CN213617375U

CN213617375U - Internal mold floating-up prevention device

Info

Publication number: CN213617375U
Application number: CN202021947572.8U
Authority: CN
Inventors: 王得林; 罗云; 常伟斌; 赵祥林; 王渊; 陈雪芹
Original assignee: CRCC Harbour and Channel Engineering Bureau Group Co Ltd
Current assignee: CRCC Harbour and Channel Engineering Bureau Group Co Ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-07-06
Anticipated expiration: 2030-09-08

Abstract

The utility model discloses a prevent centre form come-up device, include: the inner side of the bottom die is provided with an inner cavity; at least one pull rod fixedly connected to the bottom side of the inner cavity; the supporting piece is fixedly connected to the pull rod; the two side dies are arranged at two ends of the inner cavity and are fixedly connected with the bottom die; the inner die is arranged in the inner cavity and forms a pouring cavity with the bottom die and the two side dies, and the inner die is fixedly connected with the supporting piece. The utility model discloses the square tube and the pull rod that pre-buried in advance are connected with support piece when utilizing the construction of case roof beam platform, fix support piece in the die, can prevent the centre form come-up, and connection structure is simple, simple to operate, and is less to the influence of workman's walking.

Description

Internal mold floating-up prevention device

Technical Field

The utility model relates to an engineering and construction technical field, in particular to prevent centre form come-up device.

Background

In the prefabricated construction of present bridge trabecula, the device that floats on preventing centre form of general adoption is for setting up the depression bar at the template top, and the depression bar adopts the shaped steel preparation, and after box girder centre form and roof reinforcing bar installation were accomplished, at the one depression bar of template top every 3 meters installation, the depression bar is provided with the fore-set, and the tight centre form in top prevents to pour concrete process centre form come-up. In the use process, firstly, the compression bar is large in size, is made of profile steel, is heavy and needs to be installed by adopting hoisting equipment; secondly, the top of the box girder template is provided with a side mould pull rod with the length of 1m1, an inner mould pressing rod with large size is arranged at the vacant position, and workers stand on the top plate to pour concrete, so that the blockage is more, the walking is inconvenient, and safety accidents are easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a prevent centre form come-up device can solve and prevent in the prefabricated construction of existing case roof beam that the centre form come-up device installation is inconvenient and occupy the great construction problem who pours the space.

According to the utility model discloses a prevent centre form come-up device of first aspect embodiment, include: the inner side of the bottom die is provided with an inner cavity; the pedestal is arranged at the bottom of the bottom die; at least one pull rod penetrates through the inner cavity and the bottom die and is fixedly connected to the pedestal; the supporting piece is fixedly connected to the pull rod; the two side dies are respectively arranged on two sides of the inner cavity and are fixedly connected with the bottom die; the inner die is arranged in the inner cavity and forms a pouring cavity with the bottom die and the two side dies, and the inner die is fixedly connected with the supporting piece.

According to the utility model discloses prevent centre form come-up device has following beneficial effect at least: the square tube and the pull rod which are pre-buried in advance during the construction of the box girder platform are connected with the supporting piece, the supporting piece is fixed in the bottom die, the inner die can be prevented from floating upwards, the connecting structure is simple, the installation is convenient, and the influence on the walking of workers is small.

According to some embodiments of the utility model, the die block with at least a square steel has set firmly between the pedestal, fixed connection has a bottom nut on the square steel, pull rod fixed connection is in on the bottom nut.

According to some embodiments of the invention, the bottom nut is welded on the square steel.

According to some embodiments of the invention, the pull rod is provided with a step and a top nut, the pull rod passes through the support piece, the support piece is fixed between the step and the top nut.

According to the utility model discloses a some embodiments, the cover is equipped with protective case on the pull rod, protective case's both ends butt respectively is in end nut with on the centre form.

According to some embodiments of the invention, the protective sleeve is a PVC pipe.

According to some embodiments of the utility model, support piece comprises a plurality of I-steel, the mode fixed connection that the I-steel passes through bolted connection is in on the centre form.

According to some embodiments of the utility model, fixedly connected with connection steel plate between the I-steel.

