CN2711250Y - Steel fiber reinforced concrete man-hole cover - Google Patents

Abstract

The utility model discloses a steel fiber reinforced concrete manhole cover, which belongs to an urban road apparatus. Specifically, the utility model relates to a repair basement manhole cover for urban road water supply and drainage, coal gas, cables, optical fiber cables, heating, etc. The lower bottom surface of the manhole cover 1 is provided with reinforcing ribs 2 which are projected downward, the reinforcing rib 2 extend to an edge from the middle of the lower bottom surface, the middle part of the reinforcing ribs 2 is high, the edge part of the reinforcing ribs 4 is low, and the edge reaches the outer edge of the manhole cover. The utility model has 2 to 8 reinforcing ribs 2. The reinforcing ribs 2 are vertical to the bottom surface of the manhole cover. The reinforcing ribs are distributed radially, crossways and in a parallel way. A well base which is matched with the manhole cover is provided with an embedding groove 6. The utility model has the advantages of reasonable design, simple and practical technical proposal. The arranged reinforcing ribs can transfer pressure quickly to subgrade through the well base, and thereby, the pressurization strength of the manhole cover is added. Compared with the general steel fiber reinforced concrete manhole cover, the service life of the manhole cover of the utility model is long.

Description

Steel fiber concrete strengthens well lid

Technical field

The utility model belongs to urban road facility, and the maintenance that relates in particular to plumbing on the urban road, coal gas, cable, optical cable and heating etc. is covered with inspection shaft.

Background technology

Urban construction is stamped multiple product with inspection shaft, and the stolen incident of casting iron well lid happens occasionally, and compound resin well cover is owing to taken up badly broken when the cement concrete well lid uses easily by automobile from heavy and light.In recent years, the steel fiber concrete well lid is heavier with its deadweight, and recovery value is low, and advantage such as firm and durable has substituted above product.In order further to increase the firmness of steel fiber concrete well lid, available technology adopting is set up the way of reinforcing rib in the well lid bottom surface, but this reinforcing rib only is arranged on the middle part of well lid, well lid and well seat remain and separate, do the time spent in that well lid is stressed, the end face of well seat intermediate step and well lid form shearing point, and well lid is ruptured from here, also can in use produce displacement, mutual collision etc. between well lid that is separated from each other in addition and the well seat, these all make significantly reduce the application life of well lid.

Summary of the invention

At above-mentioned deficiency of the prior art, the purpose of this utility model provides a kind of steel fiber concrete and strengthens well lid, it can be mutually nested together with the well seat, has improved the stress of well lid, well seat, has guaranteed the stability of well lid and has improved application life.

The purpose of this utility model is achieved in that the main body of this steel fiber concrete enhancing well lid is the steel fiber concrete structure, the outer periphery of well lid is equipped with the steel plate housing, that the well lid profile has is square, rectangle and circle, its special special feature is: well lid 1 bottom surface is provided with the strength bar 2 that always extends to the edge from the centre of downward protrusion, the mid portion 3 that strengthens rib 2 is higher, edge part 4 is lower, the well lid outer of going directly, edge; The step 7 of the well seat that is used with well lid be provided with well lid on strengthen the gomphosis groove 6 that rib 2 shapes and size match.Well lid is positioned on the step 7 of well seat during use, the edge part that strengthens rib 2 just in time with the well seat on groove 6 tablings.Described enhancing rib 2 is 2 to 8.Described enhancing rib 2 is perpendicular to the well lid bottom surface.That described enhancing rib is is radial, cross-like, parallel shape distribute.

The utility model is reasonable in design, technical scheme is simple and practical, the edge of set enhancing rib is nested with well seat upper groove, make well lid combine as a whole with the well seat, pressure suffered on the well lid can promptly pass to roadbed by the well seat, thereby has increased the bearing strength of well lid, and travelling of heavy vehicle can not make it sustain damage yet, compare with ordinary steel fiber concrete well cover, the application life of the utility model well lid is much higher.

Description of drawings

Accompanying drawing 1 is the well lid perspective view of the handstand of the utility model one embodiment;

Accompanying drawing 2 is the well seat perspective view of the utility model one embodiment;

Accompanying drawing 3 is the well lid lateral view of strength bar arranged in a crossed manner;

Accompanying drawing 4 is the well lid lateral view of the strength bar that be arranged in parallel;

Accompanying drawing 5 is the vertical view that is provided with the round well lid of 5 strength bar;

Accompanying drawing 6 is the vertical view that is provided with the square well lid of 4 strength bar;

Accompanying drawing 7 is the vertical view that is provided with the rectangle well lid of 4 parallel strength bar;

Accompanying drawing 8 is that the well lid of an embodiment combines the sectional structure schematic diagram with the well seat.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.As shown in Figure 1, the characteristics of this well lid just are that the bottom surface of well lid is provided with the enhancing rib 2 that always extends to the edge from the centre.Intermediate portion 3 is higher, and edge part 4 is lower, and the edge is mutually concordant with the outer of well lid, and the center cross section that strengthens rib 2 in this example forms concentrated pillar.As shown in Figure 2, match with this well lid step of the well seat 5 that uses is provided with groove 6.Accompanying drawing 8 shows, when well lid combines with the well seat, just in time is stuck under enhancing rib 2 edges under the well lid in the groove 6 on the step 7, and the remainder that strengthens rib 2 is in the empty tube 8 of well seat central authorities.The utility model has numerous embodiments, Figure 3 shows that to strengthen the well lid that the rib middle body has intersection, and the centre that strengthens rib 2 in this example intersects, and cross section is less; Accompanying drawing 4 is the well lid of parallel enhancing rib, and the mid portion that strengthens rib in this example is smooth; Accompanying drawing 5 is the enhancing rib circle well lid of radial arrangement, and its middle body does not have small column among the figure, and it also can be provided with small column as shown in Figure 1.Accompanying drawing 6 is 4 square well lids that strengthen rib.Accompanying drawing 7 is for strengthening the rectangle well lid that rib is arranged in parallel.

Claims (4)

1, a kind of steel fiber concrete strengthens well lid, the well lid main body is the steel fiber concrete structure, the outer periphery of well lid is equipped with the steel plate housing, that the well lid profile has is square, rectangle and circle, it is characterized in that: well lid (1) bottom surface is provided with the enhancing rib (2) that always extends to the edge from the centre of downward protrusion, the mid portion (3) that strengthens rib (2) is higher, and edge part (4) is lower, the well lid outer of going directly, edge; The step (7) that is mated the well seat of use be provided with well lid on strengthen the gomphosis groove (6) that rib (2) shape and size match.

2, well lid according to claim 1 is characterized in that: described enhancing rib (2) is 2 to 8.

3, well lid according to claim 1 is characterized in that: described enhancing rib (2) is radial, cross-like, parallel shape distributes.

4, well lid according to claim 1 is characterized in that: described enhancing rib (2) is perpendicular to the well lid bottom surface.

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