CN207538451U - A kind of steel form - Google Patents

Abstract

The utility model discloses a steel formwork, which belongs to the field of moulds, and aims to provide a steel formwork that can quickly and conveniently carry out demoulding work. The outer mold and the inner mold are connected by pull bolts to form a mold cavity. The outer mold includes four side plates and surrounds a rectangular space, and the adjacent side plates are fixedly connected by diagonal tie rods; the inner mold includes Two bending parts with openings towards the center of the inner mold and two opposite straight edge parts, the bending parts and the straight edge parts together form a straight groove shape; the bending parts are fixedly connected to each other by two corner molds The connection between the corner mold and the straight side part is the demoulding adjustment part and is fixed by bolts, and the adjustment part is arranged obliquely. The utility model is suitable for the template field.

Description

a steel template

technical field

The utility model relates to a mold, in particular to a steel template.

Background technique

Steel formwork is a steel formwork used for concrete pouring. In addition to steel formwork, there are also wooden formwork, plywood formwork, etc. Steel formwork is widely used in construction projects due to its multiple uses and beautiful concrete pouring.

The Chinese patent with the notification number CN201495765U discloses a sewage well template, which includes a cylindrical outer mold and a cylindrical inner mold, and the cylindrical outer mold is formed by pairing two semi-cylindrical outer steel templates , the cylindrical inner mold is formed by pairing two semi-cylindrical inner steel formworks, the radius difference between the outer steel formwork and the inner steel formwork is equal to the thickness of the sewage shaft wall, each semicylindrical outer steel formwork and There are flanges on the upper, lower and two sides of the inner steel formwork, and bolt holes are distributed on the flanges, and the bolts pass through the bolts on the two side flanges of the two semi-cylindrical outer steel formworks. The holes are connected as a cylindrical outer mold, and the bolt holes on the two side flanges of the two semi-cylindrical inner steel formworks are connected by bolts to form a cylindrical inner mold.

Although this formwork can be easily installed and spliced, it can be recycled, but during the demoulding process, the concrete and the inner steel mold adhere to each other, making it difficult to demould the inner steel mold, and easily cause damage to the surface quality of the concrete during demoulding.

Utility model content

The purpose of the utility model is to provide a steel formwork, which has the advantage of quick and convenient demoulding.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions:

A steel formwork, comprising an outer mold and an inner mold, the outer mold and the inner mold are connected by pull bolts to form a mold cavity, the outer mold includes four side plates and surrounds a rectangular space, adjacent to the The side panels are fixedly connected by diagonal tie rods;

The inner mold includes two bent parts with openings towards the center of the inner mold and two opposite straight side parts, the bent parts and the straight side parts together form a straight groove shape;

The bending part is composed of two corner molds fixedly connected to each other. The connection between the corner mold and the straight side part is a demoulding adjustment part and is fixed by bolts, and the adjustment part is arranged obliquely.

By adopting the above-mentioned technical scheme, the contact area between the bent part and the straight side part is enhanced through the inclined adjustment part, so that the connection between the bent part and the straight side part is tighter, and when the concrete in the mold cavity is solidified, the adjustment The corner molds and straight sides on both sides of the part are evenly stressed, and the adjustment part set at an angle is not easy to be deformed by force, so that during the dismantling process of the inner mold, the dismantled inner mold parts are easier to remove, and the mold removal operation is more convenient.

Further, adjacent to the adjustment position forms a figure-eight shape with an opening facing the center of the inner mold.

By adopting the above-mentioned technical scheme, during the dismantling process of the inner mold, the straight side part can be disassembled first, and the adjustment part arranged in a figure-eight toward the center of the inner mold can make the corner mold no longer when the straight side part is separated from the adjacent corner mold. Under the extrusion force, it can effectively reduce the damage of the concrete due to the shear force.

Further, the inclination angle between the adjustment part and the length direction of the straight side part is 60 degrees.

By adopting the above technical scheme, the adjustment part set at 60 degrees can not only enhance the connection tightness between the corner mold and the straight side part, but at the same time, when the concrete in the mold cavity is solidified, the force bearing area of the adjustment part is relatively small, Thereby reducing the deformation of the adjustment part, making the demoulding of the straight edge part easier. When the angle is too small or too large, the difference between the inclination angle of the adjustment part and the 90 degree in the prior art is too small, which cannot bring good results. Beneficial effect.

Further, the side of the adjusting part facing the center of the inner mold is provided with two mutually abutting flange connecting plates, and the two flange connecting plates are respectively fixedly connected with the corner mold and the straight side part, and the two flange connecting plates A number of corresponding connecting holes are opened on the flange connecting plate, and flange bolts are pierced in the connecting holes, and the two flange connecting plates are connected by flange bolts.

