CN114654925A - Three-heart arch section rapid circle drawing device - Google Patents

Abstract

The invention relates to a quick circle drawing device for a three-core arch section, comprising a positioning mechanism and a steel bar main body. The positioning mechanism includes a positioning frame, an insertion tip, a driving component, a sliding block and a suction component. The positioning frame has a chute, which is driven by the driving component. The slider slides in the chute to the side close to the insertion tip, so that the slider drives the suction assembly to slide out from the positioning frame, until the sliding height of the suction assembly is higher than the height of the insertion tip, place the suction assembly At the designated point on the placement surface, the positioning frame is supported by the suction assembly. At this time, the suction assembly generates negative pressure by extracting the air between the placement surface to achieve the effect of fixing the positioning frame. When the surface is too smooth, the steel bar is easy to slip during the rotation process, which affects the effect of drawing a circle.

Description

A rapid circle drawing device for three-center arch section

technical field

The invention relates to the technical field of drawing tools, in particular to a device for quickly drawing circles on a three-center arch section.

Background technique

The mining construction area adopts the integrated construction of excavation, drilling and transportation. In order to ensure that the roadway space can meet the construction requirements, the roadway section needs to be designed as a three-core arch. In the design process of the roadway, the traditional way to draw a circle from top to bottom is to measure a point at an interval of 300mm. Not only does it take a long time to draw a circle, but also the measurement data of each person is inconsistent, resulting in poor roadway formation, and the two shoulder sockets are not on the line. Therefore, it is necessary to draw a circle by drawing a circle. The device draws a circle. The existing circle drawing device consists of folded steel bars to accommodate the needs of circles of different sizes.

When drawing a circle, the center point of the rebar is determined on the placement surface, and one end of the rebar is placed on the center point on the placement surface, and the other end is used to fix the drawing tool. By controlling the rebar to rotate on the center point, the drawing tool can draw a circle. , when the placement surface is too smooth, the steel bar is easy to slip during the rotation process, thus affecting the effect of drawing a circle.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a device for quickly drawing circles on a cross-section of a three-core arch, which aims to solve the problem that when the placement surface is too smooth, the steel bars tend to slip during the rotation process, thereby affecting the effect of drawing circles.

In order to achieve the above purpose, the present invention provides a device for quickly drawing a circle for a three-core arch section, which includes a positioning mechanism and a steel bar body; The positioning frame has an exhaust port and a chute, the insertion tip is fixedly connected with the positioning frame, and is located at the bottom of the positioning frame, the driving component is arranged in the sliding groove, and the sliding block is connected to the driving The assembly is threadedly connected and slidably connected with the positioning frame, and is located in the chute. Outer side wall of the positioning frame.

Wherein, the suction assembly includes a gas collecting pipe, a fan and a suction cup, the gas collecting pipe is fixedly connected with the sliding block and is located in the positioning frame, and the fan is fixedly connected with the gas collecting pipe and is located close to the On one side of the exhaust port, the suction cup communicates with the gas collecting pipe and is located on the side close to the insertion tip.

Wherein, the steel bar body includes a rotating shaft, a fixing frame, an extension frame and a fixing assembly, the rotating shaft is fixedly connected with the positioning frame, and is located on the outer side wall of the positioning frame, the fixing frame is rotatably connected with the rotating shaft, and Located around the rotating shaft, the extension frame is slidably connected with the fixing frame, and is located on the inner side wall of the fixing frame, and the fixing assembly is arranged on one side of the fixing frame.

Wherein, the fixing assembly includes a positioning pin and a top plug, the positioning pin is threadedly connected with the fixing frame and penetrates through the fixing frame, and the top plug is rotatably connected with the positioning pin and is connected with the fixing frame slidably attached and located on the side close to the extension frame.

Wherein, the fixing assembly further includes a handle, the handle is fixedly connected with the positioning pin, and is located on the side away from the top plug.

