CN110005194A - A formwork fixture that replaces the tie bolts through the die and is reinforced step by step - Google Patents

Abstract

The invention discloses a formwork fixture for replacing the through-die tie bolts and step-by-step reinforcement. Several pairs of side mold main keels, the two side mold main keels of each pair are connected by M12 lead screws, and the upper part of each side mold main keel is connected with an adjustable lead screw through M16 bolts. The adjustable lead screw includes a lead screw and an adjusting nut matched with the lead screw, a steel pipe support rod is provided on the outer side of the screw at the lower end of the adjusting nut, and the steel pipe support rod includes a seamless steel pipe, and the non- The upper part of the seamless steel pipe is provided with through screw holes, and M8 nuts are welded on both sides of the seamless steel pipe at the through screw holes. The invention fundamentally guarantees the construction safety, quality and work efficiency of the cast-in-place structure, simplifies the construction procedure, reduces the construction cost and accelerates the construction progress.

Description

A formwork fixture that replaces the tie bolts through the die and is reinforced step by step

technical field

The invention relates to the technical field of installation and construction of cast-in-place beam formwork, in particular to a formwork fixture that replaces through-die tie bolts and is reinforced step by step.

Background technique

In the current conventional cast-in-place frame, frame-shear wall structure system, the production and installation of formwork engineering occupies a very large proportion in building construction. For each cubic concrete member, an average of 4-5m2 of formwork is required. The resources consumed by the formwork project, in the general beam-slab, frame and plate-wall structure, the cost accounts for about 30% of the total cost of the concrete structure project, and the labor input accounts for 28-45%. important. At the same time, the concrete structure is directly in contact with the formwork and is formed by the formwork system. The production and installation quality of the formwork system directly affects the physical quality and appearance of the concrete components. Therefore, the use of safe, reliable, economical and reasonable formwork technology is of great significance to ensure the forming requirements of concrete components, improve work efficiency, reduce engineering costs and achieve safe and civilized construction.

In the traditional process, the cast-in-place beam formwork system is generally installed by a combination of panels, primary and secondary keels, through-die tie bolts and step-by-step tightening. Among them, the side and bottom panels of the beam are made of multi-layer wood plywood, the secondary keel of the beam side is made of 50*80mm longitudinal straight square wood, the main keel is made of double ￠48*3.5mm steel pipes or 50*100mm square wood, and the side molds use M12 or M14 through-die bolts are unloaded for tension. 50*80mm square wood is used as the secondary keel in the longitudinal direction of the beam bottom, and the main keel is made of ￠48*3.5mm steel pipe bracket crossbar. Both sides of the beam bottom are clamped step by step to clamp the secondary keel under the side mold of the beam, and the spacing between each step is not greater than 600mm.

There are many problems in the actual use of the method of reinforcing the cast-in-place beam formwork by using the through-die tie bolts and step-by-step tightening, and the specific manifestations are as follows:

1. Bolt holes must be drilled on the beam side formwork every time the formwork is installed to use the tie bolts. Repeated drilling not only increases labor costs, but also destroys the integrity and tightness of the panel, resulting in slurry leakage during concrete pouring. It affects the look and feel of the component after forming, and at the same time leads to low turnover of the side mold and high material loss rate; and the wood chip residue left by the formwork drilling is not easy to clean up inside the formwork, resulting in structural defects, which directly affects the physical quality of concrete components.

2. The pull-screws are buried in the concrete and cannot be taken out. The one-time use of materials consumes a lot of materials, and the dismantling process of the formwork is very difficult, which is very easy to damage the formwork, resulting in material waste; if the pull-bolt needs to be used for turnover, a PVC sleeve must be added in the beam. However, after taking out the pair of pull screws, through holes are formed in the components. The inner wall of the PVC casing is smooth and has poor adhesion to the concrete.

3. For basement and outdoor cast-in-place beam formwork, water-stop type tie bolts must be used, and the screw is a one-time investment, which increases the material consumption.

