A recyclable steel formwork for construction

Abstract

The present invention relates to the technical field of building formwork, and in particular to a recyclable steel formwork for construction, comprising a formwork body, a support plate, an L-shaped connecting plate, a sliding plate and a card plate, etc.; the formwork body is fixedly connected with the support plate; a plurality of L-shaped connecting plates are fixedly connected to one side of the formwork body; a connecting groove capable of accommodating the L-shaped connecting plate is provided on the other side of the formwork body; a sliding plate is connected to the connecting groove by a sliding rail damping sliding manner; and a plurality of card plates are fixedly connected to the surface of the sliding plate. The present invention can splice and assemble two steel formworks by only moving and inserting the card plate, which not only saves time and effort compared to the prior art of screwing a plurality of bolts, but also can improve the overall assembly and splicing efficiency; and by inserting the insertion rod, the first formwork body and the second formwork body are fixedly locked to avoid the offset and misalignment between the formwork bodies during the pouring process.

Description

Technical Field

[0001] The invention relates to the technical field of building formwork, in particular to a recyclable building steel formwork. Background Art

[0002] Construction steel formwork is a temporary supporting structure used for concrete pouring in construction projects. During the use of steel formwork, people assemble and splice multiple steel formworks together to form a casting model according to the pouring requirements, thereby realizing the pouring of various concrete structural parts such as walls and columns. It has the advantages of flexible splicing and recyclability.

[0003] During the splicing and use of existing steel formworks, adjacent steel formworks are often connected together by bolts. In order to reduce the gap between the spliced ​​steel formworks and improve the firmness of the connection between the steel formworks, more bolt holes are usually set on the connection side of the steel formwork. When assembling, splicing and disassembling the steel formworks, it is necessary to manually install and disassemble the bolts one by one. The installation and disassembly of a large number of bolts consumes a long time, which makes the assembly and disassembly efficiency of the overall steel formwork low, affecting the overall construction efficiency. Summary of the invention

[0004] In order to overcome the disadvantage that the installation and removal of a large number of bolts consume a long time, resulting in low assembly and disassembly efficiency of the overall steel formwork and affecting the overall construction efficiency, the present invention provides a recyclable steel formwork for construction.

[0005] The technical solution of the present invention is: a recyclable steel formwork for construction, comprising a formwork body and a support plate; the formwork body is fixedly connected to the support plate; it also comprises an L-shaped connecting plate, a sliding plate, a clamping plate, a rotating gear and a locking unit; a plurality of L-shaped connecting plates are fixedly connected to one side of the formwork body; a connecting groove for accommodating the L-shaped connecting plate is provided on the other side of the formwork body; a sliding plate is connected in the connecting groove by means of a slide rail damping sliding connection; a plurality of clamping plates are fixedly connected to the surface of the sliding plate; a locking unit for locking the L-shaped connecting plate and the clamping plate is connected to the formwork body; a tooth portion is provided on one of the clamping plates; a rotating gear is rotatably connected in the connecting groove, and the rotating gear meshes with the tooth portion; a socket for plugging in a crank rocker is provided on the surface of the rotating gear.

[0006] As a preferred technical solution of the present invention, the locking unit includes a push-pull plate and an insertion rod; a plurality of connecting holes 1 are opened on the L-shaped connecting plate; a plurality of through holes are opened on the surface of the template body and the surface of the slide rail in the connecting groove, and the through holes are aligned with the connecting holes one by one; a plurality of connecting holes 2 are opened on the card plate; a push-pull plate is slidably connected to the template body; a plurality of insertion rods are fixedly connected to the push-pull plate for cooperating with the connecting hole 1, the through hole and the connecting hole 1 to lock different template bodies.

[0007] As a preferred technical solution of the present invention, the end of the insertion rod is configured to be conical.

[0008] As a preferred technical solution of the present invention, a chamfer is provided at the lower end of the clamping plate.

