Steel bar positioning device

Abstract

The invention discloses a steel bar positioning device which comprises a positioning frame used for clamping a vertical connecting steel bar, the positioning frame is supported on the top of a high leaf plate and the top of a low leaf plate through positioning supports, the positioning supports comprise the first positioning support and the second positioning support, the first positioning support can clamp the top of the high leaf plate, and the second positioning support can clamp the top of the low leaf plate. The second positioning support is located at the top end of the low leaf plate and used for supporting the positioning frame so that the positioning frame where the vertical connecting steel bars are positioned can be in a simply-supported constraint state. Thus, a simple support constraint system formed by combining the first positioning support and the second positioning support is adopted, precision control and maintenance of the vertical connecting steel bars in all links of assembly construction can be guaranteed to the maximum extent, the supporting position of the second positioning support is not affected by a prefabricated floor, in-place dismounting is convenient, the supporting height is adjustable, and the construction efficiency is improved. The device can adapt to the situation that the inner and outer leaf plates of the laminated slab have any height difference.

Description

Technical Field

[0001] The invention relates to the technical field of assembled building structure construction, and in particular to a steel bar positioning device. Background Art

[0002] Compared with the structural system of traditional construction methods, prefabricated building structures can effectively shorten the construction period, reduce engineering waste and energy consumption, and reduce pollution and damage to the environment. Therefore, the residential system built by prefabrication has good application and development prospects, and its "green building" evaluation has been widely recognized at home and abroad. With the rapid development of urbanization in my country and the rising labor costs, prefabricated shear wall structures have been widely studied and applied in high-rise residential buildings. Among them, the composite slab shear wall structure is an assembled integral structure formed by the superposition of prefabricated reinforced concrete components and cast-in-place concrete. One of the key technologies of this structural system is the vertical connection method of prefabricated shear walls. The Anhui Provincial Local Standard "Technical Code for Composite Slab Concrete Shear Wall Structure" (DB34 / T810-2022) and its supporting atlas "Atlas of Node Construction of Composite Slab Concrete Shear Wall Structure" (Anhui 2023GZ312) propose a superposition scheme of vertical connection steel bars and post-cast concrete in the cavity of the composite wall panel, which can effectively ensure that the bearing capacity performance of the horizontal joint meets the design requirements. The regulations and drawings clearly stipulate the protective layer thickness and upper and lower anchorage lengths of the vertical connecting steel bars, but do not give specific positioning methods and corresponding instructions. Therefore, in specific construction applications, it is found that there is no specific method or technical solution that can effectively solve the construction positioning of the vertical connecting steel bars, especially in the application scenarios of composite wall panels when there is a height difference in the blades, such as the exterior wall or the side wall of the opening. The positioning of the vertical connecting steel bars needs to consider the verticality, anchorage length and distance control from the inner and outer blades and prefabricated floor slabs during the construction process. The existing construction technical solutions are very likely to cause problems such as skew, displacement, sinking, etc., and the steel bar positioning cannot be carried out in batches, resulting in low construction efficiency.

[0003] In the prior art, the invention patent authorization specification CN201811582253.9 discloses a prefabricated shear wall vertical reinforcement positioning device, including an elevation clamp, a positioning angle steel, a positioning steel sleeve, a tightening piece, and a reinforcement protection tube. The elevation clamp is composed of two semicircular hoops, one of which is provided with a protruding limit block, the positioning angle steel is provided with ribs, reinforcement positioning grooves and tightening holes, and the other side is provided with equally spaced fixing holes; the positioning steel sleeve is provided with vertical reinforcement positioning holes, and fixing grooves connected to the positioning angle steel fixing holes are provided on both sides along the wall direction. Casting ports are provided in the middle and both ends of the steel sleeve to facilitate concrete pouring, and centrally symmetrical wing plates and pressure plates are provided at both ends; a limit thrust bearing is provided at the near handle end of the tightening piece, and a tightening nut is provided at the far handle end; the reinforcement protection tube is a PVC pipeline closed at one end.

