Intermediate blocking device for AAC plate

By using the interruption steel brazing and limit strip structure in the AAC sheet intermediate interruption device, the problems of cutting deviation and crack extension in the prior art are solved, and a smaller section depth and higher concrete quality are achieved.

CN119099050APending Publication Date: 2024-12-10FUJIAN ZHENGXUN GREENTOWN BUILDING MATERIALS CO LTD
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Patent Information

Application Number
CN202310675227.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-06-08
Publication Date
2024-12-10

AI Technical Summary

Technical Problem

The existing wire cutting machines lack intermediate support points when cutting AAC plate embryos, resulting in cutting skew and deviation, making it difficult to ensure the certainty of the pre-cut position, and the fracture may extend in other directions, which increases the subsequent finishing section. depth.

Method used

A middle interruption device of AAC sheet is designed, using the interruption steel brazing and limit strip structure. Through the fastening design of the L-shaped plate and the frame, the interruption steel brazing is ensured along the straight line of the grid when the concrete is broken. Breakage reduces cross-section depth, and improves the utilization rate of saddle frame sets and the quality and stability of concrete through a new snap design.

Benefits of technology

It effectively avoids the extension of fractures, significantly reduces the depth of sections that need to be cut, improves the certainty of cutting and the quality of concrete, increases the utilization rate of saddle frame groups, and reduces the generation of internal defects and cavity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to an AAC plate middle blocking device. The AAC plate middle blocking device comprises a frame body connected with a saddle frame base. L-shaped plates are arranged above the two ends of the frame body respectively, the long sides of the L-shaped plates are parallel to the frame body and are fixedly connected with the frame body through bolts, and the short sides of the L-shaped plates are in threaded connection with hand-screwing screws; the frame body and the saddle frame seat are fastened through the hand screw rod; a row of cut-off steel chisels arranged in the length direction of the frame body are arranged between the two L-shaped plates, the lower portion of each cut-off steel chisel penetrates through the frame body, and the upper portion of each cut-off steel chisel is connected with the frame body through a T-shaped gasket. A limiting strip in the length direction of the frame body is further arranged between the two L-shaped plates. According to the invention, concrete is broken along the row straight line direction of the blocking steel chisel, and broken cracks are effectively prevented from extending towards other directions, so that the depth of a section needing to be cut off can be obviously reduced during follow-up section arrangement.
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Description

Technical Field

[0001] The invention relates to an AAC plate middle intercepting device, belonging to the technical field of aerated plate production equipment. Background Art

[0002] In order to prevent the sheet blank from breaking due to deformation during the forming process, a blocking device, such as a cutting wire, is usually used to pre-cut the sheet blank at a predetermined position. The cutting wire mechanism used in the existing wire cutting machine has no support point in the middle, which makes the wire easy to shift during the cutting process, causing cutting deflection and deviation, etc., and it is difficult to ensure the certainty of the pre-cutting position. Summary of the invention

[0003] In order to overcome the above problems, the present invention provides an AAC board middle blocking device, in which a blocking width is preset on the board body, so that the concrete is disconnected along the straight line direction of the blocking steel chisels, and the extension of the disconnection cracks to other directions is effectively prevented, thereby significantly reducing the depth of the section that needs to be cut during subsequent section finishing.

[0004] The technical solution of the present invention is as follows:

[0005] An AAC plate middle blocking device comprises a frame connected to a saddle frame seat; L-shaped plates are respectively arranged above both ends of the frame, the long sides of the L-shaped plates are parallel to the frame and fixedly connected by bolts, and the short sides of the L-shaped plates are threadedly connected to hand-tightened screws; the frame and the saddle frame seat are fastened by the hand-tightened screws; a row of blocking steel chisels arranged along the length direction of the frame is provided between the two L-shaped plates, the lower part of each blocking steel chisel passes through the frame, and the upper part of each blocking steel chisel is connected to the frame through a T-shaped gasket; a flat part is provided at the lower part; the narrow side of the flat part faces the straight line direction of the row of blocking steel chisels; a limiting strip is also provided along the length direction of the frame between the two L-shaped plates; when the limiting strip is fastened to the frame by self-tapping screws, the T-shaped gaskets placed between the limiting strip and the frame are pressed tightly against the frame by the limiting strip.

