Binding mold table for prefabricated reinforcement cage of structural column

Abstract

The invention discloses a structural column prefabricated reinforcement cage binding mold table, and relates to the technical field of reinforcement cage binding, the structural column prefabricated reinforcement cage binding mold table comprises a platform frame, the upper end of the platform frame is provided with a plurality of supporting rollers which are distributed in parallel, one end of the platform frame is vertically fixed with a limiting plate, and a main reinforcement limiting piece is adjustably arranged in an annular adjusting hole; the main rib limiting piece comprises an adjusting beam adjustably arranged on the annular adjusting hole, the adjusting beam is provided with a guide inserting hole penetrating through the side walls of the two sides, a door-shaped handle extending into the guide inserting hole is slidably inserted into the sliding hole, limiting wheels are rotatably inserted into the two ends of the door-shaped handle, and a penetrating gap for a main rib to penetrate through is reserved between the two limiting wheels; and the positions of the two limiting wheels in the guide insertion holes can be adjusted. The main reinforcement limiting piece is adopted for adjusting the transverse penetrating and binding position of the main reinforcement, so that it is guaranteed that the main reinforcement can sequentially penetrate through the multiple stirrups after penetrating through the two limiting wheels and is attached to the binding position of the stirrups, it is not needed that multiple persons cooperatively erect the main reinforcement for binding operation, and the binding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel cage binding, in particular to a prefabricated steel cage binding die platform for a structural column. Background Art

[0002] The binding of prefabricated steel cages for structural columns is an important link in building construction. The quality and standardization of the binding directly affect the bearing capacity and overall stability of the structural columns.

[0003] When tying the steel cage of the structural column of the building, the stirrups and the main reinforcement are tied together using steel bar tying hooks and wires. When tying, it is necessary to ensure that the ties are in an eight-shaped shape with each other and must not be loose or detached. The joints of the stirrups (the overlap of the hooks) should be staggered on the longitudinal steel bars at the four corners to ensure the overall stability of the steel cage.

[0004] At present, tying the main bars of the steel cage requires at least 2-3 people to lift the bars horizontally and keep them in a relatively horizontal state. Multiple workers work together at the same time, which requires a lot of manpower. In addition, when operating manually, for structural columns with thicker diameters, the number of main bars in the entire steel cage will be greater. In this case, the tying workers will spend more time, the tying efficiency will be lower, and the tying accuracy will be difficult to guarantee. Summary of the invention

[0005] The purpose of the present invention is to provide a prefabricated steel cage binding formwork for structural columns to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a prefabricated steel cage binding die for a structural column, comprising: A platform frame, wherein a plurality of supporting rollers arranged parallel to each other are provided at the upper end of the platform frame, and the supporting rollers are used to support a plurality of stirrups to maintain the same binding level; A limit plate is vertically fixed at one end of the platform frame, and an annular adjustment hole is provided on the limit plate. A main reinforcement limiter is adjustable in the annular adjustment hole, and the main reinforcement limiter is used for main reinforcement guide support; The main reinforcement limiter comprises an adjustment beam adjustably arranged on the annular adjustment hole, the adjustment beam is provided with a guide plug hole penetrating through the side walls on both sides, a sliding hole is provided on one side wall of the adjustment beam facing the inner wall of the annular adjustment hole, a door-shaped handle extending into the guide plug hole is slidably inserted in the sliding hole, and the two ends of the door-shaped handle are rotatably inserted with limit wheels; There is an interlaced gap between the two limiting wheels for the main reinforcement to pass through; The positions of the two limiting wheels in the guide sockets can be adjusted, and the two limiting wheels can be adjusted synchronously at any position in the annular adjustment hole, thereby adjusting the position of the main reinforcement insertion.

[0007] In a further embodiment, both axial ends of the adjusting beam are provided with rotation notches, and the rotation notches are rotationally clamped on the radial side walls of the annular adjusting ring; A threaded sleeve is fixed to the side wall of one end of the adjusting beam, and a limiting hole connected to the threaded sleeve is opened at the end of the adjusting beam, a limiting handle is inserted into the inner thread of the threaded sleeve, and a limiting head is provided at the end of the limiting handle which can pass through the limiting hole, and a limiting groove is provided on the side wall of the limiting plate at the edge of the annular adjusting ring, and the end of the limiting head is clamped with the limiting groove at the corresponding position.

