Fireproof groove type cable bridge

Abstract

The utility model relates to the technical field of cable bridges, and discloses a fire-resistant groove type cable bridge which comprises a bridge body, a top cover is arranged on the top of the bridge body, a plurality of cables are arranged in the bridge body, and a supporting protection assembly used for supporting and separating the cables is installed in the bridge body. The connecting assembly is used for rapidly connecting the frame body and the top cover and installed on the top of the inner wall of the frame body, the connecting assembly comprises a shell, a positioning pin is slidably connected into the shell, a sliding block is fixedly connected to one side of the outer portion of the positioning pin, and a clamping plate used for limiting movement of the positioning pin is arranged on the top of the sliding block. The other side of the outer portion of the positioning pin is sleeved with a spring, and the spring is located between the sliding block and the inner wall of the shell. According to the utility model, the rapid assembly of the frame body and the top cover is realized, and meanwhile, by means of the cooperation of the clamping plate and the positioning pin, it is ensured that the cable can be more conveniently disassembled when the cable in the bridge is disassembled and overhauled, so that the convenience of the bridge during assembly and maintenance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable trays, in particular to a fire-resistant trough-type cable tray. Background Technique

[0002] A fire-resistant trough-type cable tray is a device used for laying and protecting cables, mainly used in buildings, factories and power systems to ensure the safe and stable operation of cables. The cable tray usually consists of a frame body, a top cover, brackets and fixing parts, etc. Among them, the frame body is used to support and guide the cables, and the top cover is used to protect the internal cables from the external environment. In order to meet the fire protection requirements, the materials of the cable tray are usually made of high-temperature resistant and flame-retardant metals or non-metals. This device is widely used in occasions that require fire protection measures, such as underground passages, tunnels, building electrical equipment rooms, etc.

[0003] However, traditional cable trays mostly use bolts or welding methods to fix the frame body and the top cover, resulting in the need to rely on the auxiliary cooperation of tools during the assembly and disassembly and maintenance of the cable tray. The operation is complex, time-consuming and laborious, and it is impossible to achieve rapid assembly and disassembly, which is not conducive to later maintenance and repair. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a fire-resistant trough-type cable tray, aiming to improve the problems in the prior art that during the assembly, disassembly and maintenance of the cable tray, it is necessary to rely on the auxiliary cooperation of tools, the operation is complex, time-consuming and laborious, and it is impossible to achieve rapid assembly and disassembly, which is not conducive to later maintenance and repair.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A fire-resistant trough-type cable tray, comprising:

[0006] A frame body, a top cover is provided on the top of the frame body, a plurality of cables are provided inside the frame body, and a support and protection component for supporting and separating the cables is installed inside the frame body;

[0007] A connection component for quickly connecting the frame body and the top cover, which is installed on the top inner wall of the frame body. The connection component includes a housing, a positioning pin is slidably connected inside the housing, a slider is fixedly connected to one side of the outer part of the positioning pin, a clamping plate for restricting the movement of the positioning pin is provided on the top of the slider, and a spring is sleeved on the other side of the outer part of the positioning pin. The spring is located between the slider and the inner wall of the housing.

[0008] As a further description of the above technical solution:

[0009] The support and protection component includes a bottom partition frame, the outer side of the bottom partition frame is assembled on the inner bottom wall of the frame body, a middle partition frame, a top partition frame and a sealing top plate are sequentially arranged above the bottom partition frame, and support columns for partitioning are arranged between the bottom partition frame, the middle partition frame, the top partition frame and the sealing top plate.

[0010] As a further description of the above technical solution:

[0011] Two installation openings are formed on both sides of the bottom partition frame, the middle partition frame, the top partition frame and the sealing top plate, and the width of the installation opening is adapted to the width of the housing.

[0012] As a further description of the above technical solution:

[0013] A plurality of side ventilation openings distributed in a rectangular array are formed on both sides of the frame body, and the sides of the bottom partition frame, the middle partition frame, the top partition frame and the sealing top plate are flush with the side ventilation openings.

[0014] As a further description of the above technical solution:

[0015] The bottoms of the bottom partition frame, the middle partition frame, the top partition frame and the sealing top plate are fixedly connected to the tops of the support columns, and the cross-sections of the bottom partition frame, the middle partition frame, the top partition frame and the sealing top plate are all corrugated.

