ensures the sealing performance during air pressure testing by adjusting the locking force. The adjustability and stability of this assembly effectively improve the sealing effect of the lower sealing assembly 1 and the upper sealing assembly 2 and the adaptability of the equipment, thereby providing a more accurate testing function.

[0043] As one implementation method in this embodiment, please refer to Figures 9-10As shown, the cable connection assembly 5 includes a first pressurized hose 501 and a second pressurized hose 502. The first pressurized hose 501 and the second pressurized hose 502 are respectively sleeved on the outer side of two one-way valves 305 near the air outlet. The first pressurized hose 501 and the second pressurized hose 502 are detachably connected to the two one-way valves 305. A female connector 503 is sleeved on the end of the first pressurized hose 501 away from the corresponding one-way valve 305. The connection between the second pressurizing hose 502 and the first pressurizing hose 501 is detachable. Inside the female connector 503, near the end of the first pressurizing hose 501, a limiting steel ring 504 is fixedly fitted to control the insertion depth of the first pressurizing hose 501. On the outer side of the female connector 503, away from the limiting steel ring 504, a positioning ring 505 is fixedly fitted. Near the center and edge of the end of the female connector 503 close to the positioning ring 505, a first sealing ring 506 is fixedly connected. The second pressurizing hose 502 is located away from the corresponding side... A female connector 507 is sleeved on one end of the exhaust check valve 305. The female connector 507 and the exhaust check valve 305 are detachably connected. An external threaded connector 508 is fixedly sleeved inside the female connector 507 near the positioning ring 505. The external threaded connector 508 is threaded into the female connector 503, and the external threaded connector 508 and the female connector 503 are detachably connected. The female connector 507 is close to the external threaded connector 508. A second sealing ring 509 is fixedly connected to the side center near the edge. The second sealing ring 509 and the first sealing ring 506 are in contact with each other. The outer end of the first pressurizing hose 501 is in contact with the lower sealing gasket 104 and the upper sealing gasket 204 in the lower semicircular groove 103 and the upper semicircular groove 203 on one side. The outer end of the second pressurizing hose 502 is in contact with the lower sealing gasket 104 and the upper sealing gasket 204 in the lower semicircular groove 103 and the upper semicircular groove 203 on the other side.

[0044] The cable connection assembly 5 consists of a first pressurizing hose 501 and a second pressurizing hose 502, used to deliver gas to the cable joint. Through its connection with the one-way valve 305, the cable connection assembly 5 can precisely control the input and output of gas pressure, ensuring unobstructed airflow during the testing process. The connection between the female connection joint 503 and the female connection joint 507 allows for a perfect fit between the cable joint and the pressurizing device, preventing airflow leakage due to asymmetry in the sealing area. The mutual cooperation between the first sealing ring 506 and the second sealing ring 509 ensures efficient sealing, preventing gas leakage and improving the accuracy and reliability of the test. Through this technical solution, the cable connection assembly 5 effectively enhances the sealing performance of the overall testing tool, providing a stable and reliable working environment for the sealing test of cable joints.

[0045] Working Principle: The lower sealing assembly 1 forms a basic sealing structure through the base plate 101 and the lower frame 102. The lower semi-circular groove 103, in conjunction with the lower sealing gasket 104, ensures a tight seal. The main function of the lower sealing assembly 1, together with the upper sealing assembly 2, is to provide an effective sealing space, ensuring no air leakage during pressurization. By setting the lower positioning block 105 and the guide hole 106, the lower sealing assembly 1 can accurately connect with the upper sealing assembly 2 and ensure the stability of the sealing structure. The lower sealing assembly 1, together with the upper sealing assembly 2, not only firmly supports the cable docking assembly 5 but also ensures the uniform distribution of gas during pressurization, providing accurate judgment of sealing performance for subsequent testing and avoiding misjudgments caused by air leakage. By cooperating with the upper sealing assembly 2, the lower sealing assembly 1 provides the entire system with high efficiency and reusability. In the sealing performance testing environment, the upper sealing component 2 forms a tight sealing structure with the lower sealing component 1 through the cover plate 201 and the upper frame 202. The combination of the upper semi-circular groove 203 and the upper sealing gasket 204 ensures the sealing effect, allowing air pressure to be stably applied to the cable connection component 5. The detachable assembly between the upper sealing component 2 and the lower sealing component 1 ensures the maintainability of the structure and allows different types of cable joints to be quickly adapted and tested for sealing. The precise fit between the upper positioning block 205 and the lower positioning block 105 ensures that the upper sealing component 2 and the lower sealing component 1 can be firmly connected without displacement, avoiding the reduction of sealing performance due to positional asymmetry. The efficient adjustable structure ensures that the equipment can work flexibly in different environments and provides a stable foundation for air pressure testing.

