High-air-tightness cable bridge structure at wall crossing position

Abstract

The utility model relates to the technical field of cable laying, in particular to a through-wall high-airtightness cable bridge structure which comprises a main plate, vertical plates are symmetrically arranged on the two sides of the main plate, a cover plate is detachably arranged on the sides, back on to the main plate, of the two vertical plates, connecting pieces are arranged between the cover plate and the vertical plates, and a wire clamping plate is arranged on the main plate. A plurality of wire clamping grooves used for installing cables are formed in the wire clamping plate in the length direction of the wire clamping plate, a sealing assembly is arranged on the main plate, and the sealing assembly is used for blocking the space defined by the main plate, the vertical plate and the cover plate. The method has the effects of improving the air tightness of the wall body and automatically adjusting the air tightness along with the temperature change.

Description

Technical Field

[0001] The present application relates to the technical field of cable laying, and in particular to a cable tray structure with high airtightness at the wall-passing position. Background Art

[0002] A cable tray is the full name of a rigid structure system composed of straight sections, elbows, accessories, supports and hangers of cable trays or cable ladders, which is a device for carrying and protecting power cables. It can be used for cable wiring inside or outside buildings to facilitate power transmission and distribution. Its main functions are to protect, manage and support cables or optical fibers.

[0003] Chinese Patent with Publication No. CN218887996U discloses a cable tray with adjustable width, including a main board. A main support for adjusting the width of the tray is fixedly installed at the lower end of the main board. An installation groove is provided in the middle of the upper end of the main board, and a partition is slidably installed in the installation groove. The main support includes a first bottom plate and a first side plate, and heat dissipation holes are provided on both the first side plate and the second side plate.

[0004] During the process of cable laying, when the cable needs to pass through a house wall with high airtightness requirements, the heat dissipation holes on the side plates in the above technology will seriously affect the airtightness of the house, which has deficiencies. Summary of the Utility Model

[0005] In order to improve the problem of poor airtightness of the house caused by the cable passing through the wall, the present application provides a cable tray structure with high airtightness at the wall-passing position.

[0006] The cable tray structure with high airtightness at the wall-passing position provided by the present application adopts the following technical solutions:

[0007] A cable tray structure with high airtightness at the wall-passing position includes a main board. Vertical plates are symmetrically arranged on both sides of the main board. A cover plate is detachably arranged on the side of the two vertical plates facing away from the main board. A connecting piece is arranged between the cover plate and the vertical plate. A wire clamping board is arranged on the main board. A plurality of wire clamping grooves for installing cables are arranged along the length direction of the wire clamping board. A sealing assembly is arranged on the main board, and the sealing assembly is used to block the space enclosed by the main board, the vertical plates and the cover plate.

[0008] By adopting the above technical solutions, workers first fixedly install the main board on the wall, then clamp the cable in the wire clamping grooves of the wire clamping board for fixation, then fix the cover plate on the vertical plate through the connecting piece, then block the space enclosed by the main board, the vertical plates and the cover plate through the sealing assembly, and finally block the gaps between the wall and the main board, the vertical plates and the cover plate with concrete, so as to improve the airtightness of the wall while ensuring cable transmission.

[0009] Optionally, the sealing assembly includes guiding bars symmetrically arranged on the main board. The guiding bars are in close contact with the vertical board. A substrate is detachably arranged between the two guiding bars. A first sealing sheet is arranged between the substrate and the cover plate. There is a gap between the substrate and the wire clamping board. A sealing plate is slidably arranged on the substrate. A plurality of pressing grooves are formed in the sealing plate, and the pressing grooves correspond to the wire clamping grooves one by one. A sealing strip is arranged on the pressing groove. A pressing member is arranged on the substrate, and the pressing member is used to press the sealing strip against the cable.

