Diameter-adjustable hole opening template

Abstract

The utility model relates to the technical field of building construction, and discloses a diameter-adjustable hole opening formwork which comprises a first flexible steel sheet, a second flexible steel sheet and a third flexible steel sheet. The two second flexible steel sheets are arranged in parallel, a gap is reserved between the two second flexible steel sheets, and the two ends of the first flexible steel sheet are inserted between the two second flexible steel sheets from the two ends of the second flexible steel sheets respectively; the supporting assembly is arranged between the first flexible steel sheet and the second flexible steel sheet and used for controlling the first flexible steel sheet and the second flexible steel sheet to form a cylinder shape and controlling the diameter of the cylinder formed by the first flexible steel sheet and the second flexible steel sheet. The appearance quality of concrete at the reserved hole is improved to a certain extent, meanwhile, round holes of different sizes can be reserved by controlling the positions of the supporting rods, and the turnover utilization rate of the hole formwork is improved.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a hole template with adjustable diameter. Background Art

[0002] The opening formwork is a temporary formwork used to form reserved openings in concrete structures during construction. Its function is to ensure that the shape and size of the reserved openings meet the design requirements before pouring the concrete. At the same time, it can be smoothly removed after the concrete hardens to facilitate subsequent processes. At present, the reserved opening formworks in on-site construction are often assembled with bamboo plywood and rivets.

[0003] However, in the process of implementing the relevant technical solutions, at least the following technical problems were found: when a circular opening needs to be reserved, a circular reserved opening template assembled with bamboo plywood and rivets was found to have relatively poor concrete appearance quality after dismantling, and at the same time, the size of the reserved opening template was fixed, resulting in a low turnover rate of the reserved opening template. Utility Model Content

[0004] The present application provides a hole template with adjustable diameter, thereby solving the technical problems that the circular reserved hole template assembled with bamboo plywood and rivets in the prior art has relatively poor appearance quality of concrete after dismantling and the reserved hole template has a fixed size, resulting in a low turnover rate of the reserved hole template. The application improves the appearance quality of concrete at the reserved hole to a certain extent, and at the same time, circular holes of different sizes can be reserved by controlling the position of the support rod, thereby improving the turnover rate of the hole template.

[0005] The present application provides an opening template with adjustable diameter, comprising: a first flexible steel sheet, which is arc-shaped; a second flexible steel sheet, wherein two second flexible steel sheets are arranged in parallel with a gap between the two second flexible steel sheets, and two ends of the first flexible steel sheet are respectively inserted between the two second flexible steel sheets from two ends of the second flexible steel sheet; a supporting component, which is arranged between the first flexible steel sheet and the second flexible steel sheet, and is used to control the first flexible steel sheet and the second flexible steel sheet to form a cylindrical shape, and to control the diameter of the cylinder formed by the first flexible steel sheet and the second flexible steel sheet.

[0006] Furthermore, the support assembly includes: a connecting box, which is cylindrical; a screw rod, a plurality of the screw rods are rotatably arranged on the outer peripheral surface of the connecting box, and the plurality of the screw rods are arranged at equal intervals along the circumference of the connecting box; a support rod, a plurality of the support rods correspond to a plurality of the screw rod positions one by one, the support rod is threadedly connected to the screw rods at corresponding positions, and the end of the support rod away from the screw rod is in contact with the first flexible steel sheet or the second flexible steel sheet at the corresponding position; a guide rod, a plurality of the guide rods correspond to a plurality of the screw rod positions one by one, the guide rod is located directly above the screw rod, the guide rod is arranged parallel to the screw rod, one end of the guide rod is fixedly connected to the connecting box, a guide groove is provided at the corresponding position of the support rod and the guide rod, and the other end of the guide rod is slidably connected to the guide groove; a driving member, used to drive the plurality of the screw rods to rotate simultaneously.