[0009] As a preferred technical solution of the present invention, it also includes a sliding sealing plate and a rubber plug; a plurality of square holes are opened on the formwork body; a plurality of sliding sealing plates are slidably connected to the plate surface of the formwork body that is not in contact with the cement, and the sliding sealing plates seal the square holes; each sliding sealing plate has a spiral hole for passing steel bars, and the spiral hole is connected to the square hole; a rubber plug is provided at the spiral hole to seal the gap between the steel bars and the spiral connection wall.

[0010] As a preferred technical solution of the present invention, it also includes a handle, a pull rod and an insert plate; each sliding cover plate is fixedly connected to a handle; each handle is rotatably connected to a pull rod through a thread; the template body is fixedly connected to a plurality of insert plates, and the pull rod is located above the insert plates.

[0011] As a preferred technical solution of the present invention, the surface of the plug board is set to be a rough surface.

[0012] As a preferred technical solution of the present invention, it also includes a limit frame, a screw, a movable connecting block, a connecting rod, a fixed semi-ring and a clamping block; each sliding sealing plate is fixedly connected to two limit frames, and the two limit frames are symmetrically distributed with the spiral hole as the symmetry center; each limit frame is rotatably connected to a screw; each screw is rotatably connected to a movable connecting block, and the movable connecting block is in contact with the limit frame; each movable connecting block is rotatably connected to a connecting rod; each connecting rod is provided with a sliding groove; each connecting rod is movably connected to a fixed semi-ring; the fixed semi-ring is provided with a circular sliding rod, and the circular sliding rod moves in the sliding groove; the end of the connecting rod away from the movable connecting block is rotatably connected to the clamping block.

[0013] As a preferred technical solution of the present invention, scale lines are arranged on the surface of the limit frame.

[0014] As a preferred technical solution of the present invention, the surface of the clamping block is set to be a rough surface.

[0015] Beneficial effect: By driving the clamping plate to move and insert it between the L-shaped connecting plate of the second template body and the connecting groove of the first template body, the first template body and the second template body are spliced ​​and assembled together. Compared with manually inserting the bolts one by one to splice the two steel templates, the present invention only needs to move and insert the clamping plate to splice and assemble the two steel templates. Compared with the prior art of screwing several bolts, it not only saves time and effort, but also can improve the overall assembly and splicing efficiency; and by inserting the insertion rod, the first template body and the second template body are fixed and locked to avoid the offset and misalignment between the template bodies during the pouring process.

[0016] By inserting the through-steel bars through the spiral holes and the through-steel square holes and connecting and fixing them with the steel cage, the placed steel cage will not be skewed or offset during the subsequent pouring of concrete and the vibration of the concrete, thereby ensuring the structural strength of the subsequent concrete pouring; and the through-steel bars are driven to move in the through-steel square holes by sliding the cover plate, so that the additional steel bars are close to the steel bars of the main steel cage and apply force in the reverse direction, and the outward expansion type is used to limit the support of the steel cage, and it can adapt to steel cages in different positions and shapes, thereby improving the stability of the steel cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure disclosed by the present invention of a recyclable steel formwork for construction;

[0018] Figure 2 A state diagram of assembling and splicing two template bodies disclosed in the recyclable building steel template of the present invention;

[0019] Figure 3 A schematic diagram of the combined structure of an L-shaped connecting plate, a sliding plate, a rotating gear and a clamping plate disclosed in the recyclable building steel formwork of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the rotating gear, push-pull plate and plug rod assembly disclosed by the recyclable building steel formwork of the present invention;

[0021] Figure 5 A schematic structural diagram of a template body, a push-pull plate and a sliding cover plate assembly disclosed in the recyclable building steel template of the present invention;

[0022] Figure 6 A state diagram of the steel bars threading disclosed by the recyclable building steel formwork of the present invention;

[0023] Figure 7 for Figure 5 A magnified view of point A;

[0024] Figure 8A schematic diagram of the combined structure of the sliding cover plate, the handle and the insert plate disclosed in the recyclable building steel formwork of the present invention;

[0025] Fig. 9 for Figure 8 The enlarged view of point B;

[0026] Fig.10 The present invention is a schematic diagram of the combined structure of a limit frame, a screw rod, a hinge block, a connecting rod, a fixed half ring and a clamping block disclosed in the recyclable building steel formwork of the present invention.