4. The use of step-by-step reinforcement of the formwork is easy to cause the reinforcement to be in place, resulting in expansion of the formwork and slurry leakage. It is basically feasible for beams with small cross-sectional dimensions, but for beams with a cross-sectional height of more than 700mm, it cannot be guaranteed to bear enough concrete lateral pressure. It is difficult to effectively guarantee the structural safety and reinforcement quality, and it is difficult to find problems when they occur.

5. The step-by-step tightening only has a clamping effect on the lower keel of the beam side formwork, the reinforcement area and scope are small, and because the bottom of the beam is suspended under the step-by-step tightening, there is a lack of effective tie-fixing measures. During the concrete vibrating process The vibration generated is easy to cause the failure of step-by-step loosening, resulting in a quality accident caused by the expansion of the bottom of the side mold.

6. The main keel of the side mold is generally made of double ￠48*3.5mm steel pipes or 50*100mm square wood. The short steel pipes are mostly leased, and the on-site consumption is large and the rental cost is high; the square wood is easy to lose after being cut short, and the loss rate is high. , and cannot be used for other components, resulting in material waste.

SUMMARY OF THE INVENTION

In view of the above technical problems in the related art, the present invention proposes a formwork fixture that replaces the through-die tie bolts and reinforced step by step, which can overcome the above deficiencies of the prior art.

For realizing the above-mentioned technical purpose, the technical scheme of the present invention is realized like this:

A formwork fixture that replaces the through-die tie bolts and is reinforced step by step, including a cast-in-place beam pouring space composed of a beam side form, a beam bottom form, and a plate bottom form, and several pairs of side forms are installed on the beam side form. The main keel, the two side mold main keels of each pair are connected by M12 lead screws, and the upper part of each side mold main keel is connected with an adjustable lead screw through M16 bolts. The screw includes a lead screw and an adjusting nut matched with the lead screw. A steel pipe strut is arranged on the outer side of the lead screw at the lower end of the adjusting nut. The steel pipe strut includes a seamless steel pipe, and the upper part of the seamless steel pipe is There are through screw holes, M8 nuts are welded on both sides of the seamless steel pipe at the through screw holes, each M8 nut is connected with an M8 butterfly bolt, and the lower end of the seamless steel pipe is connected with a The trough-type connector is connected with a steel pipe hoop through M8 anchor bolts, and the steel pipe hoop is fixed on the beam bottom crossbar below the beam bottom mold, and the main keel of each side mold is G-type tool clips are connected below, and angle-steel fasteners are connected to the G-type tool clips, and the angle-steel fasteners are connected to the beam bottom crossbar below the beam bottom mold through U-shaped bolts.

Further, the M12 lead screw is connected with a nut and a supporting backing plate, and the nut and the supporting backing plate are arranged on both sides of the main keel of each side mold.

Further, each of the side mold main keels includes two angle steels, the upper ends of the two angle steels are connected by welding two steel bars, and the upper parts of the two angle steels are provided with bolts for the M16 bolts to pass through. hole.

Preferably, the upper end of the lead screw is welded with a slotted lead screw connector, the slotted lead screw connector is provided with bolt holes, and the upper part of each of the side mold main keels passes through the M16 bolts through the The bolt holes are connected with the slotted lead screw connecting piece of the adjustable lead screw.

Further, a plate bottom cross bar is arranged below the plate bottom formwork, a square wooden keel is arranged between the beam bottom formwork and the beam bottom cross bar and between the plate bottom formwork and the plate bottom cross bar, and the beam A square wooden keel is arranged between the side mold and the main keel of the side mold.

Preferably, the lower end of the seamless steel pipe is provided with a groove, and the included angle between the plane where the groove is located and the axis of the seamless steel pipe is 60°.

Preferably, a steel plate is welded on the seamless steel pipe at the groove, and the steel plate is welded and connected with the groove-shaped connector.

