A compass-shaped concrete foundation chamfering device

Abstract

This invention discloses a compass-type concrete foundation chamfering device, comprising a cylindrical mold, an intermediate rod, an intermediate shaft, a support bracket assembly, a chamfering bracket assembly, and a chamfering scraper for chamfering the circular edge of a circular concrete foundation. The support bracket assembly is mounted on the outer wall of the intermediate shaft and is installed on the cylindrical mold. The intermediate rod movably passes through the intermediate shaft, and the chamfering bracket assembly is fixedly mounted at its lower end. The chamfering scraper is mounted on the free end of the chamfering bracket assembly. This device utilizes the compass principle, has a simple structure, is easy to operate, produces high-quality chamfers, offers good operational continuity, and can be disassembled and stored for easy reuse.

Description

[0001] This invention relates to the field of power grid transmission line infrastructure construction technology, specifically a compass-shaped concrete foundation chamfering device. Background Technology

[0002] In the infrastructure industry, for exposed cylindrical or square concrete foundations, the edges and corners often need to be rounded to protect them from damage. For exposed cylindrical concrete foundations, the conventional method involves using a chamfering trowel, manually rotating it several times along the circular edge. While simple, this method relies entirely on manual operation. If the operator is not skilled enough, the final chamfer may be aesthetically unappealing, with relatively low quality, an insufficiently rounded curve, and difficulty in controlling the chamfer angle, making it overly dependent on the worker's skill level.

[0003] Therefore, how to propose a compass-shaped concrete foundation chamfering device that is easy to fix on a cylindrical mold, making the chamfering operation more convenient, can be disassembled and stored, and is easy to reuse, is the technical problem that this application needs to solve. Summary of the Invention

[0004] The purpose of this invention is to provide a compass-shaped concrete foundation chamfering device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A compass-shaped concrete foundation chamfering device includes a cylindrical mold, an intermediate rod, an intermediate shaft, a support bracket assembly, a chamfering bracket assembly, and a chamfering scraper for chamfering the circular edge of a circular concrete foundation. The support bracket assembly is installed on the outer wall of the intermediate shaft and is mounted on the cylindrical mold. The intermediate rod is movably inserted through the intermediate shaft, and the chamfering bracket assembly is fixedly installed at the lower end of the intermediate rod. The chamfering scraper is installed at the free end of the chamfering bracket assembly.

[0007] Preferably, the bottom end of the intermediate rod is fixed with a positioning pin for inserting into the center of the upper surface of the circular concrete foundation, and a central positioning plate is also fixedly installed at the connection between the positioning pin and the intermediate rod, which can position and support the chamfering bracket assembly, so that the arc-shaped chamfer scraped by the chamfering scraper has good continuity and flatness.

[0008] Preferably, the support bracket assembly includes at least one pair of transverse support rods and longitudinal support rods. The inner end of the transverse support rod is inserted and fixed in the docking cylinder distributed on the outer wall of the intermediate shaft cylinder. The outer end of the transverse support rod is rotatably connected to the longitudinal support rod through a rotating shaft. The longitudinal support rod is clamped and installed on the cylindrical mold by a clamping assembly.

[0009] Preferably, the clamping assembly includes an upper clamping plate, a lower clamping plate, and a spring. The rear end of the lower clamping plate is integrally connected to a guide groove plate. The rear end of the upper clamping plate has a slot for movably fitting onto the guide groove plate. A guide block is also fixedly installed at the rear end of the upper clamping plate. The guide block is slidably connected to the inner groove of the guide groove plate. A spring is fixedly connected between the guide block and the lower clamping plate. The bottom end of the longitudinal support rod is fixedly installed at the top end of the guide groove plate. An annular retaining edge extends from the upper end of the cylindrical mold. The upper and lower clamping plates are clamped onto the annular retaining edge under the elastic force of the spring.

[0010] Preferably, the chamfering bracket assembly includes a bottom sleeve seat and at least one pair of chamfering bracket crossbars. The bottom sleeve seat is fitted and fixed to the lower end of the middle rod. The inner end of the chamfering bracket crossbar is inserted and fixed in the mating interface distributed on the outer wall of the bottom sleeve seat. The chamfering scraper is also integrally connected to a mudguard, and a bushing is integrally connected to the mudguard. The outer end of the chamfering bracket crossbar is inserted and fixed in the bushing.