[0006] Wherein, the distance between adjacent blocking steel chisels is 2.5cm-3cm.

[0007] Wherein, the frame is perpendicular to the long beam of the saddle frame seat; the long side of each L-shaped plate is mounted on the long beam, and the short side of each L-shaped plate is placed on the side of the adjacent long beam away from the frame body, and a threaded through hole is opened in the middle of the short side, and the threaded through hole is sleeved with a hand-tightened screw matched therewith, and the hand-tightened screw is perpendicular to the saddle frame seat.

[0008] Among them, the frame is provided with through holes corresponding to the positions of a row of the blocking steel chisels along its length direction; a T-shaped gasket is sleeved on the upper outer periphery of each of the blocking steel chisels, the head of the T-shaped gasket is welded to the blocking steel chisel, and the rod of the T-shaped gasket is sleeved in the through hole adjacent to it.

[0009] Wherein, the self-tapping screw is locked with the frame after passing through the limit strip; when the limit strip is locked with the frame, the flat portion of the lower part of each intercepting steel chisel is placed on the same vertical plane.

[0010] Wherein, rib plates perpendicular to the long sides of each L-shaped plate are respectively arranged on both sides of the long sides, and the bottoms of the rib plates are welded to the adjacent long beams.

[0011] Wherein, the bolts pass through the frame and adjacent long sides in sequence and are then locked with nuts.

[0012] Among them, at least two saddle rack groups are fixedly connected to the saddle rack seat, and each saddle rack group includes at least two saddle racks; the blocking device is arranged between the two saddle rack groups; a plurality of steel chisels are arranged vertically in a row on the saddle rack; the steel chisels are erected and lifted and lowered by buckles; the buckles include a left card body and a right card body; the left card body and the right card body respectively include a holding ring, a vertically arranged arc panel and a cross arm; the lower end of the holding ring is fixedly connected with the upper end of the arc panel; the holding ring is inclined so that the steel chisel passes through the holding ring; the holding ring is elliptical, but its projection in the vertical direction is a circle with a diameter slightly larger than the diameter of the steel chisel shape; the embracing rings of the left card body and the right card body cross-embrace the steel chisel; the inner wall in the middle of the arc panel is provided with an inwardly sunken arc groove; the steel chisel is a hollow tubular structure with a closed bottom or a pointed portion; corresponding to the position of the arc groove, small holes are respectively opened on the wall of the steel chisel tube; a Rupert's tear is correspondingly penetrated by the small hole; the round head of the Rupert's tear is located outside the small hole and is embedded in the arc groove, serving as a rotation fulcrum for the left card body and the right card body; the slender tail of the Rupert's tear passes through the small hole and extends into the hollow space in the steel chisel; the diameter of the small hole is roughly half the diameter of the round head of the Rupert's tear.

[0013] One end of the cross arm is fixed to the lower part of the curved panel, and the other end extends outward laterally; the other end of the cross arm is provided with an upward bridging groove for bridging the transverse reinforcement of the steel mesh.

[0014] During installation, the left and right card bodies are clamped with steel bars on the left and right sides and then tightened on the arc panel below the cross arm through a Velcro or rubber band.

[0015] Wherein, the holding ring and the arc panel are integrally formed and are made of plastic or metal.

[0016] The present invention has the following beneficial effects:

[0017] 1. During the pulling out process of the intercepting steel bar provided in the present invention, due to the existence of the flat portion, the flat portion cuts the concrete upwards during the pulling out process. Since the flat portions are oriented in the same direction and are almost connected in a straight line, the concrete is disconnected along the straight line direction of the intercepting steel bar, and the extension of the disconnection cracks to other directions is effectively avoided, so that the depth of the section that needs to be cut can be significantly reduced when the section is subsequently trimmed.

