Combined mold for reserved hole of cast-in-place concrete floor

Abstract

The utility model discloses a cast-in-place concrete floor reserved hole combined die, which relates to the technical field of building construction dies, and comprises a floor bottom template and a sleeve penetrating through the floor bottom template, a split screw is inserted in the sleeve, both ends of the sleeve are provided with sealing discs, and the split screw enables the two sealing discs to move relatively. The sealing disc at the top seals the top of the sleeve, the sealing disc at the bottom is attached to a floor bottom formwork and seals the bottom of the sleeve, and a positioning assembly matched with the floor bottom formwork for positioning is arranged in the sleeve. The utility model can be repeatedly used, the rigidity can meet the construction requirement, the pipe diameter necking is not caused, the later pipe penetration is not influenced, the processing is not needed, the material can be saved, and the labor cost can be saved; positioning is conducted through the positioning assemblies and the positioning holes in the installation process, construction is convenient, and displacement is not prone to occurring; and the concrete forming quality cannot be damaged during dismantling, and the appearance quality is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to building construction mould technical field especially relates to cast-in-situ concrete floor reserved hole combined mould. BACKGROUND

[0002] In the building construction site, need on the building structure reserved hole to install water heating pipeline, reserved hole is the most important link, current reserved hole sleeve pipe mostly adopts UPVC pipe, according to floor thickness cutting, after cutting, on -site pre -buried, pre -buried material belongs to disposable use, when concrete has not reached the strength requirement, and demolish, and demolish the process will damage the hole edge corner, both waste material, and waste labor, lead to unnecessary cost loss.

[0003] Prior art problems and defects:

[0004] 1, need to carry out fixed cutting, after cutting, manual pre -buried, can not be repeatedly used, cause material waste, increase cost.

[0005] 2, the fixed form is relatively troublesome in the installation process, and there is the case of fixed not firm, easy to cause sleeve pipe displacement in the pouring concrete process.

[0006] 3, in the case where the floor thickness is larger, the UPVC pipe stiffness is insufficient, leads to pipe diameter necking, influences the later period and wears the pipe.

[0007] 4, when demolishing the reserved sleeve pipe, early demolishing the reserved sleeve pipe can cause damage to the concrete slab surface and hole, and the visual quality is poor. INVENTION CONTENTS

[0008] The utility model discloses a cast-in-situ concrete floor reserved hole combined mould which is provided to solve the problems in the prior art.

[0009] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0010] The cast-in-situ concrete floor reserved hole combined mould comprises a floor bottom formwork and a sleeve penetrating through the floor bottom formwork, a tensioning screw rod is arranged in the sleeve, both ends of the sleeve are provided with sealing discs, the tensioning screw rod moves the two sealing discs relative to each other, the sealing disc at the top seals the top of the sleeve, and the sealing disc at the bottom is attached to the floor bottom formwork and seals the bottom of the sleeve, a positioning assembly that cooperates with the floor bottom formwork is arranged in the sleeve, and the sleeve is connected to the floor bottom formwork through the positioning assembly and then the concrete base is poured.

[0011] Preferably, the outer surface of the sleeve is coated with a concrete release agent, and the sleeve and the sealing disc are both iron material components.

[0012] Preferably, the positioning assembly comprises a horizontal plate fixedly arranged inside the sleeve, the pair of pull screws are threaded through the horizontal plate and rotatably connected with the horizontal plate through bearings, and the two sealing discs are respectively embedded with nuts.

[0013] Preferably, the positioning assembly comprises a limiting screw, the limiting screw is threaded through the horizontal plate and rotatably connected with the horizontal plate through a bearing, and the two sealing discs are respectively threaded through the two ends of the limiting screw and are moved along the length direction of the limiting screw.

[0014] Preferably, the positioning assembly further comprises a threaded sleeve threaded on the outer wall of the limiting screw, a sliding groove is formed in the horizontal plate, a sliding seat is slidably arranged in the sliding groove, a connecting rod is hingedly arranged between the threaded sleeve and the sliding seat, and a positioning rod is fixedly connected to the side of the sliding seat away from the connecting rod.

