Set square woodworking ruler

Abstract

The utility model discloses a set square woodworking ruler which comprises a set square main body, the set square main body is provided with a plurality of distance measuring edges with thicknesses, at least one side of each distance measuring edge is provided with a scale surface for measuring, a positioning piece is detachably fixed on the set square main body, and the positioning piece is provided with an indicating surface. And the indicating surface is vertical to the distance measuring edge and longitudinally positions the distance measuring edge. The utility model has the advantages that the scale marks can be accurately positioned on the surface of a workpiece, and the operation precision of a carpenter is improved; the position of the positioning piece is adjustable along the distance measuring edge, the tightness relative to the set square body is realized by rotating the stud, and the operation is convenient; the carrying is easy.

Description

Technical Field

[0001] This utility model relates to the field of woodworking ruler technology, and in particular to a triangular woodworking ruler. Background Technology

[0002] A woodworking ruler is used to measure and mark distances or angles on a workpiece to be cut or processed in a certain way. For example, a woodworking triangle ruler disclosed in Chinese patent document CN2024211458239 includes a triangle plate, a wavy frame, a rectangular frame, and a fitting mechanism. The triangle plate in the woodworking ruler includes a distance measuring scale and one or more angle measuring scales. The graduations on the distance measuring scale are typically positioned along one edge of the triangle plate, and the angle measuring scales are set along the hypotenuse of the plate. The carpenter places the plate on the surface of the workpiece and measures the desired distance or angle, then marks the measured distance or angle on the surface of the workpiece with a marking tool.

[0003] The triangular plates of known woodworking rulers are often relatively thick. This thickness can cause parallax errors, making it difficult for carpenters to make marks on the workpiece surface that are correctly aligned with the measuring marks on the plate, either for distance or angle measurements. In some cases, a base or handle is attached to the triangular plate to help the carpenter manipulate it. If a base or handle is placed on a woodworking right-angle ruler, measurement errors tend to increase because the increased thickness of the base causes the measuring scale to move further away from the workpiece surface. In some situations, the carpenter may try to tilt the plate downwards toward the workpiece surface to reduce the distance between the measuring scale and the surface to be marked. This arrangement is particularly problematic if the measuring marks must be offset inwards from the side edge of the workpiece.

[0004] Therefore, it is obviously necessary to design a triangular woodworking ruler that can accurately locate the corresponding position of the scale line on the workpiece surface to improve the accuracy of carpentry work. Utility Model Content

[0005] To overcome the shortcomings of existing triangular woodworking rulers, which are difficult to mark with their measuring scales and thus result in insufficient accuracy in carpentry work, this utility model provides a triangular woodworking ruler that can accurately position the scale lines on the workpiece surface, thereby improving the accuracy of carpentry work.

[0006] To achieve the above objectives, the present invention adopts the following technical solution.

[0007] A set square woodworking ruler includes a set square body with several distance measuring edges of thickness. At least one side of each distance measuring edge has a scale surface for measuring. A positioning element is detachably fixed to the set square body. The positioning element has an indicator surface that is perpendicular to the distance measuring edge and positions the distance measuring edge longitudinally.

[0008] The positioning element is detachably fixed to the main body of the triangular plate, facilitating adjustment of its position and shape change. It also allows multiple positioning elements to work together to accurately measure and mark the dimensions of the workpiece surface. The end where the scale line intersects with the distance measurement edge is the measuring point of the woodworking ruler. The indicator surface, perpendicular to the distance measurement edge, extends from the measuring point to the mark or measurement position, ensuring measurement accuracy. The indicator surface also helps users more precisely position the workpiece and scale line longitudinally, preventing measurement deviation.

[0009] Preferably, the indicator surface extends from the scale surface to the distance measurement edge. This forms an aligned guide surface, eliminating visual breaks between the scale lines and the edge, reducing alignment errors caused by viewing angles, and significantly improving the dimensional accuracy of carpenters.

