An adjustable curvature arc template

Abstract

An adjustable curvature arc-shaped template includes a panel, back ribs, and an arching structure. Two back ribs are arranged along the short side of the template and parallel to the long side, with their outermost edges aligned with the two edges of the panel. The arching structure has two ends embedded in corresponding limiting holes of the two back ribs. The arching structure includes a positive threaded rod, a negative threaded rod, a threaded connector, a threaded rod connecting rod, and a back rib connector. The threaded ends of the positive and negative threaded rods are rotated and screwed into the threaded holes at both ends of the threaded connector in the hollow structure. The other end is inserted into the female ring of the corresponding back rib connector through a female buckle on the threaded rod connecting rod. The anchor block of the back rib connector is embedded in the limiting hole of the corresponding back rib. This template utilizes the rotation of the threaded connector to cause the positive and negative threaded rods to contract, thus arching the panel. The curvature of the panel is adjusted according to different contraction states, effectively solving the problems of poor forming quality of circular and arched concrete structures and the difficulty in reusing arc-shaped curvature due to its inability to be adjusted.

Description

Technical Field

[0001] This utility model belongs to the field of engineering construction technology, specifically an arc-shaped template with adjustable curvature. Background Technology

[0002] Circular and arched structures are very common in engineering construction. Ensuring the accuracy of the arc is crucial to the appearance quality of the concrete structure, which makes the choice of formwork type and construction method paramount. For the construction of circular and arched structures, traditional methods mostly employ broken-segment formwork or custom-made steel formwork. Broken-segment formwork leads to inaccurate curvature of the concrete structure, requiring secondary grinding of formwork joints. Custom-made steel formwork is expensive and cannot be applied to structures with varying curvatures. Utility Model Content

[0003] This invention provides an adjustable curvature arc template, which can effectively solve the problems of poor forming quality of circular and arched concrete structures and the problem of unadjustable curvature of arc templates making them difficult to reuse.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] This utility model provides an adjustable curvature arc template, which includes a panel, back ribs, and an arching structure. The panel is mounted on two back ribs, which serve as support structures for the panel. The back ribs are arranged along the short side of the arc template, and their length is the same as the short side of the panel. Two back ribs are arranged parallel to each other along the long side of the arc template. The bottom surface of the back ribs contacts the panel, and the back ribs are fixedly connected to the panel. The outermost edges of the back ribs are aligned with the two edges of the arc template. Limiting holes are provided on the sides of the back ribs, and corresponding limiting holes are provided on the two back ribs. The arching structure is disposed between the two back ribs, and its two ends are respectively embedded in the limiting holes of the two back ribs. The arching structure includes a positive threaded screw, a negative threaded screw, a threaded connector, a screw connecting rod, and a back rib connector. Each arched structure has two back rib connectors. Each back rib connector includes an anchor block, an anchor block connecting rod, and a female ring buckle. The anchor block connecting rod passes through the limiting hole of the corresponding back rib. The two ends of the anchor block connecting rod are connected to the anchor block and the female ring buckle, respectively. The anchor block is embedded in the limiting hole of the corresponding back rib. The threaded connector is a hollow structure with threaded holes at both ends. The threaded ends of the positive thread screw and the negative thread screw are rotated and screwed into the threaded holes at both ends of the threaded connector. The other end of the positive thread screw / negative thread screw is fixedly connected to the end of the screw connecting rod away from the back rib. The end of the screw connecting rod near the back rib is fixedly connected to the female ring buckle, which is fitted into the female ring buckle of the corresponding back rib connector. The threaded connector is tightened as needed to shorten the distance between the two back ribs, so that the panel arches to form the required curvature.

[0006] The panel is made of plywood and has a smooth surface.

[0007] The back rib is securely connected to the panel by multiple screws.

[0008] The arching structure is vertically installed between the two back ribs, and there are two sets of the arching structure.

[0009] The anchor block connecting rod is welded to the mother ring and the anchor block to form a whole.

