Reinforcing device for reserved hole inner mold and using method

Abstract

The invention provides a reinforcing device for a reserved hole inner mold and a using method.The reinforcing device comprises a first mounting cylinder, a driving mechanism and a plurality of supporting petals, and the driving mechanism and the supporting petals are located on the inner side and the outer side of the first mounting cylinder correspondingly; the driving mechanism can drive the supporting petals to move in the radial direction of the first mounting cylinder. A second mounting cylinder is arranged in the first mounting cylinder, the driving mechanism is arranged in the second mounting cylinder and connected with the supporting petals through a transmission mechanism, and the axis of the transmission mechanism is perpendicular to the axis of the first mounting cylinder. The reinforcing device provided by the invention is an integrated prefabricated product, is very convenient and fast to transfer, use, mount and dismount, is stable to mount through a positioning disc and a positioning cone, is suitable for reinforcing requirements of reserved hole inner molds with various inner diameters through linkage matching of a driving mechanism, a transmission mechanism and a plurality of supporting petals, and is high in applicability.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a reinforcement device for an inner mold with reserved holes and a use method thereof. Background Art

[0002] Reserved holes are holes created during construction for burying pipes for water supply, heating, and other utilities. Traditionally, these holes have been constructed using a formwork or casing as an inner mold for the hole. To ensure its stability, the mold is reinforced with conventional materials like wood planks, wooden wedges, and steel bars.

[0003] The above-mentioned construction technology requires a large number of materials for reinforcing the inner formwork of the holes, and the installation and disassembly operations are cumbersome and have poor applicability. Especially in modern large-scale commercial buildings, high-rise residential projects, and other projects, there is an increasing demand for a large number of reserved holes of different specifications and uses. Traditional technologies are difficult to strike a balance between applicability and efficiency, resulting in multiple investments in manpower and material resources, increased construction costs, and extended construction time. Summary of the Invention

[0004] The purpose of the present invention is to provide a reinforcement device for an inner mold with reserved holes and a method for using the same to address the deficiencies in the above-mentioned background technology.

[0005] The technical solution of the present invention is: a reinforcement device for an inner mold with a reserved hole, which includes a first mounting tube, a driving mechanism and a plurality of support petals, the driving mechanism and the support petals are respectively located on the inner and outer sides of the first mounting tube, and the driving mechanism can drive the support petals to move radially along the first mounting tube.

[0006] Furthermore, a second mounting tube is provided in the first mounting tube, the driving mechanism is provided in the second mounting tube, and is connected to the support petal via a transmission mechanism, wherein the axis of the transmission mechanism is perpendicular to the axis of the first mounting tube.

[0007] Furthermore, the transmission mechanism includes a coaxially connected transmission bevel gear, a transmission screw and a movable frame, the transmission screw extends radially along the second mounting cylinder, its end located inside the second mounting cylinder is connected to the transmission bevel gear, and its end located outside the second mounting cylinder is connected to the movable frame; the transmission bevel gear can be driven to rotate by the driving mechanism; a thread groove for threading the transmission screw is provided inside the movable frame, and the outside is slidably connected to the first mounting cylinder; the support petal is connected to the end of the movable frame located outside the first mounting cylinder.

[0008] Furthermore, a limiting protrusion is provided on the outer wall of the movable frame, and the limiting protrusion extends in the radial direction of the movable frame. A limiting groove adapted to the limiting protrusion is provided on the first mounting tube.

[0009] Furthermore, the driving mechanism includes a driving rod and a driving bevel gear that are coaxially connected, the driving rod is rotatably connected to the second mounting cylinder, and the driving bevel gear is engaged with the transmission bevel gear.

[0010] Furthermore, the separated ends of the driving rod and the driving bevel gear are respectively provided with a driving handle and a limiting screw, and the end of the limiting screw extending out of the second mounting cylinder is sleeved with a limiting nut.

[0011] Furthermore, a guide cone is provided at the end of the limiting screw away from the driving bevel gear.