[0015] Preferably, a reserved hole is formed in the floor bottom formwork, a positioning hole is formed at the edge of the reserved hole, and the end of the positioning rod away from the sliding seat is threaded through the sleeve and inserted into the positioning hole to realize positioning.

[0016] Preferably, the threads at the two ends of the pair of pull screws are oppositely arranged, and the pair of pull screws can drive the two sealing discs to move close to or away from each other.

[0017] Preferably, the sleeve is drilled and provided with a movable handle, and the movable handle can be moved after being connected with the sleeve.

[0018] Compared with the prior art, the utility model has the advantages and positive effects that:

[0019] 1、In the utility model, the sleeve and the sealing disc are made of iron material and can be repeatedly used after being made, the rigidity can still meet the construction requirement in the case that the floor thickness is large, the pipe diameter necking is not caused, the pipe is not affected in the later period, and the processing is not necessary, so that the material and labor cost can be saved.

[0020] 2、In the utility model, the positioning is carried out through the cooperation of the positioning assembly and the positioning hole on the floor bottom formwork in the installation process, so that the construction is simple, easy and convenient, and the displacement is not easy.

[0021] 3、In the utility model, the sleeve can be separated from the concrete base body and cannot damage the concrete forming quality by lightly knocking the sleeve due to the previous brushing of the concrete release agent, and the visual quality is good. DRAWINGS

[0022] Figure 1 The utility model provides a whole state diagram during the construction of the combined type mold for the reserved hole of the cast-in-place concrete floor.

[0023] Figure 2 This utility model provides a combined mold for pre-reserved holes in cast-in-place concrete floor slabs. Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 3 This utility model provides a schematic diagram of the sleeve structure of a combined mold for pre-reserved holes in cast-in-place concrete floor slabs.

[0025] Figure 4 This utility model provides a schematic diagram of the positioning component structure of a combined mold for pre-reserved holes in cast-in-place concrete floor slabs.

[0026] Figure 5 This utility model provides a schematic diagram of the bottom formwork structure of a pre-reserved hole combination mold for cast-in-place concrete floor slabs.

[0027] Legend: 1. Floor slab bottom formwork; 11. Reserved opening; 12. Positioning hole; 2. Sleeve; 3. Tie rod; 4. Sealing disc; 5. Positioning component; 51. Horizontal plate; 52. Limiting screw; 53. Screw sleeve; 54. Slide groove; 55. Slide seat; 56. Connecting rod; 57. Positioning rod; 6. Concrete substrate; 7. Nut; 8. Movable handle. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0030] like Figures 1-5 As shown, this utility model provides a combined mold for pre-reserved holes in cast-in-place concrete floor slabs, including a floor slab bottom template 1 and a sleeve 2 passing through the floor slab bottom template 1. A tie rod 3 is inserted inside the sleeve 2, and a sealing disc 4 is provided at both ends of the sleeve 2. The tie rod 3 causes the two sealing discs 4 to move relative to each other. The top sealing disc 4 closes the top of the sleeve 2, and the bottom sealing disc 4 fits against the floor slab bottom template 1 and closes the bottom of the sleeve 2. A positioning component 5 is provided inside the sleeve 2 to cooperate with the floor slab bottom template 1 for positioning. After the sleeve 2 is connected to the floor slab bottom template 1 through the positioning component 5, the concrete base 6 is poured.

[0031] In this embodiment, the outer surface of the sleeve 2 is coated with concrete release agent, and both the sleeve 2 and the sealing disc 4 are made of iron.

[0032] In this embodiment, the positioning assembly 5 comprises a horizontal plate 51 fixedly arranged inside the sleeve 2, the tensioning screw rod 3 penetrates the horizontal plate 51 and is rotationally connected with the horizontal plate 51 through a bearing, and the two sealing discs 4 are both embedded with the nuts 7, and the two nuts 7 are respectively threadedly connected to the two ends of the tensioning screw rod 3.