[0004] The utility model patent authorization specification CN 202320789089.9 discloses a high-turnover assembled transfer layer prefabricated wall steel bar positioning device, which relates to the field of building structure construction technology, including a support frame, which is placed on the formed wall, and a positioning support rod is installed inside the support frame. The two ends of the positioning support rod are connected to the two ends of the support frame, and the position of the positioning support rod in the support frame can be adjusted. A plurality of steel bar locators are installed on the positioning support rod, and the position of the steel bar locators on the positioning support rod can be adjusted. The interior of the steel bar locator is provided with a socket for the steel bar to pass through and position the steel bar.

[0005] The utility model patent authorization specification CN 201721244896.3 discloses a shear wall vertical steel bar positioning device, which is arranged on a steel bar frame composed of vertical steel bars and transverse steel bars, and includes two parallel positioning bars, and the positioning bars are evenly provided with positioning holes along the length direction thereof, and the vertical steel bars are inserted through the positioning holes, and an adjustment rod is inserted between the two positioning bars, and the adjustment rod is arranged horizontally, and a locking device is arranged on the adjustment rod. First, a row of vertical steel bars is inserted into the positioning hole of a positioning bar, and then the adjustment rod is inserted between the two positioning bars, and the spacing between the two positioning bars is adjusted according to the construction requirements. After the spacing is determined, another row of vertical steel bars is inserted into the positioning hole of another positioning bar, and the locking operation of the limit bar is completed under the action of the locking device.

[0006] The utility model patent authorization specification CN202020519804.3 discloses an assembled prefabricated wall embedded steel bar positioning device, which is used to position multiple embedded steel bars arranged on the prefabricated wall. The positioning device includes a U-shaped channel steel and round steel type clips and steel plate type clips for positioning and adjusting the embedded steel bars. The back plate of the channel steel is provided with slots arranged along the length direction of the channel steel. The round steel type clips and steel plate type clips can be slidably adjusted and fixed on the slots.

[0007] In view of the problem of construction positioning of vertical connecting steel bars of composite wall panels when there is a height difference in the leaf plates, the above-mentioned existing technical solutions have the following defects: (1) The positioning device in the form of a fastening clamp combination frame used in the existing technology can only be applied to the horizontal plane, but cannot be applied to the offset plane with a height difference, and the positioning space does not take into account the influence of the prefabricated panels in the composite floor slab, making it difficult to dismantle the device; (2) The existing positioning devices all use positioning holes with fixed spacing to clamp the steel bar positions, and the spacing of the steel bars is determined by the design and is a variable, which is theoretically arbitrary. This greatly limits the versatility of the positioning device, and thus makes it difficult to effectively reduce the cost of construction measures; (3) The existing technical positioning devices are mainly aimed at cast-in-place concrete shear wall structures or prefabricated shear wall structures connected by steel sleeve grouting. The construction accuracy is controlled as a single mode in the cast-in-place or prefabricated scenario, while the assembly construction of the composite slab shear wall needs to consider the relative position relationship between the vertical connecting steel bars and the prefabricated blades and the post-cast cavities. The construction accuracy is controlled as a mixed mode in the composite scenario of prefabrication and post-casting. The accuracy adaptation control of each link of the assembly construction is a key issue. The positioning devices of the prior art are usually placed on the supporting surface without effective strengthening and fixing measures, are easily affected by construction interference, and cannot ensure that the construction error meets the accuracy requirements.

[0008] Therefore, how to solve the problem that the existing steel bar positioning device can only be applied to horizontal planes but not to offset planes with height differences, and the positioning space does not take into account the influence of prefabricated panels in composite floor slabs, and the device is difficult to dismantle, has become an important technical problem that technical personnel in this field need to solve. Summary of the invention

[0009] In order to solve the technical problems existing in the background technology, the present invention provides a steel bar positioning device.