[0008] In a further embodiment, a second limiting groove is provided on the side wall of the guide socket facing the sliding hole, a second limiting head plugged with the corresponding second limiting groove is fixed to the side walls of the two ends of the door-shaped handle, a through hole is axially provided on the limiting wheel, a first disk located in the through hole is slidably sleeved on the outer walls of the two ends of the door-shaped handle, a spring and a second disk located in the through hole are sleeved on the outer wall of the second limiting head, the spring is located between the first disk and the second disk, and the second disk is fixedly sleeved with the second limiting head; The elastic force of the spring pushes the second disk in real time, thereby passing the limit head through the through hole and inserting it into the second limit groove.

[0009] In a further embodiment, a support plate for rotatably supporting the support roller is fixedly provided on the platform frame, and an arc-shaped notch is provided on the upper surface of the support plate for rotatably fitting with the outer wall of the support plate.

[0010] In a further embodiment, a plurality of adjustment seats are fixed to one end of the upper end of the platform frame away from the limit plate, one end of the support roller is rotatably fitted with the side wall of the limit plate, and the other end is fixed with a pin shaft rotatably plugged with the side wall of the adjustment seat.

[0011] In a further embodiment, the adjustment seat is provided with an adjustment sliding hole, a T-shaped pull-out block is slidably inserted in the adjustment sliding hole, one end of the pull-out block is fixedly located at a limit head three in the adjustment sliding hole, and a rectangular groove is provided at the end of the pin shaft to be inserted into the limit head three; The other end of the pull block is located outside the adjustment seat and is fixed with a pull ring.

[0012] In a further embodiment, main shafts are rotatably provided on both sides of the platform frame, connecting rods are fixed to both ends of the main shaft axis, a cross bar is rotatably provided between the ends of the two connecting rods, and a plurality of adjustment rods are provided between the main shaft and the cross bar; Both ends of the adjusting rod are fixed with ferrules respectively sleeved with the main shaft and the cross bar, and the ferrules are slidably sleeved with the main shaft; Two hinged rods are hinged between the side walls of two adjacent adjustment rods; Two hinged rods are also hinged between a connecting rod close to the limiting plate and the nearest side wall of the adjusting rod; The two hinged rods are distributed in an X-shaped structure and are hinged at the cross position.

[0013] In a further embodiment, one of the ferrules at the end of an adjustment rod away from the limiting plate is threadedly connected to the cross bar, and the end of the cross bar away from the limiting plate is rotated through the connecting rod and then connected to the adjustment dial.

[0014] In a further embodiment, a stirrup centralizer is further included, and the stirrup centralizers on both sides are used to limit the position of multiple stirrups at the same time; The stirrup straightener includes a sliding seat adjustably arranged on the outer wall of the adjusting rod, a support block fixed on the sliding seat and a clamping plate hinged on both sides of the end of the support block. A torsion spring is provided at the hinge between the clamping plate and the support block. The torsional force of the torsion spring flips the clamping plate around the hinge position to the side close to each other to form a V-shaped structure. The clamping plate is provided with a clamping notch for clamping the side wall of the stirrup edge.

[0015] In a further embodiment, the radial side wall of the adjusting rod is provided with an adjusting groove with an arc-shaped cross section, and the sliding seat is provided with a protrusion slidably engaged with the adjusting groove, and the protrusion is tightly fitted with the inner wall of the adjusting groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention is a prefabricated steel cage binding die table for structural columns. Support rollers are used to support multiple stirrups to maintain the same binding horizontal plane. According to the needs of the main reinforcement binding position, the orientation of the adjustment beam in the annular adjustment hole is adjusted, and then the sliding door handle is driven along the sliding hole to synchronously adjust the position of the two limit wheels along the guide socket, thereby adjusting the specific position of the main reinforcement insertion, so as to ensure that the main reinforcement can pass through multiple stirrups in sequence after passing through the two limit wheels, and fit with the binding position of the stirrups, thereby reducing the binding position error and realizing the support operation of one end of the main reinforcement. It is only necessary to bind the other end of the main reinforcement with a stirrup at the end of the steel cage to form a two-point supported main reinforcement. There is no need for multiple people to work together to set up the main reinforcement for binding operation. A single person can perform binding operations on the remaining stirrups and the main reinforcement in sequence. The above steps are continuously repeated to bind the remaining number of main reinforcements in sequence, thereby improving the binding efficiency and reducing the input of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the present invention; Figure 3 It is a schematic diagram of the main reinforcement limiting member of the present invention; Figure 4 It is a schematic diagram of the splitting of the main reinforcement limiter of the present invention; Figure 5 It is a schematic diagram of the door handle structure of the present invention; Figure 6It is a schematic diagram of the structure of the adjusting rod of the present invention; Figure 7 For the present invention Figure 1 A magnified view of the structure at center; Figure 8 It is a schematic diagram of the structure of the stirrup centralizer of the present invention; Fig. 9 It is a partial cross-sectional view of the stirrup centralizer of the present invention; Fig.10 It is a schematic diagram of the distribution of two clamping plates of the stirrup centralizer of the present invention to maintain the same plane; Fig.11 It is a diagram showing the initial state of two clamping plates of the stirrup centralizer of the present invention; Fig.12 It is a schematic diagram of the disassembled structure of the support roller, the adjustment seat and the pull-out block of the present invention.

