Positioning device of embedded section steel reinforcement framework and installation method of positioning device

Abstract

The invention discloses a positioning device of a pre-embedded section steel reinforcement framework and an installation method of the positioning device, and relates to the technical field of building engineering construction.The positioning device comprises a positioning assembly and a supporting piece used for maintaining the stable posture of the positioning assembly, the positioning assembly comprises an assembling frame, and two parallel positioning mechanisms are arranged in the assembling frame; the positioning mechanism comprises a fixing bracket, and the top of the fixing bracket is slidably connected with a limiting assembly used for limiting the reinforcing steel bars. The assembling frame, the splicing positioning plate, the fixing bracket and other structures are arranged, all parts are combined and assembled to form a whole, and rapid assembly and disassembly can be achieved; the on-site installation positioning mould is adopted, the on-site steel bar installation precision of workers is improved so as to be matched with the machining precision of a workshop steel bar framework, meanwhile, the on-site construction progress can be improved, and the construction requirement can be efficiently met.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering construction, in particular to a positioning device for a pre-embedded segment steel bar skeleton and an installation method thereof. Background Art

[0002] In today's construction, there are strict requirements for the thickness of the protective layer of cast-in-place structures. However, in actual construction, the pre-inserted frame column steel bars often deviate, and even exceed the size range of the post-cast reinforced concrete frame column due to serious steel bar deviation. During the concrete pouring process, due to the influence of external forces such as concrete vibration, the pre-inserted frame column steel bars often deviate. The positioning of steel bars in the concrete structure of the construction project and the accuracy of the skeleton size are related to the safety and durability of the structural components.

[0003] With the popularization of steel skeletons in construction projects, the connection between steel skeletons and embedded nodes has become a key node. Existing technologies mostly use low-cost straight thread connection, binding, welding and other technologies. However, it is difficult to ensure the welding processing accuracy by welding a large number of parts such as steel bolts on site, which often results in poor construction quality and accuracy of embedded nodes, resulting in a large amount of manpower and material resources required for adjustment and rectification when the steel skeleton is connected later. Moreover, traditional positioning plates are mostly fixed, which are not easy to dismantle and have poor adjustability. The positioning of steel skeletons of different specifications often requires re-processing, which further increases manpower consumption, is not conducive to the frequent turnover of construction sites, and reduces construction efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a positioning device for a pre-embedded segment steel bar skeleton and an installation method thereof, so as to solve the problem that the traditional positioning plate proposed in the above-mentioned background technology has poor removability and adjustability, cannot be applied to the positioning needs of steel bar skeletons of different specifications, and is not conducive to frequent turnover and utilization at the construction site.

[0005] To achieve the above object, the present invention provides the following technical solutions: A positioning device for an embedded segment steel bar skeleton comprises a positioning component and a support for maintaining the stability of the positioning component. The positioning component comprises an assembled frame. The four side walls of the assembled frame are all provided with positioning mechanisms, and the heights of the positioning mechanisms on two adjacent side walls are different. The positioning mechanism comprises a fixed bracket. The top of the fixed bracket is slidably connected to a limiting component for limiting the steel bar.

[0006] As a further solution of the present invention: the limiting assembly includes a spliced ​​positioning plate, the spliced ​​positioning plate includes two symmetrically arranged half rack plates, one side of the two half rack plates is provided with a plurality of equally spaced semicircular holes, the plurality of semicircular holes are connected in pairs to form a plurality of limiting holes, and both ends of the two half rack plates are threadedly connected with locking bolts.

[0007] As a further solution of the present invention: the limiting assembly includes a square steel tube slide rail, a plurality of positioning seats are slidably installed in the middle of the square steel tube slide rail, a spring clamp is fixedly installed on one side of several of the positioning seats, a through opening is opened in the middle of several of the positioning seats, a positioning bolt is rotatably installed on the inner wall of the through opening, and a plurality of positioning holes are opened on the square steel tube slide rail.

[0008] As a further solution of the present invention: the spring clamp includes a fixing part, one end of the fixing part is rotatably connected with a snap hook, the middle part of the fixing part is provided with a groove, the snap hook is provided with a semi-ring shape, the inner wall of the snap hook and the inner wall of the groove together form a limiting groove for limiting the steel bar; the other end of the fixing part is provided with a snap-fitting part for clamping and fixing the snap hook.

[0009] As a further solution of the present invention: a plurality of limiting protrusions are fixedly connected to the inner wall of the groove.

