Turnout control box drying device

The dual moisture treatment mechanism combining water-absorbing film and desiccant, as well as the water collection chamber and drainage system, solves the moisture problem inside the switch control box, improves the drying effect, and ensures the stability and reliability of the equipment.

CN223388898UActive Publication Date: 2025-09-26GUANGZHOU ELECTRIC SECTION OF GUANGZHOU-SHENZHEN RAILWAY CO LTD
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Patent Information

Application Number
CN202422893269.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-09-26
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

Moisture problems inside the turnout control box cause short circuits and corrosion of electrical components and degradation of oil pump performance, affecting the reliability and safety of equipment operation.

Method used

It adopts a dual moisture treatment mechanism combining water-absorbing membrane and desiccant, a water collection chamber and an optimized drainage system, including a funnel-shaped water collection chamber, a water trap pipe section, a one-way valve and a disappearing desiccant to ensure that moisture is quickly collected and discharged.

Benefits of technology

Significantly reduce the humidity inside the switch control box, ensure the normal operation of electrical components and oil pumps, reduce maintenance frequency, and improve equipment stability and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a turnout control box drying device which comprises a box body installed in a turnout control box, an opening is formed in the upper portion of the box body, a top cover is detachably connected to the opening, and the top cover comprises a cover frame and a water absorption film. A drying agent is arranged in the box body, a water discharging opening is formed in the bottom of the box body and connected with a water discharging pipe, the lower end of the water discharging pipe is connected with an oil leakage hole in the control box, and water can be discharged out of the control box through the oil leakage hole. The moisture-proof turnout control box has the advantages of being capable of effectively preventing moisture and enhancing moisture resistance and protection capability of the turnout control box.
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Description

Technical Field

[0001] The utility model relates to the technical field of turnout control boxes, in particular to a turnout control box drying device. Background Art

[0002] The turnout control box is a crucial component in railway turnout control systems. This control box is typically designed as an enclosed structure to protect key internal components, such as the oil pump and various electrical elements. However, in practical use, humidity within the box remains a pressing technical challenge.

[0003] Moisture often accumulates inside the switch control box, especially in humid climates or due to condensation caused by temperature fluctuations. This moisture can cause multiple problems. First, moisture accumulation can cause short circuits or corrosion in electrical components, impacting the normal operation and service life of the equipment. Second, the performance of the oil pump, which powers the switch control, can also be affected by moisture, causing oil emulsification or reducing pump efficiency, ultimately affecting switch switching operations. Furthermore, prolonged exposure to humidity can cause rust on the mechanical components within the control box, reducing equipment reliability and safety.

[0004] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and the present invention is made based on this situation. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and provide a turnout control box drying device which can effectively prevent moisture and enhance the moisture resistance and protection capabilities of the turnout control box.

[0006] The utility model is realized through the following technical solutions:

[0007] In order to solve the above technical problems, the utility model provides a switch control box drying device, including a box body installed in the switch control box, the upper part of the box body is provided with an opening, and the opening is detachably connected to a top cover, and the top cover includes a cover frame and a water-absorbing membrane; a desiccant is provided inside the box body, and a drain port is provided at the bottom of the box body, and the drain port is connected to a drain pipe, and the lower end of the drain pipe is connected to the oil leakage hole on the control box and can drain water to the outside of the control box through the oil leakage hole.

[0008] In order to further solve the technical problem to be solved by the present invention, the present invention provides a switch control box drying device, wherein a funnel-shaped water collecting chamber is provided at the bottom of the inner cavity of the box body, and the drain is provided at the lowest point of the water collecting chamber.

[0009] In order to further solve the technical problem to be solved by the present invention, the present invention provides a switch control box drying device, wherein a support net for supporting a desiccant is detachably installed in the inner cavity of the box body, and the inner cavity of the box body is also filled with a buffer cotton located at the desiccant.

