CN214785352U - Cast-in-place reinforced concrete pouring protective layer thickness control device - Google Patents
Cast-in-place reinforced concrete pouring protective layer thickness control device Download PDFInfo
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- CN214785352U CN214785352U CN202120437289.9U CN202120437289U CN214785352U CN 214785352 U CN214785352 U CN 214785352U CN 202120437289 U CN202120437289 U CN 202120437289U CN 214785352 U CN214785352 U CN 214785352U
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Abstract
The utility model relates to the technical field of building construction, in particular to a cast-in-place reinforced concrete pouring protective layer thickness control device, which controls a reinforced concrete plate surface at a proper thickness position under the action of a supporting groove, so that the thickness of the cast-in-place reinforced concrete pouring protective layer is effectively controlled, and the reinforcing steel bar is prevented from sliding or rolling on the thickness control device in the concrete pouring process, the stability of the reinforcing steel bar laying position in the pouring process is improved, and the stress uniformity is improved; meanwhile, through the arrangement of the filling holes and the slurry leakage holes, concrete slurry can enter the thickness control device for forming, and the defect that the joint of concrete and an interface is fragile and the overall strength of the concrete at the position where the thickness control device is arranged is low due to the fact that a cavity is formed at the position where the thickness control device is located or the manufacturing material is plastic and the like is avoided; the strength of the concrete slab surface after pouring is improved.
Description
Technical Field
The utility model belongs to the technical field of the construction technology and specifically relates to cast-in-place reinforced concrete pouring protective layer thickness controlling means.
Background
In the existing building and bridge engineering, when the thickness of a protective layer of a reinforced concrete structure or a prestressed concrete structure is controlled, a cushion block is often adopted to be bundled with a reinforcing steel bar, so that the thickness of the protective layer is controlled, and the reinforcing steel bar is protected from being corroded. At present, the cushion block for controlling the thickness of the adopted protective layer is mainly concrete and waste marble, but in the actual use process, the expected technical effect cannot be achieved, and the cushion block mainly exists: firstly, the strength of the concrete cushion block does not reach the standard, the concrete cushion block is easy to break during construction, and the point contact surface of the concrete cushion block and the steel bar is about 0.5cm, so that the displacement is easy to cause, and the steel bar is exposed; secondly, the waste marble is used as a cushion block, and the shape of the cushion block is irregular, so that the waste marble is easy to displace to expose the reinforcing steel bars.
Therefore, in order to overcome the above technical drawbacks, researchers have conducted studies on protective layer thickness control devices, such as: a cast-in-place reinforced concrete floor slab protective layer thickness construction control device with the patent number of CN201520653723.1 is composed of a cross bar framework and support frames, wherein two plate-shaped support frames are erected along the length direction at two lower edges of the rectangular cross bar framework to form a whole, a plurality of arch-shaped concrete grout filling semicircular holes are arranged along the length direction at the lower surfaces of the support frames, and a cast concrete groove is formed between the two support frames; the top surface of the cross bar framework is a steel bar placing surface and is made of high-density polyethylene plastics; for another example: the patent number is CN 201420480470.8's cast-in-place floor reinforced concrete protective layer thickness construction controlling means adopts horizontal pole skeleton, support frame and plastic sheath to constitute, and the segmentation welds U type support frame below the center of horizontal pole skeleton, and has overhanging stabilizer blade bottom in U type support frame both sides, suit plastic sheath on the stabilizer blade, and the horizontal pole skeleton adopts the preparation of cold drawing reinforcing bar, and U type support frame adopts the bending of cold drawing reinforcing bar to make the shaping. Therefore, the defects of the traditional concrete cushion block and the waste marble cushion block are overcome by the prior art. However, the following technical problems still exist: firstly, the surface of the plastic is hydrophobic and is not mutually soaked with the cementing material, so that the interface joint of the concrete and the surface of the plastic is fragile, and the structural strength of the reinforced concrete is influenced; secondly, the compressive strength of the plastic is poor, and when the reinforced concrete is poured, constructors frequently walk, have no feet and are difficult to avoid being greatly trodden, particularly in the process of cast-in-place vibration compaction of cast-in-place reinforced concrete, the relative positions of the steel bars and the thickness control device are often correct, but the situation is changed once the reinforced concrete is poured by vibration, so that the steel bars are bent and deformed, and the thickness of a protective layer is difficult to ensure; thirdly, local cracks of the cast-in-place reinforced concrete are formed on the plate along the longitudinal direction of the reinforced protective layer, water permeates into the reinforced steel bars and the welded U-shaped support frame along the cracks, and the welded U-shaped support frame extends to the bottom of the plate, so that a flow guide bridge effect is formed between the upper part and the lower part of the cast-in-place reinforced concrete plate, rust spots are caused, and the integral stress tolerance of the cast-in-place reinforced concrete is influenced; and fourthly, the surface of the steel bar is directly placed at the top of the cross bar framework, so that the cushion block is easy to slide or move, the construction accuracy is affected, and the thickness of the protective layer is difficult to control well when the reinforced concrete column is poured.
