Cable bridge with adjustable wiring

Abstract

The application relates to the technical field of cable bridge technology, and particularly discloses a wiring-adjustable cable bridge. The application comprises a cable limiting piece; the cable limiting piece comprises a cooling chamber installed at the bottom of the inner side of the cable bridge, a limiting block slidably installed at the top of the cooling chamber, and an adjusting column installed between the cooling chamber and the limiting block in a vertical and detachable mode; the inside of the cooling chamber is provided with a liquid channel; the transverse distance between cables is adjusted by adjusting the distance between two adjacent cooling chambers; the size of the cooling chamber or the height of the cable is adjusted by adjusting the height of the adjusting column; the transverse distance between cables is adjusted by adjusting the distance between two adjacent cooling chambers; the size of the cooling chamber or the height of the cable is adjusted by adjusting the height of the adjusting column, so that the distance between cables can be adjusted according to requirements, and heat dissipation at the bending position is facilitated.

Description

Technical Field

[0001] This invention relates to the field of cable tray technology, and more specifically to an adjustable cable tray for wiring. Background Technology

[0002] Cable trays are laying devices used to install cables. During cable installation, the inner side of the cable tray is subjected to pressure and the outer side to tension in the bent sections, which may reduce the equivalent heat dissipation surface area by 10% to 15%. Moreover, the bends are mostly made of spliced ​​and welded / bolted plate joints, which increases the contact thermal resistance and reduces the thermal conductivity. When the cable is bent, the conductor deforms, and the local cross-sectional area shrinks (especially for multi-core cables). The AC resistance increases due to the skin effect. Furthermore, bends (such as 90° right-angle bends) are prone to wind speed reduction, forming flow dead zones. The air convection speed is reduced by 30%-50% compared to straight sections, resulting in a significant decrease in heat dissipation capacity.

[0003] The utility model application CN201920342100.0 specifically discloses a heat-dissipating curved cable tray, including a bottom groove (1) and a cover plate (2), wherein the cover plate (2) is fixed to the upper surface of the bottom groove (1); the bottom groove 1 includes a front side plate (3), a rear side plate (4) and at least two bottom side plates (5), wherein the bottom side plates (5) fix the front side plate (3) and the rear side plate (4) as a whole, and the bottom side plates (5) are fixed side by side at intervals to form a heat dissipation channel. The cable tray of the above utility model has better heat dissipation performance and is more convenient to install and disassemble.

[0004] However, this patent only dissipates heat through heat dissipation channels, which makes it difficult to avoid the problem of low heat dissipation capacity at the bend.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the Invention

[0006] The purpose of this invention is to provide an adjustable cable tray that can effectively solve the above-mentioned technical problems.

[0007] To achieve the objectives of this invention, the following technical solution is adopted:

[0008] An adjustable cable tray includes: a cable limiting component;

[0009] The cable limiting component includes: a cooling chamber installed at the bottom of the inner side of the cable tray, a limiting block slidably installed on the top of the cooling chamber, and an adjusting column detachably installed vertically between the cooling chamber and the limiting block; the interior of the cooling chamber has a liquid channel;

[0010] The lateral distance between the cables is adjusted by adjusting the distance between two adjacent cooling chambers; the size of the cooling chamber or the height of the cable is adjusted by adjusting the height of the adjusting column.

[0011] Furthermore, the top of the cable tray is provided with heat dissipation holes, and a shielding component is also provided to block the heat dissipation holes;

[0012] A reset component is connected between the shielding component and the cable tray.

[0013] Furthermore, a collection and cleaning assembly is installed on the side wall of the cable tray, the collection and cleaning assembly including: a support rod installed on the top of the cable tray, an adsorption expansion body installed on the support rod, and a water collection plate rotatably installed on the top of the cable tray;

[0014] The adsorption expansion body is located between the shielding member and the water collection plate.

[0015] Furthermore, the adsorption expansion body includes: a hydrophobic and breathable membrane and an expansion part arranged sequentially from the outside to the inside; an elastic support part is provided inside the expansion part; the expansion part is made of water-absorbing resin and heat-sensitive material arranged sequentially from top to bottom.