By adopting the above technical solution, the two flange connection plates are abutted against each other and connected by flange bolts, and the corner mold and the straight side are connected by flanges, so that the assembly of the inner mold is more convenient.

Further, a pre-installation hole is opened on the flange connecting plate, and the pre-installation hole is a waist hole;

The pre-installation holes of the adjacent flange connection plates are connected by pre-connection bolts, and there is a buffer gap between the pre-installation holes and the pre-connection bolts.

By adopting the above-mentioned technical scheme, during the assembling process of the inner mold, it is often difficult for the two flange connecting plates of the connecting part to abut and align because the inner mold workpiece is too large. By setting the pre-installation holes and pre-connection bolts, the pre-installation holes First connect the two flange connecting plates, the buffer gap of the pre-installation hole can be adjusted when the two flange connecting plates are aligned, the pre-connecting bolts will be displaced in the buffer gap until the connecting holes of the two flange connecting plates are aligned One-to-one correspondence, and then the two flange connecting plates are fixedly connected by flange bolts.

Further, the top of the adjustment part is provided with a leveling mechanism, and the leveling mechanism includes a groove arranged on the top wall of the adjustment part, and the two ends of the groove in the length direction are respectively located on the top wall of the corner mold and the straight side part , the two ends of the bottom wall of the groove in the length direction are respectively provided with a vertically downward leveling hole;

A U-shaped frame is embedded in the groove, and the two insertion ends of the U-shaped frame are respectively inserted into the two leveling holes, and the thickness of an arm of the U-shaped frame away from the insertion end is the same as the depth of the groove.

By adopting the above technical scheme, when the corner mold and the flange connecting plate of the side plate are in contact with each other, in order to better realize the one-to-one correspondence between the connecting holes on the two flange connecting plates, the two ends of the rim-shaped frame are embedded into the adjustable Flat holes, and the top of the arm away from the end of the U-shaped frame is on the same plane as the opening of the groove, so that the connecting holes of the two flange connecting plates correspond one-to-one, which is more convenient for the connection and fixing of the adjustment parts.

Further, the diagonal stay rod passes from the outer side of the side plate to the outer side of the adjacent side plate, and an angle brace is provided between the end of the diagonal stay rod and the outer side of the side plate.

By adopting the above technical solution, the diagonal tie rod can realize the fixation between the adjacent side walls of the outer mold, and the setting of the gusset plate can make the line contact between the fastening bolt at the end of the diagonal stay rod and the side wall change into surface contact, thereby strengthening the diagonal. The fixing effect of the tie rod on the adjacent side panels.

Further, the inner mold is arranged in the middle of the outer mold.

By adopting the above technical scheme, the thickness of the mold cavity is made uniform, and the casting concrete in the curtain wall exerts a relatively uniform force on the inner mold and the outer mold, thereby improving the stability of the inner mold and the outer mold, and the interaction between the inner mold and the outer mold. The force is relatively small, so it is more convenient to remove the formwork.

In summary, the utility model has the following beneficial effects:

1. The adjustment part set at a slant is adopted, thereby enhancing the contact area between the bending part and the straight side part, the connection part is not easy to be deformed by force, and the demoulding operation is more convenient;

2. The leveling mechanism is adopted, which makes it more convenient to connect and fix the adjustment parts;

3. Diagonal tie rods and gusset plates are used to realize the fixing effect of the external formwork.

Description of drawings

Fig. 1 is a schematic structural diagram for embodying the whole in the present embodiment;

Fig. 2 is a schematic structural diagram for embodying adjustment parts in this embodiment;

Fig. 3 is a schematic diagram of the partial explosion structure used to embody the leveling mechanism and the flange connecting plate in this embodiment;

FIG. 4 is an enlarged schematic view of part A used to represent the leveling mechanism in FIG. 3 .

In the figure, 1, outer mold; 11, side plate; 2, inner mold; 21, bending part; 211, corner mold; 22, straight side part; 3, adjustment part; 31, flange connecting plate; Hole; 312, flange bolt; 313, pre-installation hole; 3131, buffer gap; 314, pre-connection bolt; 4, leveling mechanism; 41, groove; 411, leveling hole; 42, 匚-shaped frame; 5, 6. Diagonal tie rod; 61. Angular brace; 62. Fastening bolt; 7. Die cavity; 8. Back rib.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom" and "top "Face", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

A steel formwork, as shown in FIG. 1 , includes an outer mold 1 and an inner mold 2 , the inner mold 2 is arranged in the middle of the inner side of the outer mold 1 , and a mold cavity 7 is formed between the outer mold 1 and the inner mold 2 . The outer mold 1 and the inner mold 2 are connected by pull bolts 5, and the inner side of the inner mold 2 and the outer side of the outer mold 1 are respectively fixed with back ribs 8 for reinforcing the formwork.

