A kind of air extraction waterproof structure of leaky cable connector

Abstract

The utility model provides a kind of air extraction waterproof structure of cable leakage terminal, it is related to communication equipment technical field, including main body shell, the outer surface of main body shell is equipped with first conical sealing sleeve, the outer surface of main body shell is equipped with cable leakage main body, the outer surface of main body shell is equipped with air extraction pipeline, the outer surface of main body shell is equipped with second conical sealing sleeve, the outer surface of main body shell is equipped with no grounding card installation area, the outer surface of no grounding card installation area is equipped with jumper wire.The utility model is equipped with first conical sealing sleeve and second conical sealing sleeve, combine epoxy sealant and sealing material, form multiple sealing structure, effectively prevent moisture infiltration, avoid the sealing failure problem caused by construction error due to traditional adhesive tape winding process, and the moisture in cavity is actively extracted by miniature vacuum pump and air extraction pipeline, cooperate check valve to prevent wet backflow, completely eliminate the risk of condensate water short circuit caused by moisture accumulation.

Description

Technical Field

[0001] This utility model relates to the field of communication equipment technology, specifically a vacuum waterproof structure for a leaky cable connector. Background Technology

[0002] Leaky cable connectors are joints used to connect leaky cables (leaky cables). They are commonly referred to as leaky cable connectors or feeder connectors. These connectors play an important role in communication systems, especially in narrow spaces where signal coverage is required, such as subway tunnels.

[0003] Currently, leaky cable connectors are a critical node in trackside communication systems. Traditional connector structures typically employ traditional tape and putty wrapping techniques, but these techniques are prone to water seepage due to construction errors. Furthermore, the moisture inside the connector cannot escape, easily leading to condensation and causing short circuits in the equipment, which severely affects the connector's service life. To address these issues, we propose an air-extraction and waterproof structure for leaky cable connectors. Utility Model Content

[0004] The purpose of this utility model is to provide an air-evacuation and waterproof structure for a leaky cable connector, so as to solve the problems mentioned in the background art and overcome its technical defects.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a vacuum and waterproof structure for a leaky cable connector, including a main shell, a first conical sealing sleeve on the outer surface of the main shell, a leaky cable body on the outer surface of the main shell, a vacuum pipe on the outer surface of the main shell, a second conical sealing sleeve on the outer surface of the main shell, a groundless clamp installation area on the outer surface of the main shell, and a jumper wire on the outer surface of the groundless clamp installation area.

[0006] As a further embodiment of this utility model: the main body shell includes a top cover and a base, the first conical sealing sleeve includes a first conical sleeve body, the outer surface of the main body shell is provided with a first sealing ring, and the outer surface of the main body shell is fixedly connected with an installation post.

[0007] As a further embodiment of this utility model: the interior of the first tapered sleeve body is threadedly connected to the outer surface of the mounting post, and epoxy sealant is filled between the interior of the first tapered sealing sleeve and the outer surface of the leaky cable body.

[0008] As a further embodiment of this utility model: a cavity is formed on the outer surface of the upper cover, a temperature sensor is fixedly connected to the outer surface of the upper cover, and a probe penetrating the upper cover is fixedly connected to the outer surface of the temperature sensor.

[0009] As a further embodiment of this utility model: a miniature vacuum pump is fixedly connected to the outer surface of the upper cover, the output end of the miniature vacuum pump is fixedly connected to the end of the suction pipe away from the upper cover, a normally closed solenoid valve is provided on the outer surface of the suction pipe, a check valve is fixedly connected to the end of the suction pipe away from the miniature vacuum pump, and a pressure relief valve is provided on the outer surface of the upper cover.

[0010] As a further embodiment of this utility model: the second conical sealing sleeve includes a second conical sleeve body, and a mating block is fixedly connected to the outer surface of the base.

[0011] As a further embodiment of this utility model: the outer surface of the docking block is tightly fitted with the interior of the second conical sleeve body, the interior of the second conical sleeve body is provided with sealing material, the sealing material is tightly fitted with the outer surface of the jumper wire, and the outer surface of the base is fixedly connected with an installation block.

[0012] As a further improvement of this utility model: the outer surface of the upper cover is provided with a second sealing ring, and the interior of the upper cover is provided with an installation groove, the size of which is adapted to the installation block.

[0013] Compared with the prior art, the beneficial effects of this utility model include:

[0014] This equipment employs a first conical sealing sleeve and a second conical sealing sleeve, combined with epoxy sealant and sealing materials, to form a multi-layered sealing structure. This effectively prevents moisture infiltration and avoids the sealing failure problems caused by construction errors in traditional tape wrapping processes. Furthermore, it actively extracts moisture from the cavity through a micro vacuum pump and extraction pipeline, and uses a check valve to prevent moisture backflow, completely eliminating the risk of condensation short circuits caused by moisture accumulation. This improves the long-term stability of the equipment and effectively solves the problem of moisture inside the joint not being able to be discharged, easily forming condensation that can cause short circuits and seriously affect the service life of the joint. The use of a grounding clamp-free installation area avoids the stress concentration problem caused by traditional grounding clamps, and the jumper wires use flexible connections, which can reduce the risk of mechanical damage and effectively extend the service life of the joint. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0016] Figure 1 The schematic diagram shows a front view of the structure according to one embodiment of the present invention;

