CN212200480U

CN212200480U - Thin plate moulding bed device for pouring concrete bottom plate foundation beam or bearing platform

Info

Publication number: CN212200480U
Application number: CN202020771573.5U
Authority: CN
Inventors: 李辉; 林雪江; 李科军; 赵伟军; 沈建平; 方美财
Original assignee: Zhejiang Wanhua Construction Co ltd; Zhonghua Huafeng Construction Co ltd; Darong Construction Group Co ltd
Current assignee: Zhejiang Wanhua Construction Co ltd; Zhonghua Huafeng Construction Co ltd; Darong Construction Group Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-12-22
Anticipated expiration: 2030-05-11

Abstract

The utility model discloses a thin plate moulding bed device for a foundation beam or a bearing platform of a pouring concrete bottom plate, which comprises a plurality of prefabricated moulding bed single bodies; the single tire membranes are placed on the bottom concrete cushion layer and are arranged close to each other to form a layer and attached to the side wall of the foundation trench or the side wall of the foundation pit; every two adjacent and parallel child membrane monomers are connected through two upper and lower direct connection pieces, every two adjacent and perpendicular child membrane monomers are connected through two upper and lower corner connection pieces, are equipped with the support that prevents the inside lodging of child membrane monomer between every child membrane monomer lower part and the bottom concrete bed course and lean on the device. The tire membrane device is high in construction speed, high in efficiency, low in material consumption and small in occupied space.

Description

Thin plate moulding bed device for pouring concrete bottom plate foundation beam or bearing platform

Technical Field

The utility model relates to a building concrete foundation construction technical field among the civil engineering specifically says a sheet metal fetal membrane device that foundation beam or cushion cap of concrete bottom plate of pouring building used.

Background

The concrete foundation of the civil construction refers to a concrete bottom plate, a foundation beam and a bearing platform which are integrally cast with the bottom plate; the top surface of the foundation beam or the bearing platform is flush with the top surface of the concrete bottom plate, and the height of the foundation beam or the bearing platform is larger than the thickness of the bottom plate, so that the lower part of the foundation beam or the bearing platform is protruded downwards from the bottom plate, and the prior art mostly adopts a brick-built tire membrane for retaining soil. The concrete construction process includes digging down long foundation trench or rectangular foundation pit, pouring concrete cushion layer in the bottom of the foundation trench or foundation pit, leveling the side wall of the foundation trench or foundation pit with mortar, building brick blocks by blocks to form brick base film adhered to the side wall of the foundation trench or foundation pit, binding foundation beam or bearing platform and reinforcing cage of the bottom plate, and pouring concrete.

The above-mentioned traditional work progress has following defect: the brick moulding bed is built by mortar block by workers on site, the wet method operation speed is slow, the labor intensity is high, the efficiency is low, a large amount of mortar and bricks can be consumed, the cost is high, and the green environmental protection concept is not met; moreover, the brick moulding bed has large thickness and large occupied space, a wider and larger foundation trench or foundation pit needs to be dug, the amount of soil digging engineering is large, the labor intensity is further increased, and the construction efficiency is slowed down.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a sheet metal fetal membrane device that foundation beam or cushion cap of the pouring concrete bottom plate that construction speed is fast, efficient, the material consumes for a short time, occupation space is little, the cost of labor is low is used.

The technical solution of the utility model is to provide a thin plate fetal membrane device for pouring a foundation beam or a bearing platform of a concrete bottom plate, which comprises a plurality of prefabricated fetal membrane monomers, wherein each fetal membrane monomer comprises a concrete thin plate poured with a reinforcing mesh, and four corners of the concrete thin plate are provided with four bolt holes; a bottom concrete cushion layer is poured at the bottom of the foundation beam foundation trench or the bottom of the bearing platform foundation trench, the single tire membranes are placed on the bottom concrete cushion layer and are arranged close to each other to form a layer which is attached to the side wall of the foundation trench or the side wall of the foundation trench; each two adjacent and parallel single fetal membranes are connected through an upper direct connecting piece and a lower direct connecting piece, each direct connecting piece is provided with a left through hole and a right through hole, and each through hole of each direct connecting piece is connected with a bolt hole at a corresponding corner of one corresponding single fetal membrane through a locking bolt; each two adjacent and vertical tire membrane single bodies are connected through an upper corner connecting piece and a lower corner connecting piece, each corner connecting piece is provided with a left through hole and a right through hole, and each through hole of each corner connecting piece is connected with a bolt hole at a corresponding corner of one corresponding tire membrane single body through a locking bolt; and a propping device for preventing the single tire membrane from falling inwards is arranged between the lower part of each single tire membrane and the bottom concrete cushion layer.

