Foldable guide ruler

Abstract

The invention belongs to the technical field of measuring tools, and relates to a foldable guide ruler. The device comprises a supporting strip and a ruler, a fixing base is arranged at the bottom of the ruler, a hinge structure used for adjusting rotation of the ruler is arranged between the fixing base and the supporting strip, and a fine adjustment containing groove is formed in the fixing base. The supporting strip and the ruler are connected through the hinge structure, folding of the guide ruler can be achieved, storage and carrying are convenient, space is effectively saved, the supporting face is lengthened through the detachable anti-friction supporting structure, the problem of size consistency after end point cutting is effectively solved, the operation precision is remarkably improved, the detachable anti-friction supporting structure adopts the idler wheel design, and the working efficiency is improved. By means of the structure, friction between the supporting strips and the working face is greatly reduced, operation is smoother, the labor intensity of operators is reduced, carpenters can conveniently and accurately control the needed size, manual measurement errors are reduced, and the flatness and consistency of carpenter products are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of measuring tools and relates to a foldable guide ruler. Background Art

[0002] In work scenarios such as cutting and drawing, the guide ruler is an important auxiliary tool, and its accuracy and ease of operation directly affect the quality and efficiency of the work. Existing guide rulers have many shortcomings. Some guide rulers have fixed structures and cannot be folded and stored. They take up a large space and are inconvenient to carry and store. Moreover, during use, the friction between the guide ruler and the working surface is large, which not only causes unsmooth operation, but also may affect the accuracy of cutting or drawing. In addition, it is difficult to fine-tune the angle of the existing guide ruler, and it is difficult to meet the diverse needs under different working conditions. At the end of the cutting operation, due to the design defects of the guide ruler, the problem of poor dimensional consistency after cutting often occurs, which brings great trouble to actual production, increases production costs, and reduces production efficiency. Therefore, there is an urgent need to design a foldable guide ruler that can overcome the above defects.

[0003] In order to overcome the shortcomings of the existing technology, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses an adjustable base plate for a woodworking sawing machine [application number: 201810643714.2], which includes a reference plate, two opposing scales are provided on the reference plate, the outer ends of the scales are semicircular and are hinged to the upper end surface of the reference plate through a hinge shaft, and the scales are screwed with positioning bolts, and the lower ends of the positioning bolts are inserted into the reference plate; a dovetail-shaped groove rail is formed on the upper end surface of the scale, and a clamping seat is abutted on the side wall of the scale. A plurality of first locking bolts are screwed on the lower end surface of the clamping seat, and the ends of the first locking bolts are hinged to the clamping plate, which is inserted into the clamping seat; a guide seat is formed on the upper end surface of the clamping seat, and a slot is formed on the lower end surface of the guide seat opposite to the groove rail. The groove rail is inserted into the slot of the guide seat, and a plurality of second locking bolts are screwed on the guide seat on the upper side of the groove rail, and the ends of the second locking bolts are pressed against the upper end surface of the groove rail. However, this solution still has the defects of being too short in support surface, failing to provide sufficient support surface, and being not smooth during use. Summary of the Invention

[0004] The object of the present invention is to provide a foldable guide ruler in view of the above problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A foldable guide ruler comprises a support bar and a ruler, a fixed seat is provided at the bottom of the ruler, a hinge structure for adjusting the rotation of the ruler is provided between the fixed seat and the support bar, a fine-tuning storage groove is provided in the fixed seat, one end of the hinge structure is rotatably connected to the support bar, and the other end extends into the fine-tuning storage groove and slidably cooperates with the fine-tuning storage groove, and a detachable anti-friction support structure is installed on the support bar for reducing the front friction when the support bar abuts.

[0007] In the above-mentioned foldable guide ruler, the detachable anti-friction support structure includes a guide rail mounted on the support bar, a mounting groove extending left and right is provided in the guide rail, and a plurality of rotatable rollers are mounted in the mounting groove.

[0008] In the above-mentioned foldable guide ruler, an embedded bracket member is provided in the mounting groove for fixing the roller and enabling the roller to rotate.

[0009] In the above-mentioned foldable guide ruler, the embedded bracket component includes a threaded bracket and a bracket arranged in the installation groove. The bracket has a plurality of roller positioning grooves, and the rotating shaft of the roller is embedded in the roller positioning grooves.

[0010] In the above-mentioned foldable guide ruler, the threaded frame, the bracket and the guide rail are fixed by screws. A plurality of screw holes are provided in the threaded frame and the bracket, and the screws are threadedly engaged with the screw holes.