[0018] In the figure: 1. platform frame; 11. support plate; 2. support roller; 21. pin shaft; 22. adjustment seat; 23. pull-out block; 24. limit head three; 25. pull ring; 3. limit plate; 31. limit slot one; 4. adjustment beam; 41. door handle; 42. limit plug handle; 43. limit wheel; 44. threaded sleeve; 45. limit slot two; 46. limit head one; 47. limit head two; 48. disk two; 49. disk one; 410. spring; 5. main shaft; 51. connecting rod; 52. cross bar; 53. adjustment rod; 531. adjustment slot; 54. ring; 55. adjustment turntable; 56. hinged rod; 6. sliding seat; 61. support block; 62. card plate; 63. bump. DETAILED DESCRIPTION

[0019] The following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment, this embodiment provides a prefabricated steel cage binding mold platform for structural columns, such as Figure 1 As shown, it includes: a platform frame 1, and a plurality of supporting legs are arranged on the bottom wall of the platform frame 1 to ensure stable support of the platform frame 1.

[0021] The steel cage is composed of a plurality of stirrups arranged in sequence and main bars inserted in the stirrups and tied together. To this end, it is necessary to ensure that the stirrups are stably and evenly spaced. Therefore, a plurality of support rollers 2 are arranged at the upper end of the platform frame 1 and are parallel to each other. The support rollers 2 are used to support the stirrups to maintain the same binding level. Since the stirrups have a small diameter, they cannot be perpendicular to the plurality of support rollers 2 and need to be assisted in alignment.

[0022] For this purpose, a main shaft 5 is rotatably provided on both sides of the platform frame 1, and connecting rods 51 are fixed to both ends of the main shaft 5. A cross bar 52 is rotatably provided between the ends of the two connecting rods 51, and a plurality of adjustment rods 53 are provided between the main shaft 5 and the cross bar 52; the main shaft 5 can be turned around the rotation position with the side wall of the end of the platform frame 1, such as Figure 1 As shown, the main shaft 5 on one side drives the cross bar 52 to flip to an inclined state through the connecting rod 51, and the main shaft 5 on the other side drives the cross bar 52 to flip to a vertical state through the connecting rod 51. That is, when the main shaft 5 and the cross bar 52 are adjusted to the upper side of the platform frame 1, a protective fence is formed on both sides of the platform frame 1.

[0023] In addition, a collar 54 is fixed at both ends of the adjustment rod 53, which is respectively sleeved with the main shaft 5 and the cross bar 52. The collar 54 is slidably sleeved with the main shaft 5. Two hinged rods 56 are hinged between the side walls of two adjacent adjustment rods 53; two hinged rods 56 are also hinged between a connecting rod 51 close to the limit plate 3 and the side wall of the nearest adjustment rod 53; the two hinged rods 56 are distributed in an X-shaped structure and are hinged at the cross position. Multiple adjustment rods 53 are linked by the cross-distributed hinged rods 56. As long as the adjustment rod 53 at the end is pulled along the axial direction of the main shaft 5 or the cross bar 52, the end of the hinged rod 56 and the side wall of the adjustment rod 53 rotate, and the gap between the two adjacent adjustment rods 53 is adjusted.

