CN217292742U

CN217292742U - Concrete pile mould

Info

Publication number: CN217292742U
Application number: CN202123178261.7U
Authority: CN
Inventors: 曾凯; 俞盈盈; 俞晓东
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-08-26
Anticipated expiration: 2031-12-16

Abstract

The utility model relates to a concrete pile mould, including lower bolster (1) and side form (2) that are located the lower bolster (1) left and right sides, side form (2) can enclose jointly with lower bolster (1) and form die cavity (4) that match with the appearance of concrete pile, and side form (2) comprise its characterized in that by the multistage concatenation: two adjacent sections the two opposite ends of side form board (2) are equipped with first step portion (3a) and second step portion (3b) respectively, thereby first step portion (3a) and second step portion (3b) overlap joint each other is adjacent two sections the concatenation department of side form board (2) forms interior concatenation clearance (6a) and outer concatenation clearance (6b) that misplace each other. Set up the less deformation material of deformability in the outer concatenation clearance, guarantee the firm stability of mould concatenation department, and can fill other deformation materials of changing the deformation in the concatenation clearance including, when expend with heat and contract with cold, when meetting the concrete pile lateral wall resistance of die cavity, also can inwards splice clearance the inside and warp, can not lead to the fact the extrusion to the concrete pile lateral wall that has not solidified completely yet.

Description

Concrete pile mould

Technical Field

The utility model belongs to the technical field of the pile foundation engineering of all kinds of building structure systems, especially, relate to a mould of preparation concrete pile.

Background

The existing concrete pile mould structure formed by vibration generally comprises two side templates and a lower template which are arranged at intervals left and right, wherein the lower template is positioned at the bottom between the two side templates; at least one side template is driven by the overturning driving mechanism to overturn, and the side template is overturned to the vertical direction and can enclose a cavity matched with the shape of the concrete pile together with the lower template. Steam curing is an important link in concrete pile manufacturing, while solid square piles, H-shaped piles and U-shaped piles are manufactured by adopting a long-line production method and using a long mould formed by splicing multiple sections, steam is directly introduced into the mould for steam curing, but the long mould generates severe thermal expansion and contraction due to high temperature in the steam curing process, so that the mould is deformed and damaged. In order to solve the problem, in the conventional method, the side templates on the same side are divided into a plurality of sections, a rubber pad is arranged between two adjacent sections of side templates on the same side in a cushioning manner, and the two adjacent sections of side templates are connected together through a connecting piece.

The steam is introduced into the mould in situ to steam the concrete pile instead of lifting the pile body and the mould to a steam curing pool, and during steam curing, the cavity inside the side template is used as a steam channel, and the steam is directly introduced into the cavity, flows to the far end of the mould gradually from the steam inlet end along the cavity inside the side template, so that the heating of the whole mould and the steam curing of the concrete pile are realized. But the disadvantages are that: the cross section area of the cavity in the side template is larger and generally ranges from 500 square centimeters to 750 square centimeters due to the limitation of the structure of the mold, when steam enters the cavity, the steam pressure is rapidly reduced, the flow speed of the steam in the cavity is reduced, the time for the steam to reach the far end of the mold from a steam inlet is longer, the heating time is long, the whole steam curing completion time is about 8 hours, the steam curing and production efficiency is extremely low, the heat loss is large, and the energy consumption is extremely high; and mould near-end and distal end are heated inhomogeneously moreover, lead to being close to the concrete pile of admission end and being heated excessively and appear the crack, and the mould distal end is heated less, evaporate foster not enough, and the temperature is difficult to accurate control in the cavity to direct influence product quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a concrete pile mould that structural design is reasonable, can effectively eliminate because of expend with heat and contract with cold and lead to the mould to warp is provided to above-mentioned prior art current situation to ensure the high-quality of the concrete pile of production.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a concrete pile mould, includes the lower bolster and is located the side form board of the lower bolster left and right sides, the side form board can enclose the die cavity that matches with the appearance of concrete pile jointly with the lower bolster together, the side form board comprises the multistage concatenation, its characterized in that: the two opposite ends of the two adjacent sections of the side formworks are respectively provided with a first step part and a second step part, and the first step part and the second step part are mutually overlapped so as to form an inner splicing gap and an outer splicing gap which are mutually staggered at the splicing part of the two adjacent sections of the side formworks. The multiple segments may be two or more segments, such as three or four segments. The inner splicing gap is close to the cavity.