[0018] 2. The present invention limits the gasket arranged on the upper part of the blocking steel bar by means of a limiting strip, so that the flat parts of several blocking steel bar can be in the same straight line, forming a smaller blocking width, thereby avoiding the reduction of the embryo body molding quality.

[0019] 3. The buckle design in the first embodiment of the present invention can improve the utilization rate of the saddle frame group: the traditional buckle design can be pulled out only when the concrete solidifies to a sufficient strength, which reduces the utilization rate of the saddle frame group. The new buckle design can pull out the steel bar when the concrete begins to solidify, thereby greatly improving the utilization rate of the saddle frame group; it can reduce the internal defects of the concrete: the traditional buckle design will destroy the internal structure of the concrete in the process of pulling out the steel bar, and the resulting cavity cannot be filled by the flow of concrete, resulting in internal defects of the concrete. The new buckle design will not destroy the internal structure of the concrete in the process of pulling out the steel bar, and will not produce cavities that cannot be filled by the flow of concrete; it can improve the quality and stability of the concrete: the new buckle design can better fix the steel mesh in the predetermined position, which helps to improve the quality and stability of the concrete. When the concrete begins to solidify, the buckle can pull out the steel bar in time, avoiding damage to the internal structure of the concrete, thereby improving the quality and stability of the concrete; in addition, the new buckle uses the principle of lever, through the ingenious design and combination of the holding ring, the arc panel, the cross arm and the soluble pin, it can use the gravity of the steel mesh itself to achieve the buckle to firmly clamp the steel bar, at the same time, the release of the support of the lever structure can realize the release of the force between the buckle and the steel bar, thereby achieving a clever conversion and balance between the clamping and fixing functions and the release and extraction functions; the material of the teardrop part of Rupert's Tear forms high pressure due to rapid cooling, which can withstand great force, such as resisting the impact of bullets, and will not The teardrop is easily destroyed, while its tail is quite fragile. If the tail is slightly damaged, the entire teardrop will be completely shattered in an instant. Rupert's Tears is used as the fulcrum of the lever structure, and the steel bar is designed as a pipe pile, and the head and tail of Rupert's Tears are separated by a small hole. Not only can the head be used to withstand the pressure of the steel mesh and the buckle can firmly clamp the steel bar, but the tail can also be simply destroyed from the inside of the steel bar, so that Rupert's Tears are instantly shattered, the lever structure loses its fulcrum, and the clamping is instantly released. Since Rupert's Tears are shattered extremely thoroughly, the powder or particles formed will not have a big impact on the inside of the concrete, and can even be used as fine bone particles in the concrete to improve its local strength.

[0020] 4. The buckle design of the second embodiment of the present invention not only has the above advantages, but also cleverly applies the characteristics of the soluble pin to dissolve or soften by absorbing water, and utilizes the water environment inside the concrete to enable the soluble pin to serve as the hinge point of the lever structure and the left and right extrusion support points to transform between a solid rigid body and a dispersed state or a flexible state, so that the buckle 72 can be automatically unlocked when the concrete begins to solidify. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a top view of the present invention connected with the saddle frame seat.

[0022] Figure 2 It is a side view of the present invention connected with a saddle frame seat.

[0023] Figure 3 It is a front cross-sectional view of the present invention.

[0024] Figure 4 for Figure 3 A partial enlarged view of point A.

[0025] Figure 5 It is a side view of the intercepting steel chisel;

[0026] Figure 6 It is a structural schematic diagram of Embodiment 1 of the buckle;

[0027] Figure 7 It is a cross-sectional schematic diagram of the first embodiment of the buckle.

[0028] Figure 8 It is a structural schematic diagram of the second embodiment of the buckle.

