Wall steel bar planting positioning method for autoclaved aerated concrete masonry

Abstract

The present invention relates to building construction, in particular to a method for positioning rebar implantation on the wall surface of sand aerated masonry. The method comprises the following steps: S1, fabricate a rebar implantation point positioner, which includes an operating hand rod, a roller bracket hinged to the upper end of the operating hand rod, and a roller embossing assembly rotatably installed within the roller bracket; S2, adjust the pen tube to the position of the front and back wall surfaces before construction; S3, set up an infrared line projector to unify the rebar implantation elevation of the entire floor; S4, correct the height of the rebar implantation point positioner through the elevation auxiliary positioning groove; S5, use the operating hand rod to make the roller roll upward along the wall. Each time the roller rotates one week, the embossing pen tube completes one embossing operation. The present invention improves the accuracy of rebar implantation hole positioning, improves construction efficiency, ensures construction quality, has a simple structure, is easy to operate, has a low cost, and saves labor.

Description

Technical Field

[0001] The present invention relates to building construction, and particularly to a method for positioning implanted bars on the wall surface of sand aerated masonry. Background Art

[0002] During the construction of building walls, in order to control wall cracks and meet seismic requirements, the infill wall masonry of the current high-rise shear wall structure is generally provided with through-length tie bars. The tie bars adopt the post-implantation construction technology, and are successively anchored through processes such as positioning, drilling, boring, and anchoring with implanting glue, and the tie bars are anchored at the end of the shear wall.

[0003] For traditional bar implantation positioning work, the artificial ruler measurement method is used for bar implantation positioning, and the operation is relatively rough, and it is difficult to ensure the horizontal and vertical positions of the bar implantation points. Especially in recent years, with the rapid development of new building materials in the construction industry, in order to reduce the wall settlement and cracking problems caused by the shrinkage of the self-joints of the infill wall masonry, real estate developers and construction units have gradually started to adopt the thin mortar masonry construction method, that is, the masonry material is changed from the traditional cinder brick to the sand aerated concrete block, the bonding material is changed from cement mortar or mixed mortar to a professional masonry mortar, and the joint thickness is changed from 10mm±2mm to 2mm to 3mm.

[0004] After the construction method is completed, the construction quality is relatively high, and the integrity, heat preservation and sound insulation performance of the masonry are better after completion. After the masonry mortar hardens, not only can the masonry itself be effectively bonded into a whole, but also an effective bond can be formed with the structure. However, at the same time, this construction method has higher requirements for construction technology. Especially for bar implantation positioning work, in order to meet the requirements of reinforced thin mortar masonry, two semi-circular grooves are reserved on the surface of the masonry when the sand aerated concrete block leaves the factory. When the masonry is laid, the groove position should be highly consistent with the position of the pre-implanted bar.

[0005] However, the traditional positioning method is that workers measure according to the building 1-meter line with a tape measure, then roughly draw a line, and draw two bar points at the corresponding vertical positions. This method is not only difficult to operate, but also difficult to ensure the vertical position and the plane position. Summary of the Invention

[0006] The present invention aims to solve the above technical problems, and thus provides a method for positioning implanted bars on the wall surface of sand aerated masonry, which improves the accuracy of bar implantation positioning and the construction quality.

[0007] The technical solution adopted by the present invention to solve its technical problems is:

[0008] A method for positioning implanted bars on the wall surface of sand aerated masonry includes the following steps:

[0009] S1. Fabricate a rebar planting point locator, which includes an operating lever, a roller bracket hinged to the upper end of the operating lever, and a roller embossing assembly rotatably installed within the roller bracket. The roller embossing assembly includes a roller, a spring, an embossing pen tube, and a fixed cover. The roller symmetrically has two radial tube holes. The spring and the embossing pen tube are sequentially placed within the tube holes. The fixed cover presses against the embossing pen tube and is snap-connected to the roller. A rubber sleeve densely covered with protruding parts is sleeved outside the roller. The outer end of the embossing pen tube extends out of the fixed cover and the rubber sleeve. The roller bracket is provided with an elevation auxiliary positioning groove;

[0010] S2. Before construction, adjust the embossing pen tube to the position of the front and back walls;

[0011] S3. Set up an infrared alignment instrument to unify the rebar planting elevation of the entire floor;

[0012] S4. Calibrate the height of the rebar planting point locator through the elevation auxiliary positioning groove;

[0013] S5. Use the operating lever to make the roller roll upward along the wall. Each time the roller rotates one week, the embossing pen tube completes one embossing operation.

[0014] Compared with the prior art, the beneficial effects of the present invention adopting the above technical solutions are as follows:

[0015] It improves the accuracy of rebar planting hole positioning, improves construction efficiency, ensures construction quality, has a simple structure, is easy to operate, has a low cost, and saves labor.

