Round wood center positioning and marking device

Abstract

The utility model relates to the technical field of building construction, in particular to a round wood center positioning marking device which comprises a first abutting plate and a second abutting plate, and one end of the first abutting plate and one end of the second abutting plate are connected to a base. The track ruler is located on the bisector of the included angle between the first abutting plate and the second abutting plate; an ink tank is arranged on the base, and an ink rope is wound in the ink tank through a force storage rotating shaft; one end of the track ruler is fixed to the outer wall of the ink tank, one end of the ink rope can be led out of the side wall of the ink tank and then straightly erected at the other end of the track ruler, the diameter track can be marked through the ink rope after the diameter is positioned through the two abutting plates and the track ruler, and the circle center can be rapidly marked through the two marking lines with different diameters. Therefore, the circle center can be quickly marked after being positioned.

Description

Technical Field

[0001] The utility model relates to a round timber center positioning marking device, belonging to the technical field of building construction. Background Art

[0002] A large number of round timbers are often used in ancient buildings and antique-style projects for the production and processing of beams, columns and other components. Log center positioning refers to determining the center position of the end face during log processing to facilitate subsequent drilling, cutting and other processing operations. Accurate positioning is the key to ensuring product quality and improving processing efficiency. At present, the traditional method of finding the center position of the circle by manual measurement is mostly used, which is not accurate enough. The commonly used log tenon center drilling locator can help quickly and accurately find the center of the circle and perform precise drilling, but the applicable size of this equipment is limited, and it is difficult to be competent for the center positioning of large wood.

[0003] In addition, there are circle center positioning tools such as the Chinese patent CN202709916U, which are more convenient to a certain extent than traditional manual measurement and are also suitable for locating the center of round timber ends of different sizes. However, during the use of the device, a marking pen or a carving tool is required to carve or draw auxiliary lines. The device itself cannot achieve quick marking after locating the center of the circle. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides a round timber center positioning marking device.

[0005] The technical solution of the utility model is as follows:

[0006] A round timber center positioning marking device comprises a first abutment plate and a second abutment plate, one end of the first abutment plate and the second abutment plate are respectively connected to a base; further comprising a track ruler, the track ruler is located on the bisector of the angle between the first abutment plate and the second abutment plate; an ink tank is arranged on the base, an ink rope is arranged in the ink tank through a power storage shaft; one end of the track ruler is fixed to the outer wall of the ink tank, and one end of the ink rope can be led out from the side wall of the ink tank and stretched and erected on the other end of the track ruler.

[0007] As a preferred embodiment, the track ruler is a U-shaped groove rail structure with an opening facing upward, the ink rope is led out and straightened and is located in the inner cavity of the U-shaped groove rail, the bottom of the track ruler is provided with an ink spring port along the length direction, and the top surface of the track ruler is provided with a lifting port.

[0008] As a preferred solution, a stop boss is provided on the upper end surface of the cantilever end of the track ruler, and a stop bolt is provided at one end of the ink rope, and the stop bolt is clamped under the stop boss to limit the retraction of the ink rope.

[0009] As a preferred embodiment, a clockwork box is provided on the top of the ink tank, the upper end of the power storage shaft extends into the clockwork box, a clockwork spring is provided in the clockwork box, and the two ends of the clockwork spring are respectively fixed to the power storage shaft and the inner wall of the clockwork box.

[0010] As a preferred solution, the ink tank is filled with ink-reservoir cotton, the ink-reservoir cotton is soaked in ink, and an ink filling nozzle is arranged on the top of the ink tank.

[0011] As a preferred solution, hinges are respectively provided on both sides of the base, and the first abutment plate and the second abutment plate are respectively hinged to the base through the hinges.

[0012] The utility model has the following beneficial effects:

[0013] The utility model discloses a round timber center positioning marking device, which comprises two abutment plates connected at a certain angle and a track ruler located on the bisector of the angle between the two abutment plates, and a retractable ink rope is arranged on the track ruler. After the diameter is positioned by the two abutment plates and the track ruler, the ink rope can be used to mark the diameter track, and the center of the circle can be quickly marked by using two marking lines with different diameters, so that the center of the circle can be positioned and quickly marked. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model in a top view in an unfolded state;

[0015] Figure 2 It is a schematic diagram of the structure of the utility model in a top view in a closed state;

[0016] Figure 3 This is a front perspective structural diagram of the utility model;

[0017] Figure 4 for Figure 3 Schematic diagram of the local structure;

[0018] Figure 5 This is a schematic diagram of the working principle of the ink rope of the utility model;

[0019] Figure 6-8 This is a schematic diagram of the marking work of the utility model. DETAILED DESCRIPTION

[0020] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] See also Figure 1-2A round timber center positioning marking device includes a first abutment plate 10 and a second abutment plate 20. One end of the first abutment plate 10 and the second abutment plate 20 are respectively connected to a base 30. In order to facilitate the storage and carrying of the device, hinges 31 are respectively provided on both sides of the base 30. The first abutment plate 10 and the second abutment plate 20 are respectively hinged to the base 30 through the hinges 31. In order to limit the opening angle after unfolding, the stability of the work is measured, such as Figure 1-2 As shown, in this embodiment, the connecting sections of the first abutment plate 10 and the second abutment plate 20 are both 45° inclined surfaces, the base 30 is a square block, and the first abutment plate 10 and the second abutment plate 20 are connected to adjacent two side edges of the base 30, so that the included angle between the first abutment plate 10 and the second abutment plate 20 is 90° after being unfolded, and the inclined surfaces of the connecting sections of the first abutment plate 10 and the second abutment plate 20 abut against the side surfaces of the base 30, naturally realizing a fixed angle limitation.