[0010] Preferably, the positioning component includes a positioning part and a locking mechanism. The positioning part includes a horizontal part and a vertical part fixedly connected. The positioning part and the triangular plate body are locked together by the locking mechanism. The horizontal part corresponds to the scale surface, the vertical part corresponds to the distance measuring edge, and the indicating surface is located on the side of the positioning part. The rigid connection between the horizontal and vertical parts forms an L-shaped positioning structure. The vertical pressure applied by the locking mechanism achieves coordinated positioning and clamping of the horizontal part and the scale surface, and the vertical part and the distance measuring edge, ensuring the reliability of the positioning component fixed on the triangular plate body. Furthermore, the indicating surface is located on the side of the positioning part, making it convenient for carpenters to scribing and marking on the workpiece.

[0011] Preferably, the vertical part has an abutment surface on one side of the indicating surface, which abuts against the measuring edge. The abutment surface and the measuring edge form a surface contact constraint, which, compared with line contact or point contact, effectively disperses shear force, prevents the positioning element from deflecting under lateral force, and ensures the reliability of the positioning element on the triangular plate body.

[0012] Preferably, the contact surface is flat and fits snugly against the edge of the distance measurement. This flat fit design ensures uniform pressure distribution on the contact surface, avoiding edge wear caused by localized stress concentration, while also increasing the static friction threshold and improving the stability of the vertical positioning.

[0013] Preferably, the triangle plate body has a base on one side, and the positioning part also includes a clamping part. The horizontal part and the clamping part are located on opposite sides of the triangle plate body. The clamping part is fixedly connected to the vertical part, and the horizontal part has a screw hole. The locking mechanism is a stud that mates with the screw hole. In one configuration of the locking mechanism, the positioning part is an integral structure formed by the combination of the horizontal part, the vertical part, and the clamping part. The clamping part and the lower end of the stud form a bidirectional clamping mechanism for the triangle plate body, converting the axial preload of the threaded pair into a clamping force on the triangle plate body, achieving high tensile strength under low operating torque. The integrated base design facilitates the operation of the triangle plate. Because the base raises the height of one side of the triangle plate body, the clamping part of the positioning part also raises the height of the side of the triangle plate body, thus enabling the triangle plate body to adapt to the measurement and marking of workpiece surfaces with poor surface flatness.

[0014] Preferably, the stud has an operating cap at its outer end, with anti-slip vertical grooves on its outer circumference; or the stud has an operating ring at its top. This facilitates the rotation of the stud.

[0015] Preferably, elastic pads are provided on the opposite sides of the horizontal and clamping portions. This prevents the triangular plate from being scratched and allows for a more secure clamping.

[0016] Preferably, the positioning part is a cylindrical structure. Cylindrical positioning elements are easier to manufacture, and both sides of the cylindrical structure can serve as indicating surfaces, which is beneficial for the application of the positioning element.

[0017] Preferably, the edge of the positioning part has a transition section. This improves customer comfort and reduces the risk of scratches.

[0018] The advantages of this utility model are:

[0019] It can accurately locate the scale line position on the workpiece surface, improving the accuracy of carpenters' work;

[0020] The position of the positioning component is adjustable along the distance measurement edge, and the tightness relative to the main body of the triangular plate is achieved by rotating the stud, making it easy to operate;

[0021] Easy to carry. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of a triangular woodworking ruler disclosed in one embodiment of this utility model.

[0023] Figure 2 This is a cross-sectional view of the structure of a positioning component in a triangular wood ruler, as disclosed in one embodiment of the present invention, in conjunction with the main body of the triangular ruler.

[0024] Figure 3 This is a schematic diagram of the positioning component in a triangular wood ruler according to one embodiment of the present invention.

[0025] Figure 4 This is a utility model Figure 1 The above-view structural diagram of a set square wood ruler disclosed in the embodiment shown.

[0026] Figure 5 This is a schematic diagram of the positioning component in a triangular wood ruler according to another embodiment of the present invention.

[0027] Figure 6 This is a cross-sectional view of the structure of a positioning component in a triangular wood ruler, as disclosed in one embodiment of the present invention, in conjunction with the main body of the triangular ruler.