Preferably, the side surface of the first stepped portion overlaps the side surface of the second stepped portion, the top surface of the first stepped portion, the bottom surface of the second stepped portion, and the side surface of the second stepped portion together define the outer joint gap, and the bottom surface of the first stepped portion, the top surface of the second stepped portion, and the side surface of the first stepped portion together define the inner joint gap. The side surfaces of the first step part and the second step part are overlapped, so that the outer splicing gap and the inner splicing gap are independent and staggered, and deformed materials respectively contained in the outer splicing gap and the inner splicing gap can not interfere with each other. The term "lap joint" as used herein means a joint in which the top surfaces of the first stepped portion and the second stepped portion are staggered with each other and the bottom surfaces thereof are also staggered with each other, but it is preferable that the side surface of the first stepped portion and the side surface of the second stepped portion are overlapped and bonded to each other.

Preferably, the length of the outer splice gap is greater than the length of the inner splice gap. The outer splicing gap generally contains a rubber pad therein, and other components can be penetrated in the outer splicing gap, so that the length of the outer splicing gap needs to be designed to be longer, and enough space is provided for the installation of other components.

Two adjacent sections of the side templates are connected together through a connecting piece; the connecting piece comprises a connecting bolt and a connecting nut, wherein the connecting bolt penetrates through the top surface of the first step part, the outer splicing gap and the bottom surface of the second step part and then is connected with the connecting nut.

Two adjacent sections of the side templates are connected together through a connecting piece; as another structure of the connecting piece, the connecting piece comprises a connecting plate, a connecting bolt and a connecting nut, the connecting plate is attached to the outer walls of the two adjacent sections of side formworks simultaneously, and the connecting plate is fixed with the two adjacent sections of side formworks respectively through the connecting bolt and the connecting nut.

The two connection modes have the advantages and the disadvantages respectively, and can be selected according to the needs.

Further improved, a steam pipeline arranged along the length direction of the side template is arranged in the side template in a penetrating mode, and a plurality of steam discharge holes are formed in the steam pipeline. The steam conveying channel is changed into a steam pipe with a relatively small pipe diameter from an original side template inner cavity with a large cross section, so that enough steam pressure is ensured to reach the far end of the mould, high-temperature and high-pressure steam can be correspondingly and quickly conveyed to the far end and each part of the mould, the mould can be heated instantly, the heating and temperature-rising reaction of the mould is quick, the steam curing efficiency is high, the steam curing time is greatly shortened, the steam curing time is half of the steam curing time conveyed through the side template inner cavity, and the total energy consumption is also greatly reduced; the utility model can ensure the far end and the near end of the mould to be heated evenly, thus ensuring the product quality of the concrete pile; the temperature is controllable, and the automatic control of temperature rise, steam supplement, constant temperature, steam cut-off and temperature reduction can be realized.

The steam pipeline is formed by splicing a plurality of sections of pipelines, a pipe joint penetrating through an outer splicing gap is arranged at the splicing position of two adjacent sections of side templates, and the steam pipelines are mutually spliced together through the pipe joint. Because the length of the mould is long, the steam pipeline is too long and is not easy to process and is easy to break, and the steam pipeline which is too long is inconvenient to be installed in the side mould plate. The bottom of the side formwork is provided with a plurality of condensed water discharge holes. The condensed water discharge hole can discharge condensed water formed in the inner cavity of the side template outside the steam pipeline in time, and the influence of the condensed water on the heating of the side template is avoided. And a temperature sensor is also arranged on the side template. The temperature sensor can automatically monitor the temperature of the die, and provides a basis for realizing the automatic control of the temperature of the die.