[0010] Two limiting holes are provided on each back rib for the anchor block connecting rod to pass through and for the anchor block to be embedded. The limiting holes on the two back ribs are set accordingly. The larger limiting hole is adapted to the shape and size of the anchor block, and the smaller hole is adapted to the shape and size of the anchor block connecting rod.

[0011] The anchor block has a hexagonal structure; the large hole of the limiting hole is hexagonal, and the depth of the large hole is greater than the thickness of the anchor block; the small hole of the limiting hole is circular, and the diameter of the small hole is adapted to the diameter of the anchor block connecting rod.

[0012] The threaded connector has a threaded hole inner diameter and internal thread that match the external thread of the positive / negative thread screw, and the length is appropriate.

[0013] The screw connecting rod, the sub-ring buckle, and the positive / negative thread screw are welded together as a whole.

[0014] The diameter of the screw connecting rod is compatible with the diameter of the round steel ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model utilizes the rotation of a threaded connector to cause the positive and negative threaded screws to contract, thereby arching the panel and adjusting the curvature of the panel according to different contraction states.

[0017] 2. This utility model effectively solves the problems of poor forming quality of circular and arched concrete structures and the problem of unadjustable curvature of arcs making them difficult to reuse.

[0018] 3. This utility model is simple to operate, and achieves curvature adjustment through conventional components such as positive thread screws, negative thread screws, and threaded connectors. It is inexpensive, easy to install and dismantle, and highly safe. Attached Figure Description

[0019] Figure 1 This is the front view of this utility model;

[0020] Figure 2 This is a layered display diagram of this utility model;

[0021] Figure 3 This is a detailed drawing of the connection between the rings of this utility model;

[0022] Figure 4 This is a detailed drawing of the threaded connector of this utility model.

[0023] Figure reference numerals:

[0024] 1--Panel, 2--Back rib, 3--Straight threaded screw, 4--Reverse threaded screw, 5--Limiting hole, 6--Threaded connector, 7--Screw rod, 8--Back rib connector, 9--Sub-ring buckle.

[0025] 801--Anchor block, 802--Anchor block connecting rod, 803--Female ring buckle. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments. These specific embodiments are further explanations of the principle of the present invention and are not intended to limit the present invention in any way. Any technology that is the same as or similar to the present invention does not exceed the protection scope of the present invention.

[0027] See Figures 1-4 This utility model provides an adjustable curvature arc-shaped template, which includes a panel 1, back ribs 2, and an arched structure. The panel 1 is made of plywood, possessing certain strength and toughness, with a smooth surface, and is in direct contact with concrete. The back ribs 2 serve as the supporting structure for the panel 1, possessing high strength and providing support and reinforcement. Two back ribs 2 are arranged parallel to the short side of the arc-shaped template and parallel to the long side, with their length matching the short side length of the panel 1. The panel 1 is mounted on the two back ribs 2, with the bottom surface of the back ribs 2 contacting the panel 1. The back ribs 2 and panel 1 are securely connected by multiple screws, or they can be welded together. The two back ribs 2 are located below both ends of the panel 1, with their outermost edges aligned with the two edges of the arc-shaped template. Limiting holes 5 are provided on the sides of the back ribs 2, with corresponding limiting holes 5 on the two back ribs 2.

[0028] The arching structure is vertically set between the two back ribs 2. The two ends of the arching structure are respectively embedded in the limiting holes 5 of the two back ribs 2. There are two sets of arching structures. Each set of arching structures includes a positive thread screw 3, a negative thread screw 4, a threaded connector 6, a screw connecting rod 7, and a back rib connecting piece 8.