[0016] Furthermore, a collection box is provided on the outlet side of the water collection plate;

[0017] A first return spring is installed on the side of the water collection plate near the collection box, and the first return spring is connected to the top of the cable tray.

[0018] A coarse filter screen is provided on the top of the collection box, and one end of the coarse filter screen is rotatably connected to the collection box;

[0019] The coarse filter screen is flexibly connected to the water collection plate.

[0020] Furthermore, a diversion plate is slidably installed inside the collection box. The diversion plate is located below the coarse filter screen and is softly connected to the coarse filter screen.

[0021] Furthermore, the collection box is provided with a liquid outlet channel near the bottom, the liquid outlet channel is located below the diverter plate, and the inlet end of the liquid outlet channel is provided with a fine filter screen;

[0022] A cleaning component is installed on the diverter plate.

[0023] Furthermore, a protective plate is installed on the top of the collection box.

[0024] Compared with the prior art, the present invention has the following beneficial effects: the present invention adjusts the lateral distance between the cables by adjusting the distance between two adjacent cooling chambers; and adjusts the size of the cooling chambers or the height of the cables by adjusting the height of the adjusting column, thereby adjusting the distance between the cables as needed, which is beneficial for heat dissipation at the bend. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0026] Figure 1 This is an isometric view of an adjustable cable tray according to the present invention.

[0027] Figure 2 This is a schematic diagram of the structure of an adjustable cable tray according to the present invention;

[0028] Figure 3 This is a schematic diagram of a collection and cleaning assembly for an adjustable cable tray according to the present invention.

[0029] Figure 4 This is a schematic diagram of the internal structure of a collection box for an adjustable cable tray according to the present invention.

[0030] Figure 5 This is a schematic diagram of a collection and cleaning assembly for an adjustable cable tray according to the present invention.

[0031] Figure 6 This is an exploded schematic diagram of the adsorption expansion body and shielding component of an adjustable cable tray according to the present invention.

[0032] Figure 7 This is a schematic diagram of the internal structure of the adsorption expansion body of an adjustable cable tray according to the present invention.

[0033] In the diagram: 1. First mounting plate; 2. Second mounting plate; 3. First cover plate; 4. Second cover plate; 5. Third cover plate; 6. First vertical plate; 7. Cable limiting component; 71. Cooling chamber; 72. Limiting block; 8. Collection and cleaning assembly; 81. Adsorption expansion body; 82. Water collection plate; 83. Collection box; 84. Support rod; 831. Coarse filter screen; 832. Diverter plate; 833. Fine filter screen; 834. Cleaning component; 835. Liquid outlet channel ; 836, Protective plate; 837, Connector; 838, Second return spring; 841, Connecting structure; 51, Heat dissipation hole; 52, Shielding component; 53, Returning component; 811, First spring; 812, Hydrophobic breathable membrane; 813, Expansion part; 814, Elastic support part; 8131, Water-absorbing resin; 8132, Thermosensitive material; 8311, First hinge rod; 8312, Second hinge rod; 821, First return spring. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0035] In the description of this invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0036] like Figures 1 to 7 As shown, this invention relates to an adjustable cable tray, comprising: a straight-through cable tray and a right-angle cable tray; the right-angle cable tray includes: a first mounting plate 1, which is n-shaped and forms a snap-fit ​​structure; a second mounting plate 2 connected to the end of the first mounting plate 1, the second mounting plate 2 forming a first right angle when connected to the first mounting plate 1; a first cover plate 3 is snapped into the first mounting plate 1, the first cover plate 3 being U-shaped and matching the snap-fit ​​structure formed with the first mounting plate 1, so that the first cover plate 3 can be tightly connected to the first mounting plate 1; the U-shaped end of the first cover plate 3 is bent inward to form a reinforcing structure.

[0037] The second mounting plate 2 has a second cover plate 4 snapped into it. The first mounting plate 1 and the second mounting plate 2 have the same structure, and the first cover plate 3 and the second cover plate 4 have the same structure. These will not be described in detail here.