[0029] The reference numerals in the figure are as follows:

[0030] 1. Saddle frame seat; 11. Long beam; 2. Frame body; 21. Through hole; 3. L-shaped plate; 31. Long side; 32. Short side; 33. Bolt; 34. Hand screw; 35. Threaded through hole; 36. Nut; 4. Blocking steel chisel; 41. T-type gasket; 42. Flat part; 5. Limit strip; 51. Self-tapping screw; 6. Rib plate; 7. Saddle frame assembly; 71. Steel chisel; 711. Small hole; 72. Saddle frame; 73. Buckle; 730. Rupert's tear; 731. Left card body; 732. Right card body; 733. Ring; 734. Arc panel; 735. Cross arm; 736. Soluble pin; 737. Lap groove; 738. Velcro or rubber band; 739. Arc groove; 8. Steel mesh; 81. Horizontal reinforcement; 82. Vertical reinforcement. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] See also Figure 1-5, an AAC plate middle blocking device, comprising a frame 2 connected to a saddle frame seat 1; L-shaped plates 3 are respectively arranged above both ends of the frame 2, the long sides 31 of the L-shaped plates 3 are parallel to the frame 2 and fixedly connected by bolts 33, and the short sides 32 of the L-shaped plates 3 are threadedly connected to hand screws 34; the frame 2 and the saddle frame seat 1 are fastened by the hand screws 34; a row of blocking steel chisels 4 arranged along the length direction of the frame 2 is arranged between the two L-shaped plates 3, and each blocking steel chisel 4 is provided with a plurality of screws 34. The lower part of the drill 4 passes through the frame 2, and the upper part of each blocking steel drill 4 is connected to the frame 2 through a T-shaped gasket 41; a flat part 42 is provided at the lower part; the narrow side of the flat part 42 faces the straight line direction of the blocking steel drill 4; a limiting strip 5 along the length direction of the frame 2 is also provided between the two L-shaped plates 3; when the limiting strip 5 is fastened to the frame 2 by the self-tapping screws 51, the T-shaped gaskets 41 placed between the limiting strip 5 and the frame 2 are pressed tightly against the frame 2 by the limiting strip 5.

[0033] Furthermore, the distance between adjacent blocking steel chisels 4 is 2.5 cm-3 cm; if the distance between the blocking steel chisels 4 is too large, it will not achieve the effect of destroying the integrity of the plate blank, and if the distance is too small, the weight of the frame 2 will increase.

[0034] Furthermore, the frame body 2 is perpendicular to the long beam 11 of the saddle frame seat 1; the long side 31 of each L-shaped plate 3 is mounted on the long beam 11, and the short side 32 of each L-shaped plate 3 is placed on the side of the adjacent long beam 11 away from the frame body 2, and a threaded through hole 35 is opened in the middle of the short side 32, and the threaded through hole 35 is sleeved with a hand-tightened screw 34 matched therewith, and the hand-tightened screw 34 is perpendicular to the saddle frame seat 1.

[0035] Furthermore, the frame body 2 is provided with through holes 21 corresponding to the positions of a row of the blocking steel chisels 4 along its length direction; a T-shaped gasket 41 is sleeved on the upper periphery of each of the blocking steel chisels 4, the head of the T-shaped gasket 41 is welded to the blocking steel chisel 4, and the rod of the T-shaped gasket 41 is sleeved in the through hole 21 adjacent thereto.

[0036] Furthermore, the self-tapping screw 51 passes through the limit strip 5 and is locked with the frame 2; when the limit strip 5 is locked with the frame 2, the flat portion 42 at the bottom of each blocking steel chisel 4 is placed on the same vertical plane, forming a smaller blocking width to prevent waste of embryo material.

[0037] Furthermore, ribs 6 perpendicular to the long sides 31 of each L-shaped plate 3 are respectively provided on both sides of the long sides 31 , and the bottoms of the ribs 6 are welded to the adjacent long beams 11 .

[0038] Furthermore, the bolts 33 pass through the frame 2 and the adjacent long sides 31 in sequence and are then fastened with nuts 36 .

