Basement post-cast strip system and preparation method thereof

Abstract

The basement post-cast strip system and the preparation method thereof are disclosed, and particularly relate to the field of basement post-cast strip, which comprises a base, a post-cast strip assembly, a steel mesh frame, a concrete layer and a wood square. The post-cast strip assembly is arranged on the base. The first spring drives the clamping sleeve to self-adaptively clamp the steel mesh frame, to form a mechanical locking structure, which has strong anti-construction collision capability, avoids the risk of displacement and sliding, prevents construction debris from falling into the groove, reduces the subsequent cleaning workload, facilitates subsequent secondary pouring, and simultaneously avoids the risk of personnel falling into the groove due to the easy sliding of the traditional cover plate. Therefore, the sealing cover plate is made of steel plate material, which is stable and reliable in structure and fixed. Meanwhile, the sealing cover plate covers the entire post-cast strip groove, to form a safety protection barrier. The sealing mechanism is designed to be detachable. When installed, no complex tools are needed, and the clamping and fixing can be completed by relying on the self-weight. When disassembled, only tools are needed to pull the cover plate, to release the fixing of the clamping sleeve and the steel mesh frame, which is suitable for the rapid operation requirement of the construction site.

Description

Technical Field

[0001] This invention relates to the field of post-cast strip technology for basements, and more specifically, to a basement post-cast strip system and its preparation method. Background Technology

[0002] During the hydration and hardening process, concrete undergoes volume shrinkage (plastic shrinkage, drying shrinkage, carbonation shrinkage), and changes in ambient temperature cause thermal expansion and contraction. Basement structures are large in volume (massive concrete), and shrinkage and temperature deformation can easily generate tensile stress within them. At the same time, basements are located below the groundwater level (or in areas affected by groundwater), making waterproofing a core functional requirement. Joints and construction joints in concrete structures are natural weak points in waterproofing, and if not properly treated, they can easily become seepage channels. Cracks after the pouring of large-volume concrete further exacerbate the risk of waterproofing failure. Traditional simple treatments for construction joints (such as pre-embedded waterstops) cannot meet the requirements of high-level waterproofing basements. With advancements in concrete material technology (such as the development of shrinkage-compensating concrete) and structural mechanics analysis techniques, engineers have proposed the concept of "post-pouring strips": the structure is poured in sections, reserving a post-pouring strip area of ​​a certain width. After the main structure has undergone a certain amount of shrinkage (usually 2-4 weeks) or settlement has stabilized (usually 6-12 months), high-grade shrinkage-compensating concrete is used to pour the post-pouring strip, making the structure a whole.

[0003] Traditional temporary sealing covers are mostly simple covering structures, usually made of plywood, steel plates, or plastic sheets, with warning lines painted on the surface. Their size is roughly matched to the opening of the post-pouring strip, serving as a basic shielding component. To improve the sealing effect, bricks or wires are manually placed on the edge of the cover and simply tied to the surrounding components of the opening. However, in actual use, traditional covers are simply placed on top of the opening and positioned solely by their own weight or temporary weights. Construction site environments are complex and susceptible to displacement or slippage due to construction collisions, wind, and people stepping on them. This makes it impossible to maintain a long-term seal, thus failing to prevent dust, sand, construction wastewater, and other debris from falling into the post-pouring strip, increasing the difficulty of subsequent cleaning. Furthermore, displacement or slippage of the cover may cause people to fall into the post-pouring strip, posing a safety hazard. Summary of the Invention

[0004] The basement post-pouring strip system and its preparation method provided by this invention aim to solve the following problems: Traditional temporary sealing covers are simple covering structures that rely on their own weight or heavy objects and wires for simple fixation. They are easily displaced and slipped due to external forces such as construction collisions. They cannot provide long-term sealing, which leads to debris entering the trench and increasing the difficulty of cleaning. They also pose a safety hazard of people falling in.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a basement post-cast strip system and its preparation method, comprising a base, a post-cast strip assembly, a steel mesh frame, a concrete layer, and timber. The post-cast strip assembly is disposed on the base, the steel mesh frame is disposed on the post-cast strip assembly, the concrete layer is disposed on the steel mesh frame, and the timber is disposed on the upper surface of the steel mesh frame.

[0006] It also includes a sealing mechanism installed on the timber. The sealing mechanism includes a sealing cover plate, a support, a first spring, and a sleeve. The sealing cover plate is installed on the timber, the support is fixedly connected to the lower surface of the sealing cover plate, the sleeve is rotatably connected to the lower surface of the support, and the first spring is fixedly connected between the sleeve and the support.

[0007] In a preferred embodiment, the post-cast strip assembly further includes a cushion layer, a waterproof layer, a waterstop, a water-stop caulking material, a concrete base layer, a concrete block, a wire mesh frame, and a water-stop steel plate. The cushion layer is laid on the upper surface of the base, the waterproof layer is laid on the upper surface of the cushion layer, the waterstop is laid on the upper surface of the waterproof layer, the water-stop caulking material is laid on the upper surface of the waterstop, the concrete base layer is poured on the upper surface of the waterproof layer and the waterstop, the concrete block is poured on the upper surface of the concrete base layer, the wire mesh frame is fixedly welded to the reinforcing mesh frame, and the water-stop steel plate is welded to the wire mesh frame.

[0008] In a preferred embodiment, the sealing cover includes an inner end cover and an outer end cover, with the inner end cover placed on a wooden block and the outer end cover slidably disposed on the upper surface of the inner end cover.

[0009] In a preferred embodiment, a strip groove is formed on the upper surface of the inner end cap along the length direction of the post-cast strip groove, and a slider matching the groove is provided on the lower surface of the outer end cap, so that the outer end cap can slide along the groove along the length direction of the post-cast strip. The inner end cap includes a drainage groove, which is formed on the upper surface of the inner end cap.