[0010] In order to further solve the technical problem to be solved by the present invention, the present invention provides a switch control box drying device, wherein the box body is provided with a fixing device for fixing the box body in the switch control box.

[0011] In order to further solve the technical problem to be solved by the present invention, the present invention provides a switch control box drying device, wherein the fixing device includes a hoop connected to the bottom of the box body and a locking bolt for locking the hoop.

[0012] In order to further solve the technical problem to be solved by the present invention, the present invention provides a switch control box drying device, wherein the drainage pipe is provided with a U-shaped or V-shaped water trap pipe section.

[0013] In order to further solve the technical problem to be solved by the present invention, the present invention provides a switch control box drying device, wherein a joint for connecting the drain pipes at both ends thereof is detachably connected to the drain pipe, and a filter is detachably connected to the joint. The filter is in the shape of a pocket.

[0014] In order to further solve the technical problem to be solved by the present invention, the present invention provides a switch control box drying device, wherein a one-way valve is provided on the drainage pipe.

[0015] In order to further solve the technical problem to be solved by the present invention, the present invention provides a switch control box drying device, in which the lower end of the drain pipe is provided with a connecting seat, and a hollow drain bolt is rotatably connected to the connecting seat, the inner cavity of the drain bolt is connected to the drain pipe, and the drain bolt is threadedly connected to the oil leakage hole of the switch control box.

[0016] In order to further solve the technical problem to be solved by the present invention, the present invention provides a switch control box drying device, in which the cover frame of the top cover is clamped at the opening, and a strapping belt is provided between the top cover and the box body for reinforcing the two.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. Dual Moisture Treatment Mechanism: The design combines a water-absorbing film (such as PVA film) with a desiccant to achieve initial collection and deep adsorption of moisture. This dual mechanism effectively improves drying efficiency.

[0019] 2. Disappearing desiccant design: Using disappearing desiccant such as soda lime, these desiccants will be converted into muddy lime flow after absorbing moisture and can be discharged through the drainage system, thus preventing the desiccant from evaporating back into the control box.

[0020] 3. Optimization of the water collection chamber and drainage system: A funnel-shaped water collection chamber is set up to ensure that water can be quickly collected and discharged. At the same time, the drainage pipe is equipped with a water trap section and a one-way valve to further prevent small animals from entering and water backflow.

[0021] The utility model can significantly reduce the humidity in the switch control box, ensure the normal operation of electrical components and oil pumps; reduce the number of maintenance times for users, facilitate operation, and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 It is an explosion diagram of the utility model;

[0025] Figure 3 It is a cross-sectional schematic diagram of the present utility model. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0027] like Figures 1 to 3 As shown, the utility model relates to a switch control box drying device, which is mainly used to improve the drying effect inside the switch control box, thereby ensuring the stability and reliability of the control system. The drying device has a reasonable structural design and comprehensive functions, and effectively solves the problem of water accumulation in traditional switch control boxes in humid environments.

[0028] The device comprises a box body 1 located within a switch control box. An opening 11 is formed at the top of the box body 1. A top cover 2 is detachably connected to the opening 11. The top cover 2 comprises a cover frame 21 and a water-absorbing membrane 22. The membrane 22 is made of a water-absorbing material, such as polyvinyl alcohol (PVA) film. This membrane has excellent water absorption capacity and can continuously absorb moisture from the switch control box, maintaining a dry environment.

[0029] Inside the box 1, a desiccant 3 is installed to effectively enhance dehumidification, ensuring that moisture does not affect important electrical components and the oil pump. A drain port 12 is located at the bottom of the box 1. This drain port is connected to the oil leak hole on the control box via a drain pipe 4, allowing excess moisture inside the control box to drain smoothly out, preventing it from accumulating inside.

[0030] Specifically, when the water-absorbing membrane 22 absorbs moisture from the switch control box and reaches a certain saturation level, it drips excess water onto the desiccant 3. By absorbing this moisture, the desiccant 3 further enhances the drying effect of the internal environment. This design achieves multi-level moisture management: first, the water-absorbing membrane collects the moisture, and then the desiccant absorbs it deeply.