Wherein, the positioning mechanism further includes a dustproof net, the dustproof net is fixedly connected with the positioning frame, and is located at the exhaust port.

The device for quickly drawing a circle with a three-center arch section of the present invention drives the sliding block to slide in the chute to the side close to the insertion tip through the driving component, so that the sliding block drives the suction The air assembly slides out from the positioning frame until the height of the air suction assembly is higher than the height of the insertion tip, then the air suction assembly is placed on the designated point on the placement surface, The suction assembly supports the positioning frame. At this time, the suction assembly generates negative pressure by extracting the air between the suction assembly and the placement surface to achieve the effect of fixing the positioning frame, which solves the problem when the placement surface is too smooth. , the steel bar is easy to slip during the rotation process, which affects the effect of drawing a circle.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a device for quickly drawing circles on a cross-section of a three-core arch provided by the present invention.

FIG. 2 is a front view of a device for quickly drawing circles on a three-center arch section provided by the present invention.

FIG. 3 is a cross-sectional view taken along the A-A plane of FIG. 2 .

FIG. 4 is a cross-sectional view taken along the B-B plane of FIG. 2 .

1-Positioning mechanism, 2-Rebar body, 3-Positioning frame, 4-Insert tip, 5-Chute, 6-Drive assembly, 7-Slider, 8-Suction assembly, 9-Exhaust port, 10-Set Air pipe, 11-fan, 12-suction cup, 13-rotating shaft, 14-fixing frame, 15-extension frame, 16-fixing component, 17-positioning pin, 18-top plug, 19-handle, 20-dust net, 21 -Extension rod, 22-fixed head, 23-motor, 24-screw, 25-positioning ring, 26-slip pad.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

Please refer to FIG. 1 to FIG. 4 , the present invention provides a rapid circle drawing device for a three-center arch section, which includes a positioning mechanism 1 and a steel bar main body 2 .

The positioning mechanism 1 includes a positioning frame 3, an insertion tip 4, a driving assembly 6, a sliding block 7 and a suction assembly 8. The positioning frame 3 has an exhaust port 9 and a chute 5. The insertion tip 4 is connected to the The positioning frame 3 is fixedly connected and located at the bottom of the positioning frame 3 , the driving assembly 6 is arranged in the chute 5 , and the sliding block 7 is threadedly connected with the driving assembly 6 and is connected with the positioning frame 3 Slidingly connected and located in the chute 5 , the suction assembly 8 is arranged on the side of the slider 7 close to the exhaust port 9 , and the rebar main body 2 is arranged on the outer side wall of the positioning frame 3 .

In this embodiment, the positioning frame 3 of the positioning mechanism 1 provides installation conditions for the rebar main body 2, and the rebar main body 2 is used to draw a circle. When drawing a circle, first determine the center of the circle and fix it on the placement surface point, insert the insertion tip 4 into the fixing point, at this time, the rebar main body 2 on the positioning frame 3 is located at the center point of the circle, and then draw a circle through the rebar main body 2, when the placement surface is too smooth Then, the sliding block 7 is driven by the driving assembly 6 to slide in the sliding groove 5 to the side close to the insertion tip 4, so that the sliding block 7 drives the suction assembly 8 from the positioning The frame 3 slides out until the suction assembly 8 coincides with the exhaust port 9. At this time, the sliding height of the suction assembly 8 is higher than the height of the insertion tip 4, because the insertion tip 4 The distance from the rebar main body 2 is not equal to the distance between the air intake assembly 8 and the rebar main body 2 , so it needs to be re-determined according to the distance between the air intake assembly 8 and the rebar main body 2 The suction assembly 8 is then placed on the fixed point on the placement surface, and the positioning frame 3 is supported by the suction assembly 8. At this time, the suction assembly 8 passes through the extraction and placement surface. The way of generating negative pressure in the air between them achieves the effect of fixing the positioning frame 3, because when the suction assembly 8 is fixed to the positioning frame 3, the height of the positioning frame 3 and the placing surface is greater than the insertion surface. the height of the tip 4, so the steel main body 2 is provided with two scale reference lines, one is used for reference when the insertion tip 4 is fixed to the positioning frame 3, and the other is used for the suction assembly 8 pair The positioning frame 3 is used for reference when fixing, which solves the problem that when the placement surface is too smooth, the steel bars are easy to slip during the rotation process, thereby affecting the effect of drawing a circle.