[0016] Furthermore, the optimized solution of the present invention is:

[0017] The roller bracket is U-shaped. Installation grooves are opened on both of its side plates. Square shaft sleeves are respectively sleeved at both ends of the roller shaft. The square shaft sleeves are placed within the installation grooves. A positioning component is provided outside the square shaft sleeves.

[0018] The positioning component includes an upper positioning sleeve, a positioning pin, and a lower positioning sleeve. Both the upper positioning sleeve and the lower positioning sleeve are rectangular and are fixedly connected to the side plates of the roller bracket. The positioning pin passes through the upper positioning sleeve and the lower positioning sleeve. The inner side of the positioning pin is inserted into the positioning groove of the square shaft sleeve.

[0019] It further includes a roller reset component, which includes an elastic cable and a fixing plate. One end of the elastic cable is fixedly connected to the outer end of the roller shaft. The other end of the elastic cable is fixedly connected to the fixing plate. The fixing plate is fixedly connected to the roller bracket.

[0020] Grooves are respectively opened on the outer end faces of the two side plates of the roller bracket. Auxiliary rollers are rotatably installed within the grooves. Rubber sleeves are sleeved on the outer circumferential surfaces of the auxiliary rollers. The outer circumferential surfaces of the rubber sleeves are densely covered with protruding parts. The tread surfaces of the auxiliary rollers and the roller are located in the same plumb plane. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0022] Figure 2 is a front view of the roller bracket and the roller assembly of an embodiment of the present invention;

[0023] Figure 3 is Figure 2 the left view of;

[0024] Figure 4 is Figure 2 the A-A cross-sectional view of;

[0025] Figure 5 is Figure 2 the B-B cross-sectional view of;

[0026] Figure 6 is a front view of the fixed cover of an embodiment of the present invention;

[0027] Figure 7 is Figure 6 the bottom view of;

[0028] Figure 8 is Figure 6 the left view of;

[0029] Figure 9 is a schematic diagram of the embossing pen tube of an embodiment of the present invention;

[0030] Figure 10 is a front view of the operating hand lever of an embodiment of the present invention;

[0031] Figure 11 is a schematic diagram of the embossing of the wall reinforcement points of an embodiment of the present invention.

[0032] In the figure: roller bracket 1; installation groove 1-1; groove 1-2; auxiliary roller 1-3; elevation auxiliary positioning groove 1-4; roller embossing assembly 2; roller 2-1; roller shaft 2-2; spring 2-3; embossing pen tube 2-4; fixed cover 2-5; cover plate 2-6; buckle 2-7; card strip 2-8; rubber sleeve 2-9; square bushing 2-10; protruding portion 2-11; positioning assembly 3; upper positioning sleeve 3-1; positioning pin 3-2; lower positioning sleeve 3-3; roller reset assembly 4; elastic cable 4-1; fixing plate 4-2; ear seat 5; ear plate 6; connecting sleeve 7; operating hand lever 8; upper tube 8-1; lower tube 8-2; adjusting spring 8-3; protective cover 9; wall 10. Detailed Description of the Specific Embodiment

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0034] See Figure 1, this embodiment is a method for positioning implanted bars on the wall surface of sand aerated masonry. In this embodiment, a tie bar is set on the wall every 600 mm, and the steps are as follows:

[0035] S1. Fabricate a positioning device for the implanted bar points ( Figures 2 - 5 as shown)

[0036] The positioning device for the implanted bar points mainly consists of a roller bracket 1, a roller embossing assembly 2, and an operating lever 8. The roller bracket 1 is U-shaped, with a thickness of 3 mm, a distance of 200 mm between its two side plates, and rectangular mounting grooves 1-1 are opened on both side plates. The roller embossing assembly 2 mainly consists of a roller 2-1, a roller shaft 2-2, a spring 2-3, an embossing pen tube 2-4, and a fixing cover 2-5. The outer diameter of the roller 2-1 is 192 mm and the circumference is 602.8 mm. The roller 2-1 is installed on the roller shaft 2-2 by a key. Two radial tube holes are symmetrically opened on the roller 2-1. The spring 2-3 and the embossing pen tube 2-4 ( Figure 9 as shown) are sequentially placed in the tube holes, and the embossing pen tube 2-4 is filled with ink;

