Lintel formwork erecting device

Abstract

The utility model belongs to the technical field of building construction equipment, and discloses a lintel formwork erecting device which comprises two supporting assemblies and a forming assembly, the two supporting assemblies correspond to wall bodies on the two sides of a hole in a one-to-one mode, each supporting assembly comprises a main frame body, two first fixing pieces and two sets of first fastening pieces, and the main frame body is attached to the wall bodies; the two fixing pieces are arranged on the main frame body in a spaced mode and symmetrically distributed on the two opposite sides of the wall body, the two sets of first fastening pieces are correspondingly and adjustably connected to the two first fixing pieces, and the two sets of first fastening pieces can move in the opposite directions to clamp the wall body; the forming assembly comprises two L-shaped bearing pieces, a forming mold and a connecting piece, the two ends of each L-shaped bearing piece are correspondingly erected on the two first fixing pieces, the two L-shaped bearing pieces are oppositely arranged and connected through the connecting piece to form a mounting space, and the forming mold is arranged in the mounting space and provided with a pouring groove. According to the utility model, the problems of damage to a wall body, passage blocking and template expansion in the construction process can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building construction equipment technical field especially relates to a beam formwork device. BACKGROUND

[0002] The beam is an important building component, which is usually arranged at the door and window hole and the like, and mainly functions to bear various loads from the upper part of the hole and transfer the loads to the wall on both sides of the hole to ensure the structural stability of the building at the hole part. Common types of the beam include reinforced concrete beam, reinforced brick beam and brick flat arch beam.

[0003] The traditional beam formwork device comprises a formwork and a supporting vertical rod, the formwork is fixed on the wall structure by steel nails or bolts, and the supporting vertical rod is located on the ground and abuts against the formwork assembly at the end away from the ground, thereby playing a supporting role.

[0004] However, when fixing the formwork, the steel nails need to be punched into the wall, which not only makes the construction difficult, but also damages the wall structure; meanwhile, the lower supporting vertical rod hinders the passing through the door and window hole, affecting the construction efficiency; and the formwork is prone to swelling when pouring the concrete, affecting the forming quality of the beam. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a beam formwork device to solve the problems of damaging the wall, hindering the passing and swelling of the formwork in the construction process.

[0006] To achieve the aim, the utility model adopts the following technical scheme:

[0007] The beam formwork device comprises:

[0008] Two supporting assemblies corresponding to the walls on both sides of the hole, the supporting assembly comprises a main frame, two first fixing members and two groups of first fasteners, the main frame abuts against the wall, the two fixing members are arranged on the main frame in a spaced manner and symmetrically distributed on the opposite sides of the wall, the two groups of first fasteners are adjustably connected to the two first fixing members, and the two groups of first fasteners can move towards each other to clamp the wall;

[0009] A forming assembly comprising two L-shaped supporting members, a forming die and a connecting member, the L-shaped supporting members are correspondingly arranged on the two first fixing members at both ends along the length direction, the two L-shaped supporting members are arranged towards each other and connected by the connecting member to form an installation space, and the forming die is arranged in the installation space and provided with a pouring groove.

[0010] As preferred, the connecting piece comprises a connecting bolt and two fixing nuts, the two fixing nuts are arranged on the bottom of the two L-shaped supporting pieces respectively, and the connecting bolt is screwed on the two fixing nuts in sequence.

[0011] As preferred, the forming assembly further comprises an anti-expansion plate, the anti-expansion plate is arranged on the top of the L-shaped supporting piece, and the side wall of the forming mold is attached to the anti-expansion plate.

[0012] As preferred, the anti-expansion plate is provided with a plurality of anti-expansion plates, and the plurality of anti-expansion plates are arranged along the length direction of the L-shaped supporting piece.

[0013] As preferred, the first fastener comprises an adjusting bolt and two locking nuts, the adjusting bolt is arranged in the first fixing piece, and the two locking nuts are screwed on the adjusting bolt and located on the two sides of the first fixing piece, and the adjusting bolt can be abutted against the wall by rotating.

