A type of waterproof frame with side perforation for cable trays

Abstract

This utility model discloses a waterproof frame with side perforations for cable trays, including a housing with an opening and a subframe. A waterproof frame is installed inside the subframe, and a cable tray covered with insulation cotton is placed inside the waterproof frame. The waterproof frame includes a top plate, a bottom plate, side plates on both sides of the top and bottom plates, and a cable tray installation channel formed therein. The cable tray installation channel has an inclined section near the outside of the housing and a horizontal section near the inside. The inclined section is inclined upwards, and the horizontal section is horizontal, located at the upper end of the inclined section. Above and below the cable tray installation channel on the outer wall of the subframe are upward-folded edges and downward-folded edges, respectively. These edges form upper and lower grooves with the side plates, top plate, or bottom plate, respectively. Both grooves are fully welded to the subframe. Inside the housing, corresponding upper and lower metal plates are fully welded to the subframe at the upper and lower edges of the cable tray installation channel. This utility model can prevent rain and cold bridging of the cable tray.

Description

Technical Field

[0001] This utility model relates to a waterproof frame, and more particularly to a waterproof frame with side perforations for cable trays. Background Technology

[0002] Traditional rain covers only cover the external openings of the enclosure, allowing rainwater to backflow along the cable tray surface into the gap between the cover and the enclosure. Furthermore, the metal pipes directly connect the inside and outside of the enclosure, creating a heat conduction path. Actual measurements show that cold bridge heat loss accounts for more than 15%. Existing rain covers use external mounting types, which have assembly gaps between the cover and the enclosure, resulting in a water seepage rate of >5% during heavy rain. Alternatively, flange connections are used without insulation material, leading to condensation inside the enclosure due to cold bridges. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art by providing a waterproof frame with side perforations for cable trays, which solves the problems of rainwater flowing back into the box along the cable tray and the lack of blockage of cold bridges.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a waterproof cable tray frame with side perforation, comprising a housing, an opening in the housing, a sub-frame within the opening, a waterproof frame within the sub-frame, and a cable tray externally covered with insulation cotton within the waterproof frame. The waterproof frame includes a top plate, a bottom plate, and side plates respectively disposed on both sides of the top and bottom plates. A cable tray installation channel is formed between the top plate, the bottom plate, and the two side plates. The cable tray installation channel has an inclined portion near the outside of the housing and a horizontal portion near the inside of the housing. The inclined portion is inclined upwards, and the horizontal portion is horizontal. The structure is configured such that the horizontal part is located at the upper end of the inclined part. An inverted L-shaped upward folding edge is provided above the cable tray installation channel on the outer side wall of the subframe, and an L-shaped downward folding edge is provided below. The side plates and top plates on both sides of the cable tray installation channel form an upper groove with the upward folding edge, and the side plates and bottom plates on both sides of the cable tray installation channel form a lower groove with the downward folding edge. The periphery of the upper and lower grooves of the waterproof frame is fixedly connected to the side wall of the subframe located outside the box body by full welding. The upper and lower metal plates on the side wall inside the box body located at the upper and lower edges of the cable tray installation channel are respectively fully welded to the subframe.

[0005] Furthermore, a silicone weather-resistant adhesive is provided between the waterproof frame and the thermal insulation cotton, and the silicone weather-resistant adhesive has a filling rate of ≥95%.

[0006] Furthermore, the space between the upper groove, the subframe, the top plate, and the upper metal plate forms an upper cavity, and the space between the lower groove, the subframe, the bottom plate, and the lower metal plate forms a lower cavity. Both the upper cavity and the lower cavity are filled with foaming agent.

[0007] Furthermore, the fully welded seam is coated with a zinc-chromium coating both inside and out.

[0008] Furthermore, the inclined portion of the cable tray installation channel has an upward tilt angle of 60°.