[0007] Furthermore, the driving member includes: a driving bevel gear, which is coaxially arranged with the connecting box and rotatably arranged in the connecting box; a driven bevel gear, a plurality of driven bevel gears corresponding to a plurality of screw rod positions one by one, the driven bevel gear is fixedly connected to the end of the screw rod located in the connecting box, and the driven bevel gear is meshed with the corresponding position of the driving bevel gear; a handle, the handle is fixedly connected to the top surface of the driving bevel gear, and the connecting shaft of the handle is coaxially arranged with the driving bevel gear.

[0008] Furthermore, a limiting hole is provided on the handle, and a plurality of limiting grooves are provided on the top surface of the connecting box along the circumference of the connecting axis, two adjacent limiting grooves are connected, a limiting rod is movably inserted in the limiting hole, and the limiting rod passes through the limiting hole and is inserted into the limiting groove at the corresponding position.

[0009] Furthermore, the support assembly also includes two steel wire ropes, which are respectively fixed to the two ends of the first flexible steel sheet. Two connecting holes are opened at the center position of the second flexible steel sheet near the support assembly. The two steel wire ropes pass through between the two second flexible steel sheets and exit from the connecting holes. The two steel wire ropes are provided with handles, and the handles have two connecting holes. The two steel wire ropes pass through the two connecting holes respectively, and the ends of the two steel wire ropes away from the first flexible steel sheet respectively pass through the two eyelets of the adjustable wire buckle.

[0010] The technical solution provided by this application has at least the following technical effects or advantages:

[0011] By adopting the first flexible steel sheet and the second flexible steel sheet in cooperation with the supporting assembly, the technical problem that the circular reserved hole template assembled by bamboo plywood and rivets in the prior art is relatively poor in appearance quality of concrete after dismantling and the reserved hole template has a fixed size, resulting in a low turnover rate of the reserved hole template, is effectively solved, thereby improving the appearance quality of concrete at the reserved hole to a certain extent, and at the same time, circular holes of different sizes can be reserved by controlling the position of the support rod, thereby improving the turnover rate of the hole template. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view of the hole template in the embodiment of the present application;

[0013] Figure 2 A bottom view of the hole template in the embodiment of the present application;

[0014] Figure 3 This is a schematic diagram of the distribution structure of the support rods in the embodiment of the present application;

[0015] Figure 4 for Figure 1 A partial enlarged view of the middle A;

[0016] Figure 5 for Figure 1 A partial enlarged view of point B in the middle;

[0017] In the figure: 1. first flexible steel sheet; 2. second flexible steel sheet; 3. support assembly; 31. connection box; 311. limit groove; 32. screw rod; 33. support rod; 331. guide groove; 34. guide rod; 35. driving member; 351. active bevel gear; 352. driven bevel gear; 353. handle; 3531. limit hole; 36. limit rod; 37. wire rope; 38. grip; 381. connection hole; 39. wire buckle. DETAILED DESCRIPTION

[0018] The embodiment of the present application discloses an opening template with adjustable diameter, in which two ends of a first flexible steel sheet 1 are respectively inserted between two second flexible steel sheets 2 from two ends of a second flexible steel sheet 2, and a support component 3 is arranged between the first flexible steel sheet 1 and the second flexible steel sheet 2. The support component 3 is used to control the first flexible steel sheet 1 and the second flexible steel sheet 2 to form a cylinder, and to control the diameter of the cylinder formed by the first flexible steel sheet 1 and the second flexible steel sheet 2, thereby improving the appearance quality of concrete at the reserved opening to a certain extent, and at the same time, by controlling the position of the support rod 33, circular openings of different sizes can be reserved, thereby improving the turnover utilization rate of the opening template.

