CN214329886U - Prefabricated waterproof bank template structure that returns - Google Patents

Abstract

The utility model discloses a bank template structure is returned in prefabricated waterproof, including returning the bank template, return the bank template and include top locating plate, bottom plate and four curb plates, curb plate and bottom plate pass through draw-in groove structure joint, and adjacent curb plate passes through hasp structure joint, and the top locating plate sets up in the curb plate top, is equipped with the locating hole that a plurality of is used for passing connecting reinforcement on the locating plate of top. The utility model provides a bank template structure is returned to prefabricated water-proofing, can realize the waterproof advance prefabrication of returning the bank, when making waterproof bank and the integrative pouring of plate girder of returning, do not need extra formwork, the installation is simple, waters and pours the high quality.

Description

Prefabricated waterproof bank template structure that returns

Technical Field

The utility model belongs to the technical field of the building technique and specifically relates to a prefabricated waterproof bank template structure that returns is related to.

Background

At the lower mouths of walls such as kitchens, toilets, balconies and the like in various buildings at present, in order to achieve the waterproof purpose, a concrete reversed bank is widely applied, the existing construction of the reversed bank is divided into two construction methods, the first method is to adopt one-time pouring with a floor slab when pouring the reversed bank, the reversed bank is poured by a hanging formwork support mold, and the hanging formwork support mold has the common fault that the molding quality is difficult to control, so the molding quality of the poured reversed bank cannot be ensured, and the attractiveness is influenced; the second method is that the floor slab is poured firstly, and the reverse ridge is poured for a single second time, but due to the reason of the second pouring, the combination integrity of the reverse ridge and the floor slab is not good enough, and under the condition that an external waterproof layer is aged, the phenomenon that water permeates into a wall body is very likely to occur, and the waterproof effect in a kitchen, a bathroom and a balcony is difficult to ensure thoroughly; therefore, the two existing construction methods have some disadvantages.

Chinese patent application publication No. CN210658744U, published as 2020, 06, 02, entitled "a concrete reversed bank waterproof structure", discloses a concrete reversed bank waterproof structure, which comprises a floor slab and a reversed bank, wherein the floor slab is of a reinforced concrete structure, the reversed bank is of a plain concrete structure, a water-stopping steel plate is pre-embedded at the joint of the floor slab and the reversed bank, and the water-stopping steel plate comprises an upper folded plate, a lower folded plate and a vertical plate between the upper folded plate and the lower folded plate to form a water-stopping steel plate with a cross section in a shape of a "Z"; the lower folded plate of the water stop steel plate is horizontally arranged on the surface of the upper row of steel bars in the floor slab and is fixedly connected with the upper folded plate, the vertical plate and the upper folded plate of the water stop steel plate protrude out of the floor slab and are embedded into the reverse ridge, the water stop steel plate is arranged in a through manner along the length direction of the reverse ridge, the reverse ridge is secondarily poured on the floor slab pre-buried with the water stop steel plate, and a brick wall structure is built on the upper portion of the reverse ridge. But the structure of this waterproof construction is complicated, and the construction is inconvenient.

Disclosure of Invention

The utility model discloses an overcome among the prior art anti-bank independent secondary and water infiltration entering wall internal phenomenon probably appears watering, be difficult to thoroughly guarantee between kitchen and bathroom and the balcony not enough of water-proof effects, provide a prefabricated waterproof bank template structure that returns, can realize the waterproof advance prefabrication of returning the bank, when making waterproof bank and the integrative pouring of plate girder of returning, do not need extra formwork, the installation is simple, waters and pours the high quality.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a bank template structure is returned in prefabricated waterproof, is including returning the bank template, returns the bank template and includes top locating plate, bottom plate and four curb plates, and curb plate and bottom plate pass through draw-in groove structure joint, and adjacent curb plate passes through hasp structure joint, and the top locating plate setting is equipped with a plurality of locating hole that is used for passing connecting reinforcement on the locating plate of top in curb plate top. The back bank template can be used for preventing water from returning bank prefabrication and forming, the bottom plate and the four side plates are assembled into an integral template during use, then concrete is poured, after the preset height is reached, the top positioning plate is covered, the connecting steel bars are inserted according to the positions of the positioning holes, and after the concrete is solidified, the top positioning plate, the bottom plate and the side plates are detached. The positioning hole in the top positioning plate can position the connecting steel bar, and meanwhile, the bending structure is arranged at the top of the connecting steel bar, so that the connecting steel bar is inserted into the positioning hole, the bending structure is in contact with the positioning hole, and the insertion depth of the connecting steel bar can be positioned.

Preferably, one side of each positioning hole is provided with a communicating groove, the communicating groove and the corresponding positioning hole are larger than the positioning hole in size. The structure is convenient for demolish the top locating plate after the concrete solidifies, avoids connecting reinforcement to block the locating hole, only needs to sideslip top locating plate to one side, makes connecting reinforcement get into the intercommunication groove, again from the intercommunication groove demolish can.

Preferably, the inner side wall of the side plate is provided with a pouring marking. The structure facilitates control of the amount of concrete poured.

