Square square

Abstract

The utility model relates to the technical field of woodworking instruments, in particular to a square. The utility model provides a right-angle ruler which comprises a ruler head and a ruler body rotatably arranged on the ruler head through a rotating shaft. A plurality of grooves are distributed in the ruler body and form a ring by taking the rotating shaft as the center; the ruler head is provided with an elastic column, and the elastic column is provided with a protrusion. In the rotating process of the ruler body, the protrusions can be clamped into the different grooves. The technical problem that in the prior art, use cannot be conducted at non-right-angle angles is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of woodworking instruments, and in particular to a right-angle ruler. Background Technology

[0002] A woodworking right-angle ruler is one of the most basic and important measuring and marking tools in woodworking. Its core function is to check and create precise 90-degree right angles, and it is also commonly used for drawing lines (especially vertical and parallel lines) and checking the straightness of workpieces. It typically consists of two parts: a long, wide body and a narrower, shorter strip. These two parts are permanently fixed together at a precise 90-degree angle (usually molded as a single piece or precisely secured with rivets / screws), forming a stable "L" shape. However, a fixed L-shaped ruler cannot meet the diverse needs of everyday use.

[0003] Chinese utility model patent CN203132444U, published on August 14, 2013, discloses a multifunctional woodworking ruler. The ruler body consists of two scales, each comprising a fixed section and a sliding section. The fixed section has grooves on both sides, and the sliding section engages within these grooves. A fixed shaft connects the two scales at the zero mark of the fixed section, allowing them to rotate freely along the shaft. A positioning pin is located at the lower end of the fixed shaft and fixed to its center. Because this multifunctional woodworking ruler consists of two extendable scales, it can accurately locate two-dimensional coordinates. Especially when locating multiple processing points with identical parameters, only the scale length needs to be set once to quickly determine all the positioning points, resulting in very high efficiency. However, this patent only discloses two rotatable scales but does not reveal the specific rotation structure, making it unsuitable for use at non-right-angle angles.

[0004] Therefore, it is necessary to propose a right-angle ruler whose scale can rotate. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a right-angle ruler, which aims to solve the technical problem that the prior art cannot be used at non-right-angle angles.

[0006] To achieve the above objectives, this utility model proposes a right-angle ruler, including a ruler head and a ruler body rotatably mounted on the ruler head via a rotating shaft; the ruler body is provided with multiple grooves, which form a ring around the rotating shaft; the ruler head is provided with an elastic post, and the elastic post is provided with a protrusion; during the rotation of the ruler body, the protrusion can be engaged into different grooves.

[0007] Preferably, the elastic column includes a housing and an elastic body disposed within the housing; the protrusion is a sphere that is engaged with the housing, and the protrusion is connected to the elastic body and is capable of compressing the elastic body.

[0008] Preferably, there are multiple elastic columns, and the distances between the elastic columns and the rotating shaft are equal.

[0009] Preferably, there are four elastic columns, with two closely spaced elastic columns forming a group, and the two groups of elastic columns being symmetrical from left to right.

[0010] Preferably, the ruler body is provided with several rows of marking holes and several track holes.

[0011] Preferably, the ruler head comprises two ruler head pieces, and the ruler body is disposed between the ruler head pieces; the pivot is a screw that can connect the two ruler pieces.

[0012] Preferably, a stud is provided on the side of the ruler head away from the ruler body, and the stud connects two ruler pieces; a slot is provided on the ruler body; during the rotation of the ruler body, the stud can be locked in the slot.

[0013] Preferably, a leveling post is provided between the two ruler pieces, and the part of the leveling post protruding from the ruler piece is cylindrical and has the same thickness as the ruler body.

[0014] Preferably, the ruler head is provided with leveling column mounting holes and marking column mounting holes.

[0015] Compared with the prior art, the beneficial effects of the right-angle ruler provided by this utility model are as follows:

[0016] 1. The ruler head and body can rotate, and the grooves and protrusions can be used to position the ruler at different angles, thus enabling the marking of lines at different angles.