[0012] Furthermore, a positioning plate is connected to the shaft end of the second mounting tube. The positioning plate is located outside the first mounting tube, and a positioning cone is provided on the end surface thereof facing the first mounting tube.

[0013] Furthermore, the support petals are arc-shaped, and a plurality of the support petals are evenly dispersed along the circumference of the first mounting tube.

[0014] The technical solution of the present invention also includes: a method for using the above-mentioned reinforcement device of the reserved hole inner mold, which includes the steps of:

[0015] On one side of the floor bottom formwork or the wall side formwork, the reinforcement device is extended into the reserved hole inner formwork, and the positioning cone is installed on the floor bottom formwork or the wall side formwork;

[0016] Rotate the driving rod to drive the driving bevel gear and the driven bevel gear to rotate, so that the movable frame moves along the radial direction of the first mounting cylinder until each supporting petal is pressed against the inner mold of the reserved hole;

[0017] Install the limiting nut at the end of the limiting screw extending out of the reserved hole inner mold.

[0018] The beneficial effects of the present invention are as follows: the reinforcement device is an integrated prefabricated product, which is very convenient to transport, use and install; the positioning plate and positioning cone make it stable to install; the linkage coordination of the driving mechanism, the transmission mechanism and several supporting petals makes it suitable for the reinforcement needs of inner molds of reserved holes with various inner diameters, and thus has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall structural diagram of an embodiment of the present invention;

[0020] Figure 2 is a cross-sectional view of an embodiment of the present invention;

[0021] Figure 3 Schematic diagram of the connection between the driving mechanism, the transmission mechanism and the support petal in an embodiment of the present invention;

[0022] Figure 42 is a schematic diagram of the connection between the movable frame and the first mounting cylinder in an embodiment of the present invention.

[0023] In the picture:

[0024] 1. First mounting cylinder; 11. Limiting groove;

[0025] 2. Second mounting tube;

[0026] 3. Driving mechanism; 31. Driving handle; 32. Driving rod; 33. Driving bevel gear;

[0027] 4. Transmission mechanism; 41. Transmission bevel gear; 42. Transmission screw; 43. Moving frame; 44. Thread groove; 45. Limiting protrusion;

[0028] 5. Positioning plate; 51. Positioning cone;

[0029] 6. Support flap;

[0030] 7. Limit screw;

[0031] 8. Limit nut;

[0032] 9. Guide cone. DETAILED DESCRIPTION

[0033] The technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood based on specific circumstances.

[0035] Reference Attachment Figure 1-4, an embodiment of the present invention provides a reinforcement device for an inner mold of a reserved hole, which includes a first mounting tube 1, a second mounting tube 2, a driving mechanism 3, a transmission mechanism 4, a positioning disk 5 and a plurality of support petals 6. The first mounting tube 1 is coaxially sleeved on the outside of the second mounting tube 2, and the plurality of support petals 6 are coaxially distributed on the outside of the first mounting tube 1, and the plurality of support petals 6 are evenly dispersed around the circumference of the first mounting tube 1; the driving mechanism 3 is partially constructed in the second mounting tube 2, and the transmission mechanism 4 is partially located in the first mounting tube 1 and the second mounting tube 2 and is connected to the driving mechanism 3, and is driven by the driving mechanism 3 to drive the support petals 6 to move radially along the first mounting tube 1; at least one axial end of the second mounting tube 2 extends out of the first mounting tube 1, and the positioning disk 5 is provided at the axial end of the second mounting tube 2, and its end face facing the first mounting tube 1 is provided with a positioning cone 51, and the tip of the positioning cone 51 faces the first mounting tube 1.

[0036] When supporting the casting formwork of the building structure, the above-mentioned reinforcement device is inserted into the inner mold of the reserved hole from the bottom mold of the vertical reserved hole (or the side mold of the horizontal reserved hole), and the positioning cone 51 on the positioning plate 5 is inserted into the bottom mold (or side mold) to prevent the device from shifting; the driving mechanism 3 is manually controlled to be located at the part outside the second mounting tube 2, and the driving mechanism 3 and the transmission mechanism 4 are linked to drive the support petals 6 away from the first mounting tube 1 until the outer wall of the support petals 6 is pressed against the inner mold of the reserved hole. Through the pre-fixed positioning plate 5 and several support petals 6 evenly distributed around the first mounting tube 1, the inner mold of the reserved hole can be supported and fixed in multiple directions to prevent it from shifting. This reinforcement device is not only simple to operate, but also has strong applicability and is suitable for reinforcing inner molds with various inner diameters.