[0010] In a preferred embodiment, the device further includes a stop bar and a second spring, the stop bar being slidably disposed on the inner end cover, and the second spring being fixedly disposed between the stop bar and the inner end cover.

[0011] In a preferred embodiment, the outer end cap includes a first reset groove formed on the lower surface of the outer end cap.

[0012] In a preferred embodiment, the inner end cover is provided with a mounting groove, the stop rod is slidably connected in the mounting groove, and the upper end face of the stop rod is provided with inclined surfaces on both sides, and the inclined surfaces provided at the upper end of the stop rod extend into the first reset groove. There are four sets of the first reset groove, the stop rod, and the second spring, and each set of the first reset groove, the stop rod, and the second spring is provided with two pairs, and the two pairs of the first reset groove, the stop rod, and the second spring are symmetrically distributed. The support is fixedly connected to the lower surface of the inner end cover.

[0013] In a preferred embodiment, the support further includes a sliding column, which is slidably connected inside the support.

[0014] In a preferred embodiment, the outer end cover further includes a second reset groove, which is formed on the lower surface of the outer end cover.

[0015] The method for preparing a basement post-cast strip system includes the following steps:

[0016] Step 1: Casting the base. The base is cast as a whole using foundation concrete, serving as the load-bearing foundation for the entire post-cast strip system.

[0017] Step 2: After construction, the bottom structure of the concrete strip component is constructed. On the upper surface of the base, a pad layer, a waterproof layer, a waterstop, and a water-stop caulking material are laid in sequence to ensure uniform coverage. At the same time, a set of steel mesh is laid, and the bottom layer of concrete is poured to cover the waterproof layer, the waterstop, and both sides of the water-stop caulking material, and allowed to solidify.

[0018] Step 3: Construct the upper structure of the pouring strip assembly after construction;

[0019] Step 4: Assemble the sealing mechanism and prepare the sealing cover plate;

[0020] Step 5: Install the sealing mechanism. Align the assembled sealing mechanism with the area enclosed by the wooden blocks, so that the sleeve corresponds to the target steel bar of the steel mesh. After the sleeve contacts the steel bar, it is compressed and unfolds. After the steel bar is fully inserted into the clamp, the first spring returns to its original position, thus completing the fixation between the steel bar and the sleeve.

[0021] Step Six: Remove the sealing mechanism. Push the outer end cover in the opposite direction to reset it. At this time, the stop bar returns to the first reset groove under the action of the second spring, releasing the lock on the jacket. Slightly lift the sealing cover plate: the steel bar presses the jacket to rotate, which synchronously drives the sliding column to slide and counteract the elastic force of the first spring, so that the jacket opens and the sealing cover plate can be removed.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. This invention uses a first spring to drive the clamping sleeve to adaptively clamp the rebar mesh, forming a mechanical locking structure. This structure has strong resistance to construction collisions, avoids the risk of displacement and slippage, prevents construction debris from falling into the trench, reduces subsequent cleaning workload, and facilitates subsequent secondary pouring. In addition, traditional cover plates are prone to slippage, posing a risk of personnel falling in. Therefore, the sealing cover plate is made of steel plate, which is structurally stable and reliably fixed. It also covers the entire post-pouring strip trench, forming a safety barrier. Furthermore, the sealing mechanism adopts a detachable design. During installation, no complicated tools are required; the clamping and fixing can be completed by relying on its own weight. During disassembly, only tools are needed to lift the cover plate to release the clamping sleeve from the rebar mesh, adapting to the rapid operation requirements of the construction site.

[0024] 2. This invention solves the problem of water leakage in the gaps of traditional multi-panel cover plates by using a dual design of overlapping sealing of the outer end cap and water collection in the leakage channel. It avoids debris entering the channel and steel corrosion, reduces the workload of subsequent cleaning and maintenance, and ensures the durability of the post-cast strip structure.

[0025] 3. The present invention, through the linkage design of the sliding column and the second reset groove, transforms the laborious dismantling that originally required tools to overcome the elastic force of the first spring into a convenient operation that can be completed by slight manual lifting, thereby reducing the labor intensity of workers. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the cross-sectional structure of the post-cast strip in the basement according to the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of the groove in the basement post-cast strip section of the present invention;

[0028] Figure 3 This is a schematic diagram of the cross-sectional skeleton structure of the basement post-cast strip according to the present invention;

[0029] Figure 4 This is a schematic cross-sectional view of the post-cast strip groove in the basement according to the present invention;

[0030] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0031] Figure 6 For the present invention Figure 4 Enlarged structural diagram at point B;

[0032] Figure 7 For the present invention Figure 4 Enlarged structural diagram at point C;

[0033] Figure 8 For the present invention Figure 2 Enlarged structural diagram at point D;

[0034] Figure 9 This is a schematic diagram of the mating structure of the inner end cap and the outer end cap of the present invention;

[0035] Figure 10 This is a cross-sectional structural diagram of the outer end cap, inner end cap, and support components of the present invention.

[0036] The attached figures are labeled as follows: 1. Base; 2. Post-cast strip assembly; 3. Sealing mechanism; 21. Pad layer; 22. Waterproof layer; 23. Waterstop strip; 24. Water-stop caulking material; 25. Reinforcing steel mesh; 26. Concrete base layer; 27. Concrete layer; 28. Concrete block; 281. Wire mesh frame; 282. Waterstop steel plate; 283. Timber; 30. Sealing cover plate; 31. Inner end cover; 311. Leakage groove; 32. Outer end cover; 321. First reset groove; 322. Second reset groove; 33. Support; 331. Sliding column; 332. First spring; 333. Jacket; 34. Stop bar; 341. Second spring. Detailed Implementation

[0037] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0038] Refer to the instruction manual appendix Figures 1-10 Traditional temporary sealing covers are simple covering structures that rely on their own weight or heavy objects and wires for simple fixation. They are easily displaced and slipped due to external forces such as construction collisions. They cannot provide long-term sealing, which leads to debris entering the trench and increases the difficulty of cleaning. They also pose a safety hazard of people falling in. This invention provides a basement post-pouring strip system and its preparation method, including a basement 1, a post-pouring strip component 2, a steel mesh frame 25, a concrete layer 27, and timber 283. The post-pouring strip component 2 is set on the basement 1, the steel mesh frame 25 is set on the post-pouring strip component 2, the concrete layer 27 is set on the steel mesh frame 25, and the timber 283 is set on the upper surface of the steel mesh frame 25.