[0011] Preferably, both the transverse support rod and the chamfered bracket crossbar are telescopic rods, so that the device of the present invention can adapt to cylindrical molds of different sizes.

[0012] Preferably, rubber pads are fixedly installed on the opposite sides of the upper and lower clamping plates, so that the clamping assembly can better clamp the annular retaining edge.

[0013] Preferably, the lower end face of the annular retaining edge is further provided with multiple sets of side baffles, and each set of side baffles forms a limiting groove for cooperating with the lower clamping plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This device utilizes the principle of a compass, has a simple structure, is easy to operate, produces high-quality chamfers, and offers good operational continuity.

[0016] 2. The device of the present invention is easy to install and fix on the cylindrical mold. The operator only needs to turn the operating handle to achieve continuous chamfering, ensuring the quality of the chamfering process, improving the aesthetics of the process, and avoiding the chamfering quality being affected by the operator's skill level.

[0017] 3. The support bracket assembly and chamfer bracket assembly of the present invention have reasonable structural design, which can achieve relatively good support and positioning, and ensure that the movement path of the chamfer scraper is a stable circle, so that the arc chamfer scraped by the chamfer scraper has good continuity and flatness; in addition, the device can be disassembled and stored for easy reuse. Attached Figure Description

[0018] Figure 1 A three-dimensional structural schematic diagram of a compass-shaped concrete foundation chamfering device;

[0019] Figure 2 A schematic diagram of the three-dimensional structure of a compass-shaped concrete foundation chamfering device concealing a cylindrical mold;

[0020] Figure 3 A schematic diagram of a compass-shaped concrete foundation chamfering device concealing a cylindrical mold and a circular concrete foundation.

[0021] Figure 4 A chamfering device for a compass-shaped concrete foundation Figure 3 Enlarged structural diagram at point A;

[0022] Figure 5 A schematic cross-sectional view of a compass-shaped concrete foundation chamfering device;

[0023] Figure 6 A chamfering device for a compass-shaped concrete foundation Figure 5 Enlarged structural diagram at point B.

[0024] In the diagram: 100-cylindrical mold, 101-circular retaining edge, 200-circular concrete foundation, 1-operating handle, 2-intermediate rod, 21-center positioning plate, 22-positioning pin, 3-transverse support rod, 4-intermediate shaft cylinder, 5-longitudinal support rod, 51-rotating shaft, 6-clamp assembly, 61-upper clamping plate, 62-lower clamping plate, 621-guide groove plate, 622-lower pin, 63-guide block, 631-upper pin, 64-spring, 7-bottom sleeve seat, 8-beveled bracket crossbar, 9-beveled scraper, 91-mudguard, 92-shaft sleeve. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figures 1-6 A compass-shaped concrete foundation chamfering device includes a cylindrical mold 100, an intermediate rod 2, an intermediate shaft cylinder 4, a support bracket assembly, a chamfering bracket assembly, and a chamfering scraper 9 for chamfering the circular edge of the circular concrete foundation 200. The support bracket assembly is installed on the outer wall of the intermediate shaft cylinder 4 and is mounted on the cylindrical mold 100.

[0027] The intermediate rod 2 is movably inserted into the intermediate shaft cylinder 4. A chamfering bracket assembly is fixedly installed at the lower end of the intermediate rod 2, and a chamfering scraper 9 is installed at the free end of the chamfering bracket assembly. Obviously, for ease of operation, an operating handle 1 can also be connected and installed at the top of the intermediate rod 2. The operating handle 1 can be specifically divided into: straight, cross-shaped, or circular.

[0028] The working principle of this invention is as follows: The compass-shaped concrete foundation chamfering device of this invention is fixedly installed on the cylindrical mold 100 through the support bracket assembly. The position of the middle rod 2 is adjusted up and down so that the chamfering scraper 9 can be embedded in the upper circular edge of the circular concrete foundation 200. Then, by rotating the middle rod 2, the rotating chamfering scraper 9 can rotate the upper circular edge of the circular concrete foundation 200 into an arc-shaped chamfer. This device utilizes the compass principle, has a simple structure, is easy to operate, produces high-quality chamfers, and has good operational continuity.