[0014] As preferred, the first fastener further comprises a pressing plate, and the pressing plate is connected to one end of the adjusting bolt close to the wall.

[0015] As preferred, the supporting assembly further comprises a supporting piece, the supporting piece is arranged on the side of the main frame body away from the first fixing piece, and the two L-shaped supporting pieces are arranged on the supporting piece.

[0016] As preferred, the supporting assembly further comprises an inclined strut, one end of the inclined strut is connected to the main frame body, and the other end of the inclined strut is connected to one end of the supporting piece away from the main frame body.

[0017] As preferred, the supporting assembly further comprises two second fixing pieces and two groups of second fasteners, the two second fixing pieces are arranged on the main frame body and symmetrically distributed on the opposite sides of the wall, the two groups of second fasteners are adjustably connected to the two second fixing pieces correspondingly, and the two second fasteners can clamp the wall, and the first fixing piece and the second fixing piece are arranged at intervals.

[0018] As preferred, the forming mold comprises two side plates and a bottom plate, the two side plates are vertically attached to the vertical supporting parts of the two L-shaped supporting pieces, the bottom plate is horizontally laid on the horizontal supporting parts of the two L-shaped supporting pieces, and the bottom plate is arranged between the two side plates and surrounded by the two side plates to form the pouring groove.

[0019] The utility model discloses the beneficial effects of:

[0020] The utility model provides a beam formwork device, when fixed support subassembly, only need to be pasted in main frame body in wall body, make two first fixed spare symmetry distribution in wall body opposite two sides, adjust two first fastener again, make two first fastener can move to the wall body clamping opposite direction, can. This fixed mode will not cause the damage to the wall body, avoided because the wall body structure strength reduces that punchs the nail, guarantees the stability and durability of wall body, simultaneously, support subassembly is fixed to the wall body, will not hinder the normal traffic of door hole mouth in the construction process. And, through setting up two L type support spare, provide the installation space for the placement of forming mould, forming mould need not be fixed to the wall body, further reduce the construction problem that causes improper connection with the wall body, simultaneously, connecting piece firmly links together two L type support spare, when the concrete is poured, two L type support spare can play the restraint to forming mould, prevent forming mould from expanding to two sides, limit the deformation of forming mould, reduce the occurrence of the expansion mould phenomenon, guarantee the forming quality of beam. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the front view of the beam formwork device of the utility model embodiment;

[0022] Figure 2 It is the plan view of the beam formwork device of the utility model embodiment;

[0023] Figure 3 It is the partial structure schematic view of support subassembly of the utility model embodiment;

[0024] Figure 4 It is the plan view of support subassembly of the utility model embodiment;

[0025] Figure 5 It is the front view of forming assembly of the utility model embodiment;

[0026] Figure 6 It is the partial structure schematic view of forming assembly of the utility model embodiment.

[0027] In the drawing:

[0028] 1, support subassembly; 11, main frame body; 12, first fixed spare; 13, first fastener; 131, adjusting bolt; 132, locking nut; 133, pressing plate; 14, support spare; 15, inclined strut; 16, second fixed spare; 17, second fastener;

[0029] 2, forming assembly; 21, L type support spare; 22, forming mould; 221, side plate; 222, bottom plate; 23, connecting piece; 231, connecting bolt; 232, fixed nut; 24, anti-expansion plate;

[0030] 100, wall body. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described below in detail with reference to the drawings, wherein the same or similar components are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.

[0032] In the description of the present application, unless explicitly defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the description of the present application, unless explicitly defined and limited otherwise, the feature "on" or "below" the first feature can include the feature and the first feature in direct contact, or it can include the feature and the first feature not in direct contact but in contact through another feature between them. Moreover, the feature "on", "above" and "above" the first feature includes the feature directly above and obliquely above the first feature, or only indicates that the feature is higher in horizontal height than the first feature. The feature "below", "below" and "below" the first feature includes the feature directly below and obliquely below the first feature, or only indicates that the feature is lower in horizontal height than the first feature.