[0028] In the diagram: Triangle plate body 1, groove 10, base 11, distance measuring edge 12, scale surface 13, scale line 14, positioning part 2, indicating surface 20, positioning part 21, horizontal part 211, vertical part 212, abutting surface 213, clamping part 214, locking mechanism 22, stud 221, operating cap 222, anti-slip vertical groove 223, transition part 23, operating ring 24, locking slider 25, bushing 26, bolt 27. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] Example 1

[0031] like Figures 1 to 6 As shown, a set square woodworking ruler includes a set square body 1. The set square body 1 is provided with a plurality of distance measuring edges 12 with thickness. At least one side of the distance measuring edge 12 is provided with a scale surface 13 for measuring. A positioning member 2 is detachably fixed on the set square body 1. The positioning member 2 is provided with an indicator surface 20. The indicator surface 20 is perpendicular to the distance measuring edge 12 and positions the distance measuring edge 12 in the longitudinal direction.

[0032] The positioning element 2 is detachably fixed to the main body 1 of the triangle. The position adjustment and shape change of the positioning element 2 are convenient. The woodworking ruler can complete the precise measurement and marking of the workpiece surface through the cooperation of multiple positioning elements 2. The vertical distance between the indicator surface 20 and the measuring edge 12 can ensure the accuracy of measurement and marking. The indicator surface 20 helps the user to more accurately position the workpiece and the scale line 14 in the longitudinal direction, avoids deviation during measurement, and improves the accuracy of carpentry work.

[0033] The longitudinal projection of the triangle body 1 in the direction perpendicular to the triangle body 1 is a right triangle. The distance measuring edge 12 is located on the right-angled side and the hypotenuse of the longitudinal projection of the triangle body 1. The triangle body 1 has several grooves 10, and angle scales are set on both sides of the grooves 10 to measure angles. The positioning member 2 is detachably fixed relative to the triangle body 1, so that the position of the positioning member 2 can be adjusted on the distance measuring edge 12. The adjustment method includes, but is not limited to, sliding adjustment. The positioning member 2 can be directly installed at the required scale position on the distance measuring edge 12. The indicating surface 20 is set on the positioning member 2. After the position of the positioning member 2 relative to the triangle body 1 is fixed, the position of the indicating surface 20 is fixed. The triangle woodworking ruler disclosed in this utility model can usually use multiple positioning members 2 together. For example, when marking a 10-centimeter line segment on the surface of a workpiece, the distance measuring edge 12 of the set square woodworking ruler is equipped with two positioning elements 2. The indicating surfaces 20 of the two positioning elements 2 are spaced 10 centimeters apart. After aligning the set square woodworking ruler with the corresponding workpiece, the required 10-centimeter dimension can be measured directly on the workpiece surface by relying on the indicating surfaces 20 of the two positioning elements 2. The operation is convenient. Since the indicating surfaces 20 are perpendicular to the distance measuring edge 12 and are positioned longitudinally on the distance measuring edge 12 of the set square body 1, the marking pen will not deviate when marking and drawing lines using the indicating surfaces 20. The woodworking operation has high precision, does not rely on experience, and can improve the yield rate of the product workpiece.

[0034] In such Figure 4 In the illustrated scheme, the scale line 14 is inclined relative to the distance measuring edge 12, and the intersection of the scale line 14 and the distance measuring edge 12 is the measurement point. The indicator surface 20 needs to be measured and marked according to the measurement point position. In some schemes, the scale line 14 is set perpendicular to the distance measuring edge 12, and the indicator surface 20 is installed parallel to the scale line 14, that is, the indicator surface 20 coincides with the scale line 14 for measurement and marking.

[0035] Example 2

[0036] A set square woodworking ruler includes a set square body 1. The set square body 1 has several distance measuring edges 12 with thickness. At least one side of each distance measuring edge 12 has a scale surface 13 for measurement. A positioning member 2 is detachably fixed to the set square body 1. The positioning member 2 has an indicating surface 20, which is perpendicular to the distance measuring edges 12 and positions the distance measuring edges 12 longitudinally. The indicating surface 20 extends from the scale surface 13 to the distance measuring edge 12. This allows the indicating surface 20 to coincide with the measurement point of the distance measuring edge 12 and thus begin indicating, forming a guide surface that aligns the relative measurement point and the marked line position. This eliminates the visual discontinuity between the scale surface 13 and the distance measuring edge 12, reduces alignment errors caused by the viewing angle, and significantly improves the dimensional measurement accuracy during carpentry work.