[0010] By adopting the above technical solution, after the cable is clamped in the wire clamping groove, the worker installs the substrate between the two guiding bars. Under the action of the pressing member, the sealing plate drives the sealing strip to press against the cable, so as to seal the gap between the cable and the wire clamping groove. Then the worker installs the cover plate on the vertical board, and the first sealing sheet seals the gap between the substrate and the cover plate, so as to seal the space surrounded by the main board, the vertical board and the cover plate.

[0011] Optionally, a sliding groove for the sliding of the sealing plate is formed in the substrate. The pressing member includes a guiding rod arranged on the substrate. The sealing plate is slidably sleeved on the guiding rod. A compression spring is propped between the substrate and the sealing plate.

[0012] By adopting the above technical solution, during the process of installing the substrate on the guiding bar, the compression spring pushes the sealing plate, and the sealing plate drives the sealing strip to press against the cable.

[0013] Optionally, the connecting member includes a connecting hook bar arranged on the cover plate, and a hook groove for the clamping of the connecting hook bar is formed in the vertical board.

[0014] By adopting the above technical solution, when the worker buckles the cover plate on the vertical board, the connecting hook bar on the cover plate is clamped in the hook groove on the vertical board. This process is convenient and simple for installation, which is beneficial to improving the installation efficiency of the worker.

[0015] Optionally, both ends of the wire clamping board are slidably matched with the two guiding bars respectively. A second sealing sheet is arranged between the wire clamping board and the main board.

[0016] By adopting the above technical solution, when the diameters of the cables are different, the worker can replace the wire clamping board and the corresponding sealing plate to meet the sealing requirements of cables with different diameters.

[0017] Optionally, a sealing airbag is arranged in the wire clamping groove. The cross-section of the sealing airbag is in a C shape, and the sealing airbag is used to abut against the sealing strip.

[0018] By adopting the above technical solution, during the process of pressing the sealing strip against the cable, the sealing airbag deforms and adapts to the shape of the cable until the sealing strip abuts against the sealing airbag, thereby completely sealing and surrounding the circumferential outer wall of the cable.

[0019] Optionally, two adjacent sealing airbags communicate with each other. A vertically arranged air tank is provided on the vertical plate. A hose is connected between the bottom of the air tank and one of the sealing airbags. A pressure floating block is slidably arranged in the air tank. The circumferential outer wall of the pressure floating block is in close contact with the circumferential inner wall of the air tank. The top of the air tank is open.

[0020] By adopting the above technical solution, when the ambient temperature drops, the pressure inside the sealing airbag decreases. At this time, the pressure floating block drops and pushes the gas in the air tank to flow into the sealing airbag through the hose, thereby weakening the decrease in the pressure inside the sealing airbag and maintaining the sealing performance around the cable.

[0021] Optionally, a transparent observation plate is provided on the air tank, and a pressure scale is provided on the air tank on one side of the observation plate.

[0022] By adopting the above technical solution, workers can directly understand the gas pressure inside the sealing airbag and whether the sealing airbag is damaged by observing the pressure scale value corresponding to the pressure floating block, which is convenient for workers to perform maintenance.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Workers first fixedly install the main board on the wall, then fix the cable in the cable slot of the wire clamping board, then fix the cover plate on the vertical plate through the connecting piece, and then seal the space enclosed by the main board, the vertical plate and the cover plate through the sealing component. Finally, seal the gap between the wall and the main board, the vertical plate and the cover plate with concrete, thereby improving the sealing performance of the wall while ensuring cable transmission;

[0025] 2. After the cable is clamped in the cable slot, workers install the substrate between the two guiding strips. Under the action of the pressing member, the sealing plate drives the sealing strip to press against the cable, thereby sealing the gap between the cable and the cable slot. Then workers install the cover plate on the vertical plate, and the first sealing piece seals the gap between the substrate and the cover plate, thereby sealing the space enclosed by the main board, the vertical plate and the cover plate;

[0026] 3. When the ambient temperature drops, the pressure inside the sealing airbag decreases. At this time, the pressure floating block drops and pushes the gas in the air tank to flow into the sealing airbag through the hose, thereby weakening the decrease in the pressure inside the sealing airbag and maintaining the sealing performance around the cable. Description of the Drawings

[0027] Figure 1 It is a schematic structural diagram of an embodiment of the present application.

