A lightweight cable trench cover and its processing mold

Abstract

The utility model discloses a lightweight cable trench cover, including a cover body in the shape of a rectangular plate as a whole, with steel bars arranged inside the cover body, and is characterized in that the cover body is made of UHPC material; a circle of rectangular steel frames are embedded near the four side edges of the cover body, and the two ends of the steel bars are welded and fixed in the steel frames and cast and fixed together with the cover body. A corresponding processing mold is also disclosed. The utility model has the advantages of light product weight, convenient transportation and construction, high product quality and strength, good pressure bearing performance, and convenient and quick processing.

Description

Technical Field

[0001] The utility model belongs to the field of cable trench building structures, and in particular relates to a lightweight cable trench cover plate and a processing mould thereof. Background Art

[0002] The cable trench is a channel for laying cables. A cover plate is required on the cable trench to protect the cables and facilitate maintenance. Conventional lightweight cable trench covers are rectangular plate-shaped bypass concrete components with limited structural strength. However, cable trenches are usually set at the edge of the road. In modern society, there are more and more household cars, and some cars often press on lightweight cable trench covers when they park on the roadside. Under the pressure of vehicles, the cover plate is prone to bending, damage, collapse and other damage.

[0003] In order to improve the strength of cable trench cover plates, thicker concrete is usually used during production, but this will make the cover plates heavier and inconvenient to transport and construct. At the same time, some cover plates will have steel bars embedded in them to improve strength, but when the cover plates are processed and cast, the internal steel bars are difficult to accurately position, which affects the consistency of the cover plate product quality.

[0004] Therefore, how to provide a lightweight cable trench cover with higher product strength, lighter weight, and easier to withstand vehicle rolling has become a problem to be considered and solved by technical personnel in this field. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a lightweight cable trench cover plate and a processing mold thereof which has higher product strength, lighter weight, and is more easily able to withstand vehicle rolling.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A lightweight cable trench cover comprises a cover body which is in the shape of a rectangular plate as a whole, and steel bars are arranged inside the cover body. The invention is characterized in that the cover body is made of UHPC material; a circle of rectangular steel frames are embedded in the cover body near four side positions, and both ends of the steel bars are welded and fixed in the steel frames and cast and fixed together with the cover body.

[0008] In this way, the cover body is made of UHPC material. UHPC material (Ultra-High Performance Concrete) is the abbreviation of ultra-high performance concrete material, which is an existing high-strength casting material. The cover cast with this material, combined with the middle reinforcing rib structure of embedded steel and steel bars, can obtain a higher strength cover with a thinner thickness and lighter weight, which greatly improves the bearing capacity and pressure resistance of the cover while ensuring light weight. At the same time, inside the cover body, a circle of steel sections is set around the edge as a supporting skeleton, and the steel bars are directly welded to the steel sections to facilitate the installation and fixation of the steel bars. At the same time, the overall strength of the cover is greatly improved, so that the product has a higher product strength while being lighter in weight, and it is easier to withstand vehicle crushing without breaking, and the product quality strength is higher.

[0009] Furthermore, the steel frame is made of channel steel, and one side of the support leg of the channel steel is arranged inward and the back side is arranged outward.

[0010] In this way, the overall quality strength and pressure-bearing stability of the product can be better guaranteed. During implementation, the steel section can also have other structural forms, which will not be described in detail here.

[0011] Furthermore, the steel section is hot-dip galvanized channel steel, which can better ensure strength and quality.

[0012] Furthermore, the steel bars are No. 8 steel bars, which better ensure the strength and quality.

[0013] Furthermore, a downwardly protruding middle reinforcement rib is arranged on the lower surface of the cover plate body along the length direction, and the steel bars are arranged along the length direction of the cover plate body and embedded in the middle reinforcement rib.

[0014] At the same time, since the steel bars are arranged in the middle reinforcement rib, the structural strength of the middle reinforcement rib itself can be better guaranteed and will not be easily damaged by collision.

[0015] Furthermore, the middle reinforcing ribs are divided into two spaced apart pieces and are evenly spaced apart along the width direction of the cover plate body.

[0016] In this way, the overall strength of the product can be better improved.

[0017] Furthermore, a circle of edge reinforcement ribs protruding downwards is provided along the edges of the lower surface of the cover plate body, and a part of the steel frame is located inside the edge reinforcement ribs.

[0018] In this way, sufficient structural strength can be obtained with less consumables, resulting in a lighter product.

[0019] Furthermore, at least one end of the cover body is provided with a through hole extending through the cover body along the thickness direction.

[0020] In this way, it is convenient to open the cover by hooking it through the through hole when inspecting the cable trench.

[0021] The utility model also discloses a lightweight cable trench cover plate processing mold, characterized in that it includes a bottom mold, a bottom mold upper surface is provided with a bottom mold cavity with a depth consistent with the thickness of the cover plate body, the bottom mold cavity is used to form the lower surface and four sides of the cover plate, a circle of edge grooves for forming edge reinforcement ribs are provided around the bottom of the bottom mold cavity, and a middle groove for forming middle reinforcement ribs is provided inside the edge groove along the length direction; it also includes a suspension bracket detachably supported and installed above the bottom mold, and the suspension bracket is provided with a bundling station for bundling suspension ropes.