[0017] 2. The elastic column, in conjunction with the protrusion, allows the ruler to be fixed in the groove position, making positioning simpler.

[0018] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the right-angle ruler according to an embodiment of the present invention.

[0020] Figure 2 This is a structural schematic diagram of the right-angle ruler at another angle according to an embodiment of this utility model.

[0021] Figure 3 This is a schematic diagram of the ruler body according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of the elastic column according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the structure of the right-angle ruler after it has been stored according to an embodiment of this utility model.

[0024] In the diagram: 1. Ruler head; 11. Ruler head piece; 12. Stud; 13. Leveling post mounting hole; 14. Marking post mounting hole; 2. Ruler body; 21. Groove; 22. Marking hole; 23. Track hole; 24. Slot; 3. Shaft; 4. Elastic post; 41. Protrusion; 42. Shell; 43. Elastomer; 5. Leveling post. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0026] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0027] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Right-angle rulers are generally used for marking lines in woodworking, but they can also be used in the construction industry or other fields for drawing.

[0030] See Figure 1 This utility model provides a right-angle ruler, including a ruler head 1 and a ruler body 2 rotatably mounted on the ruler head 1 via a pivot 3. Ordinary right-angle rulers can only be fixed in parallel and perpendicular positions, and cannot be fixed within the 0-90° range. This embodiment proposes a specific rotating structure that allows for positioning at more different angles for marking, thus broadening its applicability.

[0031] See Figure 1-4 The ruler body 2 has multiple grooves 21 distributed around the rotating shaft 3, forming a ring. The ruler head 1 has an elastic post 4 with a protrusion 41. During rotation, the protrusion 41 can engage with different grooves 21. The elastic post 4 always tends to move the protrusion 41 towards the groove 21. When compressed, the protrusion 41 moves away from the groove 21. During rotation, the protrusion 41 moves along the circle formed by the grooves 21, and when it reaches a groove 21, it engages to form a stable structure. Different numbers of grooves 21 can create different angle units. For example, four evenly distributed grooves 21 can only represent 0° and 90° angles; if there are enough grooves 21, they can be fixed between 0° and 90°.

[0032] For further details, please refer to [link / reference]. Figure 4 The elastic column 4 includes a housing 42 and an elastic body 43 disposed within the housing; the protrusion 41 is a ball that is engaged on the housing 42, and the protrusion 41 is connected to the elastic body 43 and can compress the elastic body 43.

[0033] Specifically, the housing 42 is detachably fixed to the ruler head 1. The protrusion 41 is an iron ball, with at least half of it embedded within the housing 42. The protrusion 41 can rotate freely within the housing 42, reducing friction. The elastic body 43 can preferably be a spring, or other elastic material, thus constantly pushing the protrusion 41 away from the housing 42. The housing 42 also has space to accommodate the protrusion 41, allowing it to retract further into the housing 42 under external force.

[0034] Furthermore, see Figure 1 There are multiple elastic pillars 4, and each elastic pillar 4 is equidistant from the rotating shaft 3. There can be one or more elastic pillars 4; having multiple pillars provides more fixing points, more points for the grooves and protrusions to engage, and makes the ruler body and ruler head less prone to wobbling.

[0035] More specifically, there are four elastic pillars 4, with two closely spaced elastic pillars 4 forming a group. The two groups of elastic pillars 4 are symmetrical from left to right, with the axis of symmetry being the diameter of the circle formed by the groove 21. This arrangement further improves the fixation of the ruler body and head, preventing rotation during use.

[0036] For further details, please refer to [link / reference]. Figure 1 The right-angle ruler can be used with a marking tool, which can be a sharp nail or a pen for marking. The ruler body 2 has several rows of marking holes 22, preferably two rows with 12 holes in each row. The right-angle ruler has graduations to clearly show the specific location of the marking holes 22. The ruler head 1 has marking post mounting holes 14, through which the marking tool can be directly mounted to prevent loss when not in use. The ruler body 2 has several track holes 23, which are shaping holes to facilitate subsequent processing after marking the corresponding shape.