[0037] The specific solution adopted is as follows:Figures 1 to 3 As shown, the triangular woodworking ruler includes a triangular body 1. The triangular body 1 has several distance measuring edges 12 with thickness. At least one side of each distance measuring edge 12 has a scale surface 13 for measurement. A positioning member 2 is detachably fixed to the triangular body 1. The positioning member 2 has an indicating surface 20, which is perpendicular to the distance measuring edge 12 and positions the distance measuring edge 12 longitudinally. The indicating surface 20 extends from the scale surface 13 to the distance measuring edge 12. The positioning member 2 includes a positioning part 21 and a locking mechanism 22. The positioning part 21 includes a horizontal part 211 and a vertical part 212 fixedly connected. The horizontal part 211 and the vertical part 212 are connected in an L-shape. The positioning part 21 and the triangular body 1 are locked by the locking mechanism 22. The horizontal part 211 corresponds to the scale surface 13, and the vertical part 212 corresponds to the distance measuring edge 12. The indicating surface 20 is located on the side of the positioning part 21. The rigid connection between the horizontal part 211 and the vertical part 212 forms an L-shaped positioning structure. The vertical pressure applied by the locking mechanism 22 enables the horizontal part 211 and the scale surface 13, the vertical part 212 and the distance measuring edge 12 to be positioned and fixed in a coordinated manner, ensuring the reliability of the positioning part 2 fixed on the triangular plate body 1. Furthermore, the indicator surface 20 is located on the side of the positioning part 21, making it convenient for carpenters to scribble and mark the workpiece by relying on the indicator surface 20.

[0038] When fixing the positioning part 2 and the triangular plate body 1, the inner side of the vertical part 212 abuts against the distance measuring edge 12 to form a preliminary positioning, and then the positioning part 21 and the triangular plate body 1 are locked by the locking mechanism 22.

[0039] For example, the positioning part 21 also includes a clamping part 214. The horizontal part 211 and the clamping part 214 are located on opposite sides of the triangular plate body 1. The clamping part 214 is fixedly connected to the vertical part 212. The horizontal part 211 is provided with a screw hole. The locking mechanism 22 is a stud 221 that is threaded with the screw hole. One configuration of the locking mechanism 22 is as follows: the positioning part 21 is an integral structure formed by combining the horizontal part 211, the vertical part 212, and the clamping part 214. The clamping part 214 and the lower end of the stud 221 form a bidirectional clamping mechanism for the triangular plate body 1, converting the axial preload of the threaded pair into a clamping force on the triangular plate body 1, thereby achieving high tensile strength under low operating torque. To facilitate the operation of the triangular plate wood ruler, a base 11 is provided on one side of the triangular plate body 1. The base 11 is a long strip plate structure. One side of the triangular plate body 1 is vertically fixed in the middle of the base 11 to form an approximately "T"-shaped structure. The integrated design of the base 11 facilitates the operation of the triangular plate. Since the base 11 raises the height of one side of the triangular plate body 1, the clamping part 214 of the positioning part 2 also raises the height of the side of the triangular plate body 1, thereby enabling the triangular plate body 1 to adapt to the measurement and marking of workpiece surfaces with poor surface flatness.

[0040] To improve the positioning accuracy of the positioning part 21 on the triangular plate body 1, the vertical part 212 is provided with an abutment surface 213 on the side of the indicator surface 20, and the abutment surface 213 abuts against the distance measuring edge 12. In this embodiment, the abutment surface 213 is a plane, and the abutment surface 213 fits against the distance measuring edge 12.