[0033] In this embodiment, the positioning assembly 5 comprises a limiting screw rod 52, the limiting screw rod 52 penetrates the horizontal plate 51 and is rotationally connected with the horizontal plate 51 through a bearing, the two ends of the limiting screw rod 52 respectively penetrate the two sealing discs 4, and the two sealing discs 4 are both moved along the length direction of the limiting screw rod 52, and the two sealing discs 4 are linearly moved when the sleeve 2 is sealed.

[0034] In this embodiment, the positioning assembly 5 further comprises a screw sleeve 53 threadedly connected to the outer wall of the limiting screw rod 52, the horizontal plate 51 is provided with a sliding groove 54, a sliding seat 55 is slidably arranged in the sliding groove 54, a connecting rod 56 is hingedly arranged between the screw sleeve 53 and the sliding seat 55, and a positioning rod 57 is fixedly connected to the side of the sliding seat 55 away from the connecting rod 56, the limiting screw rod 52 is rotated to drive the screw sleeve 53 to move the sliding seat 55 in the sliding groove 54, and the sliding seat 55 drives the positioning rod 57 to move for positioning.

[0035] In this embodiment, the floor bottom formwork 1 is provided with a reserved hole 11, the edge of the reserved hole 11 is provided with a positioning hole 12, one end of the positioning rod 57 away from the sliding seat 55 penetrates the sleeve 2 and is inserted into the positioning hole 12 to realize positioning, and the positioning is realized through the cooperation of the positioning rod 57 and the positioning hole 12.

[0036] In this embodiment, the threads of the two ends of the tensioning screw rod 3 are oppositely arranged, the tensioning screw rod 3 realizes that the two nuts 7 respectively drive the two sealing discs 4 to move close to or away from each other, and the two sealing discs 4 are synchronously moved to seal the sleeve 2 up and down.

[0037] In this embodiment, the sleeve 2 is drilled and provided with a movable handle 8, the movable handle 8 is movable after being connected with the sleeve 2, and the sleeve 2 is convenient to carry through the movable handle 8. The movable handle 8 can be removed or installed according to the use situation, provided that the sleeve 2 passes through the reserved hole 11 is not affected.

[0038] The use method and working principle of the device are as follows:

[0039] Step one: after the floor bottom formwork 1 is paved, according to the arrangement in the construction drawing, the cross lines are accurately drawn on the corresponding positions of the floor bottom formwork 1, the reserved hole 11 is drilled at the center point of the cross lines by using a hole opener, and the positioning hole 12 is drilled at the edge of the reserved hole 11 by using a pistol drill;

[0040] Step two: the concrete release agent is applied on the corresponding structure, so as to facilitate the subsequent demolding.

[0041] Step three: insert the sleeve 2 into the reserved hole 11, then position the positioning rod 57 with the positioning hole 12, move the sleeve 53 downward by rotating the limiting screw 52, the sleeve 53 pushes the sliding seat 55 to move in the sliding groove 54 through the connecting rod 56, the sliding seat 55 drives the positioning rod 57 to pass through the sleeve 2 and insert into the positioning hole 12, which plays a fixing role, is convenient for construction, is not easy to displace, avoids the case that the sleeve 2 is dislocated due to poor fixing during pouring concrete;

[0042] Step four: rotate the tensioning screw 3, the tensioning screw 3 moves the two nuts 7 to approach each other, the upper and lower sealing discs 4 are driven by the nuts 7 to move under the limiting of the limiting screw 52, until the top sealing disc 4 closes the top of the sleeve 2, and the bottom sealing disc 4 closes the bottom of the sleeve 2 by abutting against the floor bottom formwork 1;

[0043] Step five: pour the concrete base body 6 according to the design requirements;

[0044] Step six: after the pouring of the concrete base body 6 is completed, reverse rotate the limiting screw 52 to reset the positioning rod 57 and separate it from the positioning hole 12, due to the previous brushing of the concrete release agent, the sleeve 2 can be peeled off from the concrete base body 6 by tapping.

