Convenient-to-maintain waterproof device for cable distribution box

Abstract

The utility model relates to the technical field of cable distribution boxes, in particular to a waterproof device convenient to maintain for a cable distribution box, which comprises a case provided with an upper cavity and a lower cavity, a through hole communicated with the upper cavity and the lower cavity is arranged in the case, a loading bracket is fixedly arranged in the upper cavity, and the loading bracket is fixedly arranged in the lower cavity. The machine box is provided with a water blocking mechanism used for controlling opening and closing of the through opening through the loading support, and the machine box is provided with a drainage mechanism used for discharging water in the lower cavity through the water blocking mechanism. The case is divided into the upper cavity and the lower cavity through the partition plate, the lower cavity is used for transmitting cold air used for cooling to the upper cavity so as to carry out high-temperature protection on the case and carry out humidity monitoring on the lower cavity, and the lifting plate provided with the sealing block is hoisted through the movable sliding block elastically supported by the strong spring. The sealing block is used for controlling opening and closing of the through opening, water in the lower cavity is prevented from entering the upper cavity, and meanwhile the three-way long cavity is arranged so that the water in the lower cavity can be discharged in time.

Description

Technical Field

[0001] This utility model relates to the field of cable junction box technology, and in particular to a waterproof device for cable junction boxes that is easy to maintain. Background Technology

[0002] A cable junction box is a device used in power distribution systems to connect, branch, splice, and switch circuits of cable lines. It typically consists of a box body, cable joints, busbars, insulating supports, and a grounding system. The box body acts as an outer shell, protecting the internal components.

[0003] Existing cable junction boxes, such as the one disclosed in announcement number CN217563246U, have added a heat dissipation plate and ventilation openings to the top of the cable junction box. The structure of the heat dissipation plate has been optimized to enhance the heat dissipation performance of the box and reduce the risk of damage to power supply equipment due to heat accumulation inside the box. However, cable junction boxes installed and used in outdoor environments are prone to extreme weather conditions such as strong winds and heavy rains. Because of the ventilation hole structure, water can easily enter the box. Water entering the box can cause damage to electrical components inside the box, and may even cause short circuits and leakage risks, seriously threatening the safety of the surrounding environment. Utility Model Content

[0004] The purpose of this invention is to solve the problem that it is difficult to waterproof cable junction boxes in the existing technology, which affects their safe use, and to propose a waterproof device for cable junction boxes that is easy to maintain.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A waterproof device for a cable junction box that is easy to maintain includes a chassis with an upper cavity and a lower cavity. The chassis has an opening that connects the upper cavity and the lower cavity. A load-bearing bracket is fixedly installed in the upper cavity. The chassis is equipped with a water-blocking mechanism for controlling the opening and closing of the opening through the load-bearing bracket. The chassis is also equipped with a drainage mechanism for draining water from the lower cavity through the water-blocking mechanism.

[0007] Preferably, the chassis is integrally provided with a partition for separating the upper cavity and the lower cavity, and the opening is opened in the partition.

[0008] Preferably, the water-blocking mechanism includes a humidity sensor fixedly installed on the shelf, and a driver electrically connected to the humidity sensor is fixedly installed on the load-bearing bracket. A pressure-boosting swing rod is fixedly connected to the output end of the driver. A guide groove is provided in the load-bearing bracket. A strong spring fixedly connected to the guide groove is provided, and a movable slider that movably abuts against the pressure-boosting swing rod is provided in the guide groove. A traction link is pinned to the movable slider. A lifting plate is pinned to the traction link. A vertical rod is integrally connected to the lower end of the lifting plate. A sealing block that is slidably fitted into the through-hole is threaded onto the vertical rod.

[0009] Preferably, the high-strength spring is welded into the guide groove, and the movable slider is slidably fitted into the guide groove, and the through-hole and the sealing block are adapted boss structures.

[0010] Preferably, the drainage mechanism includes a three-way elongated cavity opened in the side wall of the chassis, in which a lifting rod fixedly connected to the lifting plate is slidably fitted, and a sealing gasket is fixedly connected to the lifting rod.

[0011] Preferably, the three-way elongated cavity connects the upper cavity and the lower cavity, and the three-way elongated cavity extends to the outside of the chassis.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. This utility model uses a partition to divide the chassis into an upper chamber and a lower chamber. The lower chamber is used to transfer cold air to the upper chamber for cooling, so as to protect the chassis from high temperature. At the same time, the lower chamber reduces the impact of water storage.