[0024] In order to ensure that the gap between two adjacent adjustment rods 53 is not adjusted at will after being adjusted, one of the ferrules 54 at the end of an adjustment rod 53 away from the limit plate 3 is threadedly connected to the cross bar 52, and the end of the cross bar 52 away from the limit plate 3 is rotated through the connecting rod 51 and connected to the adjustment dial 55, that is, only one hand is needed to rotate the adjustment dial 55 to drive the cross bar 52 to rotate, and then drive the inner wall of a ferrule 54 threadedly connected to the cross bar 52 to rotate relatively, and the ferrule 54 will adjust the position along the axial direction of the cross bar 52, and the ferrule 54 at the other end of the same adjustment rod 53 will slide synchronously along the main shaft 5, and the two adjacent adjustment rods 53 are linked by the hinge rod 56, which can synchronously drive all the adjustment rods 53 to adjust their positions synchronously. Loosen the adjustment dial 55, the ferrule 54 will no longer adjust the position, and the position of the adjustment rod 53 after adjustment will no longer be adjusted at will.

[0025] When the position of the adjusting rod 53 is adjusted, the stirrup straightener is also included, such as Figure 7 and Figure 8 As shown, the stirrup centralizers on both sides are used to limit the position of multiple stirrups at the same time. The stirrup centralizer installed on each adjusting rod 53 is used to limit the position of the side edge of each stirrup, so the gap between two adjacent adjusting rods 53 represents the gap between two adjacent stirrups.

[0026] Specifically, if Figure 7 , Figure 8 and Fig. 9 As shown, the stirrup straightener comprises a sliding clamp seat 6 adjustably arranged on the outer wall of the adjusting rod 53, a support block 61 fixed on the sliding clamp seat 6, and a clamp plate 62 hinged on both sides of the end of the support block 61. A torsion spring is provided at the hinge between the clamp plate 62 and the support block 61. In the initial state, the torsion force of the torsion spring flips the clamp plate 62 around the hinge position to the side close to each other to form a V-shaped structure, as shown in FIG. Fig.10 As shown, the clamping plate 62 is provided with a clamping notch for clamping the side walls of the side ridges of the stirrups. After the main shaft 5 and the cross bar 52 are rotated to the top of the side of the platform frame 1, the clamping plates 62 of the stirrup straighteners on both sides are arranged relatively to each other as a protective fence, and the clamping notch is used to clamp the stirrups to the side walls of the side ridges on both sides. At this point, multiple support rollers 2 are cooperated to form a limit for the stirrups except for the limit of the upper side wall. And according to the requirements of the spacing between two adjacent stirrups on the entire steel cage, the gap between two adjacent adjustment rods 53 is adjusted, which can adjust the gap between two adjacent clamping plates 62 on the same side, and then adjust the gap between two adjacent stirrups to meet the binding requirements. It frees the hands of workers when binding, and there is no need to hold the stirrups with their hands to perform binding operations.

[0027] An adjustment groove 531 with an arc-shaped cross section is provided on the radial side wall of the adjustment rod 53, and the sliding clamp seat 6 is provided with a protrusion 63 that is slidably engaged with the adjustment groove 531, and the protrusion 63 is tightly fitted with the inner wall of the adjustment groove 531. Since different steel cages have different sizes, the sizes of the bound stirrups are different, so the limit position of the clamp plate 62 needs to be conditioned according to the size of the stirrups. Here, the support block 61 can be pushed along the axial direction of the adjustment rod 53, which can push the protrusion 63 connected to the sliding clamp seat 6 to slide synchronously along the adjustment groove 531, so as to adjust the limit position of the clamp plate 62 and ensure that the clamping notch of the clamp plate 62 can be accurately clamped on the side wall of the stirrup edge.

[0028] Specifically, for the binding operation of the cylindrical structure steel cage of the annular structure, the two clamping plates 62 connected to the same support block 61 are affected by the torque of the torsion spring, and will be as follows: Fig.11 In the V-shaped structure shown, the clamping notch of the clamping plate 62 can fit more closely with the side wall of the stirrup of the annular structure. When the rectangular column structure steel cage is used for binding, the two clamping plates 62 connected to the support block 61 are clamped with the same side wall of the stirrup of the rectangular structure at the same time, and the two clamping plates 52 can be rotated around the hinge position with the support block 61, and the V-shaped structure is turned over to the straight structure, such as Fig.10 As shown, it can better fit the side walls of the stirrups of the rectangular structure.

[0029] After the position of the stirrups is determined, the main reinforcement needs to be limited and tied. Figure 1As shown, a limit plate 3 is vertically fixed at one end of the platform frame 1, and an annular adjustment hole is opened on the limit plate 3. A main reinforcement limit piece is adjustably arranged in the annular adjustment hole, and the main reinforcement limit piece is used for main reinforcement guide support.

