Hollow floor slab core mold fixing device

Abstract

The utility model relates to the technical field of building construction, and discloses a hollow floor slab core mold fixing device which comprises a lower mold plate, a plurality of slab bottom steel bars are fixedly arranged on the upper surface of the lower mold plate, the slab bottom steel bars are evenly distributed on the surface of the lower mold plate, the lower surface of the lower mold plate is fixedly connected with a supporting steel pipe, and the supporting steel pipe is fixedly connected with the lower mold plate. A core mold box is placed on the upper surface of the lower mold plate, and a limiting through hole is formed in the center of the upper surface of the core mold box. According to the utility model, the limiting screw rod and the limiting assembly are arranged on the surface of the lower template, when the core mold of the hollow floor slab is fixed, the limiting screw rod is firstly fixed on the surface of the lower template, then the limiting screw rod penetrates through the limiting through hole in the surface of the core mold box, and then the positioning clamping plate is sleeved on the surface of the limiting screw rod; and the positioning clamping plates enter the strip-shaped grooves, so that the positioning clamping plates abut against and limit the surface of the core mold box, operation is convenient and fast, and the anti-floating effect of the core mold box in the concrete pouring process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and more specifically to a hollow floor slab core formwork fixing device. Background Art

[0002] Cast-in-place concrete hollow floor is an emerging concrete construction technology that is in a critical period of development. It has many advantages and characteristics. It is a high-tech structural system with superior performance and price and more humane. It is a major innovation in my country's building structure field and has great social and economic value. The research on cast-in-place reinforced concrete hollow floor is also a key scientific research project of the domestic "863" plan. It is a new cast-in-place structural system after ordinary beam-slab floor, beamless floor system, ribbed floor system, and unbonded prestressed beamless floor. It is a major innovation in my country's construction field.

[0003] However, there are still many drawbacks in the process of pouring concrete on the core mold of the hollow floor slab, such as the small size and mass of the core molds, which are independent of each other, and the difficulty in handling the anti-buoyancy; the upper mold and the lower mold of the core membrane shell lack stable limit when fixed, and the workability and vibration density of the concrete are high, which makes the pouring of concrete difficult. Therefore, it is necessary to design a hollow floor slab core mold fixing device to assist construction personnel in pouring the core mold. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a hollow floor core mold fixing device, which has the advantages of high stability, good adjustability, etc., to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a hollow floor core mold fixing device, comprising a lower template, the upper surface of the lower template is fixedly provided with a plurality of plate bottom steel bars, the plurality of plate bottom steel bars are evenly arranged on the surface of the lower template, the lower surface of the lower template is fixedly connected with a supporting steel pipe, a core mold box is placed on the upper surface of the lower template, a limited position through hole is provided at the center of the upper surface of the core mold box, a limited position screw is inserted and installed on the inner wall of the limited position through hole, and the bottom end of the limited position screw extends to the surface of the lower template;

[0006] A limiting component is sleeved and installed on the surface of the limiting screw, and the limiting component includes a positioning card plate and a limiting nut. The positioning card plate is in a cross-shaped structure, and a mounting socket is provided on the central surface of the positioning card plate. A cross-shaped strip groove is provided on the upper surface of the core mold box. The position of the positioning card plate corresponds to the strip groove, and the size of the strip groove matches the positioning card plate. The positioning card plate can move up and down on the surface of the limiting screw. The positioning card plate is used to limit the top of the core mold box. When fixing the core mold of the hollow floor slab, the limiting screw is used to fix it on the surface of the lower mold plate, and then the limiting through hole on the surface of the core mold box is passed through the limiting screw, and then the positioning card plate is sleeved on the surface of the limiting screw, so that the positioning card plate enters the interior of the strip groove, thereby using the positioning card plate to tighten and limit the surface of the core mold box.

[0007] Furthermore, the limiting nut is threadedly connected to the surface of the limiting screw, and the lower surface of the limiting nut overlaps the upper surface of the positioning clamping plate, and the limiting nut can play a limiting and tightening role on the positioning clamping plate.

[0008] Furthermore, four reinforcement limit holes are opened on the surface of the positioning clamp, and the four reinforcement limit holes are distributed on the surface of the positioning clamp in a cross-shaped array. A plurality of criss-crossing plate top steel bars are fixedly arranged on the upper surface of the lower template.

[0009] Furthermore, a limiting wire is inserted into the interior of the reinforcement limiting hole, and one end of the limiting wire away from the reinforcement limiting hole is bound to the surface of the top steel bar of the plate, and the limiting wire is used to limit the core mold box in the horizontal direction.

[0010] Furthermore, the bottom end of the limiting screw is fixedly connected to a supporting bottom block, and a fixing hole is provided on the surface of the supporting bottom block.