[0034] The technical scheme of the present application is further illustrated below in conjunction with the drawings and through specific embodiments.

[0035] As shown in Figures 1-6 The present application provides a beam formwork device, which comprises two support assemblies 1 and a forming assembly 2. The two support assemblies 1 correspond to the walls 100 on both sides of the hole, and the support assembly 1 comprises a main frame body 11, two first fixing members 12 and two groups of first fasteners 13. The main frame body 11 is attached to the wall 100, the two fixing members 12 are arranged on the main frame body 11 and symmetrically distributed on the opposite sides of the wall 100, and the two groups of first fasteners 13 are adjustably connected to the two first fixing members 12, and the two groups of first fasteners 13 can move towards each other to clamp the wall 100. The forming assembly 2 comprises two L-shaped supporting members 21, a forming die 22 and a connecting member 23. The L-shaped supporting members 21 are correspondingly arranged on the two first fixing members 12 along the length direction of the L-shaped supporting members 21, and the two L-shaped supporting members 21 are arranged towards each other and connected by the connecting member 23 to form an installation space. The forming die 22 is arranged in the installation space and is provided with a pouring groove.

[0036] In the fixing of the support assembly 1, only need to paste the main frame body 11 to the wall 100, so that the two first fixing members 12 are symmetrically distributed on the opposite sides of the wall 100, and then adjust the two first fasteners 13 so that the two first fasteners 13 can move towards each other to clamp the wall 100. This fixing method will not damage the wall 100, avoiding the reduction of the structural strength of the wall 100 caused by punching and nailing steel nails, ensuring the stability and durability of the wall 100. At the same time, the support assembly 1 is fixed to the wall 100, which will not hinder the normal passage of the hole during construction. Moreover, by providing two L-shaped supporting members 21, installation space is provided for the placement of the forming mold 22, and the forming mold 22 does not need to be fixed to the wall 100, further reducing the construction difficulties caused by improper connection with the wall 100. At the same time, the connecting member 23 firmly connects the two L-shaped supporting members 21 together, and during concrete pouring, the two L-shaped supporting members 21 can constrain the forming mold 22, prevent the forming mold 22 from expanding to both sides, limit the deformation of the forming mold 22, reduce the occurrence of mold expansion, and thus ensure the forming quality of the beam.

[0037] In the present embodiment, as shown in Figure 3 , the main frame body 1 is a rectangular structure formed by four steel members welded in sequence, and the first fixing member 12 is also a steel member welded at the opposite corner points of the main frame body 1. The steel member itself has high strength and rigidity, and can form a stable frame system.

[0038] In other embodiments, the main frame body 11 can also be a rectangular steel plate structure, and the first fixing member 12 can be a steel plate with a larger thickness.

[0039] Specifically, as shown in Figure 4 , each group of first fasteners 13 includes at least two first fasteners 13, and the first fasteners 13 are arranged at intervals along the length direction of the first fixing member 12, which can exert clamping force on the wall 100 at different positions, better resist the pressure, prevent the main frame body 11 from moving, and thus ensure the stability of the whole beam formwork device.

[0040] In the present embodiment, each group of first fasteners 13 includes two first fasteners 13.

[0041] In other embodiments, each group of first fasteners 13 can also include three first fasteners 13, and the number of first fasteners 13 in each group of first fasteners 13 is not specifically limited.

[0042] More specifically, the first fastener 13 comprises an adjusting bolt 131 and two locking nuts 132, the adjusting bolt 131 is arranged in the first fixing member 12, and the two locking nuts 132 are screwed on the adjusting bolt 131 and located on both sides of the first fixing member 12, and the adjusting bolt 131 can be abutted against the wall 100 by rotating. By rotating the adjusting bolt 131, the length of the adjusting bolt 131 can be flexibly adjusted to adapt to the wall 100 of different thicknesses; when the adjusting bolt 131 is abutted against the wall 100 and adjusted to the appropriate position, the adjusting bolt 131 can be firmly fixed on the first fixing member 12 by tightening the two locking nuts 132, so as to prevent the adjusting bolt 131 from loosening due to vibration, external force and other factors during construction, thereby ensuring the stable clamping of the support assembly 1 to the wall 100 and further improving the stability and reliability of the whole beam formwork device.