[0010] The present invention proposes a steel bar positioning device, including a positioning frame for clamping vertical connecting steel bars, wherein the positioning frame is supported on the top of the high blade and the low blade through positioning supports, and the positioning supports include a first positioning support and a second positioning support, wherein the first positioning support can clamp the top of the high blade, and the second positioning support is located at the top of the low blade and is used to support the positioning frame so that the positioning frame with the vertical connecting steel bars positioned is in a simply supported constraint state.

[0011] Preferably, the positioning frame includes:

[0012] A positioning clamp assembly, the positioning clamp assembly comprising positioning clamps I and positioning clamps II, the positioning clamp I being arranged near the top of the high blade, comprising a first positioning clamp and a second positioning clamp arranged in parallel and opposite to each other, the positioning clamp II being arranged near the top of the low blade, comprising a third positioning clamp and a fourth positioning clamp arranged in parallel and opposite to each other, the first positioning clamp and the second positioning clamp, and the third positioning clamp and the fourth positioning clamp are respectively used to clamp corresponding vertical connecting steel bars;

[0013] The adjustable cross brace assembly is provided with a plurality of adjustable working lengths, is vertically connected to the positioning clamp bar assembly 1, is connected to the positioning clamp bar I at one end, and is connected to the positioning clamp bar II at the other end;

[0014] Among them, the working length of the adjustable cross brace assembly is determined by the spacing value of the vertical connecting steel bars along the transverse wall direction described in the design document.

[0015] Preferably, the positioning frame also includes auxiliary positioning strips, which include a first auxiliary positioning strip for magnetically positioning the vertical connecting steel bars and a second auxiliary positioning strip for extrusion positioning the vertical connecting steel bars. The first auxiliary positioning strip adopts a rubber magnetic strip without adhesive backing, which is magnetically attracted to the inner vertical surfaces of the middle sections of the first positioning clamp and the third positioning clamp, respectively. The second auxiliary positioning strip adopts a single-sided rubber strip with adhesive backing, and the adhesive surface of the single-sided rubber strip is respectively bonded to the outer vertical surfaces of the second positioning clamp and the fourth positioning clamp.

[0016] Preferably, the adjustable cross brace assembly includes a first screw, a first deformation memory spring and two first nuts respectively threadedly connected to the two end portions of the first screw, the first deformation memory spring is located between the second positioning clamp and the fourth positioning clamp and against their inner vertical surfaces, the two first nuts are respectively located on the outer vertical surfaces of the first positioning clamp and the third positioning clamp, the first deformation memory spring is squeezed by tightening the two first nuts, and the extrusion force required for positioning the vertical connecting steel bars is provided, and the distance between the first nuts at both ends is determined by the working length of the adjustable cross brace assembly.

[0017] Preferably, the first positioning support forms a fixed hinge support, including a second screw, a second deformation memory spring, a second nut, a third nut, a fourth nut, a first clamp and a second clamp, the first clamp is located on the outer side of the top of the high leaf plate, the second clamp passes through the reserved long hole on the first positioning clamp strip and is located on the inner side of the top of the high leaf plate, the second deformation memory spring is located at the top between the first clamp and the second clamp, and the second deformation memory spring is squeezed by tightening the second nut and the third nut so that the first clamp and the second clamp clamp the high leaf plate to form the fixed hinge support, and the positioning frame is connected to the fixed hinge support by tightening the second nut and the fourth nut.

[0018] Preferably, the second positioning support forms a movable hinge support, including a third screw and a fifth nut. The third screw adopts a hexagonal head bolt. The hexagonal head end of the third screw is supported downward on the top of the lower blade to form a movable hinge support, and the threaded end is passed upward through a reserved circular hole on the third positioning clamp. The fifth nut is located directly below the reserved circular hole to support and connect the positioning frame containing the third positioning clamp.

[0019] Preferably, the positioning clamp bar assembly adopts equal-leg angle steel or unequal-leg angle steel. When equal-leg angle steel is adopted, the first positioning clamp bar, the second positioning clamp bar, the third positioning clamp bar and the fourth positioning clamp bar are all set to the same specifications; when unequal-leg angle steel is adopted, the first positioning clamp bar and the third positioning clamp bar are of the same specifications, and the second positioning clamp bar and the fourth positioning clamp bar are of the same specifications.