[0011] In the above-mentioned foldable guide ruler, end fixing pieces for fixing the threaded rack and the bracket are provided at both ends of the guide rail, and the end fixing pieces abut against both ends of the threaded rack and the bracket.

[0012] In the above-mentioned foldable guide ruler, the end fixing parts include plugs arranged at both ends of the guide rail, and a positioning groove running through the left and right is also opened in the guide rail. A positioning protrusion and an abutment block are provided on the inner side of the plug, the positioning protrusion is clamped with the positioning groove, and the abutment block is clamped with the installation groove.

[0013] In the above-mentioned foldable guide ruler, the plug is fixed to the guide rail via a hexagon socket screw.

[0014] In the above-mentioned foldable guide ruler, a limiting groove is further provided in the fixing seat, and the limiting groove is communicated with the fine-tuning receiving groove.

[0015] In the above-mentioned foldable guide ruler, a rotatable knob is installed on the fixing seat. When the end of the hinge structure away from the support bar slides into the limiting groove, the hinge structure can be locked by the knob.

[0016] Compared with the existing technology, the advantages of the present invention are:

[0017] 1. The support bar and the ruler in the present invention are connected by a hinge structure, which can realize the folding of the guide ruler, making it convenient to store and carry, effectively saving space, and the detachable anti-friction support structure lengthens the support surface, effectively solving the problem of dimensional consistency after the end point cutting, and significantly improving the accuracy of the operation. The detachable anti-friction support structure adopts a roller design, which greatly reduces the friction between the support bar and the working surface, making the operation smoother, reducing the labor intensity of the operator, and facilitating the carpenter to accurately control the required size, reducing manual measurement errors, and improving the flatness and consistency of the woodwork.

[0018] 2. The present invention can fine-tune the angle of the ruler through the fine-tuning receiving slot in the fixing seat to adapt to different working conditions, thereby improving the applicability of the guide ruler.

[0019] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the storage state of the present invention.

[0021] Figure 2 It is a schematic diagram of the present invention being deployed and used.

[0022] Figure 3 It is an exploded schematic diagram of the present invention.

[0023] Figure 4 It is a structural diagram of the fixed seat.

[0024] In the figure: support bar 1, ruler 2, fixing seat 3, hinge structure 4, fine-tuning storage slot 5, detachable anti-friction support structure 6, guide rail 7, mounting slot 8, roller 9, embedded bracket 10, threaded rack 11, bracket 12, roller positioning slot 13, screw 14, end fixing part 15, plug 16, positioning slot 17, positioning protrusion 18, abutting block 19, hexagon socket screw 20, limit slot 21, knob 22. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1-4As shown, a foldable guide ruler includes a support bar 1 and a scale 2, a fixing seat 3 is provided at the bottom of the scale 2, a hinge structure 4 for adjusting the rotation of the scale 2 is provided between the fixing seat 3 and the support bar 1, a fine-tuning storage groove 5 is provided in the fixing seat 3, one end of the hinge structure 4 is rotatably connected to the support bar 1, and the other end extends into the fine-tuning storage groove 5 and slidably cooperates with the fine-tuning storage groove 5, and a detachable anti-friction support structure 6 is installed on the support bar 1 for reducing the front friction when the support bar 1 abuts.

[0027] In this embodiment, this connection method of the hinge structure 4 allows the ruler 2 to rotate relative to the support bar 1, thereby realizing the adjustment and storage of the working state of the guide ruler. A fine-tuning storage groove 5 is provided in the fixing seat 3. One end of the hinge structure 4 is rotatably connected to the support bar 1, and the other end extends into the fine-tuning storage groove 5 and can slide therein, thereby fine-tuning the angle of the ruler 2. A detachable anti-friction support structure 6 is installed on the support bar 1, which not only reduces the frontal friction when the support bar 1 abuts the working surface, but also lengthens the support surface, solves the problem of dimensional consistency after the end point cutting, facilitates carpenters to accurately control the required size, reduces manual measurement errors, and improves the flatness and consistency of woodwork products.

[0028] Combine Figure 1 、 Figure 3 As shown, the detachable anti-friction support structure 6 includes a guide rail 7 mounted on the support bar 1 , a mounting groove 8 extending left and right is defined in the guide rail 7 , and a plurality of rotatable rollers 9 are mounted in the mounting groove 8 .