[0043] In other embodiments, the first fastener 13 can also be a telescopic rod, the fixed end of which is connected to the first fixing member 12, and the telescopic end of which can slide relative to the fixed end to abut against the wall 100.

[0044] More specifically, the first fastener 13 further comprises a pressing plate 133 connected to one end of the adjusting bolt 131 close to the wall 100. This can effectively avoid the situation that the contact area between the end of the adjusting bolt 131 and the wall 100 is extremely small, resulting in excessive local pressure and damage to the surface of the wall 100.

[0045] More specifically, the pressing plate 133 is rotatably connected to the end of the adjusting bolt 131. When the adjusting bolt 131 is tightened against the wall 100, the pressing plate 133 will not rotate with the adjusting bolt 131, so as not to rub against the wall 100 and damage the wall 100.

[0046] In this embodiment, the pressing plate 133 is a steel structure, and the rotating connection between the pressing plate 133 and the adjusting bolt 131 is realized by a bearing, one end of the adjusting bolt 131 is welded to the inner ring of the bearing, and the outer ring of the bearing is welded to the pressing plate 133.

[0047] Specifically, as shown in Figures 1-4 The support assembly 1 further comprises a support member 14 arranged on the side of the main frame 11 away from the first fixing member 12, and the two L-shaped supporting members 21 are both arranged on the support member 14. During the construction of the beam formwork, the forming assembly 2 needs to withstand the huge pressure generated during concrete pouring. When the two L-shaped supporting members 21 are arranged on the support member 14, part of the pressure originally borne by the first fixing member 12 can be distributed to the support member 14, the pressure distribution is more uniform, the risk of local overloading is avoided, the risk of structural damage due to stress concentration is reduced, and the stability of the whole beam formwork device is significantly improved.

[0048] In the embodiment, the support 14 is a U-shaped structure formed by three steel members welded in sequence.

[0049] In other embodiments, the support 14 can also be a rectangular steel plate with a thickness of not less than 10 mm, which is welded vertically to the side of the main frame body 11.

[0050] More specifically, as shown in Figure 1 and Figure 3 , the support assembly 1 further comprises a diagonal brace 15, one end of which is connected to the main frame body 11 and the other end is connected to the end of the support 14 away from the main frame body 11. The diagonal brace 15, together with the main frame body 11 and the support 14, forms a triangular structure that can effectively resist external forces from different directions. The connection of the diagonal brace 15 makes the cooperation between the support 14 and the main frame body 11 stronger. Originally, the support 14 mainly bears part of the vertical load of the L-shaped support 21, and the main frame body 11 is responsible for connecting with the wall 100 and transmitting the overall load. After the addition of the diagonal brace 15, it closely links the two together, making the support assembly 1 a more integrated structural system, greatly improving the ability to resist external interference.

[0051] In the embodiment, the diagonal brace 15 is a steel member, and the number of diagonal braces 15 is two, which are arranged at intervals and welded on the support 14, forming a double-triangular stable structure. The angle between the diagonal brace 15 and the main frame body 11 is 30°-60°, such as 30°, 45° or 60°.

[0052] In other embodiments, the number of diagonal braces 15 can also be three, without specific limitation on the number of diagonal braces 15.

[0053] Specifically, the support assembly 1 further comprises two second fixing members 16 and two sets of second fasteners 17. The two second fixing members 16 are arranged at intervals on the main frame body 11 and located on the opposite sides of the wall 100. The two sets of second fasteners 17 are adjustably connected to the two second fixing members 16 correspondingly, and the two second fasteners 17 can clamp the wall 100. The first fixing member 12 and the second fixing member 16 are arranged at intervals along the height direction of the main frame body 11. The second fastener 7 works together with the existing first fastener 13 to achieve clamping of the wall 100 at multiple height positions, which can more effectively resist the displacement trend of the main frame body 11 relative to the wall 100 caused by the pressure generated by concrete pouring and other external forces, reduce the risk of overall inclination or sliding of the main frame body 11, and thus improve the stability of the connection between the support assembly 1 and the wall 100.