[0017] Figure 2 The schematic diagram shows a side view of a structure according to one embodiment of the present invention;

[0018] Figure 3 The schematic diagram shows a side sectional view of a structure according to one embodiment of the present invention;

[0019] Figure 4 The schematic diagram shows a top-section structural diagram according to one embodiment of the present invention;

[0020] The diagram is labeled as follows: 1. Main shell; 101. Top cover; 102. Base; 103. Cavity; 2. First conical sealing sleeve; 201. First sealing ring; 202. Mounting post; 203. Epoxy sealant; 204. First conical sleeve body; 3. Leakage cable body; 4. Pressure relief valve; 5. Temperature sensor; 501. Probe; 6. Miniature vacuum pump; 7. Air extraction pipe; 701. Normally closed solenoid valve; 702. Check valve; 8. Second conical sealing sleeve; 801. Mounting block; 802. Connecting block; 803. Sealing material; 804. Second conical sleeve body; 805. Second sealing ring; 806. Mounting groove; 9. Groundless mounting area; 901. Jumper wire. Detailed Implementation

[0021] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0022] According to one embodiment of the present invention, in conjunction with the appendix Figures 1-4 As shown.

[0023] A leaky cable connector with a vacuum and waterproof structure includes a main shell 1, a first conical sealing sleeve 2 on the outer surface of the main shell 1, a leaky cable body 3 on the outer surface of the main shell 1, a top cover 101 and a base 102, a first conical sealing sleeve 204 including a first conical sleeve body 204, a first sealing ring 201 on the outer surface of the main shell 1, and a mounting post 202 fixedly connected to the outer surface of the main shell 1. The interior of the first conical sleeve body 204 is threadedly connected to the outer surface of the mounting post 202, and epoxy sealant 203 is filled between the interior of the first conical sealing sleeve 2 and the outer surface of the leaky cable body 3. The main shell 1 is composed of a top cover 101 and a base 102, and adopts a split design. The first sealing ring 201 and the mounting post 202 adopt a modular design, which facilitates the installation and maintenance of the equipment and improves construction efficiency. At the same time, the first sealing ring 201 ensures the waterproof isolation between the main body shell 1 and the external environment. The first conical sealing sleeve 2 includes the first conical sleeve body 204, which is internally threaded to the mounting post 202. The space between the sleeve and the leaky cable body 3 is filled with epoxy sealant 203. The threaded connection facilitates the adjustment of the sealing tightness to accommodate different wire diameters. The use of epoxy sealant 203 to fill the gaps can prevent water seepage and effectively improve the waterproof performance of the equipment. The leaky cable body 3 passes through the first conical sealing sleeve 2 and enters the main body shell 1, which will ensure the continuity of signal transmission and effectively reduce the impact of mechanical stress.

[0024] In this embodiment, the outer surface of the main shell 1 is provided with an air extraction pipe 7, the outer surface of the upper cover 101 is provided with a cavity 103, a temperature sensor 5 is fixedly connected to the outer surface of the upper cover 101, a probe 501 penetrating the upper cover 101 is fixedly connected to the outer surface of the temperature sensor 5, a miniature vacuum pump 6 is fixedly connected to the outer surface of the upper cover 101, the output end of the miniature vacuum pump 6 is fixedly connected to the end of the air extraction pipe 7 away from the upper cover 101, a normally closed solenoid valve 701 is provided on the outer surface of the air extraction pipe 7, a check valve 702 is fixedly connected to the end of the air extraction pipe 7 away from the miniature vacuum pump 6, and a pressure relief valve 4 is provided on the outer surface of the upper cover 101. The air extraction pipe 7 is connected to the miniature vacuum pump 6. The vacuum pump 6, with an external normally closed solenoid valve 701 and check valve 702 connected to the cavity 103, pumps out moisture to prevent condensation buildup. The normally closed solenoid valve 701 precisely regulates the airflow, and the check valve 702 prevents moisture backflow. A temperature sensor 5 is fixed to the top cover 101, with its probe 501 extending into the cavity 103 to monitor internal temperature changes in real time, preventing overheating or condensation risks. The output of the miniature vacuum pump 6 is connected to the extraction pipe 7 to actively maintain the dryness of the cavity 103 and extend the equipment's lifespan. A pressure relief valve 4 is located on the outer surface of the top cover 101 to automatically adjust the pressure in the cavity 103, preventing damage to the structure from negative or overpressure.