[0022] In this way, during processing, first install the suspension bracket on the bottom mold, and then use the suspension rope to suspend the steel frame on the suspension bracket. The steel bars have been pre-welded and fixed on the steel frame. When hoisting the steel frame, ensure that the lower part of the steel frame falls into the edge sink but remains suspended, and the steel bars fall into the middle sink but remain suspended. In this way, the mold installation and positioning of the steel frame are completed, and then the corresponding UHPC concrete material is poured in. The lower surface and the surrounding sides of the product are formed by the bottom model cavity, and the upper surface of the product is directly formed by casting to form a flat surface. After the product is formed, the suspension rope can be cut off. Therefore, it has the advantages of simple mold structure and convenient and fast processing.

[0023] Furthermore, the suspension bracket includes two gantries which are respectively arranged at two end positions in the length direction of the bottom mold along the width direction, and the lower ends of the gantries are inserted into slots on the bottom mold.

[0024] In this way, the suspension bracket has the advantages of simple structure and convenient disassembly and assembly.

[0025] Furthermore, two bundling stations are symmetrically arranged on each suspension bracket, and bundling grooves are arranged on the upper surfaces of the suspension brackets of the bundling stations.

[0026] In this way, it is convenient to locate the binding position of the sling rope and to complete the binding and fixing.

[0027] Furthermore, a vibration platform is included below the bottom mold, so that vibration after pouring can be easily achieved to ensure product quality.

[0028] In summary, the utility model has the advantages of light product weight, convenient transportation and construction, high product quality and strength, good pressure bearing performance, and convenient and quick processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the upper surface of the lightweight cable trench cover of the utility model.

[0030] Figure 2It is a schematic diagram of the lower surface of the lightweight cable trench cover of the utility model.

[0031] Figure 3 It is a schematic cross-sectional view along the width direction of the lightweight cable trench cover of the utility model.

[0032] Figure 4 It is a schematic cross-sectional view along the length direction of the lightweight cable trench cover of the utility model.

[0033] Figure 5 It is a schematic diagram of the structure of the processing mold of the utility model when viewed from above.

[0034] Figure 6 It is a schematic cross-sectional structure diagram of the processing mold of the utility model along the width direction. DETAILED DESCRIPTION

[0035] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0036] When implementing: Figures 1 to 5 As shown, a lightweight cable trench cover comprises a cover body 1 which is in the shape of a rectangular plate as a whole, and steel bars 2 are arranged inside the cover body 1. The feature is that the cover body 1 is made of UHPC material; a circle of rectangular steel frames 3 are embedded in the cover body 1 near the four side edges, and both ends of the steel bars 2 are welded and fixed in the steel frames 3 and cast and fixed together with the cover body 1.

[0037] In this way, the cover body is made of UHPC material. UHPC material (Ultra-High Performance Concrete) is the abbreviation of ultra-high performance concrete material, which is an existing high-strength casting material. The cover cast with this material, combined with the middle reinforcing rib structure of embedded steel and steel bars, can obtain a higher strength cover with a thinner thickness and lighter weight, which greatly improves the bearing capacity and pressure resistance of the cover while ensuring light weight. At the same time, inside the cover body, a circle of steel sections is set around the edge as a supporting skeleton, and the steel bars are directly welded to the steel sections to facilitate the installation and fixation of the steel bars. At the same time, the overall strength of the cover is greatly improved, so that the product has a higher product strength while being lighter in weight, and it is easier to withstand vehicle crushing without breaking, and the product quality strength is higher.

[0038] The steel frame 3 is made of channel steel, and one side of the support leg of the channel steel is inwardly facing and the back side is outwardly facing.

[0039] In this way, the overall quality strength and pressure-bearing stability of the product can be better guaranteed. During implementation, the steel section can also have other structural forms, which will not be described in detail here.

[0040] Among them, the steel is hot-dip galvanized channel steel, which can better ensure strength and quality.

[0041] Among them, steel bar 2 uses No. 8 steel bar to better ensure strength and quality.

[0042] The lower surface of the cover plate body 1 is provided with a downwardly protruding middle reinforcing rib 4 along the length direction, and the steel bars 2 are arranged along the length direction of the cover plate body and embedded in the middle reinforcing rib 4 .

[0043] At the same time, since the steel bars are arranged in the middle reinforcement rib, the structural strength of the middle reinforcement rib itself can be better guaranteed and will not be easily damaged by collision.

[0044] There are two intermediate reinforcing ribs 4 spaced apart and evenly spaced apart along the width direction of the cover plate body.

[0045] In this way, the overall strength of the product can be better improved.

[0046] A circle of edge reinforcement ribs 5 protruding downwards is arranged along the edges of the lower surface of the cover body 1 , and a part of the steel frame 3 is located inside the edge reinforcement ribs 5 .

