Prefabricated concrete building material reinforcing steel bar hole forming device

Abstract

The utility model provides a precast concrete building material reinforcing steel bar hole forming device, belongs to the technical field of reinforcing steel bar holes, and solves the problems that a round steel pipe composed of three arc-shaped steel plates is directly fixed, the diameter of the round steel pipe cannot be adjusted according to actual needs, and use is limited. The precast concrete building material reinforcement hole forming device comprises a plurality of arc-shaped plates and two discs, arc-shaped notches are formed in the arc-shaped plates, two arc-shaped blocks are slidably connected in the arc-shaped notches, the arc-shaped plates are spliced into a circular pipe, the discs are located in the circular pipe, and the discs are slidably connected with the arc-shaped plates. The device has the advantage that the diameter of the round steel pipe can be adjusted according to actual requirements.

Description

TECHNICAL FIELD

[0001] The utility model belongs to steel hole technical field relates to a steel hole forming device, especially a prefabricated concrete building material steel hole forming device. BACKGROUND

[0002] With the application of prefabricated assembly technology in bridge engineering, prefabricated assembly structures are adopted in many bridge constructions at present, such as prefabricated assembly pier columns, prefabricated assembly box girders, etc. The prefabricated assembly structure is to decompose a structural whole into multiple parts and process into concrete prefabricated blocks in a prefabrication yard, and then transport to the construction site for assembly. Steel reinforcement reserved holes are usually arranged on each prefabricated block for inserting steel bars to connect the prefabricated blocks during assembly.

[0003] After retrieval, a foldable concrete prefabricated steel reinforcement reserved hole forming die is disclosed in Chinese patent document (Application No. 202323039035.X; Publication No. CN 221089426U). The foldable concrete prefabricated steel reinforcement reserved hole forming die includes three long arc-shaped steel plates, each with an arc less than 180°, and each arc-shaped inner arc surface has two ends welded with a connecting plate. Each connecting plate has a pin hole, and the three arc-shaped steel plates form a round steel pipe. The connecting plates of adjacent arc-shaped steel plates are stacked up and down with the pin holes penetrating each other. A long pin shaft is inserted into the connecting plate pin holes of the three arc-shaped steel plates along the longitudinal direction of the round steel pipe. The utility model can be folded inward when removing a pin shaft, and the mold can be folded inward during demolding to separate the mold outer wall from the concrete, so that the mold can be smoothly pulled out of the concrete, avoiding hole collapse and ensuring the smoothness of the steel reinforcement reserved hole inner wall.

[0004] Although the arc-shaped steel plates disclosed in the patent can be folded inward when removing a pin shaft, and the mold can be folded inward during demolding to separate the mold outer wall from the concrete, so that the mold can be smoothly pulled out of the concrete, avoiding hole collapse and ensuring the smoothness of the steel reinforcement reserved hole inner wall, the round steel pipe composed of the three arc-shaped steel plates is fixed directly and cannot adjust the diameter of the round steel pipe according to actual needs, which has limitations in use. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the above-mentioned problems of the existing technology and provides a prefabricated concrete building material steel hole forming device. The technical problem to be solved by the utility model is how to adjust the diameter of the round steel pipe according to actual needs.

[0006] The utility model can be realized by the following technical solutions:

[0007] The utility model discloses a prefabricated concrete building material steel bar hole forming device, including a plurality of arc plates and two discs, the arc slot is slidably connected with two arc blocks in the arc plate, and the arc plate is spliced into a circular tube.

[0008] The working principle of the utility model is as follows: when the prefabricated concrete vertical form is set, the circular tube spliced by the arc plates is placed in the reserved hole design position of the steel bar in the prefabricated block, the arc blocks in the arc plates are extended out of the arc plates and spliced together by pushing the arc plates to move simultaneously, and the diameter of the circular tube is adjusted according to actual needs.

[0009] A plurality of hollow rods are fixed on the disc, a telescopic rod is slidably connected in the hollow rod, and the other end of the telescopic rod is fixedly connected with the arc plate.

[0010] By installing the telescopic rod and driving mechanism, the arc plate is driven to move by the telescopic rod, the hollow rod limits the telescopic rod, the arc blocks in the arc plates are extended out of the arc plates and spliced together, and the diameter of the circular tube is adjusted according to actual needs.