Further, the suction assembly 8 includes a gas collecting pipe 10, a fan 11 and a suction cup 12. The gas collecting pipe 10 is fixedly connected with the slider 7 and is located in the positioning frame 3. The fan 11 is connected to the The gas collecting pipe 10 is fixedly connected and is located on the side close to the exhaust port 9, and the suction cup 12 communicates with the gas collecting pipe 10 and is located on the side close to the insertion tip 4; the positioning mechanism 1 also includes The dustproof net 20 is fixedly connected with the positioning frame 3 and is located at the exhaust port 9 .

In this embodiment, the fan 11 on the air collecting pipe 10 draws out the air in the suction cup 12 and the air collecting pipe 10 and discharges it through the exhaust port 9 , so that the suction cup 12 generates negative pressure and is adsorbed on the suction cup 12 . face. The dustproof net 20 can prevent external foreign objects from blocking the exhaust port 9 and affect the air outlet efficiency of the fan 11. The suction cup 12 is provided with a filter screen, which can prevent the fan 11 from being placed in the air when pumping air. The impurities on the surface enter into the fan 11 through the suction cup 12 and the gas collecting pipe 10, causing blockage to the fan 11. After the circle is drawn, the fan 11 outputs reversely, bringing the air into the fan 11. In the gas collecting pipe 10 and the suction cup 12, when the suction cup 12 and the external pressure are the same, the suction cup 12 can be removed from the placing plate.

Further, the rebar main body 2 includes a rotating shaft 13, a fixing frame 14, an extension frame 15 and a fixing assembly 16. The rotating shaft 13 is fixedly connected with the positioning frame 3 and is located on the outer side wall of the positioning frame 3. The frame 14 is rotatably connected to the rotating shaft 13 and is located around the rotating shaft 13, the extension frame 15 is slidably connected to the fixing frame 14, and is located on the inner side wall of the fixing frame 14, and the fixing assembly 16 is arranged on the one side of the fixing frame 14; the fixing assembly 16 includes a positioning pin 17 and a top plug 18, the positioning pin 17 is threadedly connected with the fixing frame 14, and penetrates the fixing frame 14, and the top plug 18 is connected to the fixing frame 14. The positioning pin 17 is rotatably connected, is slidably connected to the fixing frame 14, and is located on the side close to the extension frame 15; the fixing assembly 16 further includes a handle 19, the handle 19 and the positioning pin 17 Fixed connection and on the side away from the top plug 18 .

In this embodiment, when drawing a circle, the drawing tool is fixed on the extension frame 15, and the positioning pin 17 is rotated by the handle 19, so that the positioning pin 17 drives the top plug 18 away from the One side of the extension frame 15 is slid until the top plug 18 is separated from the extension frame 15. At this time, the extension frame 15 can be pulled out from the fixing frame 14, and the length can be adjusted according to the size of the circle. After completion, rotate the handle 19 in the opposite direction, so that the positioning pin 17 pushes the plug 18 to press the extension frame 15 into the fixing frame 14, and finally the rotating shaft 13 can rotate the The fixing frame 14 and the extension frame 15 make the drawing tool on the extension frame 15 draw a circle.

