CN202787948U - Inverse outrigger structure plastic building template - Google Patents

Abstract

The utility model provides a plastic building formwork with an inverted beam structure, which includes a single inverted beam formwork, a double inverted beam formwork, a continuous triple inverted beam formwork, and a connected six-layer inverted beam formwork. The clamped parts including the feet and matching buckle connectors are provided with arc-shaped arch ribs inside. When each formwork is used, the side plates that are spliced with the adjacent plastic building formwork are provided with concave circles. arc segment. The plastic building formwork with inverted beam structure of the utility model has strong pressure resistance, and the splicing between the formworks is tight and firm without leakage. It is used in combination with the matching buckle connectors. The installation and disassembly of the formwork saves time and effort, and saves man-hours and costs. .

Description

A plastic building formwork with reverse cantilever beam structure

technical field

The utility model relates to a building construction tool, in particular to a building formwork.

Background technique

In modern engineering buildings, when pouring concrete on site to construct beams, columns, facade walls, floors and other units, a large number of building formwork must be used. Traditional building formwork generally uses wooden formwork or steel formwork. The wooden formwork is easy to rot, and the number of repeated use is small, and it is easy to bond with the concrete during use, and it is difficult to demould, which brings inconvenience to the construction, and the large-scale use of wood will cause waste of forest resources; the steel formwork is heavy and expensive , construction is inconvenient, and easy to rust. Nails are generally used for the connection between wooden formwork, and bolts and nuts are generally used for the connection between steel formwork, which is troublesome to build and disassemble. In recent years, there has been a practical application of replacing traditional steel and wooden formwork with plastic formwork. The internal ribs of these plastic building formworks are generally designed in the form of small squares in the shape of gussets, and the compressive strength is insufficient; in the design of the supporting legs, there is a plastic formwork with single ribs, small squares, and single ribs. The ribs cannot be made very thick due to the limitation of the forming process level, so the pressure bearing is obviously not enough, and another small side impact will break; the formwork designed with small squares is difficult to assemble and connect, and most of them are drilled and then bolted or connected. C-type clips and wedges are connected, and the splicing of bolted connections is labor-intensive and time-consuming. C-type clips and wedges often loosen and fall off due to vibration during concrete pouring, resulting in grout leakage. the

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, especially the disadvantages of insufficient compressive capacity of the plastic formwork, inconvenient connection and assembly of the formwork, and gaps in the formwork connection parts, and provide a formwork with strong compressive capacity, tight formwork connection and no leakage of slurry. The plastic building formwork of the reverse cantilever beam structure is used, and it is connected with the matching buckle connectors. The formworks are connected to each other and assembled and disassembled quickly and conveniently.

The technical solution for realizing the purpose of the utility model is: the plastic construction formwork of the reverse cantilever beam structure of the present utility model, and its structural characteristics are: the plastic building formwork of the reverse cantilever beam structure is a single reverse cantilever beam formwork; the above-mentioned single reverse cantilever beam formwork is An extruded integral part in the shape of a plate frame as a whole, including a front horizontal plate, a middle horizontal plate, a left vertical plate, a right vertical plate, a left supporting foot, a right supporting foot, a longitudinal rib, an arched rib, the first Sloping plate and second sloping plate; there are 3 longitudinal ribs, which are the first longitudinal rib, the second longitudinal rib and the third longitudinal rib in order from left to right;

The left longitudinal plate, the right longitudinal plate and each longitudinal floor are arranged vertically along the front-to-back direction, and the left longitudinal plate, each longitudinal floor and the right longitudinal plate are arranged in sequence from left to right; The middle and rear part of the side longitudinal plate is provided with a right-curved arc plate segment; the middle and rear part of the right longitudinal plate is provided with a left-curved arc plate segment; Set vertically, and the front side transverse plate is located in front of the middle transverse plate;

The left end of the front transverse plate is connected to the front end of the left longitudinal plate, the right end of the front transverse plate is connected to the front end of the right longitudinal plate; the left end of the middle transverse plate is connected to the right-curved arc plate section of the left longitudinal plate Above, the right end of the middle horizontal plate is connected to the left-curved arc plate section of the right longitudinal plate, so that the main frame of the formwork is composed of the front horizontal plate, the middle horizontal plate, the left longitudinal plate and the right longitudinal plate;

The first longitudinal rib, the second longitudinal rib and the third longitudinal rib are all connected between the front side transverse plate and the middle transverse plate, and are connected to the front side transverse plate by their respective front ends, and are all connected by their respective rear ends It is connected with the middle horizontal plate, and the first longitudinal rib is located at the right side of the left end of the formwork main frame, the second longitudinal rib is located at the left-right middle of the formwork main frame, and the third longitudinal rib is located at the right end of the formwork main frame. left part;

