Arc auxiliary lofting device

Abstract

The utility model relates to the technical field of arc lofting, and discloses an auxiliary arc lofting device which is characterized in that fixing grooves are formed in the front surfaces of a first clamping piece and a second clamping piece, scale openings are formed in the fixing grooves, and a connecting block is connected between the first clamping piece and the second clamping piece; connecting rods are arranged on the front surface and the rear surface of the connecting block, a fixing rod is arranged at the position, between the first clamping piece and the second clamping piece, of the upper surface of the connecting block, an adjusting rod is arranged at the upper end of the fixing rod, an adjusting plate is connected to the upper end of the adjusting rod, and a standing needle is arranged in the middle of the lower surface of the connecting block. Through the work of the first electric telescopic rod in the connecting block, the connecting rod can move in the connecting block, and the distance between the first clamping piece and the second clamping piece can be adjusted during movement, so that measuring scales with different thicknesses can penetrate through the arc lofting device to carry out arc lofting work, and the arc lofting device is simple in structure, convenient to operate and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of circular arc lofting, in particular to a circular arc auxiliary lofting device. Background Art

[0002] Arc lofting is often involved in building construction. The accuracy and success of arc lofting sometimes plays a decisive role in the construction quality. Auxiliary lofting equipment is generally required during arc lofting. Auxiliary lofting equipment can improve the accuracy and efficiency of arc lofting, and reduce human errors and lofting time.

[0003] A Chinese patent discloses an arc auxiliary lofting part and a large-radius arc lofting device with a measuring ruler (authorization announcement number CN211974401U). The patented arc auxiliary lofting part includes a clip, a needle and a fastener. The clip is composed of two plates connected at the bottom. The two plates are parallel to each other, and there is a gap between the two plates to allow the tape to pass through; at least one of the two plates is provided with a scale hole, and the scale hole has a positioning angle; the needle is fixed to the bottom of the clip, and its bottom end has a fixed pin; the fastener is vertically connected to the clip, and the plate is provided with an adjustment hole, and the fastener clamps the tape between the two plates through the adjustment hole; the scale hole is located in the middle of the clip, and the needle is located in the middle of the bottom of the clip. The large-radius arc lofting device with a measuring ruler includes the arc auxiliary lofting part and the measuring ruler. The utility model has the advantages of easy fixing of the center of the circle, high arc lofting accuracy, easy carrying and strong applicability.

[0004] However, there are still some shortcomings in this patent. Although this patent can realize the arc auxiliary lofting work, it can be seen from the drawings of this patent that the size of the auxiliary lofting part of this patent is fixed and cannot be adjusted, which makes it unable to meet the positioning of measuring rulers of different sizes, affecting the subsequent arc lofting work. Therefore, those skilled in the art provide an arc auxiliary lofting device to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to provide an arc auxiliary lofting device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A circular arc auxiliary lofting device comprises a first clamp and a second clamp arranged behind the first clamp, the front surfaces of the first clamp and the second clamp are both provided with a fixing groove, the interior of the fixing groove is provided with a scale opening, a connecting block is connected between the first clamp and the second clamp, the front and rear surfaces of the connecting block are both provided with connecting rods, a fixing rod is provided between the first clamp and the second clamp on the upper surface of the connecting block, an adjusting rod is provided at the upper end of the fixing rod, an adjusting plate is connected to the upper end of the adjusting rod, and a standing needle is provided at the middle position of the lower surface of the connecting block.

[0008] As a further solution of the utility model: two fixing rods are symmetrically arranged on the upper surface of the connecting block, and the adjusting rod is slidably installed inside the fixing rod.

[0009] As a further solution of the utility model: the height of the fixed rod is the same as that of the adjusting rod, and a second electric telescopic rod is further arranged inside the fixed rod, and the telescopic end of the second electric telescopic rod is connected to the lower end of the adjusting rod.

[0010] As a further solution of the utility model: the connecting rod is cylindrical, and four connecting rods are symmetrically arranged on both sides of the connecting block.