[0020] Preferably, the first clamp is made of channel steel or angle steel.

[0021] Preferably, the number of the adjustable cross brace assemblies is 2-6, and the 2-6 adjustable cross brace assemblies are arranged and distributed at intervals along the length direction of the positioning clip strip assembly.

[0022] In summary, the present invention has the following beneficial effects: the simply supported constraint system composed of the first positioning support and the second positioning support can maximize the precision control and maintenance of the vertical connecting steel bars in each link of the assembly construction, and the supporting position of the second positioning support is not affected by the prefabricated floor slab, which is convenient for on-site dismantling, and the supporting height is adjustable, which can adapt to the situation where the inner and outer blades of the composite plate have arbitrary height differences.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional top view schematic diagram of an embodiment of the present invention;

[0025] Figure 2 It is a front schematic diagram of an embodiment of the present invention;

[0026] Figure 3 It is a schematic diagram of the back side of an embodiment of the present invention;

[0027] Figure 4 It is a top view schematic diagram of a positioning clamp assembly in an embodiment of the present invention;

[0028] Figure 5 It is a top view schematic diagram of the first positioning support in the embodiment of the present invention;

[0029] Figure 6 for Figure 1 Schematic diagram of section A;

[0030] Figure 7 for Figure 1 Middle B section schematic diagram;

[0031] Figure 8 for Figure 6 Middle C is a partial enlarged schematic diagram;

[0032] Fig. 9 for Figure 7 Middle D is a partial enlarged schematic diagram.

[0033] In the figure:

[0034] 1-positioning clamp assembly, 1.1-first positioning clamp, 1.11-reserved long hole, 1.2-second positioning clamp, 1.3-third positioning clamp, 1.31-reserved round hole, 1.4-fourth positioning clamp;

[0035] 2- auxiliary positioning strip, 2.1- first auxiliary positioning strip, 2.2- second auxiliary positioning strip;

[0036] 3-adjustable cross brace assembly, 3.1-first screw rod, 3.2-first deformation memory spring, 3.3-first nut;

[0037] 4-positioning support, 4.1-first positioning support, 4.11-second screw, 4.12-second deformation memory spring, 4.13-second nut, 4.14-third nut, 4.15-fourth nut, 4.16-first clamp, 4.17-second clamp, 4.2-second positioning support, 4.21-third screw, 4.22-fifth nut;

[0038] 5-Vertical connecting steel bars;

[0039] 6.1-high blade, 6.2-low blade. DETAILED DESCRIPTION

[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] like Figure 1-9 As shown, a steel bar positioning device proposed in this embodiment includes a positioning frame for clamping the vertical connecting steel bars 5, the positioning frame is supported on the top of the high blade 6.1 and the low blade 6.2 through the positioning support 4, the positioning support 4 includes a first positioning support 4.1 and a second positioning support 4.2, the first positioning support 4.1 can clamp the top of the high blade 6.1, the second positioning support 4.2 is located at the top of the low blade 6.2 and is used to support the positioning frame, so that the positioning frame with the vertical connecting steel bars 5 is in a simply supported constraint state.

[0042] Among them, simply supported constraint refers to the constraint state of a combination of fixed hinge supports and movable hinge supports that can be used in engineering mechanics for a rod that needs to completely restrict the degree of freedom, and the line of action of the constraint reaction force of the movable hinge support cannot pass through the center of the fixed hinge support.