[0010] As a further solution of the present invention: the clamping part includes a movable cavity, one side of the inner wall of the movable cavity is rotatably connected to a movable plate, the other side of the movable cavity is slidably connected to a pressing frame, the top of the pressing frame is fixedly connected to a return spring, the top of the return spring is fixedly installed with a mounting rod, the middle part of the mounting rod is fixedly connected to a lower pressure rod, the bottom of the lower pressure rod is in tight contact with the top of the movable plate, a clamping groove is provided on one side of the pressing frame, a clamping block is fixedly connected to the side of the movable plate close to the pressing frame, the clamping groove is engaged with the clamping block, a locking tooth groove is provided on the side of the movable plate away from the pressing frame, and a locking tooth plate is fixedly connected to one side of the clamping hook, and the locking tooth groove is engaged with the locking tooth plate.

[0011] As a further solution of the present invention: both ends of the square steel tube slide rail are fixedly installed with fixing parts, the fixing parts include a base frame, the edge of the base frame is threadedly connected with fixing bolts, the top of the base frame is fixedly connected with a fixing sleeve, the inner wall of the fixing sleeve is slidably connected to the square steel tube slide rail, and the fixing sleeve is locked with the end of the square steel tube slide rail by a transverse bolt.

[0012] As a further solution of the present invention: the assembled frame includes two U-shaped frames, the end portions of the two U-shaped frames are butt-jointed with each other and together enclose a rectangular assembled frame as a whole, the butt joints of the two U-shaped frames are fixedly connected with a docking block, both sides of the top of the docking block are threadedly connected with a group of docking bolts, and the two groups of docking bolts are respectively fixedly connected to the two U-shaped frames; the side bottoms of the two U-shaped frames are fixedly connected with base angle irons.

[0013] As a further solution of the present invention: the base angle iron includes a supporting portion, the supporting portion is configured as a bar iron with an L-shaped cross-section, both ends of the inner wall of the supporting portion are fixedly connected with baffles, and the spacing between the two baffles is consistent with the side length of the assembled frame.

[0014] As a further solution of the present invention: leveling gaskets are provided on both sides of the bottom of the two base angle irons.

[0015] As a further solution of the present invention: the support member includes a plurality of support angle bars, the bottoms of a plurality of the support angle bars are bent to form bent anchor angle bars, and the bottoms of a plurality of the bent anchor angle bars are fixedly connected with support angle irons.

[0016] As a further solution of the present invention: the middle parts of a plurality of the supporting angle ribs are commonly connected to a supporting frame.

[0017] A method for installing a positioning device for a pre-embedded segment steel bar skeleton comprises the following steps: Step 1: According to actual needs, pre-process and assemble the frame, fixing bracket, leveling gasket and base angle iron according to specifications, and perform hole processing on the splicing positioning plate according to the structural section size and the number and spacing of steel bars; Step 2: Level and reinforce the ground at the pre-installed installation position of the support angle iron according to the design, and install the support angle reinforcement and the bottom support angle iron in place according to the design; pre-embed the bottom of the bent anchor angle reinforcement and the support angle iron in place in advance, and then install the foundation slab surface reinforcement; Step 3: After the steel bars of the foundation slab are installed, place leveling washers on the steel slab according to the measured positioning, and place the base angle iron on the leveling washers after checking the level; Step 4: Place the assembled frame on the upper part of the base angle iron, and fix the assembled frame into a stable whole through docking blocks and docking bolts; Step 5: Place a fixed bracket on the inner wall of the assembled frame, and fasten the fixed bracket and the assembled frame to form a whole by bolts; Step 6: Position and install the splicing positioning plate, and fasten the splicing positioning plate to the fixing bracket through locking bolts; Step 7: The steel bars in the non-corner reinforcement area pass through the limiting holes on the splicing positioning plate in turn, and then the positioning and fastening of the splicing positioning plate are reviewed to complete the installation of the positioning device.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the positioning device of the present invention, by slidingly setting the limit assembly, enables the positioning device proposed in the present application to fully consider the actual situation on site to adjust the position of the limit assembly in real time, and can achieve a specification suitable for a variety of cross-sectional sizes to achieve stable limit of steel skeleton segments with different cross-sectional sizes, thereby improving work efficiency. At the same time, compared with the method of making different positioning devices for steel skeletons with different cross-sectional sizes commonly used in the actual construction process of the construction site, the present application adopts an adjustable method to greatly reduce costs; The positioning device of the present invention is formed into a whole by assembling various parts through arranging a combination frame, a splicing positioning plate, a fixing bracket, a leveling gasket and other structures, and can realize rapid assembly and disassembly; different from the existing positioning plate technology which is biased towards workshop positioning molds or towards a single fixture positioning device on site, the present invention adopts a rotatable on-site installation positioning jig to improve the on-site steel bar installation accuracy of workers to match the machining accuracy of the workshop steel bar skeleton, and at the same time helps to improve the on-site construction progress and efficiently meet the construction requirements; The support member of the present invention adopts the method of combining leveling gaskets with supporting angle irons, and strictly controls the elevation and horizontality of the supporting angle iron parts where the bent anchor angle bars fall, so as to meet the horizontality requirement of the positioning base. Compared with the traditional positioning base construction, which requires strict leveling of the ground and measurement of elevation, or the method of constructing the base separately, the support member of the present invention only needs to control the elevation and horizontality of the supporting angle iron parts where the bent anchor angle bars fall, and the construction difficulty is lower and the speed is faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention; Figure 2 A three-dimensional diagram of the assembled frame of the present invention; Figure 3 It is a schematic diagram of the installation state of the positioning mechanism of the present invention; Figure 4 A three-dimensional diagram of a positioning assembly of the present invention; Figure 5 It is a top view of the splicing positioning plate of the present invention; Figure 6 It is a schematic diagram of dynamic changes during the installation process of the present invention; Figure 7 It is a three-dimensional diagram of a small-sized limit assembly of the present invention; Figure 8 It is a schematic diagram of the installation position of the fixing sleeve of the present invention; Fig. 9is a cross-sectional view of the spring clamp of the present invention; Fig.10 For the present invention Fig. 9 A magnified view of the local structure A; Fig.11 It is a schematic diagram of the installation state of the small-sized limit assembly of the present invention.