[0014] 2. This utility model uses a humidity sensor and driver installed in the chassis to monitor the humidity of the lower cavity. A movable slider supported by a strong spring is used to lift the lifting plate with a sealing block installed. The sealing block controls the opening and closing of the opening to prevent water from the lower cavity from entering the upper cavity. At the same time, a three-way long cavity is provided to enable timely drainage of water from the lower cavity.

[0015] 3. By opening an upper cavity and a lower cavity, this utility model makes the water blocking mechanism and the drainage mechanism relatively independent of the electrical components in the upper cavity, which ensures a high level of safety and facilitates independent inspection and maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a waterproof device for a cable junction box that is easy to maintain, as proposed in this utility model.

[0017] Figure 2 This is a cross-sectional view of a waterproof device for a cable junction box that is easy to maintain, as proposed in this utility model.

[0018] Figure 3This is an enlarged schematic diagram of part A of a waterproof device for a cable junction box that is easy to maintain, as proposed in this utility model.

[0019] In the diagram: 1. Chassis; 101. Upper cavity; 102. Lower cavity; 2. Through port; 3. Load-bearing bracket; 4. Humidity sensor; 5. Driver; 6. Pressure boosting swing arm; 7. Guide groove; 8. Strong spring; 9. Moving slider; 10. Traction link; 11. Lifting plate; 12. Vertical rod; 13. Sealing block; 14. T-junction long cavity; 15. Lifting rod; 16. Sealing gasket. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-3 A waterproof device for a cable junction box that is easy to maintain includes a housing 1 with an upper cavity 101 and a lower cavity 102. The housing 1 has an opening 2 that connects the upper cavity 101 and the lower cavity 102. A load-bearing bracket 3 is fixedly installed in the upper cavity 101. It should be noted that by opening an air inlet at the lower end of the housing 1 that connects to the lower cavity 102, it is possible to input low-temperature cold air into the housing 1. However, water may inevitably enter. By opening an air outlet at the upper end of the housing 1 that connects to the upper cavity 101, it is possible to exhaust the high-temperature hot air in the upper cavity 101.

[0022] The chassis 1 is equipped with a water-blocking mechanism for controlling the opening and closing of the inlet 2 via a load-bearing bracket 3. The water-blocking mechanism includes a humidity sensor 4 fixedly mounted on the shelf, and a driver 5 electrically connected to the humidity sensor 4 is fixedly mounted on the load-bearing bracket 3. The humidity sensor 4 monitors the humidity of the lower cavity 102. When there is too much water in the lower cavity 102, the temperature sensor 4 controls the driver 5 to open. A pressure-boosting lever 6 is fixedly connected to the output end of the driver 5. A guide groove 7 is provided in the load-bearing bracket 3. A strong spring 8 is fixedly connected in the guide groove 7, and a movable slider 9 that moves against the pressure-boosting lever 6 is provided in the guide groove 7. A pin is mounted on the movable slider 9. A traction link 10 is connected, and a lifting plate 11 is connected to the upper pin of the traction link 10. A vertical rod 12 is integrally connected to the lower end of the lifting plate 11. A sealing block 13 is threadedly connected to the vertical rod 12 and slidably fitted into the through-hole 2. It should be noted that under normal conditions, the sealing block 13 is in a low position, that is, the sealing block 13 is disengaged from the through-hole 2, so that the low temperature airflow in the lower cavity 102 can enter the upper cavity 101 and promote the exchange of hot and cold airflow in the upper cavity 101, thereby achieving a cooling effect. However, when there is too much water in the lower cavity 102 and it moves into the upper cavity 101, the through-hole 2 is closed to prevent the water from moving upward.

[0023] The chassis 1 is equipped with a drainage mechanism for draining water from the lower cavity 102 via a water-blocking mechanism. The drainage mechanism includes a three-way elongated cavity 14 opened in the side wall of the chassis 1. A lifting rod 15, which is fixedly connected to the lifting plate 11, is slidably fitted in the three-way elongated cavity 14. A sealing gasket 16 is fixedly connected to the lifting rod 15. Under normal conditions, the sealing gasket 16 closes the lower opening of the three-way elongated cavity 14, thus preventing the low-temperature cold air from escaping from the lower cavity 102. When the sealing gasket 16 moves upward with the lifting plate 11, the lower opening of the three-way elongated cavity 14 opens, and the water in the lower cavity 102 is drained out due to gravity.

[0024] The chassis 1 is integrally provided with a partition for separating the upper cavity 101 and the lower cavity 102, and the opening 2 is opened in the partition. The lower cavity 102 is used as a transition space to cool down the upper cavity 101.