[0046] The inflation and pressurization assembly 3 uniformly applies gas to the sealed space through the sealing tube 301, playing a core role in pressurization and sealing detection. The positioning tube 303 and the inlet one-way valve 304 ensure unidirectional airflow and effectively prevent gas backflow. At the same time, the outlet one-way valve 305 can quickly deliver air pressure to the cable docking assembly 5, thereby detecting the sealing performance of the cable docking assembly 5. The design of the limit ring 306 and the lifting return spring 307 allows the piston 308 to automatically return after pressurization, ensuring that each test is conducted in a stable and controllable air pressure environment. The cooperation of the pressure gauge 209 allows the tester to monitor air pressure changes in real time, ensuring the accuracy of the sealing performance of the cable docking assembly 5 during the test. Through this precise pressurization control, the inflation and pressurization assembly 3 can accurately detect the cable docking... The sealing performance of the head ensures the efficient operation of the equipment. The sealing locking assembly 4, through the structural design of the positioning lug 401 and the strip connecting block 402, effectively and tightly fixes the lower sealing assembly 1 and the upper sealing assembly 2 together. The cooperation of the rotating shaft 405 and the bushing 406 makes the locking operation of the assembly smoother and avoids the instability caused by the threaded connection. The screw 407 and the butterfly locking knob 408 cooperate with each other to adjust the locking force as needed, making the sealing effect more precise. This assembly not only ensures the stable connection of the upper and lower sealing assemblies 1, but also ensures the sealing performance during air pressure testing by adjusting the locking force. The adjustability and stability of this assembly effectively improve the sealing effect of the lower sealing assembly 1 and the upper sealing assembly 2 and the adaptability of the equipment, thereby providing more accurate testing functions.

[0047] The cable connection assembly 5 consists of a first pressurizing hose 501 and a second pressurizing hose 502, used to deliver gas to the cable joint. Through its connection with the one-way valve 305, the cable connection assembly 5 can precisely control the input and output of gas pressure, ensuring unobstructed airflow during the testing process. The connection between the female connection joint 503 and the female connection joint 507 allows for a perfect fit between the cable joint and the pressurizing device, preventing airflow leakage due to asymmetry in the sealing area. The mutual cooperation between the first sealing ring 506 and the second sealing ring 509 ensures efficient sealing, preventing gas leakage and improving the accuracy and reliability of the test. Through this technical solution, the cable connection assembly 5 effectively enhances the sealing performance of the overall testing tool, providing a stable and reliable working environment for the sealing test of cable joints.

[0048] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A portable cable joint sealing performance testing tool, characterized in that: The cable docking assembly (5) includes a lower sealing assembly (1) and an upper sealing assembly (2) for providing a sealing space for the cable docking assembly (5) at its upper and lower ends, respectively. The lower sealing assembly (1) is provided with an air-pressurizing assembly (3) for applying air pressure to the cable docking assembly (5) and testing the sealing performance. The lower sealing assembly (1) and the upper sealing assembly (2) are provided with sealing locking assemblies (4) for tightly connecting the lower sealing assembly (1) and the upper sealing assembly (2) on both sides.

2. The portable cable joint sealing performance testing tool according to claim 1, characterized in that: The lower sealing assembly (1) includes a base plate (101). A lower frame (102) is fixedly connected to the upper center of the base plate (101) near the edge. A lower semi-circular groove (103) is opened through the upper center of both sides of the lower frame (102). A lower sealing gasket (104) is attached to the upper end of the lower frame (102) and the inner wall of the two lower semi-circular grooves (103). A lower positioning block (105) is fixedly connected to the upper end of the base plate (101) near the four opposite corners. A guide hole (106) is opened in the upper part of each of the four lower positioning blocks (105).

3. The portable cable joint sealing performance testing tool according to claim 2, characterized in that: The upper sealing assembly (2) includes a cover plate (201), which is located on the upper end of the lower frame (102). The lower center of the cover plate (201) is fixedly connected to the upper frame (202) near the edge. The upper frame (202) has upper semi-circular slots (203) through the lower center of both sides inside. The lower end of the upper frame (202) and the inner walls of the two upper semi-circular slots (203) are fitted with upper sealing gaskets (204). The lower end of the upper sealing gasket (204) and the upper end of the lower sealing gasket (104) are fitted together. The upper sealing gasket (204) and the lower sealing gasket (104) are detachably assembled.

4. The portable cable joint sealing performance testing tool according to claim 3, characterized in that: The cover plate (201) has upper positioning blocks (205) fixedly connected to its lower end at four diagonal points. The lower ends of the four upper positioning blocks (205) are in contact with the upper ends of the four lower positioning blocks (105). The four upper positioning blocks (205) and the four lower positioning blocks (105) are detachably assembled. The lower center of each of the four upper positioning blocks (205) is fixedly connected to a guide post (206). The four guide posts (206) are slidably sleeved on the four guide posts. The guide post (206) is detachably connected to the four guide holes (106) inside the hole (106). The cover plate (201) has an internal threaded hole (207) through one end on one side. An external threaded tube (208) is threaded inside the internal threaded hole (207). A pressure gauge (209) is fixedly sleeved on the upper end of the external threaded tube (208). A positioning ring (2010) is fixedly connected at the center of the upper end of the cover plate (201).

