CN217597402U

CN217597402U - Preparation mould of centrifugal concrete I-shaped pile

Info

Publication number: CN217597402U
Application number: CN202221696292.3U
Authority: CN
Inventors: 缪海林; 许德刚; 陈育志; 陈晓洪; 于闯
Original assignee: Nanjing Huilian Building Materials Technology Development Co ltd
Current assignee: Nanjing Huilian Building Materials Technology Development Co ltd
Priority date: 2022-07-02
Filing date: 2022-07-02
Publication date: 2022-10-18
Anticipated expiration: 2032-07-02

Abstract

The utility model discloses a preparation mould of centrifugal concrete I-shaped pile, including shell and centre form, the cross section of centre form is the rectangle structure, and the centre form includes upper die and lower mould, is provided with the baffle on the inner wall of centre form, and the baffle sets up on the face that the cross section is rectangle long limit correspondence, and the baffle distributes along the length direction of centre form, separates the face symmetry that rectangle long limit corresponds; the partition plates comprise an upper partition plate and a lower partition plate, and a gap is arranged between the upper partition plate and the lower partition plate; the corresponding surfaces of the inner mould with the short sides are provided with lugs which are in a semicircular structure. The inner die is divided into two parts by the upper partition plate and the lower partition plate arranged on the inner die, the pile body formed by centrifugation in the inner die is divided into two parts by the upper partition plate and the lower partition plate, the middle hole formed by centrifugation is uniformly divided into the half slots on the side walls of the two pile bodies, one side end face of each pile forms the half slot through the convex block, two solid H-shaped piles prepared by one die are realized, and the production efficiency is improved.

Description

Preparation mould of centrifugal concrete I-shaped pile

Technical Field

The utility model belongs to the technical field of precast pile preparation and specifically relates to a preparation mould of centrifugal concrete I-shaped pile is related to.

Background

In industrial and civil building structures, piles are vertical stressed members buried underground, are mainly used for supporting an upper structure, and transmit load of the upper structure to a foundation through friction force between a pile body and the foundation or pile end supporting force. In the excavation process of the deep and large foundation pit, the piles are also used for supporting the foundation pit to prevent the foundation pit from collapsing, and at the moment, the piles are mainly used for supporting the lateral pressure of soil around the foundation pit, which is similar to the stress characteristics of the ditch dado piles in hydraulic engineering.

With the continuous development of engineering technology, various novel piles are continuously developed, and the application of the novel piles in engineering construction is more and more extensive. The development direction of the pile is mainly to save the material consumption of the pile body as much as possible under the condition of not obviously weakening the stress performance of the pile, thereby improving the economic benefit. For example, the centrifugal hollow square pile (tubular pile) saves the consumption of concrete by forming a hollow inside the pile body, but the contact area between the pile body and the foundation soil body is unchanged, thereby ensuring the same side friction force, and the centrifugal forming process ensures that the concrete has higher strength and durability. The supporting pile adopts an I-shaped section, and concrete materials can be saved on the premise of ensuring the bending resistance bearing capacity of the supporting pile by utilizing the advantages of small sectional area and high bending rigidity of the I-shaped section. The pile types are applied in large quantity, so that higher economic and social benefits are created, and great contribution is made to social development.

However, the currently used i-shaped pile is mainly prepared by casting or centrifugal forming, and such preparation method has the following disadvantages: 1. the centrifugal preparation mode inevitably forms a hole in the center of the pile, namely only a centrifugal hollow pile can be prepared, and the lateral bearing capacity and the anti-seismic performance are poor due to the hollow section; 2. the pouring mode is adopted to replace the centrifugal mode, and although the solid state can be guaranteed, the concrete strength and the durability are relatively weak.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a preparation mould of centrifugation concrete I-shaped pile for the convenience of preparing the concrete fender pile of solid I-shaped.

The utility model provides a preparation mould of centrifugal concrete I-shaped pile, including shell and the centre form that sets up in the shell, the cross section of centre form be the rectangle structure, the centre form include upper die and lower mould, be provided with the baffle on the inner wall of centre form, the baffle sets up on the face that the cross section is rectangle long limit correspondence, the baffle distributes along the length direction of centre form, separates the face symmetry that rectangle long limit corresponds; the partition plates comprise an upper partition plate and a lower partition plate, the upper partition plate is arranged on the upper die, the lower partition plate is arranged on the lower die, and a gap is formed between the upper partition plate and the lower partition plate; the corresponding surfaces of the inner mold with short sides are provided with lugs, and the lugs are in semicircular structures.