[0029] Specifically, the roller 9 contacts the working surface during operation, converting the sliding friction between the support bar 1 and the working surface into rolling friction, greatly reducing the friction force, and making the guide ruler move more smoothly during the operation. At the same time, the guide rail 7 is installed on the support bar 1, which lengthens the support surface and ensures the consistency of the final cutting size.

[0030] Combine Figure 1 、 Figure 3 As shown, an embedded bracket 10 is provided in the mounting groove 8 for fixing the roller 9 and allowing the roller 9 to rotate.

[0031] In this embodiment, an embedded bracket member 10 is provided in the mounting groove 8, which is used to fix the roller 9 and allow the roller 9 to rotate. This design ensures the stable rotation of the roller 9 and prevents it from shifting during the rotation process, further improving the stability of the guide ruler operation.

[0032] The embedded bracket member 10 includes a threaded bracket 11 and a bracket 12 arranged in the installation groove 8. The bracket 12 has a plurality of roller positioning grooves 13, and the rotating shaft of the roller 9 is embedded in the roller positioning grooves 13.

[0033] In this embodiment, the embedded bracket 10 is composed of a threaded frame 11 and a bracket 12. A number of roller positioning grooves 13 are provided in the bracket 12. The rotating shaft of the roller 9 is embedded in the roller positioning groove 13. This matching method allows the roller 9 to be installed firmly and provides a guarantee for the stable rotation of the roller 9.

[0034] Combine Figure 3 As shown, the threaded rack 11, the bracket 12 and the guide rail 7 are fixed by screws 14. A plurality of screw holes are provided in the threaded rack 11 and the bracket 12, and the screws 14 are screwed into the screw holes.

[0035] In this embodiment, the threaded frame 11, the bracket 12 and the guide rail 7 are fixed by screws 14. A number of screw holes are provided in the threaded frame 11 and the bracket 12, and the screws 14 are screwed into the screw holes. This connection method not only makes the components firmly connected, but also facilitates installation and disassembly, and facilitates later maintenance.

[0036] End fixing members 15 for fixing the threaded rack 11 and the bracket 12 are provided at both ends of the guide rail 7 , and the end fixing members 15 abut against both ends of the threaded rack 11 and the bracket 12 .

[0037] In this embodiment, end fixing members 15 are provided at both ends of the guide rail 7 for fixing the threaded rack 11 and the bracket 12. The end fixing members 15 further enhance the stability of the detachable anti-friction support structure 6 to prevent it from loosening during use.

[0038] The end fixing member 15 includes a plug 16 arranged at both ends of the guide rail 7. A positioning groove 17 is also opened in the guide rail 7 and runs through the left and right sides. A positioning protrusion 18 and an abutment block 19 are provided on the inner side of the plug 16. The positioning protrusion 18 is clamped with the positioning groove 17, and the abutment block 19 is clamped with the installation groove 8.

[0039] In this embodiment, the end fixing member 15 includes a plug 16, a positioning groove 17 is provided in the guide rail 7, and a positioning protrusion 18 and an abutment block 19 are provided on the inner side of the plug 16. The positioning protrusion 18 is engaged with the positioning groove 17, and the abutment block 19 is engaged with the mounting groove 8. The plug 16 and the guide rail 7 are fixed by the hexagon socket screw 20. This multiple fixing design greatly enhances the stability of the detachable anti-friction support structure 6.

[0040] Combine Figure 3 As shown, the plug 16 is fixed to the guide rail 7 via a hexagon socket screw 20 .

[0041] In this embodiment, the plug 16 and the guide rail 7 are fixed with hexagon socket screws 20, which further ensures the reliability and stability of the connection.

[0042] Combine Figure 1 、 Figure 3As shown, a limiting groove 21 is also provided in the fixing seat 3, and the limiting groove 21 is connected to the fine-tuning storage groove 5. A rotatable knob 22 is installed on the fixing seat 3. When the end of the hinge structure 4 away from the support bar 1 slides into the limiting groove 21, the hinge structure 4 can be locked by the knob 22.

[0043] In this embodiment, a limit groove 21 is further provided in the fixing seat 3, and the limit groove 21 is connected to the fine-tuning receiving groove 5. When the hinge structure 4 slides in the fine-tuning receiving groove 5, it can enter the limit groove 21 and be locked by locking the knob 22. Those skilled in the art should understand that the knob 22 is the locking structure of the existing guide ruler and is not the focus of this patent, so its structure and working principle will not be described in detail.

[0044] The working principle of the present invention is:

[0045] When the guide ruler needs to be stored, the ruler 2 is rotated toward the support bar 1 with the help of the hinge structure 4 to realize the folding of the guide ruler, which is convenient for storage and carrying. When the guide ruler needs to be used, the ruler 2 is unfolded and adjusted to a suitable angle through the hinge structure 4.