[0037] Reference Attachment Figure 2 The axis of the driving mechanism 3 is parallel to the axis of the first mounting cylinder 1, and it specifically includes a coaxially connected driving rod 32 and a driving bevel gear 33. The axis of the transmission mechanism 4 is perpendicular to the axis of the first mounting cylinder 1, and it specifically includes: a coaxially connected transmission bevel gear 41, a transmission screw 42 and a movable frame 43, and several transmission bevel gears 41 are evenly dispersed around the circumference of the driving bevel gear 33 and meshed with it; the driving rod 32 extends axially along the second mounting cylinder 2 and is rotatably connected to the second mounting cylinder 2; the transmission screw 42 extends radially along the second mounting cylinder 2, and its end located inside the second mounting cylinder 2 is connected to the transmission bevel gear 41, and its end located outside the second mounting cylinder 2 is connected to the movable frame 43; a threaded groove 44 for threaded transmission screw 42 is provided inside the movable frame 43, and the outside is slidably connected to the first mounting cylinder 1; the support petal 6 is connected to the end of the movable frame 43 located outside the first mounting cylinder 1.

[0038] In the above mechanism, the rotating drive rod 32 can drive the driving bevel gear 33 to rotate, and the driven bevel gear is driven by the driving bevel gear 33 to rotate, thereby driving the transmission screw 42 to rotate, so that the movable frame 43 engaged with the transmission screw 42 moves along the radial direction of the first mounting cylinder 1, thereby driving the support petal 6 to move.

[0039] To ensure smooth movement of the movable frame 43 and the support petals 6, in this embodiment, the outer wall of the movable frame 43 is provided with a limiting protrusion 45, which extends radially along the movable frame 43. The first mounting tube 1 is provided with a limiting groove 11 adapted to the limiting protrusion 45, so that the limiting protrusion 45 can slide radially along the first mounting tube 1 within the limiting groove 11. Due to the constraints of the limiting protrusion 45 and the limiting groove 11, when the movable frame 43 is subjected to the force of the transmission screw 42, it can only move radially along the first mounting tube 1 and cannot rotate about its own axis. This, in turn, causes the length of the transmission screw 42 extending into the threaded groove 44 to change, ultimately achieving the purpose of changing the position of the support petals 6 radially along the first mounting tube 1.

[0040] In some better technical solutions, the separated ends of the driving rod 32 and the driving bevel gear 33 are respectively provided with a driving handle 31 and a limiting screw 7. The driving handle 31 is located on the outside of the second mounting tube 2, so that people can hold it and rotate the driving rod 32; the end of the limiting screw 7 extending out of the second mounting tube 2 is sleeved with a limiting nut 8. When the reinforcement device is inserted into the inner mold of the reserved hole from the bottom mold (or side mold) side, the limiting screw 7 can extend from the other side of the inner mold of the reserved hole, and the limiting nut 8 is installed on the other side of the inner mold of the reserved hole, so that the limiting nut 8 is directly or indirectly (for example, against the wooden square or other template structure on the other side of the reserved hole) pressed against the axial side end face of the inner mold of the reserved hole, so that the reinforcement device can be more stably connected to the construction template to prevent falling or slipping.

[0041] In some constructions, other wooden blocks or template structures are provided on the axial end face of the reserved hole inner mold away from the bottom mold (or side mold). In order to facilitate the installation of this reinforcement device, holes are adaptively opened on these wooden blocks or template structures, but the holes are generally small. In order to facilitate the smooth passage of the limiting screw 7, this embodiment provides a guide cone 9 at the end of the limiting screw 7 away from the driving bevel gear 33, and the tip of the guide cone 9 is facing away from the driving bevel gear 33.

