Fireproof cable bridge

Abstract

The utility model belongs to the technical field of cable installation, and particularly relates to a fireproof cable bridge which comprises a bridge bottom plate, a bridge top plate and a placing plate, the bridge bottom plate is U-shaped, and the bridge top plate is arranged at the upper end of the bridge bottom plate in a matched mode; a plurality of weight reduction grooves are evenly distributed in the two sides of the bridge bottom plate in the length direction, a containing plate is arranged in the bridge bottom plate, and a ventilation gap is formed between the containing plate and the bridge bottom plate. A clamping plate is slidably arranged in the weight reduction groove, a clamping groove and a limiting groove are formed in the same side of the clamping plate, the clamping groove is communicated with the limiting groove, and the limiting groove is perpendicular to the clamping groove; limiting blocks are arranged at the bottom ends of the two sides of the containing plate, the side edges of the containing plate are clamped in the clamping grooves, and the limiting blocks are clamped in the limiting grooves. The inner side and the outer side of the cable bridge are in a ventilation and heat dissipation state; the internal placing plate is limited and fixed through the weight reduction groove of the bridge bottom plate, convenience and rapidness are achieved, and connection is reliable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable installation technical field especially, it is a kind of fireproof cable bridge. BACKGROUND

[0002] Cable bridge is a kind of device for protecting cable, cable is placed in it and wired, which can support cable and prevent fire and flame retardant, by selecting suitable material and coating treatment, cable bridge can also play the role of fireproofing and flame retardant, reduce the risk and loss of fire.

[0003] At present, fireproof cable bridge also has some problems in the process of using, for example, the existing cable material is directly laid in cable bridge, when external fire occurs, the temperature of cable bridge shell is easy to be too high, so that the cable closely combined with the inside of cable bridge occurs the condition of outer skin damage;Or when the internal cable temperature is high, the heat dissipation effect is poor.

[0004] Secondly, for prefabricated conventional fireproof cable bridge, such as concrete prefabricated cable bridge and the like, it generally does not often use bolts, nuts and other fasteners for connection, and prefabricated parts generally use plug-in connection mode, but the connection stability of this connection mode needs to be improved. TECHNICAL SOLUTION

[0005] In view of the technical problems in the background art, the utility model provides a fireproof cable bridge.

[0006] To achieve the above purpose, the technical scheme provided by the utility model is:

[0007] A fireproof cable bridge, comprising a bridge bottom plate, a bridge top plate and a placing plate, the bridge bottom plate is provided in U shape, the upper end of the bridge bottom plate is provided with a bridge top plate in cooperation;The both sides of the bridge bottom plate are evenly distributed with a plurality of lightening grooves along the length direction, the inside of the bridge bottom plate is provided with a placing plate, and the placing plate and the bridge bottom plate have a ventilation gap;The lightening groove is slidably provided with a clamping plate, the same side of the clamping plate is provided with a clamping groove and a limiting groove, the clamping groove and the limiting groove are communicated, and the limiting groove and the clamping groove are perpendicular to each other;The both sides of the bottom end of the placing plate are provided with limiting blocks, the side edge of the placing plate is clamped in the clamping groove, and the limiting block is clamped in the limiting groove.

[0008] Optionally, one side of the clamping plate is provided with a limiting baffle, and the length of the limiting baffle is greater than the width of the lightening groove.

[0009] Optionally, the clamping plate is provided with a first connecting hole communicated with the limiting groove, the first connecting hole is provided with a first connecting bolt, the limiting block is provided with a second connecting hole, one end of the first connecting bolt is arranged outside the limiting block through the limiting groove and the second connecting hole, and a first nut abutting against the limiting block is connected to the first connecting bolt.

[0010] Optionally, the two sides of the bridge top plate are respectively provided with a connecting part, the connecting part is provided with a clamping groove, and the two sides of the bridge bottom plate are arranged in the clamping groove.

[0011] Optionally, the connecting part is provided with a third connecting hole, the third connecting holes of the two connecting parts are provided with a second connecting bolt, the second connecting bolt is provided with a plurality of second nuts, the second nuts are abutted against the side wall of the connecting part, and the second connecting bolt is arranged in the corresponding weight reduction groove.