[0038] The first mounting plate 1 and the second mounting plate 2 are connected to a third cover plate 5 at one end. The third cover plate 5 is in the shape of a right trapezoid, and its right angle part matches the first right angle. The end of the third cover plate 5 is connected to a first vertical plate 6, and the bottom of the first vertical plate 6 is connected to a fourth cover plate. The fourth cover plate has the same structure as the third cover plate 5.

[0039] During installation, first install the first mounting plate 1 and the second mounting plate 2, then install the first cover plate 3, the third cover plate 5, the first vertical plate 6, the fourth cover plate, and the second cover plate 4 in sequence to complete the installation of the right-angle cable tray. After the right-angle cable tray is installed, a through-type installation cavity for installing cables is formed inside.

[0040] A cable limiting component 7 is installed at the bottom of the mounting cavity. The cable limiting component 7 includes: a cooling chamber 71 installed at the bottom of the inner side of the mounting cavity, a limiting block 72 slidably installed on the top of the cooling chamber 71, and an adjusting column vertically detachably installed between the cooling chamber 71 and the limiting block 72. The interior of the cooling chamber 71 is hollow, forming a liquid flow channel. The bottom end of the limiting block 72 is located inside the cooling chamber 71. An arc-shaped groove is provided on the top of the limiting block 72 for limiting the cable. A connecting through hole is provided on the arc-shaped groove along the horizontal direction for cooperating with a U-shaped clamp to fix the cable. The adjusting column consists of two round rods that are threaded together. The height of the adjusting column can be adjusted by rotating the round rods.

[0041] During installation, the distance between two adjacent cooling chambers 71 can be adjusted, thereby adjusting the distance between two adjacent limiting blocks 72, which in turn adjusts the lateral distance between cables. The size of the cooling chamber 71 or the height of the cable can be adjusted by adjusting the height of the adjusting column. For example, when the cables to be installed are thicker or denser, the distance between two adjacent cables can be adjusted to make them move further apart in the horizontal direction, thereby increasing the heat dissipation gap. The height of the adjusting column can also be adjusted so that two adjacent cables can be staggered in the vertical space, thereby further increasing the heat dissipation gap and facilitating heat dissipation at the bends of the right-angle cable tray. In addition, when power cables and control signal cables are arranged in a staggered manner, the increased vertical spacing can reduce the electromagnetic coupling effect. With the help of metal partitions, an electromagnetic shielding zone can be constructed. For example, if three-phase cables are arranged in a spatially staggered triangular arrangement, the magnetic field balance can be optimized and eddy current losses can be reduced.

[0042] The first mounting plate 1 has several heat dissipation vents on its side wall; the third cover plate 5 has heat dissipation holes 51, and a shielding member 52 is provided above the heat dissipation holes 51 to block them. The bottom of the shielding member 52 matches the heat dissipation holes 51, and the top of the shielding member 52 is larger than the bottom. A reset member 53 is provided between the shielding member 52 and the third cover plate 5. The reset member 53 is used to move the third cover plate 5 and the shielding member 52 away from each other. In its natural state, the reset member 53 supports the shielding member 52, separating the shielding member 52 from the heat dissipation holes 51, thereby allowing heat dissipation. The reset member 53 can be a spring. A collection and cleaning assembly 8 is installed on the side wall of the first vertical plate 6.

[0043] The collection and cleaning assembly 8 includes: a support rod 84 installed on the top of the third cover plate 5; an adsorption expansion body 81 installed on the support rod 84; the adsorption expansion body 81 is located above the shield 52; there are four support rods 84 arranged around the adsorption expansion body 81; a mounting block is provided on the side of the third cover plate 5 near the first vertical plate 6; a water collection plate 82 is rotatably mounted on the mounting block; the side of the water collection plate 82 near the adsorption expansion body 81 is located above the adsorption expansion body 81; the top of the water collection plate 82 is gradually recessed from the outside to the inside to form a water guide groove, which is used to guide rainwater to the lower end of the water collection plate 82; a connecting structure 841 is provided on the top of the two support rods 84 near the side of the water collection plate 82; the connecting structure 841 is connected to the bottom of the water collection plate 82; the connecting structure 841 can be a magnet or a common snap-fit ​​structure, which is used to limit the water collection plate 82 in its natural state.

