43 results about "Straightedge" patented technology

The present application relates to the technical field of steel metallurgy, and particularly relates to a steel ingot circle center positioning device and method, which comprises a machine body serving as a carrier of the whole device, a base for driving the copper ingot to rotate is arranged on the machine body, a marking mechanism for positioning the circle center position of the steel ingot is arranged on the machine body, and a transmission mechanism for automatic positioning is further arranged on the machine body, the marking mechanism comprises two sliding columns fixed on the two sides of the machine body, a ruler is fixed between the two sliding columns, a transmission groove is formed in the ruler, a connecting rod is slidably connected to the transmission groove, and a pen head for marking the circle center position is fixed to the end of the connecting rod. The marking mechanism is arranged, two straight lines are drawn, the circle center position is determined through the intersection point, the accuracy of measurement is improved, the circle center position of steel ingots with different sizes can be quickly and accurately determined, and more measurement data can be obtained through the contact and movement of multiple steel ingots, so that the accuracy of the circle center position is improved.

The present application relates to the technical field of building engineering leveling, aiming at solving the problems of low flatness precision in the prior art using the way of leveling with a straightedge and the problem of uneven surface of the leveling layer in the way of leveling with a roller, providing a one-time structure floor concrete leveling device and leveling method, the leveling device comprises a leveling frame body, the leveling frame body is connected with a plurality of support columns, the support height of each support column can be adjusted, a pipe level is installed on the leveling frame body; a pedestrian passageway is arranged on both sides of the leveling frame body, a guide rail is arranged on the leveling frame body, a push rod is arranged on the guide rail, the push rod can move back and forth along the guide rail; a leveling scraper is connected to the push rod, the lower end elevation of the leveling scraper is consistent with the design elevation of the floor leveling layer top surface; the present application can realize fast, efficient and accurate leveling construction of one-time structure floor, is convenient to operate, has high precision, greatly improves the construction efficiency and reduces the construction cost.

1. Name of the product in this design: Flat Plaster Scraper. 2. Purpose of this product design: A leveling tool for laying floor tiles without damaging them. It can also be used as a straightedge. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

A multi-purpose measuring tool is provided. The tool includes a compact housing having two parallel lateral sidewalls, one of which includes a clip for attachment to a belt or bag. A tape measure extends from the front side of the housing and is retractably stored therein. The distal end of the tape measure is fitted with a two-pronged hook that allows for precise circular measurements. An opening in the hook allows a writing utensil to mark a workpiece. The tool further incorporates a square angle bracket on the housing for alignment during cutting operations, while the edge of the tape measure can be used as a straight ruler. Additionally, the base of the tool includes a puncturing member designed for tasks such as opening insulation or cardboard boxes.

The utility model provides a PVF filter element machining tool which is characterized in that a cylinder is vertically arranged on a bottom plate, a first cutting notch is formed in one side of the cylinder, a blanking groove is formed in the position, below the first notch, of the bottom plate, and one end of the blanking groove penetrates through one side of the bottom plate; the two arc clamping plates are vertically arranged on the bottom plate and arranged on the two sides of the cylinder, and a second cutting notch is formed in the position, located above the discharging groove, between the two arc clamping plates. Compared with the prior art, the hollow round pipe of the PVF filter element is arranged on the cylinder in a sleeving manner, half of the hollow round pipe is located on the inner sides of the two arc clamping plates, the first cutting notch and the second cutting notch which are formed in the same direction are formed in the cylinder and the two arc clamping plates respectively, and the PVF filter element can be cut through limitation of the first cutting notch and the second cutting notch; according to the C-shaped tubular notch cutting tool, the size of each cut C-shaped tubular notch can be effectively ensured to be consistent, the notch cutting is fast and convenient by manually holding the tool by hand, scales on a ruler do not need to be aligned, and the machining efficiency is effectively improved.

This utility model discloses a laser cutting table blade structure with positioning steps, relating to the field of laser cutting equipment technology. It includes: a support base and a blade assembly connected to the support base. The support base includes interconnected horizontal beams and vertical beams, which form a support space around each other. The blade assembly includes a straightedge blade and a cutting blade. Positioning steps are machined at both ends of the straightedge blade to position the placed plate material, ensuring the quality of laser cutting. Compared to traditional independently installed split straightedges, this structure significantly improves impact resistance, is simple and reliable, and avoids straightedge deformation affecting positioning accuracy. Furthermore, it eliminates the need for repeated disassembly and assembly, effectively guaranteeing the positioning accuracy of the plate material.