The vaults of the arched ribs face the rear, and the vaults and the rear ends of the second longitudinal ribs are interlaced and connected in an integrated manner, and the rear side of the vaults is connected with the front middle part of the middle horizontal plate; the arched The left front part of the ribs and the middle part of the first longitudinal ribs are interlaced with each other in an integrated manner; the left front end of the arched ribs is connected at the junction of the left longitudinal plate and the front transverse plate; the right front of the arched ribs The middle part of the upper part and the third longitudinal rib are interlaced and connected in an integrated manner; the right front end of the arched rib is connected to the junction of the right longitudinal plate and the front transverse plate;

Both the left support leg and the right support leg are frame-shaped parts as a whole, and the left support leg and the right support leg are symmetrically arranged with each other; the left support leg is connected to the rear end of the left longitudinal plate from the rear as the left rear Frame-shaped part; the right supporting foot is connected to the rear end of the right longitudinal plate from the rear as the right rear frame-shaped part;

The first slant plate is arranged vertically along the direction from the front right to the rear left, and the right front end of the first slant plate is connected to the junction of the first longitudinal rib and the middle horizontal plate, and the left rear end of the first slant plate is connected to the left supporting foot. The left and right middle parts of the front side are connected, so that the left middle frame-shaped part is jointly formed by the front left part of the left supporting foot, the rear part of the left longitudinal board, the left end part of the middle horizontal board and the first inclined board;

The left side of the left support foot and the left side of the left longitudinal plate are located on the same vertical plane set along the front and rear directions, the rear side of the left support foot is vertically set along the left and right directions, and the right side of the left support foot is along the The front and rear sides are set vertically, and are parallel to the left side of the left supporting foot. The right side of the left supporting foot, the front side of the right front part of the left supporting foot, and the right side of the left rear end of the first swash plate together constitute the first clamped part;

The second slant plate is arranged vertically along the direction from the left front to the right rear, and the left front end of the second slant plate is connected to the junction of the third longitudinal rib and the middle transverse plate, and the right rear end of the second slant plate is connected to the right supporting foot. The left and right middle parts of the front side are connected, so that the front right part of the right supporting foot, the rear part of the right longitudinal board, the right end part of the middle horizontal board and the second slant board jointly constitute the right middle frame-shaped part;

The right side of the right supporting foot and the right end surface of the right longitudinal plate are located on the same vertical plane arranged along the front and rear directions, the rear side of the right supporting foot is arranged vertically along the left and right directions, and the left side of the right supporting foot is arranged along the front and rear Set vertically, and parallel to the right side of the right supporting foot, the front side of the left front part of the right supporting foot is arranged vertically along the left and right, and parallel to the rear side of the right supporting foot, so that the right supporting foot The left side, the front side of the left front part of the right supporting foot and the left side of the right rear end of the second swash plate jointly constitute the second clamped part.

A further solution is: the plastic building formwork of the above-mentioned reverse cantilever beam structure is obtained by using a single reverse cantilever beam formwork as a basic unit in the left and right directions in any way of repeating 1 to 20 times; wherein, the single reverse cantilever beam If the formwork is repeated once in the left and right directions as a basic unit, a double reverse cantilever formwork can be obtained; The cantilever formwork as the basic unit is repeated five times in the left and right directions to obtain a continuous six-fold reverse cantilever formwork.

The utility model has positive effects:

(1) Replacing the traditional steel formwork and wooden formwork with the anti-overhang beam structural plastic building formwork of the present invention is not only conducive to saving resources, but also conducive to environmental protection.

(2) The plastic building formwork of this utility model has the same waterproof and mildew-proof performance as other plastic products, and preferably adopts materials with corrosion resistance, non-deformation resistance and flame retardancy, so as to meet the requirements of building construction.

(3) The plastic building formwork of the inverted beam structure of the utility model adopts the design of arc-shaped arch ribs, which greatly increases the resistance of the main frame of the formwork towards the concrete pouring surface, that is, the working surface, compared with the common grid formwork. At the same time, due to the large elastic limit of the arched ribs, it can adapt to the large vibration when pouring concrete.

(4) The plastic building formwork of the inverted beam structure of the utility model is provided with 2 supporting feet, and the supporting feet adopt a frame structure, and its functions are: first, reducing the weight of the formwork and saving plastic; second, not only increasing The overall stability of the plastic building formwork is also used as a part of the support system when pouring concrete; third, the clamped part is formed together with the corresponding inclined plate, so that it can be connected with the adjacent plastic building formwork through the corresponding buckle connection A detachable fixed buckle is formed between them.