[0020] In the figure: 1. Positioning assembly; 101. Assembling frame; 102. Docking block; 103. Docking bolt; 104. Base angle iron; 105. Fixing bracket; 106. Slide; 107. Leveling gasket; 2. Positioning mechanism; 201. Splicing positioning plate; 202. Limiting hole; 203. Locking bolt; 301. Square steel tube slide rail; 302. Base frame; 303. Fixing bolt; 304. Positioning seat; 305. Positioning hole; 306. Spring clamp; 3061. Fixed part; 3062, snap-on hook; 307, snap-on piece; 3071, movable cavity; 3072, pressing frame; 3073, movable sheet; 3074, pressing rod; 3075, reset spring; 3076, slot; 3077, block; 3078, locking tooth sheet; 3079, locking tooth groove; 308, fixing sleeve; 309, transverse bolt; 4, supporting part; 401, supporting angle rib; 402, supporting angle iron; 403, bent anchor angle rib; 404, supporting frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe 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.

[0022] See also Figure 1 In an embodiment of the present invention, a positioning device for a pre-embedded segment steel skeleton includes a positioning component 1 and a support member 4 for maintaining a stable posture of the positioning component 1; see Figure 3 and Figure 4 The positioning component 1 includes an assembly frame 101, and the four side walls of the assembly frame 101 are all provided with positioning mechanisms 2, and the heights of the positioning mechanisms 2 on two adjacent side walls are different. In this embodiment, the four positioning mechanisms 2 are divided into two groups, and the heights of the two positioning mechanisms 2 in the same group are consistent and parallel to each other.

[0023] The positioning mechanism 2 includes a fixed bracket 105, and both sides of the top of the fixed bracket 105 are slidably connected with limiting components for limiting the position of the steel bars. The two groups of positioning mechanisms 2 are arranged up and down, and the two groups of positioning mechanisms 2 are offset by 90 degrees from each other, so that the two groups of limiting components are used to limit the steel skeleton in the horizontal and longitudinal directions respectively; due to the sliding setting of the limiting components, the positioning device proposed in the present application can fully consider the actual situation on site to adjust the position of the limiting components in real time, and can achieve stable limiting of steel skeleton segments of various cross-sectional sizes, thereby improving work efficiency; by sliding the groups of limiting components closer to each other, the internal enclosed space thereof is reduced to adapt to the limiting of the small-sized steel skeleton structure; relatively, by sliding the groups of limiting components away from each other, the internal enclosed space thereof is increased to adapt to the limiting of the large-sized steel skeleton structure; compared with the method of making different positioning devices for steel skeletons of different cross-sectional sizes commonly used in the actual construction process of the construction site, the adjustable method adopted in the present application can greatly reduce costs.