[0044] The outer layer of the adsorbent expansion body 81 is a hydrophobic and breathable membrane 812 (such as polytetrafluoroethylene), and the inner layer is an expansion part 813. An elastic support part 814 is provided inside the expansion part 813. The elastic support part 814 is used to absorb some stress through its own elastic deformation when the expansion part 813 expands, preventing excessive structural deformation or cracking. The expansion part 813 is made of a water-absorbing resin 8131 and a heat-sensitive material 8132 arranged sequentially from top to bottom. The water-absorbing resin 8131 is preferably a highly absorbent resin (such as a sheet-like SAP composite fiber material made of cross-linked sodium polyacrylate, which provides more uniform expansion deformation). The above material has an expansion rate of ≤2 times when the air humidity is ≤50%; an expansion rate of 3-5 times when the air humidity is 50%-80%; and an SAP water absorption and expansion rate of 5-10 times when the air humidity is ≥80%, thus promoting the expansion of the SAP. (The heat dissipation holes are closed by a baffle); the heat-sensitive material 8132 can be a shape memory polymer (such as a sheet material made of Glycerol-based SMP foam, the trigger temperature can be set to 40-50℃ based on requirements, and the volume change is 0.5-1% for every 1℃ increase); the elastic support part 814 can be a silicone corrugated sheet; the breathable membrane only allows gaseous water molecules to pass through, ensuring that the water absorption rate of the adsorption expansion body 81 matches the actual humidity in the environment, avoiding false triggering caused by direct immersion in liquid water, and avoiding impurities (such as silt) that may be carried in the liquid water from clogging the micropores of the adsorption expansion body 81, reducing its breathability and response speed; the water-absorbing resin 8131 can expand in volume after absorbing water and shrink back after drying; a drainage channel is provided on the hydrophobic breathable membrane 812 at the bottom to accelerate the drying and shrinkage speed of the water-absorbing resin 8131.

[0045] In rainy regions of the south, humidity fluctuates frequently. During rainy weather, the air humidity is high (e.g., air humidity ≥ 80% or when in contact with rainwater). The absorbent expansion body 81 absorbs water and expands, pressing the water collection plate 82 and the blocking member 52 on its upper and lower sides respectively. This causes the water collection plate 82 to deflect, separating the support rod 84 from the water collection plate 82, while the blocking member 52 closes the heat dissipation hole 51. When the weather clears up, the water in the absorbent expansion body 81 gradually evaporates, and its volume shrinks. Under the action of the first spring 811, the absorbent expansion body 81 separates from the blocking member 52. The blocking member 52 moves upward under the action of the reset member 53 and no longer closes the heat dissipation hole 51. At the same time, the water collection plate 82 continues to swing under the action of the wind until it returns to its original position when the connecting structure 841 is connected.

[0046] Furthermore, under high summer temperatures, the external humidity may not be high. If the heat dissipation hole 51 is still sealed at this time, the internal temperature of the cable tray may become too high. Therefore, under high temperature conditions, the heat-sensitive material 8132 expands, replacing the expansion of the water-absorbing resin 8131. Specifically, the surface temperature of the cable tray in summer is about 38℃–50℃ (5℃–15℃ higher than the ambient temperature). In high humidity environments (air humidity ≥80% or rain): the absorbent expander 81 absorbs water and expands, closing the heat dissipation hole 51; in high temperature and low humidity environments (temperature ≥50℃ and air humidity <60%): the heat-sensitive material 8132 expands when heated, closing the heat dissipation hole 51; in high temperature and high humidity environments (temperature ≥50℃ and humidity ≥80%): the dual materials work together to enhance the reliability of closing the heat dissipation hole 51.