(5) Both sides of the plastic building formwork of the inverted beam structure of the utility model are provided with concave circular arc plate sections, so that when the formwork is deformed by force, the deformation of the circular arc plate sections can reduce the main force of the formwork. The effect of frame deformation is beneficial to continue to maintain a flat shape. Since the butt joint surfaces of the spliced two formworks have concave circular arc plate sections, the buckle connector can continue to maintain the state that the two adjacent plastic building formworks are reliably buckled and connected, so that the adjacent plastic building formwork The splicing is tight and does not leak slurry.

Description of drawings

Fig. 1 is a kind of structural representation of the single reverse cantilever formwork of the utility model reverse cantilever beam structure plastic building template;

Fig. 2 is a kind of structural representation of the double reversed beam formwork of the utility model reversed beam structure plastic building formwork;

Fig. 3 is a kind of structural representation of the continuous triple anti-overhanging beam formwork of the utility model anti-overhanging beam structure plastic building formwork;

Fig. 4 is a kind of structural representation of the continuous six-fold anti-overhanging beam formwork of the utility model anti-overhanging beam structure plastic building formwork;

Fig. 5 is a schematic diagram of the detachable and fixed connection of two single inverted beam formworks of the plastic building formwork of the inverted beam structure of the present invention through the matching buckle connectors.

The titles of the reference signs in the above-mentioned accompanying drawings are as follows:

Snap connector 1,

Reverse cantilever beam structure template 3, single reverse cantilever beam formwork 301, first clamped part 301a, second clamped part 301b, left middle frame-shaped part 301c, right middle frame-shaped part 301d, double reverse cantilever beam template 302 , longitudinally thickened ribs 302-1, hollow cylinder parts 302-2, reinforced support feet 302-3, continuous triple inverted beam formwork 303, longitudinally thickened ribs 303-1, hollow cylinder parts 303-2, Reinforced supporting feet 303-3, continuous six-fold inverted beam formwork 306, longitudinally thickened ribs 306-1, hollow cylinder parts 306-2, reinforced supporting feet 306-3,

Front transverse plate 31-1, middle transverse plate 31-2, left longitudinal plate 32-1, arc plate section 32-1-1, right longitudinal plate 32-2, arc plate section 32-2-1 , left supporting foot 33-1, right supporting foot 33-2, longitudinal rib 34, first longitudinal rib 34-1, second longitudinal rib 34-2, third longitudinal rib 34-3, arched rib Plate 35, vault 35-1, first inclined plate 36-1, second inclined plate 36-2.

Detailed ways

When the utility model describes the orientation in the specific embodiment, the direction toward the direction shown in Fig. 1 is taken as the top, and the direction behind the back of Fig. 1 is taken as the bottom, and the left and right sides in Fig. 1 are still the left and right sides in the description. The up-down direction of is the front-back direction in the description. Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail. Figure 1 to Figure 4 shows the top view of the plastic building formwork with inverted beam structure in actual use, that is, the shape of the upper end surface of the formwork is given. The shown end face shape is extended along the up and down direction to obtain the plastic building formwork of the utility model with reverse cantilever beam structure.

(Example 1, single overhang beam formwork)

As shown in FIG. 1 , the plastic building formwork of the reverse cantilever beam structure in this embodiment is a single reverse cantilever beam formwork 301 . The single inverted beam formwork 301 is one of the series formworks of the inverted beam structural plastic building formwork 3 . The single reverse cantilever formwork 301 is an extruded integral part, which is a frame-shaped plastic member obtained by melting polyvinyl chloride plastic pellets and extruding through corresponding molds. The single reverse cantilever beam template 301 (that is, the first single arch unit) includes a front side horizontal plate 31-1, a middle horizontal plate 31-2, a left vertical plate 32-1, and a right vertical plate 32- 2. The longitudinal ribs 34, the arched ribs 35, the first slanting plate 36-1 and the second slanting plate 36-2, also include a left supporting foot 33-1 and a right supporting foot 33-2. The left supporting foot 33-1 and the right supporting foot 33-2 are all frame-shaped parts basically in the shape of a "mouth", and the left supporting foot 33-1 and the right supporting foot 33-2 are all arranged vertically by corresponding frame plates in turn. connected to form.