Compared with the prior art, the thin plate die-cast device for the foundation beam or the bearing platform of the cast concrete bottom plate with the structure has the following advantages.

The single tire membrane is prefabricated in a factory, and only a small crane is needed to install each single tire membrane and is screwed and fixed on the site; the construction speed is high, the construction efficiency is high, wet masonry of workers is not needed, the site is clean and environment-friendly, the mortar brick consumption is low, the labor intensity is relatively low, and the labor cost is low; moreover, for each tyre membrane monomer, the reinforcing mesh is arranged, so that the wall thickness can be controlled to be thinner, for example, within 50mm, and the strength and the bearing capacity can be ensured to meet the requirement of soil retaining, thereby obviously reducing the floor area of the tyre membrane, further reducing the engineering quantity of soil excavation and further saving the labor cost; the bottom plate foundation beam often has the condition that the cross beam and the longitudinal beam are vertically crossed, or the foundation pit of the bearing platform has four corners, and the corner connecting piece effectively solves the butt joint of the single tire membranes at the crossed position of the foundation beam or the corner position of the foundation pit of the bearing platform; the direct connecting pieces solve the butt joint of adjacent single fetal membranes at the common positions of the foundation trench or the foundation pit, the two connecting pieces are simple and convenient to assemble, only a bolt needs to penetrate through a bolt hole at one corner of the single fetal membrane and a through hole of the connecting piece from outside to inside, and then a nut is screwed, the head of the bolt is reserved on the outer side of the single fetal membrane in advance, and the nut is arranged on the inner side of the single fetal membrane, so that workers can conveniently operate and screw; and above-mentioned two kinds of connection pieces have just established the fetal membrane whole with each fetal membrane monomer jointly, and the connection effect is good, and the firmness is high, has ensured holistic retaining effect.

The abutting device between the lower part of each tire membrane monomer and the bottom concrete cushion layer is optimized, each tire membrane monomer placed on the bottom concrete cushion layer is correspondingly provided with two iron expansion ribs, the bottom end of each iron expansion rib is knocked into the bottom concrete cushion layer, and the upper end of each iron expansion rib abuts against the inner surface of the corresponding tire membrane monomer; this structure convenient assembling only needs will lean on the free indisputable inflation muscle of fetal membrane to beat into the end concrete bed course of foundation ditch or foundation ditch can, and can provide sufficient support to the fetal membrane monomer after pegging graft, avoid the fetal membrane monomer to shift under the soil side pressure effect.

Preferably, a supporting cross rod is arranged between the single tire membrane body attached to one side wall of the foundation pit or the foundation trench and the single tire membrane body attached to the opposite side wall of the foundation pit or the foundation trench, two ends of the supporting cross rod are respectively provided with a wedge-shaped end with a narrow outer part and a wide inner part, each wedge-shaped end is matched with a sliding sleeve, and each sliding sleeve is provided with two clamping teeth for clamping the upper edge of the single tire membrane body on the same side; like this, increased one deck restraint and support in fetal membrane monomer upper end, along with the soil side pressure increase, when taking place the trend of falling inwards in fetal membrane monomer upper end, block the sliding sleeve of fetal membrane monomer upper end and can inwards slide, and the wedge end of outer narrow interior width can block the sliding sleeve of inward shift more tight more to effectively block the trend of fetal membrane monomer enstrophe, further reduce the possibility of fetal membrane monomer displacement under soil side pressure.

Still further preferably, the inner surface of each single tire membrane attached to the sidewall of the foundation trench or the sidewall of the foundation pit is attached with another same single tire membrane; the locking bolt penetrating through the bolt hole of the outer-layer tire membrane monomer also penetrates through the bolt hole of the inner-layer tire membrane monomer, and the inner surface of the inner-layer tire membrane monomer is tightly pressed by the nut screwed at the inner end of the locking bolt; therefore, when the lateral pressure of the soil body is larger, the inner tire membrane monomer is additionally arranged, in other words, the inner tire membrane monomer and the outer tire membrane monomer are constructed, the two tire membrane monomers are firmly connected through the locking bolt, the pressure of the soil body is resisted together, the overall strength and the bearing capacity of the tire membrane are further enhanced, the requirements of different soil qualities are met, and the universality is improved.