[0039] It also includes a sealing mechanism 3 installed on the timber 283. The sealing mechanism 3 includes a sealing cover plate 30, a support 33, a first spring 332, and a sleeve 333. The sealing cover plate 30 is installed on the timber 283. The support 33 is fixedly connected to the lower surface of the sealing cover plate 30. The sleeve 333 is rotatably connected to the lower surface of the support 33. The first spring 332 is fixedly connected between the sleeve 333 and the support 33.

[0040] It should be added that, such as Figures 1 to 5The base 1 serves as the load-bearing foundation of the entire post-cast strip system and is integrally cast from foundation concrete. The post-cast strip component 2 is the core component for forming the post-cast strip groove. It has an overall annular groove structure and is set above the base 1. The steel mesh frame 25 has multiple sets, and each set is a three-dimensional mesh structure formed by welding longitudinal steel bars, transverse steel bars and vertical steel bars. The lower surface of the timber 283 and the transverse steel bars of the uppermost steel mesh frame 25 are fixed by wrapping with iron wire to form the boundary enclosure for the pouring of the concrete layer 27. The concrete layer 27 is made of micro-expansion impermeable concrete and covers the inside and outside of the groove enclosed by the post-cast strip component 2 and the outside of the steel mesh frame 25. The timber 283 is spliced ​​around the upper edge of the post-cast strip component 2 to form a circle to prevent the concrete layer 27 above from falling into the groove enclosed by the post-cast strip component 2 during pouring.

[0041] After the concrete layer 27 around the post-cast strip component 2 groove is poured and fully solidified, the sealing mechanism 3 is installed on the upper surface of the timber 283. The sealing cover plate 30 is then detachably connected to the timber 283 to achieve temporary sealing of the post-cast strip component 2 groove, preventing debris from falling into the groove during subsequent construction. The sealing cover plate 30 is made of steel plate, its size matching the annular area enclosed by the timber 283, covering the upper surface of the timber 283. Its lower surface is fixed to the support 33 with bolts. A sealing strip can be added between the edge of the sealing cover plate 30 and the upper surface of the timber 283 to improve the sealing effect. The lower end of the support 33 has a pivot hole for rotatable connection with the clamp 333. The lower surface of the support 33 has reserved space for the installation of the first spring 332 to ensure that the spring's extension and contraction are not interfered with. The clamp 333 is made of metal sheet and is semi-circular. Two arc-shaped clamping structures are symmetrically distributed on both sides of the support 33. The upper end of each clamp 333 is rotatably connected to the side plate of the support 33 via a rotating shaft. The middle parts of the two clamps 333 are hinged to each other via a hinge shaft to form an openable clamping structure. The lower end of the clamp 333 is an open clamping opening with anti-slip teeth on the inner side to enhance the clamping friction with the steel bar. The first spring 332 is a compression spring. One end of it is fixed to the lower surface of the support 33 by welding, and the other end is fixedly connected to the upper outer wall of the clamp 333. In its natural state, the first spring 332 is in a slightly compressed state, pushing the lower clamping opening of the two clamps 333 to close, ensuring clamping reliability. There are four sets of support 33, sliding column 331, and first spring 332, which are evenly distributed on the lower surface of the inner end cover 31.

[0042] As attached Figure 1 - Appendix Figure 3As shown, the post-cast strip assembly 2 also includes a cushion layer 21, a waterproof layer 22, a waterstop 23, a water-stop caulking material 24, a concrete base layer 26, a concrete block 28, a wire mesh frame 281, and a water-stop steel plate 282. The cushion layer 21 is laid on the upper surface of the base 1, the waterproof layer 22 is laid on the upper surface of the cushion layer 21, the waterstop 23 is laid on the upper surface of the waterproof layer 22, the water-stop caulking material 24 is laid on the upper surface of the waterstop 23, the concrete base layer 26 is poured on the upper surface of the waterproof layer 22 and the waterstop 23, the concrete block 28 is poured on the upper surface of the concrete base layer 26, the wire mesh frame 281 is fixedly welded to the reinforcing mesh frame 25, and the water-stop steel plate 282 is welded to the wire mesh frame 281.

[0043] It should be further explained that the concrete base layer 26 covers both sides of the water-stop caulking material 24. Four wire mesh frames 281 are provided, divided into two groups of two frames each. Two water-stop steel plates 282 are provided, with one plate welded and fixed between two wire mesh frames 281. During construction, a cushion layer 21 is first laid and poured on the upper surface of the base 1. After the cushion layer 21 solidifies, a waterproof layer 22 is laid on its surface, ensuring it is flat and undamaged. A water-stop strip 23 is laid on the waterproof layer 22 along the direction of the post-pouring strip groove. Water-stop caulking material 24 is laid on the upper surface of the water-stop strip 23, ensuring even coverage without omissions. Then, a set of steel mesh frames 25 is laid, and the concrete base layer 26 is poured, covering the waterproof layer 22, the water-stop strip 23, and both sides of the water-stop caulking material 24. After the concrete base layer 26 solidifies, concrete is poured on its surface. Block 28 is arranged according to the design spacing. Multiple sets of three-dimensional mesh steel mesh frames 25 are laid on the concrete blocks 28 of the post-pouring strip component 2. The four wire mesh frames 281 are divided into two groups and welded and fixed to the designated positions of the steel mesh frames 25 to ensure that the welding is firm. Each water-stop steel plate 282 corresponds to a set of wire mesh frames 281 and is welded and fixed between two wire mesh frames 281 to ensure that the water-stop steel plate 282 is vertical and accurately positioned, forming a horizontal water barrier. The wooden blocks 283 are spliced ​​along the area separated by the wire mesh frames 281 on the post-pouring strip component 2 to form a circle. Its lower surface is fixed to the horizontal steel bars of the uppermost steel mesh frame 25 by wrapping with iron wire. The concrete layer 27 is poured using micro-expansion anti-seepage concrete and covers the inside and outside of the groove formed by the post-pouring strip component 2 and the outside of the steel mesh frame 25 to prevent concrete from falling into the post-pouring strip groove. Then wait for the concrete layer 27 to completely solidify to form the post-pouring strip area.