[0009] The beneficial effects of the above-mentioned structure are as follows: The cable tray side-perforated waterproof frame provided by the present invention, by setting the cable tray installation channel inclined upward and covering the outside of the cable tray with thermal insulation cotton, can prevent rainwater from flowing back into the box along the cable tray. The thermal insulation cotton blocks heat conduction, reducing cold bridge heat loss by 90%, and realizing the dual functions of rainproofing and cold bridge blocking at the opening of the cable tray. Attached Figure Description

[0010] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0011] Figure 1 This is a schematic diagram of the overall structure of the perforated waterproof frame for cable trays described in this utility model.

[0012] Figure 2 This is a cross-sectional view of the perforated waterproof frame for the cable tray described in this utility model.

[0013] Figure 3 This is a schematic diagram of the external structure of the auxiliary frame and waterproof frame described in this utility model.

[0014] Figure 4 This is a schematic diagram of the structure of the auxiliary frame and waterproof frame described in this utility model inside the box.

[0015] Figure 5 This is a structural schematic diagram of the waterproof frame described in this utility model.

[0016] The components include: 1. Box body; 2. Subframe; 3. Waterproof frame; 4. Cable tray; 5. Top plate; 6. Bottom plate; 7. Side plates; 8. Cable tray installation channel; 9. Inclined section; 10. Horizontal section; 11. Upward folded edge; 12. Downward folded edge; 13. Upper groove; 14. Lower groove; 15. Upper metal plate; 16. Lower metal plate; 17. Upper cavity; 18. Lower cavity; 19. Insulation cotton. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0018] In response to the need for waterproof frames for cable trays, the designer of this utility model has innovatively proposed a waterproof frame with side perforations for cable trays. This frame can prevent rainwater from flowing back into the box along the cable tray, and the insulation cotton can block heat conduction, reducing cold bridge heat loss by 90%. It achieves the dual functions of rain protection and cold bridge blocking at the opening of the cable tray.

[0019] like Figures 1 to 5 As shown, a waterproof cable tray frame with side perforation includes a housing 1. The housing 1 has an opening, and a subframe 2 is located within the opening. A waterproof frame 3 is located within the subframe 2. A cable tray 4, externally covered with insulation cotton 19, is installed within the waterproof frame 3. The waterproof frame 3 includes a top plate 5, a bottom plate 6, and side plates 7 respectively located on both sides of the top plate 5 and the bottom plate 6. A cable tray installation channel 8 is formed between the top plate 5, the bottom plate 6, and the two side plates 7. The cable tray installation channel 8 has an inclined portion 9 near the outside of the housing 1 and a horizontal portion 10 near the inside of the housing 1. The inclined portion 9 is inclined upwards, and the horizontal portion 10 is horizontal. At the upper end of part 9, an inverted L-shaped upward folding edge 11 is provided above the cable tray installation channel 8 on the outer side wall of the subframe 2, and an L-shaped downward folding edge 12 is provided below. The side plates 7 and top plate 5 on both sides of the cable tray installation channel 8 form an upper groove 13 with the upward folding edge 11, and the side plates 7 and bottom plate 6 on both sides of the cable tray installation channel 8 form a lower groove 14 with the downward folding edge 12. The periphery of the upper groove 13 and lower groove 14 of the waterproof frame 3 are fully welded to the side wall of the subframe 2 located outside the box body 1. Inside the box body 1, the upper and lower edges of the cable tray installation channel 8 are fully welded to the subframe 2 with corresponding upper metal plates 15 and lower metal plates 16 respectively.

[0020] A silicone weather-resistant sealant is provided between the waterproof frame 3 and the thermal insulation cotton 19. The silicone weather-resistant sealant has a filling rate of ≥95%. The thermal insulation cotton 19 insulates the cable tray 4 and is sealed with the silicone weather-resistant sealant to prevent water seepage at the interface.

[0021] The space between the upper groove 13, the subframe 2, the top plate 5 and the upper metal plate 15 forms an upper cavity 17, and the space between the lower groove 14, the subframe 2, the bottom plate 6 and the lower metal plate 16 forms a lower cavity 18. Both the upper cavity 17 and the lower cavity 18 are filled with foaming agent, which can achieve the fixation and heat preservation of the waterproof frame 3.