As an improvement, an isolation film layer used for covering the inner splicing gap is arranged on the inner wall of the cavity. The setting of isolation rete can avoid the concrete to enter interior concatenation clearance via the die cavity, also can avoid the buffer to spill over outside and interior concatenation clearance and get into the die cavity. The barrier film layer may be a black tape or the like.

As a refinement, the inner and/or outer splice gaps are filled with a deformable material. The modified material can be rubber pad, foam rubber and other materials capable of generating deformation. The deformable material in the inner splice gap is preferably foam rubber. If the isolating film layer is not provided, if the foam rubber overflows, the overflowing foam rubber is scraped.

In order to facilitate the connection operation of the templates at two adjacent sides in the side template, a side template operation window is arranged on the outer side wall of the side template adjacent to the outer splicing gap.

Optionally, the side templates on at least one side are driven by the overturning driving mechanism to overturn, and the side templates overturn to the vertical direction to form a cavity matched with the shape of the concrete pile together with the lower template. Of course, the side templates on both sides can be turned over, and the turning driving mechanism is generally driven by an oil cylinder which is designed conventionally.

Compared with the prior art, the utility model has the advantages of: the adjacent two sections of side templates form an inner splicing gap and an outer splicing gap which are mutually staggered and independent through mutually overlapped step parts, the inner splicing gap is close to the cavity, so that a deformation material which is smaller in deformation capacity and similar to a rubber pad can be arranged in the outer splicing gap, the firmness and the stability of the splicing position of the mold are ensured, other deformation materials (filled with foam rubber) which are easier to deform can be filled in the inner splicing gap, the foam rubber in the inner splicing gap is very easy to deform when the foam rubber expands with heat and contracts with cold, and the foam rubber can also deform towards the inner splicing gap when the resistance of the side wall of the concrete pile in the cavity is met, so that the side wall of the concrete pile which is not completely solidified can not be extruded while the expansion with heat and contraction with cold is eliminated; the deformation of the rubber pad in the outer splicing gap can not extend to influence the independent inner splicing gap which is staggered with each other, and the side wall of the concrete pile can not be extruded; in addition, because the inner splicing gap and the outer splicing gap are staggered and independent, the length of the outer splicing gap can be correspondingly increased, so that the inner splicing gap is designed to be short and small enough, and therefore, deformation materials do not need to be filled in the inner splicing gap, and the problem that the filling materials in the inner splicing gap extrude the side wall of the concrete pile does not exist at all. In addition, the inner splicing gap and the outer splicing gap formed at the splicing part of the two adjacent sections of the side templates are mutually staggered and independent, so that concrete in a middle-sized cavity cannot flow out from the splicing gap of the two adjacent sections of the molds during production, the concrete pile body at the splicing part of the molds is prevented from being deformed or being perforated, materials are saved, and environmental pollution outside the molds is also avoided.

Drawings

Fig. 1 is a side view of a first embodiment of the present invention;

fig. 2 is a schematic perspective view of a first embodiment of the present invention;

fig. 3 is a front view of the first embodiment of the present invention;

fig. 4 is a top view of a first embodiment of the present invention;

FIG. 5 is an enlarged view of FIG. 4 at A;

fig. 6 is a front view of a second embodiment of the present invention;

fig. 7 is a top view of a second embodiment of the present invention;

fig. 8 is an enlarged view of fig. 7 at B.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 5, it is a first embodiment of the present invention.

A concrete pile mould comprises a lower template 1 and side templates 2 positioned on the left side and the right side of the lower template 1, wherein the side templates 2 and the lower template 1 can jointly enclose a cavity 4 matched with the shape of a concrete pile, the side templates 2 on the same side are formed by splicing multiple sections, and two adjacent sections of the side templates 2 are connected together through a connecting piece 7; the concrete pile can be a solid square pile, an H-shaped pile or a U-shaped pile.