[0012] Optionally, the upper end of the weight reduction groove is slidably provided with a mounting block, the mounting block is arranged on the second connecting bolt, and the mounting block is abutted against the clamping groove; a plurality of jacking screws are threadedly connected to the mounting block, the jacking screws are arranged in the weight reduction groove, and the jacking screws are vertically upwardly abutted against the inner wall of the upper end of the weight reduction groove.

[0013] Optionally, the placing plate is uniformly provided with a plurality of ventilation grooves.

[0014] Optionally, the bottom end of the placing plate is provided with a support column, and the support column is supported on the bottom wall of the bridge bottom plate.

[0015] The utility model has the following advantages and beneficial effects:

[0016] In the utility model, the placing plate is arranged between the bridge bottom plate and the bridge top plate, the cable wire material can be arranged on the placing plate, the weight reduction groove on the bridge bottom plate and the ventilation groove of the placing plate itself can ensure that the inside and outside of the whole cable bridge are in a ventilation and heat dissipation state, and the cable is arranged in suspension on the placing plate, so that the heat dissipation effect can be further improved.

[0017] Secondly, the bridge bottom plate has sufficient shape size, in order to reduce cost, generally adopts prefabricated part, so that the weight reduction groove of the prefabricated bridge bottom plate itself is utilized to install the clamping plate, and the placing plate in the interior is limited and fixed through the clamping plate. The connecting mode is that the bridge bottom plate does not need to be provided with a connecting hole, the whole manufacturing procedure can be reduced, the installation and fixation of the placing plate and the bridge bottom plate are completed through the weight reduction groove, which is convenient and fast, and the connection is reliable. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure diagram of the fireproof cable bridge in the utility model;

[0019] Figure 2 For Figure 1 Front view;

[0020] Figure 3 For Figure 2 Sectional view along direction A-A in the middle;

[0021] Figure 4 For Figure 1 Enlarged view of a portion at a in the middle;

[0022] Figure 5 For Figure 3 Enlarged view of a portion at b in the middle;

[0023] Figure 6 For Figure 3 Enlarged view of a portion at c in the middle;

[0024] Figure 7 Structure diagram of bridge bottom plate in the utility model;

[0025] Figure 8 Structure diagram of bridge top plate in the utility model;

[0026] Figure 9 Structure diagram of placing plate in the utility model;

[0027] Figure 10 Front view of clamping plate in the utility model;

[0028] Figure 11 Structure diagram of clamping plate in the utility model one;

[0029] Figure 12 Structure diagram of clamping plate in the utility model two;

[0030] Figure 13 Connection structure diagram of mounting block and jacking screw in the utility model.

[0031] Reference signs: 1-bridge bottom plate, 11-weight reduction groove, 2-bridge top plate, 21-connection part, 22-clamping groove, 23-third connection hole, 3-placing plate, 31-ventilation groove, 32-strut, 33-limiting block, 34-second connection hole, 4-clamping plate, 41-limiting baffle, 42-clamping groove, 43-limiting groove, 44-first connection hole, 5-first connecting bolt, 51-first nut, 6-mounting block, 61-center hole, 62-threaded hole, 63-jacking screw, 7-second connecting bolt, 71-second nut. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model.

[0033] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0034] Embodiment

[0035] As Figures 1-13 shown, a fireproof cable bridge, comprising bridge bottom plate 1, bridge top plate 2 and placing plate 3, bridge bottom plate 1 is set to U type, and the upper end of bridge bottom plate 1 is matched with bridge top plate 2. Bridge bottom plate 1 is uniformly distributed with a plurality of lightening grooves 11 along the length direction on both sides, which can reduce the weight of bridge bottom plate 1, especially the concrete bridge bottom plate prefabricated part. Bridge bottom plate 1 is internally provided with placing plate 3, and placing plate 3 is used for installing cables and other wires. There is a ventilation gap between placing plate 3 and bridge bottom plate 1, that is, placing plate 3 is suspended to provide a space for heat dissipation and ventilation. The lightening groove 11 is slidably provided with a clamping plate 4, and the same side of the clamping plate 4 is provided with a clamping groove 42 and a limiting groove 43, the clamping groove 42 is communicated with the limiting groove 43, the limiting groove 43 is perpendicular to the clamping groove 42, and the clamping groove 42 and the limiting groove 43 are T-shaped. Among them, the clamping groove 42 is a horizontal slot, which is arranged on the upper side of the clamping plate 4, and the limiting groove 43 is a vertical slot, which is arranged on the middle lower side of the clamping groove 42. The bottom end of both sides of the placing plate 3 is provided with a limiting block 33, the side edge of the placing plate 3 is clamped in the clamping groove 42, and the limiting block 33 is clamped in the limiting groove 43.