Preferably, another single tire membrane is placed above each single tire membrane placed on the bottom concrete cushion layer; the lower surface of the upper fetal membrane monomer is provided with a clamping groove, the upper surface of the lower fetal membrane monomer is provided with a convex strip, the convex strip and the clamping groove are mutually clamped and limited, and quick-hardening cement slurry is coated between the convex strip and the clamping groove; the inner surface of the joint of the upper and lower fetal membrane monomers is bonded with fiber mesh cloth by quick-hardening cement paste; thus, when the depth of the foundation trench or the foundation pit is larger, a layer of upper tire membrane monomer is additionally arranged, an upper layer of tire membrane monomer and a lower layer of tire membrane monomer are substantially constructed, the two layers of tire membrane monomers are clamped and connected through convex strips and grooves in a male-female mode, and fast-hardening cement slurry is used for bonding in an auxiliary mode, so that firm connection is guaranteed; moreover, the fiber mesh cloth bonded on the inner surface of the joint of the upper and lower tire membrane monomers further increases the connection firmness and the supporting performance of the two tire membrane monomers, so that the requirements of a deep foundation trench or a deep foundation pit are completely met.

Drawings

Fig. 1 is a schematic view of the overhead structure of the t-shaped foundation beam constructed by the thin plate membrane forming device for the foundation beam or the bearing platform of the cast concrete floor of the utility model.

Fig. 2 is a schematic front view of the single body of the tire membrane of the thin-plate tire membrane device for the foundation beam or the bearing platform of the cast concrete floor of the present invention.

3 fig. 3 3 3 is 3 a 3 schematic 3 view 3 of 3 the 3 structure 3 of 3 fig. 3 1 3 viewed 3 in 3 the 3 direction 3 a 3- 3 a 3. 3

Fig. 4 is a schematic view of the structure of fig. 1 viewed in the direction B-B.

Fig. 5 is a schematic view of the structure of fig. 1 viewed in the direction C-C.

Fig. 6 is a schematic view showing a structure when a concrete mat of a floor is not cast in fig. 5 while being temporarily supported by a support rail.

Fig. 7 is a schematic side sectional structural view of the thin plate molding bed device for the foundation beam or the bearing platform of the cast concrete floor in a thickened and heightened state.

Fig. 8 is a schematic structural view of a corner connecting piece of a thin plate tire membrane device for a foundation beam or a bearing platform of a cast concrete floor according to the present invention.

Fig. 9 is a schematic structural view of the direct connection piece of the thin plate membrane device for the foundation beam or the bearing platform of the cast concrete floor of the present invention.

Fig. 10 is a partially enlarged schematic view of the structure of fig. 6 viewed in the direction D.

Fig. 11 is a schematic top view of the thin plate membrane device for a foundation beam or a bearing platform of a cast concrete floor slab of the present invention.

Shown in the figure 1, a single tire membrane, 1.1, a reinforcing mesh, 1.2, a concrete sheet, 1.3, bolt holes, 2, a foundation groove, 3, a foundation pit, 4, a bottom concrete cushion layer, 5, a direct connecting sheet, 6, a through hole, 7, a locking bolt, 8, a corner connecting sheet, 9, an iron expansion rib, 10, a supporting cross rod, 10.1, a wedge-shaped end, 11, a sliding sleeve, 11.1, a latch, 12, a bottom plate concrete cushion layer, 13, a clamping groove, 14, a convex strip, 15 and fiber gridding cloth.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

As shown in fig. 1 to 11, the thin plate membrane device for casting a foundation beam or a bearing platform of a concrete floor of the present invention comprises a plurality of prefabricated membrane units 1, each membrane unit 1 comprises a concrete thin plate 1.2 cast with a reinforcing mesh 1.1 of phi 4mm or phi 6mm, and the thickness of the concrete thin plate 1.2 can be controlled at 50 mm; and four corners of the concrete thin plate 1.2 are provided with four bolt holes 1.3. And a bottom concrete cushion layer 4 is poured at the bottom of the foundation beam foundation trench 2 or the bottom of the bearing platform foundation trench 3, the single tire membrane units 1 are placed on the bottom concrete cushion layer 4, and the single tire membrane units 1 are close to each other to form a layer and are attached to the side wall of the foundation trench 2 or the side wall of the foundation trench 3.