[0022] like Figure 3-5 As shown, an ink tank 50 is arranged on the base 30, and a power storage shaft 51 is rotatably installed in the ink tank 50, and an ink rope 52 is wound on the power storage shaft 51. A small hole is opened on the side wall of the ink tank 50, and the ink rope 52 can pass through the small hole to lead out of the ink tank 50, and a stop bolt 53 is arranged at one end of the ink rope 52.

[0023] In order to supply ink to the ink rope 52, the ink tank 50 is filled with ink-retaining cotton 54, which is soaked in ink and kept wet to prevent excessive ink from seeping out from the small holes on the side wall of the ink tank 50. An ink filling nozzle 55 is provided on the top of the ink tank 50 for adding ink.

[0024] In order to make the ink rope 52 have automatic retraction elasticity, a clockwork box 60 is arranged on the top of the ink tank 50, and the upper end of the force storage shaft 51 extends into the clockwork box 60. A clockwork spring 61 is arranged in the clockwork box 60, and the two ends of the clockwork spring 61 are respectively fixed on the force storage shaft 51 and the inner wall of the clockwork box 60. When the ink rope 52 is pulled, the force storage shaft 51 drives the clockwork spring 61 to reel and store force. After the ink rope 52 is released, it automatically reels by relying on the restoring elastic force of the clockwork spring 61.

[0025] like Figure 3-5 As shown, the device also includes a track ruler 40, which is located on the bisector of the angle between the first abutment plate 10 and the second abutment plate 20. Therefore, when the first abutment plate 10 and the second abutment plate 20 abut against the circumferential outer wall of the log, the centerline position of the track ruler 40 is located on the circular diameter of the end face of the log; one end of the track ruler 40 is fixed to the outer wall of the ink tank 50, and the track ruler 40 is a U-shaped groove track structure with an opening facing upward. One end of the ink rope 52 can be led out from the side wall of the ink tank 50 and stretched and mounted on the other end of the track ruler 40. After the ink rope 52 is led out and stretched, it is located in the inner cavity of the U-shaped groove track. The bottom of the track ruler 40 is provided with an ink spring port 41 along the length direction, as shown in FIG. Figure 5From the state a to the state b shown, when the ink rope 2 is lifted and released, it can rebound through the ink spring port 41 and hit the end surface of the log, thereby forming a marking line; a lifting port 42 is provided on the top surface of the track ruler 40, so as to facilitate pulling the ink rope 52 through the lifting port 42; a stop boss 43 is provided on the upper end surface of the cantilever end of the track ruler 40, and the stop bolt 53 is stuck under the stop boss 43 to limit the retraction of the ink rope 52.

[0026] The working principle of this utility model:

[0027] like Figure 6-8 As shown, when working, the ink rope 52 is first pulled out of the ink tank 50 and stretched straight and mounted on the track ruler 40. After the first abutment plate 10 and the second abutment plate 20 are opened to a certain angle, they are respectively abutted against the circumferential outer wall of the measured log c. At this time, the centerline position of the track ruler 40 is on the circular diameter of the end face of the log. The ink rope 52 is pulled upward to a certain height to store force, and then the ink rope 52 is released. The ink rope 52 passes through the ink spring port 41 of the track ruler 40 and hits the end face of the log c to form a first diameter marking line x; then, the rotating device switches an angle, and the above operation is repeated to form a second diameter marking line y. The diameter marking line x and the diameter marking line y are intersecting straight lines, and the intersection point is the center of the end face of the log c, that is, the center of the log.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A round timber center positioning marking device, comprising a first abutment plate (10) and a second abutment plate (20), wherein one end of the first abutment plate (10) and the second abutment plate (20) are respectively connected to a base (30); further comprising a track ruler (40), wherein the track ruler (40) is located on the bisector of the angle between the first abutment plate (10) and the second abutment plate (20); characterized in that: An ink tank (50) is arranged on the base (30), and an ink rope (52) is arranged in the ink tank (50) to be rolled up by a power storage shaft (51); one end of the track ruler (40) is fixed to the outer wall of the ink tank (50), and one end of the ink rope (52) can be drawn out from the side wall of the ink tank (50) and then stretched and mounted on the other end of the track ruler (40).

2. A round timber center positioning marking device as claimed in claim 1, characterized in that: The track ruler (40) is a U-shaped groove rail structure with an opening facing upwards. The ink rope (52) is led out and stretched to be located in the inner cavity of the U-shaped groove rail. An ink spring port (41) is provided at the bottom of the track ruler (40) along the length direction, and a lifting port (42) is provided on the top surface of the track ruler (40).

3. A round timber center positioning marking device as claimed in claim 2, characterized in that: A stop-retraction boss (43) is provided on the upper end surface of the cantilever end of the track ruler (40), and a stop-retraction bolt (53) is provided at one end of the ink rope (52), and the stop-retraction bolt (53) is clamped under the stop-retraction boss (43) to limit the retraction of the ink rope (52).

4. A round timber center positioning marking device as claimed in claim 1, characterized in that: A clockwork box (60) is arranged on the top of the ink tank (50), the upper end of the power storage shaft (51) extends into the clockwork box (60), a clockwork spring (61) is arranged in the clockwork box (60), and the two ends of the clockwork spring (61) are respectively fixed to the power storage shaft (51) and the inner wall of the clockwork box (60).

5. A round timber center positioning marking device as claimed in claim 1, characterized in that: The ink tank (50) is filled with ink-reservoir cotton (54), and the ink-reservoir cotton (54) is soaked in ink. The top of the ink tank (50) is provided with an ink filling nozzle (55).

6. A round timber center positioning marking device as claimed in claim 1, characterized in that: Hinges (31) are respectively provided on both sides of the base (30), and the first abutment plate (10) and the second abutment plate (20) are respectively hingedly connected to the base (30) via the hinges (31).

Images