Further, the extension frame 15 includes an extension rod 21 and a fixing head 22 , the extension rod 21 is slidably connected to the fixing frame 14 and is located on the inner side wall of the fixing frame 14 , and the fixing head 22 is connected to the extension rod 22 . The rod 21 is rotatably connected and is located on the side away from the fixing frame 14; the rebar main body 2 further includes a positioning ring 25 and an anti-skid pad 26, the positioning ring 25 is threadedly connected with the rotating shaft 13 and is located on the rotating shaft 13 around, the anti-skid pad 26 is fixedly connected with the positioning ring 25, and is located on the side close to the fixing frame 14; the drive assembly 6 includes a motor 23 and a screw 24, and the motor 23 and the positioning frame are 3 is fixedly connected and located on the inner side wall of the positioning frame 3, one side of the screw 24 is fixedly connected with the output end of the motor 23, and the other side of the screw 24 is rotatably connected with the positioning frame 3, and is located at the In the chute 5 , the slider 7 is threadedly connected to the screw rod 24 and is located around the screw rod 24 .

In this embodiment, the fixing head 22 is used to fix the painting tool, and the extension rod 21 is used to drive the painting tool to slide on the inner side wall of the fixing frame 14. When the steel bar body 2 is not in use, the The extension rod 21 slides into the fixing frame 14, and the extension rod 21 is fixed by the fixing assembly 16, and then the positioning ring 25 is rotated, so that the anti-skid pad 26 on the positioning ring 25 is The fixing frame 14 contacts and clamps the fixing frame 14 on the positioning frame 3 to increase the stability of the positioning frame 3 and the fixing frame 14 during storage and transportation. The motor 23 drives The screw 24 rotates, but the sliding block 7 on the screw 24 drives the gas collecting pipe 10 to slide out from the fixing frame.

What has been disclosed above is only a preferred embodiment of the device for quickly drawing a circle for a three-center arch section according to the present invention. Of course, it cannot limit the scope of rights of the present invention. Those of ordinary skill in the art can understand that all or all of the above embodiments can be realized. Part of the process and the equivalent changes made according to the claims of the present invention still belong to the scope covered by the invention.

Claims (6)

1. A three-center arch section rapid circle drawing device is characterized by comprising a positioning mechanism and a steel bar main body; positioning mechanism includes the locating rack, inserts point, drive assembly, slider and the subassembly of breathing in, the locating rack has gas vent and spout, insert the point with locating rack fixed connection, and be located the locating rack bottom, drive assembly set up in the spout, the slider with drive assembly threaded connection, and with locating rack sliding connection, and be located in the spout, the subassembly of breathing in set up in the slider is close to one side of gas vent, the reinforcing bar main part set up in the locating rack lateral wall.

2. The apparatus of claim 1, wherein the air suction assembly comprises a manifold, a fan and a suction cup, the manifold is fixedly connected to the slider and positioned within the positioning frame, the fan is fixedly connected to the manifold and positioned on a side adjacent to the air outlet, and the suction cup is in communication with the manifold and positioned on a side adjacent to the insertion tip.

3. The device for rapidly drawing a circle on a section of a three-center arch according to claim 1, wherein the main body of the steel bar comprises a rotating shaft, a fixing frame, an extension frame and a fixing component, the rotating shaft is fixedly connected with the positioning frame and is positioned on the outer side wall of the positioning frame, the fixing frame is rotatably connected with the rotating shaft and is positioned around the rotating shaft, the extension frame is slidably connected with the fixing frame and is positioned on the inner side wall of the fixing frame, and the fixing component is arranged on one side of the fixing frame.

4. The device for rapidly describing the circle of a three-centered arch cross section as claimed in claim 3, wherein the fixing component comprises a positioning pin and a top plug, the positioning pin is in threaded connection with the fixing frame and penetrates through the fixing frame, and the top plug is in rotational connection with the positioning pin and is in sliding connection with the fixing frame and is positioned at one side close to the extending frame.

5. The apparatus of claim 4, wherein the fixing assembly further comprises a handle fixedly connected to the positioning pin and located on a side away from the top plug.

6. The apparatus according to claim 1, wherein the positioning mechanism further comprises a dust screen, the dust screen is fixedly connected to the positioning frame and located at the air outlet.

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