As shown in FIG. 1 , the outer mold 1 includes four side plates 11 , adjacent side plates 11 are fixedly connected by diagonal stay rods 6 , and the four side plates 11 together form a rectangular space. Diagonal tie rod 6 penetrates from the end of back rib 8 of one side plate 11 and passes through the adjacent back rib 8 on another adjacent side plate 11, and the two ends of diagonal stay rod 6 passing through back rib 8 are respectively pierced with The gusset 61 and the diagonal tie rod 6 pass through the end of the gusset 61 and are threaded with fastening bolts 62 , so as to realize the fixed connection of the adjacent side plates 11 by connecting the back ribs 8 on the adjacent side plates 11 . The gusset 61 changes the line contact between the fastening bolt 62 at the end of the diagonal stay rod 6 and the side plate 11 into surface contact, thereby enhancing the fixing effect of the diagonal stay rod 6 on adjacent side plates 11 .

As shown in FIG. 1 , the inner mold 2 includes two bent portions 21 opening toward the center of the inner mold 2 and two opposite straight-edge portions 22 , the bent portions 21 and the straight-edge portions 22 together form a straight groove shape. The bending part 21 is composed of two corner molds 211 fixedly connected to each other, and the far ends of the two corner molds 211 are fixedly connected with the straight side part 22 by bolts. The connecting part of the corner mold 211 and the straight side part 22 is the demoulding adjustment part 3 arranged obliquely. Adjacent adjustment parts 3 form a figure-eight shape with openings facing the center of the inner mold 2 .

As shown in FIG. 2 , the angle of inclination between the adjustment portion 3 and the straight side portion 22 toward the side wall of the outer mold 1 is 45° to 60°. The inclined adjustment part 3 enhances the contact area between the corner mold 211 and the straight side part 22. When the concrete in the mold cavity 7 is solidified, the adjustment part 3 is not easily deformed by force. During the disassembly process of the inner mold 2, it can be Disassemble the straight part 22, facing the eight-shaped adjustment part 3 in the center of the inner mold 2, so that when the straight part 22 is separated from the adjacent corner form 211, the corner form 211 will not be subjected to extrusion force, thereby effectively reducing the impact on the concrete. damage by shearing.

As shown in Figure 3, the side of the adjustment part 3 (see Figure 2) facing the center of the inner mold 2 is provided with two flange connecting plates 31 that abut against each other, and the two flange connecting plates 31 are connected to the corner mold 211 and the straight mold respectively. The side portion 22 is fixedly connected.

As shown in FIG. 4 , several connecting holes 311 corresponding to each other are opened on the two flange connecting plates 31 , flange bolts 312 are pierced in the connecting holes 311 , and the two flange connecting plates 31 are connected by flange bolts 312 . A pre-installation hole 313 is provided below the connection hole 311. The pre-installation hole 313 is a waist-shaped hole. The pre-installation hole 313 is pierced with a pre-connection bolt 314. The pre-installation holes 313 of the two flange connecting plates 31 correspond to each other and pass through the pre-installation hole. The connecting bolt 314 realizes preliminary connection and fixation, and there is a buffer gap 3131 between the pre-installation hole 313 and the pre-connection bolt 314, which is used for fine adjustment of the relative displacement of the corner mold 211 and the straight edge part 22 within a certain range after the preliminary connection and fixation , until the connecting holes 311 on the two flange connecting plates 31 correspond to each other.

As shown in Figure 4, a leveling mechanism 4 is provided on the top of the adjustment part 3 (see Figure 2). The leveling mechanism 4 includes a groove 41 arranged on the top wall of the adjustment part 3. The mold 211 and the top wall of the straight portion 22. Two vertically downward leveling holes 411 are respectively opened at both ends of the bottom wall of the groove 41 in the longitudinal direction. A U-shaped frame 42 is embedded in the groove 41 , and the two insertion ends of the U-shaped frame 42 are inserted into the two leveling holes 411 respectively, and the thickness of an arm of the U-shaped frame 42 away from the insertion end is the same as the depth of the groove 41 . After the corner mold 211 and the connecting flange plate on the straight side part 22 abut against each other and are preliminarily fixed by the pre-connecting bolt 314, the insertion ends of the U-shaped frame 42 can be respectively inserted into the leveling holes 411 at both ends of the groove 41, The top surface of the U-shaped frame 42, the top wall of the corner mold 211 and the top wall of the straight side part 22 are in the same plane by means of a tool, so as to realize the accurate alignment of the adapter mold and the straight side part 22. At this time, the flange connecting plate 31 The connection holes 311 on the top are corresponding to each other, and then the flange bolts 312 are pierced in the corresponding connection holes 311 to realize the connection and fixation of the corner mold 211 and the straight side part 22 .