[0043] Furthermore, if Figure 5 , Figure 7 and Fig. 9 As shown, the first positioning support 4.1 forms a fixed hinge support, including a second screw rod 4.11, a second deformation memory spring 4.12, a second nut 4.13, a third nut 4.14, a fourth nut 4.15, a first clamp 4.16 and a second clamp 4.17, wherein the first clamp 4.16 is made of channel steel or angle steel, the first clamp 4.16 is located on the top outer side of the high blade 6.1, and the second clamp 4.17 passes through the reserved long hole 1.11 on the first positioning clamp strip 1.1. The second deformation memory spring 4.12 is located at the top between the first clamp 4.16 and the second clamp 4.17. The second deformation memory spring 4.12 is squeezed by tightening the second nut 4.13 and the third nut 4.14, so that the first clamp 4.16 and the second clamp 4.17 clamp the high blade 6.1 to form a fixed hinge support, and the positioning frame is connected to the fixed hinge support by tightening the second nut 4.13 and the fourth nut 4.15.

[0044] The second positioning support 4.2 forms a movable hinge support, including a third screw rod 4.21 and a fifth nut 4.22. The third screw rod 4.21 adopts a hexagonal head bolt. The hexagonal head end of the third screw rod 4.21 is supported downward on the top of the low blade 6.2 to form a movable hinge support, and the threaded end is passed upward through the reserved circular hole 1.31 on the third positioning clamp strip 1.3. The fifth nut 4.22 is located directly below the reserved circular hole 1.31 to support and connect the positioning frame including the third positioning clamp strip 1.3.

[0045] The simply supported constraint system composed of fixed hinge supports (which can only rotate) and movable hinge supports (which can rotate and move horizontally but not move up and down) can maximize the precision control and maintenance of the vertical connecting steel bars in each link of the assembly construction. The supporting position of the movable hinge support is not affected by the prefabricated floor slab, and it is easy to dismantle in place. The supporting height is adjustable and can adapt to the situation where the inner and outer blades of the composite slab have arbitrary height differences. This maximizes the precision control and maintenance of the vertical connecting steel bars in the assembly construction links such as the lifting of prefabricated components, installation of other steel bars, installation of reserved embedded parts, assembly of formwork, pouring and vibrating of concrete.

[0046] In this way, the simply supported constraint system composed of the first positioning support and the second positioning support can maximize the precision control and maintenance of the vertical connecting steel bars in each link of the assembly construction. The supporting position of the second positioning support is not affected by the prefabricated floor slab, and it is easy to dismantle on site. The supporting height is adjustable and can adapt to the situation where the inner and outer blades of the composite slab have arbitrary height differences.

[0047] Furthermore, the positioning frame includes:

[0048] A positioning clamp assembly 1, the positioning clamp assembly 1 includes a positioning clamp I and a positioning clamp II, the positioning clamp I is arranged near the top of the high blade 6.1, and includes a first positioning clamp 1.1 and a second positioning clamp 1.2 arranged in parallel and opposite to each other, and the positioning clamp II is arranged near the top of the low blade 6.2, and includes a third positioning clamp 1.3 and a fourth positioning clamp 1.4 arranged in parallel and opposite to each other, and the first positioning clamp 1.1 and the second positioning clamp 1.2, and the third positioning clamp 1.3 and the fourth positioning clamp 1.4 are respectively used to clamp the corresponding vertical connecting steel bars 5;

[0049] Specifically, the positioning clamp assembly 1 adopts unequal angle steel or unequal angle steel. When equal angle steel is adopted, the first positioning clamp 1.1, the second positioning clamp 1.2, the third positioning clamp 1.3 and the fourth positioning clamp 1.4 are all set to the same specifications; when unequal angle steel is adopted, the first positioning clamp 1.1 and the third positioning clamp 1.3 are of the same specification, the second positioning clamp 1.2 and the fourth positioning clamp 1.4 are of the same specification, and the two specifications are equal in height of the vertical sides when assembled.

[0050] The adjustable cross brace assembly 3 is provided with multiple ones, and its working length is adjustable. It is vertically connected to the positioning clamp bar assembly 1, one end is connected to the positioning clamp bar I, and the other end is connected to the positioning clamp bar II; on the one hand, the adjustable cross brace assembly 3 controls the lateral spacing and protective layer thickness of the two rows of vertical connecting steel bars to meet the design requirements, and on the other hand, provides extrusion force for the second auxiliary positioning bar 2.2.

