Angle positioning type protractor for engineering budget
By designing the angle positioning mechanism and the point-point mechanism in the protractor, the error and offset problems of the existing protractors during angle positioning and drawing are solved, and higher positioning accuracy and drawing accuracy are achieved.
Patent Information
- Application Number
- CN202422181237.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-05
AI Technical Summary
Existing protractors are inconvenient to position the required angles, which leads to errors easily when checking the annotated angles in the project budget, and manual points with bare hands are prone to deviations when drawing angles and slashes, which affects the drawing effect.
An angle positioning protractor for engineering budgets is designed, using an angle positioning mechanism and a point-sticking mechanism. Through the combination of a rotating seat, a rotating cover plate, an angle positioning arm, an adjustment table and a compression spring, the locking and accurate measurement of the specified angle is achieved; at the same time, through the cooperation of the lifting sleeve and a fixed point pen, the accurate point-sticking operation on the paper is achieved.
Through the use of the angle positioning mechanism, the error of manual judgment is reduced and the accuracy of positioning the angle is improved; the application of the point-stick mechanism improves the problem of the traditional point-sticking points being easily offset, and improves the accuracy of drawing angles and diagonal lines.
Smart Images
Figure CN222978767U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of protractors, and particularly relates to an angle positioning protractor for engineering budget. Background Technique
[0002] Drawing tools, commonly made of plastic or iron, can draw the required angles as needed, and can also measure angles, draw vertical lines, parallel lines, measure inclinations, perpendicularity, horizontality and other related angle applications. When making an engineering budget, the dimensions on the drawing will be measured: according to the markings and dimensions on the drawing, combined with on-site measurements, measure the dimensions and quantities of each component, equipment and material, and tools such as rulers and protractors can be used to ensure accuracy and precision.
[0003] However, the existing protractors are not convenient for positioning the required angles. In this way, it is easy to make mistakes when manually judging one by one the marked angles by the naked eye, and the efficiency is low when checking a large number of similar objects. In addition, when drawing angles and oblique lines, manually poking points by hand is prone to deviation, which affects the drawing effect. Content of the Utility Model
[0004] The purpose of the utility model is to provide an angle positioning protractor for engineering budget to solve the problems put forward in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: an angle positioning protractor for engineering budget, including a protractor body, the surface of the protractor body is provided with scale lines, the upper part of the protractor body is provided with an angle positioning mechanism, the angle positioning mechanism includes a rotating seat, a rotating cover plate, an angle positioning arm, an adjusting table and a compression spring. The rotating seat is embedded and fixed on the upper end surface of the protractor body, the rotating cover plate is arranged on the upper end of the rotating seat, the angle positioning arm is fixed on the side surface of the rotating cover plate, the adjusting table is arranged in the inner cavity of the rotating seat, the compression spring is sleeved on the surface of the adjusting table, and one end of the angle positioning arm is provided with a poking point mechanism. The poking point mechanism includes a fixed sleeve, a lifting sleeve and a fixed-point pen. The fixed sleeve is fixed at one end of the angle positioning arm far away from the rotating seat, the lifting sleeve is arranged inside the fixed sleeve, an elastic rubber sleeve is fixed on the inner wall of the lifting sleeve, and the fixed-point pen is arranged in the elastic rubber sleeve on the inner wall of the lifting sleeve.
[0006] It should be noted in the solution that the upper end of the compression spring is fixed on the inner top wall of the rotating seat, the lower end of the compression spring is fixed on the bottom plate of the adjusting table, and the adjusting table is movably connected in the inner cavity of the rotating seat.
[0007] Further, it is worth noting that a guiding groove is provided inside the adjusting table. A non - detachment guiding post is fixed at the center of the inner bottom wall of the rotating seat, and the adjusting table is movably connected to the outside of the non - detachment guiding post.
[0008] Furthermore, it should be noted that the upper end of the adjusting table is fixed at the center of the lower end surface of the rotating cover plate, and the lower end surface of the angle positioning arm is attached to the upper surface of the protractor body.