[0041] In use, the dimensions are measured using a triangle ruler for marking and processing. First, a positioning piece 2 is installed at any position on the distance measuring edge 12 of the triangle body 1. The opening groove formed by the horizontal part 211, the vertical part 212 and the clamping part 214 in the positioning part 21 is the mounting groove corresponding to the thickness of the triangle body 1. The width of the mounting groove is slightly larger than the thickness of the triangle body 1. When installing the positioning component 2 and the triangle body 1, first insert the side of the triangle body 1 where the distance measuring edge 12 is located into the mounting groove. Adjust the position of the positioning component 2 so that the bottom of the mounting groove, that is, the abutting surface 213 on the vertical part 212, fits against the distance measuring edge 12, and the measuring point formed by the intersection of a scale line 14 on the scale surface 13 and the distance measuring edge 12 is located on the plane of the indicating surface 20. Then rotate the stud 221. The stud 221 is downward under the threaded guidance of the screw hole until the lower end of the stud 221 presses against the scale surface 13 of the triangle body 1 and the clamping part 214 on the side facing the horizontal part 211 abuts against the other side of the triangle body 1. At this time, the positioning component 2 is fixed relative to the triangle body 1. Then, based on the scale on the main body 1 of the triangle, install another positioning piece 2 at the determined distance using the same installation steps as the previous positioning piece 2, so that the distance between the indicating surfaces 20 of the two positioning pieces 2 is equal to the required size. Then, place the triangle wood ruler against the surface of the workpiece and mark the lines through the indicating surfaces 20 to obtain a high-precision marking result.

[0042] When using a triangle ruler to measure the surface dimensions of a workpiece, first set a positioning piece 2 on the main body 1 of the triangle ruler and fix it. Then set another positioning piece 2 on the main body 1 of the triangle ruler with a gap and do not fix it at first, so that the positioning piece 2 can be moved and adjusted on the main body 1 of the triangle ruler. Then align the indicator surface 20 of the fixed positioning piece 2 with one end of the workpiece, slide the gap adjustment positioning piece 2 to the other end of the workpiece, and accurately measure the surface dimensions of the workpiece according to the scale reading between the indicator surfaces 20 of the two positioning pieces 2.

[0043] As an alternative to the above solution, a set square woodworking ruler includes a set square body 1. The set square body 1 has several distance measuring edges 12 with thickness. At least one side of each distance measuring edge 12 has a scale surface 13 for measurement. A positioning member 2 is detachably fixed to the set square body 1. The positioning member 2 has an indicating surface 20, which is perpendicular to the distance measuring edges 12 and positions the distance measuring edges 12 longitudinally. The indicating surface 20 extends from the scale surface 13 to the distance measuring edges 12. This forms a guiding surface that aligns the measurement point of the scale line 14 with the position of the scribing line, eliminating the visual discontinuity between the scale line 14 and the distance measuring edge 12, reducing alignment errors caused by the viewing angle, and significantly improving the dimensional measurement accuracy during carpentry work.

[0044] To improve the ease of operation of stud 221, such as Figure 3 As shown, the stud 221 has an operating cap 222 at its outer end, and the operating cap 222 has anti-slip vertical grooves 223 on its outer periphery. The anti-slip vertical grooves 223 can be parallel grooves or interlaced grooves in a grid pattern, etc.

[0045] As a simple replacement for the above solution, such as Figure 5 As shown, the stud 221 has an operating ring 24 on its top. The operating ring 24 is not only used for operating the stud 221, but also facilitates the carrying and placement of the positioning component 2.

[0046] To improve the fixing effect of the positioning component 2 and reduce scratches or pressure damage to the scale surface 13 of the triangular plate body 1, elastic pads are provided on the opposite sides of the horizontal part 211 and the clamping part 214. An elastic pad is provided at the lower end of the bolt 27, and the elastic pad is made of elastic materials such as rubber or silicone. The positioning part 21 is a cylindrical structure, and the cylindrical structure corresponding to the outer contour of the positioning part 21 includes, but is not limited to, square prisms, hexagonal prisms, etc. To improve user comfort and reduce the risk of scratches, a transition part 23 is provided along the edge of the positioning part 21. In this embodiment, a hexagonal prism structure is selected for the positioning part 21. The positioning part 21 can be formed by machining a piece away from the middle of the nut to form an opening groove, resulting in high forming efficiency. The transition part 23 includes, but is not limited to, transition fillets and transition chamfers.

