CN211993468U

CN211993468U - Special forming die of prefabricated bridge beam slab

Info

Publication number: CN211993468U
Application number: CN202020320358.3U
Authority: CN
Inventors: 杨林
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-11-24
Anticipated expiration: 2030-03-16

Abstract

The utility model discloses a special forming die for precast bridge beam slab, which relates to the technical field of precast beam slab in building engineering, comprising a base plate, an outer die frame and a core die, wherein the core die comprises an inflatable rubber air bag, a core die frame and an elastic rubber air bag, the inner part of the core die frame is the inflatable rubber air bag, the outer part is the elastic rubber air bag, the core die frame comprises an upper frame plate, a lower frame plate, a left frame plate, a right frame plate, an upper frame plate, a right frame plate, two movable plates are arranged in the frame plates, the end parts of the movable plates are connected on a fixed rod through lantern rings, the hollow core of the box beam slab is supported through the arranged core die, the size of the core die frame is changed through the inflatable rubber air bag, when the die is filled with concrete, the size of the core die frame is adjusted to a required size through inflation, the elastic rubber air bag tightly, the finished product quality of the prefabricated bridge beam plate is improved.

Description

Special forming die of prefabricated bridge beam slab

Technical Field

The utility model relates to a building engineering precast beam board technical field specifically is a special forming die of prefabricated bridge beam board.

Background

The reinforced concrete box girder is one of important structures in bridge engineering and is divided into a prefabricated box girder and a cast-in-place box girder according to a concrete pouring mode. The inner die of the prefabricated box girder is mainly a template which is processed by different materials in order to achieve the geometric dimension required by design, has enough bearing capacity and can bear the dead load generated by concrete and the live load generated by small-sized machines and constructors. The prefabricated box girder is prefabricated in advance in an independent field, and then is hoisted after the bridge substructure is completed, so that construction cross interference can be effectively avoided, the project progress is greatly improved, the construction period is saved, and the prefabricated box girder is widely applied.

Core membrane adopts the rubber gasbag to fix on forming die's bottom plate in current precast beam forming die, inject into the air through the air pump and blow up the shaping with it, then cement is pour, the inside gas of rubber gasbag is emitted after cement pouring finishes, then take out the gasbag, but building engineering's work receives environmental factor very big, sometimes can take extension precast beam according to the site environment, the span that will add precast beam like this, it is very big to precast beam's intensity requirement, if still adopt single gasbag as core membrane then can lead to the gasbag crooked or concrete to distribute unevenly, the uneven intensity that can seriously influence precast beam of concrete distribution, be unfavorable for whole building engineering's installation and later stage and use.

The application publication number is CN 110480803A's Chinese invention patent, discloses a special forming die for precast beam slab, including base plate, outer die carrier and core membrane, outer die carrier fixed mounting is on the base plate, the core membrane sets up in outer die carrier and core membrane and outer die carrier cooperation are connected along precast beam length direction, the core membrane is the integral type structure of constituteing by core membrane frame and rubber gasbag, the rubber gasbag cover is established in the outside of core membrane frame and rather than fixed connection. Although the mold is provided with the core mold frame, the outer part of the mold is provided with the inflatable rubber air bag, the core mold frame is not directly contacted with concrete, the inflated rubber air bag is directly contacted with the concrete, the air bag is inclined or the concrete is unevenly distributed, and therefore a more reasonable precast beam slab mold needs to be designed.

SUMMERY OF THE UTILITY MODEL

In view of the not enough and defect that exists among the prior art, the utility model provides a special forming die of prefabricated bridge beam slab, simple structure utilizes the mandrel of variable size, when conveniently taking out, can play better fixed stay to the concrete for solve the problem that appears in the background art.

In order to solve the technical problem, the utility model discloses a following technical scheme: a special forming die for a prefabricated bridge beam slab comprises a base plate, an outer die frame and a core die; the outer formwork comprises a bottom formwork, two side formworks, a top formwork and two end formworks, wherein the bottom formwork is fixedly connected with a base plate, the two side formworks are respectively arranged on two sides of the bottom formwork in the length direction and are respectively hinged with the bottom formwork through hinges, the top formwork is positioned above the bottom formwork and is parallel to the bottom formwork, two ends of the top formwork are respectively connected with the two side formworks in a buckling mode, the two end formworks are distributed on two ends of the bottom formwork in the length direction, the bottom end of each end formwork is movably connected with the bottom formwork, two side ends of each end formwork are respectively movably connected with the two side formworks, and the top formwork is hermetically connected with the two end formworks when covered; the core mould comprises an inflatable rubber air bag, a core mould frame and an elastic rubber air bag, the inflatable rubber air bag is arranged inside the core mould frame, the elastic rubber air bag is arranged outside the core mould frame, the core mould frame comprises 4 frame plates which are arranged from top to bottom and from left to right, the frame plates are hollow, two movable plates are arranged inside the frame plates and can move towards two ends of the frame plates respectively, the end parts of the movable plates are connected onto fixing rods through lantern rings, the movable plates in two directions are sleeved on 1 fixing rod, the core mould frame comprises 4 fixing rods in total, and the 4 fixing rods form a frame by enabling the 4 frame plates to pass through the movable plates.