[0046] During use, if the angle of the ruler 2 needs to be fine-tuned, it can be achieved by sliding the hinge structure 4 in the fine-tuning storage slot 5. When the hinge structure 4 slides into the limit slot 21, the knob 22 is turned to lock the hinge structure 4 to ensure that the angle of the ruler 2 is fixed.

[0047] During cutting or drawing operations, the support bar 1 is placed on the work surface, and the roller 9 of the detachable anti-friction support structure 6 contacts the work surface. Since the rolling friction of the roller 9 is less than the traditional sliding friction, the guide ruler moves more smoothly on the work surface. At the same time, the detachable anti-friction support structure 6 lengthens the support surface, effectively ensuring the consistency of the end point size after cutting, and improving the accuracy of the operation.

[0048] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them with similar methods without departing from the spirit of the present invention.

[0049] Although this document frequently uses terms such as support bar 1, scale 2, fixing seat 3, hinge structure 4, fine-adjustment storage slot 5, detachable anti-friction support structure 6, guide rail 7, mounting slot 8, roller 9, embedded bracket 10, threaded bracket 11, bracket 12, roller positioning slot 13, screw 14, end fixing member 15, plug 16, positioning slot 17, positioning protrusion 18, abutment insert 19, hexagon socket screw 20, limiting slot 21, and knob 22, the use of other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention. Interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A foldable guide ruler comprising a support bar (1) and a ruler (2), characterized in that: A fixing seat (3) is provided at the bottom of the ruler (2); a hinge structure (4) for adjusting the rotation of the ruler (2) is provided between the fixing seat (3) and the support bar (1); a fine-tuning receiving groove (5) is provided in the fixing seat (3); one end of the hinge structure (4) is rotatably connected to the support bar (1), and the other end extends into the fine-tuning receiving groove (5) and slidably cooperates with the fine-tuning receiving groove (5); a detachable anti-friction support structure (6) is installed on the support bar (1) for reducing the front friction when the support bar (1) abuts.

2. A foldable guide ruler according to claim 1, characterized in that: The detachable anti-friction support structure (6) comprises a guide rail (7) mounted on the support bar (1), a left-right through-mounted mounting groove (8) is provided in the guide rail (7), and a plurality of rotatable rollers (9) are mounted in the mounting groove (8).

3. A foldable guide ruler according to claim 2, characterized in that: An embedded bracket component (10) is provided in the installation groove (8) for fixing the roller (9) and enabling the roller (9) to rotate.

4. A foldable guide ruler according to claim 3, characterized in that: The embedded bracket component (10) includes a threaded bracket (11) and a bracket (12) arranged in the installation groove (8); the bracket (12) has a plurality of roller positioning grooves (13), and the rotating shaft of the roller (9) is embedded in the roller positioning groove (13).

5. A foldable guide ruler according to claim 4, characterized in that: The threaded frame (11), the bracket (12) and the guide rail (7) are fixed by screws (14); a plurality of screw holes are provided in the threaded frame (11) and the bracket (12); the screws (14) are screwed into the screw holes.

6. A foldable guide ruler according to claim 4 or 5, characterized in that: End fixing members (15) for fixing the threaded rack (11) and the bracket (12) are provided at both ends of the guide rail (7), and the end fixing members (15) abut against both ends of the threaded rack (11) and the bracket (12).

7. A foldable guide ruler according to claim 6, characterized in that: The end fixing member (15) includes plugs (16) arranged at both ends of the guide rail (7), a positioning groove (17) extending leftward and rightward is provided in the guide rail (7), a positioning protrusion (18) and an abutting insert (19) are provided on the inner side of the plug (16), the positioning protrusion (18) is engaged with the positioning groove (17), and the abutting insert (19) is engaged with the mounting groove (8).

8. A foldable guide ruler according to claim 7, characterized in that: The plug (16) and the guide rail (7) are fixed via hexagon socket screws (20).

9. A foldable guide ruler according to any one of claims 1 to 7, characterized in that: A limiting groove (21) is also provided in the fixing seat (3), and the limiting groove (21) is connected to the fine-tuning receiving groove (5).

10. A foldable guide ruler according to claim 9, characterized in that: A rotatable knob (22) is mounted on the fixing seat (3). When the end of the hinge structure (4) away from the support bar (1) slides into the limiting groove (21), the hinge structure (4) can be locked by the knob (22).

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