Arc positioning tool manufactured by using bendable circular tube

Abstract

The utility model provides an arc positioning tool made of bendable round tubes, which comprises a bendable round tube, the round tube is detachably connected with another round tube through a connecting end, and a plurality of round tubes are connected to form a positioning tube extending left and right; the positioning pipe is bent into an arc shape, the two ends of the positioning pipe are bent till the left end face and the right end face are flush, and a chord line is fixedly connected between the left end and the right end of the positioning pipe. According to the arc positioning tool manufactured through the bendable round pipe, the round pipe can be quickly spliced into a positioning pipe, reinforcing is conducted through the fixing piece, a constructor conducts radian reference on the bent positioning pipe, and therefore the positioning pipe can be rapidly spliced into the arc positioning tool, the construction efficiency is improved, and the construction cost is reduced. And meanwhile, the circular tube is not influenced by weather and is not easy to damage, so that the circular arc positioning is more accurate.

Description

Technical Field

[0001] The utility model relates to the field of garden construction, in particular to an arc positioning tool made of a bendable round tube. Background Art

[0002] Garden construction is a project to build landscape gardens and green spaces. During the garden construction process, circular floor tiles are laid for aesthetic reasons. When laying circular floor tiles, the arc needs to be controlled, so the arc needs to be positioned.

[0003] In the prior art, arc positioning is generally performed by spreading white lime lines. After spreading the lines, construction workers install the arc of the spread lines and lay floor tiles. However, the white lime spreading lines are easily affected by weather, and the marks may disappear or become blurred under special weather conditions. At the same time, workers walking back and forth may also damage the white lines, resulting in inaccurate markings. In addition, the white lines may be less recognizable when the ground is lighter in color or at night. Therefore, errors may easily occur in the white lime spreading lines, resulting in inaccurate arc positioning. Utility Model Content

[0004] In order to solve the problem of easy error in white lime spreading in the background technology, the utility model proposes an arc positioning tool made of a bendable round tube.

[0005] The technical solution of the utility model is: comprising a bendable round tube,

[0006] The circular tube is detachably connected to another circular tube through a connecting end, and multiple circular tubes are connected to form a positioning tube extending left and right;

[0007] The positioning tube is bent into an arc shape, and both ends of the positioning tube are bent until the left and right end surfaces are flush with each other, and a string is fixedly connected between the left and right ends of the positioning tube;

[0008] A fixing piece is provided on the circular tube, and the fixing piece can be extended and retracted up and down. The lower end of the fixing piece is inserted into the ground and fixedly connected to the ground.

[0009] Preferably, the fixing member includes a fixing sleeve, and a mounting hole is opened on the circular tube, the mounting hole extends vertically, and the mounting hole passes through the outer surface of the circular tube, and the fixing sleeve is fixedly inserted in the mounting hole;

[0010] A fixing nail is provided in the fixing sleeve, the middle end of the fixing nail is provided with a thread, the interior of the fixing sleeve is provided with a thread structure adapted to the fixing nail, the fixing nail is threadedly connected in the fixing sleeve, and the lower end of the fixing nail is inserted into the ground.

[0011] Preferably, the upper and lower surfaces of the fixed sleeve are fixedly connected to the limiting ring, the diameter of the limiting ring is larger than the diameter of the mounting hole, the inner wall diameter of the limiting ring is equal to the inner wall diameter of the fixed sleeve, and the outer surface of the limiting ring is in contact with the outer surface of the circular tube.

[0012] Preferably, the upper end of the fixing nail is fixedly connected with a knob, and the knob is located outside the fixing sleeve.

[0013] Preferably, the connecting end includes a tightening slit, and a plurality of tightening slits are opened on the right end of the circular tube, the tightening slits extend in the left-right direction, the tightening slits pass through the circular tube, and the tightening slits are all right-opening structures;

[0014] The right end of the round tube is plugged into the left end of the adjacent round tube. A fastening sleeve is sleeved on the right end of the round tube to tighten the tightening seam inward.

[0015] Preferably, the fastening sleeve is provided with a fastening opening which is transparent on the left and right sides, and the fastening sleeve is mounted on the round tube through the fastening opening;

[0016] The fastening opening is a conical structure that is narrow on the left and wide on the right.

[0017] Preferably, the outer surface fixing sleeve of the fastening sleeve is provided with an annular friction pad.