Through above-mentioned technical scheme, separate into two parts with the centre form through set up baffle and lower baffle on the centre form, and set up the clearance between last baffle and lower baffle, can separate into two parts through the partition of last baffle and lower baffle, the pile body that the centrifugation that will form in the centre form is separated into, the middle hole of centrifugation shaping has been divided into the half slot on two pile body lateral walls by even, and a lateral surface of stake passes through the lug and forms the half slot, thereby realized that a mould preparation two solid I type stakes, compare in traditional centrifugation shaping hollow pile, under the same circumstances of sectional area, the cross section girth is bigger, it is bigger with the side friction of ground, higher bearing capacity has.

In a specific embodiment, the diameter of the bump is the same as the gap distance between the upper partition plate and the lower partition plate.

Through the technical scheme, the diameter of the bump is the same as the gap distance between the upper partition plate and the lower partition plate, so that symmetrical semicircular grooves can be formed on two sides of the formed pile body, and the subsequent piles are conveniently connected with each other.

In a specific embodiment, the lug is detachably connected with the inner mold.

Through the technical scheme, the lug and the inner die are detachably connected, so that the lug can be replaced, and grooves with different sizes can be formed in the side wall of the pile body.

In a specific embodiment, the lug is magnetically connected with the inner mold.

Through above-mentioned technical scheme, adopt magnetism to inhale the formula and be connected between lug and the centre form, be convenient for the dismantlement and the installation between lug and the centre form.

In a specific possible implementation scheme, a fixed plate and a tensioning reaction plate for plugging two ends of the inner die are respectively arranged at two ends of the lower die in the length direction, a tensioning end plate is further arranged between the fixed plate and the tensioning reaction plate, one end of the tensioning end plate is connected with the tensioning reaction plate through a tensioning rod, a plurality of main rib fixed connecting holes are formed in the fixed plate and the tensioning end plate, and an opening penetrating through the end face of the fixed plate is formed in the center of the fixed plate.

Through above-mentioned technical scheme, through set up the stretch-draw end plate between fixed plate and stretch-draw reaction plate, can carry out the stretch-draw to the reinforcing bar in the pile body to make the main muscle in the pile body have prestressing force, thereby can realize having the preparation of prestressed pile.

In a specific possible embodiment, the upper partition plate and the upper die and the lower partition plate and the lower die are detachably connected.

Through above-mentioned technical scheme, through setting upper baffle, lower baffle to detachable structure, be convenient for change upper baffle, lower baffle realize the preparation of the different specifications of cell body of pile body lateral wall.

In a specific possible implementation scheme, the upper partition plate and the upper die and the lower partition plate and the lower die are connected in a magnetic type mode.

Through above-mentioned technical scheme, will go up the baffle, lower baffle adopts the connected mode of formula of magnetism, be convenient for go up the baffle, the installation and the dismantlement between the baffle down.

In a specific possible implementation scheme, the housing comprises an upper housing and a lower housing, wherein the upper housing is fixedly connected with the upper die, the lower housing is fixedly connected with the lower die, a connecting plate is further arranged between the upper housing and the lower housing, and the upper housing and the lower housing are locked through the connecting plate and the bolts.

Through above-mentioned technical scheme, go up between casing and the lower casing through connecting plate and bolt locking, can accomplish the location installation with upper and lower casing, and then drive mould and lower mould and accomplish the compound die.

In a specific embodiment, a rolling ring is further arranged on the shell.

Through the technical scheme, the mould can be integrally placed on a centrifugal machine for centrifugal forming by arranging the rolling ring.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through set up baffle and lower baffle on the centre form and separate into two parts with the centre form, and set up the clearance between last baffle and lower baffle, can be through the separation of last baffle and lower baffle, the pile body that the centrifugation formed in with the centre form separates into two parts, the hole is divided into the half slot on two pile body lateral walls by even in the middle of the centrifugation shaping, and a lateral surface of stake passes through the lug and forms the half slot, thereby realized two solid I shape stake of a mould preparation, the production efficiency is improved, compare in traditional centrifugation shaping hollow pile simultaneously, under the same circumstances of sectional area, the cross section girth is bigger, it is bigger with the side friction of ground, higher bearing capacity has.

2. In the preparation mould of this application, go up baffle, lower baffle and lug and all be detachable structure, can change through dismantling to realize the preparation of the solid I-shaped stake of different specifications.

Drawings

Fig. 1 is a schematic structural diagram of a preparation mold for a centrifugal concrete i-shaped pile according to the present invention.

Fig. 2 is a schematic view of the present invention showing the upper die structure.

Fig. 3 is a sectional view of the mold for preparing the centrifugal concrete i-shaped pile of the present invention.

Fig. 4 is a cross-sectional view of the support pile of the present invention after being formed.