[0044] It should be further explained that the sealing mechanism 3 uses the elastic potential energy of the first spring 332 to drive the semi-circular sleeve 333 to form an openable clamping claw. Combined with the sealing cover plate 30 and the upper surface of the wooden block 283 and concrete layer 27, it achieves dual protection of clamping and physical sealing. Specifically, the support 33 acts as a transmission carrier, connecting the sealing cover plate 30 and the sleeve 333. In the natural state, the first spring 332 is slightly compressed to push the clamping mouth of the sleeve 333 to close. When it is pressed by the steel bar, the sleeve 333 rotates around the pivot and the first spring 332 is further compressed. After the steel bar enters, the first spring 332 resets to achieve clamping. With the sealing strip on the edge of the sealing cover plate 30, it not only ensures the stability of the fixation, but also improves the tightness of the seal.

[0045] In actual use, the foundation 1 is first formed by integrally casting the foundation concrete, which serves as the load-bearing foundation for the entire system.An annular groove-shaped post-cast strip assembly 2 is set above the base 1 to define the forming area of ​​the post-cast strip groove. Multiple sets of three-dimensional mesh steel mesh frames 25 are laid on the post-cast strip assembly 2. Each set is welded from longitudinal, transverse, and vertical steel bars to enhance the structural strength. Timber blocks 283 are spliced ​​around the upper edge of the post-cast strip assembly 2 to form a circle. The lower surface of the timber blocks is fixed to the transverse steel bars of the uppermost steel mesh frame 25 by wrapping them with wire to form the pouring boundary of the concrete layer 27. Micro-expansion impermeable concrete is used to pour the concrete layer 27, covering the inside and outside of the groove formed by the post-cast strip assembly 2 and the steel mesh frame 25. After the concrete layer 27 has completely solidified, and following the specific construction process for forming the post-cast strip area as described above, preparations are made for the installation of the dense... The sealing mechanism 3 consists of multiple sets of sealing cover plates 30 made of steel plates adapted to the size of the annular area of ​​the timber 283. Supports 33 are bolted to their lower surfaces, and sealing strips are affixed to the edges of the sealing cover plates 30. The operator aligns the assembled sealing mechanism 3 with the area enclosed by the timber 283, ensuring that the sleeves 333 on both sides of the support 33 correspond to the target reinforcing bars on the reinforcing bar mesh 25. The sealing cover plates 30 are then lowered. When the lower opening of the sleeves 333 contacts the reinforcing bars, the reinforcing bars exert pressure on the sleeves 333, causing them to rotate around the axis of the support 33. The first spring 332 is compressed, and the lower opening of the sleeves 333 gradually expands. The sealing cover plates 30 are lowered further until they completely adhere to the upper surface of the timber 283. At this point, the reinforcing bars are fully inserted into the two sleeves. Inside the clamp of 333, the first spring 332 releases pressure and resets, pushing the two sleeves 333 to rotate around the hinge axis, closing the clamp and clamping the reinforcing bar. The anti-slip teeth inside the sleeves 333 enhance the friction with the reinforcing bar. Simultaneously, the sealing strip on the edge of the sealing cover plate 30 fits tightly against the wooden block 283, temporarily sealing the post-cast strip groove. When subsequent construction requires opening the post-cast strip groove, the operator uses tools to pull the sealing cover plate 30 upwards. The pulling force overcomes the clamping friction between the sleeves 333 and the reinforcing bar, as well as the elastic force of the first spring 332. The lower opening of the sleeves 333 unfolds again under the pulling force, detaching from the reinforcing bar, allowing the sealing mechanism 3 to be removed. This operation is convenient and does not damage the reinforcing bar mesh 25. In this implementation, traditional cover plates, relying on their own weight or simple fixing, are prone to displacement. To prevent slippage, this system uses a first spring 332 to drive the clamp 333 to adaptively clamp the reinforcing steel mesh 25, forming a mechanical locking structure. This structure has strong resistance to construction collisions, avoids the risk of displacement and slippage, prevents construction debris from falling into the trench, reduces subsequent cleaning workload, and facilitates subsequent secondary pouring. Traditional cover plates are prone to slippage, posing a risk of personnel falling in. Therefore, the sealing cover 30 can be made of steel plate, ensuring a stable and reliable structure. It also covers the entire post-pouring strip trench, forming a safety barrier. Furthermore, the sealing mechanism 3 is detachable, requiring no complex tools for installation; clamping is achieved simply by its own weight. Disassembly only requires lifting the cover plate with tools to release the clamp 333 from the reinforcing steel mesh 25, adapting to the rapid operation requirements of construction sites.

[0046] In the above embodiments, due to the relatively long length of the post-cast strip groove, the traditional design requires multiple sealing cover plates 30 to be placed side by side. However, the joint gaps between adjacent cover plates become channels for rainwater infiltration—rainwater easily falls directly into the post-cast strip groove along the gaps, not only carrying debris and increasing the difficulty of subsequent cleaning, but also potentially corroding the steel mesh 25, leading to rust and affecting the concrete setting quality. Since the post-cast strip is a critical structural load-bearing component, waterproofing and cleaning are core to ensuring the durability of the project. Therefore, the problem of water leakage through the gaps must be solved, and thus... Figures 9-10 As shown, in another embodiment of the invention, the sealing cover plate 30 includes an inner end cover 31 and an outer end cover 32. The inner end cover 31 is placed on the wooden block 283, and the outer end cover 32 is slidably disposed on the upper surface of the inner end cover 31.