[0009] As a preferred embodiment, a perspective opening is provided on the upper end surface of the angle positioning arm, and the perspective opening extends to the area where the scale lines on the angle positioning arm are located.
[0010] As a preferred embodiment, a lifting collar is fixed on the side surface of the lifting sleeve. A return spring is sleeved on the surface of the lifting sleeve inside the fixed sleeve housing, and the lifting collar is slidably connected inside the fixed sleeve housing.
[0011] As a preferred embodiment, one end of the return spring is fixed on the inner bottom wall of the fixed sleeve housing, and the other end of the return spring is fixed on the lower end surface of the lifting collar.
[0012] As a preferred embodiment, a fixed - point pen tip is provided at the lower end of the fixed - point pen. The fixed - point pen tip extends out of the lower port of the lifting sleeve. The lifting sleeve is slidably connected in the fixed sleeve housing, and a pressing handle is fixed on the side surface of the lifting sleeve.
[0013] Compared with the prior art, the angle - positioning protractor for engineering budget provided by the present utility model has at least the following beneficial effects:
[0014] ⑴ Through the provided angle - positioning mechanism, the rotating cover plate and the angle - positioning arm can be rotated and adjusted to a specified angle. The angle - positioning arm is pressed against the surface of the protractor body under the resilience of the compression spring and locks the specified angle. This is convenient for continuously measuring a fixed angle and providing drawing conditions. The method of positioning the required angle on the protractor can reduce the error of manual judgment.
[0015] ⑵ Through the provided puncturing mechanism, when using it to draw an angular straight line, during the downward movement of the lifting sleeve, the fixed - point pen tip of the fixed - point pen can be accurately punctured on the paper surface. This method can improve the situation that traditional free - hand puncturing is prone to deviation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0017] Figure 1 It is a three-dimensional view of the overall structure of the angle positioning protractor for engineering budget of the present utility model;
[0018] Figure 2 It is a three-dimensional view of the angle positioning arm structure of the angle positioning protractor for engineering budget of the present utility model;
[0019] Figure 3 It is a three-dimensional view of the cross-sectional structure of the rotating seat of the angle positioning protractor for engineering budget of the present utility model;
[0020] Figure 4 It is a three-dimensional view of the cross-sectional structure of the fixed sleeve of the angle positioning protractor for engineering budget of the present utility model.
[0021] In the figure: 1, protractor body; 2, scale lines; 3, rotating seat; 4, rotating cover plate; 5, angle positioning arm; 6, perspective opening; 7, adjusting table; 8, compression spring; 9, guiding groove; 10, anti-disengagement guiding column; 11, fixed sleeve; 12, lifting sleeve; 13, fixed-point pen; 14, lifting collar; 15, return spring; 16, fixed-point pen tip; 17, pressing handle. Specific embodiments
[0022] The following further describes the present utility model in combination with the embodiments.
[0023] Please refer to Figures 1-4 , the present utility model provides an angle positioning protractor for engineering budget, including a protractor body 1. Scale lines 2 are provided on the surface of the protractor body 1. An angle positioning mechanism is provided on the upper part of the protractor body 1. The angle positioning mechanism includes a rotating seat 3, a rotating cover plate 4, an angle positioning arm 5, an adjusting table 7 and a compression spring 8. The rotating seat 3 is fixedly embedded in the upper end surface of the protractor body 1. The rotating cover plate 4 is arranged on the upper end of the rotating seat 3. The angle positioning arm 5 is fixed on the side surface of the rotating cover plate 4. The adjusting table 7 is arranged in the inner cavity of the rotating seat 3. The compression spring 8 is sleeved on the surface of the adjusting table 7. A puncturing mechanism is provided at one end of the angle positioning arm 5. The puncturing mechanism includes a fixed sleeve 11, a lifting sleeve 12 and a fixed-point pen 13. The fixed sleeve 11 is fixed at one end of the angle positioning arm 5 away from the rotating seat 3. The lifting sleeve 12 is arranged inside the fixed sleeve 11. An elastic rubber sleeve is fixed on the inner wall of the lifting sleeve 12. The fixed-point pen 13 is arranged in the elastic rubber sleeve on the inner wall of the lifting sleeve 12.