[0016] As a further description of the above technical solution:

[0017] A V-shaped notch is formed at the bottom of the support column, and the V-shaped notch is engaged with the tops of the corrugated structures on the bottom partition frame, the middle partition frame, the top partition frame and the sealing top plate.

[0018] As a further description of the above technical solution:

[0019] One end of the positioning pin penetrates through the frame body and is inserted into the interior of the top cover, and the outer side of the slider is slidably connected to the interior of the housing.

[0020] As a further description of the above technical solution:

[0021] The outer side of the clamping plate is slidably connected to the top of the housing, and the top of the clamping plate abuts against the top end of the inner bottom wall of the frame body.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the present utility model, the elastic force exerted by the spring on the slider enables the slider to drive the positioning pin to pass through the inside of the frame body and be inserted into the inner side of the top cover, realizing the rapid assembly of the frame body and the top cover. At the same time, with the cooperation of the clamping plate and the positioning pin, it is ensured that when disassembling and overhauling the cables inside the cable tray, it can be disassembled more conveniently, thereby improving the convenience during the assembly and maintenance of the cable tray.

[0024] 2. In the present utility model, the partition structure composed of the bottom partition frame, the middle partition frame, the top partition frame and the sealing top plate distributed vertically ensures that the cables inside the cable tray can be separated and laid according to the corresponding areas and high and low voltage conditions, avoiding the intersection and entanglement of the cables. The wiring is neater and more convenient for later maintenance. At the same time, in cooperation with the side ventilation openings on the side and the support columns inside, the formed air duct structure ensures the stability of the ventilation performance inside the cable tray and avoids excessive temperature inside the cable tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional view of the fire-resistant trough-type cable tray proposed by the present utility model;

[0026] Figure 2 is Figure 1 the enlarged view at A in

[0027] Figure 3 is a schematic diagram of the internal structure of the shell of the fire-resistant trough-type cable tray proposed by the present utility model;

[0028] Figure 4 is the front view of the fire-resistant trough-type cable tray proposed by the present utility model;

[0029] Figure 5 is a partial three-dimensional explosion diagram of the fire-resistant trough-type cable tray proposed by the present utility model.

[0030] LEGEND DESCRIPTION:

[0031] 1. Frame body; 2. Top cover; 3. Shell; 4. Positioning pin; 5. Slider; 6. Clamping plate; 7. Spring; 8. Bottom partition frame; 9. Middle partition frame; 10. Top partition frame; 11. Sealing top plate; 12. Support column; 13. Cable; 14. Side ventilation opening; 15. Installation opening. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] Reference Figures 1 - 3 The utility model provides an embodiment: a fire-resistant trough-type cable tray, comprising:

[0034] The frame 1 is provided with a top cover 2 on the top of the frame 1. The frame 1 and the top cover 2 are the main structures of the bridge, which are used to protect the cables laid inside. At the same time, the materials used for (1) and (2) are both polymer glass fiber reinforced plastics, so that the overall structure of the bridge has sufficient structural strength and excellent fire resistance. A plurality of cables 13 are arranged inside the frame 1, and a supporting and protective component for supporting and separating the cables 13 is installed inside the frame 1;

[0035] Reference Figures 1 - 3 , a connecting component is used to quickly connect the frame 1 and the top cover 2, which is installed on the top of the inner wall of the frame 1. The connecting component includes a shell 3, and a positioning pin 4 is slidably connected inside the shell 3. The frame 1 and the top cover 2 are connected by the positioning pin 4, so that the frame 1 and the top cover 2 can be quickly installed, thereby improving the efficiency of the bridge installation and construction. A slider 5 is fixedly connected to one side of the outside of the positioning pin 4. A clamping plate 6 for limiting the movement of the positioning pin 4 is provided on the top of the slider 5. A spring 7 is sleeved on the other side of the outside of the positioning pin 4. The spring 7 is located between the slider 5 and the inner wall of the shell 3. The spring 7 is in a compressed state, so that the spring 7 will always apply a thrust to the slider 5, tightly holding the slider 5, and then the slider 5 will drive the positioning pin 4 to be firmly inserted into the inside of the top cover 2, connecting the top cover 2 and the frame 1, and preventing the top cover 2 and the frame 1 from loosening. One end of the locating pin 4 passes through the frame 1 and is inserted into the interior of the top cover 2. The outer side of the slider 5 is slidably connected to the interior of the shell 3, so that the locating pin 4 can lock the top cover 2 to the top of the frame 1 under the restraint of the frame 1, realizing quick installation of the bridge. The outer side of the clamping plate 6 is slidably connected to the top of the shell 3, and the top of the clamping plate 6 abuts against the top of the inner bottom wall of the frame 1. The structure of the top of the frame 1 is curved inward, which can restrain the clamping plate 6 to the top of the shell 3 and prevent it from detaching from the top of the shell 3.