[0037] In an optional embodiment, see [reference] Figure 2 The ruler head 1 comprises two ruler head pieces 11, and the ruler body 2 is disposed between the ruler head pieces 11; the pivot 3 is a screw that connects the two ruler pieces 11. Both the ruler head pieces 11 and the ruler body 2 can be made of metal. The connecting parts are all flat, allowing them to fit against a plane for easy marking.

[0038] Furthermore, a leveling post 5 is provided between the two ruler pieces 11. The portion of the leveling post 5 protruding from the ruler piece 11 is cylindrical and has the same thickness as the ruler body 2. When used on a square wooden board, the ruler piece 11 rests against the vertical side of the square wooden board, and the ruler body is attached to the upper surface of the square wooden board. Because the ruler is relatively heavy, it will rotate and fall off when released. In this state, the bottom of the leveling post 5 and the lower surface of the ruler body are on the same plane, and the upper surface of the leveling post 5 and the upper surface of the ruler body are also on the same plane, so both sides can be used. Placing the leveling post on the upper surface of the square wooden board keeps the ruler balanced and prevents it from tipping over.

[0039] Furthermore, see Figure 2 The ruler head 1 is provided with a leveling column mounting hole 13. When storing, the leveling column 5 can be removed and installed into the leveling column mounting hole 13.

[0040] In an optional embodiment, see [reference] Figure 1 and Figure 5 The ruler head 1 has a stud 12 on the side away from the ruler body 2, which connects two ruler pieces 11. The ruler body 2 has a slot 24; during the rotation of the ruler body 2, the stud 12 can be engaged in the slot 24. This design allows the ruler body and ruler head to change angles between 0° and 90°. When the slot 24 and stud 12 are engaged, the angle is 0°; when they are perpendicular, the angle is 90°. Line drawing and shape extraction can be performed at other angles.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A right-angle ruler, comprising a ruler head (1) and a ruler body (2) rotatably mounted on the ruler head (1) via a pivot (3); characterized in that: The ruler body (2) is provided with multiple grooves (21), and the grooves (21) form a ring with the rotating shaft (3) as the center; the ruler head (1) is provided with an elastic column (4), and the elastic column (4) is provided with a protrusion (41); during the rotation of the ruler body (2), the protrusion (41) can be inserted into different grooves (21).

2. A right-angle ruler as described in claim 1, characterized in that: The elastic column (4) includes a housing (42) and an elastic body (43) disposed inside the housing; the protrusion (41) is a ball that is locked on the housing (42), and the protrusion (41) is connected to the elastic body (43) and can compress the elastic body (43).

3. A right-angle ruler as described in claim 2, characterized in that: There are multiple elastic columns (4), and the distance between each elastic column (4) and the rotating shaft (3) is equal.

4. A right-angle ruler as described in claim 2, characterized in that: There are four elastic columns (4), and two elastic columns (4) that are close to each other form a group. The two groups of elastic columns (4) are symmetrical from left to right.

5. A right-angle ruler as described in claim 1, characterized in that: The ruler body (2) is provided with several rows of marking holes (22) and several track holes (23).

6. A right-angle ruler as described in claim 1, characterized in that: The ruler head (1) consists of two ruler head pieces (11), and the ruler body (2) is disposed between the ruler head pieces (11); the pivot (3) is a screw that can connect the two ruler head pieces (11).

7. A right-angle ruler as described in claim 6, characterized in that: The ruler head (1) is provided with a stud (12) on the side away from the ruler body (2), and the stud (12) connects two ruler head pieces (11); the ruler body (2) is provided with a slot (24); during the rotation of the ruler body (2), the stud (12) can be locked in the slot (24).

8. A right-angle ruler as described in claim 6, characterized in that: A leveling post (5) is provided between the two ruler pieces (11). The part of the leveling post (5) that protrudes from the ruler piece (11) is cylindrical and has the same thickness as the ruler body (2).

9. A right-angle ruler as described in claim 8, characterized in that: The ruler (1) is provided with leveling column mounting holes (13) and marking column mounting holes (14).

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