[0047] In this way, sufficient structural strength can be obtained with less consumables, resulting in a lighter product.

[0048] A through hole 6 is provided through at least one end of the cover body 1 along the thickness direction.

[0049] In this way, it is convenient to open the cover by hooking it through the through hole when inspecting the cable trench.

[0050] The utility model also discloses a lightweight cable trench cover plate processing mold, see Figure 5-6 As shown, it includes a bottom mold 7, the upper surface of the bottom mold 7 is provided with a bottom mold cavity with a depth consistent with the thickness of the cover body, the bottom mold cavity is used to form the lower surface and four sides of the cover, and a circle of edge grooves 8 for forming edge reinforcement ribs are arranged around the bottom of the bottom mold cavity, and a middle groove 9 for forming middle reinforcement ribs is arranged inside the edge groove 8 along the length direction; it also includes a suspension bracket 10 detachably supported and installed above the bottom mold, and the suspension bracket 10 has a bundling station for bundling suspension ropes.

[0051] In this way, during processing, first install the suspension bracket on the bottom mold, and then use the suspension rope to suspend the steel frame on the suspension bracket. The steel bars have been pre-welded and fixed on the steel frame. When hoisting the steel frame, ensure that the lower part of the steel frame falls into the edge sink but remains suspended, and the steel bars fall into the middle sink but remain suspended. In this way, the mold installation and positioning of the steel frame are completed, and then the corresponding UHPC concrete material is poured in. The lower surface and the surrounding sides of the product are formed by the bottom model cavity, and the upper surface of the product is directly formed by casting to form a flat surface. After the product is formed, the suspension rope can be cut off. Therefore, it has the advantages of simple mold structure and convenient and fast processing.

[0052] The suspension bracket 10 includes two gantries which are respectively arranged at two ends of the length direction of the bottom mold along the width direction, and the lower ends of the gantries are inserted into slots on the bottom mold.

[0053] In this way, the suspension bracket has the advantages of simple structure and convenient assembly and disassembly.

[0054] There are two bundling stations symmetrically arranged on each suspension bracket, and a bundling groove 11 is arranged on the upper surface of the suspension bracket of the bundling station.

[0055] In this way, it is convenient to locate the binding position of the sling rope and to complete the binding and fixing.

[0056] Among them, also comprise the vibration platform 12 that is located below the bottom mold. This facilitates the vibration after pouring and ensures the product quality.

Claims

1. A lightweight cable trench cover, comprising a cover body in the shape of a rectangular plate as a whole, wherein steel bars are arranged in the cover body, and characterized in that: The cover plate body is made of UHPC material; a circle of rectangular steel frame is embedded in the cover plate body near the four side positions, and the two ends of the steel bars are welded and fixed in the steel frame and cast and fixed together with the cover plate body.

2. The lightweight cable trench cover according to claim 1, characterized in that: The steel frame is made of channel steel, and one side of the support leg of the channel steel is arranged inwardly and the back side is arranged outwardly.

3. The lightweight cable trench cover according to claim 1, characterized in that: The steel section is hot-dip galvanized channel steel; the steel bars are No. 8 steel bars.

4. The lightweight cable trench cover according to claim 1, characterized in that: A downwardly protruding middle reinforcing rib is arranged on the lower surface of the cover plate body along the length direction, and the steel bars are arranged along the length direction of the cover plate body and embedded in the middle reinforcing rib.

5. The lightweight cable trench cover according to claim 4, characterized in that: The middle reinforcing ribs are divided into two spaced apart ribs and are evenly spaced apart along the width direction of the cover plate body.

6. The lightweight cable trench cover according to claim 1, characterized in that: A circle of edge reinforcement ribs protruding downwards is arranged along the edges of the lower surface of the cover plate body, and a part of the steel frame is located inside the edge reinforcement ribs.

7. The lightweight cable trench cover according to claim 1, characterized in that: At least one end of the cover body is penetrated by a through hole along the thickness direction.

8. A lightweight cable trench cover processing mold, characterized in that: It includes a bottom mold, the upper surface of which is provided with a bottom mold cavity with a depth consistent with the thickness of the cover plate body, the bottom mold cavity is used to form the lower surface and four sides of the cover plate, a circle of edge grooves for forming edge reinforcement ribs are arranged around the bottom of the bottom mold cavity, and a middle groove for forming middle reinforcement ribs is arranged inside the edge groove along the length direction; it also includes a suspension bracket detachably supported and installed above the bottom mold, and the suspension bracket is provided with a bundling station for bundling suspension ropes.

9. The lightweight cable trench cover processing mold according to claim 8, characterized in that: The suspension bracket comprises two gantry frames which are respectively arranged at two ends of the length direction of the bottom mold along the width direction, and the lower ends of the gantry frames are inserted and installed in slots on the bottom mold.

10. The lightweight cable trench cover processing mold according to claim 9, characterized in that: Two strapping stations are symmetrically arranged on each suspension bracket, and a strapping groove is arranged on the upper surface of the suspension bracket of the strapping station; Also included is a vibration platform located below the bottom mold.

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