[0029] To achieve better support and positioning, and to ensure that the chamfering scraper 9 moves in a stable circular path, a positioning pin 22 for insertion into the center of the upper surface of the circular concrete foundation 200 is fixedly attached to the bottom end of the intermediate rod 2. A central positioning plate 21 is also fixedly installed at the connection between the positioning pin 22 and the intermediate rod 2. In actual operation, the positioning pin 22 is inserted into the center of the upper surface of the freshly poured circular concrete foundation 200, and the central positioning plate 21 is attached to the upper surface of the circular concrete foundation 200, thereby positioning and supporting the chamfering bracket assembly, so that the arc-shaped chamfer scraped by the chamfering scraper 9 has good continuity and flatness.

[0030] As a specific embodiment, the support bracket assembly includes at least one pair of transverse support rods 3 and longitudinal support rods 5. The inner end of the transverse support rod 3 is inserted and fixed in the connecting cylinders 41 distributed on the outer wall of the intermediate shaft cylinder 4. The outer end of the transverse support rod 3 is rotatably connected to the longitudinal support rod 5 via a rotating shaft 51. The longitudinal support rod 5 is clamped and mounted on the cylindrical mold 100 via a clamping assembly 6. The rotatable connection between the outer end of the transverse support rod 3 and the longitudinal support rod 5 via the rotating shaft 51 allows the support bracket assembly to be folded and stored when not in use, reducing space occupation.

[0031] The clamp assembly 6 includes an upper clamping plate 61, a lower clamping plate 62, and a spring 64. The rear end of the lower clamping plate 62 is integrally connected to a guide groove plate 621. The rear end of the upper clamping plate 61 has a slot for movably fitting onto the guide groove plate 621. A guide block 63 is also fixedly installed at the rear end of the upper clamping plate 61. The guide block 63 is slidably connected to the inner groove of the guide groove plate 621. A spring 64 is fixedly connected between the guide block 63 and the lower clamping plate 62. Specifically, an upper pin 631 is installed on the guide block 63. A clamping plate through hole is opened at the corresponding position on the lower clamping plate 62. A lower pin 622 is installed at the lower end of the clamping plate through hole. The two ends of the spring 64 are hooked onto the upper pin 631 and the lower pin 622, respectively.

[0032] The bottom end of the longitudinal support rod 5 is fixedly installed on the top end of the guide groove plate 621. The upper end of the cylindrical mold 100 extends with an annular retaining edge 101. The upper clamping plate 61 and the lower clamping plate 62 are clamped on the annular retaining edge 101 under the elastic force of the spring 64.

[0033] In this application, overcome the tension of the spring 64 and lift the upper clamp 61 upwards. Then, place the upper clamp 61 and the lower clamp 62 against the upper and lower ends of the annular stop 101 respectively. Release the upper clamp 61, and under the tension of the spring 64, the upper clamp 61 and the lower clamp 62 can be clamped on the annular stop 101, thereby installing and positioning the entire device.

[0034] The chamfering bracket assembly includes a bottom sleeve seat 7 and at least one pair of chamfering bracket crossbars 8. The bottom sleeve seat 7 is fitted and fixed to the lower end of the intermediate rod 2. The inner end of the chamfering bracket crossbar 8 is inserted and fixed into the mating interfaces distributed on the outer wall of the bottom sleeve seat 7. The chamfering scraper 9 is also integrally connected to a mudguard 91, and a bushing 92 is integrally connected to the mudguard 91. The outer end of the chamfering bracket crossbar 8 is inserted and fixed into the bushing 92. The assembly structure between the chamfering scraper 9 and the chamfering bracket crossbar 8 of the present invention is simple in design, and it is easy to disassemble and replace the chamfering scraper 9 to facilitate the processing of chamfers at different angles.

[0035] In order to enable the device of the present invention to adapt to cylindrical molds 100 of different sizes, the transverse support rod 3 and the chamfered bracket crossbar 8 can be specifically adopted as telescopic rods. The telescopic rods can be provided with scales so that the staff can clearly understand the extension length of the telescopic rods.

[0036] In order to enable the clamping assembly 6 to better clamp the annular retaining edge 101, rubber pads are fixedly installed on the opposite sides of the upper clamping plate 61 and the lower clamping plate 62.