[0030] Specifically, Figure 2 , Figure 3 and Figure 4 As shown, the main reinforcement limiting member includes an adjusting beam 4 which can be adjustably arranged on the annular adjusting hole, the adjusting beam 4 is provided with a guide plug hole penetrating through the side walls on both sides, a sliding hole is provided on one side wall of the adjusting beam 4 facing the inner wall of the annular adjusting hole, a door-shaped handle 41 extending into the guide plug hole is slidably inserted in the sliding hole, and the two ends of the door-shaped handle 41 are rotatably inserted with limiting wheels 43; an interlacing gap for the main reinforcement to pass through is left between the two limiting wheels 43; like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the two limiting wheels 43 are adjustable in position in the guide socket, and the two limiting wheels 43 are synchronously adjustable at any position in the annular adjustment hole, thereby adjusting the position where the main reinforcement is inserted. Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, both axial ends of the adjusting beam 4 are provided with rotation notches, which are rotatably clamped on the radial side walls of the annular adjusting ring; a threaded sleeve 44 is fixed to the side wall of one end of the adjusting beam 4, and a limiting hole connected to the threaded sleeve 44 is provided at the end of the adjusting beam 4, and a limiting handle 42 is inserted into the inner thread of the threaded sleeve 44, and a limiting head 46 capable of passing through the limiting hole is provided at the end of the limiting handle 42, and a limiting groove 31 located at the edge of the annular adjusting ring is provided on the side wall of the limiting plate 3, and the end of the limiting head 46 is clamped with the limiting groove 31 at the corresponding position. Moreover, a limiting groove 45 is provided on the side wall facing the sliding hole in the guide socket, and a limiting head 47 connected with the corresponding limiting groove 45 is fixed on the side walls at both ends of the door-type handle 41. A through hole is axially provided on the limiting wheel 43, and a disk 49 located in the through hole is slidably sleeved on the outer walls at both ends of the door-type handle 41. A spring 410 and a disk 48 located in the through hole are sleeved on the outer wall of the limiting head 47. The spring 410 is located between the disk 49 and the disk 48, and the disk 48 is fixedly sleeved with the limiting head 47. The elastic force of the spring 410 pushes the disk 48 in real time, and then the limiting head is inserted into the limiting groove 45 through the through hole.

[0031] When the position of the limit wheel 43 needs to be adjusted, the position of the adjustment beam 4 is adjusted first, and then the position of the limit wheel 43 is adjusted. The specific process is to hold the limit plug handle 42 with one hand, rotate the limit plug handle 42 in the threaded sleeve 44, and separate the limit head 1 46 from the limit groove 1 31. The adjustment beam 4 loses its limit and can be rotated along the annular adjustment hole to adjust the position. Then, hold the door handle 41 and pull up the door handle 41 with a little force to drive the limit head 2 47 to separate from the corresponding limit groove 2 45. In this process, the door handle 41 and the disk 1 49 slide relative to each other, and the disk 2 48 slides synchronously with the limit head 2 47, and can approach the disk. 49, compress the spring 410 to generate rebound potential energy, slide the door handle 41 along the sliding hole, and adjust the position of the two limit wheels 43. When the position of the interlaced gap is determined, release the door handle 41, and use the elastic force of the spring 410 to insert the limit head 47 into the limit groove 45 at the corresponding position again. At the same time, rotate the limit plug handle 42 along the threaded sleeve 44, and screw the limit head 46 into the corresponding limit groove 31. At this time, the positions of the adjustment beam 4 and the limit wheel 43 are fixed. Then the main reinforcement can be passed through the two limit wheels 43 and continue to be pulled horizontally. The adjustment beam 4 is used as a support member to support one end of the main reinforcement. After the main reinforcement passes through the two limit wheels 43, it can pass through multiple stirrups in sequence and fit with the binding position of the stirrups, reducing the binding position error and realizing the support operation of one end of the main reinforcement. It is only necessary to tie the other end of the main reinforcement with a stirrup at the end of the steel cage to form a two-point support for the main reinforcement. There is no need for multiple people to work together to set up the main reinforcement for tying operations. One person can tie the remaining stirrups and main reinforcement in turn.