[0027] Among them: 1-template body, 2-L-shaped connecting plate, 21-connecting hole one, 3-sliding plate, 32-rotating gear, 3201-jack, 4-card plate, 41-connecting hole two, 42-tooth portion, 101-push-pull plate, 102-insertion rod, 201-sliding sealing plate, 202-rubber plug, 203-handle, 204-pull rod, 205-insertion plate, 211-limiting frame, 213-screw, 214-hinge block, 215-connecting rod, 216-fixed half ring, 217-clamping block, 301-support plate, 01-connecting groove, 02-through hole, 03-through square hole, 20101-spiral hole, 21501-slide groove, 21601-round slide rod. DETAILED DESCRIPTION

[0028] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention. Example

[0029] A recyclable steel formwork for construction, such as Figure 1-Figure 4 As shown, it includes a template body 1 and a support plate 301; the bottom of the template body 1 is bolted to the support plate 301;

[0030] It also includes an L-shaped connecting plate 2, a sliding plate 3, a clamping plate 4, a rotating gear 32 and a locking unit; a plurality of L-shaped connecting plates 2 are fixedly connected to one side of the template body 1, and the L-shaped connecting plates 2 are equidistantly spaced from top to bottom; a connecting groove 01 is provided on the other side of the template body 1; a sliding plate 3 is connected to the connecting groove 01 by a rail damping sliding connection; a plurality of clamping plates 4 are fixedly connected to the surface of the sliding plate 3; the template body 1 is connected to a locking unit; a tooth portion 42 is provided on one of the clamping plates 4; a rotating gear 32 is rotatably connected to the connecting groove 01, and the rotating gear 32 is meshed with the tooth portion 42; a socket 3201 for plugging in a crank rocker is provided on the surface of the rotating gear 32, and by inserting the crank rocker into the socket 3201, the crank rocker is manually operated to rotate, which drives the rotating gear 32 to rotate, and then the rotating gear 32 drives the clamping plate 4 and the sliding plate 3 to move downward through the tooth portion 42.

[0031] The locking unit includes a push-pull plate 101 and an insertion rod 102; a plurality of connection holes 21 are opened on the L-shaped connecting plate 2; a plurality of through holes 02 are opened on the surface of the template body 1 and the surface of the slide rail in the connecting groove 01, and the through holes 02 are aligned one by one with the connection holes 21; a plurality of connection holes 41 are opened on the clamping plate 4; a push-pull plate 101 is slidably connected to the side of the template body 1 away from the L-shaped connecting plate 2; and the push-pull plate 101 is fixedly connected with the same number of insertion rods 102 as the number of connection holes 41.

[0032] The end of the insertion rod 102 is configured to be conical, so as to facilitate the insertion of the insertion rod 102 into each of the connection holes 1 21 and the connection holes 2 41 .

[0033] The lower end of the clamping plate 4 is provided with a chamfer to facilitate the insertion of the clamping plate 4 into the range covered by the L-shaped connecting plate 2 to form a fit.

[0034] During the assembly and splicing process of the steel formwork, the first formwork body 1 is manually placed on the ground and fixedly supported by the support plate 301, and then the second formwork body 1 is manually placed next to the first formwork body 1, and then the L-shaped connecting plate 2 on the second formwork body 1 is controlled to dock in the connecting groove 01 of the first formwork body 1. At this time, the first formwork body 1 and the second formwork body 1 are on the same horizontal line, forming a Figure 2 The structure shown, combined with Figure 3 It is understood that the sliding plate 3 of the first template body 1 is within the coverage of the L-shaped connecting plate 2 of the second template body 1, but the two are not in direct contact; then the crank rocker is manually inserted into the insertion hole 3201 of the rotating gear 32, and the rotating gear 32 is driven to rotate by rotating the crank rocker. The rotating gear 32 drives the sliding plate 3 and the card plate 4 to move downward and snap into the L-shaped connecting plate 2 through the tooth portion 42 of the meshing transmission card plate 4, and a tight fit is formed between the card plate 4 and the L-shaped connecting plate 2, forming Figure 4 As shown, after the assembly is completed, the crank rocker is pulled out and put away; the same operation is performed, and multiple template bodies 1 are gradually assembled and spliced ​​together from right to left to form a complete steel template on one side of the entire casting mold.