[0018] The advantages of this utility model are: multiple round tubes can be connected into a positioning tube, and then the bending curvature of the positioning tube can be guaranteed by a fixed-length string, and finally the bend can be reinforced by a fixing piece, so that fast splicing can be completed. The round tube is less affected by the weather and is not easily damaged. It is also more conspicuous at night, so that the arc positioning can be guaranteed to be more accurate, and the arc positioning tool made of the flexible round tube can be recycled after use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of the main structure of Example 1;

[0021] Figure 2 for Figure 1 Schematic diagram of the fixing structure;

[0022] Figure 3 for Figure 1 Schematic diagram of the circular tube structure;

[0023] Figure 4 for Figure 1 Schematic diagram of the fastening sleeve structure;

[0024] Figure 5 for Figure 1 A is an enlarged structural diagram of FIG.

[0025] In the figure, 1 is a round tube, 2 is a string, 3 is a fixing part, 301 is a fixing sleeve, 302 is a limiting ring, 303 is a fixing nail, 304 is a knob, 4 is a connecting end, 401 is a tightening seam, 5 is a fastening sleeve, and 6 is a friction pad. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example 1: This example aims to provide an arc positioning tool made of a bendable circular tube.

[0028] Figures 1 to 5 As shown, it comprises a bendable round tube 1.

[0029] In this embodiment, a PVC tube can be selected for the round tube 1. The round tube 1 is detachably connected to another round tube 1 through the connecting end 4. Multiple round tubes 1 are connected to form a positioning tube extending left and right. The connecting end 4 includes a tightening seam 401. Multiple tightening seams 401 are opened on the right end of the round tube 1. The tightening seams 401 extend in the left and right directions. The tightening seams 401 pass through the round tube 1, and the tightening seams 401 are all right-opening structures. The right end of the round tube 1 is plugged into the left end of the adjacent round tube 1. A fastening sleeve 5 is provided on the right end of the round tube 1. The fastening sleeve 5 is used to converge the tightening seam 401 inward. Another round tube 1 is inserted into the connecting end 4 of the round tube 1, and the fastening sleeve 5 is pulled to move so that the inner wall of the fastening sleeve 5 contacts the connecting end 4, so that the tightening seam 401 converges inward, and the connection between the connecting end 4 and the round tube 1 is tightened by the fastening sleeve 5.

[0030] A fastening opening that is transparent on the left and right is opened in the fastening sleeve 5. The fastening sleeve 5 is set on the round tube 1 through the fastening opening. The fastening opening is a conical structure that is narrow on the left and wide on the right. The outer surface of the fastening sleeve 5 is fixed with an annular friction pad 6. The friction pad 6 can be made of rubber in this embodiment.

[0031] A fixing part 3 is provided on the circular tube 1, which can be extended and retracted up and down. The lower end of the fixing part 3 is inserted into the ground and fixedly connected to the ground. The fixing part 3 includes a fixing sleeve 301. A mounting hole is opened on the circular tube 1, and the mounting hole extends vertically. The mounting hole passes through the outer surface of the circular tube 1. A fixing sleeve 301 is fixedly inserted in the mounting hole. A fixing nail 303 is provided in the fixing sleeve 301. The middle end of the fixing nail 303 is provided with a thread. The inside of the fixing sleeve 301 is provided with a thread structure adapted to the fixing nail 303. The fixing nail 303 is threadedly connected to the fixing sleeve 301, and the lower end of the fixing nail 303 is inserted into the ground. The upper end of the fixing nail 303 is fixedly connected to a knob 304, and the knob 304 is located outside the fixing sleeve 301.

[0032] The upper and lower surfaces of the fixed sleeve 301 are fixedly connected to the limiting ring 302. The diameter of the limiting ring 302 is larger than the diameter of the mounting hole. The inner wall diameter of the limiting ring 302 is equal to the inner wall diameter of the fixed sleeve 301, and the outer surface of the limiting ring 302 is in contact with the outer surface of the circular tube.

[0033] The positioning tube is bent into an arc shape, and both ends of the positioning tube are bent until the left and right end faces are flush. A chord line 2 is fixedly connected between the left and right ends of the positioning tube. The length of the positioning tube represents the arc length. The chord length is determined by the arc length and the radius of the designed circle. The chord line 2 of equal length is selected according to the chord length.

[0034] Working principle: a circular tube 1 is inserted into the connecting end 4 of another circular tube 1, the tightening seam 401 on the connecting end 4 of the other circular tube 1 opens outward, and then the fastening sleeve 5 is moved toward the connecting end 4, and the tightening seam 401 is tightened through the fastening opening on the fastening sleeve 5, so that the inner wall of the tightening seam 401 is tightly attached to the outer surface of the circular tube 1, and then the fastening sleeve 5 presses the connecting end 4 of the other circular tube 1 onto the circular tube 1, thereby bringing the two circular tubes 1 together. Multiple circular tubes 1 can be connected together through the above method.