[0028] Figure 2 It is a schematic structural diagram of the positional relationship among the main board, the sealing board and the wire clamping board in an embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view of the positional relationship among the substrate, the sealing board and the sealing airbag in an embodiment of the present application.

[0030] Explanation of reference numerals: 0, cable; 1, main board; 2, vertical board; 3, cover board; 4, connecting member; 41, connecting hook strip; 42, hook groove; 5, wire clamping board; 6, wire clamping groove; 7, sealing assembly; 71, guiding strip; 72, substrate; 73, first sealing sheet; 74, sealing board; 75, pressing groove; 76, sealing strip; 77, pressing member; 771, guiding rod; 772, compression spring; 8, sliding groove; 9, second sealing sheet; 10, sealing airbag; 11, gas tank; 12, hose; 13, pressure floating block; 14, observation board; 15, pressure scale; 16, connection hole position; 17, anti-detachment ring. Detailed implementation manners

[0031] The following further elaborates on the present application in conjunction with the attached Figures 1 - 3 drawings.

[0032] An embodiment of the present application discloses a cable tray structure with high airtightness at the wall-passing location.

[0033] Referring to Figure 1 , a cable tray structure with high airtightness at the wall-passing location includes a main board 1. Vertical boards 2 are symmetrically bent out on both sides of the main board 1. Connection hole positions 16 are provided on the vertical boards 2, and the connection hole positions 16 are used for bolting to other vertical boards 2. A cover board 3 is detachably arranged on the side of the two vertical boards 2 facing away from the main board 1. A connecting member 4 is arranged between the cover board 3 and the vertical board 2. The connecting member 4 includes a connecting hook strip 41 welded to the cover board 3, and a hook groove 42 for the connecting hook strip 41 to be clamped is provided on the vertical board 2.

[0034] Referring to Figure 1 , Figure 2 and Figure 3 , a wire clamping board 5 is arranged on the main board 1. A plurality of wire clamping grooves 6 for installing the cable 0 are provided on the wire clamping board 5 along its length direction. A sealing assembly 7 is arranged on the main board 1, and the sealing assembly 7 is used for sealing the space enclosed by the main board 1, the vertical board 2 and the cover board 3.

[0035] Referring to Figure 1 , Figure 2 and Figure 3, the sealing assembly 7 includes guide bars 71 symmetrically welded to the main board 1 and vertically arranged. The guide bars 71 are welded to the vertical plates 2. Both ends of the wire clamping board 5 are slidably engaged with the two guide bars 71 respectively. A second sealing sheet 9 is adhesively bonded to the bottom of the wire clamping board 5, and the second sealing sheet 9 is used to closely adhere to the main board 1. A base plate 72 is bolted between the two guide bars 71. A first sealing sheet 73 is adhesively bonded to the top of the base plate 72, and the first sealing sheet 73 abuts against the cover plate 3.

[0036] Referring to Figure 1 , Figure 2 and Figure 3 , there is a gap between the bottom of the base plate 72 and the top of the wire clamping board 5. A sealing plate 74 is vertically slidably arranged on the base plate 72. A sliding groove 8 for the sealing plate 74 to slide is formed on the base plate 72. A plurality of pressing grooves 75 are formed on the sealing plate 74, and the pressing grooves 75 correspond to the wire clamping grooves 6 one by one. A sealing strip 76 is adhesively bonded to the pressing grooves 75. A pressing member 77 is arranged on the base plate 72, and the pressing member 77 is used to press the sealing strip 76 against the cable 0. The pressing member 77 includes a guide rod 771 welded to the base plate 72, and the sealing plate 74 is slidably sleeved on the guide rod 771. A compression spring 772 is propped between the base plate 72 and the sealing plate 74.