[0035] At the same time, the formwork body 1 is assembled together by moving and docking. When the formwork body 1 is used to pour concrete later, the poured concrete will exert pressure on the formwork body 1, making the formwork body 1 assembled together easily deviate and misalign, thereby affecting the quality of subsequent concrete pouring. Although in order to avoid the deviation between the spliced ​​steel formworks in the prior art, people usually need to use bolts to tighten and connect the two steel formworks in series, which requires a lot of effort to unscrew the tightened bolts during subsequent disassembly, and the labor cost required is high, which is inconvenient to use; therefore, when the sliding plate 3 and the card are driven manually, After the plate 4 moves downward and is inserted into the L-shaped connecting plate 2, the connecting hole 21 of the first template body 1 and the connecting hole 121 and the through hole 02 of the second template body 1 are aligned. Then the push-pull plate 101 and the insertion rod 102 of the first template body 1 are manually pulled toward the second template body 1, and the insertion rod 102 moves and inserts and penetrates the connecting hole 121, the connecting hole 241 and the through holes 02 of the two template bodies 1; the card plate 4 cooperates with the L-shaped connecting plate 2 and the insertion of the insertion rod 102, and works together to fix and lock the first template body 1 and the second template body 1 in the horizontal and longitudinal directions of the horizontal plane, as shown in FIG. Figure 4 As shown, it is possible to avoid the situation where the template bodies 1 are offset and misaligned during the pouring process.

[0036] The steel formwork after multiple formwork bodies 1 are spliced ​​together requires a total of two sets of spliced ​​steel formworks and are placed symmetrically. Then two other ordinary plates are used to seal the two side openings formed by the two symmetrically placed sets of steel formworks. The two sets of spliced ​​steel formworks and two other plates together form a rectangular pouring space. Subsequently, concrete is poured into the enclosed space from above to complete the concrete pouring work.

[0037] After the pouring and solidification of the concrete is completed, when the steel formwork is dismantled, the manual operation is reversed according to the order of installation of the steel formwork. It is only necessary to pull the push-pull plate 101 to pull out the plug rod 102, and then use the crank rocker to pull the sliding plate 3 and the clamping plate 4 upward to disengage the L-shaped connecting plate 2, and release the connection between the two formwork bodies 1. Compared with bolts that need to be screwed one by one, the present invention can realize the synchronous assembly of multiple groups of fixed structures. There is no need to screw and install or remove the bolts one by one like in the prior art. The two steel formworks can be quickly spliced, assembled or disassembled, which saves time and effort and improves the overall assembly efficiency. Example

[0038] On the basis of Example 1, Figure 5-Figure 10As shown, it also includes a sliding sealing plate 201 and a rubber plug 202; two square holes 03 are opened on the template body 1; the sliding sealing plates 201 equal to the number of the square holes 03 are slidably connected to the plate surface of the template body 1 that is not in contact with the cement, and the sliding sealing plates 201 block the square holes 03; each sliding sealing plate 201 has a spiral hole 20101, and the spiral hole 20101 is connected to the square hole 03; a rubber plug 202 is arranged at the spiral hole 20101, and when the steel bar is penetrated, the gap between the steel bar and the spiral hole 20101 is blocked by putting the rubber plug 202 on the surface of the steel bar and screwing it into the spiral hole 20101 to prevent concrete from overflowing during pouring.