[0047] Specifically, a strip groove is formed on the upper surface of the inner end cover 31 along the length of the post-pouring strip groove to accommodate the sliding of the outer end cover 32. A slider matching the groove is provided on the lower surface of the outer end cover 32, so that the outer end cover 32 can slide along the groove along the length of the post-pouring strip. The inner end cover 31 includes a drainage groove 311, which is formed on the upper surface of the inner end cover 31. A sealing strip can be added between adjacent outer end covers 32 or adjacent inner end covers 31 to improve the sealing effect of the joint. At the same time, a sealing strip can be added between the lower edge of the outer end cover 32 and the upper surface of the concrete layer 27 to improve the sealing effect.

[0048] It should be further explained that when the sealing cover plate 30, composed of the inner end cover 31 and the outer end cover 32, needs to completely cover the groove formed by the post-cast strip, multiple sets of sealing cover plates 30 are required, and each inner end cover 31 covers the wooden block 283 as follows. Figure 8 As shown, when multiple sets of inner end caps 31 and outer end caps 32 are arranged side by side to cover the casting strip to form a groove, as shown... Figure 1 and Figure 2 As shown, adjacent sealing cover plates 30, composed of inner end caps 31 and outer end caps 32, are connected end to end, meaning that adjacent inner end caps 31 and outer end caps 32 are staggered. Furthermore, to prevent rainwater from falling into the groove formed by the post-cast strip from the joint between adjacent sealing cover plates 30 during rainy weather, the sealing cover plate 30 is divided into inner end caps 31 and outer end caps 32, with multiple sets arranged in parallel to achieve full coverage of the long groove. The outer end cap 32 can slide relative to the inner end cap 31, and after being pushed, its extended portion overlaps the adjacent inner end cap 31, forming... A lap seal layer is formed, and a drainage groove 311 is provided on the inner end cap 31. Even if a small amount of rainwater seeps into the joint gap of the adjacent outer end cap 32, it will drip into the drainage groove 311, preventing it from directly entering the post-pouring strip groove. This constructs a dual waterproof system of lap blocking and groove collection. In actual use, starting from the end sealing cover plate 30, each corresponding outer end cap 32 is pushed to expose the drainage groove 311 on its inner end cap 31. All subsequent outer end caps 32 are pushed in the same manner. Figure 4 , Figure 7As shown, all outer end caps 32 are overlapped to form a continuous covering layer. When pushed, the outer end caps 32 and the corresponding inner end caps 31 are staggered. The part of the outer end cap 32 extending out of the inner end cap 31 overlaps with the adjacent inner end cap 31, and the protruding end of the outer end cap 32 is exactly above the drainage groove 311. Therefore, in rainy weather, even if some rainwater seeps into the joint gap between two adjacent outer end caps 32, the seeping rainwater will drip into the drainage groove 311 and will not fall directly into the groove formed by the post-pouring strip, thus improving the waterproof effect. In this embodiment, the dual design of overlapping and sealing of the outer end caps 32 and collection by the drainage groove 311 solves the problem of water leakage in the gaps of traditional multi-panel cover plates, avoids debris entering the groove and steel corrosion, reduces the amount of subsequent cleaning and maintenance work, and ensures the durability of the post-pouring strip structure.

[0049] It should be further explained that the inner end cap 31 and outer end cap 32 located in the middle section are not provided with corresponding supports 33, first springs 332, and clips 333, and are only provided at the beginning and end. This design further saves costs. At the same time, in use, since each corresponding outer end cap 32 rests on the adjacent inner end cap 31 starting from one end, when a non-operator attempts to open one of the inner end caps 31 and outer end caps 32 in the middle section, and because the adjacent outer end cap 32 rests on the inner end cap 31 that is being attempted to be opened, the inner end caps at both ends will be affected. The clamp 333 set below the cover 31 is clamped on the steel bars of the steel mesh frame 25, so that the outer end cover 32 starting from one end will press on the adjacent inner end cover 31, thus staggered. In this way, the overlapping structure of a row of adjacent outer end covers 32 and inner end covers 31 forms a linkage constraint. The inner end cover 31 and outer end cover 32 at the beginning and end are fixed by clamping the steel bars with the clamp 333. The inner end cover 31 in the middle part is pressed by the adjacent outer end cover 32 and cannot be easily opened, so that non-workers cannot easily open one of the middle inner end cover 31 and outer end cover 32.

[0050] After the adjacent outer end cap 32 and inner end cap 31 are assembled, and to prevent the outer end cap 32 at both ends from sliding freely, the common fixing method of blocks and bolts is adopted. Limiting blocks are set at both ends of the outer end cap 32 at both ends along the length of the post-pouring strip. The blocks are fixed to the wooden blocks 283 with bolts to prevent the outer end cap 32 from sliding freely. This method uses bolts and blocks commonly found on the construction site, which is simple to operate, reliable to fix, and easy to disassemble, without affecting the subsequent cover plate disassembly process.

[0051] As described above, since the clips 333 provided below the inner end caps 31 at both ends are clamped on the steel bars of the steel mesh frame 25 and are clamped by the elastic force of the first spring 332, and when the workers use tools to pull the inner end caps 31 and the outer end caps 32 upwards, the elastic force of the first spring 332 is limited, and the workers can easily open them with tools, or even non-workers can easily open the cover with simple tools, which cannot guarantee the continuity and safety of the seal. In order to prevent the inner end caps 31 and the outer end caps 32 from being easily opened, this embodiment also includes a stop bar 34 and a second spring 341. The stop bar 34 is slidably disposed on the inner end cap 31, and the second spring 341 is fixedly disposed between the stop bar 34 and the inner end cap 31.