Due to the technical problems, the stress of the steel bars in the cast-in-place reinforced concrete is unbalanced, so that the bearing capacity limit and the durability are poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem existing in the prior art, the utility model provides a cast-in-place reinforced concrete pours protective layer thickness controlling means.
The method is realized by the following technical scheme:
cast in situ reinforced concrete pours protective layer thickness controlling means includes: the support frame and the horizontal plate are assembled into an inverted U-shaped whole; the supporting frame is provided with a plurality of filling holes along the length direction, the horizontal plate is provided with supporting grooves along the width direction, and slurry leaking holes are formed between every two adjacent supporting grooves.
The surface of the reinforcing steel bar is controlled at a proper thickness position under the action of the supporting groove, so that the thickness of a cast-in-place reinforced concrete pouring protective layer is effectively controlled, the reinforcing steel bar is prevented from sliding or rolling on the thickness control device in the concrete pouring process, the stability of the laying position of the reinforcing steel bar in the pouring process is improved, and the stress uniformity is improved; meanwhile, through the arrangement of the filling holes and the slurry leakage holes, concrete slurry can enter the thickness control device for forming, and the defect that the joint of concrete and an interface is fragile and the overall strength of the concrete at the position where the thickness control device is arranged is low due to the fact that a cavity is formed at the position where the thickness control device is located or the manufacturing material is plastic and the like is avoided; the strength of the concrete slab surface after pouring is improved.
In order to enhance the filling compactness of the concrete to the inside of the thickness control device and improve the uniformity of the arrangement of the reinforcing steel bars, preferably, a plurality of micropores are arranged in the supporting groove; and/or the supporting grooves, wherein the interval between every two adjacent supporting grooves is 30-80 cm.
In order to fully fill the inside of the thickness control device and improve filling compactness, the slurry leaking hole is preferably positioned right in the middle of two adjacent supporting grooves.
In order to make the concrete more easily flow into the thickness control device, the filling hole is preferably in a circular arc shape; and/or the distance between the bottom ends of the support frames of two adjacent filling holes is 0.5-5 cm. More preferably, the bottom end of the supporting groove penetrates the lower surface of the horizontal plate.
In order to adjust the height of the top end of the horizontal plate, further adjust the height position of the reinforcing steel bar plate formed by the tie bars and adjust the thickness of the concrete protective layer, preferably, hanging columns are respectively arranged at the left end and the right end of the horizontal plate; the top end of the support frame is provided with two support baffles, the two support frames are positioned on the opposite side surfaces of the support frame, and a stand is arranged on the opposite side of each support baffle; hang the bottom of post with be equipped with adjusting part between the top of pallet, adjusting part is used for adjusting hang the bottom of post with interval between the top of pallet.
In order to enhance the bearing strength of the concrete filling block in the thickness control device and improve the bearing capacity of the thickness control device, avoid the trampling of the thickness control device in the process of arranging the reinforcing steel bars and improve the stability, preferably, the supporting frames are provided with a plurality of reinforcing ribs on the opposite surfaces of the two supporting frames; and/or a filling groove is arranged at the bottom end of the support frame along the length direction, and the filling groove and the filling hole are mutually crossed.
In order to simplify the structure of the adjusting assembly and facilitate the adjustment of a spanner and the like in the construction process, preferably, the adjusting assembly comprises an adjusting groove positioned at the bottom end of the hanging column, and a bearing is arranged in the adjusting groove; the bearing is close to the bottom end of the adjusting groove; a sleeve is arranged in the bearing, and a nut is integrally formed at the bottom end of the sleeve; a screw rod is integrally formed on the upper surface of the stand, and the screw rod is matched with the screw cap; the top end of the screw rod can freely slide in the sleeve and the adjusting groove.