[0024] Further, as shown in Figure 1 , Figure 2 and Figure 3 , it is specifically noted that the upper end of the pressing spring 8 is fixed on the inner top wall of the rotating seat 3, the lower end of the pressing spring 8 is fixed on the bottom plate of the adjusting table 7, and the adjusting table 7 is movably connected to the inner cavity of the rotating seat 3.
[0025] Further, as shown in Figure 3 , it is specifically noted that a guiding groove 9 is provided inside the adjusting table 7, and an anti - detachment guiding post 10 is fixed at the center of the inner bottom wall of the rotating seat 3, and the adjusting table 7 is movably connected to the outside of the anti - detachment guiding post 10.
[0026] The present solution has the following working process: Before drawing a straight line at an angle, pull the angle positioning arm 5 upward, driving the adjusting table 7 to lift upward and cancel the pressing effect on the protractor body 1. At this time, the adjusting table 7 slides upward along the inner cavity of the rotating seat 3 and compresses the pressing spring 8. Subsequently, control the rotation of the rotating cover plate 4 and the angle positioning arm 5 and adjust them to the specified angle. The angle positioning arm 5 is pressed against the surface of the protractor body 1 under the resilience of the pressing spring 8 and locks the specified angle. In this way, it is convenient to continuously measure a fixed angle and provide drawing conditions. The method of positioning the required angle on the protractor can reduce the error of manual judgment.
[0027] According to the above - mentioned working process, it can be known that: Control the rotation of the rotating cover plate 4 and the angle positioning arm 5 and adjust them to the specified angle. The angle positioning arm 5 is pressed against the surface of the protractor body 1 under the resilience of the pressing spring 8 and locks the specified angle. In this way, it is convenient to continuously measure a fixed angle and provide drawing conditions. The method of positioning the required angle on the protractor can reduce the error of manual judgment.
[0028] Further, as shown in Figure 1 , Figure 2 and Figure 4 , it is specifically noted that the upper end of the adjusting table 7 is fixed at the center of the lower end surface of the rotating cover plate 4, and the lower end surface of the angle positioning arm 5 is attached to the upper surface of the protractor body 1.
[0029] Further, as shown in Figure 4 , it is specifically noted that a perspective opening 6 is provided on the upper end surface of the angle positioning arm 5, and the perspective opening 6 extends to the area where the scale lines 2 on the angle positioning arm 5 are located.
[0030] Further, as shown in Figure 1 , it is specifically noted that a lifting collar 14 is fixed on the side surface of the lifting sleeve 12, and a return spring 15 is sleeved on the surface of the lifting sleeve 12 inside the fixed housing 11, and the lifting collar 14 is slidably connected to the inside of the fixed housing 11.
[0031] Furthermore, as Figure 1 shown, it is worth specifically stating that one end of the return spring 15 is fixed on the inner bottom wall of the fixed sleeve housing 11, and the other end of the return spring 15 is fixed at the lower end surface of the lifting collar 14. When using it in a straight line at a drawing angle, the angle positioning arm 5 can be used to determine the straight line drawing angle. Subsequently, press the pressing handle 17 on the lifting sleeve 12, and the lifting sleeve 12 slides downward along the fixed sleeve housing 11 and compresses the return spring 15. During the downward movement of the lifting sleeve 12, the positioning tip 16 of the positioning pen 13 can be controlled to accurately punch points on the paper surface. This method can improve the situation that traditional freehand punching is prone to deviation.
[0032] Furthermore, as Figure 1 shown, it is worth specifically stating that the lower end of the positioning pen 13 is provided with a positioning tip 16, the positioning tip 16 extends out of the lower port of the lifting sleeve 12, the lifting sleeve 12 is slidably connected in the fixed sleeve housing 11, and a pressing handle 17 is fixed on the side surface of the lifting sleeve 12.