[0025] In this embodiment, the outer surface of the main body shell 1 is provided with a second conical sealing sleeve 8, the outer surface of the main body shell 1 is provided with a groundless mounting area 9, the outer surface of the groundless mounting area 9 is provided with a jumper wire 901, the second conical sealing sleeve 8 includes a second conical sleeve body 804, the outer surface of the base 102 is fixedly connected with a mating block 802, the outer surface of the mating block 802 is tightly fitted with the interior of the second conical sleeve body 804, the interior of the second conical sleeve body 804 is provided with sealing material 803, the sealing material 803 is tightly fitted with the outer surface of the jumper wire 901, the outer surface of the base 102 is fixedly connected with an mounting block 801, the outer surface of the upper cover 101 is provided with a second sealing ring 805, the interior of the upper cover 101 is provided with a mounting groove 806, the size of the mounting groove 806 is adapted to the mounting block 801, and the second sealing ring 805 is provided with a second sealing ring 805. The double-conical sealing sleeve 8 includes a second conical sleeve body 804, filled with sealing material 803. It is tightly fitted to the base 102 via a mating block 802. The sealing material 803 is adapted to the outer surface of the jumper 901 to ensure seamless waterproofing and facilitate the replacement or maintenance of the jumper 901. The outer surface of the grounding clip-free installation area 9 is connected to the jumper 901. The absence of a traditional grounding clip structure avoids mechanical damage caused by grounding clips and improves the reliability of the joint. The jumper 901 passes through the second conical sealing sleeve 8 and fits against the sealing material 803, which can reduce the impact of vibration or bending on signal transmission. The mounting block 801 is fixed to the base 102 and is adapted to the mounting groove 806 of the upper cover 101. The snap-fit ​​connection simplifies the installation process. The second sealing ring 805 enhances the overall sealing performance.

[0026] Working principle: When installing this leaky cable connector, the main body 3 of the leaky cable is first passed through the first conical sealing sleeve 2 and sealed with epoxy sealant 203. The sleeve is fixed by the mounting post 202. Then, the jumper 901 is pressed and sealed by the sealing material 803 in the second conical sealing sleeve 8. Then, the cavity 103 of the main body shell 1 is evacuated by the micro vacuum pump 6 to form a negative pressure. The moisture is discharged through the evacuation pipe 7. The check valve 702 is used to prevent backflow. The internal temperature is monitored in real time by the temperature sensor 5 and the pressure relief valve 4 is used to adjust the pressure. Finally, a stable connection that is waterproof, moisture-proof and can actively dehumidify is achieved.

[0027] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A vacuum-sealed waterproof structure for a leaky cable connector, characterized in that, Includes a main shell (1), the outer surface of the main shell (1) is provided with a first conical sealing sleeve (2), the outer surface of the main shell (1) is provided with a leaky cable body (3), the outer surface of the main shell (1) is provided with an air extraction pipe (7), the outer surface of the main shell (1) is provided with a second conical sealing sleeve (8), the outer surface of the main shell (1) is provided with a groundless card installation area (9), and the outer surface of the groundless card installation area (9) is provided with a jumper wire (901).

2. The air-evacuation and waterproof structure for a leaky cable connector according to claim 1, characterized in that, The main body shell (1) includes a top cover (101) and a base (102). The first conical sealing sleeve (2) includes a first conical sleeve body (204). The outer surface of the main body shell (1) is provided with a first sealing ring (201). The outer surface of the main body shell (1) is fixedly connected with an installation post (202).

3. The air-evacuation and waterproof structure for a leaky cable connector according to claim 2, characterized in that, The interior of the first tapered sleeve body (204) is threaded to the outer surface of the mounting post (202), and epoxy sealant (203) is filled between the interior of the first tapered sealing sleeve (2) and the outer surface of the leaky cable body (3).

4. The air-evacuation and waterproof structure for a leaky cable connector according to claim 2, characterized in that, A cavity (103) is provided on the outer surface of the upper cover (101), and a temperature sensor (5) is fixedly connected to the outer surface of the upper cover (101). A probe (501) penetrating the upper cover (101) is fixedly connected to the outer surface of the temperature sensor (5).

5. The air-evacuation and waterproof structure for a leaky cable connector according to claim 2, characterized in that, A miniature vacuum pump (6) is fixedly connected to the outer surface of the top cover (101). The output end of the miniature vacuum pump (6) is fixedly connected to the end of the suction pipe (7) away from the top cover (101). A normally closed solenoid valve (701) is provided on the outer surface of the suction pipe (7). A check valve (702) is fixedly connected to the end of the suction pipe (7) away from the miniature vacuum pump (6). A pressure relief valve (4) is provided on the outer surface of the top cover (101).

6. The air-evacuation and waterproof structure for a leaky cable connector according to claim 2, characterized in that, The second conical sealing sleeve (8) includes a second conical sleeve body (804), and a mating block (802) is fixedly connected to the outer surface of the base (102).

7. The air-evacuation and waterproof structure for a leaky cable connector according to claim 6, characterized in that, The outer surface of the docking block (802) is in close contact with the interior of the second conical sleeve body (804). The interior of the second conical sleeve body (804) is provided with sealing material (803). The sealing material (803) is in close contact with the outer surface of the jumper (901). The outer surface of the base (102) is fixedly connected with the mounting block (801).

8. The air-evacuation and waterproof structure for a leaky cable connector according to claim 2, characterized in that, The outer surface of the top cover (101) is provided with a second sealing ring (805), and the interior of the top cover (101) is provided with an installation groove (806), the size of which is adapted to the installation block (801).

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