When a researcher creates the novel support frame, the support frame is made of one of a steel plate and high-density polyethylene plastic; and/or the horizontal plate is made of one of a steel plate and high-density polyethylene plastic. Preferably, High Density Polyethylene (HDPE) is used to help reduce the weight of the thickness control device and facilitate removal by the operator.
The construction method for casting the thickness of the protective layer by cast-in-place reinforced concrete comprises the following steps:
(1) according to construction requirements, the reinforcing steel bars are tied firmly to obtain a reinforcing steel bar panel;
(2) forming a plurality of filling holes in the bottom end of the support frame; arranging a plurality of supporting grooves on the top of the horizontal plate along the width direction;
(3) will the support frame with the horizontal plate assembles the whole of "U" form, arranges the reinforcing bar panel bottom in, and will follow the reinforcing bar that horizontal plate width direction arranged is arranged in support the recess, pour the concrete, can.
Compared with the prior art, the invention has the technical effects that:
the invention has simple structure and small volume, avoids the occurrence of a concrete pouring cavity at the position using the thickness control device, improves the integral strength after concrete pouring, has wide control application range of the thickness of the concrete pouring protective layer, and can adjust the set position as required at any time; and can also avoid the reinforcing bar to take place to slide or remove at thickness control device top surface, lead to the reinforcing bar to shift, influence the atress homogeneity of reinforcing bar face, improve stability.
The thickness control device created by the invention can be used on the basis of not changing the original construction method and working procedures, the use method is simple, convenient and visual, the device can be operated by common construction workers, the whole surface of the steel bar is ensured to be in a flat state, the laying position of the steel bar is stable, and the rolling and sliding are not easy to occur in the early pouring process.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the invention.
Fig. 2 is a schematic structural diagram in the direction indicated by the arrow in fig. 1.
Fig. 3 is a schematic top view of the structure of fig. 1.
Fig. 4 is a schematic sectional view of fig. 3A-a.
Fig. 5 is a schematic structural diagram of another embodiment of fig. 4.
Fig. 6 is a schematic structural diagram of another embodiment of the present invention.
Fig. 7 is a schematic bottom view of fig. 6.
Fig. 8 is a partially enlarged schematic view of fig. 6.
Fig. 9 is a schematic structural view of a thickness control device in a use state.
1-horizontal plate 2-support frame 3-filling hole 4-support groove 5-slurry leakage hole 6-micropore
7-hanging column 8-adjusting component 9-reinforcing steel bar plate surface 2.1-filling groove 2.2-frame baffle plate 2.3-stand
2.4-reinforcing rib 8.1-screw 8.2-nut 8.3-sleeve 8.4-bearing 8.5-regulating groove.
Detailed Description
The technical solution of the present invention is further defined in the following description with reference to the accompanying drawings and the specific embodiments, but the scope of protection is not limited to the description.
As shown in fig. 1 and fig. 2, in this embodiment, in order to solve the problem that the steel bar plate surface existing in the prior art is easy to slide in the pouring process, the position of laying the steel bar in advance is changed, the whole stress performance of the plate surface is affected, and meanwhile, after the steel bar plate surface is supported by adopting the traditional thickness control device, the amount of concrete poured into the thickness control device is low, even the thickness control device is not closely attached to the concrete interface, the hollow phenomenon of the poured concrete plate surface is caused, and the whole endurance strength of the concrete protective layer is affected: cast in situ reinforced concrete pours protective layer thickness controlling means includes: the steel bar supporting device comprises a horizontal plate 1 for supporting steel bars and a supporting frame 2 for supporting the horizontal plate 1, wherein the supporting frame 2 and the horizontal plate 1 are assembled into an inverted U-shaped whole; the supporting frame 2 is provided with a plurality of filling holes 3 along the length direction, the horizontal plate 1 is provided with supporting grooves 4 along the width direction, and two adjacent supporting grooves 4 are provided with slurry leaking holes 5. The support frame 2 and the horizontal plate 1 are assembled into an inverted U-shaped whole, so that the thickness control device is lightened, and the phenomenon that the concrete cavity is serious due to the fact that the thickness control device occupies a large plate surface volume is avoided; the supporting grooves 4 are formed in the upper surface of the horizontal plate 1 in the width direction, so that when the surface of a steel bar is laid, the steel bar laid in the width direction of the horizontal plate 1 is placed in the supporting grooves 4, the steel bar is effectively prevented from sliding or rolling between the tops of the thickness control devices, the stability is enhanced, and after concrete is poured, a concrete column is formed in the supporting grooves 4, so that the wrapping of the steel bar in the supporting grooves 4 is improved, the defect that the steel bar is rusted and corroded due to poor wrapping effect is avoided, the integral endurance and the bearing performance of a concrete pouring protective layer are improved, and the stability is improved; and the arrangement of the filling holes 3 and the slurry leakage holes 5 is utilized, so that the concrete can enter the thickness control device from the side edge and the top of the thickness control device, after the concrete is poured, the concrete in the thickness control device can be tightly and integrally formed with the concrete outside the thickness control device, and the compactness of a concrete structure in the thickness control device is improved.