Each two adjacent and parallel single fetal membranes 1 are connected through an upper direct connecting piece 5 and a lower direct connecting piece 5, namely, each direct connecting piece 5 is provided with a left through hole 6 and a right through hole 6, and each through hole 6 of each direct connecting piece 5 is connected with a bolt hole 1.3 of a corresponding corner of one corresponding single fetal membrane 1 through a locking bolt 7; specifically, the left through hole 6 of each straight connecting piece 5 is connected with the bolt hole 1.3 located at the upper right corner or the lower right corner of one single tire membrane 1 on the left side through a locking bolt 7, and the right through hole 6 of each straight connecting piece 5 is connected with the bolt hole 1.3 located at the upper left corner or the lower left corner of one single tire membrane 1 on the right side through a locking bolt 7. For convenient screwing, the head part of the locking bolt 7 is arranged at the outer side of the single tire membrane 1, and the rod part and the nut are arranged at the inner side of the single tire membrane 1.

Every two adjacent and perpendicular child membrane monomers 1 are connected through two upper and lower corner connection pieces 8, and every corner connection piece 8 is equipped with two through-holes 6 about being equipped with, and every through-hole 6 of every corner connection piece 8 is connected through locking bolt 7 with the bolt hole 1.3 that corresponds one corner on the corresponding child membrane monomer 1.

An abutting device for preventing the single tire membrane 1 from falling inwards is arranged between the lower part of the single tire membrane 1 and the bottom concrete cushion layer 4. Specifically, each single tire membrane 1 placed on the bottom concrete cushion layer 4 is correspondingly provided with two iron expansion ribs 9, the bottom end of each iron expansion rib 9 is knocked into the bottom concrete cushion layer 4, and the upper end of each iron expansion rib abuts against the inner surface of the corresponding single tire membrane 1. Of course, the iron expansion ribs 9 are not used, but the cement mortar can be directly bonded at the corners between the single tire membrane 1 and the bottom concrete cushion layer 4.

As a gain scheme of the lodging-resistant supporting structure, a supporting cross rod 10 is arranged between a single tire membrane 1 attached to one side wall of a foundation pit 3 or a foundation pit 2 and a single tire membrane 1 attached to the opposite side wall of the foundation pit 3 or the foundation pit 2, two end parts of the supporting cross rod 10 are respectively provided with a wedge-shaped end 10.1 with a narrow outside and a wide inside, each wedge-shaped end 10.1 is matched with a sliding sleeve 11, and each sliding sleeve 11 is provided with two clamping teeth 11.1 used for clamping the upper edge of the single tire membrane 1 on the same side. Of course, the support cross bar 10 and the sliding sleeve 11 provide temporary support before the concrete cushion 12 of the building bottom plate is poured, and when the concrete cushion 12 of the bottom plate is poured, the cross bar 10 and the sliding sleeve 11 are removed, and the concrete cushion 12 of the bottom plate is pressed on the top end of the single tire membrane 1 to prevent the single tire membrane from falling inwards.

If the soil layer is soft and the pressure on the soil side is large, the inner and outer layers of the single tire membranes 1 which are mutually attached can be additionally arranged. Specifically, the inner surface of each single tire membrane 1 attached to the side wall of the foundation trench 2 or the side wall of the foundation pit 3 is attached with another same single tire membrane 1; the locking bolt 7 penetrating through the bolt hole 1.3 of the outer-layer tire membrane single body 1 also penetrates through the bolt hole 1.3 of the inner-layer tire membrane single body 1, and a nut screwed at the inner end of the locking bolt 7 presses the inner surface of the inner-layer tire membrane single body 1.

When the depth of the foundation trench 2 or the foundation pit 3 is larger, an upper layer of the single tire membrane 1 and a lower layer of the single tire membrane 1 are stacked, and specifically, another single tire membrane 1 is placed above each single tire membrane 1 placed on the bottom concrete cushion layer 4; the lower surface of the upper single tire membrane 1 is provided with a clamping groove 13, the upper surface of the lower single tire membrane 1 is provided with a convex strip 14, the convex strip 14 and the clamping groove 13 are mutually clamped and limited, and quick-hardening cement slurry serving as a bonding agent is coated between the convex strip 14 and the clamping groove 13; the inner surface of the joint of the upper and the lower single tire membranes 1 is bonded with fiber mesh cloth 15 by quick hardening cement slurry.