According to some embodiments of the utility model, the pull rod is finish rolling screw-thread steel.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of an external mold according to an embodiment of the present invention;

fig. 2 is a schematic diagram of the internal structure of the embodiment of the present invention;

fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

The attached drawings are marked as follows:

the structure comprises a pedestal 100, a bottom die 110, angle steel 111, side dies 120, an end die 130, an inner cavity 140, an inner die 200, a pull rod 400, square steel 500, a support 600, a top nut 700, a protective sleeve 800 and a bottom nut 900.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the present number, and the terms greater than, less than, within, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

The inner mold floating prevention device according to an embodiment of the present invention will be described below with reference to fig. 1 to 3.

As shown in fig. 1 to 3, an inner mold floating-up prevention device includes a pedestal 100, a bottom mold 110, a pull rod 400, a support 600, side molds 120 and an inner mold 200, the pedestal 100 is disposed at a bottom side of the bottom mold 110, an inner cavity 140 is disposed at an inner side of the bottom mold 110, the side molds 120 are fixedly connected to the bottom mold 110, the side molds 120 are disposed at two sides of the inner cavity 140, the inner mold 200 is disposed in the inner cavity 140, two ends of the inner mold 200 are respectively fixedly connected to the two side molds 120, the bottom mold 110 and the inner mold 200 form a casting cavity, and the casting cavity is cast to form a box girder. At least one pull rod 400 is also arranged and correspondingly fixedly connected to the bottom side of the inner cavity 140, the pull rod 400 is fixedly connected to the pedestal 100 through the inner cavity 140 and the bottom die 110, the support member 600 is fixedly connected to the pull rod 400, the inner die 200 is fixedly connected to the support member 600, and the support member 600 and the pull rod 400 are used as tension structures of the inner die 200 to prevent the inner die 200 from floating in the pouring process. The end molds 130 are disposed at both ends of the bottom mold 110, and the end molds 130 form an inner cavity 140 together with the bottom mold 110 and the side mold 120.

During the concrete implementation, pour the in-process, the die cavity is filled up gradually to the thick liquid, has ascending buoyancy to interior mould 200, and pull rod 400 passes through support piece 600 pulling centre form 200, prevents centre form 200 come-up to reach the technological effect that prevents centre form 200 and go up superficial, whole module simple structure, simple to operate, and do not hinder constructor's walking.

In some embodiments of the present invention, the pedestal 100 is disposed on the bottom side of the bottom die 110, at least one square steel 500 is disposed between the pedestal 100 and the bottom die 110, the upper end of the pull rod 400 is fixedly connected to the inner die 200, a bottom nut 900 is fixedly connected to the square steel 500, the steel 500 is fixedly connected to the pull rod 400 above the bottom nut 900, and the steel 500 is fixedly connected to the bottom nut 900 by bolts, so that the bottom of the pull rod 400 is fixedly connected to the square steel 500 of the pedestal 100, the bottom nut 900 is fixedly connected to the square steel 500, and the pull rod 400 is fixedly connected to the bottom nut 900. The bottom end of the pull rod 400 is provided with an external thread, and the pull rod 400 is connected to the bottom nut 900 through the external thread. By adopting the structural design, the square steel 500 has two functions, namely, the square steel 500 and the bottom die 110 form a whole body to bear the pulling force generated when the inner die 200 floats; secondly, the hollow structure of the square steel 500 is convenient for dredging concrete slag generated by the screw cap when the bottom screw cap 900 is blocked. In this embodiment, the square steel 500 is a square tube with a diameter of 90 × 5mm, and is embedded in the bottom mold 110 at 3m intervals perpendicular to the axis of the bottom mold 110, and the embedding depth is 5 cm. The square steel 500 may be fixedly connected to the base 100 by welding, or by means of screws or bolts, and the square steel 500 may serve to support the bottom die 110. In this embodiment, the bottom die 110 is a steel plate with a thickness of 6mm, two sides of the bottom die are respectively and fixedly connected with two angle steels 111, the angle steels 111 are fixedly connected to the square steel 500, and the angle steels 111 can be fixed to the bottom of the bottom die 110 in a welding manner and fixed to the square steel 500 in a bolt connection manner.