[0025] A strong spring 8 is welded into the guide groove 7, and a sliding slider 9 is slidably fitted into the guide groove 7. The opening 2 and the sealing block 13 are compatible boss structures. The sliding slider 9 is symmetrically arranged left and right or front and back to facilitate the smooth traction of the lifting plate 11. The upward-moving sealing block 13 can seal the opening 2 to prevent water in the lower cavity 102 from flowing into the upper cavity 101.

[0026] The three-way long cavity 14 connects the upper cavity 101 and the lower cavity 102, and the three-way long cavity 14 extends to the outside of the chassis 1. A rubber ring that moves vertically with the lifting rod 15 is provided at the upper end of the three-way long cavity 14 connecting the upper cavity 101 to ensure the sealing effect and prevent water vapor in the lower cavity 102 from entering the upper cavity 101 through this ring.

[0027] It should be noted that the specific model and specifications of the humidity sensor 4 and the driver 5 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated here.

[0028] The functional principle of this utility model can be explained through the following operation methods:

[0029] Cold air is introduced into the upper cavity 101 through the lower cavity 102, so that the upper cavity 101 can achieve the exchange of hot and cold gases;

[0030] When excessive water accumulates in the lower cavity 102, the humidity sensor 4 detects this and controls the driver 5 to start. The deflected pressure boosting rod 6 applies pressure to the moving slider 9, causing the moving slider 9 to move along the guide groove 7. Through the traction connecting rod 10, the lifting plate 11 moves vertically upward, thereby causing the sealing block 13 to be fitted into the opening 2 and sealing the opening 2.

[0031] The lifting plate 11 drives the sealing gasket 16 to move vertically upward through the lifting rod 15, so as to open the lower end of the three-way long cavity 14, so that the water in the lower cavity 102 is discharged out of the lower cavity 102 through the three-way long cavity 14.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A waterproof device for a cable junction box that is easy to maintain, comprising a chassis (1) having an upper cavity (101) and a lower cavity (102), characterized in that, The chassis (1) has an opening (2) that connects the upper cavity (101) and the lower cavity (102). A load-bearing bracket (3) is fixedly installed in the upper cavity (101). The chassis (1) is equipped with a water-blocking mechanism for controlling the opening and closing of the opening (2) through the load-bearing bracket (3). The chassis (1) is also equipped with a drainage mechanism for draining water from the lower cavity (102) through the water-blocking mechanism.

2. The waterproof device for a cable junction box that is easy to maintain according to claim 1, characterized in that, The chassis (1) is integrally provided with a partition for separating the upper cavity (101) and the lower cavity (102), and the opening (2) is opened in the partition.

3. A waterproof device for a cable junction box that is easy to maintain, as described in claim 2, is characterized in that... The water-blocking mechanism includes a humidity sensor (4) fixedly installed on the shelf, and a driver (5) electrically connected to the humidity sensor (4) fixedly installed on the load-bearing bracket (3). The output end of the driver (5) is fixedly connected to a pressure-boosting swing rod (6). A guide groove (7) is provided in the load-bearing bracket (3). A strong spring (8) fixedly connected to the guide groove (7) and a movable slider (9) that movably abuts against the pressure-boosting swing rod (6) are provided in the guide groove (7). A traction link (10) is pin-connected to the movable slider (9). A lifting plate (11) is pin-connected to the traction link (10). A vertical rod (12) is integrally connected to the lower end of the lifting plate (11). A sealing block (13) that is slidably fitted into the through-hole (2) is threadedly connected to the vertical rod (12).

4. A waterproof device for a cable junction box that is easy to maintain, as described in claim 3, is characterized in that... The strong spring (8) is welded in the guide groove (7), and the movable slider (9) is slidably fitted in the guide groove (7). The through-hole (2) and the sealing block (13) are adapted boss structures.

5. A waterproof device for a cable junction box that is easy to maintain, as described in claim 4, is characterized in that... The drainage mechanism includes a three-way elongated cavity (14) opened in the side wall of the casing (1), and a lifting rod (15) fixedly connected to the lifting plate (11) is slidably fitted in the three-way elongated cavity (14), and a sealing gasket (16) is fixedly connected to the lifting rod (15).

6. A waterproof device for a cable junction box that is easy to maintain, as described in claim 5, is characterized in that... The three-way long cavity (14) connects the upper cavity (101) and the lower cavity (102), and the three-way long cavity (14) extends to the outside of the chassis (1).

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