[0011] Furthermore, two mutually symmetrical threading holes are provided on the surface of the lower template, and positioning tie straps are passed through the threading holes, and the positioning tie straps are wound from the bottom of the supporting steel pipe to the top of the lower template.

[0012] Furthermore, the positioning tie passes through the fixing hole on the surface of the supporting bottom block, and the positioning tie is used to fix the supporting bottom block and the limiting screw on the surface of the lower template.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model arranges a limiting screw and a limiting assembly on the surface of the lower template. When fixing the core mold of the hollow floor slab, the limiting screw is first fixed to the surface of the lower template, and then the limiting through hole on the surface of the core mold box is passed through the limiting screw, and then the positioning card is sleeved on the surface of the limiting screw, so that the positioning card enters the interior of the strip groove, so that the surface of the core mold box is pressed against and limited by the positioning card, which is not only convenient to operate, but also improves the anti-floating effect of the core mold box during the concrete pouring process.

[0015] 2. The utility model provides reinforced limiting holes and limiting wires on the surface of the positioning card plate, and the limiting wires can be used to bind and limit the positioning card plate and the top steel bars on the left and right sides of the plate, so that the core mold box can be horizontally limited, thereby further improving the stability of the core mold box in the horizontal direction; by setting a limiting screw, the position of the positioning card plate can be adjusted according to the height of the core mold box, so that it is suitable for fixing core mold boxes of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0018] Figure 3 for Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 4 This is a schematic diagram of the front section structure of the positioning clamp of the utility model;

[0020] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the lower template of the utility model.

[0021] The accompanying drawings are marked as follows: 1. Lower template; 2. Bottom steel bar; 3. Support steel pipe; 4. Core mold box; 5. Limit through hole; 6. Limit screw; 7. Positioning clamp; 8. Limit nut; 9. Mounting socket; 10. Strip groove; 11. Reinforcement limit hole; 12. Top steel bar; 13. Limit wire; 14. Support bottom block; 15. Fixing hole; 16. Wire threading hole; 17. Positioning tie. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The hollow floor core mold fixing device involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0023] Reference Figure 1-5 The utility model provides a hollow floor core mold fixing device, including a lower template 1, a plurality of slab bottom steel bars 2 are fixedly arranged on the upper surface of the lower template 1, and the plurality of slab bottom steel bars 2 are evenly arranged on the surface of the lower template 1, and a supporting steel pipe 3 is fixedly connected to the lower surface of the lower template 1, and a core mold box 4 is placed on the upper surface of the lower template 1, and a limited through hole 5 is opened at the center of the upper surface of the core mold box 4, and a limited screw 6 is inserted and installed on the inner wall of the limited through hole 5, and the bottom end of the limited screw 6 extends to the surface of the lower template 1, and the bottom end of the limited screw 6 is fixedly connected to a supporting bottom block 14, and a fixing hole 15 is opened on the surface of the supporting bottom block 14.

[0024] The surface of the lower template 1 is provided with two symmetrical threading holes 16, the threading holes 16 are provided with positioning tie straps 17, and the positioning tie straps 17 are wound from the bottom of the supporting steel pipe 3 to the top of the lower template 1, the positioning tie straps 17 pass through the fixing holes 15 on the surface of the supporting bottom block 14, and the positioning tie straps 17 are used to fix the supporting bottom block 14 and the limiting screw 6 on the surface of the lower template 1.

[0025] A limiting assembly is sleeved and installed on the surface of the limiting screw 6, and the limiting assembly includes a positioning clamp 7 and a limiting nut 8. The positioning clamp 7 is a cross-shaped structure, and a mounting hole 9 is provided on the central surface of the positioning clamp 7, and a cross-shaped strip groove 10 is provided on the upper surface of the core mold box 4.

[0026] The position of the positioning card plate 7 corresponds to the strip groove 10, and the size of the strip groove 10 matches the positioning card plate 7. The positioning card plate 7 can move up and down on the surface of the limiting screw 6. The positioning card plate 7 is used to limit the top of the core mold box 4. The limiting nut 8 is threadedly connected to the surface of the limiting screw 6, and the lower surface of the limiting nut 8 overlaps the upper surface of the positioning card plate 7. The limiting nut 8 can limit and tighten the positioning card plate 7. By setting the limiting screw 6 and the limiting nut 8, the positioning card plate 7 can be adjusted up and down on the surface of the limiting screw 6 according to the height of the core mold box 4, and then the limiting nut 8 is used to adjust the position of the positioning card plate 7, so that it is suitable for fixing core mold boxes 4 of different sizes.