[0051] In this embodiment, the adjustable cross brace assembly 3, the positioning clamp strip assembly 1 and the auxiliary positioning strip 2 are combined to form a positioning frame. The working length of the adjustable cross brace assembly 3 is determined by the spacing value of the vertical connecting steel bars 5 along the transverse wall direction in the design document. Each set of positioning devices requires 2-6 adjustable cross brace assemblies 3, and the 2-6 adjustable cross brace assemblies 3 are arranged and distributed at intervals along the length direction of the positioning clamp strip assembly 1. The specific number and position are determined according to the length of the composite wall panel. When the length of the composite wall panel is within 2m, 2 braces are used and set at the quarter points at both ends of the composite wall panel. When the length of the composite wall panel is 2-5m, 4 braces are used, and the setting positions include the quarter points at both ends of the composite wall panel and the wall extension sections at both ends. When it exceeds 5m, 6 braces are used, and the setting positions include 2 braces from both ends to the three-point range of the composite wall panel and 1 brace from both ends of the wall extension sections.

[0052] Furthermore, if Figure 8 As shown, the adjustable cross brace assembly 3 includes a first screw rod 3.1, a first deformation memory spring 3.2 and two first nuts 3.3 respectively threadedly connected to the two end portions of the first screw rod, the first deformation memory spring 3.2 is located between the second positioning clamp strip 1.2 and the fourth positioning clamp strip 1.4 and against the inner vertical surfaces thereof, the two first nuts 3.3 are respectively located on the outer vertical surfaces of the first positioning clamp strip 1.1 and the third positioning clamp strip 1.3, the first deformation memory spring 3.2 is squeezed by tightening the two first nuts 3.3, and the extrusion force required for positioning is provided to the vertical connecting steel bars 5, and the distance between the first nuts 3.3 at both ends is determined by the working length of the adjustable cross brace assembly 3.

[0053] In this embodiment, Figure 1 As shown, the positioning frame also includes an auxiliary positioning strip 2, and the auxiliary positioning strip 2 includes a first auxiliary positioning strip 2.1 for magnetically positioning the vertical connecting steel bars 5 and a second auxiliary positioning strip 2.2 for extrusion positioning the vertical connecting steel bars 5, which can realize the positioning of the vertical connecting steel bars at any spacing; wherein, the first auxiliary positioning strip 2.1 adopts a rubber magnetic strip without adhesive backing, which is magnetically attracted to the inner vertical surfaces of the middle sections of the first positioning clamp strip 1.1 and the third positioning clamp strip 1.3 respectively, and the second auxiliary positioning strip 2.2 adopts a single-sided adhesive rubber strip, and the adhesive surface of the single-sided adhesive rubber strip is respectively bonded to the outer vertical surfaces of the second positioning clamp strip 1.2 and the fourth positioning clamp strip 1.4.

[0054] It should be noted that the length of the rubber magnetic strip without adhesive backing shall not exceed the length of the middle section. The middle section is the middle section without screw holes, and its length shall not be less than 1 / 3 of the length of the composite wall panel.

[0055] In summary, the steel bar positioning device in this embodiment is composed of a positioning clamp bar assembly 1, an auxiliary positioning bar 2, and an adjustable cross brace assembly 3 to form a positioning frame for the vertical connecting steel bars 5, and then the positioning support 4 supports the positioning frame containing the vertical connecting steel bars 5 in a simply supported constraint form on the top of the leaf plate with a height difference. The auxiliary positioning strips 2 include a first auxiliary positioning strip 2.1 for magnetically positioning the vertical connecting steel bars 5 and a second auxiliary positioning strip 2.2 for squeezing the vertical connecting steel bars 5, which can realize the positioning of the vertical connecting steel bars 5 at any spacing; the adjustable cross brace assembly 3 controls the lateral spacing and protective layer thickness of the two rows of vertical connecting steel bars to meet the design requirements on the one hand, and provides squeezing force for the second auxiliary positioning strip 2.2 on the other hand; the positioning support 4 includes a first positioning support 4.1 that clamps the high blade 6.1 and acts as a fixed hinge support and a second positioning support 4.2 that is supported on the low blade 6.2 and acts as a movable hinge support, so that the positioning frame containing the vertical connecting steel bars 5 is in a simply supported constraint state, and the movement trajectory of the second positioning support 4.2 in place and removal is not affected by the prefabricated floor slab, and the support height is adjustable, which maximizes the guarantee of the precision control and maintenance of the vertical connecting steel bars in the assembly construction links such as the hoisting of prefabricated components, installation of other steel bars, installation of reserved embedded parts, assembly of formwork, pouring and vibrating of concrete.