Preferably, a surface treatment plate is arranged on the inner side wall of one side plate, the surface of the surface treatment plate is uneven, and the surface treatment plate is clamped with the side plate. The structure can make one side of the waterproof back ridge have an uneven surface, and saves the surface roughening treatment of the contact part of the waterproof back ridge and the concrete wall.

Preferably, one side of the bottom plate is provided with an expansion hole, the back sill template further comprises a blocking piece matched with the expansion hole and an expansion box matched with the expansion hole, and one side of the expansion box facing the expansion hole is provided with an opening. The structure can be installed by selecting a baffle plate or an expansion box to be matched with the expansion hole according to requirements. When selecting the separation blade, the extension hole is stopped up, and waterproof bank that returns can normally pour, when selecting the expansion box, the concrete can get into the expansion box and fill up it during pouring, pours complete back, and the position of extension hole is for forming the protruding waterproof bulge who returns the bank of a salient, and this part is connected with the concrete wall, can increase joint strength and sealed effect.

Preferably, the expansion tank is made of plastic. The structure is convenient for the removal of the expansion box, and the expansion box can be cut off when the expansion box is difficult to remove.

Preferably, the expansion box is made of metal.

The utility model has the advantages that: (1) the prefabrication of the waterproof return ridge can be realized, so that when the waterproof return ridge and the plate girder are integrally cast, an additional formwork is not needed, the installation is simple, and the casting and casting quality is high; (2) the surface treatment plate enables one side of the waterproof back ridge to be provided with an uneven surface, so that the surface roughening treatment of the contact part of the waterproof back ridge and the concrete wall is saved; (3) the expansion holes and the expansion boxes enable the template to have expansibility, and whether the convex parts are integrally cast on the waterproof back sills or not is selected according to needs.

Drawings

Fig. 1 is a schematic structural view of a middle waterproof back sill of the present invention;

FIG. 2 is a schematic structural view of a top positioning plate according to the present invention;

fig. 3 is a schematic view of a first structure of the middle sill template of the present invention;

fig. 4 is a second schematic structural view of the middle sill-returning template of the present invention.

In the figure: the anti-water back sill comprises a waterproof back sill 1, a concrete body 1.1, connecting steel bars 1.2, a back sill template 2, a top positioning plate 2.1, positioning holes 2.1.1, a communicating groove 2.1.2, a bottom plate 2.2, expansion holes 2.2.1, side plates 2.3, a surface treatment plate 2.4, blocking pieces 2.5 and an expansion box 2.6.

Detailed Description

The invention is further described with reference to the accompanying drawings and specific embodiments.

Example 1:

as shown in fig. 2 and 3, a prefabricated waterproof bank template structure that returns, including returning bank template 2, it includes top locating plate 2.1, bottom plate 2.2 and four curb plates 2.3 to return bank template 2, curb plate 2.3 and bottom plate 2.2 pass through draw-in groove structure joint, adjacent curb plate 2.3 passes through hasp structure joint, top locating plate 2.1 sets up in curb plate 2.3 top, as shown in fig. 2, be equipped with a plurality of locating hole 2.1.1 that is used for passing connecting reinforcement 1.2 on the top locating plate 2.1. One side of the positioning hole 2.1.1 is provided with a communicating groove 2.1.2, the communicating groove 2.1.2 is corresponding to the positioning hole 2.1.1, and the size of the communicating groove 2.1.2 is larger than that of the positioning hole 2.1.1. One side of the positioning hole 2.1.1 is provided with a communicating groove 2.1.2, the communicating groove 2.1.2 is corresponding to the positioning hole 2.1.1, and the size of the communicating groove 2.1.2 is larger than that of the positioning hole 2.1.1. Be equipped with surface treatment board 2.4 on the inside wall of one of them curb plate 2.3, surface treatment board 2.4's surface irregularity, surface treatment board 2.4 and curb plate 2.3 joint. One side of the bottom plate 2.2 is provided with an expanding hole 2.2.1, the back sill template 2 further comprises a baffle plate 2.5 matched with the expanding hole 2.2.1 and an expanding box 2.6 matched with the expanding hole 2.2.1, and one side of the expanding box 2.6 facing the expanding hole 2.2.1 is provided with an opening. The baffle plate 2.5 or the expansion box 2.6 can be selected to be matched with the expansion hole 2.2.1 according to requirements. The expansion tank 2.6 is made of plastic.

The back sill template 2 can be used for preventing water from returning to the prefabrication and forming of the sill 1, the bottom plate 2.2 and the four side plates 2.3 are assembled into an integral template during use, then concrete is poured, after the preset height is reached, the top positioning plate 2.1 is covered, the connecting steel bars 1.2 are inserted according to the positions of the positioning holes 2.1.1, and after the concrete is solidified, the top positioning plate 2.1, the bottom plate 2.2 and the side plates 2.3 are detached. The locating hole 2.1.1 on the top locating plate 2.1 can fix a position connecting reinforcement 1.2 position, simultaneously because connecting reinforcement 1.2 top is equipped with bending structure, inserts connecting reinforcement 1.2 into locating hole 2.1.1, makes bending structure contact locating hole 2.1.1, can fix a position connecting reinforcement 1.2 depth of insertion. The surface treatment plate 2.4 can enable one side of the waterproof back ridge 1 to be provided with an uneven surface, and surface roughening treatment of a contact part of the waterproof back ridge and a concrete wall is saved. The baffle plate 2.5 or the expansion box 2.6 can be selected to be matched with the expansion hole 2.2.1 according to requirements. When selecting separation blade 2.5, extension hole 2.2.1 is stopped up, and waterproof bank 1 that returns can normally pour, when selecting extension case 2.6, the concrete can get into extension case 2.6 and fill up it when pouring, pours completely, and the position of extension hole 2.2.1 is for forming a protruding part that stands out waterproof bank 1 that returns, and this part is connected with the concrete wall, can increase joint strength and sealed effect.