As shown in fig. 3, on the basis of fig. 1 and fig. 2, in this embodiment, a plurality of micropores 6 are provided in the supporting groove 4; the efficiency of concrete grout leaking into the inside of the thickness control device and the distribution uniformity of concrete grout entering the inside of the thickness control device are increased.
In this embodiment, as shown in fig. 1 and 2 and/or fig. 3, the supporting grooves 4 are spaced apart from each other by 30-80 cm. According to needs, realize the even of reinforcing bar, accurate laying realizes predetermineeing the shaping.
In this embodiment, the slurry leaking hole 5 is located at the middle of two adjacent supporting grooves 4. The concrete grout flows into the thickness control device, the uniform dispersion of the concrete grout is realized, the distribution of the concrete inside the thickness control device is uniform, and the filling is dense.
As shown in fig. 1, 4 and 5, in this embodiment, in order to make the concrete flow into the thickness control device, achieve uniform dispersion flow, and improve the compactness of concrete filling in the thickness control device, the filling hole 3 is preferably in a circular arc shape; in the embodiment, in order to ensure the strength bearing strength of the thickness control device, avoid the trampling phenomenon, ensure that the stress on the thickness control device is dispersed, and improve the overall strength of the device, the distance between the bottom ends of the support frame 2 of the two adjacent filling holes 3 of the filling holes 3 is 0.5-5 cm. Simultaneously this size has also ensured that the concrete evenly flows into thickness control device inside, the closely knit nature of guarantee packing.
In this embodiment, as shown in fig. 5, in order to ensure that the amount of concrete flowing into the thickness control device is more uniformly and sufficiently distributed, and also to achieve concrete wrapping of the reinforcing steel bars placed in the supporting grooves 4 to prevent the reinforcing steel bars from being corroded, the bottom ends of the supporting grooves 4 penetrate through the lower surface of the horizontal plate 1.
As shown in fig. 1, 6 and 7, in this embodiment, in order to facilitate the adjustment of the height distance between the steel bar plate surface and the bottom of the support frame 2, hanging columns 7 are respectively arranged at the left and right ends of the horizontal plate 1; the top end of the support frame 2 is provided with two frame baffles 2, the frame baffles 2 are positioned on the opposite side surfaces of the support frame 2, and a stand 2.3 is arranged on the opposite side of the frame baffles 2; hang the bottom of post 7 with be equipped with adjusting part 8 between the top of pallet 2.3, adjusting part 8 is used for adjusting hang the bottom of post 7 with interval between the top of pallet 2.3. Make when needs set up concrete cover thickness thicker, adopt tools such as spanner, adjust adjusting part 8 for the interval increases between hanging post 7 and the pallet 2.3, reaches the distance between adjusting reinforcement face and the 2 bottoms of support frame, reaches the purpose of adjustment concrete cover thickness.
As shown in fig. 1, 6 and 7, in this embodiment, in order to reduce the occupied volume of the material of the thickness control device in the concrete layer formed by casting and ensure the overall strength of the thickness control device, a plurality of reinforcing ribs 2.4 are arranged on the opposite surfaces of the two support frames 2 of the support frame 2; and/or a filling groove 2.1 is arranged at the bottom end of the support frame 2 along the length direction, and the filling groove 2.1 and the filling hole 3 are mutually crossed. The concrete casting forming structure layer is formed by wrapping a concrete net rack at the position where the thickness control device is arranged, the integrity of the concrete protective layer is enhanced, and the bearing strength of the concrete protective layer is improved.