[0032] In summary, the support roller 2 is used to support multiple stirrups to maintain the same binding level, and the stirrups are limited by the clamping plate 62. The support position of the main reinforcement limiter is adjusted according to the main reinforcement binding position requirements. There is no need for multiple people to work together to set up the main reinforcement for binding operations. A single person can bind the remaining stirrups and the main reinforcement in turn. The above steps are repeated continuously to bind the remaining number of main reinforcements in turn, thereby improving the binding efficiency and reducing the number of workers involved.

[0033] In this embodiment, if Figure 1 As shown, a support plate 11 for rotatably supporting the support roller 2 is fixedly provided on the platform frame 1 , and an arc-shaped notch is provided on the upper end surface of the support plate 11 for rotatably fitting with the outer wall of the support plate 11 to enhance the supporting strength of the support roller 2 .

[0034] Further, such as Fig.12As shown, a plurality of adjustment seats 22 are fixed to one end of the upper end of the platform frame 1 away from the limit plate 3. One end of the support roller 2 is rotatably fitted with the side wall of the limit plate 3, and the other end is fixed with a pin shaft 21 rotatably plugged with the side wall of the adjustment seat 22. The adjustment seat 22 is provided with an adjustment slide hole, and a pull-out block 23 with a T-shaped structure is slidably plugged into the adjustment slide hole. One end of the pull-out block 23 is fixed to a limit head 3 24 in the adjustment slide hole, and a rectangular groove plugged into the limit head 3 24 is provided at the end of the pin shaft 21. The other end of the pull-out block 23 is located outside the adjustment seat 22 and is fixed with a pull ring 25. When it is necessary to bundle the steel cage with a circular structure, the stirrups are of a circular structure, so the following method is used. Figure 1 The two support rollers 2 shown are used as support members for supporting the rolling steel cage bundling. When the main reinforcement binding position needs to be changed, the support rollers 2 need to be rotated to drive the stirrups to rotate so as to change the main reinforcement binding position. At this time, the pull ring 25 can be pulled by one hand, and the pull block 23 can be pulled along the adjusting slider of the adjusting seat 22 to pull the limit head 24 out of the rectangular groove of the pin shaft 21. The support rollers 2 lose their constraints, and the stirrups can be rolled manually. The support rollers 2 that can rotate freely can be used to cooperate with the rotation to change the stirrup position, thereby facilitating the binding operation of the main reinforcement.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The prefabricated steel cage binding formwork for structural columns is characterized by: include: A platform frame (1), wherein a plurality of supporting rollers (2) arranged in parallel with each other are provided at the upper end of the platform frame (1), wherein the supporting rollers (2) are used to support a plurality of stirrups to maintain the same binding horizontal plane; A limiting plate (3) is vertically fixed at one end of the platform frame (1), the limiting plate (3) is provided with an annular adjustment hole, a main reinforcement limiting piece is adjustably provided in the annular adjustment hole, and the main reinforcement limiting piece is used for main reinforcement guide support; The main reinforcement limiting member comprises an adjusting beam (4) adjustably arranged on the annular adjusting hole, the adjusting beam (4) is provided with a guide plug hole penetrating through the side walls on both sides, a sliding hole is provided on one side wall of the adjusting beam (4) facing the inner wall of the annular adjusting hole, a door-shaped handle (41) extending into the guide plug hole is slidably inserted in the sliding hole, and two ends of the door-shaped handle (41) are rotatably inserted into the limiting wheels (43); A gap is left between the two limiting wheels (43) for the main reinforcement to pass through; The two limiting wheels (43) are adjustable in position in the guide insertion hole, and the two limiting wheels (43) are synchronously adjustable at any position in the annular adjustment hole, thereby adjusting the position of the main reinforcement insertion.

2. The prefabricated steel cage binding formwork for structural columns according to claim 1 is characterized in that: The adjusting beam (4) is provided with a rotation notch at both axial ends, and the rotation notch is rotatably clamped on the radial side wall of the annular adjusting ring; A threaded sleeve (44) is fixed to a side wall at one end of the adjusting beam (4), and a limiting hole communicating with the threaded sleeve (44) is opened at the end of the adjusting beam (4), a limiting handle (42) is inserted into the inner thread of the threaded sleeve (44), and a limiting head (46) capable of passing through the limiting hole is provided at the end of the limiting handle (42), and a limiting groove (31) located at the edge of the annular adjusting ring is provided on the side wall of the limiting plate (3), and the end of the limiting head (46) is clamped with the limiting groove (31) at the corresponding position.