Preferably, the steel pipe hoop is made of two pieces, and each piece includes a hoop and a butt clamp plate, the butt clamp plate is provided with a bolt hole, and the slot-shaped connector passes through the bolt hole through the M8 anchor bolt and is connected to the bolt hole. The butt splint of the steel tube hoop is connected.

Preferably, the left and right sides of the vertical surface of the angle steel fastener are provided with notches, and the G-shaped tool clamp includes a clamping body, the clamping body is connected with the notches, and the clamping body is connected There are M12 threaded rods for clamping the side mould main keel.

Preferably, the bottom surface of the angle steel fastener is provided with two bolt holes, and the angle steel fastener passes through the two bolt holes through U-shaped bolts and is connected to the beam bottom crossbar below the beam bottom mold .

Beneficial effects of the present invention: the present invention replaces the traditional technique of using die-piercing bolts and tightening the formwork step by step, and solves the problems of repeated drilling of formwork, water seepage and air permeability of components, large material loss, etc. The disadvantages of high labor cost and the failure of reinforcement to expand and leak slurry fundamentally ensure the construction safety, quality and work efficiency of the cast-in-place structure, simplify the construction process, reduce the construction cost, and speed up the construction progress.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is according to the embodiment of the present invention a kind of replacement die-pulling tie bolt and the installation structure diagram of the formwork clamp that reinforces step by step;

Fig. 2 is the A-A direction sectional view of Fig. 1;

Fig. 3 is the front view of the side mold main keel of the present invention;

Fig. 4 is the top view of the side mold main keel of the present invention;

Fig. 5 is the structural representation of the adjustable lead screw of the present invention;

Fig. 6 is the schematic diagram of the steel pipe strut of the present invention;

Fig. 7 is A-A sectional view of Fig. 6;

Fig. 8 is the front view of the steel pipe hoop of the present invention;

Fig. 9 is the side view of the steel pipe hoop of the present invention;

Fig. 10 is the structural representation of the angle steel fastener of the present invention;

Fig. 11 is the structural representation of the G-type tool holder of the present invention;

In the picture: 1. Cast-in-place beam pouring space; 2. Beam side formwork; 3. Beam bottom formwork; 4. Square wooden keel; 5. Plate bottom formwork; , two angle steel; 9, lead screw; 91, adjusting nut; 10, angle steel fastener; 101, notch; 11, G-type tool clip; 111, clip body; 112, M12 screw; 12, U-bolt ; 13, M12 lead screw; 14, M16 bolt; 15, seamless steel pipe; 16, M8 nut; 17, M8 butterfly bolt; 18, groove connector; 19, M8 anchor bolt; 20, supporting backing plate ; 21, grooved screw connector; 22, steel tube hoop; 221, hoop; 222, butt splint; 23, two steel bars.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present invention.

As shown in Figures 1-11, according to an embodiment of the present invention, a formwork fixture for replacing through-die tie bolts and step-by-step reinforcement includes a beam side formwork 2, a beam bottom formwork 3 and a plate bottom formwork 5. The cast-in-place beam pouring space 1, the beam side mold 2 is installed with several pairs of side mold main keels, and the two side mold main keels of each pair are connected by M12 through wire screws 13, each of the side molds The upper part of the mold main keel is connected with an adjustable lead screw through M16 bolts 14. The adjustable lead screw includes a lead screw 9 and an adjusting nut 91 matched with the lead screw 9. The lower end of the adjusting nut 91 is provided. The outer side of the lead screw 9 is provided with a steel pipe support rod. The steel pipe support rod includes a seamless steel pipe 15. The upper part of the seamless steel pipe is provided with a through screw hole, and both sides of the seamless steel pipe 15 at the through screw hole are welded. There are M8 nuts 16, each of the M8 nuts 16 is connected with an M8 butterfly bolt 17, the lower end of the seamless steel pipe 15 is connected with a slotted connector 18, and the slotted connector 18 is anchored by M8 The bolt 19 is connected with a steel pipe hoop 22, the steel pipe hoop 22 is fixed on the beam bottom cross bar 7 below the beam bottom mold 3, and a G-type tool clamp 11 is connected below each of the side mold main keels. , the G-shaped tool clip 11 is connected with an angle steel fastener 10, and the angle steel fastener 10 is connected with the beam bottom cross bar 7 below the beam bottom mold 3 through U-shaped bolts 12.