[0054] More specifically, each group of the second fasteners 17 comprises at least two second fasteners 17, which are arranged at intervals along the length direction of the second fixing member 16. The clamping force can be applied to the wall 100 at different positions, which can better resist the pressure and prevent the main frame 11 from displacement, thereby ensuring the stability of the whole beam formwork device.

[0055] In the embodiment, each group of the second fasteners 17 comprises two second fasteners 17.

[0056] In other embodiments, each group of the second fasteners 17 can also comprise three second fasteners 17, and the number of the second fasteners 17 in each group is not specifically limited.

[0057] More specifically, the second fastener 17 comprises a bolt and two nuts, the bolt is arranged in the second fixing member 16, and the two nuts are screwed on the bolt and located on both sides of the second fixing member 16. By rotating the bolt, the bolt can be abutted against the wall 100. By rotating the bolt, the extension length of the bolt can be flexibly adjusted, so that the bolt can adapt to the wall 100 with different thicknesses. When the bolt is abutted against the wall 100 and adjusted to the appropriate position, the bolt can be firmly fixed on the second fixing member 16 by tightening the two nuts, so as to prevent the bolt from loosening due to vibration, external force and other factors during construction, thereby ensuring the stable clamping of the support assembly 1 to the wall 100 and further improving the stability and reliability of the whole beam formwork device.

[0058] In other embodiments, the second fastener 17 can also be a telescopic rod, the fixed end of which is connected to the second fixing member 16, and the telescopic end can slide relative to the fixed end to abut against the wall 100.

[0059] More specifically, the second fastener 17 further comprises an abutting plate, which is rotatably connected to one end of the bolt close to the wall 100 through a bearing.

[0060] The forming die 22 can be an integral structure or a split structure.

[0061] Specifically, as shown in FIG. 6, the forming die 22 comprises a first forming die 22a and a second forming die 22b. Figure 5As shown, the molding mold 22 includes two side plates 221 and a bottom plate 222. The two side plates 221 are vertically attached to the vertical support portions of the two L-shaped support members 21, and the bottom plate 222 is horizontally laid on the horizontal support portions of the two L-shaped support members 21, sandwiched between the two side plates 221, forming a casting trough. At the construction site, workers can vertically attach the side plates 221 to the vertical support portions of the L-shaped support members 21, and then horizontally lay the bottom plate 222 on the horizontal support portions of the L-shaped support members 21, sandwiched between the two side plates 221. This assembly method does not require complex tools or specialized skills, shortening the mold installation time and improving construction efficiency. Similarly, after construction, disassembly is also very convenient; each component can be quickly separated, facilitating transportation and storage, and making it convenient for subsequent projects. Furthermore, by adjusting the distance between the two side plates 221 and selecting a suitable length of bottom plate 222, the construction requirements of lintels of different widths and lengths can be flexibly adapted.

[0062] In this embodiment, the L-shaped support 21 is an angle steel.

[0063] In other embodiments, the L-shaped support can also be formed by vertically welding two steel plates.

[0064] In this embodiment, the two ends of the side plate 221 extend beyond the corresponding ends of the L-shaped support member 21 along the length direction, forming a double-sided cantilever structure. The length of the bottom plate 222 is equal to the length of the horizontal support portion of the L-shaped support member 21, and both are equal to the designed width of the doorway. The two side plates 221 constitute a clamping mechanism, which forms a tight contact with the wall 100 through its inner working surface, achieving reliable positioning during construction.

[0065] Specifically, the molding assembly 2 also includes an anti-expansion plate 24, which is disposed on the top of the L-shaped support 21, and the sidewall of the molding die 22 is attached to the anti-expansion plate 24. The anti-expansion plate 24 further restricts the displacement and deformation of the molding die 22, preventing the molding die 22 from expanding outward.