[0047] Example 3

[0048] A set square woodworking ruler includes a set square body 1. The set square body 1 has several distance measuring edges 12 with thickness. At least one side of each distance measuring edge 12 has a scale surface 13 for measuring. A positioning member 2 is detachably fixed to the set square body 1. The positioning member 2 has an indicating surface 20, which is perpendicular to the distance measuring edges 12 and positions the distance measuring edges 12 longitudinally. The indicating surface 20 extends from the scale surface 13 to the distance measuring edges 12. The positioning member 2 includes a positioning part 21 and a locking mechanism 22. The positioning part 21 includes a horizontal part 211 and a vertical part 212 fixedly connected. The horizontal part 211 and the vertical part 212 are connected in an L-shape. The positioning part 21 and the set square body 1 are locked by the locking mechanism 22. The horizontal part 211 corresponds to the scale surface 13, the vertical part 212 corresponds to the distance measuring edge 12, and the indicating surface 20 is located on the side of the positioning part 21. The rigid connection between the horizontal part 211 and the vertical part 212 forms an L-shaped positioning structure. The vertical pressure applied by the locking mechanism 22 achieves coordinated positioning and fixation of the horizontal part 211 and the scale surface 13, and the vertical part 212 and the distance measuring edge 12, ensuring the reliability of the positioning component 2 fixed on the triangular plate body 1. Furthermore, the indicating surface 20 is located on the side of the positioning part 21, facilitating the carpenter's use of the indicating surface 20 to scribble and mark the workpiece. The only difference from Embodiment 2 is that... Figure 6 As shown, the locking mechanism 22 includes a bolt 27 and a locking slider 25 that is slidably disposed on the triangular plate body 1. The locking slider 25 is provided with a threaded hole that matches the bolt 27. The horizontal part 211 is provided with a through hole for the bolt 27 to pass through. When the bolt 27 and the threaded hole are threadedly locked, the nut on the bolt 27, together with the bushing 26, presses the horizontal part 211 against the triangular plate body 1.

[0049] In this design, the lower side of the horizontal part 211 can fit against the scale surface 13 on the upper side of the triangle body 1, so that the indicator surface 20 and the measuring point of the distance measuring edge 12 are directly attached, which greatly improves the accuracy of woodworking.

Claims

1. A set square woodworking ruler, comprising a set square body, the set square body having a plurality of distance measuring edges with thickness, and at least one side of the distance measuring edges having a scale surface for measuring, characterized in that, The triangular plate body is detachably fixed with a positioning component. The positioning component has an indicator surface, which is perpendicular to the distance measurement edge and positions the distance measurement edge longitudinally.

2. The set square woodworking ruler according to claim 1, characterized in that, The indicator surface extends from the scale surface to the edge of the distance measurement.

3. A set square woodworking ruler according to claim 2, characterized in that, The positioning component includes a positioning part and a locking mechanism. The positioning part includes a horizontal part and a vertical part that are fixedly connected. The positioning part and the triangular plate body are locked together by the locking mechanism. The horizontal part corresponds to the scale surface, the vertical part corresponds to the distance measurement edge, and the indicating surface is located on the side of the positioning part.

4. A set square woodworking ruler according to claim 3, characterized in that, The vertical part has an abutting surface on one side of the indicator surface, and the abutting surface abuts against the edge of the measuring distance.

5. A set square woodworking ruler according to claim 4, characterized in that, The contact surface is a plane, and the contact surface is in contact with the edge of the distance measurement.

6. A set square woodworking ruler according to claim 3, characterized in that, The triangular plate body has a base on one side, and the positioning part also includes a clamping part. The horizontal part and the clamping part are located on opposite sides of the triangular plate body. The clamping part is fixedly connected to the vertical part. The horizontal part has a screw hole, and the locking mechanism is a stud that is threaded with the screw hole.

7. A set square woodworking ruler according to claim 6, characterized in that, The stud is provided with an operating cap at its outer end, and the operating cap has anti-slip vertical grooves on its outer circumference; or the stud is provided with an operating ring at its top.

8. A set square woodworking ruler according to claim 6, characterized in that, Elastic pads are provided on the opposite sides of the horizontal part and the clamping part.

9. A set square woodworking ruler according to any one of claims 3 to 8, characterized in that, The positioning part is a cylindrical structure.

10. A set square woodworking ruler according to any one of claims 3 to 8, characterized in that, The positioning part has a transition part along its edge.

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