3. The prefabricated steel cage binding formwork for structural columns according to claim 2 is characterized in that: A second limiting groove (45) is provided on the side wall of the guide socket facing the sliding hole, and a second limiting head (47) plugged into the corresponding second limiting groove (45) is fixed to the side walls of the two ends of the door-shaped handle (41), and a through hole is axially provided on the limiting wheel (43), and a disk (49) located in the through hole is slidably sleeved on the outer walls of the two ends of the door-shaped handle (41), and a spring (410) and a second disk (48) located in the through hole are sleeved on the outer wall of the second limiting head (47), and the spring (410) is located between the first disk (49) and the second disk (48), and the second disk (48) is fixedly sleeved with the second limiting head (47); The elastic force of the spring (410) pushes the second disk (48) in real time, thereby passing the limiting head through the through hole and inserting it into the second limiting groove (45).

4. The prefabricated steel cage binding formwork for structural columns according to claim 1 is characterized in that: A support plate (11) for rotatably supporting the support roller (2) is also fixedly provided on the platform frame (1), and an arc-shaped notch is provided on the upper end surface of the support plate (11) for rotatably fitting with the outer wall of the support plate (11).

5. The prefabricated steel cage binding formwork for structural columns according to claim 4 is characterized in that: A plurality of adjustment seats (22) are fixed to one end of the upper end of the platform frame (1) away from the limit plate (3); one end of the support roller (2) is rotatably fitted to the side wall of the limit plate (3); and the other end is fixed to a pin shaft (21) rotatably plugged into the side wall of the adjustment seat (22).

6. The prefabricated steel cage binding formwork for structural columns according to claim 5 is characterized in that: The adjustment seat (22) is provided with an adjustment sliding hole, a T-shaped pull-out block (23) is slidably inserted in the adjustment sliding hole, one end of the pull-out block (23) is fixedly located at a limit head three (24) in the adjustment sliding hole, and the end of the pin shaft (21) is provided with a rectangular groove inserted into the limit head three (24).

7. The prefabricated steel cage binding formwork for structural columns according to any one of claims 1 to 6, characterized in that: The platform frame (1) has main shafts (5) rotatably disposed on both sides thereof, connecting rods (51) are fixed to both axial ends of the main shaft (5), a cross bar (52) is rotatably disposed between the ends of the two connecting rods (51), and a plurality of adjustment rods (53) are disposed between the main shaft (5) and the cross bar (52); Both ends of the adjusting rod (53) are fixed with ferrules (54) respectively sleeved with the main shaft (5) and the cross bar (52), and the ferrules (54) are slidably sleeved with the main shaft (5); Two hinged rods (56) are hingedly connected between the side walls of two adjacent adjustment rods (53); Two hinged rods (56) are also hingedly connected between a connecting rod (51) close to the limiting plate (3) and a side wall of the nearest adjusting rod (53); The two hinged rods (56) are distributed in an X-shaped structure and are hinged at the intersection position.

8. The prefabricated steel cage binding formwork for structural columns according to claim 7 is characterized in that: One of the ferrules (54) at the end of an adjustment rod (53) away from the limiting plate (3) is threadedly connected to the cross bar (52), and one end of the cross bar (52) away from the limiting plate (3) is rotated through the connecting rod (51) and then connected to the adjustment dial (55).

9. The prefabricated steel cage binding formwork for structural columns according to claim 7, characterized in that: It also includes stirrup centralizers, and the stirrup centralizers on both sides are used to limit multiple stirrups at the same time; The stirrup straightener comprises a sliding clamp (6) adjustably arranged on the outer wall of the adjusting rod (53), a support block (61) fixed on the sliding clamp (6), and a clamping plate (62) hinged on both sides of the end of the support block (61), a torsion spring is provided at the hinge between the clamping plate (62) and the support block (61), and the torsion force of the torsion spring flips the clamping plate (62) around the hinge position to the side close to each other to form a V-shaped structure, and the clamping plate (62) is provided with a clamping notch for clamping the side wall of the stirrup edge.

10. The prefabricated steel cage binding formwork for structural columns according to claim 9, characterized in that: The radial side wall of the adjusting rod (53) is provided with an adjusting groove (531) having an arc-shaped cross section, and the sliding seat (6) is provided with a protrusion (63) slidably engaged with the adjusting groove (531), and the protrusion (63) is tightly fitted with the inner wall of the adjusting groove (531).

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