[0066] In this embodiment, the anti-expansion plate 24 is a steel plate component, and the distance between its top surface and the bottom surface of the L-shaped support 21 is not less than two-thirds of the height of the side plate 221.

[0067] More specifically, such as Figure 6 As shown, multiple anti-expansion plates 24 are provided, and the multiple anti-expansion plates 24 are spaced apart along the length of the L-shaped support member 21. In the construction of long-span lintels, the concrete pressure borne by the middle part may be different from that at both ends. The multiple anti-expansion plates 24 can play their respective roles according to the positional differences, so as to prevent the forming mold 22 from cracking or deforming due to uneven local pressure, ensuring that the entire forming mold 22 is subjected to uniform force in the length direction, and improving the forming quality of the lintel.

[0068] In the embodiment, each L-shaped support piece 21 is provided with three anti-expansion plates 24 at intervals along the length direction.

[0069] In other embodiments, each L-shaped support piece 21 can also be provided with four anti-expansion plates 24 at intervals along the length direction. The number of anti-expansion plates 24 provided on each L-shaped support piece 21 is not specifically limited here.

[0070] Specifically, as shown in Figure 5 The connecting piece 23 includes a connecting bolt 231 and two fixing nuts 232, which are provided on the bottom of the two L-shaped support pieces 21 one by one, and the connecting bolt 231 is screwed to the two fixing nuts 232 in sequence. The screwing mode of the connecting bolt 231 and the two fixing nuts 232 can provide stable fastening force. In the process of beam formwork, when the lateral pressure generated by concrete pouring acts on the L-shaped support piece 21, this screwing structure can effectively resist the lateral pressure and prevent the relative displacement of the two L-shaped support pieces 21. Moreover, by rotating the connecting bolt 231, the distance between the two L-shaped support pieces 21 can be accurately controlled, so as to adapt to the construction requirements of beams of different widths.

[0071] In other embodiments, the connecting piece 23 includes a connecting rod and two fixing blocks, which are provided on the bottom of the two L-shaped support pieces 21 one by one. A clamping block can be provided on the fixing block, and a clamping groove matched with the clamping block is provided on the connecting rod. By clamping the clamping block into the clamping groove, the connection between the connecting rod and the fixing block is achieved.

[0072] In the embodiment, the installation steps of the beam formwork device are as follows:

[0073] Step 1, two support assemblies 1 are transported to the working positions on both sides of the door opening respectively, the installation height of the support assembly 1 is adjusted, the main frame body 11 is completely attached to the surface of the wall 100, the two first fixing pieces 12 are symmetrically distributed on both sides of the wall 100, and the two second fixing pieces 16 are also symmetrically distributed on both sides of the wall 100.

[0074] Step 2, the adjusting bolt 131 of the first fastening piece 13 is rotated, so that the pressing plate 133 abuts against the wall 100, and then the two locking nuts 132 are tightened for anti-loosening locking; the bolt of the second fastening piece 17 is rotated, so that the abutting plate abuts against the wall 100, and then the two nuts are tightened for anti-loosening locking.

[0075] Step 3, the two L-shaped support pieces 21 are hoisted to the installation position, so that the two L-shaped support pieces 21 are placed at intervals towards each other and are placed on the two first fixing pieces 12.

[0076] Step 4, correspondingly abutting two side plates 221 to the vertical supporting parts of the two L-shaped supporting members 21, then horizontally laying the bottom plate 222 on the horizontal supporting parts of the two L-shaped supporting members 21, and clamping the bottom plate 222 between the two side plates 221;

[0077] Step 5, rotating the connecting bolt 231, adjusting the interval between the two L-shaped supporting members 21, so that the wall body 100 is clamped between the two side plates 221, at this time, the overall structure of the beam formwork device is installed, and a reliable formwork support system is provided for the subsequent concrete pouring operation.