The left longitudinal plate 32-1, the right longitudinal plate 32-2 and each longitudinal rib 34 of the single inverted beam template 301 are vertically arranged along the front and rear directions, and the left longitudinal plate 32-1, each longitudinal rib 34 and the right vertical plate 32-2 are arranged in sequence from left to right, and the middle rear part of the left vertical plate 32-1, preferably accounting for about 2/3 of the total front-to-back length, is provided with a right-curved The circular arc plate segment 32-1-1, the middle rear part of the right vertical plate 32-2, preferably accounting for about 2/3 of the total front-to-back length, is provided with a left-curved circular arc plate segment 32-2-1. The front horizontal plate 31-1 and the middle horizontal plate 31-2 are arranged vertically along the left and right directions, and the front side horizontal plate 31-1 and the middle horizontal plate 31-2 are arranged in sequence from front to back. The length of the front lateral plate 31 - 1 in the left and right directions is about four times the length of the longitudinal ribs 34 in the front and rear directions. The front side of the front side horizontal plate 31-1 is the working face when pouring concrete.

The left end of the front side horizontal plate 31-1 of the single inverted beam formwork 301 is connected to the front end of the left longitudinal plate 32-1, and the right end of the front side horizontal plate 31-1 is connected to the front end of the right vertical plate 32-2; The left end of the horizontal plate 31-2 is connected with the rightward curved arc plate segment 32-1-1 of the left longitudinal plate 32-1; The curved arc plate segments 32-2-1 are connected; thus, the front side transverse plate 31-1, the middle transverse plate 31-2, the left longitudinal plate 32-1 and the right longitudinal plate 32-2 together form a single anti-hanging The formwork main frame of the beam formwork 301. The left longitudinal plate 32-1 is provided with a right-curved arc plate segment 32-1-1 and the right longitudinal plate 32-2 is provided with a left-curved arc plate segment 32-2-1, on the one hand, the arc plate The section is used to increase the strength of the main frame of the formwork, and on the other hand, the deformation of the circular arc plate section of the left longitudinal plate 32-1 and the right longitudinal plate 32-2 can reduce the impact on the formwork when the single reverse cantilever beam formwork 301 is deformed. The influence of the deformation of the main frame is also beneficial to the continued flat shape of the single reverse cantilever beam formwork 301, so that the buckle connector 1 can continue to be in the state of reliably fastening and connecting two adjacent plastic building formworks.

There are 3 to 5 longitudinal ribs 34 of the single reverse cantilever formwork 301 (3 in this embodiment). The three longitudinal ribs 34 are located between the left longitudinal plate 32-1 and the right longitudinal plate 32-2, so they are called the first longitudinal rib 34-1 and the second longitudinal rib 34-1 in sequence from left to right. Ribs 34-2 and third longitudinal ribs 34-3. The three longitudinal ribs 34 are all connected between the front side transverse plate 31-1 and the middle transverse plate 31-2, and are connected by their respective front ends and front sides The horizontal plates 31-1 are connected to each other, and their respective rear ends are connected to the middle horizontal plate 31-2. Among them, the first longitudinal rib 34-1 is located at the right side of the left end of the formwork main frame, preferably the front end of the first longitudinal rib 34-1 and the front side horizontal plate 31-1 account for about 1/8 of the total length in the left and right direction. The parts are connected, so that the first longitudinal rib 34-1 and the formwork main frame constitute the left front frame-shaped part of the single reverse cantilever formwork 301. The second longitudinal rib 34-2 is located in the left-right middle of the formwork main frame, and preferably the front end of the second longitudinal rib 34-2 is connected to the half of the total left-right length of the front side transverse plate 31-1. The third longitudinal rib 24-3 is located at the left side of the right end of the formwork main frame, preferably the front end of the third longitudinal rib 34-3 is connected to the front side horizontal plate 31-1 which accounts for about 7/8 of the total length in the left and right direction , so that the third longitudinal rib 34-3 and the formwork main frame form the right front frame-shaped part of the single anti-spill formwork 301.

The vault 35-1 of the arched rib 35 of the single inverted beam formwork 301 faces backward, and the vault 35-1 and the rear end of the second longitudinal rib 34-2 are interlaced and connected to each other in an integrated manner, and the arch The rear side of the top 35-1 is connected with the front middle part of the middle horizontal plate 31-2. The arched rib 35 is interlaced with the left front part of its left part and the middle part of the first longitudinal rib 34-1 in an integrated manner, and the arc length from the interlaced part to the vault 35-1 is approximately 2/3 of the entire arc length of the left portion of the arched rib 35; the arched rib 35 is connected to the junction of the front side transverse plate 31-1 and the left vertical plate 32-1 by the left front end of its left portion. The arched rib 35 is interlaced with the right front part of its right part and the middle part of the third longitudinal rib 34-3 in an integrated manner, and the arc length from the interlaced part to the vault 35-1 is approximately 2/3 of the entire arc length of the right portion of the arched rib 35; the arched rib 35 is connected to the junction of the front side transverse plate 31-1 and the right longitudinal plate 32-2 by the right front end of its right portion.