[0037] The worker first fixes the main board 1 at the opening of the wall, clamps the cable 0 in the wire clamping grooves 6 of the wire clamping board 5, and then bolts the base plate 72 to the two guide bars 71. During the installation of the base plate 72, the compression spring 772 pushes the sealing plate 74, and the sealing plate 74 drives the sealing strip 76 to press against the cable 0. Then, the cover plate 3 is buckled on the vertical plate 2, and the connecting hook strip 41 on the cover plate 3 is stuck in the hook groove 42 on the vertical plate 2. Finally, the gap between the wall opening and the main board 1, the vertical plate 2, and the cover plate 3 is sealed with concrete.

[0038] Referring to Figure 1 , Figure 2 and Figure 3 , a sealing airbag 10 is adhesively bonded in the wire clamping groove 6. The cross-section of the sealing airbag 10 is C-shaped, and adjacent two sealing airbags 10 communicate with each other. The sealing airbag 10 is used to abut against the sealing strip 76. A vertical air tank 11 is bolted to the vertical plate 2, and a hose 12 is connected between the bottom of the air tank 11 and one of the sealing airbags 10.

[0039] Referring to Figure 1 , Figure 2 and Figure 3 , a pressure floating block 13 is vertically slidably arranged in the air tank 11. The circumferential outer wall of the pressure floating block 13 closely adheres to the circumferential inner wall of the air tank 11. The top of the air tank 11 is open, and an anti-disengagement ring 17 is bolted at the open top of the air tank 11. A transparent observation plate 14 is installed on the air tank 11, and the observation plate 14 closely adheres to the pressure floating block 13. A pressure scale 15 is formed on the air tank 11 and on one side of the observation plate 14.

[0040] When the sealing plate 74 drives the sealing strip 76 to press tightly against the cable 0, the sealing airbag 10 deforms and adapts to the shape of the cable 0 until the sealing strip 76 abuts against the sealing airbag 10. At this time, the circumferential outer sidewall of the cable 0 is completely surrounded by the sealing strip 76 and the sealing airbag 10. When the ambient temperature decreases, the pressure inside the sealing airbag 10 drops.

[0041] At this time, the pressure floating block 13 descends and squeezes the gas inside the bottom of the gas tank 11 to flow into the sealing airbag 10 through the hose 12, thereby weakening the drop in the pressure inside the sealing airbag 10. When the ambient temperature rises, the pressure inside the sealing airbag 10 increases, and the air inside the sealing airbag 10 flows into the gas tank 11 through the hose 12, increasing the air pressure inside the gas tank 11. At this time, the pressure floating block 13 rises, thereby reducing the possibility of the volume of the sealing airbag 10 being damaged due to expansion caused by the increased pressure.

[0042] The implementation principle of a cable tray structure with high airtightness at the wall penetration in the embodiment of the present application is as follows: Workers first fix the main board 1 at the opening of the wall, and place the cable 0 in the cable slot 6 of the cable clamping board 5. Then, the base board 72 is bolted to the two guiding strips 71. During the installation of the base board 72, the compression spring 772 pushes the sealing plate 74, and the sealing plate 74 drives the sealing strip 76 to press tightly against the cable 0. After that, the cover plate 3 is buckled on the vertical plate 2, and the connecting hook strip 41 on the cover plate 3 is stuck in the hook slot 42 on the vertical plate 2. Finally, the gaps between the wall opening and the main board 1, the vertical plate 2, and the cover plate 3 are sealed with concrete.

[0043] When the sealing plate 74 drives the sealing strip 76 to press tightly against the cable 0, the sealing airbag 10 deforms and adapts to the shape of the cable 0 until the sealing strip 76 abuts against the sealing airbag 10. At this time, the circumferential outer sidewall of the cable 0 is completely surrounded by the sealing strip 76 and the sealing airbag 10. When the ambient temperature decreases, the pressure inside the sealing airbag 10 drops.