[0078] The whole installation steps are sequentially carried out, from the in-place of the supporting assembly 1 to the fixing, then to the installation of the L-shaped supporting members 21, the side plates 221 and the bottom plate 222, and finally to the interval adjustment and fixing, the logic is clear, the construction personnel can easily understand and master the operation process, and the operation difficulty is reduced.

[0079] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation on the embodiments of the utility model. For the ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not enumerated. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A device for formwork of lintels, characterised in that, The utility model relates to a kind of wall forming device, including: Two support assemblies (1) correspond to the wall (100) on both sides of the hole, the support assembly (1) includes main frame (11), two first fixed parts (12) and two groups of first fasteners (13), the main frame (11) is attached to the wall (100), two fixed parts (12) are spaced apart on the main frame (11) and symmetrically distributed on the opposite sides of the wall (100), two groups of first fasteners (13) are correspondingly adjustably connected to two first fixed parts (12), and two groups of first fasteners (13) can move towards and hold the wall (100); Forming assembly (2) includes two L-shaped supports (21), forming die (22) and connecting piece (23), the L-shaped support (21) is correspondingly set up on two first fixed parts (12) along the length direction of the L-shaped support (21), and two L-shaped supports (21) are arranged towards and connected by connecting piece (23) to form installation space, forming die (22) is arranged in the installation space and is provided with pouring groove.

2. The lintel formwork device according to claim 1, wherein, The connecting piece (23) includes connecting bolt (231) and two fixed nuts (232), two fixed nuts (232) are correspondingly arranged at the bottom of two L-shaped supports (21), and the connecting bolt (231) is sequentially screwed into two fixed nuts (232).

3. The lintel formwork device according to claim 1, wherein, The forming assembly (2) further includes anti-expansion plate (24), and the anti-expansion plate (24) is arranged at the top of the L-shaped support (21), and the side wall of the forming die (22) is attached to the anti-expansion plate (24).

4. The lintel formwork device according to claim 3, wherein, The anti-expansion plate (24) is provided with a plurality of anti-expansion plates (24), and the plurality of anti-expansion plates (24) are arranged at intervals along the length direction of the L-shaped support (21).

5. The lintel formwork device according to claim 1, wherein, The first fastener (13) includes adjusting bolt (131) and two locking nuts (132), the adjusting bolt (131) is arranged in the first fixed part (12), and the two locking nuts (132) are screwed into the adjusting bolt (131) and located on the two sides of the first fixed part (12), and by rotating the adjusting bolt (131), the adjusting bolt (131) can be abutted against the wall (100).

6. The lintel formwork device according to claim 5, wherein, The first fastener (13) further includes a pressing plate (133) connected to one end of the adjusting bolt (131) close to the wall (100).

7. The lintel formwork device of claim 1, wherein The support assembly (1) further includes a support (14) arranged on the side of the main frame (11) away from the first fixed part (12), and the two L-shaped supports (21) are arranged on the support (14).

8. The lintel formwork device according to claim 7, wherein, The support assembly (1) further includes a diagonal brace (15) connected to one end of the main frame (11) and the other end of the support (14) away from the main frame (11).

9. The lintel formwork device of claim 1, wherein, The support assembly (1) further comprises two second fixing members (16) and two groups of second fasteners (17), the two second fixing members (16) are arranged on the main frame body (11) and symmetrically distributed on opposite sides of the wall body (100), the two groups of second fasteners (17) are correspondingly and adjustably connected to the two second fixing members (16), and the two second fasteners (17) can clamp the wall body (100), and the first fixing members (12) and the second fixing members (16) are arranged at intervals.

10. The lintel formwork device according to any one of claims 1-9, wherein, The forming mold (22) comprises two side plates (221) and a bottom plate (222), the two side plates (221) are correspondingly vertically attached to the vertical supporting portions of the two L-shaped supporting members (21), the bottom plate (222) is horizontally laid on the horizontal supporting portions of the two L-shaped supporting members (21), and is clamped between the two side plates (221) and surrounded by the two side plates (221) to form the pouring groove.

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