[0039] Working principle of the present invention:

[0040] See also Figure 1-5 At least two saddle frames 7 are fixedly connected to the saddle frame seat 1, and each saddle frame group 7 includes at least two saddle frames 72; when in use, the present invention is set between the two saddle frame groups 7, so that the frame body 2 is perpendicular to the long beam 11 of the saddle frame seat 1, and the long sides 31 on the L-shaped plates 3 at both ends of the frame body 2 are mounted on the adjacent long beam 11, and the hand-tightening screws 34 threadedly connected to the short sides 32 of the L-shaped plates 3 are rotated so that the hand-tightening screws 34 are tightly pressed against the side of the adjacent long beam 11 to fix the frame body 2; at this time, a number of blocking steel chisels 4 penetrated on the frame body 2 are placed on the same side as the steel chisels 71 on the saddle frame 72, and the straight line formed by the flat portion 42 at the lower part of each blocking steel chisel 4 is perpendicular to the long beam 11; each L-shaped plate 3 is provided with rib plates 6 perpendicular to it on both sides of the long side 31, and the bottom of the rib plates 6 are welded to the long beam 11 adjacent to it. The steel mesh 8 is mounted on the steel bar 71 through the buckle 73, and the saddle frame 72 drives the steel bar 71 and the steel mesh 8 to be lowered into the concrete together; then the steel bar 71 is pulled out to leave the steel mesh 8 in the concrete as a skeleton; the steel mesh 8 is welded or bundled by crisscrossing vertical bars 82 and transverse bars 81;

[0041] When in use, the saddle frame 72 descends, causing the steel bar 71, the steel mesh 8 and the blocking steel bar 4 to descend and submerge into the concrete slurry. After the concrete solidifies, the saddle frame 72 is lifted, the steel bar 71 and the blocking steel bar 4 are pulled out, and the steel mesh 8 is left in the concrete. In the process of pulling out the blocking steel bar 4, due to the existence of the flat portion 42, the flat portion 42 cuts the concrete upward during the pulling out process. Since the flat portions 42 are oriented in the same direction and are almost connected in a straight line, the concrete is disconnected along the straight line direction of the blocking steel bar 4, and the disconnection cracks are effectively prevented from extending in other directions, thereby significantly reducing the depth of the section that needs to be cut when the section is subsequently sorted.

[0042] The existing buckle 73 needs to be tightly clamped on the steel bar 71 when erecting and lowering the steel mesh 8, and the steel bar 71 needs to be able to be pulled out in time when the concrete begins to solidify. Therefore, the steel bar 71 needs to be loosened, otherwise the buckle 73 and the steel mesh 8 will be pulled out during the process of pulling out the steel bar 71. The existing buckle 73 cannot achieve this conversion. Generally, when the concrete solidifies to a high strength in the middle and late stages, the steel bar 71 is pulled out by force. During the pulling out process, the buckle 73 is pulled out by the strength of the concrete after solidification. The structure of the buckle 73 is destroyed when the steel bar 71 is forcibly pulled out, and the clamping state is released. However, this method has two significant defects. First, the concrete needs to solidify to a sufficient strength before it can be pulled out, which reduces the utilization rate of the saddle frame 72; second, the concrete has almost no fluidity at this time. The hard pulling out process will not only destroy the internal structure of the concrete, but also the cavity created cannot be filled by the concrete flow, which will cause internal defects of the concrete; for this reason, the present invention designs two simple and effective buckles 73 that can solve the above problems for the buckle 73.