Finally, the concept of the foundation trench 2 and the foundation trench 3 is explained again. The foundation trench 2 is a horizontal trench dug in the bottom plate for pouring the foundation beam, and the foundation beam is often crossed longitudinally and transversely to form a cross or T shape, as shown in fig. 1, the foundation trench 2 naturally has a corner part which needs to use a corner connecting sheet 8 and a normal straight trench wall which uses a straight connecting sheet 5. Similarly, the foundation pit 3 is a rectangular pit dug in the bottom plate for casting the bearing platform, so that the corner part needing to use the corner connecting sheet 8 and the normal side wall needing to use the direct connecting sheet 5 naturally exist. Of course, since the outer contour of the bearing platform is the same as that of the water collecting well, the tire membrane of the pouring bearing platform can also be used for pouring the water collecting well.

Claims

1. A thin plate moulding bed device for pouring a foundation beam or a bearing platform of a concrete bottom plate is characterized in that: the prefabricated tire membrane comprises a plurality of prefabricated tire membrane single bodies (1), wherein each tire membrane single body (1) comprises a concrete thin plate (1.2) poured with a reinforcing mesh (1.1), and four bolt holes (1.3) are formed in four corners of the concrete thin plate (1.2); a bottom concrete cushion layer (4) is poured at the bottom of the foundation beam foundation trench (2) or the bottom of the bearing platform foundation pit (3), the single tire membrane bodies (1) are placed on the bottom concrete cushion layer (4) and the single tire membrane bodies (1) are close to each other to be arranged into a layer and attached to the side wall of the foundation trench (2) or the side wall of the foundation pit (3); every two adjacent and parallel single fetal membranes (1) are connected through an upper direct connecting piece and a lower direct connecting piece (5), each direct connecting piece (5) is provided with a left through hole and a right through hole (6), and each through hole (6) of each direct connecting piece (5) is connected with a bolt hole (1.3) of a corresponding corner on a corresponding single fetal membrane (1) through a locking bolt (7); every two adjacent and vertical single tire membranes (1) are connected through an upper corner connecting piece and a lower corner connecting piece (8), each corner connecting piece (8) is provided with a left through hole and a right through hole (6), and each through hole (6) of each corner connecting piece (8) is connected with a bolt hole (1.3) of a corresponding corner on a corresponding single tire membrane (1) through a locking bolt (7); an abutting device for preventing the single tire membrane body (1) from falling inwards is arranged between the lower part of each single tire membrane body (1) and the bottom concrete cushion layer (4).

2. A thin plate membrane assembly for a foundation beam or cap for pouring a concrete floor according to claim 1, wherein: each single tire membrane (1) placed on the bottom concrete cushion layer (4) is correspondingly provided with two iron expansion ribs (9), the bottom end of each iron expansion rib (9) is knocked into the bottom concrete cushion layer (4), and the upper end of each iron expansion rib is abutted against the inner surface of the corresponding single tire membrane (1).

3. A thin plate membrane assembly for a foundation beam or cap for pouring a concrete floor according to claim 1, wherein: be equipped with between fetal membrane monomer (1) of a lateral wall of pasting foundation ditch (3) or foundation ditch (2) and the fetal membrane monomer (1) of pasting foundation ditch (3) or the opposite lateral wall of foundation ditch (2) and support horizontal pole (10), two tip of supporting horizontal pole (10) respectively are equipped with one outer narrow interior wide wedge end (10.1), every wedge end (10.1) go up the cooperation have a sliding sleeve (11), be equipped with two latches (11.1) that are used for blocking the fetal membrane monomer (1) upper edge of homonymy on every sliding sleeve (11).

4. A thin plate membrane assembly for a foundation beam or cap for pouring a concrete floor according to claim 1, wherein: the inner surface of each single tire membrane body (1) attached to the side wall of the foundation trench (2) or the side wall of the foundation pit (3) is attached to another same single tire membrane body (1); the locking bolt (7) penetrating through the bolt hole (1.3) of the outer-layer tire membrane monomer (1) also penetrates through the bolt hole (1.3) of the inner-layer tire membrane monomer (1), and a nut screwed at the inner end of the locking bolt (7) presses the inner surface of the inner-layer tire membrane monomer (1).

5. A thin plate membrane assembly for a foundation beam or cap for pouring a concrete floor according to claim 1, wherein: another single tire membrane body (1) is placed above each single tire membrane body (1) placed on the bottom concrete cushion layer (4); the lower surface of the upper single tire membrane body (1) is provided with a clamping groove (13), the upper surface of the lower single tire membrane body (1) is provided with a raised line (14), the raised line (14) and the clamping groove (13) are mutually clamped and limited, and quick-hardening cement slurry is coated between the raised line and the clamping groove; the inner surface of the joint of the upper and the lower single tire membrane (1) is bonded with fiber mesh cloth (15) by quick-hardening cement slurry.