In a specific embodiment, the M12 lead screw 13 is connected with a nut and a supporting backing plate 20, and the nut and the supporting backing plate 20 are arranged on both sides of each of the side mold main keels.

In a specific embodiment, each of the side mold main keels includes two angle steels 8, the upper ends of the two angle steels 8 are welded and connected by two steel bars 23, and the upper parts of the two angle steels 8 are provided with for The bolt holes through which the M16 bolts 14 pass.

In a specific embodiment, the upper end of the lead screw 9 is welded with a slotted lead screw connector 21, the slotted lead screw connector 21 is provided with bolt holes, and the upper part of each side mold main keel is The M16 bolts 14 pass through the bolt holes and are connected to the slotted lead screw connecting piece 21 of the adjustable lead screw.

In a specific embodiment, a plate bottom cross bar 6 is provided below the plate bottom mold 5, between the beam bottom mold 3 and the beam bottom cross bar 7 and between the plate bottom mold 5 and the plate bottom cross bar 6 All are provided with a square wooden keel 4, and a square wooden keel 4 is arranged between the beam side mold 2 and the main keel of the side mold.

In a specific embodiment, the lower end of the seamless steel pipe 15 is provided with a groove, and the included angle between the plane where the groove is located and the axis of the seamless steel pipe 15 is 60°.

In a specific embodiment, a steel plate 19 is welded on the seamless steel pipe at the groove, and the steel plate 19 is connected to the groove-shaped connecting piece 18 by welding.

In a specific embodiment, the steel pipe hoop 22 is made of two pieces, and each piece includes a hoop 221 and a butt clamp plate 222. The butt clamp plate 222 is provided with bolt holes, and the slot-shaped connector 18 passes through the M8 The anchor bolts 19 pass through the bolt holes and are connected to the butt joint plate 222 of the steel pipe hoop 22 .

In a specific embodiment, the left and right sides of the vertical surface of the angle steel fastener 10 are provided with notches 101 , and the G-shaped tool clamp 11 includes a clamping body 111 , the clamping body 111 and the notches 101 The clamp body 111 is connected with an M12 screw rod 112 for clamping the main keel of the side mold.

In a specific embodiment, the bottom surface of the angle steel fastener 10 is provided with two bolt holes, and the angle steel fastener 10 passes through the two bolt holes and the beam bottom mold through the U-shaped bolt 12 . 3. The beam bottom crossbar 7 below is connected.

In order to facilitate the understanding of the above-mentioned technical solutions of the present invention, the above-mentioned technical solutions of the present invention will be described in detail below through specific usage modes.

According to the present invention, a formwork fixture for replacing through-die tie bolts and step-by-step reinforcement includes a main keel of a side form, a main keel locking device, a diagonal bracing system, and M12 tie-pull bolts. The specific dimensions of each component and the The production method is as follows:

(1) Making the main keel of the side mold

The main keel of the beam side formwork is made of double 50*50*5mm angle steel in parallel. According to the height of the beam section, it is divided into two types: a-type and b-type. The a-type main keel is 848mm long and is used for beam heights of 450-700mm; b The main keel is 1148mm long, and the beam height is 750-1000mm. Cut two 50*50*5mm angle steels according to the required main keel model, drill bolt holes at the center of the angle steel elevation 100mm away from the upper end, and insert M16 connecting bolts. The double angle steel is welded in parallel with 2 steel bars at the end, and the angle steel spacing is kept at 50mm. The main keel of the side formwork is shown in Figure 3-4.