[0022] The fully welded seam is coated with a zinc-chromium coating on both the inside and outside to prevent the seam from rusting.

[0023] The inclined part 9 of the cable tray installation channel 8 is inclined upward at an angle of 60°, which can effectively prevent rainwater from flowing back into the box 1.

[0024] During installation, the waterproof frame 3 is placed into the subframe 2 through the rectangular hole on the side wall of the housing 1, with the inclined part 9 facing outwards, ensuring that the upper folded edge 11 and the lower folded edge 12 are in close contact with the outer wall of the subframe 2; the outer wall of the subframe 2 is fully welded to the upper folded edge 11 and the lower folded edge 12 respectively, and zinc chromium coating is applied inside and outside the weld for rust prevention; foaming agent is injected into the upper cavity 17 and the lower cavity 18, and after it has fully expanded, the excess part is cut off; the upper metal plate 15 is fully welded to the upper edge of the cable tray installation channel 8 inside the housing 1 and the subframe 2 respectively, sealing the upper cavity 17; the lower metal plate 16 is fully welded to the lower edge of the cable tray installation channel 8 inside the housing 1 and the subframe 2 respectively, sealing the lower cavity 18; the insulation cotton 19 is wrapped around the outside of the cable tray 4, and then the whole thing is placed into the waterproof frame 3. After adjusting the position of the cable tray 4 appropriately, silicone sealant is injected into the gap between the insulation cotton 19 and the waterproof frame 3 to form a seal.

[0025] The beneficial effects of the above-mentioned structure are as follows: The cable tray side-perforated waterproof frame provided by the present invention, by setting the cable tray installation channel inclined upward and covering the outside of the cable tray with thermal insulation cotton, can prevent rainwater from flowing back into the box along the cable tray. The thermal insulation cotton blocks heat conduction, reducing cold bridge heat loss by 90%, and realizing the dual functions of rainproofing and cold bridge blocking at the opening of the cable tray.

[0026] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A waterproof frame with side perforation for cable trays, comprising a housing, wherein the housing has an opening, and a subframe is provided within the opening, characterized in that, The subframe is equipped with a waterproof frame, and the waterproof frame contains a cable tray covered with thermal insulation cotton. The waterproof frame includes a top plate, a bottom plate, and side plates respectively located on both sides of the top and bottom plates. The top plate, bottom plate, and two side plates form a cable tray installation channel. The cable tray installation channel has an inclined section near the outside of the box and a horizontal section near the inside of the box. The inclined section is inclined upwards, and the horizontal section is horizontal, with the horizontal section located at the upper end of the inclined section. The cable tray installation channel on the outer wall of the subframe has an inverted L-shaped upward folded edge above and an L-shaped downward folded edge below. The side plates, top plate, and upward folded edge on both sides of the cable tray installation channel form an upper groove, and the side plates, bottom plate, and downward folded edge on both sides of the cable tray installation channel form a lower groove. The periphery of the upper and lower grooves of the waterproof frame is fully welded to the side wall of the subframe located outside the box. The inner side wall of the box has corresponding upper and lower metal plates fully welded to the subframe at the upper and lower edges of the cable tray installation channel.

2. The waterproof frame with side perforation for cable trays according to claim 1, characterized in that: A silicone weather-resistant adhesive is provided between the waterproof frame and the thermal insulation cotton, and the silicone weather-resistant adhesive has a filling rate of ≥95%.

3. The waterproof frame with side perforation for cable trays according to claim 2, characterized in that: The space between the upper groove, the subframe, the top plate, and the upper metal plate forms an upper cavity, and the space between the lower groove, the subframe, the bottom plate, and the lower metal plate forms a lower cavity. Both the upper cavity and the lower cavity are filled with foaming agent.

4. The waterproof frame with side perforation for cable trays according to claim 1 or 3, characterized in that: The fully welded seam is coated with a zinc-chromium coating both inside and out.

5. The waterproof frame with side perforation for cable trays according to claim 1 or 3, characterized in that: The inclined portion of the cable tray installation channel is tilted upward at an angle of 60°.

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