[0052] Specifically, such as Figure 10 As shown, the outer end cover 32 includes a first reset groove 321, which is formed on the lower surface of the outer end cover 32.

[0053] The inner end cover 31 is provided with a mounting groove, and the stop rod 34 is slidably connected in the mounting groove. The upper end face of the stop rod 34 has inclined surfaces on both sides, and the inclined surfaces at the upper end of the stop rod 34 extend into the first reset groove 321. There are four sets of the first reset groove 321, the stop rod 34, and the second spring 341. Each set of the first reset groove 321, the stop rod 34, and the second spring 341 has two pairs, and the two pairs of the first reset groove 321, the stop rod 34, and the second spring 341 are symmetrically distributed. The support 33 is fixedly connected to the lower surface of the inner end cover 31.

[0054] It should be further explained that when each corresponding outer end cap 32 is manually pushed from the end, exposing the drainage groove 311 on its inner end cap 31, and each adjacent outer end cap 32 is operated in sequence, the outer end cap 32 and the corresponding inner end cap 31 are staggered during the pushing process. The portion of the outer end cap 32 extending beyond the inner end cap 31 will overlap the adjacent inner end cap 31. Simultaneously, a first reset groove 321 is formed on the lower surface of the outer end cap 32. A stop rod 34 and a second spring 341 are configured within the groove of the inner end cap 31. The upper end of the stop rod 34 has an inclined surface that extends into the first reset groove 321. When the outer end cap 32 is pushed, the groove wall of the first reset groove 321 presses against the inclined surface of the stop rod 34, driving the stop rod 34 to move downwards to the sleeve 3. The two sides of the retaining rod 33 are pressed against the outside of the retaining rod 333, restricting the rotation of the retaining rod 333 and preventing the retaining rod 333 from opening under tension. That is, the retaining rod 333 cannot be rotated and opened under the resistance of the retaining rod 34. The retaining rod 333 changes from the locked state of the reinforcing bar to the locked state. Even if the outer end cap 32 and the inner end cap 31 are lifted upward, the retaining rod 333 cannot be opened. That is, the retaining rod 333 is in the locked state at this time. The retaining rods 333 at the beginning and end remain clamped to the reinforcing bar. The inner end cap 31 in the middle part is pressed by the adjacent outer end cap 32 and cannot be opened independently. This further solves the problem that the sealing cover 30 in different positions can be easily opened with simple tools and improves the connection effect between the inner end cap 31 and the reinforcing bar on the reinforcing bar grid 25.

[0055] In summary, the staggered arrangement not only forms a continuous sealing layer through the overlapping of the outer end caps 32, achieving double waterproofing in conjunction with the drainage groove 311, thus solving the problem of water leakage from the gaps in traditional multi-panel cover designs, preventing rainwater from carrying debris into the groove and eroding the steel mesh 25, ensuring the durability of the post-cast strip structure and reducing subsequent cleaning and maintenance workload; it also utilizes the linkage constraint structure of the clamping and fixing of the end sleeves 333 and the middle outer end cap 32 to form a protective system against unauthorized opening; and it can also cooperate with the stop bar 34, the second spring 341, and the first reset groove 321 to drive the stop bar 34 to move down and lock the sleeve 333 when the outer end cap 32 is pushed to complete the overlap, restricting the rotation of the sleeve 333, further strengthening the fixing effect of the end outer end caps 32 and the inner end cap 31.

[0056] In the above embodiments, when it is necessary to remove the inner end cap 31 and the outer end cap 32, although multiple sets of outer end caps 32 can be manually pushed to slide relative to the inner end cap 31, causing them to push the protruding part of the outer end cap 32 in the opposite direction and reset it, the first reset groove 321 re-aligns with the stop bar 34, and the stop bar 34 returns to the first reset groove 321 under the elastic force of the second spring 341, releasing the obstruction of the stop bar 34, and thus the inner end cap 31 and the outer end cap 32 in the middle part can be quickly removed from the post-cast strip groove, the inner end caps 31 and the outer end cap 32 at both ends are still clamped to the reinforcing bar due to the obstruction of the lower surface of the inner end cap 31 by the cooperation of the clamp 333 and the first spring 332. However, during removal, it is still necessary to use tools to overcome the elastic force of the first spring 332 to release the reinforcing bar from the clamp 333, thus making removal still laborious, and so on. Figure 10 As shown, in another embodiment of the invention, the support 33 further includes a sliding column 331, which is slidably connected inside the support 33.

[0057] The outer end cover 32 also includes a second reset groove 322, which is formed on the lower surface of the outer end cover 32.

[0058] Specifically, both the support 33 and the inner end cap 31 have through sliding holes on their surfaces, and the sliding pins 331 are slidably connected in the through sliding holes of the support 33 and the inner end cap 31.

[0059] It should be further explained that when dismantling is required, first remove the blocks fixed by bolts, and then manually push multiple sets of outer end caps 32 from the ends in the opposite direction (the outer end caps 32 can slide relative to the inner end caps 31, and the extended part overlaps the adjacent inner end caps 31 after being pushed), so that the outer end caps 32 slide relative to the inner end caps 31, so that the extended part of the outer end caps 32 is pushed in the opposite direction, so that it is reset. At the same time, the first reset groove 321 re-aligns with the stop bar 34, and the stop bar 34 returns to the first reset groove 321 under the elastic force of the second spring 341, releasing the obstruction of the stop bar 34. Then, the inner end caps 31 and outer end caps 32 in the middle part can be quickly removed from the post-cast strip groove. Then, the outer end caps 32 at both ends can be pushed, so that the complete second reset grooves 322 on the outer end caps 32 align with the sliding column 331 and the stop bar 34 on the support 33, and so that the sliding column 331... The upper end of 31 does not contact the lower surface of the outer end cap 32, so that it is fixed in contact with the position of the first spring 332. Then, when the inner end cap 31 and the outer end cap 32 are manually pulled upward, the steel bar exerts a downward force on the sleeve 333, pushing the sleeve 333 to rotate outward around the rotation axis. During the rotation of the sleeve 333, the sliding column 331 is driven to slide upward along the through sliding hole. When the sliding column 331 moves upward, it assists in stretching the first spring 332, so that the elastic force of the first spring 332 is partially offset. The lifting force required to open the sleeve 333 is greatly reduced. Without the aid of tools or with only slight force, the sleeve 333 can be completely separated from the steel bar. In this embodiment, through the linkage design of the sliding column 331 and the second reset groove 322, the laborious dismantling that originally required tools to overcome the elastic force of the first spring 332 is transformed into a convenient operation that can be completed by slight manual lifting, which reduces the labor intensity of the workers.