The application discloses a precise measuring scale for a bent pipe, belongs to the technical field of YBC coordinate design measurement and numerical control bending forming of a pipe, and solves the problems of long trial and error period, complex process, complex structure of an existing YBC scale, and high cost in the prior art. In the scale, a guide circular arc plate and a sliding circular arc plate are concentrically arranged, first and second connecting scale plates are arranged along the radial direction of the guide circular arc plate, a second straight scale is fixedly connected with the guide circular arc plate through the first connecting scale plate, and a third straight scale is fixedly connected with the sliding circular arc plate through the second connecting scale plate. The first straight scale is rotationally connected with the second straight scale, the first straight scale is arranged along the axial direction of a first straight pipe section, and the second straight scale is arranged along the axial direction of a second straight pipe section. The third straight scale is rotationally connected with a fourth straight scale, the third straight scale is arranged along the axial direction of the second straight pipe section, and the fourth straight scale is arranged along the axial direction of a third straight pipe section. The application can be used for YBC parameter measurement of a bent pipe.

The application discloses a hull measurement auxiliary tool, which comprises a main ruler, a sub-ruler connected to one end of the main ruler, and reflective sheets arranged at both ends of the connection between the main ruler and the sub-ruler. A first sliding groove is formed in the upper end of the main ruler, a sliding assembly is arranged on the main ruler, an adjusting assembly is arranged on the sliding assembly, and a limiting assembly is mounted on the adjusting assembly. The main ruler is used to draw auxiliary lines on a hull, and the main ruler and the sub-ruler can be used as general rulers to measure straightness or excess amount. Meanwhile, the main ruler and the sub-ruler can also be used as extension rulers for blocked structure points. An angle protractor hole is used to measure the included angle between lines. The sliding assembly can be used to conveniently draw and measure line segments along the main ruler, thereby improving the measurement efficiency. The adjusting assembly can be used to replace the sliding plate. The sliding plate can be conveniently replaced after being worn out after long-time use, thereby improving the measurement accuracy.

The invention discloses a multifunctional woodworking push saw table which comprises a working table, a table saw fixed in the middle of the working table, an adjustable positioning unit, a ruler backer part and an extension part. The adjustable positioning unit is arranged at one end of the workbench, provided with a positioning assembly capable of sliding in the width direction and an angle adjusting mechanism which is arranged on the positioning assembly and can be rotationally locked, and used for achieving accurate positioning of workpiece angle sawing. The ruler backer part is arranged at the other end of the workbench and can be movably adjusted and detached in the length direction, and a parallel reference is provided for linear sawing. The extending part is connected with the side edge of the workbench in an overturning mode and can be unfolded and fixed through the detachable supporting rod, so that the extending face and the workbench are coplanar to support a long workpiece. The device integrates the flexible positioning function of angle and linear cutting, has the working table board expansion capacity, is compact in structure and convenient and fast to adjust, and effectively improves the machining adaptability, the operation safety and the saw cutting precision.

The utility model relates to the technical field of pavement flatness detection, and discloses a pavement flatness detection structure which comprises a measuring ruler and a moving assembly, the measuring ruler is horizontally arranged and is installed on the moving assembly, and the moving assembly can drive the measuring ruler to move on a pavement; the lifting assembly is installed on the moving assembly, the lifting assembly is connected with the measuring ruler, and the lifting assembly can drive the measuring ruler to ascend and descend; the measuring ruler is rotatably connected to the lifting assembly through the rotating assembly so as to adjust the angle of the measuring ruler. By combining the design of the moving assembly, the lifting assembly and the rotating assembly, the problem that a traditional straight rod is inconvenient to carry is solved, and the detection flexibility, accuracy and applicability are improved.

The invention relates to the technical field of highway pavement detection and three-dimensional imaging, and discloses a highway pavement rut depth three-dimensional image reconstruction measurement method and system. According to the method, a structured light measurement combination is formed by a vehicle-mounted line laser projector and a high-speed industrial camera; a multi-scale gradient weighted gray centroid method is adopted to realize sub-pixel-level extraction of a laser center line, a pavement three-dimensional point cloud is reconstructed based on a triangulation principle in combination with a geometric error compensation model, adaptive curved surface fitting is performed through a curvature constrained moving least square method, and then an adaptive virtual ruler envelope detection method is adopted to calculate the rut depth. And fluctuation indexes are fed back to a front-end processing link through measurement quality closed-loop evaluation so as to dynamically optimize parameters, the rut depth measurement precision is superior to 1 mm, the repeatability error is smaller than 0.5 mm, and online detection of the vehicle speed of 60 km / h is supported.