As shown in fig. 1, 6 and 8, in this embodiment, the adjusting assembly 8 includes an adjusting groove 8.5 at the bottom end of the hanging column 7, and a bearing 8.4 is arranged in the adjusting groove 8.5; the bearing 8.4 is close to the bottom end of the adjusting groove 8.5; a sleeve 8.3 is arranged in the bearing 8.4, and a nut 8.2 is integrally formed at the bottom end of the sleeve 8.3; a screw 8.1 is integrally formed on the upper surface of the stand 2.3, and the screw 8.1 is matched with the screw cap 8.2; the top end of the screw 8.1 is able to slide freely inside the sleeve 8.3 and the adjustment groove 8.5. When the concrete protective layer is used, a wrench or other tools are adopted to twist and rotate the nut 8.2, so that under the action of the bearing 8.4, the sleeve 8.3 is rotated to be arranged on the screw rod 8.1, and the hanging column 7 is pulled towards the stand 2.3 or pushed towards the direction far away from the stand 2.3 through the interaction of the threads on the screw rod 8.1 and the threads in the nut 8.2, so that the height of the horizontal plate 1 is adjusted, the distance between the steel bar plate surface and the bottom of the support frame 2 is adjusted, and the thickness of the concrete protective layer is adjusted; meanwhile, the integral stability of the thickness control device can be guaranteed, the steel bars are prevented from sliding or rolling, and treading can be avoided; the overall stability of the thickness control device is improved, and the adjusting efficiency and effect of the thickness control device are improved.
In the preparation process, a researcher provided by the invention manufactures the support frame 2 by adopting one of a steel plate and high-density polyethylene plastics; the horizontal plate 1 is made of one of a steel plate and high-density polyethylene plastic.
In the using process of the cast-in-place reinforced concrete pouring protective layer thickness control device shown in fig. 1-8, the construction method comprises the following steps:
(1) according to construction requirements, the reinforcing steel bars are tied firmly to obtain a reinforcing steel bar panel;
(2) forming a plurality of filling holes in the bottom end of the support frame; arranging a supporting groove on the top of the horizontal plate along the width direction;
(3) will the support frame with the horizontal plate assembles the whole of "U" form, arranges the reinforcing bar panel bottom in, and will follow the reinforcing bar that horizontal plate width direction arranged is arranged in support the recess, pour the concrete, can.
The reinforcing steel bar plate surface can be effectively supported on the thickness control device, the reinforcing steel bar plate surface is prevented from sliding on the top of the thickness control device, the preset position of the reinforcing steel bar plate surface is stabilized, meanwhile, the overall stability of the thickness control device in the use process is improved, and the trampling in the concrete pouring process is avoided; the concrete can flow into the thickness control device in the concrete pouring process, the concrete is uniformly distributed in the thickness control device, and the concrete filling compactness in the thickness control device is improved; and the fluidity of the concrete slurry can be fully utilized and the effect of the fluidity is combined, so that the uniform dispersion in the thickness control device is realized, and the integral stress strength of the concrete protective layer is enhanced.
This researcher adopts different structural design to thickness control device at the research in-process to after concreting the concrete protective layer, test the inside concrete porosity condition of thickness control device, reachd: compared with a structure without the slurry leakage holes 5, the structure with the slurry leakage holes 5 arranged between the adjacent supporting grooves 4 is reduced by about 30 percent, and the measurement results show that: the concrete protective layer obtained in the using process of the thickness control device with the structure that the slurry leaking holes 5 are arranged between the adjacent supporting grooves 4 has the porosity of 0.7 percent in the thickness control device. Secondly, a plurality of micropores 6 are arranged in the supporting grooves 4, a slurry leaking hole 5 is arranged between the adjacent supporting grooves 4, when the pore diameter of each micropore is 0.5mm, after concrete is poured, the porosity inside the thickness control device is reduced to about 0.48%, and compared with the structure without the micropores 6, the porosity is reduced by about 31%.
In addition, the researchers also carry out the compression strength test of the thickness control device provided with the slurry leakage hole 5, the thickness control device not provided with the slurry leakage hole 5 and the micropore 6, and the results show that the compression pressure differences of the three structures are not large, and the weight difference born by the three structures is less than 0.8kg until the thickness control device is collapsed.
Therefore, the arrangement of the slurry leakage holes 5 and the micropores 6 has little influence on the overall pressure resistance of the thickness control device; however, the compactness of the concrete structure inside the thickness control device is much higher, namely: the researchers adopt the structural arrangement of the supporting groove 4, so that the sliding of the surface of the reinforcing steel bar is avoided, and the stability is improved; the design of the slurry leakage holes 5 and/or the micropores 6 is combined, the concrete mortar is enhanced to flow into the thickness control device, the concrete cavity phenomenon at the arrangement position of the thickness control device is prevented, the compactness is improved, the whole compressive strength of a concrete protective layer is enhanced, and the stress performance is enhanced. Particularly, the porosity is reduced, the steel bar exposure rate at the position of the thickness control device can be fully reduced, the steel bar is prevented from contacting with water drops and air, and the corrosion rate of the steel bar is reduced.