[0019] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Reference Figure 1 , Figure 2 A hole template with adjustable diameter includes a first flexible steel sheet 1, two second flexible steel sheets 2, and a support component 3. The two second flexible steel sheets 2 are arranged in parallel, and a gap is left between the two second flexible steel sheets 2. The two ends of the two second flexible steel sheets 2 are fixedly connected by multiple flexible connecting blocks to prevent the two second flexible steel sheets 2 from bending. The two ends of the first flexible steel sheet 1 are respectively inserted between the two second flexible steel sheets 2 from the two ends of the second flexible steel sheet 2. The top edge and the bottom edge of the first flexible steel sheet 1 are respectively slidably fitted with multiple flexible connecting blocks to limit the moving direction of the first flexible steel sheet 1. At the same time, the first flexible steel sheet 1 and the two second flexible steel sheets 2 are connected together, so that the support component 3 can adjust the connected first flexible steel sheet 1 and the second flexible steel sheet 2 into a cylindrical shape. The second flexible steel sheet 2 can be stored between the two second flexible steel sheets 2. When the support component 3 controls the first flexible steel sheet 1 and the second flexible steel sheet 2 to form cylinders of different diameters, the first flexible steel sheet 1 can shrink into the second flexible steel sheet 2 or be pulled out from between the two second flexible steel sheets 2 as the diameter of the cylinder changes.

[0021] Reference Figure 1 , Figure 3 The support assembly 3 includes a cylindrical connection box 31, a plurality of support rods 33, and a plurality of guide rods 34. A plurality of screw rods 32 are rotatably connected to the vertical side of the connection box 31. The plurality of screw rods 32 are arranged equidistantly along the circumference of the connection box 31. The plurality of support rods 33 correspond to the plurality of screw rods 32 one by one. The support rods 33 are threadedly connected to the screw rods 32 at the corresponding positions. The ends of the support rods 33 away from the screw rods 32 are fitted with the first flexible steel sheet 1 or the second flexible steel sheet 2 at the corresponding positions to support the cylinder composed of the first flexible steel sheet 1 and the second flexible steel sheet 2. The plurality of guide rods 34 are connected to the plurality of The positions of the screw rods 32 correspond one to one, the guide rod 34 is located directly above the screw rod 32, the guide rod 34 is arranged parallel to the screw rod 32, one end of the guide rod 34 is fixedly connected to the connecting box 31, and a guide groove 331 is provided at the corresponding position of the support rod 33 and the guide rod 34, and the other end of the guide rod 34 is slidably connected to the guide groove 331 to limit the moving direction of the support rod 33, and the driving member 35 drives multiple screw rods 32 to rotate at the same time. The rotation of the screw rod 32 allows the support rod 33 to move along the long side direction of the guide rod 34, so that the first flexible steel sheet 1 and the second flexible steel sheet 2 can form cylinders of different diameters.

[0022] Reference Figure 3 , Figure 4The driving member 35 includes a driving bevel gear 351, a driven bevel gear 352, and a handle 353. The driving bevel gear 351 is coaxially arranged with the connecting box 31, and the driving bevel gear 351 is rotatably arranged in the connecting box 31. A plurality of driven bevel gears 352 correspond to the positions of a plurality of screw rods 32 one by one. The driven bevel gear 352 is coaxially arranged with the screw rods 32 at corresponding positions. The driven bevel gear 352 is fixedly connected to the end of the screw rod 32 located in the connecting box 31, and the driven bevel gear 352 is meshed with the corresponding position of the driving bevel gear 351. The handle 353 is fixedly connected to the top surface of the driving bevel gear 351, and the connecting shaft of the handle 353 is coaxially arranged with the driving bevel gear 351. The connecting shaft of the handle 353 is rotatably connected with the connecting box 31. When the handle 353 is turned, the handle 353 drives the driving bevel gear 351 to rotate, and the rotation of the driving bevel gear 351 drives the plurality of driven bevel gears 352 to rotate simultaneously, thereby causing the plurality of screw rods 32 to rotate simultaneously, so that the support rod 33 can move along the long side direction of the guide rod 34.