[0036] Reference Figure 1 、 Figure 4 and Figure 5, the support and protection component includes a bottom partition frame 8, the outside of the bottom partition frame 8 is assembled on the inner bottom wall of the frame body 1, a middle partition frame 9, a top partition frame 10 and a sealing top plate 11 are successively arranged above the bottom partition frame 8, and support columns 12 for partitioning are arranged between the bottom partition frame 8, the middle partition frame 9, the top partition frame 10 and the sealing top plate 11. Through the partition structure composed of the bottom partition frame 8, the middle partition frame 9, the top partition frame 10 and the sealing top plate 11, it can effectively ensure that cables for different regional uses are partitioned and laid, avoid the disordered distribution between high-voltage and low-voltage cables, ensure that the cables 13 in each area of the building can be separately laid inside the cable tray, and ensure the neatness of the cable 13 distribution inside the cable tray. Two installation openings 15 are opened on both sides of the bottom partition frame 8, the middle partition frame 9, the top partition frame 10 and the sealing top plate 11, and the width of the installation opening 15 is adapted to the width of the housing 3. Through the opened installation openings 15, it can be ensured that different partition plates can be inserted into the inside of the frame body 1 without being blocked by the housing 3 located at the top of the frame body 1, making the assembly of the internal structure of the cable tray more convenient and fast. A plurality of side ventilation openings 14 distributed in a rectangular array are opened on both sides of the frame body 1, and the sides of the bottom partition frame 8, the middle partition frame 9, the top partition frame 10 and the sealing top plate 11 are flush with the side ventilation openings 14. Through the side ventilation openings 14, the ventilation performance inside the cable tray can be increased, so that the cables inside the cable tray can maintain a stable working temperature. The bottoms of the bottom partition frame 8, the middle partition frame 9, the top partition frame 10 and the sealing top plate 11 are fixedly connected to the tops of the support columns 12, and the cross-sections of the bottom partition frame 8, the middle partition frame 9, the top partition frame 10 and the sealing top plate 11 are all corrugated. By supporting between each partition plate through the support columns 12, it is ensured that there is enough gap between each layer of partition plates for air circulation, further ensuring the stability of the temperature inside the cable tray. A V-shaped notch is opened at the bottom of the support column 12, and the V-shaped notch is engaged with the tops of the corrugated structures on the bottom partition frame 8, the middle partition frame 9, the top partition frame 10 and the sealing top plate 11. Through the snap-fit installation between the support column 12 and each partition plate, when assembling the internal structure of the cable tray, it can be more convenient and efficient, and at the same time ensure the stability of the internal structure of the cable tray after assembly.

[0037] Working principle: When assembling the bridge, first place the bottom partition frame 8 into the frame body 1, then lay the cables 13 of the corresponding area on the bottom partition frame 8, and separate the cables through the corrugated structure. Then place the middle partition frame 9 into the frame body 1, and support it on the top of the bottom partition frame 8 through the support column 12 at the bottom. Then lay the cables 13 of another area in the corrugated structure on the top of the middle partition frame 9. Then install the top partition frame 10 on the top of the middle partition frame 9 in the same way, and lay the cables 13 of the corresponding area on the top partition frame 10. Finally, cover the sealing top plate 11 on the top of the top partition frame 10 to complete the closure of the top structure. All cables 13 can be stuck in the grooves of the corresponding corrugated structure, so that each cable 13 will be separated, avoiding the cables from getting tangled and messy inside the bridge. At the same time, the supporting columns 12 support and form a ventilation structure between the bottom partition frame 8, the middle partition frame 9, the top partition frame 10 and the sealing top plate 11, and cooperate with the side vents 14 opened correspondingly on the outside of the frame body 1, so that the interior of the entire bridge can achieve effective ventilation, thereby improving the heat dissipation efficiency inside the bridge.

