CN204804318U - Building templates that bottom mounting is firm - Google Patents

Abstract

The utility model discloses a building formwork whose bottom end is firmly fixed, comprising an outer formwork and an inner formwork, connecting bolts are arranged between the inner and outer formworks, and an aluminum foil layer is respectively provided on the inner surface of the outer formwork and the inner surface of the inner formwork; Both the outer formwork and the inner formwork are provided with a horizontal splicing structure; the horizontal splicing structure includes a left groove arranged on the left surface of the inner and outer formwork and a right rib arranged on the right surface of the inner and outer formwork, and the right rib and the left The grooves are adapted to each other; the bottom of the outer formwork is supported on a horizontal support plate, and the horizontal support plate is connected with a pressure plate downward, and the pressure plate is fixed on the lower wall through the support assembly; this formwork can be firmly supported on the poured In terms of the building structure, it can prevent the construction quality from falling due to unstable support; at the same time, this formwork can improve the flatness of the poured outer wall.

Description

Building formwork fixed firmly at the bottom

technical field

The utility model relates to the technical field of buildings, in particular to a building formwork.

Background technique

In the field of building construction, it is often necessary to cast the exterior wall after the formwork is erected. In the traditional exterior wall construction, the formwork is often supported by the bolt-to-formwork method. After the construction of the exterior wall of the building is completed, in order to ensure the waterproof, heat preservation, corrosion resistance and other effects of the building, further construction is required on the surface of the exterior wall.

There are following technical problems in existing building formwork:

1. For the consideration of cost and ease of manufacture, installation and use, most of the existing building formwork is wood formwork. After the external wall is poured with wooden formwork, the external wall is not smooth enough, so when plastering the wall, the thickness of the ash layer must be increased, increasing the amount of materials and construction costs.

2. The size of a single formwork is limited, and sometimes several formworks need to be spliced together for use, such as horizontal splicing to meet the needs of pouring longer exterior walls, or up and down splicing to meet the needs of pouring high-story exterior walls. The existing formwork is not easy to splice, which reduces the construction efficiency; leakage is prone to occur at spliced joints, resulting in waste of materials.

3. After splicing several templates together for use, due to the lack of locking structure between adjacent templates, it is easy to disengage due to vibration.

4. When the first layer of concrete on the outer wall is poured and the concrete above the second layer is poured, the vertical first-layer building formwork supported on the poured building structure is not easy to be fixed firmly on the building structure, and the upper and lower layers of the building structure are connected. Concrete mud and unevenness after pouring are prone to occur at the base. If the building formwork is used to pour the outer wall, the connection bolt holes will be left after the formwork is removed, and the connection bolt holes on the lower wall cannot be used in the current construction.

Utility model content

The purpose of this utility model is to provide a kind of building formwork whose bottom end is firmly fixed. This formwork can be firmly supported on the poured building structure, so as to prevent the construction quality from falling due to unstable support; The flatness of the outer wall.

In order to achieve the above-mentioned purpose, the building formwork with the fixed bottom of the utility model includes wooden outer formwork and inner formwork, and connecting bolts are arranged between the inner and outer formworks. It is characterized in that: the outer formwork and the inner formwork have the same structure, the outer formwork and the inner formwork The formwork is provided with two horizontal reinforcement boards arranged at intervals up and down, and more than three vertical reinforcement boards are connected between the horizontal reinforcement boards;

The inner surface of the outer template and the inner surface of the inner template are respectively provided with an aluminum foil layer;

Both the outer formwork and the inner formwork are provided with a horizontal splicing structure; the horizontal splicing structure includes a left groove arranged on the left surface of the inner and outer formwork and a right rib arranged on the right surface of the inner and outer formwork, and the right rib and the left The grooves fit into each other;

The bottom of the outer formwork is supported on a horizontal support plate, and the horizontal support plate is downwardly connected with a pressure plate, and the pressure plate is fixed on the lower wall through a support assembly; the support assembly includes connecting bolt holes passing through the pressure plate and the lower wall The supporting bolts on the pressing plate and the supporting bolts on both sides of the lower wall are respectively provided with locking nuts, and the locking nuts lock the pressing plate and the lower wall together.

One end of the connecting bolt is provided with a lock nut and the other end is provided with a butterfly lock; the middle part of the connecting bolt is provided with a wall-penetrating protective sleeve.

The cross-section of the left groove is a three-stage stepped groove, including the outermost stepped groove part, the middle layer stepped groove part and the innermost layer stepped groove part; the outermost stepped groove part is trumpet-shaped;

The cross-section of the right convex rib is a three-level step edge adapted to the three-level step groove, including the outermost step edge part, the middle layer step edge part and the innermost layer step edge part; the outermost step edge part The part fits with the innermost step groove part, the middle layer step rib part fits with the middle layer step groove part, and the innermost step rib part is in a trumpet shape matching with the outermost step groove part.