[0039] It also includes a handle 203 , a pull rod 204 and an insert plate 205 ; each sliding cover plate 201 is fixedly connected to a handle 203 ; each handle 203 is rotatably connected to a pull rod 204 through a thread; the template body 1 is fixedly connected to a plurality of insert plates 205 , and the pull rod 204 is located above the insert plates 205 .

[0040] The surface of the plug plate 205 is set to be a rough surface. When the pull rod 204 moves down and presses against the plug plate 205, the friction between the pull rod 204 and the pull rod 204 can be increased, thereby improving the friction barrier effect on the pull rod 204 and preventing the sliding cover plate 201 from moving randomly.

[0041] The sliding cover 201 also includes a limit frame 211, a screw 213, an articulated block 214, a connecting rod 215, a fixed half ring 216 and a clamping block 217; each sliding cover 201 is fixedly connected to two limit frames 211, and the two limit frames 211 are symmetrically distributed with the spiral hole 20101 as the symmetry center; each limit frame 211 is rotatably connected to a screw 213; each screw 213 is rotatably connected to a hinge block 214, and the hinge block 2 14 is in contact with the limit frame 211; each hinge block 214 is rotatably connected to a connecting rod 215; each connecting rod 215 is provided with a slide groove 21501; each connecting rod 215 is movably connected to a fixed half ring 216; the fixed half ring 216 is provided with a circular slide bar 21601, and the circular slide bar 21601 moves in the slide groove 21501; the end of the connecting rod 215 away from the hinge block 214 is rotatably connected to a clamping block 217.

[0042] The surface of the limit frame 211 is provided with scale lines. When people control the movement of the hinge block 214, they can move it with reference to the set scale lines, so that the hinge blocks 214 on both sides can move synchronously.

[0043] The surface of the clamping block 217 is set to be a rough surface, which can increase the friction force in contact with the steel bar and clamp the steel bar.

[0044] On the basis of the above-mentioned embodiment 1, in order to improve the strength of concrete pouring, a rolled steel cage is often placed in the concrete pouring area. The steel cage placed in the pouring space surrounded by multiple steel templates generally relies on its own stability to maintain stability, but the concrete needs to be vibrated during the concrete pouring process, which makes the steel cage likely to be skewed and offset, affecting the casting effect; therefore, a through-hole 03 is opened on the template body 1, and after the steel cage is manually placed in the enclosed space, the additional two steel bars are respectively inserted from the spiral hole 20101 and the through-hole 03 of a spliced ​​steel template, and are inserted from the through-hole 03 and the spiral hole 20101 of another symmetrical spliced ​​steel template, and the steel bars are passed between the pouring spaces enclosed by the two steel templates, as shown in FIG. Figure 6 As shown, at this time, the additional two steel bars pass through the steel cage, and then the rubber plug 202 is manually put on the surface of the steel bar and screwed into the spiral hole 20101, and the gap between the steel bar and the spiral hole 20101 is blocked by the rubber plug 202 to prevent the concrete from overflowing from the gap between the steel bar and the spiral hole 20101 during pouring, and the through-hole 03 is always blocked by the sliding cover 201 to prevent the concrete from overflowing, and then the sliding cover 201 and other connected parts can be pulled by the handle 203 to move, and the sliding cover 201 drives the through-hole steel bar to move in the through-hole 03, so that the additional steel bar is close to the steel bar of the main steel cage and exerts force in the reverse direction, and the outward expansion type is used to limit the support of the steel cage, and can adapt to steel bars in different positions and different shapes. The steel cage improves the stability of the steel cage; after completing the adjustment of the inserted steel bars, the pull rod 204 on the handle 203 is manually screwed to move the pull rod 204 downward to hold the plug plate 205, and the friction force is used to limit the position of the pull rod 204 to prevent the sliding cover 201 from moving at will; this can ensure that during the subsequent pouring of concrete and the vibration of the concrete, the placed steel cage will not be skewed or offset, thereby ensuring the structural strength of the subsequent concrete pouring; at the same time, the gap between the steel bar and the spiral hole 20101 is blocked by the rubber plug 202. Even if the diameter of the central accommodating hole of the rubber plug 202 is equal to the diameter of the smallest steel bar, the rubber's own deformability can be used to accommodate steel bars with larger diameters, so that the steel formwork can adapt to steel bars of different thicknesses.