Description of reference numerals:

1. a housing; 2. an inner mold; 3. a partition plate; 4. a bump; 5. rolling a ring; 6. supporting the rib plate; 7. a fixing plate; 8. tensioning the reaction plate; 9. tensioning the end plate; 10. stretching a pull rod; 11. an upper housing; 12. a lower housing; 13. a connecting plate; 14. the main reinforcement is fixedly connected with the connecting hole; 15. a centrifuge; 16. supporting piles; 21. an upper die, 22 and a lower die; 31. an upper partition plate; 32. a lower partition plate; 71. opening a hole; 161. a semicircular groove; 211. an upper slot; 221. and a lower slot.

Detailed Description

The present invention will be described in further detail with reference to the accompanying fig. 1-4.

Referring to fig. 1 to fig. 3, the embodiment discloses a mold structure for preparing a centrifugal concrete support pile, which includes an inner mold 2 and an outer shell 1, wherein the inner mold 2 and the outer shell 1 are welded through a support rib plate 6. The cross section of the inner mold 2 is of a rectangular structure, the cross section of the outer shell 1 is circular, an annular rolling ring 5 is arranged on the outer peripheral surface of the outer shell 1, and the annular rolling ring 5 is used for being placed on a centrifugal machine 15 for centrifugation.

The inner mold 2 comprises an upper mold 21 and a lower mold 22 which are symmetrical, the upper mold 21 and the lower mold 22 are divided along a diagonal line of a rectangular structure, the shell 1 comprises an upper shell 11 and a lower shell 12, and the cross sections of the upper shell 11 and the lower shell 12 are respectively of a semicircular structure. Be provided with on last casing 11 and lower casing 12 and be used for connecting fixed connecting plate 13 with last casing 11 and lower casing 12, can fix last casing 11 and lower casing 12 locking through adopting the locking bolt on connecting plate 13, go up mould 21 and lower mould 22 compound die this moment for interior mould 2 cross-section is the rectangle structure.

The two ends of the lower die 22 are respectively provided with a fixing plate 7 and a tension reaction plate 8, the fixing plate 7 and the tension reaction plate 8 are used for plugging the two ends of the inner die 2, in the embodiment, the fixing plate 7 and the tension reaction plate 8 are fixedly connected with the lower shell 12, and when the upper shell 11 is separated from the lower shell 12, the fixing plate 7 and the tension reaction plate 8 are connected to the lower shell 12. A plurality of main reinforcement fixing and connecting holes 14 are formed in the fixing plate 7, and the main reinforcement fixing and connecting holes 14 are used for connecting main reinforcements of the reinforcement cage. An opening 71 penetrating through two end faces of the fixing plate 7 is arranged in the center of the fixing plate 7, and the opening 71 is used for pumping concrete into a mold and pouring slurry after centrifugation.

A tension end plate 9 is further arranged between the fixed plate 7 and the tension reaction plate 8, the size of the section of the tension end plate 9 is similar to the size of the inner side of the section of the inner die 2 and is slightly smaller than the size of the inner die, one end of the tension end plate 9 is connected with the tension reaction plate 8 through a tension rod 10, and one end of the tension rod 10, which is far away from the tension end plate 9, extends out of the tension reaction plate 8 and is used for being connected with an external tension mechanism. And main reinforcement fixing and connecting holes 14 for connecting main reinforcements of the reinforcement cage are also formed in the tensioning end plates 9.

Be provided with baffle 3 on the inner wall of centre form 2, baffle 3 sets up on the long corresponding face in limit of rectangle of centre form 2, and baffle 3 distributes along the length direction of centre form 2, separates the long corresponding face symmetry in limit of rectangle. In this embodiment, the partition plate 3 includes an upper partition plate 31 and a lower partition plate 32, the upper partition plate 31 is provided on the upper die 21, the lower partition plate 32 is provided on the lower die 22, and a gap is provided between the upper partition plate 31 and the lower partition plate 32. The upper partition plate 31 is fixed at the center of the surface corresponding to the long edge of the upper die 21, the surface corresponding to the long edge of the upper die 21 is equally divided into two parts, and the upper partition plate 31 and the upper die 21 and the lower partition plate 32 and the lower die 22 are detachably connected, so that the preparation of the pile bodies with different specifications can be realized by replacing the upper partition plate 31 and the lower partition plate 32 with different lengths.