[0037] The fixing cover 2-5 presses the embossing pen tube 2-4. The fixing cover 2-5 mainly consists of a cover plate 2-6 and a buckle 2-7 ( Figures 6 - 8 as shown). The cover plate 2-6 is strip-shaped, with an arc-shaped outer surface. Two mounting holes are symmetrically opened on the cover plate 2-6. Two buckles 2-7 are respectively installed in the two mounting holes. The buckle 2-7 is Y-shaped. The upper vertical part of the buckle 2-7 is fixedly connected to the mounting hole of the cover plate 2-6. A card strip 2-8 is provided on the outer side of the upper inclined part of the buckle 2-7. Two radial card slots are symmetrically opened on the outer side of the tube hole of the roller 2-1. The inner wall of the card slot is provided with a card plate. The buckle 2-7 is placed in the card slot, and the card strip 2-8 is clamped with the card plate. The cover plate 2-6 is located in the embedded groove of the roller 2-1, and the outer surface of the cover plate 2-6 and the outer surface of the roller 2-1 form a complete circle. During disassembly, the upper inclined part is moved inward to separate the card strip 2-8 from the card plate. A through hole corresponding to the embossing pen tube 2-4 is opened on the cover plate 2-6, and the through hole is a tapered hole. A rubber sleeve 2-9 is sleeved outside the roller 2-1 and the cover plate 2-6. The outer circumferential surface of the rubber sleeve 2-9 is densely distributed with cylindrical protrusions 2-11. The outer end of the embossing pen tube 2-4 sequentially extends out of the through hole of the cover plate 2-6 and the rubber sleeve 2-9;

[0038] Square shaft sleeves 2-10 are respectively sleeved on the wheel axles 2-2 on both sides of the roller 2-1, and the two square shaft sleeves 2-10 are respectively placed in the installation grooves 1-1 of the roller bracket 1. A positioning assembly 3 is provided on the outer side of the square shaft sleeve 2-10. The positioning assembly 3 is mainly composed of an upper positioning sleeve 3-1, a positioning pin 3-2 and a lower positioning sleeve 3-3. Both the upper positioning sleeve 3-1 and the lower positioning sleeve 3-3 are rectangular. The two positioning sleeves are respectively welded to the outer plate surfaces of the side plates of the roller bracket 1. The positioning pin 3-2 with a rectangular cross-section is inserted into the upper positioning sleeve 3-1 and the lower positioning sleeve 3-3. The inner side of the positioning pin 3-2 is inserted into the positioning groove of the square shaft sleeve 2-10 to position the square shaft sleeve 2-10, and thus position the roller 2-1. The protruding part 2-11 of the rubber sleeve 2-9 extends out of the roller bracket 1. During operation, the protruding part 2-11 contacts the wall surface 10 to generate frictional force, thereby driving the roller 2-1 to rotate;

[0039] A roller reset assembly 4 is arranged between the side plates of the roller bracket 1 and the roller shaft 2-2. The roller reset assembly 4 is mainly composed of an elastic cable 4-1 and a fixing plate 4-2. The elastic cable 4-1 can be a rubber band. One end of it is fixedly connected to the outer end of the roller shaft 2-2, and the other end of the elastic cable 4-1 is connected to the fixing plate 4-2. The fixing plate 4-2 is welded to the roller bracket 1. During construction, the elastic cable 4-1 is tightened and wound around the roller shaft 2-2. When the operation stops and the roller 2-1 leaves the wall surface 10, after losing the restraint, the roller shaft 2-2 rotates in reverse to make the roller 2-1 return to its original position. A protective cover 9 is arranged outside the positioning assembly 3 and the roller reset assembly 4;

[0040] Grooves 1-2 are respectively opened on the outer end faces of the two side plates of the roller bracket 1. Auxiliary rollers 1-3 are rotatably installed in the grooves 1-2. The tread surfaces of the auxiliary rollers 1-3 and the roller 3-1 are located in the same vertical plane. The diameter of the auxiliary roller 1-3 is smaller than that of the roller 2-1. Rubber sleeves are sleeved outside the auxiliary rollers 1-3, and the outer circumferential surfaces of the rubber sleeves are densely distributed with cylindrical protruding parts 2-11, and the protruding parts 2-11 extend out of the roller bracket 1. During operation, the rubber sleeves of the auxiliary rollers 1-3 contact the wall surface 10 through the protruding parts to ensure the linearity of the roller bracket 1;