[0011] A plurality of fixed blocks are fixed in the arc slot, the fixed blocks are located between the two arc blocks, two springs are fixed on the fixed blocks, and the other end of the spring is fixedly connected with the arc block.

[0012] By installing the spring, the spacing between each arc plate is enlarged when the arc plate moves, the arc blocks are popped out of the arc plate by the elastic force of the spring, the gap of the spacing is filled, and the diameter of the circular tube is adjusted according to actual needs.

[0013] The driving mechanism comprises a circular plate rotatably connected to the disc, a plurality of arc sliding ports are formed in the circular plate, a moving port is formed in the hollow rod, a slide column extending out of the moving port is fixed on the telescopic rod, the slide column is slidably connected with the arc sliding port, a motor is fixed on the disc, and the output shaft end of the motor is fixedly connected with the circular plate.

[0014] By forming the arc sliding port and installing the slide column, the motor is started, the circular plate is driven to rotate, the arc sliding port on the circular plate rotates with the circular plate, the slide column slides in the arc sliding port, and the arc plate on the telescopic rod is driven to move.

[0015] The arc of each arc plate and the arc block is equal and less than 180 degrees.

[0016] By making the arc of each arc plate and the arc block equal and less than 180 degrees, each arc plate and the arc block can be spliced into a circular tube.

[0017] Compared with existing technologies, this precast concrete building material rebar hole forming device has the following advantages:

[0018] 1. When erecting the precast concrete formwork, the circular tube formed by splicing arc-shaped plates is placed at the designed position of the pre-reserved holes for reinforcing bars inside the precast block. By pushing the arc-shaped plates to move simultaneously, the arc-shaped blocks inside the arc-shaped plates extend out of the arc-shaped plates and are spliced ​​together, thus realizing the adjustment of the diameter of the circular tube according to actual needs.

[0019] 2. By installing springs, the distance between each arc plate increases when the arc plate moves. The spring force causes the arc block to pop out of the arc plate and fill the gap, thus allowing the diameter of the round tube to be adjusted according to actual needs.

[0020] 3. By opening an arc-shaped sliding opening and installing a sliding column, the motor is started, driving the circular plate to rotate. The arc-shaped sliding opening on the circular plate rotates with the circular plate, and the sliding column slides within the arc-shaped sliding opening, thus moving the arc-shaped plate on the telescopic rod. Attached Figure Description

[0021] Fig. 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Fig. 2 This is a cross-sectional view of the present invention.

[0023] Fig. 3 This is a schematic diagram of the telescopic rod in this utility model.

[0024] In the diagram, 1. Arc-shaped plate; 2. Disc; 3. Arc-shaped groove; 4. Arc-shaped block; 5. Hollow rod; 6. Telescopic rod; 7. Spring; 8. Circular plate; 9. Arc-shaped sliding opening; 10. Moving opening; 11. Sliding column; 12. Motor; 13. Fixed block. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] like Figs. 1-3 As shown, the precast concrete building material rebar hole forming device includes multiple arc plates 1 and two discs 2. Arc plates 1 have arc grooves 3, and two arc blocks 4 are slidably connected in the arc grooves 3. Multiple arc plates 1 are spliced ​​to form a circular tube, and the discs 2 are located inside the circular tube. The discs 2 are slidably connected to the arc plates 1.

[0027] When erecting the precast concrete formwork, the circular tube formed by splicing the arc plate 1 is placed at the designed position of the reserved hole for the reinforcing steel inside the precast block. By pushing the arc plate 1 to move simultaneously, the arc block 4 inside the arc plate 1 extends out of the arc plate 1 and splices together, thus realizing the adjustment of the diameter of the circular tube according to actual needs.

[0028] A plurality of hollow rods 5 are fixed on the disc 2, and a telescopic rod 6 is slidably connected in the hollow rod 5, and the other end of the telescopic rod 6 is fixedly connected with the arc-shaped plate 1, and a driving mechanism is arranged on the disc 2.

[0029] By adopting the above structure, the telescopic rod 6 is installed, the driving mechanism drives the arc-shaped plate 1 to move, the hollow rod 5 limits the telescopic rod 6, the arc-shaped block 4 in the arc-shaped plate 1 is realized to extend out of the arc-shaped plate 1 and be spliced together, and the diameter of the circular pipe can be adjusted according to actual needs.