[0035] Then the positioning tube is bent into an arc shape, and then the two ends of the string 2 are respectively tied together with the left and right ends of the positioning tube, so that the positioning tube is bent to a set arc by the string 2 of a set length.

[0036] Then place the positioning tube on the ground, and then turn the knob 304. The rotation of the knob 304 drives the fixing nail 303, and the fixing nail 303 rotates and moves downward until the fixing nail 303 is inserted into the ground, so that the positioning tube forms a bending arc control point at this point. After the fixing nails 303 on multiple fixing parts 3 are inserted into the ground, multiple control points are formed, and the bending of the positioning tube is reinforced through multiple control points.

[0037] After the fixation is completed, the construction workers refer to the positioning tube to lay the tiles. After the tiling is completed, the knob 304 is rotated in the opposite direction to drive the fixing nail 303 to move upward, and then the string is cut to reset the positioning tube. Finally, the fastening sleeve 5 is pulled to open the tightening seam 401 of the round tube 1 outward, and then the round tube 1 is pulled out from the connecting end 4.

[0038] In this way, multiple circular tubes 1 can be quickly spliced into a positioning tube, and then the positioning tube can be bent. By tying a fixed-length string 2 between the two ends of the positioning tube, the positioning tube can be bent into a corresponding arc. The bent positioning tube can be installed on the ground through the fixing part 3. After multiple positioning tubes are installed and spliced together, an arc positioning tool is formed. Construction workers use the arc positioning tool as a reference to lay tiles, thereby ensuring that the arc of the tiles is the designed arc, making the arc positioning more accurate. At the same time, the circular tube 1 is not affected by weather and is not easily damaged, making the arc positioning more precise.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is determined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An arc positioning tool made of a bendable round tube, characterized by: comprising a bendable circular tube (1), The circular tube (1) is detachably connected to another circular tube (1) via a connecting end (4), and a plurality of circular tubes (1) are connected to form a positioning tube extending left and right; The positioning tube is bent into an arc shape, and both ends of the positioning tube are bent until the end surfaces of the left and right ends are flush with each other, and a string (2) is fixedly connected between the left and right ends of the positioning tube; A fixing member (3) is provided on the circular tube (1), and the fixing member (3) can be extended and retracted up and down. The lower end of the fixing member (3) is inserted into the ground and fixedly connected to the ground.

2. The arc positioning tool made of a bendable round tube according to claim 1, characterized in that: The fixing member (3) includes a fixing sleeve (301), and a mounting hole is provided on the circular tube (1). The mounting hole extends vertically and passes through the outer surface of the circular tube (1), and the fixing sleeve (301) is fixedly inserted into the mounting hole. A fixing nail (303) is provided in the fixing sleeve (301), a thread is provided at the middle end of the fixing nail (303), a thread structure adapted to the fixing nail (303) is provided inside the fixing sleeve (301), the fixing nail (303) is threadedly connected in the fixing sleeve (301), and the lower end of the fixing nail (303) is inserted into the ground.

3. The arc positioning tool made of a bendable round tube according to claim 2, characterized in that: The upper and lower surfaces of the fixed sleeve (301) are fixedly connected to the limiting ring (302), the diameter of the limiting ring (302) is larger than the diameter of the mounting hole, the inner wall diameter of the limiting ring (302) is equal to the inner wall diameter of the fixed sleeve (301), and the outer surface of the limiting ring (302) is in contact with the outer surface of the circular tube.

4. The arc positioning tool made of a bendable round tube according to claim 2, characterized in that: The upper end of the fixing nail (303) is fixedly connected to a knob (304), and the knob (304) is located outside the fixing sleeve (301).

5. The arc positioning tool made of a bendable round tube according to claim 1, characterized in that: The connecting end (4) includes a tightening slit (401), and a plurality of tightening slits (401) are provided on the right end of the circular tube (1). The tightening slits (401) extend in the left-right direction, penetrate the circular tube (1), and all the tightening slits (401) are right-opening structures. The right end of the circular tube (1) is plugged into the left end of the adjacent circular tube (1). A fastening sleeve (5) is sleeved on the right end of the circular tube (1). The fastening sleeve (5) is used to tighten the tightening seam (401) inward.

6. The arc positioning tool made of a bendable round tube according to claim 5, characterized in that: The fastening sleeve (5) is provided with fastening openings which are transparent on the left and right sides, and the fastening sleeve (5) is mounted on the round tube (1) through the fastening openings; The fastening opening is a conical structure that is narrow on the left and wide on the right.

7. The arc positioning tool made of a bendable round tube according to claim 6, characterized in that: The outer surface fixing sleeve of the fastening sleeve (5) is provided with an annular friction pad (6).

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