[0044] At this time, the pressure floating block 13 descends and squeezes the gas inside the bottom of the gas tank 11 to flow into the sealing airbag 10 through the hose 12, thereby weakening the drop in the pressure inside the sealing airbag 10. When the ambient temperature rises, the pressure inside the sealing airbag 10 increases, and the air inside the sealing airbag 10 flows into the gas tank 11 through the hose 12, increasing the air pressure inside the gas tank 11. At this time, the pressure floating block 13 rises, thereby reducing the possibility of the volume of the sealing airbag 10 being damaged due to expansion caused by the increased pressure.

[0045] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A cable tray structure with high airtightness at the wall-passing position, characterized in that: It includes a main board (1), on both sides of which are symmetrically arranged vertical boards (2). On the side of the two vertical boards (2) facing away from the main board (1), a cover board (3) is detachably arranged. A connecting piece (4) is arranged between the cover board (3) and the vertical board (2). A wire clamping board (5) is arranged on the main board (1). Along its length direction, a plurality of wire clamping grooves (6) for installing cables (0) are formed on the wire clamping board (5). A sealing component (7) is arranged on the main board (1), and the sealing component (7) is used to seal the space enclosed by the main board (1), the vertical board (2) and the cover board (3).

2. The high airtight cable tray structure at the wall penetration according to claim 1, characterized in that: The sealing component (7) includes guiding strips (71) symmetrically arranged on the main board (1). The guiding strips (71) are in close contact with the vertical board (2). A substrate (72) is detachably arranged between the two guiding strips (71). A first sealing sheet (73) is arranged between the substrate (72) and the cover board (3). There is a gap between the substrate (72) and the wire clamping board (5). A sealing plate (74) is slidably arranged on the substrate (72). A plurality of pressing grooves (75) are formed on the sealing plate (74), and the pressing grooves (75) correspond to the wire clamping grooves (6) one by one. A sealing strip (76) is arranged on the pressing groove (75). A pressing member (77) is arranged on the substrate (72), and the pressing member (77) is used to press the sealing strip (76) against the cable (0).

3. The high airtight cable tray structure at the wall penetration according to claim 2, characterized in that: A sliding groove (8) for the sealing plate (74) to slide is formed on the substrate (72). The pressing member (77) includes a guiding rod (771) arranged on the substrate (72). The sealing plate (74) is slidably sleeved on the guiding rod (771). A compression spring (772) is propped between the substrate (72) and the sealing plate (74).

4. A high airtight cable tray structure at the wall penetration according to claim 1, characterized in that: The connecting piece (4) includes a connecting hook strip (41) arranged on the cover board (3). A hook groove (42) for the connecting hook strip (41) to be clamped is formed on the vertical board (2).

5. The high airtight cable tray structure at the wall-passing position according to claim 2, characterized in that: Both ends of the wire clamping board (5) are in sliding fit with the two guiding strips (71) respectively. A second sealing sheet (9) is arranged between the wire clamping board (5) and the main board (1).

6. The high airtight cable tray structure at the wall penetration according to claim 2, characterized in that: A sealing airbag (10) is arranged in the wire clamping groove (6). The cross-section of the sealing airbag (10) is in a C shape, and the sealing airbag (10) is used to abut against the sealing strip (76).

7. The high airtight cable tray structure at the wall penetration according to claim 6, characterized in that: Adjacent two sealing airbags (10) are communicated with each other. A vertical air tank (11) is arranged on the vertical board (2). A hose (12) is communicated between the bottom of the air tank (11) and one of the sealing airbags (10). A pressure floating block (13) is slidably arranged in the air tank (11). The circumferential outer wall of the pressure floating block (13) is in close contact with the circumferential inner wall of the air tank (11). The top of the air tank (11) is open.

8. A high airtightness cable tray structure at the wall crossing according to claim 7, characterized in that: A transparent observation board (14) is arranged on the air tank (11). A pressure scale (15) is arranged on the air tank (11) and on one side of the observation board (14).

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