[0033] In summary: Control the rotation of the rotating cover plate 4 and the angle positioning arm 5 and adjust them to the specified angle. The angle positioning arm 5 is pressed against the surface of the protractor body 1 under the resilience of the compression spring 8 and locks the specified angle. This is convenient for continuously measuring the fixed angle and providing drawing conditions. The method of positioning the required angle on the protractor can reduce the error of manual judgment; when using it in a straight line at a drawing angle, during the downward movement of the lifting sleeve 12, the positioning tip 16 of the positioning pen 13 can be controlled to accurately punch points on the paper surface. This method can improve the situation that traditional freehand punching is prone to deviation.
[0034] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.
Claims
1. An angle positioning protractor for engineering budgeting, comprising a protractor body (1), characterized in that: The surface of the protractor body (1) is provided with scale lines (2); the upper part of the protractor body (1) is provided with an angle positioning mechanism, the angle positioning mechanism comprising a rotating seat (3), a rotating cover plate (4), an angle positioning arm (5), an adjustment platform (7) and a pressing spring (8); the rotating seat (3) is embedded and fixed at the upper end surface of the protractor body (1); the rotating cover plate (4) is arranged at the upper end of the rotating seat (3); the angle positioning arm (5) is fixed on the side of the rotating cover plate (4); the adjustment platform (7) is arranged inside the rotating seat (3); The pressing spring (8) is sleeved on the surface of the adjusting platform (7), one end of the angle positioning arm (5) is provided with a poking mechanism, the poking mechanism comprises a fixed sleeve (11), a lifting sleeve (12) and a fixed-point pen (13), the fixed sleeve (11) is fixed to one end of the angle positioning arm (5) away from the rotating seat (3), the lifting sleeve (12) is inserted into the interior of the fixed sleeve (11), the inner wall of the lifting sleeve (12) is fixed with an elastic rubber sleeve, and the fixed-point pen (13) is inserted into the elastic rubber sleeve on the inner wall of the lifting sleeve (12).
2. The angle positioning protractor for engineering budgeting according to claim 1, characterized in that: The upper end of the compression spring (8) is fixed on the inner top wall of the rotating seat (3), and the lower end of the compression spring (8) is fixed on the bottom plate of the adjustment platform (7). The adjustment platform (7) is movably connected in the inner cavity of the rotating seat (3).
3. The angle positioning protractor for engineering budgeting according to claim 2, characterized in that: A guide groove (9) is provided inside the adjustment platform (7), an anti-slip guide column (10) is fixed at the center of the inner bottom wall of the rotating seat (3), and the adjustment platform (7) is movably connected to the outside of the anti-slip guide column (10).
4. The angle positioning protractor for engineering budgeting according to claim 3, characterized in that: The upper end of the adjustment platform (7) is fixed at the center of the lower end surface of the rotating cover plate (4), and the lower end surface of the angle positioning arm (5) is attached to the upper surface of the protractor body (1).
5. The angle positioning protractor for engineering budgeting according to claim 4, characterized in that: The upper end surface of the angle positioning arm (5) is provided with a perspective opening (6), and the perspective opening (6) extends to the area where the scale pattern (2) on the angle positioning arm (5) is located.
6. The angle positioning protractor for engineering budgeting according to claim 5, characterized in that: A lifting ring (14) is fixed on the side surface of the lifting sleeve (12), a return spring (15) is sleeved on the surface of the lifting sleeve (12) inside the fixed shell (11), and the lifting ring (14) is slidably connected inside the fixed shell (11).
7. The angle positioning protractor for engineering budgeting according to claim 6, characterized in that: One end of the return spring (15) is fixed on the inner bottom wall of the fixed sleeve (11), and the other end of the return spring (15) is fixed on the lower end surface of the lifting sleeve (14).
8. The angle positioning protractor for engineering budgeting according to claim 7, characterized in that: The lower end of the fixed-point pen (13) is provided with a fixed-point pen tip (16), and the fixed-point pen tip (16) extends out of the lower end of the lifting sleeve (12). The lifting sleeve (12) is slidably connected in the fixed sleeve shell (11), and a pressing handle (17) is fixed on the side surface of the lifting sleeve (12).