CN202781423U

CN202781423U - Novel centrifugal shaping mold set for concrete hollow square piles

Info

Publication number: CN202781423U
Application number: CN 201220313905
Authority: CN
Inventors: 程伟明; 高军峰; 杨末丽
Original assignee: Shanghai Zhongji Pile Industry Co Ltd
Current assignee: Shanghai Zhongji Pile Industry Co Ltd
Priority date: 2012-06-29
Filing date: 2012-06-29
Publication date: 2013-03-13
Anticipated expiration: 2022-06-29

Abstract

The utility model discloses a novel centrifugal shaping mold set for concrete hollow square piles. The novel centrifugal shaping mold set for the concrete hollow square piles comprises an upper mold, a lower mold, lining rib plates, bolts for connecting the upper mold with the lower mold, supporting plates at two ends of the mold set, and a running wheel which is used for enabling the mold set to rotate on a centrifugal machine. The novel centrifugal shaping mold set for the concrete hollow square piles is characterized in that a cross section of an inner cavity of the upper mold and a cross section of an inner cavity of the lower mold are both in the shape of a V, when the upper mold and the inner mold are buckled together, a cross section of an inner cavity formed by the upper mold and the lower mold is in the shape of a square, ring-shaped components are arranged at equal intervals on an inner mold in a mold cavity between the upper mold and the lower mold, the included angle of one oblique face of each ring-shaped component and one inner mold face is called alpha which is more than 90 degrees and less than 180 degrees, and the included angle of the other oblique face of each ring-shaped component and the inner mold face is called beta which is more than 90 degrees and less than 180 degrees. A concrete hollow square pile manufactured through the novel centrifugal shaping mold is provided with ring-shaped components on the surface, the ring-shaped components are arranged at equal intervals, and therefore the contact area of the concrete hollow square pile and a soil body is effectively enlarged, and load-bearing capacity of the concrete hollow square pile is enhanced; and under the condition of the same load-bearing capacity, a large quality of building materials are saved compared to ordinary preformed piles, and the novel centrifugal shaping mold set for the concrete hollow square piles makes a great contribution to energy conservation and environmental protection.

Description

A kind of centrifugal moulding mould of concrete hollow square pile

Technical field

The utility model relates to a kind of utensil of foundation pile moulding in a kind of building field, particularly a kind of centrifugal moulding mould of concrete hollow square pile.

Background technology

Under the greatly developing who builds at home, prefabricated pile has obtained a large amount of uses in pile foundation engineering, and it has easy construction, the advantage such as cheap; And the maximum prefabricated pile of use is pile tube and hollow square pile in the present pile foundation engineering, and these two kinds of prefabricated piles all are by centrifugal punching block High Rotation Speed on centrifuge, makes the concrete in the mould do the high speed centrifugation motion, is made at last hollow pile.

Chinese patent, the patent No. is: ZL200420080467.3, name is called: " centrifugal square pile mold "; The patent No. is: ZL200520071098.6, name is called: " centrifugal square concrete pile mold ", all be that centrifugal hollow square pile mould High Rotation Speed on centrifuge is made offcenter squared pile, yet, these two kinds of Mold Makings offcenter squared pile out all is ganoid hollow square pile, bearing capacity of single pile is relatively limited, and when particularly running into some soft layers, it is slightly not enough that such hollow square pile just seems aspect bearing capacity of single pile.

The utility model content

The technical problems to be solved in the utility model provides that a kind of to make bearing capacity of single pile higher, the centrifugal moulding mould of the more stable a kind of concrete hollow square pile of bearing capacity performance when running into soft layer.

For achieving the above object, the technical solution of the utility model is as follows:

A kind of centrifugal moulding mould of concrete hollow square pile comprises upper die and lower die, liner gusset, connects bolt, the gripper shoe of both mold ends and the running wheel that mould is rotated at centrifuge of upper and lower mould; Described upper and lower mold cavity cross section is " V " font, upper and lower mould fastens the rear interior cavity cross section and is square, internal mold equal intervals in the upper and lower mould die cavity is provided with annular element, the angle α of described annular element inclined-plane and interior die face is 90 °＜α＜180 °, and angle β is 90 °＜β＜180 °.

Preferably, described annular element is annular protruding rib or annular groove.

Preferably, the thickness H of described annular groove is 10mm-100mm.

Preferably, the thickness H of described annular protruding rib is 10mm-100mm.

Preferably, the cross sectional shape of described annular groove is triangle, circular arc, square or trapezoidal.

Preferably, the cross sectional shape of described annular protruding rib is triangle, circular arc, square or trapezoidal.

Preferably, the spacing between described two adjacent annular grooves or annular protruding rib is 0.5m-3m.