Two adjacent sections be equipped with first step portion 3a and second step portion 3b on the relative both ends face of side form 2 respectively, thereby first step portion 3a and second step portion 3b overlap joint each other two adjacent sections the side form 2 concatenation department forms the interior concatenation clearance 6a that can hold first deformation material 5a and can be used for holding second deformation material 5b that misplaces each other and splices clearance 6b outward, and interior concatenation clearance 6a is close to die cavity 4 and sets up. Of course, if the inner joint gap 6a is small, the deformation material may not be filled, or the isolation film 61 for covering the inner joint gap 6a may be directly provided on the inner wall of the cavity 4. If the inner splice gap 6a is filled with a deformable material, an isolation film layer 61 may also be provided.

The side surface 3a1 of the first step portion 3a partially overlaps the side surface 3b1 of the second step portion 3b, the top surface 3a2 of the first step portion 3a, the bottom surface 3b3 of the second step portion 3b and the side surface 3b1 of the second step portion 3b together enclose the outer splice gap 6b, and the bottom surface 3a3 of the first step portion 3a, the top surface 3b2 of the second step portion 3b and the side surface 3a1 of the first step portion 3a together enclose the inner splice gap 6 a.

The length of the outer splice gap 6b is greater than the length of the inner splice gap 6 a.

The connecting member 7 in this embodiment includes a connecting bolt 71 and a connecting nut 72, and the connecting bolt 71 passes through the top surface 3a2 of the first step portion 3a, the outer splicing gap 6b, and the bottom surface 3b3 of the second step portion 3b and then is connected to the connecting nut 72. The outer side wall of the side die plate 2 adjacent to the outer splicing gap 6b is provided with a side die operation window 22, and the side die operation window 22 is covered by a cover plate.

The side mould plate 2 is internally provided with a steam pipeline 8 arranged along the length direction of the side mould plate in a penetrating way, and the steam pipeline 8 is provided with a plurality of steam discharge holes 81. The steam pipeline 8 is formed by splicing a plurality of sections of pipelines, a pipe joint 82 penetrating through the outer splicing gap 6b is arranged at the splicing position of two adjacent sections of side templates 2, and the pipelines are mutually spliced together through the pipe joint 82.

The bottom of the outer side wall of the sideform 2 is provided with a plurality of condensate discharging holes 21. The sideforms 2 may also be provided with temperature sensors.

In this embodiment, the side forms 2 that are equipped with of one side all are fixed and vertical setting with fixing base 10, and lower bolster 1 is then fixed on fixing base 10, and all side forms 2 of opposite side are driven and can overturn by upset actuating mechanism 9, and upset actuating mechanism 9 is the pneumatic cylinder, and side forms 2 overturn to vertical can enclose the die cavity 4 that matches with the appearance of concrete pile jointly with lower bolster 1.

The method for forming the concrete pile by the mold is the prior art, and has different flow steps aiming at different pile types, which are not described again.

The inner splicing gap 6a and the outer splicing gap 6b which are staggered with each other are formed between the adjacent two side templates 2 through the first step part 3a and the second step part 3b which are mutually lapped, the inner splicing gap 6a is communicated with the cavity 4, so that a deformation material similar to a rubber pad can be arranged in the outer splicing gap 6b, the deformation material (filled with foam rubber) which is easier to deform can be filled in the inner splicing gap 6a, the foam rubber in the inner splicing gap 6a is very easy to deform when the expansion and contraction are carried out, and the deformation towards the inner splicing gap 6a can be realized when the resistance of the concrete pile side wall in the cavity 4 is met, so that the expansion and contraction force is eliminated, the not-yet-solidified concrete pile side wall can not be extruded, and the characteristic of weaker deformation capability of the rubber pad is combined, and the adjacent two side templates 2 are not too loose.

Fig. 6 to 8 show a second embodiment of the present invention.

