CN2835356Y

CN2835356Y - Steel-edged steel fiber concrete manhole cover support

Info

Publication number: CN2835356Y
Application number: CN 200520130564
Authority: CN
Inventors: 郑军; 张继学
Original assignee: Xushui Huaguang Municipal Construction Materials Co ltd
Current assignee: Xushui Huaguang Municipal Construction Materials Co ltd
Priority date: 2005-11-07
Filing date: 2005-11-07
Publication date: 2006-11-08
Anticipated expiration: 2015-11-07

Abstract

The utility model provides a steel limit steel fibre concrete inspection well lid support, includes a hollow well lid support body, well lid support body form on steel reinforcement framework by steel fibre and concrete mixed pouring, its upper portion inboard is equipped with the step of supporting the well lid, the inside and outside both sides of well lid support body upper end are wrapped up in by a steel ring respectively, and effectual this intensity of supporting part of having guaranteed, simultaneously, when the drawing of patterns of well lid support, even if concrete part drops downwards, also can repair the position that drops through the mode of repairing to the phenomenon of suffering the destruction because of steel ring and the steel reinforcement framework that the clearance leads to that drops among the prior art has been avoided, therefore well lid support self stability is good, uses reliably.

Description

A kind of steel limit steel fibrous concrete manhole cover bearing

Technical field:

The utility model relates to a kind of well lid bearing, relates in particular to a kind of steel limit steel fibrous concrete manhole cover bearing.

Background technology:

In order to satisfy the well lid bearing, with effective carrying well lid in the requirement aspect the intensity.In the prior art, for example Chinese utility model patent ZL99213807.8 provides a kind of steel fibrous concrete well lid bearing, this well lid bearing is the rotary body of a hollow, it is cast on the cage of reinforcement by steel fibre and concrete mixing and forms, upper inner is provided with the step that supports well lid, and the top end face of well lid bearing also is provided with a steel ring, this steel ring welds together with the cage of reinforcement of inside, and fit together with the concrete surface on well lid bearing top, strengthen and the effect of protection thereby well lid bearing inside played; Yet, because the demoulding in the well lid bearing process is to finish before the steel fibrous concrete initial set of cast, so concrete solidifies the downward slump in rear section fully, this just and between the steel ring that welds together of cage of reinforcement has produced 3～5 mm clearance, and this gap can't be repaired, during use, come and go roll off through automobile, make that steel ring and cage of reinforcement are destroyed, thereby influence the normal use of well lid bearing, and make shorten greatly the application life of well lid bearing.

The utility model content:

The technical problem that the utility model solves is the deficiency that overcomes above-mentioned prior art, and a kind of steel limit steel fibrous concrete manhole cover bearing is provided, and it is the intensity height not only, and good stability, uses reliable.

A kind of steel limit steel fibrous concrete manhole cover bearing that provides according to the utility model, the well lid that comprises a hollow props up seat body, described well lid props up seat body to be mixed to be cast on the cage of reinforcement by steel fibre and concrete and forms, its upper inner is provided with the step that supports well lid, and the inside and outside both sides that described well lid props up the seat body upper end are wrapped by a upright steel ring respectively.

The utility model also has following attached technical characterictic:

The top of described upright steel ring is concordant with the top end face of described well seat body, and the bottom is positioned on the end face of described step.

The ratio of the height of described upright steel ring and described step is between 1: 1～1: 4, and the ratio that the height of described step and described well lid prop up the height overall of seat body is between 2: 3～2: 7.

Described upright steel ring is 1: 2 with the ratio of the height of described step, and the height of described step is 2: 5 with the ratio that described well lid props up the height overall of seat body.

The thickness of described upright steel ring is 2～9mm.

The thickness of described upright steel ring is 5mm.

Described two upright steel ring and described cage of reinforcement, the three welds together joint pin by many.

Described well lid props up the rotary body that seat body is a hollow.

The flare angle that has 1～5 degree between the sidewall of described step and the vertical direction, described well lid prop up the introversion angle that then has 1～10 degree between the lateral wall of seat body and the vertical direction; It is identical with the flare angle of described step sidewall that described well lid props up the inboard upright steel ring in seat body upper end, and the upright steel ring that described well lid props up the outside, seat body upper end is identical with the introversion angle that this well lid props up the seat body lateral wall.

According to a kind of steel limit steel fibrous concrete manhole cover bearing that the utility model provides, prior art has following advantage relatively:

At first, the utility model tightly wraps the inside and outside both sides that well lid props up the seat body upper end with two upright steel rings, effectively guaranteed the intensity of this support section, simultaneously, when the demoulding of well lid bearing, even if the concrete part comes off downwards, the position that also can will come off by the mode of repairing is repaired, thereby avoided in the prior art because of the existence phenomenon that steel ring that the gap causes and cage of reinforcement destroyed that comes off, so well lid bearing self stability is good, uses reliable; And because two upright steel rings reasonable in design, make well lid bearing long service life of the present utility model.

Secondly, mix to be cast on the cage of reinforcement by steel fibre and concrete and form,, can satisfy the requirement of aspects such as anti-folding, shock resistance and antifatigue so the well lid bearing that the utility model provides has higher intensity because well lid props up seat body.

Description of drawings:

The embodiment that provides below in conjunction with accompanying drawing is elaborated to the utility model:

The diagrammatic top view of the steel limit steel fibrous concrete manhole cover bearing that provides according to the utility model is provided Fig. 1;

Fig. 2 is along the schematic sectional view of A-A direction among Fig. 1;

Fig. 3 is upright steel ring of two described in the utility model and described cage of reinforcement three's a connection diagram;

Fig. 4 is along the schematic sectional view of C-C direction among Fig. 3.