(2) Making the main keel locking device

The main keel locking device is the combination of angle steel fasteners, M12*48mm U-bolts and G-type tool clips. The angle steel fasteners are made of 50*50*6mm angle steel, the cutting length is 120mm, and 2 are drilled along the longitudinal center of the plane. Bolt holes, with a center-to-center distance of 62mm, are arranged symmetrically on the left and right sides; 35*10mm and 15*22mm notches are cut out on the left and right sides of the angle steel facade respectively. The details of the angle steel fastener production are shown in Figure 10.

Prepare 1 M12*48mm U-bolt made of 304 stainless steel, with an inner diameter of 50mm, a total length of 84mm, and a thread length of 35mm. Also prepare a steel G-type tool holder customized by a professional manufacturer, see Figure 11 for details.

(3) Making a diagonal bracing system

The combination of DN40 steel pipe hoop, steel pipe strut, T20*4 adjustable lead screw and groove connector is used as a diagonal bracing system. The wall thickness of the hoop is 5mm, the wall thickness of the butt splint is 6mm, and it is equipped with 4 M8 anchor bolts with a length of 40mm. The details of the steel tube hoop are shown in Figure 8-9.

The steel pipe struts are made of hot-rolled seamless steel pipes, with an outer diameter of 32mm and a wall thickness of 5mm. See Table 1 for the cutting length.

Table 1 Steel pipe strut and adjustable lead screw size table

Drill through bolt holes 50mm away from the end of the steel pipe with a diameter of 9mm. Weld 2 M8 nuts in the center of the corresponding holes, and screw 2 M8 butterfly bolts into the M8 nuts symmetrically as a self-locking device for fixing the adjustable lead screw; steel pipe The other end is cut into a groove, and the angle with the horizontal plane is 60°, and a 4mm thick steel plate is horizontally welded, and the size of the steel plate is 75*50mm; the flat steel plate is welded with a groove-shaped connector, and the connector is pressed and formed with a 5mm thick steel plate, corresponding to the steel pipe. The bolt positions of the hoop are pre-drilled with bolt holes on the connector, and the details of the production of the steel pipe strut are shown in Figure 6-7.

The model of the adjustable lead screw is T20*4, the cutting length is shown in Table 1, and it is equipped with an adjusting nut. The top of the lead screw is horizontally welded with a grooved lead screw connector. The connector is pressed and formed with a 5mm thick steel plate. The M16 bolt position of the main keel of the beam side mold is pre-drilled with ￠18 bolt holes on the connector. The detailed drawing of the adjustable lead screw See Figure 5.

(4) Make M12 pair braces and pull bolts

Made with M12 lead screw, blanking length = beam width + 370mm, each screw is equipped with 4 M12 nuts and supporting pads.

The basic principle of the present invention, which replaces the through-die tie bolts and the formwork fixture that is reinforced step by step, is that the triangular frame is composed of the main keel of the side form, the cross bar at the bottom of the beam and the oblique support by using the mechanical properties of the triangle stability. , and connect two sets of triangular frames into portal brackets through the anti-bracing and anti-tension bolts at the bottom of the main keel of the side formwork. The horizontal tension makes the force of the triangular frame transmitted along the three sides, and the lateral pressure of the concrete pouring is dispersed in the support system. The tensile stress reduces its own deflection and forms a triangular stable structure. The specific installation steps are as follows:

1. Install the main keel of the side mold

According to the different beam heights, the a-type and b-type side form main keels are selected respectively. The a-type main keel is suitable for the beam height of 450-700mm, and the b-type main keel is suitable for the beam height of 750-1000mm. The horizontal arrangement is arranged at a distance of 600mm, the lower part is clamped on the beam bottom beam, the upper part is pressed against the plate bottom mold and closely attached to the secondary keel of the beam side mold, and the main keel is temporarily fixed by nailing iron nails on the secondary keel on both sides.