[0024] In this embodiment, the two positioning mechanisms 2 are divided into two layers, upper and lower, and are offset from each other by 90 degrees. Two limit components are longitudinally slidably connected to the fixed bracket 105 of one positioning mechanism 2, and two limit components are transversely slidably connected to the fixed bracket 105 of the other positioning mechanism 2, so as to position the steel skeleton in both the transverse and longitudinal directions.

[0025] This application provides two different limit assembly structures to cope with different usage scenarios, as follows: See also Figure 4 and Figure 5 In one embodiment, the limit assembly includes a splicing positioning plate 201, which includes two symmetrically arranged half rack plates, one side of the two half rack plates is provided with a plurality of semicircular holes arranged at equal intervals, and the plurality of semicircular holes are connected in pairs to form a plurality of limit holes 202, and both ends of the two half rack plates are threadedly connected with locking bolts 203; when in use, the middle part of the locking bolt 203 is slidably connected to the slide groove 106 on the fixed bracket 105; by sliding the two half rack plates respectively The position of the spliced ​​positioning plate 201 is adjusted by fixing it with locking bolts 203, so as to achieve stable limiting clamping of the steel skeleton at different positions; the spliced ​​positioning plate 201 is arranged in the form of a combination of two half rack plates, the purpose of which is to facilitate disassembly and separation; because in actual use, after the steel skeleton is positioned, cement pouring is required, and then the positioning device is removed. If the steel skeleton is limited by opening limiting holes 202 on the entire plate, there is a problem of difficulty in disassembly and removal.

[0026] The limit assembly structure proposed in the above embodiment is applied to a device with a size greater than or equal to 1m. 1m, the number of single-sided steel bars is greater than or equal to 10 cross-sectional dimensions, which is called a large-size limit assembly; for details, refer to the attached Figure 4 , with a size of 1.6m Take 1.6m and 16 single-sided steel bars as an example.

[0027] In another embodiment, see Figure 7 The limiting assembly includes a square steel tube slide rail 301, a plurality of positioning seats 304 are slidably installed in the middle of the square steel tube slide rail 301, a spring clamp 306 is fixedly installed on one side of the plurality of positioning seats 304, a through hole is opened in the middle of the plurality of positioning seats 304, a positioning bolt is rotatably installed on the inner wall of the through hole, and a plurality of positioning holes 305 are opened on the square steel tube slide rail 301; the positioning seat 304 is slidably assembled and arranged along the square steel tube slide rail 301, so that the number and position of the spring clamp 306 can be flexibly adjusted according to needs, and the spring clamp 306 can be stably fixed by the cooperation and locking of the positioning bolt and the positioning hole 305; when it is installed on the positioning mechanism 2, the state is as follows Fig.11 shown.

[0028] The specific structure of the spring clamp 306 can be implemented using existing technical means and only needs to satisfy the function of limiting the steel bars. The technical solution of the limiting component disclosed at this stage is different from the large-size limiting component referred to in the previous embodiment. It can be understood that it provides a limiting structure whose limiting position can be changed by sliding adjustment, so as to have better flexibility of use.

[0029] The limit assembly of this embodiment is used for 1m, the number of single-sided steel bars is less than 10 cross-sectional dimensions (hereinafter referred to as small-size limit components); the small-size limit components focus on the versatility and adjustability of the positioning device, and through the free combination of the spring clamp 306 and the square steel tube slide rail 301, high-degree-of-freedom and high-precision adjustment can be achieved.

[0030] See also Fig. 9 and Fig.10 The present embodiment provides a feasible specific structural form of the spring clamp 306 as follows: the spring clamp 306 includes a fixing portion 3061, one end of the fixing portion 3061 is rotatably connected with a snap hook 3062, a groove is provided in the middle of the fixing portion 3061, the snap hook 3062 is provided in a semi-circular shape, and the inner wall of the snap hook 3062 and the inner wall of the groove are combined to form a limiting groove for limiting the steel bar; the other end of the fixing portion 3061 is provided with a snap-fitting piece 307 for snap-fitting and fixing the snap hook 3062. When in use, the steel bar is first passed through the groove, and then the snap hook 3062 is rotated so that one end of the snap hook 3062 is inserted into the snap-fitting piece 307 to fix the snap hook 3062.