[0045] When the pouring is completed and the steel formwork is removed, the inserted steel bars form a part of the steel cage, which is used together to increase the structural strength of the concrete pouring, and the excess steel bars can be cut and removed later without affecting the overall use of the concrete; and the sliding cover 201 is slidably connected to the formwork body 1. After the pouring of the concrete is completed, during the cleaning and maintenance of the steel formwork, the sliding cover 201 can be slid to separate from the formwork body 1 for cleaning, avoiding the occurrence of cleaning dead corners due to a narrow angle between the formwork body 1 and the steel formwork body 1.

[0046] During the pouring of concrete, concrete will generate stress due to temperature changes, and the generated stress will act on the inserted steel bars, thereby affecting the state of the steel cage. Therefore, after the sliding cover 201 is limited and fixed by the pull rod 204, the hinge block 214, the fixed half ring 216 and the connecting rod 215 are driven by manual rapid rotation of the screw 213 to move the two fixed half rings 216 close to each other, and refer to the scale lines set on the surface of the limit frame 211 to make the scale lines corresponding to the two hinge blocks 214 the same, until the two fixed half rings 216 can fit together to form a complete circular ring, surrounding the inserted steel bars, and then the two fixed half rings 216 are manually locked together by a latch, as shown in FIG. Fig. 9 As shown, the articulated block 214 is in contact with the limit frame 211, so that when the rotating screw 213 is rotated, the articulated block 214 can move stably, and then the two screws 213 are rotated slowly and synchronously manually, and the position of the articulated block 214 is further fine-tuned by the screw 213, so that the two articulated blocks 214 continue to move slowly toward each other, and refer to the scale lines set on the surface of the limit frame 211, so that the two articulated blocks 214 can move synchronously toward each other, and the articulated block 214 drives the connecting rod 215 to move. The rings 216 are fixed together, so during the rotation of the connecting rod 215, the fixed half ring 216 and the circular slide bar 21601 on the fixed half ring 216 will remain stable, and the slide groove 21501 of the connecting rod 215 will slide relative to the circular slide bar 21601, thereby causing one end of the connecting rod 215 fixed to the clamping block 217 to move together with the clamping block 217 toward the middle of the circular ring formed by the fixed half ring 216; when the circular slide bar 21601 has not yet slid to the end of the slide groove 21501 close to the hinge block 214, The clamping block 217 contacts and fits the surface of the steel bar, and at this time, the hinge block 214 can move further. The hinge block 214 moves further, and the circular slide bar 21601 slides to the end of the slide groove 21501 close to the hinge block 214. Then, the hinge block 214 will be completely fixed and cannot move, and the screw rod 213 cannot be further twisted. At this time, the two clamping blocks 217 clamp the steel bar to prevent the inserted steel bar from being moved due to stress during the concrete pouring process. In addition, when the clamping block 217 clamps and fixes After the steel bars are placed, the screw 213 is tightened manually, so that the screw 213 drives the hinge block 214 to generate a force moving in the direction of the spiral hole 20101. The force of the hinge block 214 is transmitted via the connecting rod 215 and the clamping block 217 to apply a friction thrust to the steel bars in the direction away from the formwork body 1. At this time, the steel bars are passed through the casting space, and a friction thrust is applied to the passed steel bars away from the steel formwork, thereby offsetting the stress generated by the concrete pouring to a certain extent, reducing the stress effect, and thus improving the quality of concrete pouring.