[0030] A plurality of fixed blocks 13 are fixed in the arc-shaped notches 3, the fixed blocks 13 are located between the two arc-shaped blocks 4, two springs 7 are fixed on the fixed blocks 13, and the other end of the spring 7 is fixedly connected with the arc-shaped block 4.

[0031] By adopting the above structure, the spring 7 is installed, the spacing between each arc-shaped plate 1 is enlarged when the arc-shaped plate 1 moves, the arc-shaped block 4 is popped out of the arc-shaped plate 1 by the elastic force of the spring 7, the gap of the spacing is filled, and the diameter of the circular pipe can be adjusted according to actual needs.

[0032] The driving mechanism comprises a circular plate 8 rotatably connected to the disc 2, a plurality of arc-shaped sliding ports 9 are formed in the circular plate 8, a moving port 10 is formed in the hollow rod 5, a sliding column 11 extending out of the moving port 10 is fixed on the telescopic rod 6, the sliding column 11 is slidably connected with the arc-shaped sliding port 9, a motor 12 is fixed on the disc 2, and the output shaft end of the motor 12 is fixedly connected with the circular plate 8.

[0033] By adopting the above structure, the arc-shaped sliding port 9 and the sliding column 11 are formed, the motor 12 is started, the circular plate 8 is driven to rotate, the arc-shaped sliding port 9 on the circular plate 8 rotates with the circular plate 8, and the sliding column 11 slides in the arc-shaped sliding port 9, so that the arc-shaped plate 1 on the telescopic rod 6 is driven to move.

[0034] Each arc-shaped plate 1 has an equal arc degree with the arc-shaped block 4 and the arc degree is less than 90 degrees.

[0035] By adopting the above structure, each arc-shaped plate 1 has an equal arc degree with the arc-shaped block 4 and the arc degree is less than 90 degrees, so that each arc-shaped plate 1 and the arc-shaped block 4 can be spliced into a circular pipe.

[0036] The working principle of the utility model is as follows: when the prefabricated block concrete vertical form is set, the circular pipe spliced by the arc-shaped plate 1 is placed in the steel bar reserved hole design position in the prefabricated block, the motor 12 is started, the circular plate 8 is driven to rotate, the arc-shaped sliding port 9 on the circular plate 8 rotates with the circular plate 8, the sliding column 11 slides in the arc-shaped sliding port 9, the arc-shaped plate 1 on the telescopic rod 6 is driven to move, the spacing between each arc-shaped plate 1 is enlarged when the arc-shaped plate 1 moves, the arc-shaped block 4 is popped out of the arc-shaped plate 1 by the elastic force of the spring 7, the gap of the spacing is filled, and the diameter of the circular pipe can be adjusted according to actual needs.

[0037] In summary, through the arc-shaped block, the function of adjusting the diameter of the round steel pipe according to actual needs is realized.

[0038] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A prefabricated concrete building material reinforcement hole forming device comprising a plurality of arc-shaped plates (1) and two discs (2), characterized in that, The arc-shaped slot (3) is internally fixed with a plurality of fixed blocks (13), the fixed blocks (13) are located between the two arc-shaped blocks (4), the fixed blocks (13) are fixed with two springs (7), and the other end of the springs (7) is fixedly connected with the arc-shaped blocks (4).

2. A device for forming a reinforcing bar hole in a precast concrete building material according to claim 1, characterized in that The driving mechanism comprises a circular plate (8) rotatably connected to the disc (2), a plurality of arc-shaped sliding openings (9) are formed in the circular plate (8), a moving opening (10) is formed in the hollow rod (5), a sliding column (11) extending out of the moving opening (10) is fixed to the telescopic rod (6), the sliding column (11) is slidably connected with the arc-shaped sliding opening (9), a motor (12) is fixed to the disc (2), and the output shaft end of the motor (12) is fixedly connected with the circular plate (8).

3. The device according to claim 1, wherein The arc-shaped slot (3) is internally fixed with a plurality of fixed blocks (13), the fixed blocks (13) are located between the two arc-shaped blocks (4), the fixed blocks (13) are fixed with two springs (7), and the other end of the springs (7) is fixedly connected with the arc-shaped blocks (4).

4. A device for forming a reinforcing bar hole in a precast concrete building material according to claim 2, wherein Each of the arc-shaped plates (1) has an equal arc degree with the arc-shaped blocks (4) and the arc degree is less than 180 degrees.

5. The device according to claim 1, wherein ​

Images