This invention proposes a parallel auxiliary drawing board, comprising a rectangular drawing board with connecting slide rails on all four sides and a ruler whose two ends slide within the slide rails. The ruler is the same length as the long side of the rectangular drawing board. One end of the ruler slides within the slide rail via a first connecting member; the other end of the ruler slides within the slide rail via a second connecting member. Simultaneously, the bottom surface of the ruler has a groove for the second connecting member to slide within. This invention solves the problems of cumbersome and inaccurate operations in drawing horizontal and vertical parallel lines during the drafting process. The ruler's direction can change as it slides on the slide rails, from horizontal to vertical and from vertical to horizontal, reducing the cumbersome operations of changing the ruler's direction and requiring other rulers for drafting assistance, thus improving work efficiency. The track also serves to fix the ruler, ensuring drafting accuracy.

The utility model discloses a measuring instrument for measuring the gradient of a roadbed slope, and belongs to the technical field of roadbed slope measurement. The straight ruler mainly comprises at least three groups of straight rulers which comprise a first straight ruler, a second straight ruler and a third straight ruler; a magnet sheet is mounted at the bottom of the slope scale, and the slope scale is adsorbed on the straight scale through the magnet sheet; the rotating mechanism is provided with two groups of mounting plates mounted at one side end, close to the third ruler, of the second ruler, a rotating rod is mounted between the two groups of mounting plates, an arc angle groove is formed in one side, close to the second ruler, of the third ruler, a movable sleeve is mounted in the arc angle groove, and the rotating rod is sleeved with the movable sleeve; and one end angle of the third ruler with the arc angle groove is an arc angle. According to the measuring instrument for measuring the gradient of the roadbed side slope, the lengths and the angles of the multiple sets of rulers are adjusted, so that the side slopes at multiple angles are rapidly tested, time and labor are saved, and the measuring efficiency is improved.

This invention discloses a tool for measuring the negative bending moment of a prestressed box girder under tension, comprising a measuring structure and two indicating structures. In use, a series multi-link mechanism is used to adjust the positions of the two second indicator needles in the two indicating structures, making them point to a pre-set reference point and a marker line, respectively. When the jack operates in stages, the steel strands are stretched, causing the marker line to shift. The user can slide the second indicator needle on one side of the marker line to the designated position and then read the length between the two first indicator needles on the measuring ruler. This structural design allows the user to easily measure the elongation of the steel strands from the side, and eliminates the need to contact the jack after it has been used, resulting in lower risk and greater safety.

The utility model discloses a combined vernier length measuring structure which comprises a plate-shaped first structural body and a plate-shaped second structural body, wherein the edges of the first structural body and the second structural body are attached. The first structural body comprises at least four straight edges which are connected end to end, the first structural body is provided with at least one concave angle, and a length scale mark is arranged on one straight edge in the horizontal direction of the concave angle; the second structural body comprises at least three straight edges which are connected end to end, the second structural body is provided with at least one convex corner, vernier scale marks are arranged on one straight edge in the horizontal direction of the convex corner, and the concave corner and the convex corner are both right angles; the ruler has the advantages that the principle of a vernier caliper is adopted, the first structural body and the second structural body are used in cooperation, and compared with an existing ruler, the ruler can effectively improve the length measuring precision.

The utility model relates to the technical field of measuring rulers, in particular to a multifunctional measuring ruler for surveying and mapping engineering, which comprises a straight ruler piece, a plurality of first scale grooves are arranged on the upper surface of the straight ruler piece, a deflection groove is arranged on the side wall of the straight ruler piece, the inner wall of the deflection groove is fixedly connected with a fixing column, and the fixing column is fixedly connected with the ruler piece. The end, away from the ruler piece, of the fixing column is fixedly connected with a limiting disc, a deflection piece is movably installed on the outer surface of the fixing column, an observation groove is formed in the side wall of the deflection piece, and an angle groove is formed in the inner wall of the deflection groove. The multifunctional measuring tape is foldable, convenient to carry, capable of measuring the inclination angle of an object, more in function and wider in application range, the fourth scale groove is used for measuring the width of a gap, the moving piece and the baffle are arranged for assisting in measuring the width of the wall gap, the tape piece can be stretched outwards by pulling the pulling plate, and then a larger length measuring range is achieved.

The utility model relates to the technical field of measuring tools, and discloses a drawing measuring scale for engineering cost, which comprises a main scale, an outer surface of which is movably connected with an auxiliary scale. And the locking mechanism is arranged at the top end of the auxiliary ruler. According to the drawing measuring ruler for the engineering cost, the straight ruler and the protractor are integrated, in the engineering cost drawing measuring and drawing work, the measuring ruler can be directly used for completing angle measurement and straight line drawing, workers do not need to frequently switch tools, the operation procedures are greatly reduced, and the working efficiency is remarkably improved; time waste and measurement errors caused by tool switching are avoided, the data basis of engineering cost calculation is accurately guaranteed, due to the design of the locking mechanism, it can be guaranteed that the auxiliary ruler stably stays at the required angle position during rotation, angle deviation caused by slight shaking is avoided, and the engineering cost is accurately calculated. The precision problem of a traditional measuring tool in the aspect of angle measurement is solved.