The utility model has the following advantages:

The setting of the aluminum foil layer can greatly improve the flatness of the concrete poured external wall, and reduce the thickness of the gray layer of the wall plaster after pouring, save raw materials, improve the construction quality, and reduce the construction cost. Compared with the aluminum alloy formwork, the cost of the formwork is greatly reduced by setting the aluminum foil layer on the wooden outer formwork and inner formwork.

The left groove and the right rib form a left mortise and right tenon structure, which is convenient for horizontal splicing. When splicing horizontally, the utility model can be conveniently spliced horizontally by inserting the right rib of the first formwork into the left groove of the second formwork, which is suitable for construction occasions with long outer walls. Convenient splicing improves construction efficiency, and the joints with mortise and tenon joints are less prone to concrete leakage than flat joints, reducing construction waste.

A horizontal support plate, a pressure plate, support bolts and corresponding lock nuts form a support assembly. When the building structure of the first floor is completed and it is necessary to pour the outer wall of the upper layer of the building, the supporting bolts will pass through the connecting bolt holes on the pressure plate and the outer wall of the lower layer (use the building formwork to pour the outer wall, and the connecting bolts will be left after the formwork is removed. hole), and then use the lock nut to lock the pressure plate on the outer wall of the lower building. At this time, the horizontal support plate can be used to stably and reliably support the upper building formwork (outer formwork) (the inner formwork in the upper building formwork is directly supported On the top of the already constructed substructure), it is very convenient and stable to support, and it is not easy to leak when pouring concrete, so as to prevent the leakage of concrete at the junction of the upper and lower walls and the unevenness of the outer wall after construction.

The arrangement of the horizontal reinforcing plate and the vertical reinforcing plate greatly increases the structural strength of the utility model. The utility model can be disassembled and installed repeatedly, and can be used repeatedly, thereby saving the use cost.

The left groove is a three-level stepped groove, and the right convex edge is a three-level stepped edge. On the one hand, this setting is more convenient for splicing, so that the convex edge can be inserted into the groove without completely facing the groove. On the other hand, the convex edge is greatly extended. The joint between the groove and the groove, and make the joint zigzag; the zigzag and extended joint has better sealing performance, and it is less likely to leak when pouring concrete.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a top view of Fig. 1 after the splicing assembly is removed;

Fig. 3 is a schematic cross-sectional structure diagram of the utility model when supported on the lower building structure;

Fig. 4 is a schematic top view of two outer formworks spliced together horizontally;

Fig. 5 is a structural schematic diagram of a three-stage step groove;

Fig. 6 is a structural schematic diagram of three-level stepped ribs.

Detailed ways

As shown in Fig. 1 to Fig. 6, the building formwork that the bottom end of the utility model is fixed firmly comprises wooden outer formwork 1 and inner formwork 2, is provided with connecting bolt 3 between inner and outer formwork 2,1, outer formwork 1 and inner formwork 2 The structure is the same, the outer formwork 1 and the inner formwork 2 are respectively provided with two horizontal reinforcement plates 4 arranged at intervals up and down, and more than three vertical reinforcement plates 5 are connected between the horizontal reinforcement plates 4;

The inner surface of the outer formwork 1 and the inner surface of the inner formwork 2 are respectively provided with an aluminum foil layer 6;

Both the outer formwork 1 and the inner formwork 2 are provided with a horizontal splicing structure; the horizontal splicing structure includes the left groove 7 arranged on the left surface of the inner and outer formwork 2, 1 and the left groove 7 arranged on the right surface of the inner and outer formwork 2, 1 The right convex rib 8, the right convex rib 8 and the left groove 7 are compatible with each other;

The bottom of the outer formwork 1 is supported on a horizontal support plate 13, and the horizontal support plate 13 is downwardly connected with a pressing plate 14, and the pressing plate 14 is fixed on the lower wall 15 through a support assembly; The supporting bolts 16 of the connecting bolt holes on the body of wall 15, the supporting bolts 16 on both sides of the pressing plate 14 and the lower floor of the wall 15 are respectively provided with lock nuts 17, and the locking nuts 17 lock the pressing plate 14 and the lower floor of the wall 15 on the Together.

One end of the connecting bolt 3 is provided with a locking nut 17 and the other end is provided with a butterfly lock 18 .

The middle part of the connecting bolt 3 is provided with a wall-penetrating protective sleeve 19 .