The left supporting foot 33-1 and the right supporting foot 33-2 of the single reverse cantilever beam formwork 301 are symmetrically arranged left and right. The left supporting foot 33-1 is connected to the rear end of the left vertical plate 32-1 from the rear and serves as a frame-shaped part of the left rear part of the single inverted cantilever formwork 301 (referred to as the left rear frame-shaped part for short); The right supporting foot 33-2 is connected to the rear end of the right longitudinal plate 32-2 from the rear to form a frame-shaped part of the right rear part of the single reverse cantilever formwork 301 (referred to as the right rear frame-shaped part for short) . The functions of the left support foot 33-1 and the right support foot 33-2 are, one is to carry out detachable fixed connection with the adjacent plastic building formwork through the buckle connector 1, and the other is to increase the integral structure of the single inverted beam formwork 301. Stability, the third is as part of the support system when pouring concrete.

The first slant plate 36-1 of the single reverse cantilever beam formwork 301 is set vertically along the direction from the front right to the rear left, and the right front end of the first slant plate 36-1 is connected to the first longitudinal rib 34-1 and the middle horizontal plate 31-2, the left rear end of the first slant plate 36-1 is connected to the left-right middle part of the front side of the left supporting foot 33-1, thereby the front left part, the left side of the left supporting foot 33-1 The rear part of the side vertical plate 32-1, the left end of the middle horizontal plate 31-2 and the first slant plate 36-1 jointly constitute the frame-shaped part 301c (referred to as is the left middle frame-shaped part 301c), the left middle frame-shaped part 301c not only increases the strength of the left side part of the single reverse cantilever beam formwork 301, but also because the left middle frame-shaped part 301c is located in a single Between the left front frame part of the reverse cantilever beam formwork 301 and the left supporting foot 33-1, the three together form a structure with a large modulus of elasticity in the forward direction, thus becoming substantially rigid in the forward direction. left support system.

The left side of the left supporting foot 33-1 of the single reverse cantilever beam template 301 and the left end surface of the left vertical plate 32-1 are located on the same vertical plane arranged along the front and rear directions; the rear side of the left supporting foot 33-1 Vertically arranged along the left and right directions; the right side of the left supporting foot 33-1 is vertically arranged along the front and rear directions, and is parallel to the left side of the left supporting foot 33-1; the front of the right front part of the left supporting foot 33-1 The side is vertically arranged along the left and right sides, and is parallel to the rear side of the left supporting foot 33-1; The right side of the left rear end of the sloping plate 36 - 1 jointly constitutes the first clamped part 301 a on the left side of the single anti-spill formwork 301 . The first clamped portion 301a is a portion that cooperates with the clamping portion 11-6 of the right clamping plate 11b of the snap connector 1 obtained in Example 1 during use.

The second slant plate 36-2 of the single reverse cantilever beam formwork 301 is set vertically along the direction from the left front to the right rear, and the left front end of the second slant plate 36-2 is connected to the right longitudinal rib 34-3 and the middle horizontal plate 31-2, the right rear end of the second slant plate 36-2 is connected to the left-right middle part of the front side of the right supporting foot 33-2, thereby the front side right part, the right side of the right supporting foot 33-2 The rear portion of the side vertical plate 32-2, the right end portion of the middle horizontal plate 31-2 and the second slant plate 36-2 jointly constitute the frame-shaped portion 301d (referred to as is the right middle frame-shaped part 301d), the right middle frame-shaped part 301d not only increases the strength of the right part of the single reverse cantilever beam template 301, but also because the right middle frame-shaped part 301d is located in a single Between the right front frame part of the reverse cantilever beam formwork 301 and the right supporting foot 33-2, the three together form a large elastic modulus in the forward direction, thus becoming substantially rigid in the forward direction. right side support system.