[0031] In order to improve the clamping and limiting stability of the steel bars, a plurality of limiting protrusions are fixedly connected to the inner wall of the groove, and the limiting protrusions are used to press the steel bars tightly to improve the friction between the inner wall of the groove and the steel bars.

[0032] The locking member 3076 is provided on one side of the locking member 3073, and a locking tooth groove 3079 is provided on the side of the locking member 3073 away from the locking member 3073. 078, the locking tooth groove 3079 is engaged with the locking tooth piece 3078; the specific working principle of the clamping member 307 is that when the clamping hook 3062 needs to be used, the pressing rod 3074 is pressed down to drive the movable piece 3073 to rotate, so that the clamping block 3077 is clamped into the clamping groove 3076. At this time, the movable piece 3073 is tilted to one side, and the clamping member 307 is in an open state. At this time, the clamping hook 3062 is rotated to penetrate the clamping member 307. The pressing rod 3074 is pressed again, so that the pressing frame 3072 is displaced under the action of the return spring 3075, and the slot 3076 and the block 3077 are separated and misaligned. The slot 3076 and the block 3077 are separated and misaligned, so that the pressing frame 3072 pushes out the movable sheet 3073, and uses the locking tooth groove 3079 on the movable sheet 3073 to block and engage the locking tooth sheet 3078, thereby limiting the position of the locking hook 3062.

[0033] In order to achieve the installation and fixation of the square steel tube slide rail 301, fixing parts are fixedly installed at both ends of the square steel tube slide rail 301, and the fixing parts include a base frame 302, and the edge of the base frame 302 is threadedly connected with a fixing bolt 303. When in use, the middle part of the fixing bolt 303 is slidably connected to the slide groove 106 on the fixed bracket 105 (in this embodiment, the slide groove 106 is a through groove directly opened on the top surface of the fixed bracket 105 and penetrating to the bottom surface of the fixed bracket 105, so as to reduce the processing difficulty) to achieve the need for the limiting member to slide and adjust along the fixed bracket 105 as a whole.

[0034] See also Figure 7 In order to realize the installation and fixation between the fixing member and the square steel tube slide rail 301, the top of the bottom frame 302 is fixedly connected with a fixing sleeve 308, and the inner wall of the fixing sleeve 308 is slidably connected to the square steel tube slide rail 301, please refer to Figure 8 The fixing sleeve 308 is locked with the end of the square steel tube slide rail 301 by the transverse bolt 309. Since the inner wall of the fixing sleeve 308 can slide with the square steel tube slide rail 301, the extension length of the base frame 302 can be adjusted, thereby making the length and position setting of the square steel tube slide rail 301 more flexible.

[0035] See also Figure 1 , both ends of the limit assembly are provided with support members 4 for adjusting the posture of the positioning device; the support members 4 include a plurality of supporting angle bars 401, the bottoms of the plurality of supporting angle bars 401 are bent to form bent anchor angle bars 403, and the bottoms of the plurality of bent anchor angle bars 403 are fixedly connected with supporting angle irons 402; different from the traditional positioning base construction, it is necessary to strictly level the ground, measure the elevation, or construct the base separately; the present application strictly controls the elevation and horizontality of the ground at the support angle iron 402 where the bent anchor angle bar 403 falls, so as to meet the horizontality requirement of the positioning base, and the steel bars at the non-angle bar part fall on the leveled supporting angle iron 402 to ensure the horizontality of the steel bars, and at the same time use this to transfer the elevation, so as to avoid the problems of increased construction difficulty and time loss caused by the leveling operation of the entire ground.

[0036] In order to further improve the position and posture stability of each supporting angle rib 401 , the middle parts of several supporting angle ribs 401 are commonly connected to a supporting frame 404 .

[0037] See also Figure 2 The assembled frame 101 includes two U-shaped frames, the end portions of the two U-shaped frames are butted against each other and together enclose a rectangular assembled frame 101 as a whole, a docking block 102 is fixedly connected to the butt joint of the two U-shaped frames, and a group of docking bolts 103 are threadedly connected on both sides of the top of the docking block 102, and the two groups of docking bolts 103 are respectively fixedly connected to the two U-shaped frames; the reason for the present application of obtaining the assembled frame 101 by splicing and combining two U-shaped frames instead of setting the assembled frame 101 as a whole is that it is convenient to disassemble and remove after positioning and use.