The present embodiment is different from the first embodiment in that: the connecting piece 7 comprises a connecting plate 73, a connecting bolt 71 and a connecting nut 72, the connecting plate 73 is attached to the outer walls of two adjacent sections of the side formworks 2, and the connecting plate 73 is fixed to the two adjacent sections of the side formworks 2 through the connecting bolt 71 and the connecting nut 72. The holes for the connecting bolts 71 to pass through on the connecting plates 73 are strip-shaped holes so as to eliminate the clearance caused by thermal expansion and cold contraction.

It should be noted that, in the description of the present embodiment, the terms "front, back", "left, right", "inside, outside", "upper, lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides a concrete pile mould, includes lower bolster (1) and is located side form (2) of the lower bolster (1) left and right sides, side form (2) can enclose together with lower bolster (1) jointly and enclose die cavity (4) that match with the appearance of concrete pile, side form (2) are spliced by the multistage and are formed its characterized in that: two adjacent sections the two opposite ends of side form board (2) are equipped with first step portion (3a) and second step portion (3b) respectively, thereby first step portion (3a) and second step portion (3b) overlap joint each other is adjacent two sections the concatenation department of side form board (2) forms interior concatenation clearance (6a) and outer concatenation clearance (6b) that misplace each other.

2. A concrete pile mould as claimed in claim 1, wherein: the side surface (3a1) of the first step part (3a) is partially overlapped with the side surface (3b1) of the second step part (3b), the top surface (3a2) of the first step part (3a), the bottom surface (3b3) of the second step part (3b) and the side surface (3b1) of the second step part (3b) together enclose the outer splicing gap (6b), and the bottom surface (3a3) of the first step part (3a), the top surface (3b2) of the second step part (3b) and the side surface (3a1) of the first step part (3a) together enclose the inner splicing gap (6 a).

3. A concrete pile mould as claimed in claim 1, wherein: the length of the outer splicing gap (6b) is greater than the length of the inner splicing gap (6 a).

4. A concrete pile mould as claimed in claim 1, wherein: two adjacent sections of the side templates (2) are connected together through a connecting piece (7); the connecting piece (7) comprises a connecting bolt (71) and a connecting nut (72), wherein the connecting bolt (71) penetrates through the top surface (3a2) of the first step part (3a), the outer splicing gap (6b) and the bottom surface (3b3) of the second step part (3b) and then is connected with the connecting nut (72).

5. A concrete pile mould as claimed in claim 1, wherein: two adjacent sections of the side templates (2) are connected together through a connecting piece (7); the connecting piece (7) comprises a connecting plate (73), a connecting bolt (71) and a connecting nut (72), the connecting plate (73) is attached to the outer walls of the two adjacent sections of side formworks (2) simultaneously, and the connecting plate (73) is fixed with the two adjacent sections of side formworks (2) through the connecting bolt (71) and the connecting nut (72) respectively.

6. A concrete pile mould as claimed in claim 1, wherein: steam pipes (8) arranged along the length direction of the side die plates (2) penetrate through the side die plates, and a plurality of steam discharge holes (81) are formed in the steam pipes (8).

7. A concrete pile mould as claimed in claim 6, wherein: the steam pipeline (8) is formed by splicing a plurality of sections of pipelines, a pipe joint (82) penetrating through the outer splicing gap (6b) is arranged at the splicing position of two adjacent sections of side templates (2), and the steam pipelines are spliced together through the pipe joint (82); the bottom of the side template (2) is provided with a plurality of condensed water discharge holes (21); and a temperature sensor is also arranged on the side template (2).

8. A concrete pile mould as claimed in claim 1, wherein: and an isolation film layer (61) used for covering the inner splicing gap (6a) is arranged on the inner wall of the cavity (4).

9. A concrete pile mould as claimed in claim 1, wherein: the inner and/or outer splice gaps (6a, 6b) are filled with a deformable material.

10. A concrete pile mould as claimed in claim 1, wherein: and a side die operating window (22) is formed on the outer side wall of the side die plate (2) adjacent to the outer splicing gap (6 b).