The right side of the right support foot 33-2 of the single reverse cantilever beam formwork 301 and the right end surface of the right vertical plate 32-2 are located on the same vertical plane arranged along the front and rear directions, and the rear side of the right support foot 33-2 Vertically arranged along the left and right, the left side of the right supporting foot 33-2 is vertically arranged along the front and rear direction, and parallel to the right side of the right supporting foot 33-2, the front of the left front part of the right supporting foot 33-2 The side is vertically arranged along the left and right sides, and is parallel to the rear side of the right supporting foot 33-2, so that the left side of the right supporting foot 33-2, the front side of the left front part of the right supporting foot 33-2 and the second The left side of the right rear end of the sloping plate 36 - 2 jointly constitutes the second clamped portion 301 b on the right side of the single anti-spill formwork 301 . The second clamped portion 301b is a portion that cooperates with the clamping portion 11-6 of the left clamping plate 11a of the snap connector 1 obtained in Example 1 during use.

The single inverted beam formwork 301 of this embodiment is provided with arched ribs 35 with the vault facing the rear, and combined with the longitudinal ribs 34 to match the main frame of the formwork, the technical effects are as follows:

One is that the presence of the longitudinal ribs 34 and the arched ribs 35 increases the forward compressive strength of the formwork main frame of the single reverse cantilever formwork 301 .

Second, when assembling plastic building formwork during construction, it is necessary to use a special formwork support frame and a formwork support system composed of corresponding auxiliary components to support and fix the plastic building formwork. In this embodiment, the formwork supporting frame directly supports the rear sides of the left supporting foot 33-1 and the right supporting foot 33-2. The existence of the formwork support frame makes all the pressure acting on the front side of the front side horizontal plate 31 - 1 be transformed into the elastic deformation of the single inverted cantilever beam formwork 301 when pouring concrete.

Setting the arched ribs 35 with the vault towards the rear has a certain contribution to increasing the elastic modulus of the formwork main frame in the front and rear directions. The elastic modulus of each of the arched ribs and the arched ribs 35 is not much different in the front and rear directions. Therefore, compared with the single positive cantilever formwork 201 of the same specification, the left and right middle parts of the single reverse cantilever formwork 301 are in the forward direction. The upward modulus of elasticity is small, and since the degree of the central angle of the arched ribs 35 is much larger than that of the single positive cantilever formwork 201, the elastic limit of the arched ribs 35 is increased.

Under the support of the template support frame, due to the large elastic modulus of the left support system and the right support system, the force applied to the front side of the front side horizontal plate 31-1 when pouring concrete makes the main force on the front side The transverse plate 31-1, the arched rib plate 35 and the middle transverse plate 31-2 produce elastic deformation in the front and rear directions respectively in the left and right directions, including the first inclined plate 36-1 and the second inclined plate 36- 2 and other corresponding parts also have corresponding small elastic deformation. Because the elastic limit of the arched ribs 35 is relatively large, it can be adapted to the occasions where a larger vibration amplitude is required when pouring concrete, so that the poured concrete is relatively uniform and firm.

(Example 2, double overhang beam formwork)

As shown in FIG. 2 , the plastic construction formwork of the reverse cantilever beam structure in this embodiment is a double reverse cantilever beam formwork 302 . The double reverse cantilever beam template 302 is one of the series templates of the reverse cantilever beam structural plastic building formwork 3 . The double reverse cantilever formwork 302 is an extruded integral part, which is a frame-shaped plastic member obtained by melting polyvinyl chloride plastic pellets and extruding through corresponding molds. From the shape point of view, the double reverse cantilever beam template 302 is composed of one basic unit repeated once in the left and right direction; this basic unit is called the first single arch unit, and its shape is the same as that of the single The reverse cantilever beam templates 301 have the same shape; that is, the double inverted cantilever beam template 302 is formed by connecting the right side of the first single arch unit on the left side and the left side of the first single arch unit on the right side. Wherein, the right longitudinal plate 32-2 of the first single arch unit on the left is combined with the left longitudinal plate 32-1 of the first single arch unit on the right to form a longitudinally thickened rib 302-1; The leftward curved circular arc plate segment 32-2-1 of the right side longitudinal plate 32-2 of the first single arch unit is then curved to the right with the left side longitudinal plate 32-1 of the first single arch unit on the right side. The arc plate segments 32-1-1 are combined to form a hollow cylinder part 302-2; the right supporting foot 33-2 of the first single arch unit on the left and the left supporting foot of the first single arch unit on the right 33-1 are combined to form a reinforced supporting foot 302-3, so that each first single arch unit of the double reverse cantilever beam template 302 has the same or even slightly better mechanical properties than the single reverse cantilever beam template 301 of Embodiment 1.