The present invention can be implemented by referring to the prior art or the common general knowledge and the conventional technical means known to those skilled in the art.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (9)
1. The utility model provides a cast-in-place reinforced concrete pouring protective layer thickness controlling means, includes: the steel bar supporting device comprises a horizontal plate (1) for supporting steel bars and a supporting frame (2) for supporting the horizontal plate (1), wherein the supporting frame (2) and the horizontal plate (1) are assembled into an n-shaped whole; the novel mortar filling device is characterized in that a plurality of filling holes (3) are formed in the support frame (2) along the length direction, supporting grooves (4) are formed in the horizontal plate (1) along the width direction, and mortar leaking holes (5) are formed between every two adjacent supporting grooves (4).
2. The cast-in-place reinforced concrete casting protective layer thickness control device according to claim 1, wherein a plurality of micropores (6) are formed in the supporting groove (4); and/or the supporting grooves (4), and the interval between every two adjacent supporting grooves (4) is 30-80 cm.
3. The cast-in-place reinforced concrete casting protective layer thickness control device according to claim 1, wherein the grout leaking hole (5) is positioned right in the middle of two adjacent supporting grooves (4).
4. The cast-in-place reinforced concrete casting protective layer thickness control device according to claim 1, wherein the filling hole (3) is arc-shaped; and/or the filling holes (3), wherein the distance between the two adjacent filling holes (3) at the bottom end of the support frame (2) is 0.5-5 cm.
5. A cast-in-place reinforced concrete casting protective layer thickness control apparatus as claimed in claim 1 or 2, wherein said support groove (4) has a bottom end penetrating through a lower surface of said horizontal plate (1).
6. The cast-in-place reinforced concrete pouring protective layer thickness control device according to claim 1, wherein hanging columns (7) are respectively arranged at the left end and the right end of the horizontal plate (1); the top end of the support frame (2) is provided with two frame baffles (2.2), the frame baffles (2.2) are positioned on the opposite side surfaces of the support frame (2), and a stand (2.3) is arranged on the opposite side of the frame baffles (2.2); hang the bottom of post (7) with be equipped with adjusting part (8) between the top of pallet (2.3), adjusting part (8) are used for adjusting the bottom of hanging post (7) with interval between the top of pallet (2.3).
7. The cast-in-place reinforced concrete pouring protective layer thickness control device according to claim 6, characterized in that the support frames (2) are provided with a plurality of reinforcing ribs (2.4) on the opposite surfaces of the two support frames (2); and/or a filling groove (2.1) is formed in the bottom end of the support frame (2) along the length direction, and the filling groove (2.1) and the filling hole (3) are mutually crossed.
8. A cast-in-place reinforced concrete pouring protective layer thickness control device as claimed in claim 6, characterized in that said adjusting assembly (8) comprises an adjusting groove (8.5) at the bottom end of said hanging column (7), and a bearing (8.4) is arranged in said adjusting groove (8.5); the bearing (8.4) is close to the bottom end of the adjusting groove (8.5); a sleeve (8.3) is arranged in the bearing (8.4), and a nut (8.2) is integrally formed at the bottom end of the sleeve (8.3); a screw rod (8.1) is integrally formed on the upper surface of the stand (2.3), and the screw rod (8.1) is matched with the screw cap (8.2); the top end of the screw (8.1) can slide freely in the sleeve (8.3) and the adjusting groove (8.5).
9. The cast-in-place reinforced concrete pouring protective layer thickness control device as claimed in claim 1, wherein the support frame (2) is made of one of steel plate and high-density polyethylene plastic; and/or the horizontal plate (1) is made of one of a steel plate and high-density polyethylene plastic.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116971510A (en) * | 2023-09-19 | 2023-10-31 | 山西二建集团有限公司 | Assembled wall, auxiliary assembly part and construction mode |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116971510A (en) * | 2023-09-19 | 2023-10-31 | 山西二建集团有限公司 | Assembled wall, auxiliary assembly part and construction mode |
| CN116971510B (en) * | 2023-09-19 | 2023-12-15 | 山西二建集团有限公司 | Assembled wall, auxiliary assembly part and construction mode |
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