[0023] Reference Figure 4 A limiting hole 3531 is provided on the handle 353, and a plurality of limiting grooves 311 are provided on the top surface of the connecting box 31 along the circumference of the connecting axis. Two adjacent limiting grooves 311 are connected to each other, so that there are more limiting points and more adjustment angles. A limiting rod 36 is movably inserted in the limiting hole 3531. After the support rod 33 is adjusted to a suitable position, the limiting rod 36 is inserted into the limiting hole 3531, and then the limiting rod 36 is further inserted into the limiting groove 311 at the corresponding position.

[0024] Reference Figure 5The support assembly 3 also includes two steel wires 37, which are respectively fixed to the two ends of the first flexible steel sheet 1. Two through holes are provided at the center of the second flexible steel sheet 2 near the support assembly 3. The two steel wires 37 pass through between the two second flexible steel sheets 2 and pass out from the through holes. A grip 38 is provided on the two steel wires 37, and two connecting holes 381 are provided on the grip 38. The two steel wires 37 pass through the two connecting holes 381 respectively. The length of the grip 38 is greater than the interval between the two adjacent support rods 33, so that the grip 38 can be mounted on the two adjacent support rods 33. The ends of the two steel wires 37 away from the first flexible steel sheet 1 respectively pass through the two button holes of the adjustable steel wire buckle 39, and then a fixing buckle is fixedly installed on the ends of the two steel wires 37 away from the first flexible steel sheet 1 to prevent the adjustable steel wire buckle 39 from being damaged. 9 falls, when a circular hole needs to be reserved, first place the support assembly 3 between the first flexible steel sheet 1 and the second flexible steel sheet 2, turn the handle 353, and adjust the support rod 33 to a suitable position. At this time, if the first flexible steel sheet 1 and the second flexible steel sheet 2 are not completely fitted with the support rod 33, pull the handle 38 to make the wire rope 37 drive the first flexible steel sheet 1 to be inserted between the two second flexible steel sheets 2 until the first flexible steel sheet 1 and the second flexible steel sheet 2 are fitted with the support rod 33, adjust the position of the handle 38 so that the handle 38 is mounted on two adjacent support rods 33, make the wire buckle 39 fit with the handle 38, and then tighten the screw of the wire buckle 39. At this time, the part of the wire rope 37 between the handle 38 and the first flexible steel sheet 1 is in a tensioned state, limiting the position between the first flexible steel sheet 1 and the two second flexible steel sheets 2.

[0025] The working principle of the embodiment of the present application is: when a circular hole needs to be reserved, the support assembly 3 is placed in the reserved position, the first flexible steel sheet 1 and the two second flexible steel sheets 2 connected together are sleeved outside the support rod 33, the handle 353 is turned, the support rod 33 is adjusted to a suitable position, the limit rod 36 is inserted into the limit hole 3531, and the limit rod 36 is further inserted into the limit groove 311 at the corresponding position, and the handle 38 is pulled to make the wire rope 37 drive the first flexible steel sheet 1 to be inserted between the two second flexible steel sheets 2 until the first flexible steel sheet 1 and the second flexible steel sheet 2 are fitted with the support rod 33 at the corresponding position, and the position of the handle 38 is adjusted. The handle 38 is mounted on two adjacent support rods 33, the wire buckle 39 is fitted with the handle 38, and then the screw of the wire buckle 39 is tightened to limit the position between the first flexible steel sheet 1 and the two second flexible steel sheets 2. After the concrete is poured, the limit rod 36 is pulled out, and the handle 353 is turned to move the support rod 33 toward the connecting box 31, and the support assembly 3 is taken out. When the first flexible steel sheet 1 and the second flexible steel sheet 2 are disassembled, the appearance quality of the concrete at the reserved hole is improved to a certain extent. At the same time, the position of the support rod 33 can be controlled to reserve circular holes of different sizes, thereby improving the turnover utilization rate of the hole template.