(Embodiment 3, continuous triple inverted beam formwork)

As shown in FIG. 3 , the plastic building formwork of the reverse cantilever beam structure in this embodiment is a continuous triple reverse cantilever beam formwork 303 . The continuous triple inverted beam formwork 303 is one of the series formworks of the inverted beam structural plastic building formwork 3 . The rest of the continuous triple reverse cantilever formwork 303 is the same as that of Embodiment 2, the difference is that: from the shape of the continuous triple reverse cantilever beam formwork 303, the first single arch unit repeats twice in the left and right direction Composition; thus, the continuous triple anti-overhang beam formwork 303 is provided with two corresponding longitudinal thickened ribs 303-1, two hollow cylinder parts 303-2 and two reinforced supporting feet 303-3.

(Example 4, continuous six-fold inverted beam formwork)

As shown in FIG. 4 , the plastic building formwork of the reverse cantilever beam structure in this embodiment is a continuous six-fold reverse cantilever beam formwork 306 . The continuous six-fold inverted beam formwork 306 is one of the series formworks of the inverted beam structural plastic building formwork 3 . The remaining parts of the continuous six-fold reverse cantilever beam formwork 306 are the same as those in Embodiment 2, the difference is that the continuous six-fold reverse cantilever beam formwork 306 is repeated and continued by one side of the first single arch unit in the left and right direction in terms of shape. 5 times of construction; thus, the continuous six-fold inverted beam template 306 is provided with 5 longitudinally thickened ribs 306-1, 5 hollow cylinder parts 306-2 and 5 reinforced supporting feet 306-3.

As shown in Fig. 5, when the two single inverted beam templates 301 of the plastic building formwork of the inverted beam structure of the present invention are detachably fixedly connected, the single inverted beam template 301 on the right side is engaged by the buckle connector 1 The first clamped part 301a of the left side is fixedly connected to the second clamped part 301b of the single anti-spill formwork 301 on the left side. The preferred arc plate sections of the two formworks are butted on the splicing surface to form a circular through hole. Under the strong locking of the buckle connector 1, the splicing between the two formworks is tight, and the connection seam between the two formworks is extremely small. In construction, it can effectively adapt to the vibration of concrete pouring vibrating rods, and the joints will not be loose and grout will not leak.

The above embodiments and application examples are descriptions of specific implementations of the present utility model, rather than limitations of the present utility model. Those skilled in the relevant technical fields can also make various Therefore, all equivalent technical solutions should be included in the patent protection scope of the utility model.

Claims (2)

1. anti-outrigger structural plastic construction formwork, it is characterized in that: this anti-outrigger structural plastic construction formwork is single anti-outrigger template (301); Described single anti-outrigger template (301) is the whole extrusion molding integral piece that is sheet frame shape, comprises front side transverse slat (31-1), middle transverse slat (31-2), left side stringer board (32-1), right side stringer board (32-2), left support foot (33-1), right support foot (33-2), vertical floor (34), arcuate ribs (35), the first swash plate (36-1) and the second swash plate (36-2); Vertically floor (34) has 3, is followed successively by first vertical floor (34-1), second vertical floor (34-2) and the 3rd vertical floor (34-3) according to from left to right order;

Left side stringer board (32-1), right side stringer board (32-2) and each vertical floor (34) be all along front and back to the vertical setting, and the mutual order according to from left to right of left side stringer board (32-1), each vertical floor (34) and right side stringer board (32-2) sets gradually; The postmedian of left side stringer board (32-1) is provided with crooked to the right arc plate section (32-1-1); The postmedian of right side stringer board (32-2) is provided with crooked arc plate section (32-2-1) left; Front side transverse slat (31-1) and middle transverse slat (31-2) all along about to the vertical setting, and front side transverse slat (31-1) be positioned in the middle of transverse slat (31-2) the place ahead;

The left end of front side transverse slat (31-1) links to each other with the front end of left side stringer board (32-1), and the right-hand member of front side transverse slat (31-1) links to each other with the front end of right side stringer board (32-2); The left end of middle transverse slat (31-2) is connected on the crooked arc plate section (32-1-1) to the right of left side stringer board (32-1), the right-hand member of middle transverse slat (31-2) is connected on the crooked arc plate section (32-2-1) left of right side stringer board (32-2), thereby jointly consists of the template main frame by front side transverse slat (31-1), middle transverse slat (31-2), left side stringer board (32-1) and right side stringer board (32-2);