As a further improvement, the two ends of the movable plate are provided with lugs, the two ends of the frame plate are provided with slides, and the lugs and the slides are matched with each other to slide.

As a further improvement of the utility model, the elastic rubber airbag with end template contact department is for opening to sealing connection, inflatable rubber airbag is air bag, is equipped with the inflation inlet, inflation inlet department is equipped with the air pump.

As a further improvement, 2 on the end template with 4 the relative position department of deckle board all is provided with the electro-magnet, the material of deckle board is for can by the absorbent material of electro-magnet.

Compared with the prior art, the utility model discloses the beneficial effect who has does: the utility model discloses a core mould that sets up supports the hollow of case roof beam slab, framed slab and the movable plate that sets up in the core mould frame, change the size of core mould frame through aerifing rubber air bag, when filling the concrete for the mould, adjust the size of needs to the size of core mould frame through aerifing, outside elastic rubber air bag can change along with the size change of core mould frame, elastic rubber air bag both ends open, do not have gas, prop up by core mould frame, elastic rubber air bag is behind core mould frame grow promptly, tightly surround the core mould frame, effectively avoided crooked and the uneven problem of concrete distribution of rubber air bag, the finished product quality of prefabricated bridge beam slab has been improved.

Drawings

The invention will be further described with reference to the accompanying drawings and specific embodiments:

fig. 1 is a schematic structural view of the core mold of the present invention when supported;

fig. 2 is a schematic view of one of the faces of the core mold frame;

fig. 3 is a schematic structural view of the core mold when the core mold of the present invention is contracted.

In the figure: 1. the base plate, 2, the outer die frame, 201, the side die plate, 202, the bottom die plate, 203, the top die plate, 3, the core die, 301, the elastic rubber air bag, 302, the frame plate, 303, the moving plate, 304, the fixing rod, 305, the inflatable rubber air bag, 306, the collar, 307, the slide way and 308, the bump.

It is noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; 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.

Detailed Description

In order to make the technical solution and the advantages of the present invention more clear and more obvious, the present invention is further described in detail with reference to the accompanying drawings and the specific embodiments, it should be understood that the specific embodiments described herein are only used for understanding the present invention, and are not used for limiting the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the special forming mold for a prefabricated bridge beam slab of the present invention comprises a base plate 1, an outer mold frame 2 and a core mold 3; the outer die carrier 2 comprises a bottom die plate 202, two side die plates 201, a top die plate 203 and two end die plates, wherein the bottom die plate 202 is fixedly connected with the base plate 1, the two side die plates 201 are respectively arranged at two sides of the bottom die plate 202 in the length direction and are respectively hinged with the bottom die plate 202 through hinges, the top die plate 203 is positioned above the bottom die plate 202 and is parallel to the bottom die plate 202, two ends of the top die plate 203 are respectively connected with the two side die plates 201 in a buckling manner, the two end die plates are distributed at two ends of the bottom die plate 202 in the length direction, the bottom ends of the end die plates are movably connected with the bottom die plate 202, two side ends of the end die plates are respectively movably connected with the two side die plates 201;

the core mold 3 comprises an inflatable rubber airbag 305, a core mold frame and an elastic rubber airbag 301, the inflatable rubber airbag 305 is arranged inside the core mold frame, the elastic rubber airbag 301 is arranged outside the core mold frame, the core mold frame comprises 4 frame plates 302 which are arranged in the upper, lower, left and right directions, the frame plates 302 are hollow, two moving plates 303 are arranged inside the frame plates 302, the moving plates 303 can move towards two ends of the frame plates 302 respectively, the end parts of the moving plates 303 are connected to fixing rods 304 through lantern rings 306, the moving plates 303 in two directions are sleeved on 1 fixing rod 304, the core mold frame comprises 4 fixing rods 304, and the 4 fixing rods 304 form a frame by combining the 4 frame plates 302 through the moving plates 303. The two ends of the moving plate 303 are provided with bumps 308, the two ends of the interior of the frame plate 302 are provided with slideways 307, and the bumps 308 and the slideways 307 are matched with each other to slide. The contact position of the elastic rubber air bag 301 and the end formwork is open and is in sealing connection when concrete is poured, the inflatable rubber air bag 305 is a sealed air bag and is provided with an inflation inlet, and an air pump is arranged at the inflation inlet.