[0027] It is worth mentioning that by arranging a limiting screw 6 and a limiting assembly on the surface of the lower template 1, when fixing the core mold of the hollow floor slab, the limiting screw 6 is first fixed to the surface of the lower template 1, and then the limiting through hole 5 on the surface of the core mold box 4 is passed through the limiting screw 6, and then the positioning card plate 7 is sleeved on the surface of the limiting screw 6, so that the positioning card plate 7 enters the interior of the strip groove 10, so that the surface of the core mold box 4 is pressed against and limited by the positioning card plate 7, which is not only convenient to operate, but also improves the anti-floating effect of the core mold box 4 during the concrete pouring process.

[0028] Four reinforcement limit holes 11 are opened on the surface of the positioning clamp plate 7, and the four reinforcement limit holes 11 are distributed in a cross-shaped array on the surface of the positioning clamp plate 7. A plurality of criss-crossed plate top steel bars 12 are fixedly arranged on the upper surface of the lower template 1, and the bottom of the plate top steel bars 12 is supported and fixed by a plurality of horse stool bars.

[0029] A limiting wire 13 is inserted into the reinforcing limiting hole 11 , and one end of the limiting wire 13 away from the reinforcing limiting hole 11 is bound to the surface of the plate top steel bar 12 , and the limiting wire 13 is used to limit the core mold box 4 in the horizontal direction.

[0030] It is worth mentioning that by providing reinforced limiting holes 11 and limiting wires 13 on the surface of the positioning card plate 7, the limiting wires 13 can be used to bind and limit the positioning card plate 7 and the top steel bars 12 on the left and right sides of the plate, and the core mold box 4 can be horizontally limited, thereby further improving the stability of the core mold box 4 on the lower mold plate 1.

[0031] Finally, it should be noted that the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model. The above description is only a preferred embodiment of the present utility model and is not used to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A hollow floor core mold fixing device, comprising a lower mold plate (1), wherein a plurality of slab bottom steel bars (2) are fixedly arranged on the upper surface of the lower mold plate (1), and the plurality of slab bottom steel bars (2) are evenly arranged on the surface of the lower mold plate (1), characterized in that: The lower surface of the lower template (1) is fixedly connected with a supporting steel pipe (3), the upper surface of the lower template (1) is provided with a core mold box (4), a limiting through hole (5) is provided at the center of the upper surface of the core mold box (4), a limiting screw (6) is inserted and installed on the inner wall of the limiting through hole (5), and the bottom end of the limiting screw (6) extends to the surface of the lower template (1); A limiting component is sleeved and installed on the surface of the limiting screw (6), and the limiting component includes a positioning card plate (7) and a limiting nut (8). The positioning card plate (7) is in a cross-shaped structure, and a mounting socket (9) is provided on the central surface of the positioning card plate (7). A cross-shaped strip groove (10) is provided on the upper surface of the core mold box (4). The position of the positioning card plate (7) corresponds to the strip groove (10), and the size of the strip groove (10) matches the positioning card plate (7). The positioning card plate (7) can move up and down on the surface of the limiting screw (6), and the positioning card plate (7) is used to limit the top of the core mold box (4).

2. A hollow floor core mold fixing device according to claim 1, characterized in that: The limiting nut (8) is threadedly connected to the surface of the limiting screw (6), and the lower surface of the limiting nut (8) overlaps the upper surface of the positioning clamp (7). The limiting nut (8) can play a limiting and tightening role on the positioning clamp (7).

3. A hollow floor core mold fixing device according to claim 2, characterized in that: The surface of the positioning clamp (7) is provided with four reinforcement limit holes (11), and the four reinforcement limit holes (11) are distributed on the surface of the positioning clamp (7) in a cross-shaped array. The upper surface of the lower template (1) is fixedly provided with a plurality of crisscrossing top plate steel bars (12).

4. A hollow floor core mold fixing device according to claim 3, characterized in that: A limiting iron wire (13) is inserted into the interior of the reinforcing limiting hole (11), and one end of the limiting iron wire (13) away from the reinforcing limiting hole (11) is bound to the surface of the plate top steel bar (12), and the limiting iron wire (13) is used to limit the core mold box (4) in the horizontal direction.

5. A hollow floor core mold fixing device according to claim 4, characterized in that: The bottom end of the limiting screw rod (6) is fixedly connected to a supporting bottom block (14), and a fixing hole (15) is provided on the surface of the supporting bottom block (14).

6. A hollow floor core mold fixing device according to claim 5, characterized in that: The surface of the lower template (1) is provided with two symmetrically positioned threading holes (16), the interior of the threading holes (16) is provided with a positioning tie (17), and the positioning tie (17) is wound from the bottom of the supporting steel pipe (3) to the top of the lower template (1).

7. A hollow floor core mold fixing device according to claim 6, characterized in that: The positioning tie (17) passes through the fixing hole (15) on the surface of the supporting bottom block (14), and the positioning tie (17) is used to fix the supporting bottom block (14) and the limiting screw (6) on the surface of the lower template (1).

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