[0056] Thus, the steel bar positioning device in this embodiment has the technical advantages of simple structure, clear mechanism, simple construction, stable performance, strong adaptability, etc. The extruded auxiliary positioning strip is used to directly position the vertical connecting steel bars 5 of any spacing, which has strong versatility and can significantly reduce the construction cost of steel bar positioning; the composite wall panels with height difference of the blades are usually located at the edge of the building, and the vertical connecting steel bars 5 can be clamped and fixed in batches on the ground and then hoisted to the installation and positioning operation surface, which reduces the high-altitude edge operation and significantly improves the construction efficiency; and the gap in the middle of the positioning frame is large enough, and the vertical connecting steel bars 5 will not affect the pouring and vibration of the concrete in the belly of the composite wall panel after installation and positioning; the simple support constraint system composed of fixed hinge supports and movable hinge supports can maximize the precision control and maintenance of the vertical connecting steel bars in each link of the assembly construction, and the supporting position of the movable hinge support is not affected by the prefabricated floor slab, which is convenient to remove in place, and the supporting height is adjustable, which can adapt to the situation where the inner and outer blades of the composite plate have any height difference.

[0057] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel bar positioning device, characterized in that: The invention comprises a positioning frame for clamping the vertical connecting steel bars (5), the positioning frame being supported on the top of the high blade (6.1) and the low blade (6.2) through positioning supports (4), the positioning supports (4) comprising a first positioning support (4.1) and a second positioning support (4.2), the first positioning support (4.1) being capable of clamping the top of the high blade (6.1), the second positioning support (4.2) being located at the top of the low blade (6.2) and being used to support the positioning frame, so that the positioning frame with the vertical connecting steel bars (5) positioned thereon is in a simply supported constraint state.

2. The steel bar positioning device according to claim 1, characterized in that: The positioning frame includes: A positioning clamp bar assembly (1), the positioning clamp bar assembly (1) comprising a positioning clamp bar I and a positioning clamp bar II, the positioning clamp bar I being arranged near the top of the high blade (6.1) and comprising a first positioning clamp bar (1.1) and a second positioning clamp bar (1.2) arranged in parallel and opposite to each other, the positioning clamp bar II being arranged near the top of the low blade (6.2) and comprising a third positioning clamp bar (1.3) and a fourth positioning clamp bar (1.4) arranged in parallel and opposite to each other, the first positioning clamp bar (1.1) and the second positioning clamp bar (1.2) and the third positioning clamp bar (1.3) and the fourth positioning clamp bar (1.4) being respectively used for clamping corresponding vertical connecting steel bars (5); An adjustable cross brace assembly (3), which is provided with a plurality of cross brace assemblies and has an adjustable working length, is vertically connected to the positioning clamp bar assembly (1), has one end connected to the positioning clamp bar I, and has the other end connected to the positioning clamp bar II; The working length of the adjustable cross brace assembly (3) is determined by the spacing value of the vertical connecting steel bars (5) along the transverse wall direction in the design document.