The specific embodiment:

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of steel limit steel fibrous concrete well lid bearing that provides according to the utility model, the well lid that comprises a hollow props up seat body 1, well lid props up seat body 1 to be mixed to be cast on the cage of reinforcement 3 by steel fibre and concrete 2 and forms, its upper inner is provided with the step 4 that supports well lid, the inside and outside both sides that well lid props up seat body 1 upper end are wrapped by a upright steel ring 11 and 12 respectively, effectively guaranteed the intensity of this support section, simultaneously, when the demoulding of well lid bearing, even if the concrete part comes off downwards, fill the position that also can will come off by the mode of repairing, thereby avoided in the prior art because of the existence phenomenon that steel ring that the gap causes and cage of reinforcement destroyed that comes off, so well lid bearing self stability is good, uses reliable, and because two upright steel rings 11 reasonable in design, make well lid bearing long service life of the present utility model, even need repairing, maintenance cost is also very low.And two upright steel ring 11,12 and described cage of reinforcement 3, the three welds together joint pin 5 by many, and make the cross sections of welding back two upright steel rings 11,12 and cage of reinforcement 3 be one " H " shape (as shown in Figure 4) substantially, with this part intensity of further assurance.

As mentioned above, in order to guarantee that further the well lid bearing has higher intensity, can satisfy the requirement of aspects such as anti-folding, shock resistance and antifatigue, the utility model also provides following technical scheme and some technical datas: upright steel ring 11 is concordant with the top end face of well lid bearing seat body 1 with 12 top, and the bottom is positioned on the end face 41 of step 4;

Upright steel ring

11 and 12 and the ratio of the height of step 4 be between 1: 1～1: 4, optimum value is 1: 2, the ratio that the height of step 4 and well lid prop up the height overall of seat body 1 is between 2: 3～2: 7, optimum value is 2: 5; The thickness of

upright steel ring

11,12 is 2～9mm, and optimum value is 5mm.

Referring to Fig. 1 and Fig. 2, well lid props up the rotary body that seat body is a hollow.With step end face 41 is benchmark, has the flare angle b of 1～5 degree between the sidewall 42 of described step 4 and the vertical direction, corresponding with the inboard angle of well lid side, makes the edge carrying evenly; Propping up seat body 1 bottom face with well lid is benchmark, and described well lid props up the introversion angle c that then has 1～10 degree between the lateral wall of seat body 1 and the vertical direction, makes the well lid bearing place steadily; The upright steel ring 11 that described well lid props up inboard, seat body 1 upper end is identical with the flare angle b of described step sidewall 42; the upright steel ring 12 that described well lid props up the outside, seat body 1 upper end is identical with the introversion angle c that this well lid props up seat body 1 lateral wall, with the material in effective protection step 4.

The foregoing description is only for the usefulness that the utility model is described; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by each claim.

Claims

1, a kind of steel limit steel fibrous concrete manhole cover bearing, the well lid that comprises a hollow props up seat body (1), described well lid props up seat body (1) to be mixed to be cast on the cage of reinforcement (3) by steel fibre and concrete (2) and forms, its upper inner is provided with the step (4) that supports well lid, it is characterized in that: the inside and outside both sides that described well lid props up seat body (1) upper end are wrapped by a upright steel ring (11,12) respectively.

2, a kind of steel according to claim 1 limit steel fibrous concrete well lid bearing, it is characterized in that: the top of described upright steel ring (11,12) is concordant with the top end face that described well lid props up seat body (1), and the bottom is positioned on the end face (41) of described step (4).

3, a kind of steel according to claim 2 limit steel fibrous concrete well lid bearing, it is characterized in that: the ratio of the height of described upright steel ring (11,12) and described step (4) is between 1: 1～1: 4, and the ratio that the height of described step (4) and described well lid prop up the height overall of seat body (1) is between 2: 3～2: 7.

4, a kind of steel according to claim 3 limit steel fibrous concrete well lid bearing, it is characterized in that: described upright steel ring (11,12) is 1: 2 with the ratio of the height of described step (4), and the ratio that the height of described step (4) and described well lid prop up the height overall of seat body (1) is 2: 5.

5, according to claim 1 or 2 or 3 or 4 described a kind of steel limit steel fibrous concrete well lid bearings, it is characterized in that: the thickness of described upright steel ring (11,12) is 2～9mm.

6, a kind of steel according to claim 5 limit steel fibrous concrete well lid bearing, it is characterized in that: the thickness of described upright steel ring (11,12) is 5mm.

7, a kind of steel according to claim 1 limit steel fibrous concrete well lid bearing is characterized in that: described two upright steel ring (11,12) and described cage of reinforcement (3), the three welds together joint pin (5) by many.

8, a kind of steel according to claim 1 limit steel fibrous concrete well lid bearing, it is characterized in that: it is the rotary body of a hollow that described well lid props up seat body (1).

9, according to claim 1 or 7 or 8 described a kind of steel limit steel fibrous concrete well lid bearings, it is characterized in that: have the flare angle b of 1～5 degree between the sidewall (42) of described step (4) and the vertical direction, described well lid props up the introversion angle c that then has 1～10 degree between the lateral wall of seat body (1) and the vertical direction; It is identical with the flare angle b of described step sidewall (42) that described well lid props up the inboard upright steel ring (11) in seat body (1) upper end, and the upright steel ring (12) that described well lid props up the outside, seat body (1) upper end is identical with the introversion angle c that this well lid props up seat body (1) lateral wall.