The utility model relates to an auxiliary device for a compression-shear strength test of a formed marble adhesive, which comprises a bottom plate, a fixed side plate and a push-pull side plate, the fixed side plate and the bottom plate are fixed by welding, and the push-pull side plate can translate on the bottom plate to control the distance between the push-pull side plate and the fixed side plate. Limiting fixing blocks are arranged on the opposite side walls of the fixing side plate and the push-pull side plate to clamp a test block. The limiting fixing blocks on the fixed side plate and the push-pull side plate can quickly clamp a test piece, the test piece can be quickly positioned without a marking tool and a steel ruler, the requirement of a test on the size of a stone lap joint surface is ensured, and meanwhile, the influence of shaking and inclination of the test piece on a test result during sample preparation is avoided.

The utility model relates to the technical field of automobile part production, and discloses a compressor support measuring device, which comprises a rectangular bottom plate, screw rods symmetrically and fixedly connected to the top of the bottom plate, the screw rods are stud-shaped, and the top of the bottom plate is provided with a plurality of screw holes; the measuring structure is arranged at the top of the bottom plate and used for measuring the compressor support, the measuring structure comprises rulers and a top cover, the rulers are symmetrically arranged on the two sides of the bottom plate, the top cover is clamped to the top of the bottom plate, and the rulers can measure the width of the compressor support at the top of the bottom plate; the measuring structure not only can measure the size of the compressor support placed at the top of the bottom plate, but also can directly measure whether the hole formed in the wall surface of the compressor is correct, so that rapid detection is realized, and the qualification of the compressor support can be detected by the way; nylon ropes on the wall surfaces of the upper rod and the lower rod can prevent the top cover from being lost when the top cover is separated from the top of the bottom plate.

The utility model relates to the technical field of wheel detection, in particular to a rim abrasion measuring instrument for a rail transit vehicle. Comprising a straight ruler, a base ruler, a rotating mechanism and an adjusting mechanism, the adjusting mechanism comprises an adjusting seat, a sliding block, a guide column, a threaded knob, a reference table and a circumferential wear measuring ruler, and when the position of the circumferential wear measuring ruler needs to be adjusted so that multiple point positions of a rim area can be completely detected, firstly, the threaded knob is unscrewed; and then the circumferential wear measuring scale can be directly pulled to move to drive the sliding block to move for position adjustment, and after adjustment is completed, the threaded knob is screwed to carry out detection again, so that the problem that an existing wheel detection tool cannot carry out complete point position detection on a wheel flange area when carrying out wheel flange wear detection can be solved.

This utility model discloses a highway smoothness testing device, relating to the field of highway smoothness technology. It includes a ruler with a straight groove on one side of its outer wall and multiple sliding grooves on the same side. Multiple sliding components are slidably connected to one side of the ruler's outer wall, and multiple sliders are added to one side of each sliding component's outer wall. Measuring pins are inserted into the centers of the inner cavities of each sliding component, and compression springs are fitted around the centers of the outer walls of each measuring pin. When the bottom of the measuring pin is aligned with the maximum gap, rotating the scale knob removes the constraint of the groove on the metal contact, causing the measuring pin to automatically press down under the drive of the compression springs. This reduces the frequency of frictional contact between the gauge and the road surface during manual operation, thereby reducing the risk of tool wear. The scale lines are directly marked on the outer wall of the measuring pin, and the operator can read the gap height by observing the relative position of the scale lines on the outer wall of the measuring pin and the top of the sliding components.

The application belongs to the technical field of wood processing tools and discloses a wood multidirectional cutting guide plate with a positioning scale, which comprises a guide plate main body, a mounting groove is formed in the side surface of the guide plate main body, and a ruler is inserted and mounted in the mounting groove. The positioning protrusion of the positioning column cooperates with the positioning gap in the convex column positioning groove, can be directly clamped into the gap corresponding to the preset angle, and mechanical positioning is realized. This structure does not need manual repeated measurement, controls the angle error in the mechanical tolerance range, can quickly switch various cutting angles, solves the problem of the traditional mode of "depending on experience and large error", cooperates with the length positioning of the ruler, can complete straight line cutting, can realize 45° bevel cutting, arbitrary angle mortise and tenon cutting and the like, covers the diversified needs of furniture manufacturing, decoration and the like scenes, breaks through the limitation of the traditional guide plate "single function", meanwhile, the plug-in connection of the positioning column and the positioning groove limits rotation, the magnet adsorption cutting platform prevents translation.