3. The steel bar positioning device according to claim 2, characterized in that: The positioning frame also includes auxiliary positioning strips (2), the auxiliary positioning strips (2) including a first auxiliary positioning strip (2.1) for magnetically positioning the vertical connecting steel bars (5) and a second auxiliary positioning strip (2.2) for extrusion positioning the vertical connecting steel bars (5), the first auxiliary positioning strip (2.1) using a rubber magnetic strip without adhesive backing, magnetically attracted to the inner vertical surfaces of the middle sections of the first positioning clamp strip (1.1) and the third positioning clamp strip (1.3), respectively, the second auxiliary positioning strip (2.2) using a single-sided adhesive rubber strip, the adhesive surface of the single-sided adhesive rubber strip being respectively bonded to the outer vertical surfaces of the second positioning clamp strip (1.2) and the fourth positioning clamp strip (1.4).

4. The steel bar positioning device according to claim 2, characterized in that: The adjustable cross brace assembly (3) comprises a first screw rod (3.1), a first deformation memory spring (3.2) and two first nuts (3.3) respectively threadedly connected to the two ends of the first screw rod; the first deformation memory spring (3.2) is located between the second positioning clamp strip (1.2) and the fourth positioning clamp strip (1.4) and abuts against the inner vertical surfaces thereof; the two first nuts (3.3) are respectively located on the outer vertical surfaces of the first positioning clamp strip (1.1) and the third positioning clamp strip (1.3); by tightening the two first nuts (3.3), the first deformation memory spring (3.2) is squeezed, thereby providing the squeezing force required for positioning the vertical connecting steel bar (5); the distance between the first nuts (3.3) at both ends is determined by the working length of the adjustable cross brace assembly (3).

5. The steel bar positioning device according to claim 1, characterized in that: The first positioning support (4.1) forms a fixed hinge support, comprising a second screw rod (4.11), a second deformation memory spring (4.12), a second nut (4.13), a third nut (4.14), a fourth nut (4.15), a first clamp (4.16) and a second clamp (4.17), wherein the first clamp (4.16) is located on the outer side of the top of the high leaf plate (6.1), and the second clamp (4.17) passes through the reserved long hole (1.11) on the first positioning clamp strip (1.1) and is located on the inner side of the top of the high leaf plate (6.1). The second deformation memory spring (4.12) is located at the top between the first clamp (4.16) and the second clamp (4.17). The second deformation memory spring (4.12) is squeezed by tightening the second nut (4.13) and the third nut (4.14), so that the first clamp (4.16) and the second clamp (4.17) clamp the high leaf plate (6.1) to form the fixed hinge support. The positioning frame is connected to the fixed hinge support by tightening the second nut (4.13) and the fourth nut (4.15).

6. The steel bar positioning device according to claim 5, characterized in that: The second positioning support (4.2) forms a movable hinge support, including a third screw rod (4.21) and a fifth nut (4.22); the third screw rod (4.21) adopts a hexagonal head bolt; the hexagonal head end of the third screw rod (4.21) is supported downward on the top of the lower blade (6.2) to form a movable hinge support; the threaded end of the third screw rod (4.21) is passed upward through a reserved circular hole (1.31) on the third positioning clamp strip (1.3); the fifth nut (4.22) is located directly below the reserved circular hole (1.31) to support and connect the positioning frame including the third positioning clamp strip (1.3).

7. The steel bar positioning device according to claim 1, characterized in that: The positioning clamp bar assembly (1) is made of equal-leg angle steel or unequal-leg angle steel. When equal-leg angle steel is used, the first positioning clamp bar (1.1), the second positioning clamp bar (1.2), the third positioning clamp bar (1.3) and the fourth positioning clamp bar (1.4) are all of the same specification; when unequal-leg angle steel is used, the first positioning clamp bar (1.1) and the third positioning clamp bar (1.3) are of the same specification, and the second positioning clamp bar (1.2) and the fourth positioning clamp bar (1.4) are of the same specification.

8. The steel bar positioning device according to claim 5, characterized in that: The first clamp (4.16) is made of channel steel or angle steel.

9. The steel bar positioning device according to claim 3, characterized in that: The adjustable cross brace components (3) are provided in 2 to 6 numbers, and the 2 to 6 adjustable cross brace components (3) are arranged and distributed at intervals along the length direction of the positioning clamp strip component (1).

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