By technique scheme, the beneficial effects of the utility model are:

1. the concrete hollow square pile produced of the utility model can allow pile body surface equidistantly distribute annular protruding rib or annular groove, thereby increases the contact-making surface of pile body and the soil body, thus the increase bearing capacity of single pile.

2. the concrete hollow square pile produced of the utility model, when vertical load is arranged the time spent is done in its generation, annular protruding rib or the annular groove on surface can produce shear action with the soil body, thereby when increasing bearing capacity of single pile, pile-soil interaction is more tight, plays a role so that the smooth hollow square pile of this stake specific surface in soft layer can be more stable.

3. the utility model concrete hollow square pile of producing can improve more bearing capacity of single pile than the ganoid hollow square pile that unidimensional internal mold is produced, so in practical engineering application, can saving use in a large number the stake amount, thereby be that the national energy-saving and emission-reduction of advocating are contributed.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the internal structure schematic diagram of the utility model patrix;

Fig. 2 is the cutaway view of A-A among Fig. 1;

Fig. 3 is the structural representation of annular element and interior die face.

Numeral and the represented corresponding component title of letter among the figure:

1, patrix 2, internal mold 3, annular element 4, gusset 5, counterdie 6, sealing ring

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

To shown in Figure 3, the centrifugal moulding mould of a kind of concrete hollow square pile of the utility model comprises patrix 1, counterdie 5, liner gusset 4, connects bolt, the gripper shoe of both mold ends and the running wheel that mould is rotated at centrifuge of upper and lower mould referring to Fig. 1; Upper and lower mold cavity cross section is " V " font, upper and lower mould fastens the rear interior cavity cross section and is square, internal mold 2 equal intervals in the upper and lower mould die cavity are provided with annular element 3, and the angle α that annular element 3 inclined-planes and internal mold are 2 is 90 °＜α＜180 °, and angle β is 90 °＜β＜180 °.

The utility model annular element 3 is preferably annular protruding rib or annular groove; The thickness H of annular groove or annular protruding rib is 10mm-100mm, and the cross sectional shape of annular groove or annular protruding rib is triangle, circular arc, square or trapezoidal; Spacing between two adjacent annular grooves or annular protruding rib is 0.5m-3m.

The utility model internal mold 2 four limit corners are stress and eliminate circular arc, its four arc chord angles are 90 °, arc radius R1 is 10-30mm, four limit corners of annular element 3 also are stress and eliminate circular arc, its four arc chord angles are 90 °, annular element 3 is isocentric circular arc with four limit corner circular arcs of internal mold 2, and arc radius R2 is R1+H, and the height H of annular element 3 is 10-100mm.

The spacing L2 of two annular elements 3 is 0.5～3m, and stake end is L1 with the spacing of the first annular element 3, and L2=2L1, thereby guarantees, the product of working it out when this mould is behind pile extension, and annular protruding rib or annular groove keep equidistantly distributing.

The utility model is established sealing ring 6 at

patrix

1 and 5 of counterdies, and sealing ring 6 is located at patrix 1 and counterdie 5 closes up the place, or in patrix 1 or counterdie 5 seal grooves, uses sealing ring 6 can avoid making and occur the spillage phenomenon in the moulding, has guaranteed the finished product rate.

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. the centrifugal moulding mould of a concrete hollow square pile comprises upper die and lower die, liner gusset, connects bolt, the gripper shoe of both mold ends and the running wheel that mould is rotated at centrifuge of upper and lower mould; It is characterized in that, described upper and lower mold cavity cross section is " V " font, upper and lower mould fastens the rear interior cavity cross section and is square, internal mold equal intervals in the upper and lower mould die cavity is provided with annular element, the angle α of described annular element inclined-plane and interior die face is 90 °＜α＜180 °, and angle β is 90 °＜β＜180 °.

2. the centrifugal moulding mould of a kind of concrete hollow square pile according to claim 1 is characterized in that, described annular element is annular protruding rib or annular groove.

3. the centrifugal moulding mould of a kind of concrete hollow square pile according to claim 2 is characterized in that, the thickness H of described annular groove is 10mm-100mm.

4. the centrifugal moulding mould of a kind of concrete hollow square pile according to claim 2 is characterized in that, the thickness H of described annular protruding rib is 10mm-100mm.

5. the centrifugal moulding mould of a kind of concrete hollow square pile according to claim 2 is characterized in that, the cross sectional shape of described annular groove is triangle, circular arc, square or trapezoidal.

6. the centrifugal moulding mould of a kind of concrete hollow square pile according to claim 2 is characterized in that, the cross sectional shape of described annular protruding rib is triangle, circular arc, square or trapezoidal.

7. the centrifugal moulding mould of described a kind of concrete hollow square pile according to claim 2 is characterized in that the spacing of described two adjacent annular elements is 0.5m-3m.