2. Install angle steel fasteners

Install the angle steel fasteners close to the main keel of the side mold, and place the plane on the beam bottom crossbar. Use M12*48mm U-bolts to lock the beam bottom crossbars. The U-bolts penetrate into the bolt holes of the angle steel fasteners and tighten with nuts. Fix; tap horizontally with a hammer to make the fasteners closely adhere to the main keel of the side mold, use G-type tool clips to fix the fasteners and the main keel and clamp the beam bottom crossbar to complete the lower locking of the main keel and the beam bottom crossbar , When the angle steel fasteners are installed, both sides of the beam side mold are carried out at the same time, so that the lower part of the main keel of the side mold clamps the secondary keel.

3. Install the diagonal bracing system

The diagonal bracing system is composed of DN40 steel pipe hoop, steel pipe strut, T20*4 adjustable lead screw and groove connector. First, install steel tube hoop on the left and right sides of the beam bottom crossbar. The installation position is determined according to the beam section height and the angle of the diagonal bracing. The distance from the hoop end to the main keel = (beam height-plate thickness-20)*tan30°-80mm .

Insert the adjustable lead screw into the steel pipe strut, and adjust the length by adjusting the nut to meet the installation requirements. Connect the slotted screw connector welded on the upper end of the adjustable screw with the main keel of the side mold with M16 bolts; insert the slotted connector welded at the lower end of the steel pipe strut into the butt splint of the steel tube hoop, and penetrate into the corresponding bolt hole position. Tighten the M8 bolts and make the angle between the diagonal strut and the horizontal plane at 60°. Rotate the adjusting nut to make the diagonal bracing close to the main keel of the side mold, and then tighten the M8 butterfly bolt on the steel pipe strut to lock the lead screw to complete the main keel. It is locked with the upper part of the cross bar at the bottom of the beam, so that the upper part of the main keel of the side mold clamps the secondary keel and forms a triangular support system.

4. Install the support and pull bolts

The bottom of the main keel on the beam side uses M12 through-wire bolts to brace and lock the inner and outer double nuts. The triangular frames on both sides are connected as portal brackets to ensure the stability of the overall formwork support system and to ensure that the fixture has sufficient reinforcement pressure.

5. Adjustment and reinforcement

Correct the center line, elevation and section size of the beam, correct the verticality and straightness of the side mold by rotating the adjusting nut on the adjustable lead screw. After the verification is correct, lock all the anchor bolts of the fixture, check the load holding condition of each part, and ensure that the side mold is correct. The main keel of the mold is closely attached to and clamps the secondary keel of the side mold, and the upper and lower ends of the diagonal bracing are firmly connected to the main keel of the side mold and the cross bar at the bottom of the beam.

To sum up, the present invention replaces the traditional technique of using die-piercing bolts and tightening the formwork step by step, and solves the problems of repeated drilling of the formwork, water seepage and air permeability of components, large material loss, artificial The disadvantages of high cost, failure of reinforcement, and leakage of mold expansion can fundamentally ensure the construction safety, quality and work efficiency of cast-in-place structures, simplify construction procedures, reduce construction costs, and speed up construction progress.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (10)