[0031] In order to increase the practicality and convenience of the desiccant 3, the design takes into account the replaceability of the desiccant. The desiccant 3 can be made of high-efficiency water-absorbing particles such as calcium chloride and silica gel, and the user can replace it regularly as needed. More preferably, the desiccant 3 can also be made of a disappearing desiccant such as soda lime. When the soda lime absorbs water, it will be converted into a muddy flow state with strong fluidity, which can be smoothly discharged to the outside of the control box through the drain pipe 4. This design not only reduces the frequency of maintenance, but also prevents the water absorbed in the desiccant from evaporating again, thereby improving the overall drying effect of the switch control box.

[0032] Furthermore, a support mesh 5 is removably mounted within the inner cavity of the box body 1. This mesh is designed to effectively support the desiccant 3, allowing it to remain suspended within the box body. This suspended design not only increases the desiccant's contact area and enhances its water absorption capacity, but also facilitates subsequent drainage. The support mesh prevents the desiccant 3 from directly contacting the bottom of the box body, preventing water accumulation caused by humid environments and ensuring efficient desiccant use.

[0033] Preferably, the inner cavity of the box body 1 is also filled with a layer of buffer cotton, especially around the desiccant 3. The provision of such buffer cotton can effectively reduce the shaking of desiccant particles caused by equipment vibration, ensure the stability and uniformity of the desiccant during use, and thus improve the overall dehumidification effect.

[0034] Furthermore, a funnel-shaped water collection chamber 13 is provided at the bottom of the inner cavity of the box body 1. The design of the water collection chamber 13 allows water to naturally flow to the lowest point, facilitating subsequent drainage. The drain port 12 is located at the lowest point of the water collection chamber 13, ensuring that if water accumulates, it can be drained quickly and smoothly, keeping the interior of the control box dry.

[0035] To avoid interference with the fixtures described later, the lower portion of the water collection chamber 13 is intentionally offset to one side. This design takes into account the spatial relationship between the water collection chamber and the fixtures, ensuring that the shape and position of the water collection chamber do not affect the proper function of the fixtures during use. By offsetting the lower portion of the water collection chamber 13, sufficient space is effectively freed up to provide the necessary range of motion and installation position for the fixtures.

[0036] To enhance the drainage system's functionality, the drain pipe 4 is equipped with a U- or V-shaped trap section 41. This trap section 41, similar in design to the traps found in bathroom sewers, primarily prevents small animals such as insects, rats, and ants from entering the drain pipe. Furthermore, the trap section 41 effectively blocks air flow between the inside and outside, further protecting the stability of the switch control box's internal environment.

[0037] Furthermore, the drain pipe 4 is detachably connected to a joint 42, which is used to connect the two drain pipes 4 together. Both ends of the joint 42 are threaded, making it easy to disassemble and maintain. A pocket-shaped filter 421 can also be connected to the joint 42 as a secondary protection device to further prevent small animals such as insects, rats, and ants from entering the drainage system. Of course, the trap section 41 can also be omitted, and the filter 421 can be used alone to achieve this protection function.

[0038] Furthermore, a one-way valve 7 is provided on the drainage pipe 4. The setting of the one-way valve can not only prevent the entry of small animals such as insects, rats, and ants, but also prevent water from flowing back, ensure the unidirectionality of the drainage system, and effectively maintain the dry environment inside the switch control box.

[0039] Finally, the lower end of the drain pipe 4 is provided with a connection base 8, to which a hollow drain bolt 81 is rotatably connected. The inner cavity of drain bolt 81 is connected to the drain pipe 4 and is fixed to the oil leakage hole of the switch control box via a threaded connection. This design facilitates the fixing of the drain pipe 4 while ensuring that water can be discharged smoothly to the outside, effectively enhancing the stability and reliability of the overall drainage system.