[0060] The method for preparing a basement post-cast strip system includes the following steps:

[0061] Step 1: Casting base 1. Base 1 is cast as a whole using foundation concrete, serving as the load-bearing foundation for the entire post-cast strip system.

[0062] Step 2: After construction of the bottom structure of the concrete pouring strip component 2, lay the pad layer 21, waterproof layer 22, waterstop 23, and waterstop caulking material 24 on the upper surface of the base 1 in sequence to ensure uniform coverage; at the same time, lay a set of steel mesh 25, pour the concrete bottom layer 26 to cover the waterproof layer 22, waterstop 23 and waterstop caulking material 24 on both sides, and wait for it to solidify.

[0063] Step 3: Construct the upper structure of the post-cast strip component 2, such as the concrete base layer 26, concrete block 28, mesh steel mesh frame 25, waterstop steel plate 282, timber 283, and pour the concrete layer 27 to cover the inside and outside of the post-cast strip groove and the outside of the steel mesh frame 25.

[0064] Step 4: Assemble the sealing mechanism 3 and prepare the sealing cover plate 30, which consists of an inner end cover 31 and an outer end cover 32;

[0065] Step 5: Install the sealing mechanism 3. Align the assembled sealing mechanism 3 with the area enclosed by the wooden blocks 283, so that the sleeve 333 corresponds to the target steel bar of the steel mesh frame 25. After the sleeve 333 contacts the steel bar, it is compressed and unfolds. After the steel bar is fully inserted into the clamp, the first spring 332 returns to its original position, thus completing the fixation of the steel bar and the sleeve 333.

[0066] Step Six: Remove the sealing mechanism 3. Push the outer end cover 32 in the opposite direction to reset it. At this time, the stop bar 34 returns to the first reset groove 321 under the action of the second spring 341, releasing the lock on the jacket 333. Slightly lift the sealing cover plate 30: the steel bar presses the jacket 333 to rotate, which simultaneously drives the sliding column 331 to slide, counteracting the elastic force of the first spring 332, so that the jacket 333 opens and the sealing cover plate 30 can be removed.

[0067] Specifically, a monolithically cast concrete base 1 is used as the load-bearing foundation for the entire post-cast strip system. The bottom structure of the post-cast strip component 2 is constructed. A cushion layer 21 is laid and poured on the upper surface of the base 1 and allowed to solidify. A waterproof layer 22 is laid on the surface of the cushion layer 21, ensuring it is flat and undamaged. Along the direction of the post-cast strip groove, a waterstop 23 and a sealing material 24 are laid sequentially on the waterproof layer 22, ensuring uniform coverage. A set of steel mesh 25 is laid, and a concrete bottom layer 26 is poured to cover both sides of the waterproof layer 22, waterstop 23, and sealing material 24, allowing it to solidify. The upper structure of the post-cast strip component 2 is then constructed. Concrete blocks 28 are poured on the surface of the concrete bottom layer 26. Arranged according to design spacing; multiple sets of three-dimensional mesh steel mesh frames 25, made of longitudinal, transverse and vertical steel bars, are laid on concrete blocks 28; four wire mesh frames 281 are divided into two groups and welded and fixed at designated positions on the steel mesh frame 25; water-stop steel plates 282 are welded between each group of wire mesh frames 281 to ensure verticality and precise positioning; wooden blocks 283 are spliced ​​together to form a circle along the post-pouring strip assembly 2, and their lower surface is fixed to the transverse steel bars of the uppermost steel mesh frame 25 with iron wire; a concrete layer 27 is poured using micro-expansion impermeable concrete to cover the perimeter of the post-pouring strip groove and the outside of the steel mesh frame 25 to prevent concrete from falling into the groove, and after it is completely solidified, the post-pouring strip area is formed. The sealing cover plate 30 is composed of an inner end cover 31 and an outer end cover 32, and its size is adapted to the annular area enclosed by the wooden blocks 283. A support 33 is fixed to the lower surface of the inner end cover 31 with bolts, and sealing strips are pasted on the edge of the sealing cover plate 30. The lower end of the support 33 is connected to a semi-circular arc-shaped clamping structure of a sleeve 333, and a first spring 332 is installed between the support 33 and the sleeve 333, which is slightly compressed in its natural state. A stop bar 34 and a second spring 341 are configured in the mounting groove of the inner end cover 31, so that the upper inclined surface of the stop bar 34 extends into the first reset groove 321 of the outer end cover 32, making the sleeve 333 correspond to the target steel bar of the steel mesh frame 25. After the sleeve 333 contacts the steel bar, it is compressed and unfolds. After the steel bar is fully inserted into the clamp, the first spring 332 resets, driving the sleeve 333 to clamp the steel bar. The anti-slip teeth inside the sleeve 333 enhance the friction. Starting from the end... Each outer end cap 32 is pushed to slide along the groove of the inner end cap 31, so that the protruding part of the outer end cap 32 overlaps with the adjacent inner end cap 31, until all outer end caps 32 are overlapped; on the outside of the outer end caps 32 at both ends, the limiting blocks are fixed with bolts to prevent the outer end caps 32 from sliding, thus completing the temporary seal; during subsequent construction, the limiting blocks at both ends are removed; the outer end caps 32 are pushed in the opposite direction to reset them, at which time the stop bar 34 returns to the first reset groove 321 under the action of the second spring 341, releasing the lock on the jacket 333; the sealing cover plate 30 is slightly lifted: the steel bar presses the jacket 333 to rotate, which simultaneously drives the sliding column 331 to slide, counteracting the elastic force of the first spring 332, so that the jacket 333 opens, and the sealing mechanism 3 can be removed. After cleaning the post-cast strip groove, it is convenient for the secondary pouring of the post-cast strip groove.