1. a kind of substitution wears the form clamp that mould split bolt and step fastener are reinforced, including by beam side (2), beam bottom board (3) and The Cast-in-situ Beam casting space (1) of plate bed die (5) composition, which is characterized in that be equipped with several couples of side form masters on the beam side (2) Keel, two side form main joists of every a pair pass through M12 harness cord screw rod (13) connection, each described side form main joist Top pass through M16 bolt (14) and be connected with adjustable screw, the adjustable screw include lead screw (9) and with the lead screw (9) lead screw (9) outside of the regulating nut (91) cooperated, regulating nut (91) lower end is equipped with steel pipe strut, the steel Tube stay bar includes seamless steel pipe (15), and the top of the seamless steel pipe offers perforation screw hole, at the perforation screw hole Seamless steel pipe (15) two sides are welded with M8 nut (16), each described M8 nut (16) is respectively connected with a M8 wing bolt (17), the lower end of the seamless steel pipe (15) is connected with tank-type connecting component (18), and the tank-type connecting component (18) is anchored by M8 Bolt (19) is connected with steel pipe anchor ear (22), and the steel pipe anchor ear (22) is fixed on the beam bottom cross bar below the beam bottom board (3) (7) on, G type tool holder (11) is respectively connected with below each described side form main joist, the G type tool holder (11) is connected with Angle steel fastener (10), the angle steel fastener (10) pass through the beam bottom cross bar (7) below U-bolt and the beam bottom board (3) Connection.

2. a kind of substitution according to claim 1 wears the form clamp that mould split bolt and step fastener are reinforced, feature exists In being connected with nut and matched mat plate (20) on the M12 harness cord screw rod (13), the nut and matched mat plate (20) are located at often The two sides of one side form main joist.

3. a kind of substitution according to claim 1 wears the form clamp that mould split bolt and step fastener are reinforced, feature exists In each described side form main joist includes two angle steel (8), and the upper end of two angle steel (8) passes through two reinforcing bars (23) it is welded to connect, the top of two angle steel (8) is equipped with the bolt hole passed through for the M16 bolt (14).

4. a kind of substitution according to claim 3 wears the form clamp that mould split bolt and step fastener are reinforced, feature exists In the upper end of the lead screw (9) is welded with groove profile lead screw connector (21), and the groove profile lead screw connector (21) is equipped with bolt Hole, the top of each side form main joist pass through M16 bolt (14) across the bolt hole and the adjustable screw Groove profile lead screw connector (21) connection.

5. a kind of substitution according to claim 1 wears the form clamp that mould split bolt and step fastener are reinforced, feature exists Board bottom cross bar (6) are equipped in the lower section of, the plate bed die (5), between the beam bottom board (3) and beam bottom cross bar (7) and plate bed die (5) it is equipped between board bottom cross bar (6) lumps of wood keel (4), lumps of wood dragon is equipped between the beam side (2) and side form main joist Bone (4).

6. a kind of substitution according to claim 5 wears the form clamp that mould split bolt and step fastener are reinforced, feature exists In the lower end of the seamless steel pipe (15) is equipped with groove, the folder where the groove between plane and seamless steel pipe (15) axis Angle is 60 °.

7. a kind of substitution according to claim 6 wears the form clamp that mould split bolt and step fastener are reinforced, feature exists In being welded on the seamless steel pipe at the groove steel plate (19), the steel plate (19) and the tank-type connecting component (18) are welded Connection.

8. a kind of substitution according to claim 7 wears the form clamp that mould split bolt and step fastener are reinforced, feature exists In the steel pipe anchor ear (22) is two panels, and per a piece of including hoop (221) and to fishplate (222), described to fishplate (222) it is equipped with bolt hole, the tank-type connecting component (18) passes through the bolt hole and the steel by M8 anchor bolt (19) Pipe anchor ear (22) connects fishplate (222).

9. a kind of substitution according to claim 8 wears the form clamp that mould split bolt and step fastener are reinforced, feature exists In the left and right sides of angle steel fastener (10) facade offers notch (101), and the G type tool holder (11) includes folder Body (111), the clamp (111) and the notch (101) are cooperatively connected, and are connected on the clamp (111) for clamping The M12 screw rod (112) of the side form main joist.

10. a kind of substitution according to claim 9 wears the form clamp that mould split bolt and step fastener are reinforced, feature exists In being opened up on the bottom surface of the angle steel fastener (10) there are two bolt hole, the angle steel fastener (10) is worn by U-bolt Described two bolts hole are crossed to connect with the beam bottom cross bar (7) below the beam bottom board (3).