The specific implementation process: first, the two corner molds 211 of the bending part 21 are accurately assembled and fixed, and then the corner mold 211 and the flange connecting plate 31 of the straight side part 22 are abutted against each other, and the corner mold 211 and the flange connection plate 31 are connected by pre-connecting bolts 314. The straight side part 22 is pre-connected and fixed, and then the leveling mechanism 4 levels the corner mold 211 and the top wall of the straight side part 22, so that the connecting holes 311 on the flange connecting plate 31 correspond one-to-one and are connected by flange bolts 312. The two flange connecting plates 31 are fixedly connected to realize the fixing of the corner mold 211 and the straight edge portion 22, and the assembly of the inner mold 2 is completed so far. Then, the connection between the side plate 11 of the outer mold 1 and the inner mold 2 is realized by pulling the bolt 5, and the fixing between the adjacent side plates 11 is realized by the diagonal tie rod 6, the installation of the outer mold 1 is completed, and concrete is injected into the mold cavity 7 After the concrete is solidified, disassemble the diagonal tie rod 6, the pull bolt 5, the side plate 11 of the outer mold 1 and the inner mold 2 in sequence. The removal of the inner mold 2 first removes the straight edge portion 22 along the square towards the center of the inner mold 2 plates, and then removes the corner mold 211 of the bending portion 21 successively to realize the complete removal of the steel formwork.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. After reading this description, those skilled in the art can make modifications to the embodiment without creative contribution according to needs, but as long as it is within the utility model All new claims are protected by patent law.

Claims (8)

1. a kind of steel form including external mold (1) and internal model (2), passes through split bolt (5) between the external mold (1) and internal model (2) It connects and forms die cavity (7), it is characterized in that：The external mold (1) is including four side plates (11) and encloses rectangular space, adjacent institute Side plate (11) is stated to be fixedly connected by brace (6)；

The internal model (2) includes bending part (21) of two openings towards internal model (2) center and two straight flange portions being oppositely arranged (22), the bending part (21) and straight flange portion (22) enclose straight trough shape jointly；

The bending part (21) is mutually permanently connected by two inside lock moulds (211) and formed, the corner mould (211) and straight flange portion (22) demoulding adjustment position (3) is in junction and is bolted, and adjustment position (3) is inclined to set.

2. a kind of steel form according to claim 1, it is characterized in that：Adjacent adjustment position (3) forms opening direction The splayed at internal model (2) center.

3. a kind of steel form according to claim 2, it is characterized in that：Adjustment position (3) and straight flange portion (22) length The angle of inclination in direction is 60 degree.

4. a kind of steel form according to claim 1, it is characterized in that：Adjust position (3) are towards internal model (2) center Side is set there are two the flange connecting plate (31) that mutually abuts, two flange connecting plates (31) respectively with corner mould (211) It is fixedly connected with straight flange portion (22), several mutual corresponding connecting holes (311) is offered on two flange connecting plates (31), Flange bolt (312) is equipped in the connecting hole (311), passes through flange bolt between two flange connecting plates (31) (312) it connects.

5. a kind of steel form according to claim 4, it is characterized in that：Pre-installation is offered on the flange connecting plate (31) Hole (313), pre-installation hole (313) are waist-shaped hole；

It is connected between the pre-installation hole (313) of the adjacent flange connecting plate (31) by pre-connection bolt (314), the pre- peace There are buffer gap (3131) between dress hole (313) and pre-connection bolt (314).

6. a kind of steel form according to claim 1, it is characterized in that：Levelling gear is equipped at the top of adjustment position (3) (4), groove (41) of the levelling gear (4) including being arranged on adjustment position (3) roof, groove (41) length direction Both ends are located at corner mould (211) and the roof of straight flange portion (22), the both ends difference of groove (41) the bottom wall length direction respectively Leveling hole (411) there are one opening up vertically downward；

Three-sides-square shape frame (42) is embedded in the groove (41), two insertion ends of three-sides-square shape frame (42) are inserted into two leveling holes respectively (411) in and an arm thickness of the three-sides-square shape frame (42) far from insertion end is identical with groove (41) depth.

7. a kind of steel form according to claim 6, it is characterized in that：The brace (6) from wear on the outside of side plate (11) to The outside of adjacent side plates (11) is equipped with angle piece (61) between brace (6) end and the outside of side plate (11).

8. a kind of steel form according to claim 7, it is characterized in that：The internal model (2) is arranged on the middle part of external mold (1).