[0029] Each arched structure is equipped with two back rib connectors 8. Each back rib connector 8 includes an anchor block 801, an anchor block connecting rod 802, and a female ring buckle 803. The female ring buckle 803 has high strength, high rigidity, and is not easily deformed. The anchor block connecting rod 802 passes through the limiting hole 5 of the corresponding back rib 2. The two ends of the anchor block connecting rod 802 are respectively connected to the anchor block 801 and the female ring buckle 803. The anchor block 801 is embedded in the limiting hole 5 of the corresponding back rib 2. The anchor block connecting rod 802, the female ring buckle 803, and the anchor block 801 are welded into a whole. Two limiting holes 5 are provided on each back rib 2 for the anchor block connecting rod 802 to pass through and the anchor block 801 to be embedded. The limiting holes 5 on the two back ribs 2 are correspondingly set. The larger hole of the limiting hole 5 is adapted to the shape and size of the anchor block 801, and the smaller hole is adapted to the shape and size of the anchor block connecting rod 802. In this embodiment, the anchor block 801 has a hexagonal structure. The larger hole of the limiting hole 5 is hexagonal, and the depth of the larger hole is greater than the thickness of the anchor block 801, so that the anchor block 801 cannot rotate after being embedded in it. The smaller hole of the limiting hole 5 is circular, and the diameter of the smaller hole is adapted to the diameter of the anchor block connecting rod 802.

[0030] The threaded connector 6 is a hollow structure with threaded holes at both ends. The inner diameter and internal thread of the threaded holes in the threaded connector 6 are highly matched with the external threads of the positive threaded screw 3 / negative threaded screw 4, and the length is appropriate. The threaded ends of the positive threaded screw 3 and the negative threaded screw 4 are screwed into the threaded holes at both ends of the threaded connector 6. The other end of the positive threaded screw 3 / negative threaded screw 4 is fixedly connected to the end of the screw connecting rod 7 away from the back rib 2. The end of the screw connecting rod 7 near the back rib 2 is fixedly connected to the sub-ring 9, which is fitted into the female ring 803 of the corresponding back rib connector 8. Both the screw connecting rod 7 and the sub-ring 9 are high in strength, rigidity, and not easily deformed. The diameter of the screw connecting rod 7 is compatible with the diameter of the round steel of the sub-ring 9. The screw connecting rod 7, the sub-ring 9, and the positive threaded screw 3 / negative threaded screw 4 are welded together as a whole. According to actual needs, the threaded connector 6 is screwed to shorten the distance between the two back ribs 2, causing the panel 1 to arch to form the required curvature. The screws at both ends can be tightened or loosened synchronously by turning the threaded connector 6, thus adjusting the curvature of the panel 1.

[0031] Installation process: First, fabricate the back rib 2, and open two limiting holes 5 on it. Then, install the back rib connector 8, embedding the anchor block 801 into the limiting hole 5, and weld the anchor block connecting rod 802, the female ring buckle 803, and the anchor block 801 into a whole. Next, fabricate the positive threaded screw 3 and the negative threaded screw 4, connecting the screw connecting rod 7 and the female ring buckle 9 to the positive threaded screw 3 and the negative threaded screw 4 into a whole. Then, rotate and screw the threaded ends of the positive threaded screw 3 and the negative threaded screw 4 into the two ends of the threaded connector 6 respectively. Then, insert the female ring buckle 9 into the female ring buckle 803 of the back rib connector 8. Finally, install the panel 1 on the two back ribs 2, with the long side of the back rib 2 coinciding with the short side of the panel 1.

[0032] During construction, rotating the threaded connector 6 causes the positive threaded screw 3 and the negative threaded screw 4 to retract synchronously, shortening the distance between the two back ribs 2 at both ends of the panel 1, thus arching the panel 1. After forming the required curvature according to actual needs, the threaded connector 6 is stopped, and the panels are assembled into an arc-shaped template with adjustable curvature.