[0026] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0027] What has been described above are only preferred specific implementation methods of the embodiments of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A hole template with adjustable diameter, characterized in that: include: A first flexible steel sheet (1), wherein the first flexible steel sheet (1) is arc-shaped; A second flexible steel sheet (2), wherein two of the second flexible steel sheets (2) are arranged in parallel, a gap is left between the two second flexible steel sheets (2), and two ends of the first flexible steel sheet (1) are respectively inserted between the two second flexible steel sheets (2) from two ends of the second flexible steel sheet (2); A support assembly (3) is arranged between the first flexible steel sheet (1) and the second flexible steel sheet (2), and is used to control the first flexible steel sheet (1) and the second flexible steel sheet (2) to form a cylinder, and to control the diameter of the cylinder formed by the first flexible steel sheet (1) and the second flexible steel sheet (2).

2. The hole template with adjustable diameter as claimed in claim 1, characterized in that: The support assembly (3) comprises: A connection box (31), wherein the connection box (31) is cylindrical; A screw rod (32), wherein a plurality of the screw rods (32) are rotatably arranged on the outer peripheral surface of the connection box (31), and the plurality of the screw rods (32) are arranged at equal intervals along the circumference of the connection box (31); A support rod (33), wherein the positions of the plurality of support rods (33) correspond one to one with the positions of the plurality of screw rods (32), the support rod (33) is threadedly connected to the screw rods (32) at the corresponding positions, and the end of the support rod (33) away from the screw rod (32) is in contact with the first flexible steel sheet (1) or the second flexible steel sheet (2) at the corresponding position; A guide rod (34), wherein the positions of the plurality of guide rods (34) correspond to the positions of the plurality of screw rods (32) one by one, the guide rod (34) is located directly above the screw rod (32), the guide rod (34) is arranged parallel to the screw rod (32), one end of the guide rod (34) is fixedly connected to the connection box (31), a guide groove (331) is provided at a position corresponding to the support rod (33) and the guide rod (34), and the other end of the guide rod (34) is slidably connected to the guide groove (331); A driving member (35) is used to drive the plurality of screw rods (32) to rotate simultaneously.

3. The hole template with adjustable diameter as claimed in claim 2, characterized in that: The driving member (35) comprises: A driving bevel gear (351), the driving bevel gear (351) being coaxially arranged with the connection box (31), and the driving bevel gear (351) being rotatably arranged in the connection box (31); A driven bevel gear (352), wherein the plurality of driven bevel gears (352) correspond to the plurality of screw rods (32) in one-to-one position, the driven bevel gear (352) is fixedly connected to the end of the screw rod (32) located in the connection box (31), and the driven bevel gear (352) is meshed with the driving bevel gear (351) at a corresponding position; A handle (353), wherein the handle (353) is fixedly connected to the top surface of the active bevel gear (351), and the connecting shaft of the handle (353) is coaxially arranged with the active bevel gear (351).

4. The hole template with adjustable diameter as claimed in claim 3, characterized in that: A limiting hole (3531) is provided on the handle (353), and a plurality of limiting grooves (311) are provided on the top surface of the connection box (31) along the circumference of the connection axis, and two adjacent limiting grooves (311) are connected, and a limiting rod (36) is movably inserted in the limiting hole (3531), and the limiting rod (36) passes through the limiting hole (3531) and is inserted into the limiting groove (311) at the corresponding position.

5. The hole template with adjustable diameter as claimed in claim 1, characterized in that: The support assembly (3) further comprises two steel wire ropes (37), the two steel wire ropes (37) being respectively fixed to the two ends of the first flexible steel sheet (1), two through holes being provided at the center of the second flexible steel sheet (2) near the support assembly (3), the two steel wire ropes (37) passing through between the two second flexible steel sheets (2) and exiting from the through holes, the two steel wire ropes (37) being provided with a handle (38), the handle (38) being provided with two connecting holes (381), the two steel wire ropes (37) respectively passing through the two connecting holes (381), and the ends of the two steel wire ropes (37) away from the first flexible steel sheet (1) respectively passing through the two eyelets of the adjustable steel wire buckle (39).

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