[0038] In order to improve the structural stability of the assembled frame 101, the bottom of the sides of the two U-shaped frames are fixedly connected with base angle irons 104; the base angle irons 104 include a supporting portion, which is configured as a bar iron with an L-shaped cross-section, and both ends of the inner wall of the supporting portion are fixedly connected with baffles, and the spacing between the two baffles is consistent with the side length of the assembled frame 101.

[0039] Leveling gaskets 107 are provided on both sides of the bottom of the two base angle irons 104, and the leveling gaskets 107 are provided to assist in maintaining and adjusting the horizontal structure of the positioning component 1; the present application adopts a combination of components such as an assembled frame 101, a spliced ​​positioning plate 201, a fixed bracket 105, a leveling gasket 107, and a supporting angle iron 402 to form a whole through assembly, which can be quickly assembled and disassembled, and can be recycled, thereby greatly saving costs.

[0040] The present invention provides a positioning device that can be assembled on site, which aims to improve the installation quality of embedded segment steel bars to match the processing accuracy of the steel bar skeleton, facilitate the construction of the connection area, meet the high-precision requirements of conventional straight threaded sleeves, and greatly reduce the large amount of manpower and material resources required for subsequent adjustments during subsequent connection installation.

[0041] When the present invention is used, firstly, the splicing positioning plate 201, the assembly frame 101, the fixing bracket 105, the leveling gasket 107, and the base angle iron 104 are processed according to the design drawings; wherein, except for the splicing positioning plate 201, the other components are processed to one specification, and the splicing positioning plate 201 is processed with holes according to the structural cross-sectional size and the number and spacing of the steel bars; The ground corresponding to the installation position of the support angle iron 402 is leveled and reinforced, and the bent anchor angle reinforcement 403 and the support angle iron 402 are installed in place according to the design requirements and spot welded or tied to fix; the bent anchor angle reinforcement 403 is pre-buried in place in advance and the finished product is well protected, and then the foundation (column) reinforcement and raft reinforcement are installed; After the foundation reinforcement is installed, the upper positioning component 1 structure is installed, as follows: First, a leveling washer 107 is placed on the steel plate surface according to the measured positioning, and after checking the level, a base angle iron 104 is placed on the leveling washer 107; an assembled frame 101 is placed on the base angle iron 104, and the assembled frame 101 is fixed into a stable whole by a docking block 102 and a docking bolt 103; Then, the two-layer positioning mechanism 2 is installed. First, the two fixing brackets 105 of the positioning mechanism 2 located at the lower layer are installed. The fixing brackets 105 are arranged on the two side walls of the inner wall of the assembled frame 101 away from the base angle iron 104 (i.e., the central inner wall of the U-shaped frame). Then, the limiting components are installed on the two fixing brackets 105. Then, the two fixing brackets 105 of the positioning mechanism 2 of the upper layer are installed. The fixing brackets 105 are arranged on the two side walls of the inner wall of the assembled frame 101 close to the base angle iron 104 (i.e., the inner side of the docking arms of the two U-shaped frames). Then, the limiting components are installed on the two fixing brackets 105. The installation of the two fixing brackets 105 here can further improve the connection stability of the two U-shaped frames. The assembled frame 101 and the fixing brackets 105 are fastened by bolts so that the assembled frame 101 and the fixing brackets 105 form a whole. There are two ways to install the limiter assembly: Installation of large-size limit assembly: install the splicing positioning plate 201 into the locking bolt 203, and slide the bottom of the locking bolt 203 into the slide groove 106, push and slide to adjust the position of the two half rack plates of the splicing positioning plate 201, so that the limit hole 202 composed of the upper semicircular hole can accommodate and tighten the steel bar, and then rotate the locking bolt 203 and cooperate with the nut to achieve fixation with the fixed bracket 105, so as to realize the installation of the limit assembly, repeat this step, and complete the installation of the upper limit assembly of each fixed bracket 105; Installation of small size limit components: The spring clamp 306 and the positioning seat 304 are put on the square steel tube slide rail 301 in advance to form a whole, and the base frame 302 is slidably sleeved at both ends (that is, the fixing sleeve 308 is sleeved on the end of the square steel tube slide rail 301), and the fixing bolt 303 is rotated and installed on the base frame 302, and then the fixing bolt 303 is inserted into the slide groove 106 on the fixing bracket 105, and is fixed by the fixing bolt 303 after sliding and adjusting to a suitable position; then the position of the square steel tube slide rail 301 is adjusted by sliding horizontally, and after the adjustment is completed, the transverse bolt 309 is rotated to realize the locking of the fixing sleeve 308 and the square steel tube slide rail 301, and the position and posture of the square steel tube slide rail 301 are adjusted; According to actual needs, the spacing of the spring clamps 306 is adjusted and the limit is moved, accurately positioned according to the scale on the square steel tube slide rail 301, and the limit is fixed by the positioning bolts to complete the installation of the small-size limit assembly.

