CN2719923Y

CN2719923Y - Inspection well cover

Info

Publication number: CN2719923Y
Application number: CN 200420081583
Authority: CN
Inventors: 吴泽宏
Original assignee: Shanghai Jianwei Science & Technology Co Ltd
Current assignee: Shanghai Jianwei Science & Technology Co Ltd
Priority date: 2004-08-10
Filing date: 2004-08-10
Publication date: 2005-08-24
Anticipated expiration: 2014-08-10

Abstract

The utility model discloses a manhole cover comprising a manhole cover frame and a bottom surface provided at the bottom of the manhole cover frame. The manhole cover frame and the bottom surface are made of high molecular composite materials. Strengthening cross ribs mutually connected and integrated with the bottom surface and the manhole cover frame to form the stress dispersing holes are provided along the direction of the thickness of the bottom surface and vertically to the bottom surface. The utility model has the advantages of big bearing capacity, light weight, one piece forming through pouring, simple process, no rolling noise when vehicles pass, low cost, etc.

Description

The inspection shaft lid

Technical field

The utility model relates to a kind of road construction member, specifically, relates to a kind of manhole that is arranged on the road and props up, and more specifically relates to the inspection shaft lid that manhole that a kind of polymer composite makes props up.

Background technology

It is a kind of at the common building unit in road construction field that manhole props up, and comprises well lid and support.At present, common well lid is for to be made by materials such as cast iron, nylon, glass fiber reinforced plastic, cement, is to have certain thickness single layer structure, this well lid exists significant disadvantages, well lid must have certain thickness, can have enough strength support vehicles, as the impact of various vehicles.Therefore, the well lid that all at present manholes prop up is all very heavy frangible, and not only outward appearance is outmoded, and vehicle by the time, noise is big, being provided with of burglar-proof mechanism is unreasonable, has brought certain difficulty to management.

Though also there is the inspection shaft lid of some polymer composite systems to occur at present, but the following defective of ubiquity, the supporting capacity of composite manhole cover is lower than cast iron inspection shaft lid, particularly the fast traffic lane well lid is damaged easily at motorway, can not use, will consider the convenience of maintenance work simultaneously, well lid thickness and weight are unsuitable blocked up, overweight.

Summary of the invention

The utility model technical issues that need to address are to design a kind of inspection shaft lid, to overcome heavy frangible that prior art exists, outward appearance is outmoded, the big defective of noise when vehicle passes through, and existing polymer composite system inspection shaft covers defectives such as the bearing capacity that exists is low.

Technical scheme of the present invention: a kind of inspection shaft lid, it is characterized in that, comprise the well lid frame that polymer composite makes and be arranged on the bottom surface of frame bottom, be provided with along the thickness direction of bottom surface and perpendicular to the bottom surface and interconnect and form the reinforcement cross rib of the formation stress dispersion hole of one with bottom surface and frame.

Adopt the CJ/T of Ministry of Construction standard that well Zhi Jinhang of the present utility model is detected, its bearing capacity can reach more than the 360KN.

By above-mentioned disclosed technical scheme as seen, well lid of the present utility model, owing to will have some stress dispersion hole on the well lid, stressed the obtaining of whole well lid disperseed, thereby the well lid bearing capacity increase, simultaneously because the existence of counter stress dispersion hole, the weight of well lid lowers greatly, defectives such as the weight that has therefore overcome existing combined manhole cover existence is big, and bearing capacity is little meet the requirement of relevant department fully.This utility model adopts corrosion-resistant, good weatherability to be difficult for aging macromolecular material manufacturing simultaneously, can pass through pouring one-step forming, and technology is simple, than plain cast iron saving cost, and vehicle by the time do not have the noise of rolling, reduced the maintaining cost.And polymer composite do not have regeneration for stealer and is worth, and reduced in the past often stolen phenomenon of cast iron class inspection shaft lid yet.

Description of drawings

Fig. 1 is a front elevational schematic of the present utility model;

Fig. 2 is an embodiment side cutaway view of the present utility model;

Fig. 3 is another embodiment schematic diagram of the present utility model.

The specific embodiment

Further specify the utility model below in conjunction with accompanying drawing.

As seen from Figure 1, the said inspection shaft lid of the utility model, comprise the well lid frame 1 that polymer composite makes and be arranged on the bottom surface 2 of frame bottom, be provided with along the thickness direction of bottom surface and perpendicular to the bottom surface and interconnect and form the reinforcement cross rib 3 of the formation stress dispersion hole 4 of one with bottom surface and frame.

The percent opening of stress dispersion hole is 60%～80%.Said percent opening be meant the ratio of porose cross-sectional area and the cross section of whole well lid.The bottom surface 2 of the utility model well lid is the plane, and described stress dispersion hole is other shapes such as positive hexahedron is cellular or cylindric, square.

Stress dispersion hole 4 can be cellular for positive hexahedron, also can be multiple shapes such as cylinder or square

As shown in Figure 2, the utility model also comprises the end face (6) that fixedly is covered in frame top, and end face (6) can be by Plastic Welding on frame, or is adhered on the frame by bonding agent, also can be by bolt on frame.

Referring to Fig. 3, for ease of installing, it is protruding 5 that the edge of described well lid is evenly equipped with ear, the protruding installing hole that is provided with of ear.Can have screw on the corresponding well lid support, thereby the well lid main body is fixed on the support.

The shape of the utility model well lid can be multiple shapes such as circle, ellipse or rectangle.

Claims

1. an inspection shaft covers, it is characterized in that, comprise the well lid frame (1) that polymer composite is made and be arranged on the bottom surface (2) of frame bottom, be provided with along the thickness direction of bottom surface and perpendicular to the bottom surface and interconnect and form the reinforcement cross rib (3) of the formation stress dispersion hole (4) of one with bottom surface and frame.

2. inspection shaft lid according to claim 1 is characterized in that the percent opening of stress dispersion hole is 60%～80%.

3. inspection shaft lid according to claim 1 and 2 is characterized in that the bottom surface of described well lid (2) are the plane.

4. inspection shaft lid according to claim 1 and 2 is characterized in that, also comprises the end face (6) that fixedly is covered in frame top.

5. inspection shaft lid according to claim 1 and 2 is characterized in that described stress dispersion hole is that hexahedron is cellular.

6. inspection shaft lid according to claim 3 is characterized in that the edge of described well lid is evenly equipped with ear protruding (5), the protruding installing hole that is provided with of ear.

7. inspection shaft lid according to claim 5 is characterized in that the edge of described well lid is evenly equipped with ear protruding (5), the protruding installing hole that is provided with of ear.

8. inspection shaft according to claim 7 lid is characterized in that, described well lid be shaped as circle, ellipse or rectangle.