[0037] Furthermore, in order to better position the clamping assembly 6, multiple sets of side baffles are distributed on the lower end face of the annular retaining edge 101. Each set of side baffles forms a limiting groove for cooperating with the lower clamping plate 62. The limiting groove can stably limit the lower clamping plate 62 in the width direction. In addition, in order to stably limit the clamping assembly 6 in the radial direction, the annular retaining edge 101 can also be provided with a central hole corresponding to each limiting groove. The lower clamping plate 62 and the upper clamping plate 61 are also provided with positioning holes at corresponding positions. After clamping is completed, positioning pins are inserted into the central holes and positioning holes to completely limit the position of the clamping assembly 6.

[0038] In this invention, terms such as "upper," "lower," "left," "right," "front," "back," "vertical," "horizontal," "side," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only to facilitate the description of the structural relationships of the various components or elements of this invention and do not specifically refer to any component or element in this invention. They should not be construed as limiting the invention.

Claims

1. A compass-shaped concrete foundation chamfering device, characterized in that: Includes a cylindrical mold (100), an intermediate rod (2), an intermediate shaft cylinder (4), a support bracket assembly, a chamfering bracket assembly, and a chamfering scraper (9) for chamfering the round edge of a circular concrete foundation (200). The support bracket assembly is installed on the outer wall of the intermediate shaft cylinder (4), and the support bracket assembly is installed on the cylindrical mold (100). The intermediate rod (2) is movably inserted in the intermediate shaft cylinder (4). A chamfering bracket assembly is fixedly installed at the lower end of the intermediate rod (2), and a chamfering scraper (9) is installed at the free end of the chamfering bracket assembly. The bottom end of the intermediate rod (2) is fixed with a positioning pin (22) for inserting into the center of the upper surface of the circular concrete foundation (200). A central positioning plate (21) is also fixedly installed at the connection between the positioning pin (22) and the intermediate rod (2). The support bracket assembly includes at least one pair of transverse support rods (3) and longitudinal support rods (5). The inner end of the transverse support rod (3) is inserted and fixed in the docking cylinders (41) distributed on the outer wall of the intermediate shaft cylinder (4). The outer end of the transverse support rod (3) is rotatably connected to the longitudinal support rod (5) through a rotating shaft (51). The longitudinal support rod (5) is clamped and installed on the cylindrical mold (100) through a clamping assembly (6). The clamping assembly (6) includes an upper clamping plate (61), a lower clamping plate (62), and a spring (64). The lower clamping plate (62) is integrally connected to a guide groove plate (621) at its rear end. The upper clamping plate (61) has a slot at its rear end for movably fitting onto the guide groove plate (621). A guide block (63) is also fixedly installed at the rear end of the upper clamping plate (61). The guide block (63) is slidably connected to the inner groove of the guide groove plate (621). A spring (64) is fixedly connected between the guide block (63) and the lower clamping plate (62). The bottom end of the longitudinal support rod (5) is fixedly installed on the top end of the guide groove plate (621). The upper end of the cylindrical mold (100) extends with an annular retaining edge (101). The upper clamping plate (61) and the lower clamping plate (62) are clamped on the annular retaining edge (101) under the elastic force of the spring (64). The chamfering bracket assembly includes a bottom sleeve seat (7) and at least one pair of chamfering bracket crossbars (8). The bottom sleeve seat (7) is fitted and fixed to the lower end of the middle rod (2). The inner end of the chamfering bracket crossbar (8) is inserted and fixed in the mating interface distributed on the outer wall of the bottom sleeve seat (7). The chamfering scraper (9) is also integrally connected to a mudguard (91). A bushing (92) is integrally connected to the mudguard (91). The outer end of the chamfering bracket crossbar (8) is inserted and fixed in the bushing (92).

2. The compass-shaped concrete foundation chamfering device according to claim 1, characterized in that: Both the transverse support rod (3) and the chamfered bracket crossbar (8) are telescopic rods.

3. The compass-shaped concrete foundation chamfering device according to claim 2, characterized in that: Rubber pads are fixedly installed on the opposite sides of the upper clamping plate (61) and the lower clamping plate (62).

4. A compass-shaped concrete foundation chamfering device according to claim 2, characterized in that: The lower end face of the annular retaining edge (101) is also provided with multiple sets of side baffles, and each set of side baffles forms a limiting groove for cooperating with the lower clamping plate (62).

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