In this embodiment, the upper slot 211 is disposed on the surface corresponding to the long side of the upper mold 21, the upper partition 31 is inserted into the upper slot 211, and the upper partition 31 and the upper slot 211 are magnetically attracted to each other. The lower insert groove 221 is arranged on the surface corresponding to the long side of the lower mold 22, the lower partition plate 32 is inserted into the lower insert groove 221, and the lower partition plate 32 is connected with the lower insert groove 221 through magnetic attraction. After the die assembly is carried out, the upper partition plate 31 and the lower partition plate 32 are symmetrically arranged, and a gap is arranged between the upper partition plate 31 and the lower partition plate 32, wherein the gap is the diameter of a middle hole formed by centrifugal molding after concrete is injected into the inner die 2.

The convex blocks 4 are arranged on the corresponding surfaces of the inner die 2 with short sections, and the convex blocks 4 are of semicircular structures. While the center point of the gap between the upper 31 and lower 32 partitions is on the line connecting the centers of the two projections 4. The lug 4 and the inner die 2 are detachably connected, in the embodiment, the lug 4 and the inner die 2 are connected in a magnetic type mode, so that different lugs 4 can be replaced to prepare pile bodies with different specifications.

Through the mould of the preparation of the centrifugal concrete support pile of this embodiment, prepare and obtain centrifugal concrete support pile, as shown in fig. 4, go up baffle 31 and lower baffle 32 and separate the concrete structure in centre form 2 into two support piles 16, the clearance between last baffle 31 and the lower baffle 32 is the diameter of the hole that the concrete centrifugation formed in centre form 2, through the split back, two support piles 16 respectively have a semicircular groove 161 to the one side that is close to, one side that two support piles 16 kept away from mutually respectively forms a semicircular groove 161 through lug 4. Each support pile 16 is an i-shaped solid concrete pile.

Claims

1. The utility model provides a preparation mould of centrifugal concrete I-shaped pile which characterized in that: the cross section of the inner die (2) is of a rectangular structure, the inner die (2) comprises an upper die (21) and a lower die (22), a partition plate (3) is arranged on the inner wall of the inner die (2), the partition plate (3) is arranged on a surface corresponding to the long rectangular edge of the inner die (2), and the partition plate (3) is distributed along the length direction of the inner die (2) to symmetrically partition the surfaces corresponding to the long rectangular edges; the partition plate (3) comprises an upper partition plate (31) and a lower partition plate (32), the upper partition plate (31) is arranged on the upper die (21), the lower partition plate (32) is arranged on the lower die (22), and a gap is formed between the upper partition plate (31) and the lower partition plate (32); the cross section of the inner die (2) is provided with a convex block (4) on the corresponding surface of the short side, and the convex block (4) is of a semicircular structure.

2. The preparation mould of centrifugal concrete I-shaped pile according to claim 1, characterized in that: the diameter of the bump (4) is the same as the distance of the gap between the upper partition plate (31) and the lower partition plate (32).

3. The preparation mould of centrifugal concrete I-shaped pile according to claim 1, characterized in that: the lug (4) is detachably connected with the inner die (2).

4. The preparation mould of centrifugal concrete I-shaped pile of claim 3, characterized by: the lug (4) is connected with the inner die (2) in a magnetic type.

5. The preparation mould of centrifugal concrete I-shaped pile according to claim 1, characterized in that: the two ends of the lower die (22) in the length direction are respectively provided with a fixed plate (7) and a tension reaction plate (8) which are used for plugging the two ends of the inner die (2), a tension end plate (9) is further arranged between the fixed plate (7) and the tension reaction plate (8), one end of the tension end plate (9) is connected with the tension reaction plate (8) through a tension rod (10), a plurality of main rib fixed connecting holes (14) are formed in the fixed plate (7) and the tension end plate (9), and an opening hole (71) penetrating through the end face of the fixed plate (7) is formed in the center of the fixed plate (7).

6. The preparation mould of centrifugal concrete I-shaped pile according to claim 1, characterized in that: the upper partition plate (31) is detachably connected with the upper die (21), and the lower partition plate (32) is detachably connected with the lower die (22).

7. The preparation mould of centrifugal concrete I-shaped pile of claim 6, characterized by that: the upper partition plate (31) and the upper die (21) and the lower partition plate (32) and the lower die (22) are connected in a magnetic type.

8. The preparation mould of centrifugal concrete I-shaped pile according to claim 1, characterized in that: shell (1) include casing (11) and casing (12) down, wherein go up casing (11) with last mould (21) fixed connection, casing (12) and lower mould (22) fixed connection down still are provided with connecting plate (13) between last casing (11) and casing (12) down, go up between casing (11) and casing (12) down through connecting plate (13) and bolt locking.

9. The preparation mould of centrifugal concrete I-shaped pile according to claim 8, characterized in that: the shell (1) is also provided with a rolling ring (5).