[0045] In conclusion, the sleeve 2 and the sealing disc 4 in the utility model are both made of iron material and can be reused after being manufactured, in the case of large floor thickness, the rigidity can still meet the construction requirements, without causing pipe diameter necking and affecting the later pipe penetration, without the need for further processing, which can save materials and labor costs; during installation, the positioning is performed through the cooperation of the positioning assembly 5 and the positioning hole 12 on the floor bottom formwork 1, which is simple and easy to operate and facilitates construction and is not easy to displace; when disassembled, the sleeve 2 can be peeled off from the concrete base body 6 by tapping, without damaging the concrete forming quality and with good visual quality.

[0046] The above is only a preferred embodiment of the utility model, and does not limit other forms of the utility model, any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model still belongs to the protection scope of the technical scheme of the utility model.

Claims

1. A modular mold for pre-reserved holes in cast-in-place concrete floor slabs, characterized in that: The sleeve (2) includes a floor slab bottom formwork (1) and a sleeve (2) passing through the floor slab bottom formwork (1). A tie rod (3) is inserted inside the sleeve (2). Both ends of the sleeve (2) are provided with sealing discs (4). The tie rod (3) causes the two sealing discs (4) to move relative to each other. The top sealing disc (4) closes the top of the sleeve (2), and the bottom sealing disc (4) fits the floor slab bottom formwork (1) and closes the bottom of the sleeve (2). A positioning component (5) is provided inside the sleeve (2) to cooperate with the floor slab bottom formwork (1) for positioning. After the sleeve (2) is connected to the floor slab bottom formwork (1) through the positioning component (5), a concrete base (6) is poured.

2. The pre-reserved hole combination mold for cast-in-place concrete floor slabs according to claim 1, characterized in that: The outer surface of the sleeve (2) is coated with concrete release agent, and both the sleeve (2) and the sealing disc (4) are made of iron.

3. The pre-reserved hole combination mold for cast-in-place concrete floor slabs according to claim 1, characterized in that: The positioning component (5) includes a horizontal plate (51) fixedly installed inside the sleeve (2), the pull screw (3) passes through the horizontal plate (51) and rotates with the horizontal plate (51) through a bearing, and nuts (7) are embedded on the upper and lower sealing discs (4), and the two nuts (7) are threaded to both ends of the pull screw (3).

4. The pre-reserved hole combination mold for cast-in-place concrete floor slabs according to claim 3, characterized in that: The positioning component (5) includes a limiting screw (52), which passes through the horizontal plate (51) and is rotated with the horizontal plate (51) through a bearing. The two ends of the limiting screw (52) pass through two sealing discs (4), and the two sealing discs (4) move along the length direction of the limiting screw (52).

5. The pre-reserved hole combination mold for cast-in-place concrete floor slabs according to claim 4, characterized in that: The positioning component (5) further includes a threaded sleeve (53) threaded to the outer wall of the limiting screw (52), a sliding groove (54) is provided on the horizontal plate (51), a sliding seat (55) is slidably arranged in the sliding groove (54), a connecting rod (56) is hinged between the threaded sleeve (53) and the sliding seat (55), and a positioning rod (57) is fixedly connected to the side of the sliding seat (55) away from the connecting rod (56).

6. The combined mold for pre-reserved holes in cast-in-place concrete floor slabs according to claim 5, characterized in that: The floor slab bottom template (1) has a reserved opening (11), and a positioning hole (12) is provided at the edge of the reserved opening (11). The end of the positioning rod (57) away from the slide (55) passes through the sleeve (2) and is inserted into the positioning hole (12) to achieve positioning.

7. The pre-reserved hole combination mold for cast-in-place concrete floor slabs according to claim 3, characterized in that: The threads at both ends of the pull screw (3) are set in opposite directions, and the pull screw (3) enables the two nuts (7) to drive the two sealing discs (4) to move closer to each other or further away from each other.

8. The pre-reserved hole combination mold for cast-in-place concrete floor slabs according to claim 1, characterized in that: The sleeve (2) is drilled and fitted with a movable handle (8), which is movable after being connected to the sleeve (2).

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