[0043] Example 1: See Figure 6 and 7 The buckle 73 includes a left card body 731 and a right card body 732; the left card body 731 and the right card body 732 respectively include a ring 733, a vertically arranged arc panel 734 and a cross arm 735; the lower end of the ring 733 is fixedly connected with the upper end of the arc panel 734; the ring 733 is tilted so that the steel drill 71 passes through the ring 733; the ring 733 is elliptical, but the projection in the vertical direction is a circle with a diameter slightly larger than the diameter of the steel drill 71; the rings 733 of the left card body 731 and the right card body 732 cross-embrace the steel drill 71; the inner wall of the middle part of the arc panel 734 is provided with an indented arc surface concave Groove 739; the steel drill 71 is a hollow tubular structure with a closed bottom or a pointed end; corresponding to the position of the arc groove 739, small holes 711 are respectively opened on the tube wall of the steel drill 71; a Rupert's tear 730 is correspondingly penetrated by the small hole 711; the round head of Rupert's tear 730 is located outside the small hole 711 and is embedded in the arc groove 739, serving as a rotation fulcrum for the left card body 731 and the right card body 732; the slender tail of Rupert's tear 730 passes through the small hole 711 and extends into the hollow space inside the steel drill 71; the diameter of the small hole 711 is roughly half of the diameter of the round head of Rupert's tear 730.

[0044] One end of the cross arm 735 is fixed to the lower part of the curved panel 734, and the other end extends outward laterally; the other end of the cross arm 735 is provided with an upward bridging groove 737 for bridging the transverse reinforcement 81 of the steel mesh 8.

[0045] Furthermore, during installation, after the left card body 731 and the right card body 732 clamp the steel bar 71 on the left and right sides, they are tightened on the arc panel 734 below the cross arm 735 through a Velcro or rubber band 738.

[0046] Furthermore, the holding ring 733 and the arc panel 734 are integrally formed and are made of plastic or metal.

[0047] In the first embodiment, the method for erecting the steel mesh 8 is as follows: first, the left clamp body 731 and the right clamp body 732 are rotated relatively close to each other, so that the steel drill 71 can pass through the two holding rings 733; after the buckle 73 is moved to the preset position, the small hole 711 at this position is inserted into the Rupert's tear 730, so that the round head is located outside the small hole 711 and is embedded in the arc groove 739; the arc panel 734 is pressed downward, and the round head of the Rupert's tear 730 is used as a fulcrum to make the ring surface of the holding ring 733 abut against and squeeze the outer circumferential surface of the steel drill 71, thereby obtaining friction. Due to the lever effect, the greater the pressure on the arc panel 734, the greater the clamping force of the ring 733 on the steel drill 71. Velcro or rubber band 738 is tightened on the lower part of the arc panel 734 to maintain the clamping force of the buckle 73 on the steel drill 71; then the steel mesh 8 is placed on each buckle 73, and its transverse rib 81 is embedded in the groove 737. At this time, the self-weight of the steel mesh 8 can exert a great pressure on the arc panel 734, so the ring 733 has sufficient clamping force on the steel drill 71; at this time, the Velcro can be untied or the rubber band can be cut;

[0048] Lower the steel bar 71 together with the steel mesh 8 into the groove filled with concrete. After a period of time, when the concrete begins to solidify, put or take in a gravity steel ball from the open mouth at the top of the steel bar 71. Since the tail of the Tear of Rupert 730 is relatively fragile, the tail of the Tear of Rupert 730 is broken one by one during the falling process of the steel ball, so that the whole Tear of Rupert 730 collapses in an instant; the left card body 731 and the right card body 732 lose the lever fulcrum, and the clamping force (friction force) of the ring 733 formed by the lever is significantly reduced or disappears, and the steel bar 71 can be pulled out smoothly by pulling it outward.

[0049] Example 2: See Figure 8 , the buckle 73 includes a left card body 731 and a right card body 732; the left card body 731 and the right card body 732 respectively include a ring 733, a vertically arranged arc panel 734 and a cross arm 735; the lower end of the ring 733 is fixedly connected with the upper end of the arc panel 734; the ring 733 is tilted so that the steel drill 71 passes through the ring 733; the ring 733 is elliptical, but the projection in the vertical direction is a circle with a diameter slightly larger than the diameter of the steel drill 71; the rings 733 of the left card body 731 and the right card body 732 cross-embrace the steel drill 71, and are hinged at the intersection by a rigid soluble pin 736 that can absorb water and dissolve; the two rings 733 support each other and form a lever structure with the corresponding arc panels 733; one end of the cross arm 735 is fixed to the middle of the arc panel 734, and the other end extends outward laterally; the other end of the cross arm 735 is provided with an upward bridging groove 737 to place the transverse reinforcement 81 of the steel mesh 8.