First vertical floor (34-1), second vertical floor (34-2) and the 3rd vertical floor (34-3) all are connected between front side transverse slat (31-1) and the middle transverse slat (31-2), and link to each other with front side transverse slat (31-1) by front end separately, link to each other with middle transverse slat (31-2) by separately rear end, and the left end that first vertical floor (34-1) is positioned at the template main frame position that takes over, second vertical floor (34-2) be positioned at the template main frame about to the middle part, the right-hand member that the 3rd vertical floor (34-3) is positioned at the template main frame position of taking back;

The vault (35-1) of arcuate ribs (35) is towards the rear, this vault (35-1) is connected so that the mode that is integrally formed is interlaced with the position, rear end of second vertical floor (34-2), and the rear side of vault (35-1) links to each other with the middle part, front side of middle transverse slat (31-2); Left front of arcuate ribs (35) is connected so that the mode that is integrally formed is interlaced with the middle part of first vertical floor (34-1); The left front end of arcuate ribs (35) is connected to the junction of left side stringer board (32-1) and front side transverse slat (31-1); The right front portion of arcuate ribs (35) is connected so that the mode that is integrally formed is interlaced with the middle part of the 3rd vertical floor (34-3); The right front ends of arcuate ribs (35) is connected to the junction of right side stringer board (32-2) and front side transverse slat (31-1);

Left support foot (33-1) and right support foot (33-2) are the position that integral body is shaped as frame, and left support foot (33-1) is symmetrical set each other with right support foot (33-2); Left support foot (33-1) is connected to from the rear on stringer board (32-1) rear end, left side and as shaped as frame position, rear portion, left side; Right support foot (33-2) is connected to from the rear on the rear end of right side stringer board (32-2) and as shaped as frame position, rear portion, right side;

The first swash plate (36-1) is along right front to left back direction vertical setting, and the right front ends of the first swash plate (36-1) is connected to the junction of first vertical floor (34-1) and middle transverse slat (31-2), about the front side of the left back end of the first swash plate (36-1) and left support foot (33-1) to the middle part be connected, thereby consist of middle boxes shaped part position (301c), left side by the left end position of the front side left part of left support foot (33-1), the rear portion of left side stringer board (32-1), middle transverse slat (31-2) and the first swash plate (36-1) are common;

The left surface of the left surface of left support foot (33-1) and left side stringer board (32-1) be positioned at same along front and back on the vertical guide that arranges, the trailing flank of left support foot (33-1) along about to the vertical setting, the right flank of left support foot (33-1) is along front and back to the vertical setting, and be parallel to each other with the left surface of left support foot (33-1), the leading flank of the right front portion of left support foot (33-1) along about to the vertical setting, and be parallel to each other with the trailing flank of left support foot (33-1), thereby by the right flank of left support foot (33-1), the right flank of the left back end of the leading flank of the right front portion of left support foot (33-1) and the first swash plate (36-1) is common to consist of first by folder position (301a);

The second swash plate (36-2) is along left front to right back direction vertical setting, and the left front end of the second swash plate (36-2) is connected to the junction of the 3rd vertical floor (34-3) and middle transverse slat (31-2), about the front side of the right rear end of the second swash plate (36-2) and right support foot (33-2) to the middle part be connected, thereby jointly consist of middle boxes shaped part position, right side (301d) by right-hand member position and second swash plate (36-2) of the front side right part of right support foot (33-2), the rear portion of right side stringer board (32-2), middle transverse slat (31-2);

The right side of the right flank of right support foot (33-2) and right side stringer board (32-2) be positioned at same along front and back on the vertical guide that arranges, the trailing flank of right support foot (33-2) along about to the vertical setting, the left surface of right support foot (33-2) is along front and back to the vertical setting, and be parallel to each other with the right flank of right support foot (33-2), the leading flank of the left front section of right support foot (33-2) along about to the vertical setting, and be parallel to each other with the trailing flank of right support foot (33-2), thereby by the left surface of right support foot (33-2), the left surface of the right back end of the leading flank of the left front section of right support foot (33-2) and the second swash plate (36-2) is common to consist of second by folder position (301b).

2. anti-outrigger structural plastic construction formwork according to claim 1, it is characterized in that: described anti-outrigger structural plastic construction formwork is for to be obtained in any mode that repeats to continue in 1 to 20 time on left and right directions as elementary cell by single anti-outrigger template (301); Wherein, repeat continuity as elementary cell at left and right directions by single anti-outrigger template (301) and once then obtain dual anti-outrigger template (302), perhaps repeat continue secondary as elementary cell at left and right directions by single anti-outrigger template (301) and then obtain continuously triple anti-outrigger templates (303), perhaps repeat continue five time as elementary cell at left and right directions by single anti-outrigger template (301) and then obtain the anti-outrigger template of continuous sixfold (306).

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