[0047] A collection box 83 is provided on the outlet side of the water collection plate 82 (the side closest to the first vertical plate 6), and the collection box 83 is installed on the first vertical plate 6. The collection box 83 is generally rectangular and has an opening at the top for water inlet. A discharge chute is provided on the side away from the first vertical plate 6 to facilitate the discharge of impurities. A first return spring 821 is installed on the side of the water collection plate 82 near the collection box 83, and the first return spring 821 is connected to the third cover plate 5. A protective plate 836 is installed on the top of the collection box 83 to reduce the amount of debris falling into the collection box 83. A coarse filter screen 831 is provided below the protective plate 836 to perform preliminary filtration of rainwater and filter out large particles of impurities.

[0048] The coarse filter screen 831 is rotatably connected to the collection box 83 at one end away from the water collection plate 82. The top of the other end (the movable end) is hinged to a first hinge rod 8311, which is hinged to a second hinge rod 8312. The other end of the second hinge rod 8312 is hinged to the bottom of the water collection plate 82, allowing the end of the coarse filter screen 831 near the water collection plate 82 to swing downwards. When the water collection plate 82 is connected to the connecting structure 841, the first hinge rod 8311 and the second hinge rod 8312 are straightened, at which point the coarse filter... The screen 831 cannot swing. When the water collecting plate 82 is separated from the connecting structure 841, there is a movement gap between the first hinge rod 8311 and the second hinge rod 8312. As a result, when the water flows from the water collecting plate 82 onto the coarse filter screen 831, the water flow will cause the coarse filter screen 831 to swing slightly. The dynamic swing of the coarse filter screen 831 can avoid the accumulation of impurities in local areas and improve the uniformity of filtration. At the same time, the direction of water flow is coordinated with the swing direction of the coarse filter screen 831, which enhances the impurity removal effect and makes it easier for impurities to fall off the surface of the coarse filter screen 831.

[0049] Inside the collection box 83, a diverter plate 832 is also slidably installed. The diverter plate 832 is located below the coarse filter screen 831. A second return spring 838 is connected to the bottom of the diverter plate 832. The diverter plate 832 and the coarse filter screen 831 are flexibly connected by a connector 837, so that when the diverter plate 832 diverts the flow, it can drive the coarse filter screen 831 to swing.

[0050] A liquid outlet channel 835 is provided near the bottom of the collection box 83. The liquid outlet channel 835 is located below the diversion plate 832. A fine filter screen 833 is provided at the inlet end of the liquid outlet channel 835 for further filtration of rainwater. The outlet end of the liquid outlet channel 835 is connected to the cooling chamber 71. After being filtered again by the coarse filter screen 831 and the washing filter screen, the rainwater flows into the cooling chamber 71 from the outlet end. Cleaning components 834 are installed on the upper and lower sides of the diversion plate 832 respectively. The cleaning side of the cleaning component 834 faces the fine filter screen 833, so that the cleaning component 834 can clean the fine filter screen 833. When cleaning downwards, the impurities that are cleaned out enter the lower part of the diversion plate 832. The lower part of the diversion plate 832 is a cavity, which is used as a sewage outlet. The liquid outlet channel 835 can be set as one, located in the middle position near the bottom of the collection box 83, or it can be set as two, symmetrically installed on the left and right sides of the collection box 83.