[0011] As a further solution of the utility model: a movable groove is further provided inside the connecting block, a partition plate is provided at the middle position inside the movable groove, and the connecting rod is slidably provided inside the movable groove.

[0012] As a further solution of the utility model: first electric telescopic rods are symmetrically arranged on both sides of the partition plate, and the telescopic end of the first electric telescopic rod is connected to one end of the connecting rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. An arc auxiliary layout device, through the operation of the first electric telescopic rod inside the connecting block, the connecting rod will move inside the connecting block, and the distance between the first clamping piece and the second clamping piece will be adjusted during the movement, so that measuring rulers of different thicknesses can pass through to perform arc layout work. The device has a simple structure, convenient operation, and high practicality, so that measuring rulers of different thicknesses can be used.

[0015] 2. An arc auxiliary layout device, through the operation of the second electric telescopic rod inside the fixed rod, the adjustment rod will move inside the fixed rod, and then the height of the adjustment plate can be adjusted, so that measuring rulers of different heights can be matched with the scale opening when passing through the first clamp and the second clamp, thereby facilitating the arc layout work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an arc auxiliary lofting device;

[0017] Figure 2 It is a structural schematic diagram of a connecting block in an arc auxiliary lofting device;

[0018] Figure 3 It is a structural schematic diagram of a partition plate in an arc auxiliary lofting device;

[0019] Figure 4 The figure is a schematic diagram of the structure of a fixed rod in an arc auxiliary lofting device.

[0020] In the figure: 1, first clamp; 11, fixing groove; 12, scale mouth; 2, second clamp; 3, connecting block; 31, connecting rod; 32, partition plate; 33, first electric telescopic rod; 4, adjustment plate; 41, adjustment rod; 42, fixing rod; 43, second electric telescopic rod; 5, standing needle. DETAILED DESCRIPTION

[0021] See also Figures 1 to 4 In an embodiment of the utility model, an arc auxiliary lofting device comprises a first clamping piece 1 and a second clamping piece 2 arranged behind the first clamping piece 1, the front surfaces of the first clamping piece 1 and the second clamping piece 2 are both provided with a fixing groove 11, and a scale opening 12 is arranged inside the fixing groove 11, a connecting block 3 is connected between the first clamping piece 1 and the second clamping piece 2, and a connecting rod 31 is arranged on the front surface and the rear surface of the connecting block 3, and a fixing rod 42 is arranged between the first clamping piece 1 and the second clamping piece 2 on the upper surface of the connecting block 3, and an adjusting rod 41 is arranged on the upper end of the fixing rod 42, and an adjusting plate 4 is connected to the upper end of the adjusting rod 41, and a standing needle 5 is arranged at the middle position of the lower surface of the connecting block 3, and the setting utilizes the movement of the connecting rod 31, so that the distance between the first clamping piece 1 and the second clamping piece 2 can be adjusted, so that measuring rulers of different thicknesses can be placed in order to facilitate the arc lofting work, and at the same time, the movement of the adjusting plate 4 is utilized to control the position of the adjusting plate 4 and the scale opening 12, so that measuring rulers of different sizes can pass through to perform arc lofting and arc drawing work.

[0022] exist Figure 2 and Figure 4 Middle: Two fixed rods 42 are symmetrically arranged on the upper surface of the connecting block 3, and the adjusting rod 41 is slidably installed inside the fixed rod 42. The height of the fixed rod 42 is the same as that of the adjusting rod 41, and a second electric telescopic rod 43 is also arranged inside the fixed rod 42. The telescopic end of the second electric telescopic rod 43 is connected to the lower end of the adjusting rod 41. This setting utilizes the operation of the second electric telescopic rod 43 to move the adjusting rod 41 inside the fixed rod 42, thereby changing the position of the adjusting plate 4 to meet the requirements of measuring rulers of different heights passing through the corresponding scale opening 12 for subsequent arc lofting work.