[0042] Generally, the reserved holes are mostly circular, so in this embodiment, the support petals 6 can be adaptively configured into an arc shape.

[0043] Compared with the prior art, the beneficial effects of the present invention include at least: the present reinforcement device is an integrated prefabricated product, which is very convenient to transport, use, and install; the positioning plate 5 and the positioning cone 51 make it firmly installed; the linkage of the driving mechanism 3, the transmission mechanism 4 and several supporting petals 6 makes it suitable for the reinforcement needs of inner molds of reserved holes with various inner diameters, and therefore has strong applicability.

[0044] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A reinforcement device for an inner mold with reserved holes, characterized in that: It includes a first mounting tube, a driving mechanism and a plurality of supporting petals, wherein the driving mechanism and the supporting petals are respectively located on the inner and outer sides of the first mounting tube, and the driving mechanism can drive the supporting petals to move radially along the first mounting tube.

2. The reinforcement device for the inner mold with reserved holes according to claim 1, characterized in that: A second mounting tube is provided in the first mounting tube. The driving mechanism is provided in the second mounting tube and is connected to the supporting petals via a transmission mechanism. The axis of the transmission mechanism is perpendicular to the axis of the first mounting tube.

3. The reinforcement device for the inner mold with reserved holes according to claim 2, characterized in that: The transmission mechanism includes a coaxially connected transmission bevel gear, a transmission screw and a movable frame. The transmission screw extends radially along the second mounting cylinder, and its end located inside the second mounting cylinder is connected to the transmission bevel gear, and its end located outside the second mounting cylinder is connected to the movable frame; the transmission bevel gear can be driven to rotate by the driving mechanism; a thread groove for threading the transmission screw is provided inside the movable frame, and the outside is slidably connected to the first mounting cylinder; the support petal is connected to the end of the movable frame located outside the first mounting cylinder.

4. The reinforcement device for the inner mold with reserved holes according to claim 3, characterized in that: The outer wall of the movable frame is provided with a limiting protrusion, and the limiting protrusion extends along the radial direction of the movable frame. The first mounting tube is provided with a limiting groove adapted to the limiting protrusion.

5. The reinforcement device for the inner mold with reserved holes according to claim 3 or 4, characterized in that: The driving mechanism includes a driving rod and a driving bevel gear that are coaxially connected. The driving rod is rotatably connected to the second mounting cylinder, and the driving bevel gear is engaged with the transmission bevel gear.

6. The reinforcement device for the inner mold with reserved holes according to claim 5, characterized in that: The separated ends of the driving rod and the driving bevel gear are respectively provided with a driving handle and a limiting screw, and the end of the limiting screw extending out of the second mounting cylinder is sleeved with a limiting nut.

7. The reinforcement device for the inner mold with reserved holes according to claim 6, characterized in that: A guide cone is provided at the end of the limiting screw away from the driving bevel gear.

8. The reinforcement device for the inner mold with reserved holes according to any one of claims 2-4, 6-7, characterized in that: The shaft end of the second mounting tube is connected with a positioning plate, and the positioning plate is located outside the first mounting tube. The end surface of the positioning plate facing the first mounting tube is provided with a positioning cone.

9. The reinforcement device for the inner mold with reserved holes according to claim 8, characterized in that: The supporting petals are arc-shaped, and a plurality of the supporting petals are evenly distributed along the circumference of the first mounting tube.

10. A method for reinforcing the device of the inner mold with reserved holes according to claim 8 or 9, characterized in that: Including steps: On one side of the floor bottom formwork or the wall side formwork, the reinforcement device is extended into the reserved hole inner formwork, and the positioning cone is installed on the floor bottom formwork or the wall side formwork; Rotate the driving rod to drive the driving bevel gear and the driven bevel gear to rotate, so that the movable frame moves along the radial direction of the first mounting cylinder until each supporting petal is pressed against the inner mold of the reserved hole; Install the limiting nut at the end of the limiting screw extending out of the reserved hole inner mold.

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