[0040] Furthermore, in order to prevent the drying device from shaking or loosening during operation, thereby affecting the normal operation of other components in the switch control box, a special fixing device 6 is provided on the box body 1. This fixing device 6 can effectively fix the box body 1 firmly in the switch control box, ensuring the stability and reliability of the entire system during use.

[0041] Preferably, the fixing device 6 comprises a hoop 61 connected to the bottom of the box body 1 and a locking bolt 62 for locking the hoop 61. The design of the hoop 61 allows it to be firmly fixed to the oil pump position in the control box. This configuration not only enhances the fixing force but also adapts to the internal structure of the control box, providing better support. By adjusting the locking bolt 62, the tightness of the hoop 61 can be adjusted at any time as needed, thus achieving a flexible fixing solution.

[0042] Furthermore, the cover frame 21 of the top cover 2 is tightly combined with the opening 11 in a snap-fit ​​manner. At the same time, in order to further enhance the firmness between the top cover 2 and the box body 1, a strapping belt 9 (such as Figure 1 As shown, the two ends of the strapping band 9 are connected to the box body, and the middle is pressed on the top cover 2. The strapping band 9 not only strengthens the top cover 2, but also effectively prevents the top cover from shaking or detaching due to vibration during use.

[0043] This multi-fixing method ensures that the entire drying device maintains excellent stability within the switch control box, ensuring the effective operation of each component, whether in normal operation or in high-vibration environments. This design improves the overall performance and service life of the equipment, providing users with a safer and more reliable operating experience.

Claims

1. A switch control box drying device, characterized in that: The invention comprises a box body (1) installed in a switch control box, wherein the upper portion of the box body (1) is provided with an opening (11), and a top cover (2) is detachably connected to the opening (11), and the top cover (2) comprises a cover frame (21) and a water-absorbing film (22); a desiccant (3) is provided inside the box body (1), and a drain port (12) is provided at the bottom of the box body (1), and the drain port (12) is connected to a drain pipe (4), and the lower end of the drain pipe (4) is connected to an oil leakage hole on the switch control box and can drain water to the outside of the switch control box through the oil leakage hole.

2. A switch control box drying device according to claim 1, characterized in that: A funnel-shaped water collecting chamber (13) is provided at the bottom of the inner cavity of the box body (1), and the water outlet (12) is provided at the lowest point of the water collecting chamber (13).

3. A switch control box drying device according to claim 1, characterized in that: A support net (5) for supporting the desiccant (3) is detachably installed in the inner cavity of the box body (1).

4. A switch control box drying device according to claim 1, characterized in that: The box body (1) is provided with a fixing device (6) for fixing it in a switch control box.

5. A switch control box drying device according to claim 4, characterized in that: The fixing device (6) comprises a hoop (61) connected to the bottom of the box body (1) and a locking bolt (62) for locking the hoop (61).

6. The turnout control box drying device according to claim 1, characterized in that: The drainage pipe (4) is provided with a U-shaped or V-shaped water trap pipe section (41).

7. The turnout control box drying device according to claim 1, characterized in that: The drainage pipe (4) is detachably connected to a joint (42) for butting the drainage pipes (4) at both ends together, and a filter screen (421) is detachably connected to the joint (42).

8. The turnout control box drying device according to claim 1, characterized in that: The drainage pipe (4) is provided with a one-way valve (7).

9. The turnout control box drying device according to claim 1, characterized in that: The lower end of the drainage pipe (4) is provided with a connecting seat (8), and a hollow drainage bolt (81) is rotatably connected to the connecting seat (8). The inner cavity of the drainage bolt (81) is communicated with the drainage pipe (4), and the drainage bolt (81) is threadedly connected to the oil leakage hole of the switch control box.

10. The turnout control box drying device according to claim 1, characterized in that: The cover frame (21) of the top cover (2) is snap-fitted to the opening (11), and a binding belt (9) is provided between the top cover (2) and the box body (1) for reinforcing the two.