Example 2:

a prefabricated waterproof back sill construction method comprises a waterproof back sill 1, as shown in figure 1, wherein the waterproof back sill 1 comprises a concrete body 1.1 and connecting steel bars 1.2 extending out of the concrete body 1.1; further comprising the steps of:

a. prefabricated waterproof bank 1 that returns: pouring concrete in the back sill template 2, inserting the connecting steel bars 1.2, and taking out the waterproof back sill 1 after the concrete is solidified;

b. and (3) waterproof back ridge 1 installation: binding steel bars on the plate girder, arranging the waterproof return sills 1 in sequence to enclose a waterproof area, fixing connecting steel bars 1.2 on the waterproof return sills 1 downwards, and supporting and fixing the joints of the waterproof return sills 1 by using templates;

c. pouring the plate girder: pouring concrete on the plate girder to enable the height of the concrete to exceed the bottom edge of the concrete body 1.1 of the waterproof back ridge 1;

d. pouring a joint: pouring concrete at the joint of the waterproof reversed bank 1;

e. dismantling a joint template: after the concrete is solidified, taking down the template at the joint;

the strength of the concrete is not lower than C20; when a concrete wall is arranged, the height of the part of the waterproof back ridge 1 connected with the concrete wall is increased by 15-25 cm. When a concrete wall is available, the contact part of the waterproof returning bank 1 and the concrete wall is subjected to surface roughening treatment.

According to the technical scheme, the construction mode of the in-situ concrete casting of the waterproof back ridge 1 is changed into the construction mode of mounting the precast concrete component, and the construction quality is difficult to ensure due to the fact that the processes of formwork erecting, inaccurate reinforcing steel bar embedding, concrete casting and the like are carried out during secondary concrete construction, so that the construction method can prevent the in-situ secondary concrete casting quality from failing to meet the integrity requirement of leakage prevention and seepage prevention; the construction method fully utilizes the excess materials of the on-site primary structure concreting to manufacture, thereby reducing the cost; the construction of the secondary structure masonry can be carried out after the main concrete structure is finished, so that the construction period is saved; the construction of secondary structure brickwork just can be carried out to main part concrete structure end, the difficult problem of interacting can not appear in the work and plant cooperation.

The utility model has the advantages that: (1) the prefabrication of the waterproof return ridge can be realized, so that when the waterproof return ridge and the plate girder are integrally cast, an additional formwork is not needed, the installation is simple, and the casting and casting quality is high; (2) the surface treatment plate enables one side of the waterproof back ridge to be provided with an uneven surface, so that the surface roughening treatment of the contact part of the waterproof back ridge and the concrete wall is saved; (3) the expansion holes and the expansion boxes enable the template to have expansibility, and whether the convex parts are integrally cast on the waterproof back sills or not is selected according to needs.

Claims (7)

1. The utility model provides a bank template structure is returned in prefabricated waterproof, characterized by, returns the bank template including returning the bank template, returns the bank template and includes top locating plate, bottom plate and four curb plates, and curb plate and bottom plate pass through draw-in groove structure joint, and adjacent curb plate passes through hasp structure joint, and the top locating plate setting is equipped with a plurality of locating hole that is used for passing connecting reinforcement on the locating plate of top in curb plate top.

2. The prefabricated waterproof back sill template structure of claim 1, wherein one side of the positioning hole is provided with a communication groove, the communication groove is connected with the corresponding positioning hole, and the size of the communication groove is larger than that of the positioning hole.

3. The prefabricated waterproof sill-returning formwork structure of claim 1, wherein pouring marks are arranged on the inner side walls of the side plates.

4. The prefabricated waterproof sill-returning formwork structure of claim 1, 2 or 3, wherein a surface treatment plate is arranged on the inner side wall of one of the side plates, the surface of the surface treatment plate is uneven, and the surface treatment plate is clamped with the side plate.

5. The prefabricated waterproof back sill template structure of claim 1, 2 or 3, wherein one side of the bottom plate is provided with an expansion hole, the back sill template further comprises a blocking piece matched with the expansion hole and an expansion box matched with the expansion hole, and one side of the expansion box facing the expansion hole is provided with an opening.

6. The prefabricated water-proof back sill formwork structure of claim 5, wherein the extension box is made of plastic.

7. The prefabricated waterproof back sill formwork structure of claim 5, wherein the extension box is made of metal.

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