Electromagnets are arranged at the positions, opposite to the 4 frame plates 302, of the 2 end templates, and the frame plates 302 are made of materials capable of being adsorbed by the electromagnets.

When the device works, two end templates are inserted into corresponding positions on a bottom template, two side templates are driven to rotate through an oil cylinder, a core film is put into the device from the top of an outer mold frame, the power supply of an electromagnet on the end templates is turned on, at the moment, a core film frame can be fixedly adsorbed on the end templates by the electromagnet, an air pump of an inflatable rubber air bag is turned on to inflate the core film frame, the inflatable rubber air bag is gradually enlarged in the inflating process, a fixing rod of a core mold frame is gradually pushed away by the enlarged air bag, the volume of the core mold frame is gradually enlarged, the outer elastic rubber air bag tightly surrounds the core mold frame, when the size of the core mold frame reaches the standard, the air pump is turned off, then the top template is covered, concrete is poured, the mold is vibrated at high frequency by a vibrator while the concrete is poured, the concrete is uniformly poured, the electromagnet on the end templates can be powered off after, after concrete is poured, solidified and formed, the top formwork is taken down, the oil cylinder is operated reversely to separate the side formworks, then the two end formworks are taken down to release gas in the inflatable rubber air bag, the core formwork shrinks under the shrinking force of the elastic rubber air bag, in the shrinking process, the fixed rod drives the movable plate to shrink back into the frame plate, as shown in figure 3, so that the core formwork and the concrete are completely peeled off, then the core formwork is taken out, and the concrete is cured in the later period.

In the process, the elastic rubber air bag tightly surrounds the core mould frame after the core mould frame is enlarged, so that the problems of the rubber air bag deflection and the uneven distribution of concrete are effectively avoided, and the finished product quality of the precast bridge beam slab is improved.

Claims

1. The utility model provides a special forming die of prefabricated bridge beam slab which characterized in that: comprises a substrate (1), an outer mold frame (2) and a core mold (3);

the outer die carrier (2) comprises a bottom die plate (202), two side die plates (201), a top die plate (203) and two end die plates, wherein the bottom die plate (202) is fixedly connected with the base plate (1), the two side die plates (201) are respectively arranged on two sides of the bottom die plate (202) in the length direction and are respectively hinged with the bottom die plate (202) through hinges, the top die plate (203) is positioned above the bottom die plate (202) and is parallel to the bottom die plate (202), two ends of the top die plate (203) are respectively connected with the two side die plates (201) in a buckling mode, the two end die plates are distributed at two ends of the bottom die plate (202) in the length direction, the bottom ends of the end die plates are movably connected with the bottom die plate (202), two side ends of the end die plates are respectively movably connected with the two side die plates (201), and the top die plate (203) is hermetically connected;

the core mold (3) comprises an inflatable rubber air bag (305), a core mold frame and an elastic rubber air bag (301), the inner part of the core mold frame is the inflatable rubber air bag (305), the outer part is the elastic rubber air bag (301), the core mold frame comprises 4 frame plates (302) which are arranged at the upper, lower, left and right sides, the frame plates (302) are hollow, two moving plates (303) are arranged inside the frame plate (302), the moving plates (303) can respectively move towards two ends of the frame plate (302), the end part of the moving plate (303) is connected to a fixed rod (304) through a lantern ring (306), the moving plate (303) in two directions is sleeved on 1 fixed rod (304), the core mold frame comprises 4 fixed rods (304), and the 4 fixed rods (304) form a frame by combining 4 frame plates (302) through the moving plate (303).

2. The special forming die for the prefabricated bridge beam plate according to claim 1, wherein the special forming die comprises: the two ends of the moving plate (303) are provided with convex blocks (308), the two ends of the interior of the frame plate (302) are provided with slide ways (307), and the convex blocks (308) and the slide ways (307) are matched with each other to slide.

3. The special forming die for the prefabricated bridge beam plate according to claim 1, wherein the special forming die comprises: the elastic rubber air bag (301) is open at the contact position with the end formwork and is in sealing connection when concrete is poured, the inflatable rubber air bag (305) is a sealed air bag and is provided with an inflation inlet, and an air pump is arranged at the inflation inlet.

4. The special forming die for the prefabricated bridge beam plate according to claim 1, wherein the special forming die comprises: electromagnets are arranged at the positions, opposite to the 4 frame plates (302), of the 2 end templates, and the frame plates (302) are made of materials capable of being adsorbed by the electromagnets.