[0036] In the utility model, by setting the placing plate 3 between the bridge bottom plate 1 and the bridge top plate 2, the cable wires can be arranged on the placing plate 3, and the ventilation slots 31 on the bridge bottom plate 1 and the placing plate 3 can ensure that the inside and outside of the entire cable bridge are in a ventilation and heat dissipation state, and the cables are suspended on the placing plate 3, which can further improve the heat dissipation effect.

[0037] Secondly, the bridge bottom plate 1 has sufficient outer dimensions, in order to reduce the cost, generally adopt prefabricated parts, therefore in utilizing the lightening groove 11 that prefabricated bridge bottom plate 1 has itself, utilize lightening groove 11 to install the clamping plate 4, through the clamping plate 4 to the inside placing plate 3 is limited, fixed.Such connection mode, bridge bottom plate 1 does not need to set connection hole again, can reduce the whole manufacturing procedure, utilizes lightening groove 11 to complete the installation and fixing of placing plate 3 and bridge bottom plate 1, convenient and fast, and connection is reliable.

[0038] Further, one side of the clamping plate 4 is provided with a limiting baffle 41, the length of the limiting baffle 41 is greater than the width of the lightening groove 11. When installing the clamping plate 4, the clamping plate 4 is slidingly arranged in the lightening groove 11, and the limiting baffle 41 can be limited by the side wall of the bridge bottom plate 1 (as shown in Figure 4 ).

[0039] Further, the clamping plate 4 is provided with a first connecting hole 44 in communication with the limiting groove 43, the first connecting hole 44 is provided with a first connecting bolt 5, and the limiting block 33 is provided with a second connecting hole 34. When the limiting block 33 is arranged in the limiting groove 43, the first connecting hole 44 and the second connecting hole 34 are opposite, one end of the first connecting bolt 5 is arranged outside the limiting block 33 through the limiting groove 43 and the second connecting hole 34, and the first connecting bolt 5 is connected with a first nut 51 arranged close to the limiting block 33. In this way, the detachable fixing of the clamping plate 4, the placing plate 3 and the bridge bottom plate 1 is completed. The connecting structure can adjust the height of the placing plate 3 by sliding the clamping plate 4, realize the adjustment of the internal heat dissipation space of the cable bridge, and fix by the first connecting bolt 5, which is convenient to disassemble and assemble.

[0040] As shown in Figures 1-13 , in the utility model, the two sides of the bridge top plate 2 are respectively provided with connecting parts 21, the connecting parts 21 are provided with clamping grooves 22, and the two sides of the bridge bottom plate 1 are arranged in the clamping grooves 22, so that the limiting installation is realized.

[0041] Further, the connecting part 21 is provided with a third connecting hole 23, the third connecting holes 23 of the two connecting parts 21 are provided with second connecting bolts 7, the second connecting bolts 7 are provided with a plurality of second nuts 71, the second nuts 71 are arranged close to the side wall of the connecting part 21, and the second connecting bolts 7 are arranged in the corresponding lightening grooves 11. In this way, the lightening grooves 11 can be used to detachably connect the bridge top plate 2 and the bridge bottom plate 1, which is convenient to disassemble and assemble. Since the second connecting bolts 7 are arranged in the lightening grooves 11, the bridge bottom plate 1 and the bridge top plate 2 are not completely fixed, and theoretically, the two can have a certain running space. However, since the bridge top plate 2 has sufficient weight, the up-and-down shaking will not occur in normal use.