[0042] The above is a method for using a single-layer positioning component 1. In actual use, you can choose to use a single-layer positioning component 1 or stack two positioning components 1 to form a double-layer positioning component 1 stacked in use according to the size of the cross-section. The structure and installation sequence of the double-layer positioning component 1 are consistent with the above process. Stacking the double-layer positioning component 1 can further improve the stability of positioning. Then, the steel bars at the non-corner reinforcement positions are inserted, and the steel bars at this position are sequentially passed through the limiting holes 202 (or limiting grooves) and fall on the ground (angle irons used for the steel bars at the non-corner reinforcement positions can also be arranged on the ground to support them), and finally the positioning and fastening of the positioning assembly 1 are reviewed; the specific installation process status diagram can be referred to Figure 6 ,exist Figure 6 In the figure, state (a) represents the initial state of the installation operation, that is, two base angle irons 104 are placed symmetrically, and then a U-shaped frame is placed on the base angle iron 104, as shown in Figure (b), and then two U-shaped frames are placed on the base angle iron 104 and fixed by the docking block 102 and the docking bolts 103, as shown in Figure (c); then the two layers of positioning mechanisms 2 are installed in turn, as shown in Figures (d) and (e) respectively; at this time, the positioning assembly 1 is installed, and then the support member 4 is installed to obtain a complete positioning device, as shown in Figure (f); After the positioning device is installed, the foundation concrete is poured; after pouring, the positioning device is removed in sequence in the order of "the later installed ones are removed first, the earlier installed ones are removed last"; the locking bolts 203 are turned to remove the spliced ​​positioning plate 201 and the fixed bracket 105, and then removed from both sides; then the fixed bracket 105 and the positioning base structure frame are removed, and the fixed bracket 105 is removed; then the docking bolts 103 are turned to remove the docking block 102, disassemble the assembly frame, and remove the base angle irons 104 from both sides and remove the gaskets to complete the disassembly of the device.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A positioning device for a pre-embedded segment steel bar skeleton, characterized in that: The invention comprises a positioning component (1) and a support member (4) for maintaining the stable posture of the positioning component (1), wherein the positioning component (1) comprises an assembled frame (101), four side walls of the assembled frame (101) are each provided with a positioning mechanism (2), and the heights of the positioning mechanisms (2) on two adjacent side walls are different, and the positioning mechanism (2) comprises a fixed bracket (105), and a limiting component for limiting the position of a steel bar is slidably connected to the top of the fixed bracket (105).

2. A positioning device for a pre-embedded segment steel bar skeleton according to claim 1, characterized in that: The limit assembly comprises a spliced ​​positioning plate (201), the spliced ​​positioning plate (201) comprising two symmetrically arranged half rack plates, one side of the two half rack plates being provided with a plurality of semicircular holes arranged at equal intervals, the plurality of semicircular holes being butted together in pairs to form a plurality of limit holes (202), and both ends of the two half rack plates being threadedly connected with locking bolts (203).

3. A positioning device for a pre-embedded segment steel bar skeleton according to claim 1, characterized in that: The assembled frame (101) comprises two U-shaped frames, a docking block (102) is fixedly connected to the butt joint of the two U-shaped frames, a group of docking bolts (103) are threadedly connected to both sides of the top of the docking block (102), and the two groups of docking bolts (103) are respectively fixedly connected to the two U-shaped frames; and a base angle iron (104) is fixedly connected to the bottom of the side edges of the two U-shaped frames.

4. A positioning device for a pre-embedded segment steel bar skeleton according to claim 3, characterized in that: The base angle iron (104) comprises a supporting portion, the supporting portion being configured as a bar iron with an L-shaped cross section, both ends of the inner wall of the supporting portion being fixedly connected with blocking pieces, and the spacing between the two blocking pieces being consistent with the side length of the assembled frame (101).

5. The positioning device for a pre-embedded segment steel bar skeleton according to claim 1, characterized in that: The support member (4) comprises a plurality of support angle bars (401), the bottoms of the plurality of support angle bars (401) being bent to form bent anchor angle bars (403), and the bottoms of the plurality of bent anchor angle bars (403) being fixedly connected to support angle irons (402).