[0041] A elevation auxiliary positioning groove 1-4 is opened at the lower end of the outer side surface of the bottom plate of the roller bracket 1. The horizontal position of the roller bracket 1 is horizontally adjusted through the elevation auxiliary positioning groove 1-4 so that its outer side is in the same vertical line as the outer side of the roller 2-1. An ear seat 5 is welded to the outer side surface of the bottom plate of the roller bracket 1. The ear seat 5 is hinged to an ear plate 6 through a pin shaft. The ear plate 6 is welded to a connecting sleeve 7, and the connecting sleeve 7 is threadedly connected to an operating hand rod 8. The operating hand rod 8 is a two-section telescopic structure, which is mainly composed of an upper pipe 8-1, a lower pipe 8-2 and an adjusting spring 8-3 ( Figure 10As shown in the figure, the upper tube 8-1 is inserted into the lower tube 8-2, the outer wall of the upper tube 8-1 is in close contact with the inner wall of the lower tube 8-2, and a spring 8-3 is arranged between the upper tube 8-1 and the lower tube 8-2. The upper tube 8-1 and the lower tube 8-2 at both ends of the spring 8-3 are respectively welded with retaining rings to ensure that the operating hand lever 8 can freely stretch and retract. A plastic handle is arranged at the lower end of the lower tube 8-2 for easy operation by personnel;

[0042] S2. Before construction, adjust the nozzle of the embossed pen tube 2-4 to the position of the front and back walls 10. At this time, the vertical distance between the center of the elevation auxiliary positioning groove 1-4 and the center of the embossed pen tube 2-4 is 150 mm ( Figure 11 as shown in the figure);

[0043] S3. First, set up the infrared projection instrument to unify the rebar planting elevation of the entire floor;

[0044] S4. Adjust the infrared elevation to the +150 mm position, and correct the height of the rebar planting point locator through the elevation auxiliary positioning groove 1-4 so that the infrared ray coincides with the elevation auxiliary positioning groove 1-4. At this time, the horizontal elevation of the center of the roller 2-1 is +300 mm;

[0045] S5. Lift the operating hand lever 8 to make the roller 2-1 roll upward along the wall. The roller 2-1 rotates half a circle and prints the first mark at the 301 mm position, and then prints a mark every 602.8 mm. After the marking is completed, release the roller 2-1, and the roller 2-1 will return to the correct position by itself.

[0046] The roller 2-1 of the present invention can be made in multiple specifications to adapt to different spacings of the planted rebars. The cover plate 2-6 can also be connected to the roller 2-1 by bolts.

[0047] The above are only the preferred and feasible embodiments of the present invention, and do not limit the scope of the rights of the present invention. Any equivalent structural changes made by using the description and drawings of the present invention are included in the scope of the rights of the present invention.

Claims

1. A method for positioning rebar implantation on the wall surface of sand aerated masonry, comprising the following steps: S1. Fabricate a rebar implantation point positioner, which includes an operating lever, a roller bracket hinged to the upper end of the operating lever, and a roller embossing assembly rotatably installed within the roller bracket. The roller embossing assembly includes a roller, a spring, an embossing pen tube, and a fixed cover. Two radial tube holes are symmetrically formed in the roller. The spring and the embossing pen tube are sequentially placed within the tube holes. The fixed cover presses on the embossing pen tube and is snap - connected to the roller. A rubber sleeve with densely distributed protrusions is sleeved outside the roller. The outer end of the embossing pen tube extends out of the fixed cover and the rubber sleeve. The roller bracket is provided with an elevation auxiliary positioning groove; S2. Before construction, adjust the embossing pen tube to the position of the front and back walls; S3. Set up an infrared line projector to unify the rebar implantation elevation of the entire floor; S4. Calibrate the height of the rebar implantation point positioner through the elevation auxiliary positioning groove; S5. Use the operating lever to make the roller roll upward along the wall. Each time the roller rotates one week, the embossing pen tube completes one embossing operation; The roller bracket is U - shaped, and installation grooves are formed on both of its side plates. Square bushings are sleeved at both ends of the roller shaft, and the square bushings are placed within the installation grooves. A positioning assembly is provided outside the square bushings; The positioning assembly includes an upper positioning sleeve, a positioning pin, and a lower positioning sleeve. Both the upper positioning sleeve and the lower positioning sleeve are rectangular and are fixedly connected to the side plates of the roller bracket. The positioning pin passes through the upper positioning sleeve and the lower positioning sleeve, and the inner side of the positioning pin is inserted into the positioning groove of the square bushing; It further includes a roller reset assembly, which includes an elastic cable and a fixed plate. One end of the elastic cable is fixedly connected to the outer end of the roller shaft, the other end of the elastic cable is fixedly connected to the fixed plate, and the fixed plate is fixedly connected to the roller bracket; Grooves are respectively formed on the outer end faces of the two side plates of the roller bracket. Auxiliary rollers are rotatably installed within the grooves. Rubber sleeves are sleeved on the outer circumferential surfaces of the auxiliary rollers. The outer circumferential surfaces of the rubber sleeves are densely distributed with protrusions. The tread surfaces of the auxiliary rollers and the roller are located in the same vertical plane.

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