The cross-section of the left groove 7 is a three-stage step groove, including the outermost step groove part 20, the middle layer step groove part 21 and the innermost layer step groove part 22; the outermost step groove part is trumpet-shaped, inclined The flared notch facilitates the insertion of the rib, allowing the rib to be inserted without having to be perfectly aligned with the groove.

The cross-section of the right convex rib 8 is a three-level step edge adapted to the three-level step groove, including the outermost step edge portion 23, the middle layer step edge portion 24 and the innermost layer step edge portion 25; The outer step edge part 23 is compatible with the innermost step groove part 22, the middle layer step edge part 24 is compatible with the middle layer step groove part 21, and the innermost step edge part 25 is in the shape of the outermost step groove. Part 20 fits the trumpet shape.

The arrangement of the butterfly lock 18 and the locking nut 17 can firmly connect the outer formwork 1 and the inner formwork 2 together, and facilitate installation and disassembly.

Both the lock nut 17 and the butterfly lock 18 are conventional techniques, and their specific structures are no longer described in detail.

When in use, pass the supporting bolt 16 through the connecting bolt holes on the pressing plate 14 and the outer wall of the lower floor (the building formwork is used to pour the outer wall, and the connecting bolt holes will be left after the formwork is removed), and then the locking nut 17 is used to lock the pressing plate 14 On the outer wall of the lower building, the outer formwork 1 of the upper floor can be stably and reliably supported by the horizontal support plate 13 (the inner formwork 2 in the upper building formwork is directly supported on the top of the lower building that has been constructed). Very convenient and stable.

Since the aluminum foil layer 6 is provided, the flatness of the poured outer wall is greatly improved, the thickness of the plastering layer can be reduced, and the construction cost can be saved.

When splicing the utility model horizontally, the right rib 8 of the first template is inserted in the left groove 7 of the second template, and the utility model can be spliced horizontally conveniently, which is suitable for construction occasions where the outer wall is longer.

When the construction of the first floor of the building structure is completed, when it is necessary to pour the outer wall of the upper layer of the building, the supporting bolts 16 are passed through the connecting bolt holes on the pressing plate 14 and the outer wall of the lower floor (use the building formwork to pour the outer wall, and there will be left behind after the formwork is removed). connecting bolt hole), and then use the locking nut 17 to lock the pressing plate 14 on the outer wall of the lower building. 2 directly supported on the top of the constructed substructure), it is very convenient and stable to support, and it is not easy to leak when pouring concrete.

The above embodiments are only used to illustrate and not limit the technical solutions of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that the present utility model can still be modified or equivalently replaced. Any modification or partial replacement without departing from the spirit and scope of the present utility model shall fall within the scope of the claims of the present utility model.

Claims (3)

1. the construction formwork of bottom fixation, comprise wooden exterior sheathing and inner formword, connecting bolt is provided with between inner and outer template, it is characterized in that: exterior sheathing is identical with inner formword structure, exterior sheathing and inner formword are respectively equipped with the upper and lower spaced horizontal reinforcing plates of twice, between horizontal reinforcing plates, are connected with the vertical stiffener in more than three roads;

The inner surface of described exterior sheathing and the inner surface of inner formword are respectively equipped with aluminium foil layer;

Described exterior sheathing and inner formword are equipped with horizontal splicing construction; Horizontal splicing construction comprises the left groove being arranged on inside and outside template left surface and the right fin being arranged on the right surface of inside and outside template, right fin and left groove mutually adaptive;

The bottom support of described exterior sheathing is on horizontal supporting plate, and horizontal supporting plate is connected with pressing plate downwards, and pressing plate is fixed on lower floor's body of wall by supporting component; Described supporting component comprises the carrying bolt through the link bolt hole on pressing plate and lower floor's body of wall, and the carrying bolt of pressing plate and lower floor's body of wall both sides is respectively equipped with locking nut, and pressing plate and lower floor's body of wall are locked together by locking nut.

2. the construction formwork of bottom according to claim 1 fixation, is characterized in that: an end of described connecting bolt is provided with locking nut and its other end is provided with butterfly snap close; The middle part of described connecting bolt is provided with protective sleeve through walls.

3. the construction formwork of bottom according to claim 1 and 2 fixation, is characterized in that: the cross section of described left groove is three grades of step grooves, comprises outermost layer step groove part, step groove portion, intermediate layer and innermost layer step groove part; Outermost step groove part flare;

The cross section of described right fin, in the three grade step ribs suitable with described three grades of step grooves, comprises outermost layer step rib part, intermediate layer step rib part and innermost layer step rib part; Outermost layer step rib part and innermost layer step groove body fit, intermediate layer step rib part and intermediate layer step groove body fit, tubaeform in outermost layer step groove body fit of innermost layer step rib part.