Specifically, the bottom nut 900 may be welded to the square steel 500 by welding, and the pull rod 400 may be fixedly connected to the bottom side of the inner cavity 140 by welding or other methods.

In some embodiments of the present invention, a step portion and a top nut 700 are disposed on the pull rod 400, the top nut 700 is screwed on the pull rod 400 and located on the upper side of the step portion, the support 600 is passed through the upper end of the pull rod 400, the support 600 is fixed between the step portion and the top nut 700, the step portion is abutted on the support 600, the top nut 700 is screwed on the pull rod 400, and the support 600 is fixedly connected to the pull rod 400 by rotating the distance between the step portion and the step portion. In addition, the pull rod 400 and the support 600 may be connected by other connection means, which are not limited to the above-mentioned one.

In some embodiments of the utility model, the pull rod 400 is a screw rod for with end screw thread and top thread threaded connection, the cover is equipped with protective sleeve 800 on the pull rod 400, protective sleeve 800 is used for protecting pull rod 400, protective sleeve 800's both ends respectively the butt on end nut 900 and support piece 600, or respectively the butt on centre form 200 and support piece 600, thereby the thick liquid of avoiding pouring solidifies on pull rod 400 with the adhesion of pull rod 400 contact.

Specifically, the protective sleeve 800 is a PVC pipe, which has good stability and can protect the pull rod 400 well.

The utility model discloses an in some embodiments, support piece 600 comprises a plurality of I-steel, and the mode fixed connection that the I-steel passes through bolted connection is on centre form 200, realizes the dismouting fixed connection mode of being convenient for of support piece 600 and centre form 200. The I-steel is double-spliced I-steel, M25 finish rolling deformed steel bar nuts are adopted for the top screw rod and the bottom nut 900, and the pull rod 400 is finish rolling deformed steel bar, so that the structure is stable and firm, and a good anti-floating effect can be achieved.

Specifically, a connecting steel plate is connected between the I-shaped steel and used for reinforcing a connecting structure between the I-shaped steel and improving the stability of the connecting structure.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a prevent centre form come-up device which characterized in that includes:

the inner side of the bottom die (110) is provided with an inner cavity (140);

a base (100) provided at the bottom of the bottom mold (110);

at least one pull rod (400) which passes through the inner cavity (140) and the bottom die (110) and is fixedly connected to the pedestal (100);

a support (600) fixedly connected to the pull rod (400);

the two side dies (120) are respectively arranged on two sides of the inner cavity (140) and are fixedly connected with the bottom die (110);

the internal mold (200) is arranged in the inner cavity (140) and forms a pouring cavity with the bottom mold (110) and the two side molds (120), and the internal mold (200) is fixedly connected with the supporting piece (600).

2. The internal mold floating-up prevention device according to claim 1, wherein at least one square steel (500) is fixedly arranged between the bottom mold (110) and the pedestal (100), a bottom nut (900) is fixedly connected to the square steel (500), and the pull rod (400) is fixedly connected to the bottom nut (900).

3. The internal mold floating-up prevention device according to claim 2, wherein the bottom nut (900) is welded on the square steel (500).

4. The internal mold floating-up preventing device according to claim 1, wherein a stepped portion and a top nut (700) are provided on the pull rod (400), the pull rod (400) passes through the support (600), and the support (600) is fixed between the stepped portion and the top nut (700).

5. The device for preventing the internal mold from floating upwards as claimed in claim 3, wherein the pull rod (400) is sleeved with a protective sleeve (800), and two ends of the protective sleeve (800) are respectively abutted against the bottom nut (900) and the internal mold (200).

6. The internal mold floating-up prevention device according to claim 5, wherein the protective sleeve (800) is a PVC pipe.

7. The device for preventing the internal mold from floating upwards according to claim 1, wherein the supporting member (600) is composed of a plurality of I-shaped steel, and the I-shaped steel is fixedly connected to the internal mold (200) in a bolt connection mode.

8. The device for preventing the internal mold from floating upwards according to claim 7, wherein a connecting steel plate is fixedly connected between the I-shaped steels.

9. The internal mold floating-up prevention device according to claim 1, wherein the tie rod (400) is finish-rolled deformed steel bar.