[0068] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A basement post-cast strip system, comprising a base (1), a post-cast strip assembly (2), a steel mesh frame (25), a concrete layer (27), and timber (283), wherein the post-cast strip assembly (2) is set on the base (1), the steel mesh frame (25) is set on the post-cast strip assembly (2), the concrete layer (27) is set on the steel mesh frame (25), and the timber (283) is set on the upper surface of the steel mesh frame (25); characterized in that It also includes a sealing mechanism (3) set on the timber (283). The sealing mechanism (3) includes a sealing cover plate (30), a support (33), a first spring (332), and a sleeve (333). The sealing cover plate (30) is set on the timber (283). The support (33) is fixedly connected to the lower surface of the sealing cover plate (30). The sleeve (333) is rotatably connected to the lower surface of the support (33). The first spring (332) is fixedly connected between the sleeve (333) and the support (33). The sealing cover plate (30) includes an inner end cover (31) and an outer end cover (32). The inner end cover (31) is placed on the timber (283). The outer end cover (32) is slidably set on the upper surface of the inner end cover (31). The upper surface of the inner end cover (31) has a strip groove along the length direction of the post-pouring strip groove. The outer end cover (32) The lower surface is provided with a slider that matches the slide groove, so that the outer end cover 32 can slide along the slide groove along the length of the post-pouring strip. The inner end cover (31) includes a drainage groove (311), which is opened on the upper surface of the inner end cover (31). It also includes a stop rod (34) and a second spring (341). The stop rod (34) is slidably disposed on the inner end cover (31), and the second spring (341) is fixedly disposed between the stop rod (34) and the inner end cover (31). The outer end cover (32) includes a first reset groove (321), which is opened on the lower surface of the outer end cover (32). The inner end cover (31) is provided with an installation groove. The stop rod (34) is slidably connected in the installation groove, and the upper end face of the stop rod (34) is provided with inclined surfaces on both sides, and the inclined surfaces provided at the upper end of the stop rod (34) extend into the first reset groove (321).

2. The basement post-cast strip system according to claim 1, wherein, The post-cast strip assembly (2) also includes a cushion layer (21), a waterproof layer (22), a waterstop (23), a water-stop caulking material (24), a concrete base layer (26), a concrete block (28), a wire mesh frame (281), and a water-stop steel plate (282). The cushion layer (21) is laid on the upper surface of the base (1), the waterproof layer (22) is laid on the upper surface of the cushion layer (21), the waterstop (23) is laid on the upper surface of the waterproof layer (22), the water-stop caulking material (24) is laid on the upper surface of the waterstop (23), the concrete base layer (26) is poured on the upper surface of the waterproof layer (22) and the waterstop (23), the concrete block (28) is poured on the upper surface of the concrete base layer (26), the wire mesh frame (281) is fixedly welded to the steel mesh frame (25), and the water-stop steel plate (282) is welded to the wire mesh frame (281).

3. The basement post-cast strip system according to claim 2, characterized in that, The first reset groove (321), the stop bar (34), and the second spring (341) are provided in four sets, and each set of the first reset groove (321), the stop bar (34), and the second spring (341) are provided in two pairs, and the two pairs of the first reset groove (321), the stop bar (34), and the second spring (341) are symmetrically distributed. The support (33) is fixedly connected to the lower surface of the inner end cover (31).

4. The basement post-cast strip system according to claim 3, characterized in that, The support (33) also includes a sliding column (331), which is slidably connected inside the support (33).

5. The basement post-cast strip system according to claim 4, characterized in that, The outer end cover (32) also includes a second reset groove (322), which is formed on the lower surface of the outer end cover (32).

6. The method for preparing the basement post-cast strip system according to claim 5, characterized in that, Includes the following steps: Step 1: Casting the base (1), the base (1) is formed by integral casting of foundation concrete, which serves as the bearing foundation of the entire post-cast strip system; Step 2: After construction, the bottom structure of the pouring strip component (2) is constructed. On the upper surface of the base (1), the pad layer (21), waterproof layer (22), waterstop (23), and waterstop caulking material (24) are laid in sequence to ensure uniform coverage. At the same time, a set of steel mesh (25) is laid, and the bottom concrete layer (26) is poured and allowed to solidify. Step 3: Construction of the post-construction pouring strip assembly (2) upper structure; Step 4: Assemble the sealing mechanism (3) and prepare the sealing cover plate (30); Step 5: Install the sealing mechanism (3). Align the assembled sealing mechanism (3) with the area enclosed by the wooden block (283) so that the sleeve (333) corresponds to the target steel bar of the steel mesh frame (25). After the sleeve (333) contacts the steel bar, it is compressed and unfolded. After the steel bar is fully inserted into the clamp, the first spring (332) resets, so that the steel bar is fixed to the sleeve (333). Step 6: Remove the sealing mechanism (3), push the outer end cover (32) in the opposite direction to reset it. At this time, the stop bar (34) returns to the first reset groove (321) under the action of the second spring (341), release the lock on the jacket (333), slightly lift the sealing cover plate (30), the steel bar presses the jacket (333) to rotate, and simultaneously drives the slide column (331) to slide, counteracting the elastic force of the first spring (332), so that the jacket (333) opens, and the sealing cover plate (30) can be removed.

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