[0042] As shown in Figures 1-13As shown, in order to further realize the stable connection of the bridge top plate 2 and the bridge bottom plate 1, the optimization design is made. The upper end of the weight reduction groove 11 is slidably provided with a mounting block 6. Specifically, the mounting block 6 has a center hole 61 inside, the mounting block 6 is arranged on the second connecting bolt 7 through the center hole 61, and the mounting block 6 is tightly arranged in the clamping groove 22. Such design, using the mounting block 6, connects the second connecting bolt 7, the mounting block 6 and the bridge bottom plate 1 into one, realizes complete horizontal limiting, so that the bridge top plate 2 and the bridge bottom plate 1 cannot move horizontally after being connected.

[0043] Further, the mounting block 6 is provided with a threaded hole 62, and the threaded hole 62 is provided with at least one threaded hole. A plurality of jacking screws 63 are threadedly connected to the mounting block 6, the jacking screws 63 are arranged in the weight reduction groove 11, and the jacking screws 63 vertically abut the upper end inner wall of the weight reduction groove 11. Such design, using the jacking screw 63, completely realizes the connection and fixation of the bridge top plate 2 and the bridge bottom plate 1.

[0044] In the utility model, the placing plate 3 is uniformly provided with a plurality of ventilation grooves 31, which can realize the ventilation of the inside and outside of the cable bridge, realize the ventilation of the inside of the cable bridge, i.e. the upper and lower ventilation of the placing plate 3, increase the ventilation and heat dissipation capacity of the cable bridge, and increase the fireproof performance of the cable bridge.

[0045] In the utility model, the bottom end of the placing plate 3 is provided with a support column 32 which is supported on the bottom wall of the bridge bottom plate 1 to increase the connecting strength of the placing plate 3. In order to ensure that the height of the placing plate 3 can be adjusted, the support column 32 can be arranged as a telescopic multi-section telescopic shaft structure, so that the height of the placing plate 3 and the internal heat dissipation space can be adjusted.

[0046] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fire resistant cable tray, characterized by: The bridge bottom plate, the bridge top plate and the placing plate are included, The bridge top plate is arranged at the upper end of the bridge bottom plate in a matching mode; A plurality of lightening grooves are distributed along the length direction on both sides of the bridge bottom plate, and the placing plate is arranged in the bridge bottom plate. A clamping plate is slidably arranged in the lightening groove, and a clamping groove and a limiting groove are arranged on the same side of the clamping plate.

2. The fire resistant cable tray of claim 1, wherein: A limiting block is arranged at the bottom end of the placing plate, the side edge of the placing plate is clamped in the clamping groove, and the limiting block is clamped in the limiting groove.

3. The fire resistant cable tray of claim 2, wherein: A limiting baffle is arranged on one side of the clamping plate, and the length of the limiting baffle is greater than the width of the lightening groove.

4. The fire resistant cable tray of claim 1, wherein: A first connecting hole is arranged on the clamping plate and communicated with the limiting groove, a first connecting bolt is arranged in the first connecting hole, a second connecting hole is arranged on the limiting block, one end of the first connecting bolt is arranged outside the limiting block through the limiting groove and the second connecting hole, and a first nut is arranged on the first connecting bolt and closely arranged on the limiting block.

5. The fire resistant cable tray of claim 4, wherein: A connecting portion is arranged on each of the two sides of the bridge top plate, a clamping groove is arranged in the connecting portion, and the two sides of the bridge bottom plate are arranged in the clamping grooves.

6. The fire resistant cable tray of claim 5, wherein: A third connecting hole is arranged on the connecting portion, a second connecting bolt is arranged in the third connecting hole of the two connecting portions, a plurality of second nuts are arranged on the second connecting bolt, and the second nuts are closely arranged on the side wall of the connecting portion.

7. The fire resistant cable tray of claim 1, wherein: The second connecting bolt is arranged in the corresponding lightening groove.

8. The fire resistant cable tray of claim 1, wherein: An installation block is slidably arranged at the upper end of the lightening groove, the installation block is arranged on the second connecting bolt, and the installation block is closely arranged in the clamping groove. A plurality of jacking screws are threadedly connected to the installation block, the jacking screws are arranged in the lightening groove, and the jacking screws vertically upwardly abut the inner wall of the upper end of the lightening groove. A plurality of ventilation grooves are distributed on the placing plate. A support column is arranged at the bottom end of the placing plate, and the support column is supported on the bottom wall of the bridge bottom plate.

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