[0050] Furthermore, during installation, after the left card body 731 and the right card body 732 clamp the steel bar 71 on the left and right sides, they are tightened on the lower part of the arc panel 734 through a Velcro or rubber band 738.

[0051] Furthermore, the holding ring 733 and the arc panel 734 are integrally formed.

[0052] Furthermore, the soluble pin 736 is made of starch plastic, polyvinyl pyrrolidone, polyvinyl alcohol, polyethylene glycol or compressed paper.

[0053] In the second embodiment, the method for erecting the steel mesh 8 is as follows: first, the buckle 73 is fixed on the steel drill 71 according to the spacing between the upper and lower transverse ribs 81 of the steel mesh 8; first, the left clamp body 731 and the right clamp body 732 are relatively rotated to allow the steel drill 71 to pass through the two rings 733; after the buckle 73 is moved to the preset position, the arc panel 734 is pressed downward to make the ring surface of the ring 733 abut against and squeeze the outer circumference of the steel drill 71, thereby obtaining friction. Due to the lever effect, the arc panel 734 is The greater the pressure, the greater the clamping force of the ring 733 on the steel drill 71, and the Velcro or rubber band 738 is tightened on the lower part of the arc panel 734 to maintain the clamping force of the buckle 73 on the steel drill 71; then the steel mesh 8 is placed on each buckle 73, and its transverse rib 81 is embedded in the groove 737. At this time, the self-weight of the steel mesh 8 can exert a great pressure on the arc panel 734, so the ring 733 has enough clamping force on the steel drill 71; at this time, the Velcro can be untied or the rubber band can be cut;

[0054] The steel bar 71 is lowered together with the steel mesh 8 into the groove filled with concrete. After a period of time, when the concrete begins to solidify, the soluble pin 736 serving as the rotating shaft has also dissolved or softened due to water absorption, the left clamping body 731 and the right clamping body 732 are unhinged, and the clamping force (friction force) formed by the lever of the holding ring 733 is significantly reduced or disappears. The steel bar 71 can be smoothly pulled out by pulling it outward. During this process of pulling out, the pulling force on the buckle 73 is small, and the buckle 73 will not be displaced, so the internal structure of the solidifying concrete will not be damaged.

[0055] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An AAC plate intermediate blocking device, comprising a frame (2) connected to a saddle frame seat (1); L-shaped plates (3) are respectively arranged above both ends of the frame (2); the long side (31) of the L-shaped plate (3) is parallel to the frame (2) and fixedly connected by bolts (33); the short side (32) of the L-shaped plate (3) is threadedly connected to a hand screw (34); the frame (2) and the saddle frame seat (1) are fastened by the hand screw (34); Features: A row of blocking steel chisels (4) arranged along the length direction of the frame (2) is provided between the two L-shaped plates (3); the lower part of each blocking steel chisel (4) passes through the frame (2); the upper part of each blocking steel chisel (4) is connected to the frame (2) through a T-shaped gasket (41); and a flat portion (42) is provided at the lower part; the narrow side of the flat portion (42) faces the straight line direction of the connecting blocking steel chisels (4); a limiting strip (5) is also provided between the two L-shaped plates (3) along the length direction of the frame (2); when the limiting strip (5) is fastened to the frame (2) by a self-tapping screw (51), the T-shaped gaskets (41) placed between the limiting strip (5) and the frame (2) are pressed against the frame (2) by the limiting strip (5).

2. The AAC sheet middle blocking device according to claim 1, Features: The distance between adjacent blocking steel chisels (4) is 2.5 cm to 3 cm.