Claims

1. A curvature-adjustable arc-shaped template, characterized in that: The arc-shaped template includes a panel (1), back ribs (2), and an arched structure. The panel (1) is installed on two back ribs (2). The back ribs (2) are the supporting structures for the panel (1). The back ribs (2) are set along the short side of the arc-shaped template, and the length of the back ribs (2) is the same as the short side length of the panel (1). Two back ribs (2) are set parallel to each other along the long side of the arc-shaped template. The bottom surface of the back ribs (2) contacts the panel (1). The back ribs (2) are fixedly connected to the panel (1). The outermost edges of the back ribs (2) are respectively... Aligned with the two edges of the arc-shaped template; the side of the back rib (2) is provided with limiting holes (5), and the limiting holes (5) on the two back ribs (2) are set accordingly; the arching structure is set between the two back ribs (2), and the two ends of the arching structure are respectively embedded in the limiting holes (5) of the two back ribs (2). The arching structure includes a positive thread screw (3), a negative thread screw (4), a thread connector (6), a screw connecting rod (7), and a back rib connector (8); each set of arching structures is provided with two back rib connectors (8), and a single The back rib connector (8) includes an anchor block (801), an anchor block connecting rod (802), and a female ring buckle (803). The anchor block connecting rod (802) passes through the limiting hole (5) of the corresponding back rib (2). The two ends of the anchor block connecting rod (802) are respectively connected to the anchor block (801) and the female ring buckle (803). The anchor block (801) is embedded in the limiting hole (5) of the corresponding back rib (2). The threaded connector (6) is a hollow structure with threaded holes at both ends. The threaded ends of the positive thread screw (3) and the negative thread screw (4) are... Rotate and screw into the threaded holes at both ends of the threaded connector (6); the other end of the positive threaded screw (3) / negative threaded screw (4) is fixedly connected to the end of the screw rod (7) away from the back rib (2), and the end of the screw rod (7) near the back rib (2) is fixedly connected to the sub-ring buckle (9), and the sub-ring buckle (9) is inserted into the female ring buckle (803) of the corresponding back rib connector (8); according to actual needs, screw the threaded connector (6) to shorten the distance between the two back ribs (2), so that the panel (1) arches to form the required curvature.

2. The curved template with adjustable curvature according to claim 1, characterized in that: The panel (1) is made of plywood and has a smooth surface.

3. The curved template with adjustable curvature according to claim 1, characterized in that: The back rib (2) is firmly connected to the panel (1) by multiple screws.

4. The curved template with adjustable curvature according to claim 1, characterized in that: The arching structure is vertically set between the two back ribs (2), and there are two sets of arching structures.

5. The curved template with adjustable curvature according to claim 1, characterized in that: The anchor block connecting rod (802) is welded together with the mother ring buckle (803) and the anchor block (801) to form a whole.

6. The arc-shaped template with adjustable curvature according to claim 1, characterized in that: Two limiting holes (5) are provided on each back rib (2) for the anchor block connecting rod (802) to pass through and the anchor block (801) to be embedded. The limiting holes (5) on the two back ribs (2) are set accordingly. The large hole of the limiting hole (5) is adapted to the shape and size of the anchor block (801), and the small hole is adapted to the shape and size of the anchor block connecting rod (802).

7. The curved template with adjustable curvature according to claim 6, characterized in that: The anchor block (801) has a hexagonal structure; the large hole of the limiting hole (5) is hexagonal, and the depth of the large hole is greater than the thickness of the anchor block (801); the small hole of the limiting hole (5) is circular, and the diameter of the small hole is adapted to the diameter of the anchor block connecting rod (802).

8. The curved template with adjustable curvature according to claim 1, characterized in that: The inner diameter of the threaded hole and the internal thread of the threaded connector (6) match the external thread of the positive threaded screw (3) / negative threaded screw (4), and the length is appropriate.

9. The curved template with adjustable curvature according to claim 1, characterized in that: The screw connecting rod (7), the sub-ring buckle (9), and the positive thread screw (3) / negative thread screw (4) are welded together as a whole.

10. The arc-shaped template with adjustable curvature according to claim 1, characterized in that: The diameter of the screw connecting rod (7) is compatible with the diameter of the round steel of the sub-ring buckle (9).

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