[0023] exist Figure 2 and Figure 3 Middle: The connecting rod 31 is cylindrical, and four connecting rods 31 are symmetrically arranged on both sides of the connecting block 3. A moving groove is also opened inside the connecting block 3, and a partition plate 32 is arranged at the middle position inside the moving groove. The connecting rod 31 is slidably arranged inside the moving groove, and first electric telescopic rods 33 are symmetrically arranged on both sides of the partition plate 32. The telescopic end of the first electric telescopic rod 33 is connected to one end of the connecting rod 31. This setting utilizes the operation of the first electric telescopic rod 33 to make the connecting rod 31 move inside the connecting block 3, and then automatically adjust the distance between the first clamp 1 and the second clamp 2, so that measuring rulers of different sizes can pass through to perform subsequent arc lofting work.

[0024] The working principle of the utility model is as follows: when the arc auxiliary lofting device of the utility model is in use, the distance between the first clamping piece 1 and the second clamping piece 2 is first adjusted according to the size of the measuring ruler. During the adjustment, the first electric telescopic rod 33 inside the connecting block 3 is started, so that the connecting rod 31 moves inside the connecting block 3, and then the distance between the first clamping piece 1 and the second clamping piece 2 connected by the connecting rod 31 can be adjusted to meet the measurement rulers of different thicknesses passing between the first clamping piece 1 and the second clamping piece 2. After the adjustment, the second electric telescopic rod 43 inside the fixing rod 42 is started, so that the adjusting rod 41 moves inside the fixing rod 42, and then the adjusting plate 4 moves to control the position of the adjusting plate 4. In this way, when the measuring rulers of different heights pass between the first clamping piece 1 and the second clamping piece 2, the measuring ruler and the scale port 12 can accurately correspond to each other, so as to facilitate the drawing of arcs with a brush to perform arc lofting work. The operation is simple and convenient, and the practicability is good.

[0025] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An arc auxiliary lofting device, comprising a first clamping piece (1) and a second clamping piece (2) arranged behind the first clamping piece (1), characterized in that: The front surfaces of the first clamp (1) and the second clamp (2) are both provided with a fixing groove (11), and a scale opening (12) is provided inside the fixing groove (11). A connecting block (3) is connected between the first clamp (1) and the second clamp (2), and a connecting rod (31) is provided on the front and rear surfaces of the connecting block (3). A fixing rod (42) is provided on the upper surface of the connecting block (3) between the first clamp (1) and the second clamp (2), and an adjusting rod (41) is provided at the upper end of the fixing rod (42), and an adjusting plate (4) is connected to the upper end of the adjusting rod (41), and a standing needle (5) is provided at the middle position of the lower surface of the connecting block (3).

2. The arc auxiliary lofting device according to claim 1, characterized in that: Two fixing rods (42) are symmetrically arranged on the upper surface of the connecting block (3), and the adjusting rod (41) is slidably installed inside the fixing rod (42).

3. The arc auxiliary lofting device according to claim 1, characterized in that: The height of the fixed rod (42) is the same as that of the adjusting rod (41), and a second electric telescopic rod (43) is also arranged inside the fixed rod (42), and the telescopic end of the second electric telescopic rod (43) is connected to the lower end of the adjusting rod (41).

4. The arc auxiliary lofting device according to claim 1, characterized in that: The connecting rod (31) is cylindrical, and four connecting rods (31) are symmetrically arranged on both sides of the connecting block (3).

5. The arc auxiliary lofting device according to claim 1, characterized in that: A movable groove is also provided inside the connecting block (3), a partition plate (32) is provided at the middle position inside the movable groove, and the connecting rod (31) is slidably arranged inside the movable groove.

6. The arc auxiliary lofting device according to claim 5, characterized in that: First electric telescopic rods (33) are symmetrically arranged on both sides of the partition plate (32), and the telescopic end of the first electric telescopic rod (33) is connected to one end of the connecting rod (31).

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