3. The AAC sheet middle blocking device according to claim 1, Features: The frame (2) is perpendicular to the long beam (11) of the saddle frame seat (1); the long side (31) of each L-shaped plate (3) is mounted on the long beam (11), and the short side (32) of each L-shaped plate (3) is placed on the side of the adjacent long beam (11) away from the frame (2); a threaded through hole (35) is provided in the middle of the short side (32), and a hand-tightened screw (34) matched therewith is sleeved in the threaded through hole (35), and the hand-tightened screw (34) is perpendicular to the saddle frame seat (1).

4. The AAC sheet middle blocking device according to claim 1, Features: The frame (2) is provided with through holes (21) corresponding to the positions of a row of the blocking steel chisels (4) along its length direction; a T-shaped gasket (41) is sleeved on the upper periphery of each of the blocking steel chisels (4), the head of the T-shaped gasket (41) is welded to the blocking steel chisel (4), and the rod of the T-shaped gasket (41) is sleeved in the through hole (21) adjacent thereto.

5. The AAC sheet middle blocking device according to claim 1, Features: The self-tapping screw (51) passes through the limit strip (5) and is locked with the frame (2); when the limit strip (5) is locked with the frame (2), the flat portion (42) at the bottom of each blocking steel chisel (4) is placed on the same vertical plane.

6. The AAC sheet middle blocking device according to claim 1, Features: Rib plates (6) perpendicular to the long side (31) of each L-shaped plate (3) are respectively arranged on both sides thereof, and the bottom of the rib plate (6) is welded to the adjacent long beam (11).

7. The AAC sheet middle blocking device according to claim 1, Features: The bolts (33) are sequentially passed through the frame (2) and the adjacent long sides (31) and then locked with nuts (36).

8. An AAC sheet middle blocking device according to any one of claims 1 to 7, Features: At least two saddle rack groups (7) are fixedly connected to the saddle rack seat (1), and each saddle rack group (7) includes at least two saddle racks (72); the blocking device is arranged between the two saddle rack groups (7); a plurality of steel chisels (71) are arranged vertically in a row on the saddle rack (72); the steel chisels (71) are used to set up and lift the steel mesh (8) through a buckle (73); the buckle (73) includes a left clamp body (731) and a right clamp body (732); the left The card body (731) and the right card body (732) respectively comprise an embracing ring (733), a vertically arranged arc panel (734) and a cross arm (735); the lower end of the embracing ring (733) is fixedly connected with the upper end of the arc panel (734); the embracing ring (733) is arranged obliquely so that the steel drill (71) passes through the embracing ring (733); the embracing ring (733) is elliptical, but its projection in the vertical direction is a circle with a diameter slightly larger than the diameter of the steel drill (71) The left card body (731) and the right card body (732) have a ring (733) cross-embracing the steel bar (71); the inner wall of the middle part of the arc panel (734) is provided with an inwardly sunken arc surface groove (739); the steel bar (71) is a hollow tubular structure with a closed bottom or a pointed portion; corresponding to the position of the arc surface groove (739), the steel bar (71) tube wall is respectively provided with small holes (711); the small holes (711) are correspondingly provided with a Ru Rupert's Tear (730); the round head of the Rupert's Tear (730) is located outside the small hole (711) and is embedded in the arc groove (739), serving as a rotation fulcrum for the left card body (731) and the right card body (732); the slender tail of the Rupert's Tear (730) passes through the small hole (711) and extends into the hollow space inside the steel chisel (71); the diameter of the small hole (711) is roughly half the diameter of the round head of the Rupert's Tear (730).

9. The AAC sheet middle blocking device according to claim 8, Features: One end of the cross arm (735) is fixed to the lower part of the curved panel (734), and the other end extends outward laterally; the other end of the cross arm (735) is provided with an upward bridging groove (737) for bridging the transverse reinforcement (81) of the steel mesh (8).

10. The AAC sheet middle blocking device according to claim 9, Features: During installation, after the left card body (731) and the right card body (732) clamp the steel bar (71) on the left and right sides, they are stretched on the arc panel (734) below the cross arm (735) through a Velcro or rubber band (738); the holding ring (733) and the arc panel (734) are integrally formed and made of plastic or metal.