[0051] When the air humidity reaches the threshold, the adsorption expansion body 81 absorbs water and expands, causing the shielding part 52 to cover the heat dissipation hole 51. At the same time, the adsorption expansion body 81 causes the water collection plate 82 to deflect, causing the support rod 84 to separate from the water collection plate 82. Then, the rainwater on the water collection plate 82 flows to the collection box 83. The water flows through the coarse filter screen 831 to remove large particles of impurities. Then, the water flows to the diversion plate 832 and accumulates, causing the diversion plate 832 to slide downwards. The water flows through the space between the diversion plate 832 and the collection box 83. During the intermittent flow, the water flows towards the inlet end of the outlet channel 835; at this time, the fine filter screen 833 filters the water flow again, removing tiny particles and impurities; simultaneously, since the cleaning component 834 is installed on the diverter plate 832, as the diverter plate 832 slides down intermittently, the cleaning component 834 cleans the fine filter screen 833, preventing the fine filter screen 833 from clogging, ensuring that the outlet channel 835 can continuously and stably deliver the clean water filtered by the fine filter screen 833 to the cooling chamber 71, thereby enabling... Evaporative cooling is achieved inside the cable tray to cool the cables. Simultaneously, the diverter plate 832 causes the coarse filter screen 831 to swing downwards, which in turn causes the water collection plate 82 to swing further downwards. When the diverter plate 832 slides upwards, it temporarily blocks the water flow to the inlet of the outlet channel 835, causing water to accumulate in the collection tank 83 in a short time. This intermittent drainage method can more rationally control the amount of water entering the cooling chamber 71, avoiding excessive or insufficient water flow in a short period of time. At the same time, when the diverter plate 832 slides upwards, the water collection plate 82 and the coarse filter screen 831 return to their original positions. Through the up-and-down sliding of the diverter plate 832, not only can intermittent drainage be achieved, but the fine filter screen 833 can also be cleaned. It can also cause the water collection plate 82 to swing, thereby repeatedly spraying rainwater onto the coarse filter screen 831, preventing rainwater from washing the same position of the coarse filter screen 831 for a long time. It can also cause the coarse filter screen 831 to swing, making it easier for impurities to fall off the surface of the coarse filter screen 831.

[0052] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0053] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An adjustable cable tray for wiring, characterized in that, include: Cable trays and cable limiting components; The cable limiting component includes: a cooling chamber installed at the bottom of the inner side of the cable tray, a limiting block slidably installed on the top of the cooling chamber, and an adjusting column detachably installed vertically between the cooling chamber and the limiting block; the interior of the cooling chamber has a liquid channel; The top of the limiting block has an arc-shaped groove for limiting the cable; The lateral distance between the cables is adjusted by adjusting the distance between two adjacent cooling chambers; the height of the cables is adjusted by adjusting the height of the adjusting column. A water collection and cleaning assembly is installed on the side wall of the cable tray, the water collection and cleaning assembly including: a water collection plate rotatably installed on the top of the cable tray; A collection box is provided on the outlet side of the water collection plate; A first return spring is installed on the side of the water collection plate near the collection box, and the first return spring is connected to the top of the cable tray. A coarse filter screen is provided on the top of the collection box, and the end of the coarse filter screen away from the water collection plate is rotatably connected to the collection box; The coarse filter screen is flexibly connected to the water collection plate at one end near the water collection plate; The inside of the collection box is also slidably installed a diversion plate, which is located below the coarse filter screen and is softly connected to the coarse filter screen. A second return spring is connected to the bottom of the diversion plate. The collection box has a liquid outlet channel near the bottom. The outlet end of the liquid outlet channel is connected to the cooling chamber. The liquid outlet channel is located below the diversion plate. When the water flows to the diversion plate, it accumulates and causes the diversion plate to slide downward and drive the coarse filter screen to swing downward. The water flows through the gap between the diversion plate and the collection box to the inlet end of the liquid outlet channel. Then the diversion plate slides upward and resets, and the water collection plate and coarse filter screen also reset upward.

2. The adjustable cable tray as described in claim 1, characterized in that, The top of the cable tray is provided with heat dissipation holes, and a shielding component is also provided to block the heat dissipation holes; A reset component is connected between the shielding component and the cable tray.

3. The adjustable cable tray as described in claim 2, characterized in that, The collection and cleaning assembly further includes: a support rod installed on the top of the cable tray, and an adsorption expansion body installed on the support rod; The adsorption expansion body is located between the shielding member and the water collection plate.

4. The adjustable cable tray as described in claim 3, characterized in that, The adsorption expansion body includes: a hydrophobic and breathable membrane and an expansion part arranged sequentially from the outside to the inside; an elastic support part is provided inside the expansion part; the expansion part is made of water-absorbing resin and heat-sensitive material arranged sequentially from top to bottom.

5. The adjustable cable tray as described in claim 1, characterized in that, A fine filter screen is provided at the water inlet end of the liquid outlet channel; The flow divider plate is equipped with a cleaning component for cleaning the fine filter screen.

6. The adjustable cable tray as described in claim 1, characterized in that, The top of the collection box is equipped with a protective plate.

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