[0047] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A recyclable steel formwork for construction, comprising a formwork body (1) and a support plate (301); the formwork body (1) is fixedly connected to the support plate (301); the characteristics are: The template body (1) also comprises an L-shaped connecting plate (2), a sliding plate (3), a clamping plate (4), a rotating gear (32) and a locking unit; a plurality of L-shaped connecting plates (2) are fixedly connected to one side of the template body (1); a connecting groove (01) capable of accommodating the L-shaped connecting plate (2) is provided on the other side of the template body (1); a sliding plate (3) is connected to the connecting groove (01) in a damping sliding manner via a slide rail; a plurality of clamping plates (4) are fixedly connected to the surface of the sliding plate (3); the template body (1) is connected to a locking unit for locking the L-shaped connecting plate (2) and the clamping plate (4); a tooth portion (42) is provided on one of the clamping plates (4); a rotating gear (32) is rotatably connected to the connecting groove (01), and the rotating gear (32) meshes with the tooth portion (42); a plug hole (3201) for plugging in a crank rocker is provided on the surface of the rotating gear (32); The locking unit comprises a push-pull plate (101) and an insertion rod (102); a plurality of connection holes (21) are formed on the L-shaped connection plate (2); a plurality of through holes (02) are formed on the surface of the template body (1) and the surface of the slide rail in the connection groove (01), and the through holes (02) are aligned one by one with the connection holes (21); a plurality of connection holes (41) are formed on the clamping plate (4); the template body (1) is slidably connected with the push-pull plate (101); and a plurality of insertion rods (102) are fixedly connected to the push-pull plate (101) and are used to cooperate with the connection holes (21), the through holes (02) and the connection holes (21) to lock different template bodies (1).

2. The recyclable construction steel formwork according to claim 1 is characterized in that: The end of the insertion rod (102) is configured to be conical.

3. The recyclable construction steel formwork according to claim 1 is characterized in that: The lower end of the clamping plate (4) is provided with a chamfer.

4. The recyclable construction steel formwork according to claim 1, characterized in that: The invention also comprises a sliding sealing plate (201) and a rubber plug (202); a plurality of through-holes (03) are provided on the formwork body (1); a plurality of sliding sealing plates (201) are slidably connected to the plate surface of the formwork body (1) that is not in contact with cement, and the sliding sealing plates (201) seal the through-holes (03); each sliding sealing plate (201) has a spiral hole (20101) for passing a steel bar, and the spiral hole (20101) is connected to the through-hole (03); a rubber plug (202) is provided at the spiral hole (20101) for sealing the gap between the steel bar and the spiral connection wall.

5. The recyclable construction steel formwork according to claim 4 is characterized in that: It also includes a handle (203), a pull rod (204) and an insert plate (205); each sliding cover plate (201) is fixedly connected to a handle (203); each handle (203) is rotatably connected to a pull rod (204) via a thread; the template body (1) is fixedly connected to a plurality of insert plates (205), and the pull rod (204) is located above the insert plates (205).

6. The recyclable construction steel formwork according to claim 5, characterized in that: The surface of the inserting plate (205) is set to be a rough surface.

7. The recyclable construction steel formwork according to claim 4 is characterized in that: The invention also comprises a limit frame (211), a screw rod (213), a movable connection block, a connecting rod (215), a fixed half ring (216) and a clamping block (217); each sliding sealing plate (201) is fixedly connected to two limit frames (211), and the two limit frames (211) are symmetrically distributed with the spiral hole (20101) as the symmetry center; each limit frame (211) is rotatably connected to a screw rod (213); each screw rod (213) is rotatably connected to a movable connection block, and the movable connection block is The block contacts the limit frame (211); each movable connection block is rotatably connected to a connection rod (215); each connection rod (215) is provided with a slide groove (21501); each connection rod (215) is movably connected to a fixed half ring (216); the fixed half ring (216) is provided with a circular slide rod (21601), and the circular slide rod (21601) moves in the slide groove (21501); one end of the connection rod (215) away from the movable connection block is rotatably connected to a clamping block (217).

8. The recyclable construction steel formwork according to claim 7 is characterized in that: The surface of the limiting frame (211) is provided with scale lines.

9. A recyclable construction steel formwork according to any one of claims 7-8, characterized in that: The surface of the clamping block (217) is set to be a rough surface.

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