[0038] Finally, cover the top cover 2 on the top of the frame 1, and pull the positioning pin 4 outward at the same time, so that the positioning pin 4 shrinks from the inside of the frame 1 to the inside of the shell 3. At the same time, the card plate 6 on the top of the shell 3 will fall down and be inserted into the inside of the shell 3 when the slider 5 moves away with the positioning pin 4. At the same time, the end face of the card plate 6 will block the end of the positioning pin 4, so that when the worker releases the positioning pin 4, the compressed spring 7 cannot push the slider 5 to drive the positioning pin 4 to reset. Here, the top cover 2 can be completely assembled on the top of the frame 1, and then the card plate 6 is pushed upward to disengage it from the inside of the shell 3. When the card plate 6 is disengaged from the end position of the positioning pin 4, the compressed spring 7 can push the slider 5 to drive the positioning pin 4 to reset, so that the positioning pin 4 will pass through the inside of the frame 1 and be inserted into the hole on the inner side of the top cover 2, realizing the rapid connection and assembly between the frame 1 and the top cover 2.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Fire-resistant trough cable tray, characterized in that, Comprising: A frame body (1), a top cover (2) is provided at the top of the frame body (1), a plurality of cables (13) are provided inside the frame body (1), and a support and protection assembly for supporting and separating the cables (13) is installed inside the frame body (1); A connection assembly for quickly connecting the frame body (1) and the top cover (2), which is installed at the top of the inner wall of the frame body (1). The connection assembly includes a housing (3), a positioning pin (4) is slidably connected inside the housing (3), a slider (5) is fixedly connected to one side of the outer portion of the positioning pin (4), a clamping plate (6) for restricting the movement of the positioning pin (4) is provided at the top of the slider (5), a spring (7) is sleeved on the other side of the outer portion of the positioning pin (4), and the spring (7) is located between the slider (5) and the inner wall of the housing (3).

2. The fire-resistant trough cable tray according to claim 1, wherein: The support and protection assembly includes a bottom partition frame (8), the outer side of the bottom partition frame (8) is assembled on the inner bottom wall of the frame body (1), a middle partition frame (9), a top partition frame (10) and a sealing top plate (11) are sequentially provided above the bottom partition frame (8), and support columns (12) for separation are provided between the bottom partition frame (8), the middle partition frame (9), the top partition frame (10) and the sealing top plate (11).

3. The fire-resistant trough cable tray according to claim 2, wherein: Two mounting openings (15) are formed on both sides of the bottom partition frame (8), the middle partition frame (9), the top partition frame (10) and the sealing top plate (11), and the width of the mounting opening (15) is adapted to the width of the housing (3).

4. The fire-resistant trough cable tray according to claim 2, wherein: A plurality of side ventilation openings (14) distributed in a rectangular array are formed on both sides of the frame body (1), and the sides of the bottom partition frame (8), the middle partition frame (9), the top partition frame (10) and the sealing top plate (11) are flush with the side ventilation openings (14).

5. The fire-resistant trough cable tray according to claim 2, wherein: The bottoms of the bottom partition frame (8), the middle partition frame (9), the top partition frame (10) and the sealing top plate (11) are fixedly connected to the tops of the support columns (12), and the cross-sections of the bottom partition frame (8), the middle partition frame (9), the top partition frame (10) and the sealing top plate (11) are all corrugated.

6. The fire-resistant trough cable tray according to claim 5, wherein: A V-shaped notch is formed at the bottom of the support column (12), and the V-shaped notch is engaged with the tops of the corrugated structures on the bottom partition frame (8), the middle partition frame (9), the top partition frame (10) and the sealing top plate (11).

7. The fire-resistant trough cable tray according to claim 1, characterized in that: One end of the positioning pin (4) penetrates through the frame body (1) and is inserted into the inside of the top cover (2), and the outside of the slider (5) is slidably connected inside the housing (3).

8. The fire-resistant trough cable tray according to claim 1, wherein: The outside of the clamping plate (6) is slidably connected to the top of the housing (3), and the top of the clamping plate (6) abuts against the top end of the inner bottom wall of the frame body (1).

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