6. The positioning device for a pre-embedded segment steel bar skeleton according to claim 1, characterized in that: The limiting assembly comprises a square steel tube slide rail (301), a plurality of positioning seats (304) are slidably mounted in the middle of the square steel tube slide rail (301), a spring clamp (306) is fixedly mounted on one side of each of the positioning seats (304), a through opening is opened in the middle of each of the positioning seats (304), a positioning bolt is rotatably mounted on the inner wall of the through opening, and a plurality of positioning holes (305) are opened on the square steel tube slide rail (301).

7. A positioning device for a pre-embedded segment steel bar skeleton according to claim 6, characterized in that: The spring clamp (306) comprises a fixing portion (3061), one end of which is rotatably connected to a clamping hook (3062), a groove being provided in the middle of the fixing portion (3061), the clamping hook (3062) being provided in a semi-annular shape, the inner wall of the clamping hook (3062) and the inner wall of the groove forming a limiting groove for limiting the position of the steel bar; the other end of the fixing portion (3061) is provided with a clamping piece (307) for clamping and fixing the clamping hook (3062).

8. A positioning device for a pre-embedded segment steel bar skeleton according to claim 7, characterized in that: The clamping member (307) comprises a movable cavity (3071), one side of the inner wall of the movable cavity (3071) is rotatably connected to a movable sheet (3073), the other side of the movable cavity (3071) is slidably connected to a pressing frame (3072), the top of the pressing frame (3072) is fixedly connected to a return spring (3075), the top of the return spring (3075) is fixedly mounted with a mounting rod, the middle of the mounting rod is fixedly connected to a pressing rod (3074), the bottom of the pressing rod (3074) is tightly pressed against the top of the movable sheet (3073) A card slot (3076) is provided on one side of the pressing frame (3072); a card block (3077) is fixedly connected to the side of the movable piece (3073) close to the pressing frame (3072); the card slot (3076) and the card block (3077) are engaged and connected; a locking tooth groove (3079) is provided on the side of the movable piece (3073) away from the pressing frame (3072); a locking tooth piece (3078) is fixedly connected to one side of the engaging hook (3062); the locking tooth groove (3079) and the locking tooth piece (3078) are engaged and connected.

9. A positioning device for a pre-embedded segment steel bar skeleton according to claim 6, characterized in that: Both ends of the square steel tube slide rail (301) are fixedly installed with fixing parts, and the fixing parts include a base frame (302), the edge of the base frame (302) is threadedly connected with a fixing bolt (303), the top of the base frame (302) is fixedly connected with a fixing sleeve (308), the inner wall of the fixing sleeve (308) is slidably connected to the square steel tube slide rail (301), and the fixing sleeve (308) is locked with the end of the square steel tube slide rail (301) by a transverse bolt (309).

10. A positioning device for a pre-embedded segment steel bar skeleton according to any one of claims 1 to 9, characterized in that: The installation method of the positioning device comprises the following steps: Step 1: According to actual needs, the frame (101), the fixing bracket (105), the leveling gasket (107) and the base angle iron (104) are pre-processed according to specifications, and the positioning plate (201) is opened according to the structural cross-sectional dimensions and the number and spacing of the steel bars; Step 2: Level and reinforce the ground at the preset installation position of the support angle iron (402) according to the design, install and fix the support angle bar (401) and the support angle iron (402) in place according to the design; pre-embed the bottom of the bent anchor angle bar (403) and the support angle iron (402) in place in advance, and then install the foundation plate surface reinforcement; Step 3: After the steel bars of the foundation plate are installed, a leveling washer (107) is placed on the steel plate surface according to the measured positioning, and after checking the level, a base angle iron (104) is placed on the leveling washer (107); Step 4: placing the assembled frame (101) on the upper part of the base angle iron (104), and fixing the assembled frame (101) into a stable whole by using the docking block (102) and the docking bolts (103); Step 5: placing a fixing bracket (105) on the inner wall of the assembly frame (101), and fastening the fixing bracket (105) and the assembly frame (101) to form a whole by bolts; Step 6: Positioning and installing the splicing positioning plate (201), and fastening the splicing positioning plate (201) to the fixing bracket (105) by means of locking bolts (203); Step 7: The steel bars at the non-corner reinforcement positions are sequentially passed through the limiting holes (202) on the splicing positioning plate (201), and then the positioning and fastening conditions of the splicing positioning plate (201) are reviewed to complete the installation of the positioning device.

Images