5. The portable cable joint sealing performance testing tool according to claim 4, characterized in that: The inflation and pressurization assembly (3) includes a sealing tube (301), which is placed inside the positioning ring (2010). The sealing tube (301) and the positioning ring (2010) are detachably connected. A positioning hole (302) is provided through the lower part of one of the opposite sides of the sealing tube (301). A positioning tube (303) is fixedly sleeved on the other opposite side of the sealing tube (301). An air inlet one-way valve (304) is fixedly sleeved inside the two positioning holes (302). An air outlet one-way valve (305) is fixedly connected to the opposite ends of the two positioning tubes (303). A limiting ring (306) is fixedly sleeved on the lower part of the inner edge of the sealing tube (301).

6. The portable cable joint sealing performance testing tool according to claim 5, characterized in that: A lifting and resetting spring (307) is fitted inside the lower center of the sealing tube (301). The lower end of the lifting and resetting spring (307) is fixedly connected to the center of the lower inner wall of the sealing tube (301). A piston (308) is slidably fitted inside the upper part of the sealing tube (301). A limiting plate (309) is fixedly connected to the top of the sealing tube (301). A guide tube (3010) is fixedly fitted inside the center of the limiting plate (309). The limiting plate (309) and the limiting ring (306) are used to limit the longitudinal linear movement distance of the piston (308). A pressure rod (3011) is slidably fitted inside the guide tube (3010). The lower end of the pressure rod (3011) is fixedly connected to the upper end of the piston (308). A pressure plate (3012) is fixedly connected to the upper end of the pressure rod (3011).

7. The portable cable joint sealing performance testing tool according to claim 3, characterized in that: The sealing and locking assembly (4) includes two positioning lugs (401) and a strip connecting block (402). The two positioning lugs (401) are fixedly connected to the center of one side of the base plate (101) near both ends. The strip connecting block (402) is fixedly connected to the center of the cover plate (201) near the two positioning lugs (401). A rotating hole (403) is opened through the center of the two positioning lugs (401) on the side away from the base plate (101). The strip connecting block (402) is located at the end away from the cover plate (201). A locking groove (404) is provided through the longitudinal direction. A rotating shaft (405) is rotatably sleeved inside the two rotating holes (403). A bushing (406) is rotatably sleeved on the outside of the rotating shaft (405). A screw (407) is fixedly connected at the center of the upper part of the bushing (406). A butterfly locking knob (408) is threaded on the outside of the screw (407). The screw (407) and the locking groove (404) cooperate with each other. The lower end of the butterfly locking knob (408) is in adjustable contact with the upper end of the locking groove (404).

8. A portable cable joint sealing performance testing tool according to claim 5, characterized in that: The cable connection assembly (5) includes a first pressurized hose (501) and a second pressurized hose (502). The first pressurized hose (501) and the second pressurized hose (502) are respectively sleeved on the outer side of two one-way valves (305) near the air outlet. The first pressurized hose (501) and the second pressurized hose (502) are detachably connected to the two one-way valves (305). A female connector (503) is sleeved on the end of the first pressurized hose (501) away from the corresponding one-way valve (305). The female connector (503) and the first pressurized hose (501) are detachably connected. A limiting steel ring (504) for controlling the insertion depth of the first pressurized hose (501) is fixedly sleeved inside the female connector (503) near one end of the first pressurized hose (501). A positioning ring (505) is fixedly sleeved on the outside of the female connector (503) away from the limiting steel ring (504). A first sealing ring (506) is fixedly connected to the center of the end of the female connector (503) near the positioning ring (505) near the edge.

9. A portable cable joint sealing performance testing tool according to claim 8, characterized in that: The second pressurizing hose (502) has a sub-connector (507) sleeved at one end of the outlet check valve (305) away from the corresponding side. The sub-connector (507) and the outlet check valve (305) are detachably connected. An external threaded connector (508) is fixedly sleeved inside the sub-connector (507) near the positioning ring (505). The external threaded connector (508) is threaded inside the female connector (503), and the external threaded connector (508) and the female connector (503) are detachably connected. The sub-connector (507) is close to the external... A second sealing ring (509) is fixedly connected to the center of one side of the threaded joint (508) near the edge. The second sealing ring (509) and the first sealing ring (506) are in contact with each other. The outer end of the first pressurized hose (501) is in contact with the lower sealing gasket (104) and the upper sealing gasket (204) in the lower semicircular groove (103) and the upper semicircular groove (203) on one side. The outer end of the second pressurized hose (502) is in contact with the lower sealing gasket (104) and the upper sealing gasket (204) in the lower semicircular groove (103) and the upper semicircular groove (203) on the other side.

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